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engine transformers
prompt completion
temp 0.2
top_p 0.95
max_new_tokens 1024
n_completions 10

Solutions

func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}
```swift
// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}
<|file_separator|>

func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}
```swift
// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are

func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}
```swift
// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}

// Check if in given array of numbers, are

func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                return true
            }
        }
    }
    return false
}
```swift
// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                return true
            }
        }
    }
    return false
}
<|file_separator|>

func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
  var hasCloseElements = false
  for i in 0..<numbers.count {
    for j in (i+1)..<numbers.count {
      if abs(numbers[i] - numbers[j]) <= threshold {
        hasCloseElements = true
        break
      }
    }
  }
  return hasCloseElements
}
```swift
// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
  var hasCloseElements = false
  for i in 0..<numbers.count {
    for j in (i+1)..<numbers.count {
      if abs(numbers[i] - numbers[j]) <= threshold {
        hasCloseElements = true
        break
      }
    }
  }
  return hasCloseElements
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
  var hasCloseElements = false
  for i in 0..<numbers.count {
    for j in (i+1)..<numbers.count {
      if abs(numbers[i] - numbers[j]) <= threshold {
        hasCloseElements = true
        break
      }
    }
  }
  return hasCloseElements
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
  var hasCloseElements = false
  for i in 0..<numbers.count {
    for j in (i+1)..<numbers.count {
      if abs(numbers[i] - numbers[j]) <= threshold {
        hasCloseElements = true
        break
      }
    }
  }
  return hasCloseElements
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
  var hasCloseElements = false
  for i in 0..<numbers.count {
    for j in (i+1)..<numbers.count {
      if abs(numbers[i] - numbers[j]) <= threshold {
        hasCloseElements = true
        break
      }
    }
  }
  return hasCloseElements
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
  var hasCloseElements = false
  for i in 0..<numbers.count {
    for j in (i+1)..<numbers.count {
      if abs(numbers[i] - numbers[j]) <= threshold {
        hasCloseElements = true
        break
      }
    }
  }
  return hasCloseElements
}

// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
  var hasCloseElements = false
  for i in 0..<numbers.count {
    for j

func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}
```swift
// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}
<|file_separator|>

func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                return true
            }
        }
    }
    return false
}
```swift
// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                return true
            }
        }
    }
    return false
}
<|file_separator|>

func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                return true
            }
        }
    }
    return false
}
```swift
// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                return true
            }
        }
    }
    return false
}
<|file_separator|>

func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}
```swift
// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    var result = false
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                result = true
            }
        }
    }
    return result
}
<|file_separator|>

func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                return true
            }
        }
    }
    return false
}
```swift
// Check if in given array of numbers, are any two numbers closer to each other than
// given threshold.
// hasCloseElements(numbers: [1.0, 2.0, 3.0], threshold: 0.5) == false
// hasCloseElements(numbers: [1.0, 2.8, 3.0, 4.0, 5.0, 2.0], threshold: 0.3) == true
func hasCloseElements(numbers: [Double], threshold: Double) -> Bool {
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            if abs(numbers[i] - numbers[j]) <= threshold {
                return true
            }
        }
    }
    return false
}
<|file_separator|>

func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
            parenGroup += String(char)
        } else if char == ")" {
            parenCount -= 1
            parenGroup += String(char)
            if parenCount == 0 {
                parenGroups.append(parenGroup)
                parenGroup = ""
            }
        } else {
            parenGroup += String(char)
        }
    }
    return parenGroups
}
```swift
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
            parenGroup += String(char)
        } else if char == ")" {
            parenCount -= 1
            parenGroup += String(char)
            if parenCount == 0 {
                parenGroups.append(parenGroup)
                parenGroup = ""
            }
        } else {
            parenGroup += String(char)
        }
    }
    return parenGroups
}
<|file_separator|>
 // XCTAssertTrue failed

func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
        } else if char == ")" {
            parenCount -= 1
        }
        parenGroup.append(char)
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    return parenGroups
}
```swift
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
        } else if char == ")" {
            parenCount -= 1
        }
        parenGroup.append(char)
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    return parenGroups
}
<|file_separator|>
 // XCTAssertTrue failed

func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
        } else if char == ")" {
            parenCount -= 1
        }
        parenGroup += String(char)
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    return parenGroups
}
```swift
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
        } else if char == ")" {
            parenCount -= 1
        }
        parenGroup += String(char)
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
        } else if char == ")" {
            parenCount -= 1
        }
        parenGroup += String(char)
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
        } else if char == ")" {
            parenCount -= 1
        }
        parenGroup += String(char)
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
        } else if char == ")" {
            parenCount -= 1
        }
        parenGroup += String(char)
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
        } else if char == ")" {
            parenCount -= 1
        }
        parenGroup += String(char)
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array
 // XCTAssertTrue failed

func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    
    for char in parenString {
        if char == "(" {
            parenGroup += String(char)
        } else if char == ")" {
            parenGroup += String(char)
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    
    return parenGroups
}
```swift
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    
    for char in parenString {
        if char == "(" {
            parenGroup += String(char)
        } else if char == ")" {
            parenGroup += String(char)
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    
    for char in parenString {
        if char == "(" {
            parenGroup += String(char)
        } else if char == ")" {
            parenGroup += String(char)
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    
    for char in parenString {
        if char == "(" {
            parenGroup += String(char)
        } else if char == ")" {
            parenGroup += String(char)
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    
    for char in parenString {
        if char == "(" {
            parenGroup += String(char)
        } else if char == ")" {
            parenGroup += String(char)
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    
    for char in parenString {
        if char == "(" {
            parenGroup += String(char)
        } else if char == ")" {
            parenGroup += String(char)
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
    }
    
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    
    for char in parenString {
        if
 // XCTAssertTrue failed

func separateParenGroups(parenString: String) -> [String] {
    var result = [String]()
    var currentGroup = ""
    var openParenCount = 0
    var closeParenCount = 0
    for char in parenString {
        if char == "(" {
            openParenCount += 1
            currentGroup += String(char)
        } else if char == ")" {
            closeParenCount += 1
            currentGroup += String(char)
            if openParenCount == closeParenCount {
                result.append(currentGroup)
                currentGroup = ""
                openParenCount = 0
                closeParenCount = 0
            }
        }
    }
    return result
}
```swift
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var result = [String]()
    var currentGroup = ""
    var openParenCount = 0
    var closeParenCount = 0
    for char in parenString {
        if char == "(" {
            openParenCount += 1
            currentGroup += String(char)
        } else if char == ")" {
            closeParenCount += 1
            currentGroup += String(char)
            if openParenCount == closeParenCount {
                result.append(currentGroup)
                currentGroup = ""
                openParenCount = 0
                closeParenCount = 0
            }
        }
    }
    return result
}
<|file_separator|>

func separateParenGroups(parenString: String) -> [String] {
    var result = [String]()
    var currentGroup = ""
    var openParenCount = 0
    var closeParenCount = 0
    for char in parenString {
        if char == "(" {
            openParenCount += 1
            currentGroup += String(char)
        } else if char == ")" {
            closeParenCount += 1
            currentGroup += String(char)
            if openParenCount == closeParenCount {
                result.append(currentGroup)
                currentGroup = ""
                openParenCount = 0
                closeParenCount = 0
            }
        }
    }
    return result
}
```swift
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var result = [String]()
    var currentGroup = ""
    var openParenCount = 0
    var closeParenCount = 0
    for char in parenString {
        if char == "(" {
            openParenCount += 1
            currentGroup += String(char)
        } else if char == ")" {
            closeParenCount += 1
            currentGroup += String(char)
            if openParenCount == closeParenCount {
                result.append(currentGroup)
                currentGroup = ""
                openParenCount = 0
                closeParenCount = 0
            }
        }
    }
    return result
}
<|file_separator|>

func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
            parenGroup += String(char)
        } else if char == ")" {
            parenCount -= 1
            parenGroup += String(char)
            if parenCount == 0 {
                parenGroups.append(parenGroup)
                parenGroup = ""
            }
        } else {
            parenGroup += String(char)
        }
    }
    return parenGroups
}
```swift
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            parenCount += 1
            parenGroup += String(char)
        } else if char == ")" {
            parenCount -= 1
            parenGroup += String(char)
            if parenCount == 0 {
                parenGroups.append(parenGroup)
                parenGroup = ""
            }
        } else {
            parenGroup += String(char)
        }
    }
    return parenGroups
}
<|file_separator|>
 // XCTAssertTrue failed

func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenStack = [String]()
    var parenCount = 0
    var parenIndex = 0
    
    for char in parenString {
        if char == "(" {
            parenStack.append(String(char))
            parenCount += 1
        } else if char == ")" {
            parenStack.append(String(char))
            parenCount -= 1
        }
        
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
        
        parenGroup += String(char)
        parenIndex += 1
    }
    
    return parenGroups
}
```swift
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenStack = [String]()
    var parenCount = 0
    var parenIndex = 0
    
    for char in parenString {
        if char == "(" {
            parenStack.append(String(char))
            parenCount += 1
        } else if char == ")" {
            parenStack.append(String(char))
            parenCount -= 1
        }
        
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
        
        parenGroup += String(char)
        parenIndex += 1
    }
    
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenStack = [String]()
    var parenCount = 0
    var parenIndex = 0
    
    for char in parenString {
        if char == "(" {
            parenStack.append(String(char))
            parenCount += 1
        } else if char == ")" {
            parenStack.append(String(char))
            parenCount -= 1
        }
        
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
        
        parenGroup += String(char)
        parenIndex += 1
    }
    
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenStack = [String]()
    var parenCount = 0
    var parenIndex = 0
    
    for char in parenString {
        if char == "(" {
            parenStack.append(String(char))
            parenCount += 1
        } else if char == ")" {
            parenStack.append(String(char))
            parenCount -= 1
        }
        
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
        
        parenGroup += String(char)
        parenIndex += 1
    }
    
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var parenGroups = [String]()
    var parenGroup = ""
    var parenStack = [String]()
    var parenCount = 0
    var parenIndex = 0
    
    for char in parenString {
        if char == "(" {
            parenStack.append(String(char))
            parenCount += 1
        } else if char == ")" {
            parenStack.append(String(char))
            parenCount -= 1
        }
        
        if parenCount == 0 {
            parenGroups.append(parenGroup)
            parenGroup = ""
        }
        
        parenGroup += String(char)
        parenIndex += 1
    }
    
    return parenGroups
}

// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
 // XCTAssertTrue failed

```swift
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var result = [String]()
    var parenString = parenString
    while parenString.count > 0 {
        let parenGroup = parenString.substring(to: parenString.index(after: parenString.startIndex))
        if parenGroup.count > 0 && parenGroup.count % 2 == 0 {
            let openParen = parenGroup.substring(to: parenGroup.index(after: parenGroup.startIndex))
            let closeParen = parenGroup.substring(from: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
            let parenGroup = parenGroup.substring(to: parenGroup.index(before: parenGroup.endIndex))
            let parenGroup = parenGroup.substring(from: parenGroup.index(after: parenGroup.startIndex))
XCTAssertTrue(separateParenGroups(parenString: "(()()) ((())) () ((())()())") == ["(()())", "((()))", "()", "((())()())"]) // cannot find 'separateParenGroups' in scope
XCTAssertTrue(separateParenGroups(parenString: "() (()) ((())) (((())))") == ["()", "(())", "((()))", "(((())))"]) // cannot find 'separateParenGroups' in scope
XCTAssertTrue(separateParenGroups(parenString: "(()(())((())))") == ["(()(())((())))"]) // cannot find 'separateParenGroups' in scope
XCTAssertTrue(separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]) // cannot find 'separateParenGroups' in scope

func separateParenGroups(parenString: String) -> [String] {
    var result = [String]()
    var currentGroup = ""
    var openParenCount = 0
    var closeParenCount = 0
    
    for char in parenString {
        if char == "(" {
            openParenCount += 1
        } else if char == ")" {
            closeParenCount += 1
        }
        
        if openParenCount == closeParenCount {
            result.append(currentGroup)
            currentGroup = ""
            openParenCount = 0
            closeParenCount = 0
        }
        
        currentGroup.append(char)
    }
    
    if currentGroup.count > 0 {
        result.append(currentGroup)
    }
    
    return result
}
```swift
// Input to this function is a string containing multiple groups of nested parentheses. Your goal is to
// separate those group into separate strings and return the array of those.
// Separate groups are balanced (each open brace is properly closed) and not nested within each other
// Ignore any spaces in the input string.
// separateParenGroups(parenString: "( ) (( )) (( )( ))") == ["()", "(())", "(()())"]
func separateParenGroups(parenString: String) -> [String] {
    var result = [String]()
    var currentGroup = ""
    var openParenCount = 0
    var closeParenCount = 0
    
    for char in parenString {
        if char == "(" {
            openParenCount += 1
        } else if char == ")" {
            closeParenCount += 1
        }
        
        if openParenCount == closeParenCount {
            result.append(currentGroup)
            currentGroup = ""
            openParenCount = 0
            closeParenCount = 0
        }
        
        currentGroup.append(char)
    }
    
    if currentGroup.count > 0 {
        result.append(currentGroup)
    }
    
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}
```swift
// Given a positive floating point number, it can be decomposed into
// and integer part (largest integer smaller than given number) and decimals
// (leftover part always smaller than 1).
// Return the decimal part of the number.
// truncateNumber(number: 3.5) == 0.5
func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}
<|file_separator|>```

func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}

func nextSmallestNumber(number: Int) -> Int {
    let digits = String(number).map { Int(String($0))! }
    let digitsCount = digits.count
    var digitsCopy = digits
    var index = digitsCount - 1
    while index >= 0 {
        if digitsCopy[index] < digitsCopy[index - 1] {
            let maxIndex = digitsCopy.lastIndex(of: digitsCopy[index - 1])!
            digitsCopy.swapAt(index, maxIndex)
            digitsCopy.remove(at: maxIndex)
            digitsCopy.sort()
            break
        }
        index -= 1
    }
    return Int(String(digitsCopy))!
}

func nextLargestNumber(number: Int) -> Int {
    let digits = String(number).map { Int(String($0))! }
    let digitsCount = digits.count
    var digitsCopy = digits
    var index = digitsCount - 1
    while index >= 0 {
        if digitsCopy[index] > digitsCopy[index - 1] {
            let minIndex = digitsCopy.lastIndex(of: digitsCopy[index - 1])!
            digitsCopy.swapAt(index, minIndex)
            digitsCopy.remove(at: minIndex)
            digitsCopy.sort()
            break
        }
        index -= 1
    }
    return Int(String(digitsCopy))!
}
```swift
// Given a positive floating point number, it can be decomposed into
// and integer part (largest integer smaller than given number) and decimals
// (leftover part always smaller than 1).
// Return the decimal part of the number.
// truncateNumber(number: 3.5) == 0.5
func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}

// Given a positive integer, return the next smallest positive integer
// containing same number of digits.
// nextSmallestNumber(number: 123) == 123
// nextSmallestNumber(number: 1234) == 124
// nextSmallestNumber(number: 12345) == 125
// nextSmallestNumber(number: 123456) == 135
// nextSmallestNumber(number: 1234567) == 135
// nextSmallestNumber(number: 12345678) == 135
// nextSmallestNumber(number: 123456789) == 135
func nextSmallestNumber(number: Int) -> Int {
    let digits = String(number).map { Int(String($0))! }
    let digitsCount = digits.count
    var digitsCopy = digits
    var index = digitsCount - 1
    while index >= 0 {
        if digitsCopy[index] < digitsCopy[index - 1] {
            let maxIndex = digitsCopy.lastIndex(of: digitsCopy[index - 1])!
            digitsCopy.swapAt(index, maxIndex)
            digitsCopy.remove(at: maxIndex)
            digitsCopy.sort()
            break
        }
        index -= 1
    }
    return Int(String(digitsCopy))!
}

// Given a positive integer, return the next largest positive integer
// containing same number of digits.
// nextLargestNumber(number: 123) == 125
// nextLargestNumber(number: 1234) == 132
// nextLargestNumber(number: 12345) == 135
// nextLargestNumber(number: 123456) == 145
// nextLargestNumber(number: 1234567) == 145
// nextLargestNumber(number: 12345678) == 145
// nextLargestNumber(number: 123456789) == 145
func nextLargestNumber(number: Int) -> Int {
    let digits = String(number).map { Int(String($0))! }
    let digitsCount = digits.count
    var digitsCopy = digits
    var index = digitsCount - 1
    while index >= 0 {
        if digitsCopy[index] > digitsCopy[index - 1] {
            let minIndex = digitsCopy.lastIndex(of: digitsCopy[index - 1])!
            digitsCopy.swapAt(index, minIndex)
            digitsCopy.remove(at: minIndex)
            digitsCopy.sort()
            break
        }
        index -= 1
    }
    return Int(String(digitsCopy))!
}

// Given a positive integer, return the next smallest positive integer
// containing same number of digits.
// nextSmallestNumber(number: 123) == 123
// nextSmallestNumber(number: 1234) == 124
// nextSmallestNumber(number: 12345) == 125
// nextSmallestNumber(number: 123456) == 135
// nextSmallestNumber(number: 1234567) == 135
// nextSmallestNumber(number: 12345678) == 135
// nextSmallestNumber(number: 123456789) == 135
func nextSmallestNumber(number: Int) -> Int {
    let digits = String(number).map { Int(String($0))! }
    let digitsCount = digits.count
    var digitsCopy = digits
    var index = digitsCount - 1
    while index >= 0 {
        if digitsCopy[index] < digitsCopy[index - 1] {
            let maxIndex = digitsCopy.lastIndex(of: digitsCopy[index - 1])!
            digitsCopy.swapAt(index, maxIndex)
            digitsCopy.remove(at: maxIndex)
            digitsCopy.sort()
            break
        }
        index -= 1
    }
    return Int(String(digitsCopy))!
}

// Given a positive integer, return the
return Int(String(digitsCopy))! // no exact matches in call to initializer
return Int(String(digitsCopy))! // no exact matches in call to initializer

func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}

func largestDifference(array: [Int]) -> Int {
    if array.count < 2 {
        throw "Array must contain at least 2 elements"
    }
    
    var largestDifference = 0
    
    for i in 0..<array.count {
        for j in i+1..<array.count {
            let difference = array[j] - array[i]
            if difference > largestDifference {
                largestDifference = difference
            }
        }
    }
    
    return largestDifference
}

func numberOfVowels(string: String) -> Int {
    let vowels = "aeiou"
    var count = 0
    
    for char in string {
        if vowels.contains(char) {
            count += 1
        }
    }
    
    return count
}

func numberOfConsonants(string: String) -> Int {
    let consonants = "bcdfghjklmnpqrstvwxyz"
    var count = 0
    
    for char in string {
        if consonants.contains(char) {
            count += 1
        }
    }
    
    return count
}

func largestProduct(array: [Int]) -> Int {
    if array.count < 2 {
        throw "Array must contain at least 2 elements"
    }
    
    var largestProduct = 0
    
    for i in 0..<array.count {
        for j in i+1..<array.count {
            let product = array[i] * array[j]
            if product > largestProduct {
                largestProduct = product
            }
        }
    }
    
    return largestProduct
}

func largestProduct(array: [Int]) -> Int {
    if array.count < 3 {
        throw "Array must contain at least 3 elements"
    }
    
    var largestProduct = 0
    
    for i in 0..<array.count {
        for j in i+1..<array.count {
            for k in j+1..<array.count {
                let product = array[i] * array[j] * array[k]
                if product > largestProduct {
                    largestProduct = product
                }
            }
        }
    }
    
    return largestProduct
}
```swift
// Given a positive floating point number, it can be decomposed into
// and integer part (largest integer smaller than given number) and decimals
// (leftover part always smaller than 1).
// Return the decimal part of the number.
// truncateNumber(number: 3.5) == 0.5
func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}

// Given an array of integers, return the largest difference between any two elements.
// For example, given [1, 2, 3, 4, 5], the function should return 4, since 5 - 1 == 4.
// If the array contains less than 2 elements, the function should throw an exception.
// For example, given [1, 2], the function should return 0, since there are less than 2 elements.
// Note: The function should be able to handle negative numbers.
func largestDifference(array: [Int]) -> Int {
    if array.count < 2 {
        throw "Array must contain at least 2 elements"
    }
    
    var largestDifference = 0
    
    for i in 0..<array.count {
        for j in i+1..<array.count {
            let difference = array[j] - array[i]
            if difference > largestDifference {
                largestDifference = difference
            }
        }
    }
    
    return largestDifference
}

// Given a string, return the number of vowels in it.
// For example, given "Hello World", the function should return 3.
func numberOfVowels(string: String) -> Int {
    let vowels = "aeiou"
    var count = 0
    
    for char in string {
        if vowels.contains(char) {
            count += 1
        }
    }
    
    return count
}

// Given a string, return the number of consonants in it.
// For example, given "Hello World", the function should return 10.
func numberOfConsonants(string: String) -> Int {
    let consonants = "bcdfghjklmnpqrstvwxyz"
    var count = 0
    
    for char in string {
        if consonants.contains(char) {
            count += 1
        }
    }
    
    return count
}

// Given an array of integers, return the largest product of any two elements.
// For example, given [1, 2, 3, 4, 5], the function should return 20, since 1 * 2 == 2.
// If the array contains less than 2 elements, the function should throw an exception.
// For example, given [1, 2], the function should return 2, since there are less than 2 elements.
// Note: The function should be able to handle negative numbers.
func largestProduct(array: [Int]) -> Int {
    if array.count < 2 {
        throw "Array must contain at least 2 elements"
    }
    
    var largestProduct = 0
    
    for i in 0..<array.count {
        for j in i+1..<array.count {
            let product = array[i] * array[j]
            if product > largestProduct {
                largestProduct = product
            }
        }
    }
    
    return largestProduct
}

// Given an array of integers, return the largest product of any three elements.
// For example, given [1, 2, 3, 4, 5], the function should return 60, since 1 * 2 * 3 == 60.
// If the array contains less than 3 elements, the function should throw an exception.
// For example, given [1, 2, 3], the function should return 6, since there are less than 3 elements.
// Note: The function should be able to handle negative numbers.
func largestProduct(array: [Int]) -> Int {
    if array.count < 3 {
        throw "Array must contain at least 3 elements"
    }
    
    var largestProduct = 0
    
    for i in 0..<array.count {
        for j in i+1..<array.count {
            for k in j+1..<array.count {
                let product = array[i] * array[j] * array[k]
                if product > largestProduct {
                    largestProduct = product
                }
            }
        }
    }
    
    return largestProduct
}

// Given a string, return the number of words in it.
// For example, given "Hello World", the function should return 2.
func numberOfWords(string: String) -> Int {
    let words = string.components(separatedBy: " ")
    return
throw "Array must contain at least 2 elements" // thrown expression type 'String' does not conform to 'Error'
throw "Array must contain at least 2 elements" // error is not handled because the enclosing function is not declared 'throws'
throw "Array must contain at least 2 elements" // error is not handled because the enclosing function is not declared 'throws'
throw "Array must contain at least 2 elements" // thrown expression type 'String' does not conform to 'Error'
func largestProduct(array: [Int]) -> Int { // invalid redeclaration of 'largestProduct(array:)'
throw "Array must contain at least 3 elements" // error is not handled because the enclosing function is not declared 'throws'
throw "Array must contain at least 3 elements" // thrown expression type 'String' does not conform to 'Error'

func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}
```swift
// Given a positive floating point number, it can be decomposed into
// and integer part (largest integer smaller than given number) and decimals
// (leftover part always smaller than 1).
// Return the decimal part of the number.
// truncateNumber(number: 3.5) == 0.5
func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}
<|file_separator|>

func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}

func nextSmallestNumber(number: Int) -> Int {
    var number = number
    var digits = [Int]()
    while number > 0 {
        digits.append(number % 10)
        number /= 10
    }
    digits.sort()
    var result = 0
    for i in 0..<digits.count {
        result += digits[i] * Int(pow(Double(10), Double(digits.count - i - 1)))
    }
    return result
}

func nextLargestNumber(number: Int) -> Int {
    var number = number
    var digits = [Int]()
    while number > 0 {
        digits.append(number % 10)
        number /= 10
    }
    digits.sort()
    var result = 0
    for i in 0..<digits.count {
        result += digits[i] * Int(pow(Double(10), Double(digits.count - i - 1)))
    }
    return result
}
```swift
// Given a positive floating point number, it can be decomposed into
// and integer part (largest integer smaller than given number) and decimals
// (leftover part always smaller than 1).
// Return the decimal part of the number.
// truncateNumber(number: 3.5) == 0.5
func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}

// Given a positive integer, return the next smallest positive integer
// containing the same number of digits.
// nextSmallestNumber(number: 12345) == 12354
func nextSmallestNumber(number: Int) -> Int {
    var number = number
    var digits = [Int]()
    while number > 0 {
        digits.append(number % 10)
        number /= 10
    }
    digits.sort()
    var result = 0
    for i in 0..<digits.count {
        result += digits[i] * Int(pow(Double(10), Double(digits.count - i - 1)))
    }
    return result
}

// Given a positive integer, return the next largest positive integer
// containing the same number of digits.
// nextLargestNumber(number: 12345) == 12435
func nextLargestNumber(number: Int) -> Int {
    var number = number
    var digits = [Int]()
    while number > 0 {
        digits.append(number % 10)
        number /= 10
    }
    digits.sort()
    var result = 0
    for i in 0..<digits.count {
        result += digits[i] * Int(pow(Double(10), Double(digits.count - i - 1)))
    }
    return result
}

// Given a positive integer, return the next smallest positive integer
// containing the same number of digits.
// nextSmallestNumber(number: 12345) == 12354
func nextSmallestNumber(number: Int) -> Int {
    var number = number
    var digits = [Int]()
    while number > 0 {
        digits.append(number % 10)
        number /= 10
    }
    digits.sort()
    var result = 0
    for i in 0..<digits.count {
        result += digits[i] * Int(pow(Double(10), Double(digits.count - i - 1)))
    }
    return result
}

// Given a positive integer, return the next largest positive integer
// containing the same number of digits.
// nextLargestNumber(number: 12345) == 12435
func nextLargestNumber(number: Int) -> Int {
    var number = number
    var digits = [Int]()
    while number > 0 {
        digits.append(number % 10)
        number /= 10
    }
    digits.sort()
    var result = 0
    for i in 0..<digits.count {
        result += digits[i] * Int(pow(Double(10), Double(digits.count - i - 1)))
    }
    return result
}

// Given a positive integer, return the next smallest positive integer
// containing the same number of digits.
// nextSmallestNumber(number: 12345) == 12354
func nextSmallestNumber(number: Int) -> Int {
    var number = number
    var digits = [Int]()
    while number > 0 {
        digits.append(number % 10)
        number /= 10
    }
    digits.sort()
    var result = 0
    for i in 0..<digits.count {
        result += digits[i] * Int(pow(Double(10), Double(digits.count - i - 1)))
    }
    return result
}

// Given a positive integer, return the next smallest positive integer
// containing the same number of digits.
// nextLargestNumber(number: 12345) == 12435
func nextLargestNumber(number: Int) -> Int {
    var number = number
    var digits = [Int]()
    while number > 0 {
        digits.append(number % 10)
        number /= 10
    }
    digits.sort()
    var result = 0
    for i in 0..<digits.count {
        result += digits[i] * Int(pow(Double(10), Double(digits.count - i - 1)))
    }
    return result
}

// Given a positive integer, return the next smallest positive integer
// containing the same number of digits.
// nextSmallestNumber

func truncateNumber(number: Double) -> Double {
    let decimal = number - Double(Int(number))
    return decimal
}
```swift
// Given a positive floating point number, it can be decomposed into
// and integer part (largest integer smaller than given number) and decimals
// (leftover part always smaller than 1).
// Return the decimal part of the number.
// truncateNumber(number: 3.5) == 0.5
func truncateNumber(number: Double) -> Double {
    let decimal = number - Double(Int(number))
    return decimal
}
<|file_separator|>

func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}

func nextSmallest(number: Int) -> Int {
    let digits = String(number).map { Int(String($0))! }
    let sortedDigits = digits.sorted()
    let sortedDigitsString = sortedDigits.map { String($0) }.joined()
    let nextSmallest = Int(sortedDigitsString)!
    return nextSmallest
}

func nextLargest(number: Int) -> Int {
    let digits = String(number).map { Int(String($0))! }
    let sortedDigits = digits.sorted()
    let sortedDigitsString = sortedDigits.map { String($0) }.joined()
    let nextLargest = Int(sortedDigitsString)!
    return nextLargest
}

func nextPrime(number: Int) -> Int {
    var number = number
    while !isPrime(number: number) {
        number += 1
    }
    return number
}

func isPrime(number: Int) -> Bool {
    if number < 2 {
        return false
    }
    if number == 2 {
        return true
    }
    if number % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(number))) {
        if number % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Given a positive floating point number, it can be decomposed into
// and integer part (largest integer smaller than given number) and decimals
// (leftover part always smaller than 1).
// Return the decimal part of the number.
// truncateNumber(number: 3.5) == 0.5
func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}

// Given a positive integer, return the next smallest positive integer
// containing the same number of digits.
// nextSmallest(number: 12345) == 12354
// nextSmallest(number: 123456) == 12365
// nextSmallest(number: 1234567) == 123765
func nextSmallest(number: Int) -> Int {
    let digits = String(number).map { Int(String($0))! }
    let sortedDigits = digits.sorted()
    let sortedDigitsString = sortedDigits.map { String($0) }.joined()
    let nextSmallest = Int(sortedDigitsString)!
    return nextSmallest
}

// Given a positive integer, return the next largest positive integer
// containing the same number of digits.
// nextLargest(number: 12345) == 12365
// nextLargest(number: 123456) == 12456
// nextLargest(number: 1234567) == 134567
func nextLargest(number: Int) -> Int {
    let digits = String(number).map { Int(String($0))! }
    let sortedDigits = digits.sorted()
    let sortedDigitsString = sortedDigits.map { String($0) }.joined()
    let nextLargest = Int(sortedDigitsString)!
    return nextLargest
}

// Given a positive integer, return the next largest prime number.
// nextPrime(number: 12345) == 12357
// nextPrime(number: 123456) == 12367
// nextPrime(number: 1234567) == 12373
func nextPrime(number: Int) -> Int {
    var number = number
    while !isPrime(number: number) {
        number += 1
    }
    return number
}

func isPrime(number: Int) -> Bool {
    if number < 2 {
        return false
    }
    if number == 2 {
        return true
    }
    if number % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(number))) {
        if number % i == 0 {
            return false
        }
    }
    return true
}

// Given a positive integer, return the next largest prime number.
// nextPrime(number: 12345) == 12357
// nextPrime(number: 123456) == 12367
// nextPrime(number: 1234567) == 12373
func nextPrime(number: Int) -> Int {
    var number = number
    while !isPrime(number: number) {
        number += 1
    }
    return number
}

func isPrime(number: Int) -> Bool {
    if number < 2 {
        return false
    }
    if number == 2 {
        return true
    }
    if number % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(number))) {
        if number % i == 0 {
            return false
        }
    }
    return true
}

// Given a positive integer, return the next largest prime number.
// nextPrime(number: 12345) == 12357
// nextPrime(number: 123456) == 12367
// nextPrime(number: 1234567) == 12373
func nextPrime(number: Int) -> Int {
    var number = number
    while !isPrime(number: number) {
        number += 1
    }
    return number
}

func isPrime(number: Int) -> Bool {
    if number < 2 {
        return false
    }
    if number == 2 {
        return true
    }
    if number % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(number))) {
        if number % i == 0 {
            return false
        }
    }

func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}
```swift
// Given a positive floating point number, it can be decomposed into
// and integer part (largest integer smaller than given number) and decimals
// (leftover part always smaller than 1).
// Return the decimal part of the number.
// truncateNumber(number: 3.5) == 0.5
func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}
<|file_separator|>

func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}
```swift
// Given a positive floating point number, it can be decomposed into
// and integer part (largest integer smaller than given number) and decimals
// (leftover part always smaller than 1).
// Return the decimal part of the number.
// truncateNumber(number: 3.5) == 0.5
func truncateNumber(number: Double) -> Double {
    return number - Double(Int(number))
}
<|file_separator|>

func truncateNumber(number: Double) -> Double {
    return number.truncatingRemainder(dividingBy: 1)
}
```swift
// Given a positive floating point number, it can be decomposed into
// and integer part (largest integer smaller than given number) and decimals
// (leftover part always smaller than 1).
// Return the decimal part of the number.
// truncateNumber(number: 3.5) == 0.5
func truncateNumber(number: Double) -> Double {
    return number.truncatingRemainder(dividingBy: 1)
}
<|file_separator|>

func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
```swift
// You're given an array of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
// at that point function should return true. Otherwise it should return false.
// belowZero(operations: [1, 2, 3]) == false
// belowZero(operations: [1, 2, -4, 5]) == true
func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
<|file_separator|>

func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
```swift
// You're given an array of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
// at that point function should return true. Otherwise it should return false.
// belowZero(operations: [1, 2, 3]) == false
// belowZero(operations: [1, 2, -4, 5]) == true
func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
<|file_separator|>

func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
```swift
// You're given an array of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
// at that point function should return true. Otherwise it should return false.
// belowZero(operations: [1, 2, 3]) == false
// belowZero(operations: [1, 2, -4, 5]) == true
func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
<|file_separator|>

func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
```swift
// You're given an array of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
// at that point function should return true. Otherwise it should return false.
// belowZero(operations: [1, 2, 3]) == false
// belowZero(operations: [1, 2, -4, 5]) == true
func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
<|file_separator|>```

func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
```swift
// You're given an array of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
// at that point function should return true. Otherwise it should return false.
// belowZero(operations: [1, 2, 3]) == false
// belowZero(operations: [1, 2, -4, 5]) == true
func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
<|file_separator|>

func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for i in operations {
        balance += i
        if balance < 0 {
            return true
        }
    }
    return false
}
```swift
// You're given an array of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
// at that point function should return true. Otherwise it should return false.
// belowZero(operations: [1, 2, 3]) == false
// belowZero(operations: [1, 2, -4, 5]) == true
func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for i in operations {
        balance += i
        if balance < 0 {
            return true
        }
    }
    return false
}
<|file_separator|>

func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
```swift
// You're given an array of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
// at that point function should return true. Otherwise it should return false.
// belowZero(operations: [1, 2, 3]) == false
// belowZero(operations: [1, 2, -4, 5]) == true
func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
<|file_separator|>

func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
```swift
// You're given an array of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
// at that point function should return true. Otherwise it should return false.
// belowZero(operations: [1, 2, 3]) == false
// belowZero(operations: [1, 2, -4, 5]) == true
func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
<|file_separator|>

func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
```swift
// You're given an array of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
// at that point function should return true. Otherwise it should return false.
// belowZero(operations: [1, 2, 3]) == false
// belowZero(operations: [1, 2, -4, 5]) == true
func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
<|file_separator|>

func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
```swift
// You're given an array of deposit and withdrawal operations on a bank account that starts with
// zero balance. Your task is to detect if at any point the balance of account fallls below zero, and
// at that point function should return true. Otherwise it should return false.
// belowZero(operations: [1, 2, 3]) == false
// belowZero(operations: [1, 2, -4, 5]) == true
func belowZero(operations: [Int]) -> Bool {
    var balance = 0
    for operation in operations {
        balance += operation
        if balance < 0 {
            return true
        }
    }
    return false
}
<|file_separator|>

func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let sortedNumbers = numbers.sorted()
    let median = sortedNumbers[sortedNumbers.count / 2]
    return sortedNumbers.map { abs($0 - median) }.sorted()[sortedNumbers.count / 2]
}
```swift
// For a given array of input numbers, calculate Mean Absolute Deviation
// around the mean of this dataset.
// Mean Absolute Deviation is the average absolute difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

// For a given array of input numbers, calculate the Median Absolute Deviation
// around the median of this dataset.
// Median Absolute Deviation is the median of the absolute difference between each
// element and a centerpoint (median in this case):
// MAD = median | x - median |
// medianAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let sortedNumbers = numbers.sorted()
    let median = sortedNumbers[sortedNumbers.count / 2]
    return sortedNumbers.map { abs($0 - median) }.sorted()[sortedNumbers.count / 2]
}

// For a given array of input numbers, calculate the Mean Absolute Deviation
// around the mean of this dataset.
// Mean Absolute Deviation is the average absolute difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

// For a given array of input numbers, calculate the Median Absolute Deviation
// around the median of this dataset.
// Median Absolute Deviation is the median of the absolute difference between each
// element and a centerpoint (median in this case):
// MAD = median | x - median |
// medianAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let sortedNumbers = numbers.sorted()
    let median = sortedNumbers[sortedNumbers.count / 2]
    return sortedNumbers.map { abs($0 - median) }.sorted()[sortedNumbers.count / 2]
}
<|file_separator|>

func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}
```swift
// For a given array of input numbers, calculate Mean Absolute Deviation
// around the mean of this dataset.
// Mean Absolute Deviation is the average absolute difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}
<|file_separator|>

func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

func median(numbers: [Double]) -> Double {
    let sorted = numbers.sorted()
    let count = sorted.count
    if count % 2 == 0 {
        return (sorted[count / 2 - 1] + sorted[count / 2]) / 2
    } else {
        return sorted[count / 2]
    }
}

func mode(numbers: [Double]) -> Double {
    let count = numbers.reduce(into: [:]) { counts, number in
        counts[number, default: 0] += 1
    }
    return count.max(by: { $0.value < $1.value })!.key
}

func range(numbers: [Double]) -> Double {
    return numbers.max()! - numbers.min()!
}

func variance(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { pow($0 - mean, 2) }.reduce(0, +) / Double(numbers.count)
}

func standardDeviation(numbers: [Double]) -> Double {
    return sqrt(variance(numbers: numbers))
}

func quartiles(numbers: [Double]) -> [Double] {
    let sorted = numbers.sorted()
    let count = sorted.count
    if count % 2 == 0 {
        return [
            (sorted[count / 2 - 1] + sorted[count / 2]) / 2,
            median(numbers: sorted[count / 2 ..< count]),
            (sorted[count / 2 + 1] + sorted[count / 2 + 1]) / 2,
        ]
    } else {
        return [median(numbers: sorted[count / 2 ..< count]), median(numbers: sorted[count / 2 ..< count + 1])]
    }
}

func interquartileRange(numbers: [Double]) -> Double {
    return quartiles(numbers: numbers).last! - quartiles(numbers: numbers).first!
}
```swift
// For a given array of input numbers, calculate Mean Absolute Deviation
// around the mean of this dataset.
// Mean Absolute Deviation is the average absolute difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

// For a given array of input numbers, calculate the median of this dataset.
// Median is the middle value of the sorted dataset.
// median(numbers: [1.0, 2.0, 3.0, 4.0]) == 2.5
func median(numbers: [Double]) -> Double {
    let sorted = numbers.sorted()
    let count = sorted.count
    if count % 2 == 0 {
        return (sorted[count / 2 - 1] + sorted[count / 2]) / 2
    } else {
        return sorted[count / 2]
    }
}

// For a given array of input numbers, calculate the mode of this dataset.
// Mode is the most frequently occurring value in the dataset.
// mode(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func mode(numbers: [Double]) -> Double {
    let count = numbers.reduce(into: [:]) { counts, number in
        counts[number, default: 0] += 1
    }
    return count.max(by: { $0.value < $1.value })!.key
}

// For a given array of input numbers, calculate the range of this dataset.
// Range is the difference between the largest and smallest values in the dataset.
// range(numbers: [1.0, 2.0, 3.0, 4.0]) == 3.0
func range(numbers: [Double]) -> Double {
    return numbers.max()! - numbers.min()!
}

// For a given array of input numbers, calculate the variance of this dataset.
// Variance is the average of the squared differences between each element and
// the mean of the dataset.
// variance(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func variance(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { pow($0 - mean, 2) }.reduce(0, +) / Double(numbers.count)
}

// For a given array of input numbers, calculate the standard deviation of this
// dataset.
// Standard deviation is the square root of the variance of the dataset.
// standardDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func standardDeviation(numbers: [Double]) -> Double {
    return sqrt(variance(numbers: numbers))
}

// For a given array of input numbers, calculate the quartiles of this dataset.
// Quartile is the median of the three middle values of the sorted dataset.
// quartiles(numbers: [1.0, 2.0, 3.0, 4.0]) == [1.5, 2.5, 3.5]
func quartiles(numbers: [Double]) -> [Double] {
    let sorted = numbers.sorted()
    let count = sorted.count
    if count % 2 == 0 {
        return [
            (sorted[count / 2 - 1] + sorted[count / 2]) / 2,
            median(numbers: sorted[count / 2 ..< count]),
            (sorted[count / 2 + 1] + sorted[count / 2 + 1]) / 2,
        ]
    } else {
        return [median(numbers: sorted[count / 2 ..< count]), median(numbers: sorted[count / 2 ..< count + 1])]
    }
}

// For a given array of input numbers, calculate the interquartile range of this
// dataset.
// Interquartile range is the difference between the quartiles of the dataset.
// interquartileRange(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.5
func interquartileRange(numbers: [Double]) -> Double {
    return quartiles(numbers: numbers).last! - quartiles(numbers: numbers).first!
}

// For a given array of input numbers, calculate the skewness of this dataset.
// Skewness is the average of the squared differences
median(numbers: sorted[count / 2 ..< count]), // cannot convert value of type 'ArraySlice<Double>' to expected argument type '[Double]'
return [median(numbers: sorted[count / 2 ..< count]), median(numbers: sorted[count / 2 ..< count + 1])] // cannot convert value of type 'ArraySlice<Double>' to expected argument type '[Double]'
return [median(numbers: sorted[count / 2 ..< count]), median(numbers: sorted[count / 2 ..< count + 1])] // cannot convert value of type 'ArraySlice<Double>' to expected argument type '[Double]'

func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let median = numbers.sorted()[numbers.count / 2]
    return numbers.map { abs($0 - median) }.sorted()[numbers.count / 2]
}
```swift
// For a given array of input numbers, calculate Mean Absolute Deviation
// around the mean of this dataset.
// Mean Absolute Deviation is the average absolute difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

// For a given array of input numbers, calculate the Median Absolute Deviation
// around the median of this dataset.
// Median Absolute Deviation is the median of the absolute difference between each
// element and a centerpoint (median in this case):
// MAD = median | x - median |
// medianAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let median = numbers.sorted()[numbers.count / 2]
    return numbers.map { abs($0 - median) }.sorted()[numbers.count / 2]
}

// For a given array of input numbers, calculate the Median Absolute Deviation
// around the median of this dataset.
// Median Absolute Deviation is the median of the absolute difference between each
// element and a centerpoint (median in this case):
// MAD = median | x - median |
// medianAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let median = numbers.sorted()[numbers.count / 2]
    return numbers.map { abs($0 - median) }.sorted()[numbers.count / 2]
}

// For a given array of input numbers, calculate the Median Absolute Deviation
// around the median of this dataset.
// Median Absolute Deviation is the median of the absolute difference between each
// element and a centerpoint (median in this case):
// MAD = median | x - median |
// medianAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let median = numbers.sorted()[numbers.count / 2]
    return numbers.map { abs($0 - median) }.sorted()[numbers.count / 2]
}

// For a given array of input numbers, calculate the Median Absolute Deviation
// around the median of this dataset.
// Median Absolute Deviation is the median of the absolute difference between each
// element and a centerpoint (median in this case):
// MAD = median | x - median |
// medianAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let median = numbers.sorted()[numbers.count / 2]
    return numbers.map { abs($0 - median) }.sorted()[numbers.count / 2]
}

// For a given array of input numbers, calculate the Median Absolute Deviation
// around the median of this dataset.
// Median Absolute Deviation is the median of the absolute difference between each
// element and a centerpoint (median in this case):
// MAD = median | x - median |
// medianAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let median = numbers.sorted()[numbers.count / 2]
    return numbers.map { abs($0 - median) }.sorted()[numbers.count / 2]
}

// For a given array of input numbers, calculate the Median Absolute Deviation
// around the median of this dataset.
// Median Absolute Deviation is the median of the absolute difference between each
// element and a centerpoint (median in this case):
// MAD = median | x - median |
// medianAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let median = numbers.sorted()[numbers.count / 2]
    return numbers.map { abs($0 - median) }.sorted()[numbers.count / 2]
}

// For a given array of input numbers, calculate the Median Absolute Deviation
// around the median of this dataset.
// Median Absolute Deviation is the median of the absolute difference between each
// element and a centerpoint (median in this case):
// MAD = median | x - median |
// medianAbsoluteDeviation(numbers: [1.0, 2.0, 3

func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}
```swift
// For a given array of input numbers, calculate Mean Absolute Deviation
// around the mean of this dataset.
// Mean Absolute Deviation is the average absolute difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}
<|file_separator|>

func meanAbsoluteDeviation(numbers: [Double]) -> Double {
  let mean = numbers.reduce(0, +) / Double(numbers.count)
  return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}
```swift
// For a given array of input numbers, calculate Mean Absolute Deviation
// around the mean of this dataset.
// Mean Absolute Deviation is the average absolute difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanAbsoluteDeviation(numbers: [Double]) -> Double {
  let mean = numbers.reduce(0, +) / Double(numbers.count)
  return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}
<|file_separator|>

func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let median = numbers.sorted()[numbers.count / 2]
    return numbers.map { abs($0 - median) }.reduce(0, +) / Double(numbers.count)
}

func meanSquaredDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { pow($0 - mean, 2) }.reduce(0, +) / Double(numbers.count)
}

func medianSquaredDeviation(numbers: [Double]) -> Double {
    let median = numbers.sorted()[numbers.count / 2]
    return numbers.map { pow($0 - median, 2) }.reduce(0, +) / Double(numbers.count)
}
```swift
// For a given array of input numbers, calculate Mean Absolute Deviation
// around the mean of this dataset.
// Mean Absolute Deviation is the average absolute difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

// For a given array of input numbers, calculate the Median Absolute Deviation
// around the median of this dataset.
// Median Absolute Deviation is the average absolute difference between each
// element and a centerpoint (median in this case):
// MAD = average | x - x_median |
// medianAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let median = numbers.sorted()[numbers.count / 2]
    return numbers.map { abs($0 - median) }.reduce(0, +) / Double(numbers.count)
}

// For a given array of input numbers, calculate the Mean Squared Deviation
// around the mean of this dataset.
// Mean Squared Deviation is the average squared difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanSquaredDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanSquaredDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { pow($0 - mean, 2) }.reduce(0, +) / Double(numbers.count)
}

// For a given array of input numbers, calculate the Median Squared Deviation
// around the median of this dataset.
// Median Squared Deviation is the average squared difference between each
// element and a centerpoint (median in this case):
// MAD = average | x - x_median |
// medianSquaredDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func medianSquaredDeviation(numbers: [Double]) -> Double {
    let median = numbers.sorted()[numbers.count / 2]
    return numbers.map { pow($0 - median, 2) }.reduce(0, +) / Double(numbers.count)
}
<|file_separator|>

func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}
```swift
// For a given array of input numbers, calculate Mean Absolute Deviation
// around the mean of this dataset.
// Mean Absolute Deviation is the average absolute difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}
<|file_separator|>

func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let sortedNumbers = numbers.sorted()
    let median = sortedNumbers[sortedNumbers.count / 2]
    return sortedNumbers.map { abs($0 - median) }.reduce(0, +) / Double(sortedNumbers.count)
}
```swift
// For a given array of input numbers, calculate Mean Absolute Deviation
// around the mean of this dataset.
// Mean Absolute Deviation is the average absolute difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

// For a given array of input numbers, calculate Median Absolute Deviation
// around the median of this dataset.
// Median Absolute Deviation is the average absolute difference between each
// element and a centerpoint (median in this case):
// MAD = average | x - x_median |
// medianAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func medianAbsoluteDeviation(numbers: [Double]) -> Double {
    let sortedNumbers = numbers.sorted()
    let median = sortedNumbers[sortedNumbers.count / 2]
    return sortedNumbers.map { abs($0 - median) }.reduce(0, +) / Double(sortedNumbers.count)
}
<|file_separator|>

func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

func median(numbers: [Double]) -> Double {
    let sorted = numbers.sorted()
    let count = sorted.count
    if count % 2 == 1 {
        return sorted[count / 2]
    }
    return (sorted[count / 2 - 1] + sorted[count / 2]) / 2
}

func mode(numbers: [Double]) -> Double {
    let sorted = numbers.sorted()
    var mode = sorted[0]
    var count = 0
    for i in 0..<sorted.count {
        if sorted[i] == mode {
            count += 1
        } else {
            if count > sorted.count / 2 {
                return mode
            }
            mode = sorted[i]
            count = 1
        }
    }
    return mode
}

func range(numbers: [Double]) -> Double {
    let sorted = numbers.sorted()
    return sorted.last! - sorted.first!
}

func variance(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { pow($0 - mean, 2) }.reduce(0, +) / Double(numbers.count)
}

func standardDeviation(numbers: [Double]) -> Double {
    return sqrt(variance(numbers: numbers))
}

func quartiles(numbers: [Double]) -> [Double] {
    let sorted = numbers.sorted()
    let count = sorted.count
    if count % 2 == 1 {
        return [sorted[count / 2 - 1], sorted[count / 2], sorted[count / 2 + 1]]
    }
    return [sorted[count / 2 - 1], sorted[count / 2], sorted[count / 2 + 1]]
}
```swift
// For a given array of input numbers, calculate Mean Absolute Deviation
// around the mean of this dataset.
// Mean Absolute Deviation is the average absolute difference between each
// element and a centerpoint (mean in this case):
// MAD = average | x - x_mean |
// meanAbsoluteDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func meanAbsoluteDeviation(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { abs($0 - mean) }.reduce(0, +) / Double(numbers.count)
}

// For a given array of input numbers, calculate the median of this dataset.
// Median is the middle value in a sorted list of numbers.
// median(numbers: [1.0, 2.0, 3.0, 4.0]) == 2.5
func median(numbers: [Double]) -> Double {
    let sorted = numbers.sorted()
    let count = sorted.count
    if count % 2 == 1 {
        return sorted[count / 2]
    }
    return (sorted[count / 2 - 1] + sorted[count / 2]) / 2
}

// For a given array of input numbers, calculate the mode of this dataset.
// Mode is the most common value in a sorted list of numbers.
// mode(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func mode(numbers: [Double]) -> Double {
    let sorted = numbers.sorted()
    var mode = sorted[0]
    var count = 0
    for i in 0..<sorted.count {
        if sorted[i] == mode {
            count += 1
        } else {
            if count > sorted.count / 2 {
                return mode
            }
            mode = sorted[i]
            count = 1
        }
    }
    return mode
}

// For a given array of input numbers, calculate the range of this dataset.
// Range is the difference between the highest and lowest values in a sorted list of numbers.
// range(numbers: [1.0, 2.0, 3.0, 4.0]) == 3.0
func range(numbers: [Double]) -> Double {
    let sorted = numbers.sorted()
    return sorted.last! - sorted.first!
}

// For a given array of input numbers, calculate the variance of this dataset.
// Variance is the average of the squared differences between each element and a centerpoint (mean in this case).
// variance(numbers: [1.0, 2.0, 3.0, 4.0]) == 0.25
func variance(numbers: [Double]) -> Double {
    let mean = numbers.reduce(0, +) / Double(numbers.count)
    return numbers.map { pow($0 - mean, 2) }.reduce(0, +) / Double(numbers.count)
}

// For a given array of input numbers, calculate the standard deviation of this dataset.
// Standard deviation is the square root of the variance.
// standardDeviation(numbers: [1.0, 2.0, 3.0, 4.0]) == 0.816496580927736
func standardDeviation(numbers: [Double]) -> Double {
    return sqrt(variance(numbers: numbers))
}

// For a given array of input numbers, calculate the quartiles of this dataset.
// Quartile is the median of the first half of the sorted list of numbers.
// quartiles(numbers: [1.0, 2.0, 3.0, 4.0]) == [1.0, 2.5, 3.0, 3.5]
func quartiles(numbers: [Double]) -> [Double] {
    let sorted = numbers.sorted()
    let count = sorted.count
    if count % 2 == 1 {
        return [sorted[count / 2 - 1], sorted[count / 2], sorted[count / 2 + 1]]
    }
    return [sorted[count / 2 - 1], sorted[count / 2], sorted[count / 2 + 1]]
}

// For a given array of input numbers, calculate the interquartile range of this dataset.
// Interquartile range is the difference between the highest and lowest values in the first half of the sorted list of numbers.
// interquartileRange(numbers: [1.0, 2.0, 3.0, 4.0]) == 1.0
func interquartileRange(numbers: [Double]) -> Double {
    let sorted = numbers.sorted()
    let count = sorted.count
    if count % 2 == 1 {
        

func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for (index, number) in numbers.enumerated() {
        result.append(number)
        if index < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
```swift
// Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// intersperse(numbers: [] as [Int], delimeter: 4) == [] as [Int]
// intersperse(numbers: [1, 2, 3], delimeter: 4) == [1, 4, 2, 4, 3]
func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for (index, number) in numbers.enumerated() {
        result.append(number)
        if index < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}

// Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// intersperse(numbers: [] as [Int], delimeter: 4) == [] as [Int]
// intersperse(numbers: [1, 2, 3], delimeter: 4) == [1, 4, 2, 4, 3]
func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for (index, number) in numbers.enumerated() {
        result.append(number)
        if index < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
<|file_separator|>

func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for i in 0..<numbers.count {
        result.append(numbers[i])
        if i < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
```swift
// Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// intersperse(numbers: [] as [Int], delimeter: 4) == [] as [Int]
// intersperse(numbers: [1, 2, 3], delimeter: 4) == [1, 4, 2, 4, 3]
func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for i in 0..<numbers.count {
        result.append(numbers[i])
        if i < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
<|file_separator|>

func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for i in 0..<numbers.count {
        if i == 0 {
            result.append(numbers[i])
        } else {
            result.append(numbers[i])
            result.append(delimeter)
        }
    }
    return result
}
```swift
// Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// intersperse(numbers: [] as [Int], delimeter: 4) == [] as [Int]
// intersperse(numbers: [1, 2, 3], delimeter: 4) == [1, 4, 2, 4, 3]
func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for i in 0..<numbers.count {
        if i == 0 {
            result.append(numbers[i])
        } else {
            result.append(numbers[i])
            result.append(delimeter)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for (index, number) in numbers.enumerated() {
        result.append(number)
        if index < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
```swift
// Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// intersperse(numbers: [] as [Int], delimeter: 4) == [] as [Int]
// intersperse(numbers: [1, 2, 3], delimeter: 4) == [1, 4, 2, 4, 3]
func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for (index, number) in numbers.enumerated() {
        result.append(number)
        if index < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
<|file_separator|>

func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for i in 0..<numbers.count {
        result.append(numbers[i])
        if i < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
```swift
// Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// intersperse(numbers: [] as [Int], delimeter: 4) == [] as [Int]
// intersperse(numbers: [1, 2, 3], delimeter: 4) == [1, 4, 2, 4, 3]
func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for i in 0..<numbers.count {
        result.append(numbers[i])
        if i < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
<|file_separator|>

func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for (index, number) in numbers.enumerated() {
        result.append(number)
        if index < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
```swift
// Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// intersperse(numbers: [] as [Int], delimeter: 4) == [] as [Int]
// intersperse(numbers: [1, 2, 3], delimeter: 4) == [1, 4, 2, 4, 3]
func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for (index, number) in numbers.enumerated() {
        result.append(number)
        if index < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
<|file_separator|>

func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for (index, number) in numbers.enumerated() {
        result.append(number)
        if index < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
```swift
// Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// intersperse(numbers: [] as [Int], delimeter: 4) == [] as [Int]
// intersperse(numbers: [1, 2, 3], delimeter: 4) == [1, 4, 2, 4, 3]
func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for (index, number) in numbers.enumerated() {
        result.append(number)
        if index < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
<|file_separator|>

func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for i in 0..<numbers.count {
        result.append(numbers[i])
        if i < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
```swift
// Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// intersperse(numbers: [] as [Int], delimeter: 4) == [] as [Int]
// intersperse(numbers: [1, 2, 3], delimeter: 4) == [1, 4, 2, 4, 3]
func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for i in 0..<numbers.count {
        result.append(numbers[i])
        if i < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
<|file_separator|>

func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for (index, number) in numbers.enumerated() {
        result.append(number)
        if index < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
```swift
// Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// intersperse(numbers: [] as [Int], delimeter: 4) == [] as [Int]
// intersperse(numbers: [1, 2, 3], delimeter: 4) == [1, 4, 2, 4, 3]
func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for (index, number) in numbers.enumerated() {
        result.append(number)
        if index < numbers.count - 1 {
            result.append(delimeter)
        }
    }
    return result
}
<|file_separator|>

func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for i in 0..<numbers.count {
        if i == 0 {
            result.append(numbers[i])
        } else {
            result.append(numbers[i])
            result.append(delimeter)
        }
    }
    return result
}
```swift
// Insert a number 'delimeter' between every two consecutive elements of input array `numbers'
// intersperse(numbers: [] as [Int], delimeter: 4) == [] as [Int]
// intersperse(numbers: [1, 2, 3], delimeter: 4) == [1, 4, 2, 4, 3]
func intersperse(numbers: [Int], delimeter: Int) -> [Int] {
    var result = [Int]()
    for i in 0..<numbers.count {
        if i == 0 {
            result.append(numbers[i])
        } else {
            result.append(numbers[i])
            result.append(delimeter)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var currentLevel = 0
    var currentParen = 0
    var parenStack = [Int]()
    for paren in parenString.characters {
        if paren == "(" {
            parenStack.append(currentLevel)
            currentLevel += 1
        } else if paren == ")" {
            currentLevel = parenStack.popLast() ?? 0
            currentParen += 1
        }
    }
    result = Array(repeating: currentParen, count: currentLevel)
    return result
}
```swift
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var currentLevel = 0
    var currentParen = 0
    var parenStack = [Int]()
    for paren in parenString.characters {
        if paren == "(" {
            parenStack.append(currentLevel)
            currentLevel += 1
        } else if paren == ")" {
            currentLevel = parenStack.popLast() ?? 0
            currentParen += 1
        }
    }
    result = Array(repeating: currentParen, count: currentLevel)
    return result
}
<|file_separator|>
for paren in parenString.characters { // 'characters' is unavailable: Please use String directly

func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var maxLevel = 0
    var level = 0
    
    for paren in parenString.characters {
        if paren == "(" {
            stack.append(level)
            level += 1
            maxLevel = max(maxLevel, level)
        } else if paren == ")" {
            level = stack.removeLast()
        }
    }
    
    return Array(repeating: maxLevel, count: stack.count)
}
```swift
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var maxLevel = 0
    var level = 0
    
    for paren in parenString.characters {
        if paren == "(" {
            stack.append(level)
            level += 1
            maxLevel = max(maxLevel, level)
        } else if paren == ")" {
            level = stack.removeLast()
        }
    }
    
    return Array(repeating: maxLevel, count: stack.count)
}
<|file_separator|>
var result = [Int]() // initialization of variable 'result' was never used; consider replacing with assignment to '_' or removing it
for paren in parenString.characters { // 'characters' is unavailable: Please use String directly

func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.characters {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    result = stack
    return result
}
```swift
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.characters {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    result = stack
    return result
}

print(parseNestedParens(parenString: "(()()) ((())) () ((())()())"))
<|file_separator|>
for paren in parenString.characters { // 'characters' is unavailable: Please use String directly

func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var currentLevel = 0
    var currentGroup = ""
    var currentGroupLevel = 0
    
    for char in parenString {
        if char == "(" {
            currentLevel += 1
            currentGroup += "("
            currentGroupLevel = currentLevel
        } else if char == ")" {
            currentLevel -= 1
            currentGroup += ")"
            if currentLevel == currentGroupLevel {
                result.append(currentGroupLevel)
                currentGroup = ""
                currentGroupLevel = 0
            }
        }
    }
    
    return result
}
```swift
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var currentLevel = 0
    var currentGroup = ""
    var currentGroupLevel = 0
    
    for char in parenString {
        if char == "(" {
            currentLevel += 1
            currentGroup += "("
            currentGroupLevel = currentLevel
        } else if char == ")" {
            currentLevel -= 1
            currentGroup += ")"
            if currentLevel == currentGroupLevel {
                result.append(currentGroupLevel)
                currentGroup = ""
                currentGroupLevel = 0
            }
        }
    }
    
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}
```swift
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}

// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}

// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}

// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}

// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}

// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in paren
var result = [Int]() // initialization of variable 'result' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var level = 0
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            level += 1
            parenCount += 1
        } else if char == ")" {
            if parenCount > 0 {
                level -= 1
                parenCount -= 1
            }
        }
        result.append(level)
    }
    return result
}
```swift
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var level = 0
    var parenCount = 0
    for char in parenString {
        if char == "(" {
            level += 1
            parenCount += 1
        } else if char == ")" {
            if parenCount > 0 {
                level -= 1
                parenCount -= 1
            }
        }
        result.append(level)
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            if stack.count > 0 {
                level = stack.removeLast()
            }
        }
        result.append(level)
    }
    return result
}
```swift
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            if stack.count > 0 {
                level = stack.removeLast()
            }
        }
        result.append(level)
    }
    return result
}

// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            if stack.count > 0 {
                level = stack.removeLast()
            }
        }
        result.append(level)
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func parseNestedParens(parenString: String) -> [Int] {
    // Write your code here
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for char in parenString {
        if char == "(" {
            level += 1
            stack.append(level)
        } else if char == ")" {
            level = stack.popLast() ?? 0
        }
    }
    result = stack
    return result
}
```swift
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    // Write your code here
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for char in parenString {
        if char == "(" {
            level += 1
            stack.append(level)
        } else if char == ")" {
            level = stack.popLast() ?? 0
        }
    }
    result = stack
    return result
}

print(parseNestedParens(parenString: "(()()) ((())) () ((())()())"))
<|file_separator|>
 // XCTAssertTrue failed

func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.characters {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    result = stack
    return result
}
```swift
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.characters {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    result = stack
    return result
}
<|file_separator|>
for paren in parenString.characters { // 'characters' is unavailable: Please use String directly

func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}
```swift
// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}

// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}

// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}

// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}

// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in parenString.split(separator: " ") {
        if paren == "(" {
            level += 1
            stack.append(level)
        } else if paren == ")" {
            level = stack.popLast() ?? 0
        }
    }
    return stack
}

// Input to this function is a string represented multiple groups for nested parentheses separated by spaces.
// For each of the group, output the deepest level of nesting of parentheses.
// E.g. (()()) has maximum two levels of nesting while ((())) has three.
// parseNestedParens(parenString: "(()()) ((())) () ((())()())") == [2, 3, 1, 3]
func parseNestedParens(parenString: String) -> [Int] {
    var result = [Int]()
    var stack = [Int]()
    var level = 0
    for paren in paren
var result = [Int]() // initialization of variable 'result' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
```swift
// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
<|file_separator|>

func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
```swift
// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
<|file_separator|>

func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
```swift
// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter {

func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
```swift
// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
<|file_separator|>

func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
```swift
// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter {

func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
```swift
// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter {

func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
```swift
// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
<|file_separator|>

func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
```swift
// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}

// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter {

func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
```swift
// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
<|file_separator|>

func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
```swift
// Filter an input array of strings only for ones that contain given substring
// filterBySubstring(strings: [] as [String], substring: "a") == [] as [String]
// filterBySubstring(strings: ["abc", "bacd", "cde", "array"], substring: "a") == ["abc", "bacd", "array"]
func filterBySubstring(strings: [String], substring: String) -> [String] {
    return strings.filter { $0.contains(substring) }
}
<|file_separator|>

func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
```swift
// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
<|file_separator|>

func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
```swift
// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
<|file_separator|>

func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
```swift
// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
<|file_separator|>

func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
```swift
// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sum

func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
```swift
// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}

// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sum

func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
```swift
// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
<|file_separator|>

func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
```swift
// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
<|file_separator|>

func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
```swift
// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
<|file_separator|>

func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
```swift
// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for number in numbers {
        sum += number
        product *= number
    }
    return (sum, product)
}
<|file_separator|>

func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for i in numbers {
        sum += i
        product *= i
    }
    return (sum, product)
}

func swapEnds(str: String) -> String {
    if str.count < 2 {
        return str
    }
    if str.first == str.last {
        return str
    }
    return String(str.last) + String(str.dropFirst().dropLast()) + String(str.first)
}

func front22(str: String) -> String {
    if str.count < 2 {
        return str
    }
    if str.first == "o" {
        return "o" + str.dropFirst()
    }
    if str.last == "z" {
        return str.dropLast() + "z"
    }
    return str
}

func middleThree(str: String) -> String {
    if str.count < 3 {
        return str
    }
    return String(str.dropFirst().dropLast().dropLast().dropFirst())
}
```swift
// For a given array of integers, return a tuple consisting of a sum and a product of all the integers in an array.
// Empty sum should be equal to 0 and empty product should be equal to 1.
// sumProduct(numbers: [] as [Int]) == (0, 1)
// sumProduct(numbers: [1, 2, 3, 4]) == (10, 24)
func sumProduct(numbers: [Int]) -> (Int, Int) {
    var sum = 0
    var product = 1
    for i in numbers {
        sum += i
        product *= i
    }
    return (sum, product)
}

// Given a string, return a new string with the first and last chars swapped, except under two conditions:
// If the length of the string is less than 2, return the string unchanged.
// If the first and last chars are the same, return the string unchanged.
// swapEnds("code") == "eodc"
// swapEnds("a") == "a"
// swapEnds("ab") == "ba"
func swapEnds(str: String) -> String {
    if str.count < 2 {
        return str
    }
    if str.first == str.last {
        return str
    }
    return String(str.last) + String(str.dropFirst().dropLast()) + String(str.first)
}

// Given a string, return a string made of the first 2 chars (if present), however include first char only if it is 'o' and include the second only if it is 'z', so "ozymandias" yields "oz".
// front22("ozymandias") == "ozzy"
// front22("b") == "bb"
// front22("of") == "of"
func front22(str: String) -> String {
    if str.count < 2 {
        return str
    }
    if str.first == "o" {
        return "o" + str.dropFirst()
    }
    if str.last == "z" {
        return str.dropLast() + "z"
    }
    return str
}

// Given a string, return a string made of the middle three chars of a string. If the length is less than three, use whatever chars are there.
// middleThree("Catron") == "tel"
// middleThree("Chocolate") == "cho"
// middleThree("Candy") == "and"
func middleThree(str: String) -> String {
    if str.count < 3 {
        return str
    }
    return String(str.dropFirst().dropLast().dropLast().dropFirst())
}

// Given a string, return a string made of the first 2 chars (if present), however include first char only if it is 'o' and include the second only if it is 'z', so "ozymandias" yields "oz".
// front22("ozymandias") == "ozzy"
// front22("b") == "bb"
// front22("of") == "of"
func front22(str: String) -> String {
    if str.count < 2 {
        return str
    }
    if str.first == "o" {
        return "o" + str.dropFirst()
    }
    if str.last == "z" {
        return str.dropLast() + "z"
    }
    return str
}

// Given a string, return a string made of the middle three chars (if present), however include first char only if it is 'o' and include the second only if it is 'z', so "ozymandias" yields "tel".
// middleThree("Catron") == "tel"
// middleThree("Chocolate") == "cho"
// middleThree("Candy") == "and"
func middleThree(str: String) -> String {
    if str.count < 3 {
        return str
    }
    return String(str.dropFirst().dropLast().dropLast().dropFirst())
}

// Given a string, return a string made of the middle three chars (if present), however include first char only if it is 'o' and include the second only if it is 'z', so "ozymandias" yields "tel".
// middleThree("Catron") == "tel"
// middleThree("Chocolate") == "cho"
// middleThree("Candy") == "and"
func middleThree(str: String) -> String {
    if str.count < 3 {
        return str
    }
    return String(str.dropFirst().dropLast().dropLast().dropFirst())
}

// Given a string, return a string made of the middle three chars (if present), however include first char only if it is 'o' and include the second only if it is 'z', so "ozymandias" yields "tel".
// middleThree("Catron")
return String(str.last) + String(str.dropFirst().dropLast()) + String(str.first) // no exact matches in call to initializer
return String(str.last) + String(str.dropFirst().dropLast()) + String(str.first) // no exact matches in call to initializer

func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = numbers[0]
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}

func rollingMin(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var min = numbers[0]
    for number in numbers {
        if number < min {
            min = number
        }
        result.append(min)
    }
    return result
}

func rollingAvg(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0.0
    var count = 0
    for number in numbers {
        sum += Double(number)
        count += 1
        result.append(sum / Double(count))
    }
    return result
}

func rollingMedian(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sorted = numbers.sorted()
    for i in 0..<numbers.count {
        if i == 0 {
            result.append(Double(sorted[i]))
        } else if i == numbers.count - 1 {
            result.append(Double(sorted[i]))
        } else {
            result.append(Double(sorted[i - 1] + sorted[i + 1]) / 2)
        }
    }
    return result
}

func rollingStdDev(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0.0
    var count = 0
    for number in numbers {
        sum += Double(number)
        count += 1
    }
    var mean = sum / Double(count)
    for number in numbers {
        result.append(Double(number) - mean)
    }
    var variance = 0.0
    for number in result {
        variance += number * number
    }
    variance /= Double(count)
    result = result.map { sqrt($0 * $0 / variance) }
    return result
}
```swift
// From a given array of integers, generate an array of rolling maximum element found until given moment
// in the sequence.
// rollingMax(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 3, 3, 3, 4, 4]
func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = numbers[0]
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}

// From a given array of integers, generate an array of rolling minimum element found until given moment
// in the sequence.
// rollingMin(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 1, 1, 2, 2, 2, 2]
func rollingMin(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var min = numbers[0]
    for number in numbers {
        if number < min {
            min = number
        }
        result.append(min)
    }
    return result
}

// From a given array of integers, generate an array of rolling average element found until given moment
// in the sequence.
// rollingAvg(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 1.5, 2, 2.5, 3, 3.5, 4]
func rollingAvg(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0.0
    var count = 0
    for number in numbers {
        sum += Double(number)
        count += 1
        result.append(sum / Double(count))
    }
    return result
}

// From a given array of integers, generate an array of rolling median element found until given moment
// in the sequence.
// rollingMedian(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 2.5, 3, 3.5, 4, 4]
func rollingMedian(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sorted = numbers.sorted()
    for i in 0..<numbers.count {
        if i == 0 {
            result.append(Double(sorted[i]))
        } else if i == numbers.count - 1 {
            result.append(Double(sorted[i]))
        } else {
            result.append(Double(sorted[i - 1] + sorted[i + 1]) / 2)
        }
    }
    return result
}

// From a given array of integers, generate an array of rolling standard deviation element found until given moment
// in the sequence.
// rollingStdDev(numbers: [1, 2, 3, 2, 3, 4, 2]) == [0, 0.816496580927726, 1.0, 1.1547005383792513, 1.2449719904037848, 1.2874010519681992, 1.2980061983999999]
func rollingStdDev(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0.0
    var count = 0
    for number in numbers {
        sum += Double(number)
        count += 1
    }
    var mean = sum / Double(count)
    for number in numbers {
        result.append(Double(number) - mean)
    }
    var variance = 0.0
    for number in result {
        variance += number * number
    }
    variance /= Double(count)
    result = result.map { sqrt($0 * $0 / variance) }
    return result
}

// From a given array of integers, generate an array of rolling variance element found until given moment
// in the sequence.
// rollingVariance(numbers: [1, 2, 3, 2, 3, 4, 2]) == [0, 1, 1, 1, 1, 1, 1]
func rollingVariance(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0.0
    var count = 0
    for number in numbers {
        
var sorted = numbers.sorted() // variable 'sorted' was never mutated; consider changing to 'let' constant
var mean = sum / Double(count) // variable 'mean' was never mutated; consider changing to 'let' constant
 // Fatal error: Index out of range

func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = 0
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}
```swift
// From a given array of integers, generate an array of rolling maximum element found until given moment
// in the sequence.
// rollingMax(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 3, 3, 3, 4, 4]
func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = 0
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}
<|file_separator|>

func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = Int.min
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}
```swift
// From a given array of integers, generate an array of rolling maximum element found until given moment
// in the sequence.
// rollingMax(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 3, 3, 3, 4, 4]
func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = Int.min
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}
<|file_separator|>

func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = 0
    for i in 0..<numbers.count {
        if numbers[i] > max {
            max = numbers[i]
        }
        result.append(max)
    }
    return result
}
```swift
// From a given array of integers, generate an array of rolling maximum element found until given moment
// in the sequence.
// rollingMax(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 3, 3, 3, 4, 4]
func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = 0
    for i in 0..<numbers.count {
        if numbers[i] > max {
            max = numbers[i]
        }
        result.append(max)
    }
    return result
}

print(rollingMax(numbers: [1, 2, 3, 2, 3, 4, 2]))
<|file_separator|>

func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = numbers[0]
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}

func rollingMin(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var min = numbers[0]
    for number in numbers {
        if number < min {
            min = number
        }
        result.append(min)
    }
    return result
}

func rollingAvg(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0.0
    var count = 0
    for number in numbers {
        sum += Double(number)
        count += 1
        result.append(sum / Double(count))
    }
    return result
}

func rollingMedian(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sorted = numbers.sorted()
    for number in numbers {
        let index = sorted.index(of: number)!
        let left = sorted[0..<index]
        let right = sorted[index+1..<sorted.count]
        if left.count % 2 == 0 {
            result.append((Double(left.count) + Double(right.count)) / 2.0)
        } else {
            result.append(Double(left.count))
        }
    }
    return result
}

func rollingStdDev(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0.0
    var count = 0
    for number in numbers {
        sum += Double(number)
        count += 1
        result.append(Double(count) / Double(count) * sum / Double(count) - sum / Double(count))
    }
    return result
}

func rollingVariance(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0.0
    var count = 0
    for number in numbers {
        sum += Double(number)
        count += 1
        result.append(Double(count) / Double(count) * sum / Double(count) - sum / Double(count))
    }
    return result
}
```swift
// From a given array of integers, generate an array of rolling maximum element found until given moment
// in the sequence.
// rollingMax(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 3, 3, 3, 4, 4]
func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = numbers[0]
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}

// From a given array of integers, generate an array of rolling minimum element found until given moment
// in the sequence.
// rollingMin(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 1, 1, 2, 2, 2, 2]
func rollingMin(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var min = numbers[0]
    for number in numbers {
        if number < min {
            min = number
        }
        result.append(min)
    }
    return result
}

// From a given array of integers, generate an array of rolling average element found until given moment
// in the sequence.
// rollingAvg(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 1.5, 2, 2.5, 3, 3.5, 4]
func rollingAvg(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0.0
    var count = 0
    for number in numbers {
        sum += Double(number)
        count += 1
        result.append(sum / Double(count))
    }
    return result
}

// From a given array of integers, generate an array of rolling median element found until given moment
// in the sequence.
// rollingMedian(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 2.5, 2.5, 3, 3, 3]
func rollingMedian(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sorted = numbers.sorted()
    for number in numbers {
        let index = sorted.index(of: number)!
        let left = sorted[0..<index]
        let right = sorted[index+1..<sorted.count]
        if left.count % 2 == 0 {
            result.append((Double(left.count) + Double(right.count)) / 2.0)
        } else {
            result.append(Double(left.count))
        }
    }
    return result
}

// From a given array of integers, generate an array of rolling standard deviation element found until given moment
// in the sequence.
// rollingStdDev(numbers: [1, 2, 3, 2, 3, 4, 2]) == [0.0, 0.816496580927726, 1.0, 1.0, 1.0, 1.0, 1.0]
func rollingStdDev(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0.0
    var count = 0
    for number in numbers {
        sum += Double(number)
        count += 1
        result.append(Double(count) / Double(count) * sum / Double(count) - sum / Double(count))
    }
    return result
}

// From a given array of integers, generate an array of rolling variance element found until given moment
// in the sequence.
// rollingVariance(numbers: [1, 2, 3, 2, 3, 4, 2]) == [0.0, 0.8333333333333334, 1.0, 1.0, 1.0, 1.0, 1.0]
func rollingVariance(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0.0
    var count = 0
    for number in numbers {
        sum += Double(number)
        count += 1
        result.append(Double(count) / Double(count) * sum / Double(count) - sum / Double(count))
    }
    return result
}

// From a given array of integers, generate an array of rolling standard deviation element found until given moment
// in the
var sorted = numbers.sorted() // variable 'sorted' was never mutated; consider changing to 'let' constant
let index = sorted.index(of: number)! // 'index(of:)' is deprecated: renamed to 'firstIndex(of:)'
 // Fatal error: Index out of range

func rollingMax(numbers: [Int]) -> [Int] {
    var rollingMax: [Int] = []
    var max = numbers[0]
    for number in numbers {
        if number > max {
            max = number
        }
        rollingMax.append(max)
    }
    return rollingMax
}

func rollingMin(numbers: [Int]) -> [Int] {
    var rollingMin: [Int] = []
    var min = numbers[0]
    for number in numbers {
        if number < min {
            min = number
        }
        rollingMin.append(min)
    }
    return rollingMin
}

func rollingAvg(numbers: [Int]) -> [Double] {
    var rollingAvg: [Double] = []
    var sum = 0
    for number in numbers {
        sum += number
        rollingAvg.append(Double(sum) / Double(numbers.count))
    }
    return rollingAvg
}

func rollingSum(numbers: [Int]) -> [Int] {
    var rollingSum: [Int] = []
    var sum = 0
    for number in numbers {
        sum += number
        rollingSum.append(sum)
    }
    return rollingSum
}

func rollingMedian(numbers: [Int]) -> [Double] {
    var rollingMedian: [Double] = []
    var median = 0
    for number in numbers {
        median = (median + number) / 2
        rollingMedian.append(Double(median))
    }
    return rollingMedian
}

func rollingProduct(numbers: [Int]) -> [Int] {
    var rollingProduct: [Int] = []
    var product = 1
    for number in numbers {
        product *= number
        rollingProduct.append(product)
    }
    return rollingProduct
}
```swift
// From a given array of integers, generate an array of rolling maximum element found until given moment
// in the sequence.
// rollingMax(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 3, 3, 3, 4, 4]
func rollingMax(numbers: [Int]) -> [Int] {
    var rollingMax: [Int] = []
    var max = numbers[0]
    for number in numbers {
        if number > max {
            max = number
        }
        rollingMax.append(max)
    }
    return rollingMax
}

// From a given array of integers, generate an array of rolling minimum element found until given moment
// in the sequence.
// rollingMin(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 1, 1, 2, 2, 2, 2]
func rollingMin(numbers: [Int]) -> [Int] {
    var rollingMin: [Int] = []
    var min = numbers[0]
    for number in numbers {
        if number < min {
            min = number
        }
        rollingMin.append(min)
    }
    return rollingMin
}

// From a given array of integers, generate an array of rolling average element found until given moment
// in the sequence.
// rollingAvg(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 1.5, 2, 2.5, 3, 3.5, 4]
func rollingAvg(numbers: [Int]) -> [Double] {
    var rollingAvg: [Double] = []
    var sum = 0
    for number in numbers {
        sum += number
        rollingAvg.append(Double(sum) / Double(numbers.count))
    }
    return rollingAvg
}

// From a given array of integers, generate an array of rolling sum element found until given moment
// in the sequence.
// rollingSum(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 3, 6, 9, 12, 15, 18]
func rollingSum(numbers: [Int]) -> [Int] {
    var rollingSum: [Int] = []
    var sum = 0
    for number in numbers {
        sum += number
        rollingSum.append(sum)
    }
    return rollingSum
}

// From a given array of integers, generate an array of rolling median element found until given moment
// in the sequence.
// rollingMedian(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 2, 2, 3, 3, 3]
func rollingMedian(numbers: [Int]) -> [Double] {
    var rollingMedian: [Double] = []
    var median = 0
    for number in numbers {
        median = (median + number) / 2
        rollingMedian.append(Double(median))
    }
    return rollingMedian
}

// From a given array of integers, generate an array of rolling product element found until given moment
// in the sequence.
// rollingProduct(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 6, 12, 24, 48, 96]
func rollingProduct(numbers: [Int]) -> [Int] {
    var rollingProduct: [Int] = []
    var product = 1
    for number in numbers {
        product *= number
        rollingProduct.append(product)
    }
    return rollingProduct
}

// From a given array of integers, generate an array of rolling sum element found until given moment
// in the sequence.
// rollingSum(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 3, 6, 9, 12, 15, 18]
func rollingSum(numbers: [Int]) -> [Int] {
    var rollingSum: [Int] = []
    var sum = 0
    for number in numbers {
        sum += number
        rollingSum.append(sum)
    }
    return rollingSum
}

// From a given array of integers, generate an array of rolling product element found until given moment
// in the sequence.
// rollingProduct(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 6, 12, 24, 48, 
 // Fatal error: Index out of range

func rollingMax(numbers: [Int]) -> [Int] {
  var result: [Int] = []
  var max = numbers[0]
  for number in numbers {
    if number > max {
      max = number
    }
    result.append(max)
  }
  return result
}

func rollingMin(numbers: [Int]) -> [Int] {
  var result: [Int] = []
  var min = numbers[0]
  for number in numbers {
    if number < min {
      min = number
    }
    result.append(min)
  }
  return result
}

func rollingAvg(numbers: [Int]) -> [Double] {
  var result: [Double] = []
  var sum = 0
  var count = 0
  for number in numbers {
    sum += number
    count += 1
    result.append(Double(sum) / Double(count))
  }
  return result
}

func rollingMedian(numbers: [Int]) -> [Double] {
  var result: [Double] = []
  var sorted = numbers.sorted()
  for number in numbers {
    var index = sorted.index(of: number)!
    var left = sorted[0..<index]
    var right = sorted[index+1..<sorted.count]
    var median: Double
    if left.count % 2 == 0 {
      median = Double(left[left.count/2] + left[left.count/2-1]) / 2
    } else {
      median = Double(left[left.count/2])
    }
    result.append(median)
    sorted = right
  }
  return result
}

func rollingSum(numbers: [Int]) -> [Int] {
  var result: [Int] = []
  var sum = 0
  for number in numbers {
    sum += number
    result.append(sum)
  }
  return result
}

func rollingProduct(numbers: [Int]) -> [Int] {
  var result: [Int] = []
  var product = 1
  for number in numbers {
    product *= number
    result.append(product)
  }
  return result
}
```swift
// From a given array of integers, generate an array of rolling maximum element found until given moment
// in the sequence.
// rollingMax(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 3, 3, 3, 4, 4]
func rollingMax(numbers: [Int]) -> [Int] {
  var result: [Int] = []
  var max = numbers[0]
  for number in numbers {
    if number > max {
      max = number
    }
    result.append(max)
  }
  return result
}

// From a given array of integers, generate an array of rolling minimum element found until given moment
// in the sequence.
// rollingMin(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 1, 1, 2, 2, 2, 2]
func rollingMin(numbers: [Int]) -> [Int] {
  var result: [Int] = []
  var min = numbers[0]
  for number in numbers {
    if number < min {
      min = number
    }
    result.append(min)
  }
  return result
}

// From a given array of integers, generate an array of rolling average element found until given moment
// in the sequence.
// rollingAvg(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 1.5, 2, 2, 2.5, 3, 3]
func rollingAvg(numbers: [Int]) -> [Double] {
  var result: [Double] = []
  var sum = 0
  var count = 0
  for number in numbers {
    sum += number
    count += 1
    result.append(Double(sum) / Double(count))
  }
  return result
}

// From a given array of integers, generate an array of rolling median element found until given moment
// in the sequence.
// rollingMedian(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 2, 2, 2, 3, 3]
func rollingMedian(numbers: [Int]) -> [Double] {
  var result: [Double] = []
  var sorted = numbers.sorted()
  for number in numbers {
    var index = sorted.index(of: number)!
    var left = sorted[0..<index]
    var right = sorted[index+1..<sorted.count]
    var median: Double
    if left.count % 2 == 0 {
      median = Double(left[left.count/2] + left[left.count/2-1]) / 2
    } else {
      median = Double(left[left.count/2])
    }
    result.append(median)
    sorted = right
  }
  return result
}

// From a given array of integers, generate an array of rolling sum element found until given moment
// in the sequence.
// rollingSum(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 3, 6, 9, 12, 15, 18]
func rollingSum(numbers: [Int]) -> [Int] {
  var result: [Int] = []
  var sum = 0
  for number in numbers {
    sum += number
    result.append(sum)
  }
  return result
}

// From a given array of integers, generate an array of rolling product element found until given moment
// in the sequence.
// rollingProduct(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 6, 24, 12, 8, 4]
func rollingProduct(numbers: [Int]) -> [Int] {
  var result: [Int] = []
  var product = 1
  for number in numbers {
    product *= number
    result.append(product)
  }
  return result
}
<|file_separator|>
var index = sorted.index(of: number)! // 'index(of:)' is deprecated: renamed to 'firstIndex(of:)'
sorted = right // cannot assign value of type 'ArraySlice<Int>' to type '[Int]'

func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = Int.min
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}
```swift
// From a given array of integers, generate an array of rolling maximum element found until given moment
// in the sequence.
// rollingMax(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 3, 3, 3, 4, 4]
func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = Int.min
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}
<|file_separator|>

func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = Int.min
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}
```swift
// From a given array of integers, generate an array of rolling maximum element found until given moment
// in the sequence.
// rollingMax(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 3, 3, 3, 4, 4]
func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = Int.min
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}
<|file_separator|>

func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = 0
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}

func rollingMin(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var min = 0
    for number in numbers {
        if number < min {
            min = number
        }
        result.append(min)
    }
    return result
}

func rollingSum(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var sum = 0
    for number in numbers {
        sum += number
        result.append(sum)
    }
    return result
}

func rollingAverage(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0
    for number in numbers {
        sum += number
        result.append(Double(sum) / Double(numbers.count))
    }
    return result
}

func rollingMedian(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sorted = numbers.sorted()
    for i in 0..<sorted.count {
        if i == 0 {
            result.append(Double(sorted[i]))
        } else {
            result.append(Double(sorted[i] + sorted[i - 1]) / 2)
        }
    }
    return result
}

func rollingMode(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var mode = 0
    var count = 0
    for number in numbers {
        if number == mode {
            count += 1
        } else {
            if count > 0 {
                result.append(mode)
            }
            mode = number
            count = 1
        }
    }
    if count > 0 {
        result.append(mode)
    }
    return result
}
```swift
// From a given array of integers, generate an array of rolling maximum element found until given moment
// in the sequence.
// rollingMax(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 3, 3, 3, 4, 4]
func rollingMax(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var max = 0
    for number in numbers {
        if number > max {
            max = number
        }
        result.append(max)
    }
    return result
}

// From a given array of integers, generate an array of rolling minimum element found until given moment
// in the sequence.
// rollingMin(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 1, 1, 1, 1, 1, 1]
func rollingMin(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var min = 0
    for number in numbers {
        if number < min {
            min = number
        }
        result.append(min)
    }
    return result
}

// From a given array of integers, generate an array of rolling sum element found until given moment
// in the sequence.
// rollingSum(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 3, 6, 9, 12, 15, 18]
func rollingSum(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var sum = 0
    for number in numbers {
        sum += number
        result.append(sum)
    }
    return result
}

// From a given array of integers, generate an array of rolling average element found until given moment
// in the sequence.
// rollingAverage(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 1.5, 2, 2.5, 3, 3.5, 4]
func rollingAverage(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sum = 0
    for number in numbers {
        sum += number
        result.append(Double(sum) / Double(numbers.count))
    }
    return result
}

// From a given array of integers, generate an array of rolling median element found until given moment
// in the sequence.
// rollingMedian(numbers: [1, 2, 3, 2, 3, 4, 2]) == [1, 2, 2, 2, 3, 3, 3]
func rollingMedian(numbers: [Int]) -> [Double] {
    var result = [Double]()
    var sorted = numbers.sorted()
    for i in 0..<sorted.count {
        if i == 0 {
            result.append(Double(sorted[i]))
        } else {
            result.append(Double(sorted[i] + sorted[i - 1]) / 2)
        }
    }
    return result
}

// From a given array of integers, generate an array of rolling mode element found until given moment
// in the sequence.
// rollingMode(numbers: [1, 2, 3, 2, 3, 4, 2]) == [2, 3, 4, 4, 4, 4, 4]
func rollingMode(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var mode = 0
    var count = 0
    for number in numbers {
        if number == mode {
            count += 1
        } else {
            if count > 0 {
                result.append(mode)
            }
            mode = number
            count = 1
        }
    }
    if count > 0 {
        result.append(mode)
    }
    return result
}

// From a given array of integers, generate an array of rolling mode element found until given moment
// in the sequence.
// rollingMode(numbers: [1, 2, 3, 2, 3, 4, 2]) == [2, 3, 4, 4, 4, 4, 4]
func rollingMode(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var mode = 0
    var count = 0
    for number in numbers {
        if number == mode {
            count += 1
        } else {
            if count > 0 {
                result.append(mode)
            }
var sorted = numbers.sorted() // variable 'sorted' was never mutated; consider changing to 'let' constant

func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let longestPalindrome = longestPalindrome(string: string)
    let palindromePrefix = longestPalindrome.reversed()
    return string + palindromePrefix
}

func longestPalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let stringLength = string.count
    var longestPalindrome = ""
    for i in 0..<stringLength {
        let palindrome = palindrome(string: string, start: i)
        if palindrome.count > longestPalindrome.count {
            longestPalindrome = palindrome
        }
    }
    return longestPalindrome
}

func palindrome(string: String, start: Int) -> String {
    if string.isEmpty {
        return ""
    }
    let stringLength = string.count
    var palindrome = ""
    var i = start
    var j = stringLength - 1
    while i >= 0 && j < stringLength {
        if string[string.index(string.startIndex, offsetBy: i)] == string[string.index(string.startIndex, offsetBy: j)] {
            palindrome = string[string.index(string.startIndex, offsetBy: i)...string.index(string.startIndex, offsetBy: j)]
            i -= 1
            j += 1
        } else {
            break
        }
    }
    return palindrome
}
```swift
// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let longestPalindrome = longestPalindrome(string: string)
    let palindromePrefix = longestPalindrome.reversed()
    return string + palindromePrefix
}

func longestPalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let stringLength = string.count
    var longestPalindrome = ""
    for i in 0..<stringLength {
        let palindrome = palindrome(string: string, start: i)
        if palindrome.count > longestPalindrome.count {
            longestPalindrome = palindrome
        }
    }
    return longestPalindrome
}

func palindrome(string: String, start: Int) -> String {
    if string.isEmpty {
        return ""
    }
    let stringLength = string.count
    var palindrome = ""
    var i = start
    var j = stringLength - 1
    while i >= 0 && j < stringLength {
        if string[string.index(string.startIndex, offsetBy: i)] == string[string.index(string.startIndex, offsetBy: j)] {
            palindrome = string[string.index(string.startIndex, offsetBy: i)...string.index(string.startIndex, offsetBy: j)]
            i -= 1
            j += 1
        } else {
            break
        }
    }
    return palindrome
}
<|file_separator|>
let reversed = string.reversed() // initialization of immutable value 'reversed' was never used; consider replacing with assignment to '_' or removing it
palindrome = string[string.index(string.startIndex, offsetBy: i)...string.index(string.startIndex, offsetBy: j)] // cannot assign value of type 'String.SubSequence' (aka 'Substring') to type 'String'

func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    var longestPalindrome = ""
    var longestPalindromeLength = 0
    for i in 0..<stringLength {
        let palindrome = string[string.index(string.startIndex, offsetBy: i)..<string.index(string.startIndex, offsetBy: stringLength)]
        if palindrome.isPalindrome() {
            if palindrome.count > longestPalindromeLength {
                longestPalindrome = palindrome
                longestPalindromeLength = palindrome.count
            }
        }
    }
    return string + longestPalindrome.reversed()
}

extension String {
    func isPalindrome() -> Bool {
        let stringLength = self.count
        if stringLength == 0 {
            return false
        }
        for i in 0..<stringLength/2 {
            if self[self.index(self.startIndex, offsetBy: i)] != self[self.index(self.startIndex, offsetBy: stringLength - i - 1)] {
                return false
            }
        }
        return true
    }
}
```swift
// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    var longestPalindrome = ""
    var longestPalindromeLength = 0
    for i in 0..<stringLength {
        let palindrome = string[string.index(string.startIndex, offsetBy: i)..<string.index(string.startIndex, offsetBy: stringLength)]
        if palindrome.isPalindrome() {
            if palindrome.count > longestPalindromeLength {
                longestPalindrome = palindrome
                longestPalindromeLength = palindrome.count
            }
        }
    }
    return string + longestPalindrome.reversed()
}

// Extension to String
extension String {
    func isPalindrome() -> Bool {
        let stringLength = self.count
        if stringLength == 0 {
            return false
        }
        for i in 0..<stringLength/2 {
            if self[self.index(self.startIndex, offsetBy: i)] != self[self.index(self.startIndex, offsetBy: stringLength - i - 1)] {
                return false
            }
        }
        return true
    }
}
<|file_separator|>
if palindrome.isPalindrome() { // value of type 'Substring' has no member 'isPalindrome'
longestPalindrome = palindrome // cannot assign value of type 'Substring' to type 'String'

func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    let stringPrefix = string.prefix(stringLength / 2)
    let stringSuffix = string.suffix(stringLength / 2)
    let stringPrefixReversed = stringPrefix.reversed()
    let stringSuffixReversed = stringSuffix.reversed()
    let stringPrefixPalindrome = stringPrefixReversed.joined()
    let stringSuffixPalindrome = stringSuffixReversed.joined()
    let stringPalindrome = stringPrefixPalindrome + stringSuffixPalindrome
    return stringPalindrome
}
```swift
// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    let stringPrefix = string.prefix(stringLength / 2)
    let stringSuffix = string.suffix(stringLength / 2)
    let stringPrefixReversed = stringPrefix.reversed()
    let stringSuffixReversed = stringSuffix.reversed()
    let stringPrefixPalindrome = stringPrefixReversed.joined()
    let stringSuffixPalindrome = stringSuffixReversed.joined()
    let stringPalindrome = stringPrefixPalindrome + stringSuffixPalindrome
    return stringPalindrome
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    let stringPrefix = string.prefix(stringLength / 2)
    let stringSuffix = string.suffix(stringLength / 2)
    let stringPrefixReversed = stringPrefix.reversed()
    let stringSuffixReversed = stringSuffix.reversed()
    let stringPrefixPalindrome = stringPrefixReversed.joined()
    let stringSuffixPalindrome = stringSuffixReversed.joined()
    let stringPalindrome = stringPrefixPalindrome + stringSuffixPalindrome
    return stringPalindrome
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    let stringPrefix = string.prefix(stringLength / 2)
    let stringSuffix = string.suffix(stringLength / 2)
    let stringPrefixReversed = stringPrefix.reversed()
    let stringSuffixReversed = stringSuffix.reversed()
    let stringPrefixPalindrome = stringPrefixReversed.joined()
    let stringSuffixPalindrome = stringSuffixReversed.joined()
    let stringPalindrome = stringPrefixPalindrome + stringSuffixPalindrome
    return stringPalindrome
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    let stringPrefix = string.prefix(stringLength / 2)
    let stringSuffix = string.suffix(stringLength / 2)
    let stringPrefixReversed = stringPrefix.reversed()
    let stringSuffixReversed = stringSuffix.reversed()
    let stringPrefixPalindrome = stringPrefixReversed.joined()
    let stringSuffixPalindrome = stringSuffixReversed.joined()
    let stringPalindrome = stringPrefixPalindrome + stringSuffixPalindrome
    return stringPalindrome
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    let stringPrefix = string.prefix(stringLength / 2)
    let stringSuffix = string.suffix(stringLength / 2)
    let stringPrefixReversed = stringPrefix.reversed()
    let
let stringPrefixPalindrome = stringPrefixReversed.joined() // no exact matches in call to instance method 'joined'
let stringSuffixPalindrome = stringSuffixReversed.joined() // no exact matches in call to instance method 'joined'

func makePalindrome(string: String) -> String {
    let string = string.lowercased()
    let palindrome = string.reversed()
    let prefix = string.prefix(palindrome.count)
    let suffix = palindrome.suffix(string.count)
    return String(prefix) + String(suffix.reversed())
}
```swift
// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let string = string.lowercased()
    let palindrome = string.reversed()
    let prefix = string.prefix(palindrome.count)
    let suffix = palindrome.suffix(string.count)
    return String(prefix) + String(suffix.reversed())
}
<|file_separator|>
 // XCTAssertTrue failed

func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let prefix = string.prefix(string.count / 2)
    let postfix = string.suffix(string.count / 2)
    let reversedPrefix = String(prefix.reversed())
    return String(postfix) + reversedPrefix
}
```swift
// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let prefix = string.prefix(string.count / 2)
    let postfix = string.suffix(string.count / 2)
    let reversedPrefix = String(prefix.reversed())
    return String(postfix) + reversedPrefix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let prefix = string.prefix(string.count / 2)
    let postfix = string.suffix(string.count / 2)
    let reversedPrefix = String(prefix.reversed())
    return String(postfix) + reversedPrefix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let prefix = string.prefix(string.count / 2)
    let postfix = string.suffix(string.count / 2)
    let reversedPrefix = String(prefix.reversed())
    return String(postfix) + reversedPrefix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let prefix = string.prefix(string.count / 2)
    let postfix = string.suffix(string.count / 2)
    let reversedPrefix = String(prefix.reversed())
    return String(postfix) + reversedPrefix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let prefix = string.prefix(string.count / 2)
    let postfix = string.suffix(string.count / 2)
    let reversedPrefix = String(prefix.reversed())
    return String(postfix) + reversedPrefix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let prefix = string.prefix(string.count / 2)
    let postfix = string.suffix(string.count / 2)
    let reversedPrefix = String(prefix.reversed())
    return String(postfix) + reversedPrefix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string
 // XCTAssertTrue failed

func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    
    let palindrome = string.reversed()
    
    let palindromePrefix = string.prefix(palindrome.count)
    let palindromeSuffix = palindrome.suffix(stringLength - palindromePrefix.count)
    
    return String(palindromePrefix) + String(palindromeSuffix.reversed())
}
```swift
// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    
    let palindrome = string.reversed()
    
    let palindromePrefix = string.prefix(palindrome.count)
    let palindromeSuffix = palindrome.suffix(stringLength - palindromePrefix.count)
    
    return String(palindromePrefix) + String(palindromeSuffix.reversed())
}
<|file_separator|>
 // XCTAssertTrue failed

func makePalindrome(string: String) -> String {
    let reversed = string.reversed()
    let palindrome = string + String(reversed)
    let palindromePrefix = palindrome.prefix(while: { $0 == $1 })
    let palindromeSuffix = palindrome.suffix(while: { $0 == $1 })
    return String(palindromePrefix) + String(reversed) + String(palindromeSuffix)
}
```swift
// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let reversed = string.reversed()
    let palindrome = string + String(reversed)
    let palindromePrefix = palindrome.prefix(while: { $0 == $1 })
    let palindromeSuffix = palindrome.suffix(while: { $0 == $1 })
    return String(palindromePrefix) + String(reversed) + String(palindromeSuffix)
}
<|file_separator|>
let palindromePrefix = palindrome.prefix(while: { $0 == $1 }) // contextual closure type '(String.Element) throws -> Bool' (aka '(Character) throws -> Bool') expects 1 argument, but 2 were used in closure body
let palindromeSuffix = palindrome.suffix(while: { $0 == $1 }) // no exact matches in call to instance method 'suffix'

func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let suffix = string[string.index(string.endIndex, offsetBy: -1)..<string.endIndex]
    let prefix = reversed[reversed.index(reversed.endIndex, offsetBy: -1)..<reversed.endIndex]
    let palindrome = string + String(prefix)
    return palindrome
}
```swift
// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let suffix = string[string.index(string.endIndex, offsetBy: -1)..<string.endIndex]
    let prefix = reversed[reversed.index(reversed.endIndex, offsetBy: -1)..<reversed.endIndex]
    let palindrome = string + String(prefix)
    return palindrome
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let suffix = string[string.index(string.endIndex, offsetBy: -1)..<string.endIndex]
    let prefix = reversed[reversed.index(reversed.endIndex, offsetBy: -1)..<reversed.endIndex]
    let palindrome = string + String(prefix)
    return palindrome
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let suffix = string[string.index(string.endIndex, offsetBy: -1)..<string.endIndex]
    let prefix = reversed[reversed.index(reversed.endIndex, offsetBy: -1)..<reversed.endIndex]
    let palindrome = string + String(prefix)
    return palindrome
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let suffix = string[string.index(string.endIndex, offsetBy: -1)..<string.endIndex]
    let prefix = reversed[reversed.index(reversed.endIndex, offsetBy: -1)..<reversed.endIndex]
    let palindrome = string + String(prefix)
    return palindrome
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let suffix = string[string.index(string.endIndex, offsetBy: -1)..<string.endIndex]
    let prefix = reversed[reversed.index(reversed.endIndex, offsetBy: -1)..<reversed.endIndex]
    let palindrome = string + String(prefix)
    return palindrome
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        
let suffix = string[string.index(string.endIndex, offsetBy: -1)..<string.endIndex] // initialization of immutable value 'suffix' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    
    let palindromePrefix = string.prefix(stringLength / 2)
    let palindromeSuffix = string.suffix(stringLength / 2)
    let palindromePrefixReversed = palindromePrefix.reversed()
    
    return String(palindromePrefixReversed) + palindromeSuffix
}
```swift
// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    
    let palindromePrefix = string.prefix(stringLength / 2)
    let palindromeSuffix = string.suffix(stringLength / 2)
    let palindromePrefixReversed = palindromePrefix.reversed()
    
    return String(palindromePrefixReversed) + palindromeSuffix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    
    let palindromePrefix = string.prefix(stringLength / 2)
    let palindromeSuffix = string.suffix(stringLength / 2)
    let palindromePrefixReversed = palindromePrefix.reversed()
    
    return String(palindromePrefixReversed) + palindromeSuffix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    
    let palindromePrefix = string.prefix(stringLength / 2)
    let palindromeSuffix = string.suffix(stringLength / 2)
    let palindromePrefixReversed = palindromePrefix.reversed()
    
    return String(palindromePrefixReversed) + palindromeSuffix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    
    let palindromePrefix = string.prefix(stringLength / 2)
    let palindromeSuffix = string.suffix(stringLength / 2)
    let palindromePrefixReversed = palindromePrefix.reversed()
    
    return String(palindromePrefixReversed) + palindromeSuffix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    
    let palindromePrefix = string.prefix(stringLength / 2)
    let palindromeSuffix = string.suffix(stringLength / 2)
    let palindromePrefixReversed = palindromePrefix.reversed()
    
    return String(palindromePrefixReversed) + palindromeSuffix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    let stringLength = string.count
    if stringLength == 0 {
        return ""
    }
    
    let palindromePrefix = string
 // XCTAssertTrue failed

func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let reversedString = String(reversed)
    let palindrome = string + reversedString
    let palindromeLength = palindrome.count
    let palindromePrefix = palindrome.prefix(palindromeLength / 2)
    let palindromeSuffix = palindrome.suffix(palindromeLength / 2)
    let palindromePrefixReversed = String(palindromePrefix.reversed())
    return palindromePrefixReversed + palindromeSuffix
}
```swift
// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let reversedString = String(reversed)
    let palindrome = string + reversedString
    let palindromeLength = palindrome.count
    let palindromePrefix = palindrome.prefix(palindromeLength / 2)
    let palindromeSuffix = palindrome.suffix(palindromeLength / 2)
    let palindromePrefixReversed = String(palindromePrefix.reversed())
    return palindromePrefixReversed + palindromeSuffix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let reversedString = String(reversed)
    let palindrome = string + reversedString
    let palindromeLength = palindrome.count
    let palindromePrefix = palindrome.prefix(palindromeLength / 2)
    let palindromeSuffix = palindrome.suffix(palindromeLength / 2)
    let palindromePrefixReversed = String(palindromePrefix.reversed())
    return palindromePrefixReversed + palindromeSuffix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let reversedString = String(reversed)
    let palindrome = string + reversedString
    let palindromeLength = palindrome.count
    let palindromePrefix = palindrome.prefix(palindromeLength / 2)
    let palindromeSuffix = palindrome.suffix(palindromeLength / 2)
    let palindromePrefixReversed = String(palindromePrefix.reversed())
    return palindromePrefixReversed + palindromeSuffix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let reversedString = String(reversed)
    let palindrome = string + reversedString
    let palindromeLength = palindrome.count
    let palindromePrefix = palindrome.prefix(palindromeLength / 2)
    let palindromeSuffix = palindrome.suffix(palindromeLength / 2)
    let palindromePrefixReversed = String(palindromePrefix.reversed())
    return palindromePrefixReversed + palindromeSuffix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to the end of the string reverse of a string prefix that comes before the palindromic suffix.
// makePalindrome(string: "") == ""
// makePalindrome(string: "cat") == "catac"
// makePalindrome(string: "cata") == "catac"
func makePalindrome(string: String) -> String {
    if string.isEmpty {
        return ""
    }
    let reversed = string.reversed()
    let reversedString = String(reversed)
    let palindrome = string + reversedString
    let palindromeLength = palindrome.count
    let palindromePrefix = palindrome.prefix(palindromeLength / 2)
    let palindromeSuffix = palindrome.suffix(palindromeLength / 2)
    let palindromePrefixReversed = String(palindromePrefix.reversed())
    return palindromePrefixReversed + palindromeSuffix
}

// Find the shortest palindrome that begins with a supplied string.
// Algorithm idea is simple:
// - Find the longest postfix of supplied string that is a palindrome.
// - Append to
 // XCTAssertTrue failed

func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[i] == b[i] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
```swift
// Input are two strings a and b consisting only of 1s and 0s.
// Perform binary XOR on these inputs and return result also as a string.
// stringXor(a: "010", b: "110") == "100"
func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[i] == b[i] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
<|file_separator|>
if a[i] == b[i] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if a[i] == b[i] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[i] == b[i] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
```swift
// Input are two strings a and b consisting only of 1s and 0s.
// Perform binary XOR on these inputs and return result also as a string.
// stringXor(a: "010", b: "110") == "100"
func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[i] == b[i] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
<|file_separator|>
if a[i] == b[i] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if a[i] == b[i] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[i] == b[i] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
```swift
// Input are two strings a and b consisting only of 1s and 0s.
// Perform binary XOR on these inputs and return result also as a string.
// stringXor(a: "010", b: "110") == "100"
func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[i] == b[i] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
<|file_separator|>
if a[i] == b[i] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if a[i] == b[i] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[a.index(a.startIndex, offsetBy: i)] == b[b.index(b.startIndex, offsetBy: i)] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
```swift
// Input are two strings a and b consisting only of 1s and 0s.
// Perform binary XOR on these inputs and return result also as a string.
// stringXor(a: "010", b: "110") == "100"
func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[a.index(a.startIndex, offsetBy: i)] == b[b.index(b.startIndex, offsetBy: i)] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
<|file_separator|>

func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[a.index(a.startIndex, offsetBy: i)] != b[b.index(b.startIndex, offsetBy: i)] {
            result += "1"
        } else {
            result += "0"
        }
    }
    return result
}
```swift
// Input are two strings a and b consisting only of 1s and 0s.
// Perform binary XOR on these inputs and return result also as a string.
// stringXor(a: "010", b: "110") == "100"
func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[a.index(a.startIndex, offsetBy: i)] != b[b.index(b.startIndex, offsetBy: i)] {
            result += "1"
        } else {
            result += "0"
        }
    }
    return result
}
<|file_separator|>

func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[i] == b[i] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
```swift
// Input are two strings a and b consisting only of 1s and 0s.
// Perform binary XOR on these inputs and return result also as a string.
// stringXor(a: "010", b: "110") == "100"
func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[i] == b[i] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
<|file_separator|>
if a[i] == b[i] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if a[i] == b[i] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[i] == b[i] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
```swift
// Input are two strings a and b consisting only of 1s and 0s.
// Perform binary XOR on these inputs and return result also as a string.
// stringXor(a: "010", b: "110") == "100"
func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[i] == b[i] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
<|file_separator|>
if a[i] == b[i] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if a[i] == b[i] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[a.index(a.startIndex, offsetBy: i)] == b[b.index(b.startIndex, offsetBy: i)] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
```swift
// Input are two strings a and b consisting only of 1s and 0s.
// Perform binary XOR on these inputs and return result also as a string.
// stringXor(a: "010", b: "110") == "100"
func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[a.index(a.startIndex, offsetBy: i)] == b[b.index(b.startIndex, offsetBy: i)] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
<|file_separator|>

func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[a.index(a.startIndex, offsetBy: i)] != b[b.index(b.startIndex, offsetBy: i)] {
            result += "1"
        } else {
            result += "0"
        }
    }
    return result
}
```swift
// Input are two strings a and b consisting only of 1s and 0s.
// Perform binary XOR on these inputs and return result also as a string.
// stringXor(a: "010", b: "110") == "100"
func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[a.index(a.startIndex, offsetBy: i)] != b[b.index(b.startIndex, offsetBy: i)] {
            result += "1"
        } else {
            result += "0"
        }
    }
    return result
}
<|file_separator|>

func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[a.index(a.startIndex, offsetBy: i)] == b[b.index(b.startIndex, offsetBy: i)] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
```swift
// Input are two strings a and b consisting only of 1s and 0s.
// Perform binary XOR on these inputs and return result also as a string.
// stringXor(a: "010", b: "110") == "100"
func stringXor(a: String, b: String) -> String {
    var result = ""
    for i in 0..<a.count {
        if a[a.index(a.startIndex, offsetBy: i)] == b[b.index(b.startIndex, offsetBy: i)] {
            result += "0"
        } else {
            result += "1"
        }
    }
    return result
}
<|file_separator|>

func longest(strings: [String]) -> String? {
  if strings.count == 0 {
    return nil
  }
  
  var longest = strings[0]
  for i in 1..<strings.count {
    if strings[i].count > longest.count {
      longest = strings[i]
    }
  }
  return longest
}
```swift
// Out of array of strings, return the longest one. Return the first one in case of multiple
// strings of the same length. Return nil in case the input array is empty.
// longest(strings: [] as [String]) == nil
// longest(strings: ["a", "b", "c"]) == "a"
// longest(strings: ["a", "bb", "ccc"]) == "ccc"
func longest(strings: [String]) -> String? {
  if strings.count == 0 {
    return nil
  }
  
  var longest = strings[0]
  for i in 1..<strings.count {
    if strings[i].count > longest.count {
      longest = strings[i]
    }
  }
  return longest
}
<|file_separator|>```

func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for string in strings {
        if string.count > longest.count {
            longest = string
        }
    }
    return longest
}
```swift
// Out of array of strings, return the longest one. Return the first one in case of multiple
// strings of the same length. Return nil in case the input array is empty.
// longest(strings: [] as [String]) == nil
// longest(strings: ["a", "b", "c"]) == "a"
// longest(strings: ["a", "bb", "ccc"]) == "ccc"
func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for string in strings {
        if string.count > longest.count {
            longest = string
        }
    }
    return longest
}
<|file_separator|>```

func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for i in 1..<strings.count {
        if strings[i].count > longest.count {
            longest = strings[i]
        }
    }
    return longest
}

func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 0..<integers.count {
        sum += integers[i]
    }
    return sum
}

func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 1..<integers.count {
        sum += integers[i]
    }
    return sum
}

func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 0..<integers.count - 1 {
        sum += integers[i]
    }
    return sum
}

func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 0..<integers.count {
        if i != integers.count - 1 {
            sum += integers[i]
        }
    }
    return sum
}
```swift
// Out of array of strings, return the longest one. Return the first one in case of multiple
// strings of the same length. Return nil in case the input array is empty.
// longest(strings: [] as [String]) == nil
// longest(strings: ["a", "b", "c"]) == "a"
// longest(strings: ["a", "bb", "ccc"]) == "ccc"
func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for i in 1..<strings.count {
        if strings[i].count > longest.count {
            longest = strings[i]
        }
    }
    return longest
}

// Given an array of integers, return the sum of all the integers.
// sum(integers: []) == 0
// sum(integers: [1, 2, 3]) == 6
func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 0..<integers.count {
        sum += integers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the integers except for the first one.
// sum(integers: [1, 2, 3]) == 4
// sum(integers: [1, 2, 3, 4]) == 9
func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 1..<integers.count {
        sum += integers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the integers except for the last one.
// sum(integers: [1, 2, 3]) == 4
// sum(integers: [1, 2, 3, 4]) == 8
func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 0..<integers.count - 1 {
        sum += integers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the integers except for the last one.
// sum(integers: [1, 2, 3, 4]) == 8
// sum(integers: [1, 2, 3, 4, 5]) == 14
func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 0..<integers.count {
        if i != integers.count - 1 {
            sum += integers[i]
        }
    }
    return sum
}

// Given an array of integers, return the sum of all the integers except for the first one.
// sum(integers: [1, 2, 3, 4]) == 8
// sum(integers: [1, 2, 3, 4, 5]) == 14
func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 1..<integers.count {
        sum += integers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the integers except for the last one.
// sum(integers: [1, 2, 3, 4]) == 8
// sum(integers: [1, 2, 3, 4, 5]) == 14
func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 0..<integers.count - 1 {
        sum += integers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the integers except for the last one.
// sum(integers: [1, 2, 3, 4]) == 8
// sum(integers: [1, 2, 3, 4, 5]) == 14
func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 0..<integers.count {
        if i != integers.count - 1 {
            sum += integers[i]
        }
    }
    return sum
}

// Given an array of integers, return the sum of all the integers except for the last one.
// sum(integers: [1, 2, 3, 4]) == 8
// sum(integers: [1, 2, 3, 4, 5]) == 14
func sum(integers: [Int]) -> Int {
    var sum = 0
    for i in 0..<integers.count {
        if i != integers.count - 1 {
            sum += integers[i]
        }
    }
    return sum
}

// Given an array of integers, return the sum of all the integers except for the last
func sum(integers: [Int]) -> Int { // invalid redeclaration of 'sum(integers:)'
func sum(integers: [Int]) -> Int { // invalid redeclaration of 'sum(integers:)'
func sum(integers: [Int]) -> Int { // invalid redeclaration of 'sum(integers:)'

func longest(strings: [String]) -> String? {
    if strings.isEmpty {
        return nil
    }
    var longest = strings[0]
    for string in strings {
        if string.count > longest.count {
            longest = string
        }
    }
    return longest
}

func largestSum(numbers: [Int]) -> Int {
    var largest = 0
    var secondLargest = 0
    for number in numbers {
        if number > largest {
            secondLargest = largest
            largest = number
        } else if number > secondLargest {
            secondLargest = number
        }
    }
    return largest + secondLargest
}

func smallestSum(numbers: [Int]) -> Int {
    var smallest = Int.max
    var secondSmallest = Int.max
    for number in numbers {
        if number < smallest {
            secondSmallest = smallest
            smallest = number
        } else if number < secondSmallest {
            secondSmallest = number
        }
    }
    return smallest + secondSmallest
}
```swift
// Out of array of strings, return the longest one. Return the first one in case of multiple
// strings of the same length. Return nil in case the input array is empty.
// longest(strings: [] as [String]) == nil
// longest(strings: ["a", "b", "c"]) == "a"
// longest(strings: ["a", "bb", "ccc"]) == "ccc"
func longest(strings: [String]) -> String? {
    if strings.isEmpty {
        return nil
    }
    var longest = strings[0]
    for string in strings {
        if string.count > longest.count {
            longest = string
        }
    }
    return longest
}

// Given an array of integers, return the sum of the two largest numbers.
// largestSum([1, 2, 3, 4, 5]) == 10
// largestSum([1, 1, 1, 1]) == 2
func largestSum(numbers: [Int]) -> Int {
    var largest = 0
    var secondLargest = 0
    for number in numbers {
        if number > largest {
            secondLargest = largest
            largest = number
        } else if number > secondLargest {
            secondLargest = number
        }
    }
    return largest + secondLargest
}

// Given an array of integers, return the sum of the two smallest numbers.
// smallestSum([1, 2, 3, 4, 5]) == 3
// smallestSum([5, 5, 5, 5, 5]) == 10
func smallestSum(numbers: [Int]) -> Int {
    var smallest = Int.max
    var secondSmallest = Int.max
    for number in numbers {
        if number < smallest {
            secondSmallest = smallest
            smallest = number
        } else if number < secondSmallest {
            secondSmallest = number
        }
    }
    return smallest + secondSmallest
}

// Given an array of integers, return the sum of the two smallest numbers.
// smallestSum([1, 2, 3, 4, 5]) == 3
// smallestSum([5, 5, 5, 5, 5]) == 10
func smallestSum(numbers: [Int]) -> Int {
    var smallest = Int.max
    var secondSmallest = Int.max
    for number in numbers {
        if number < smallest {
            secondSmallest = smallest
            smallest = number
        } else if number < secondSmallest {
            secondSmallest = number
        }
    }
    return smallest + secondSmallest
}

// Given an array of integers, return the sum of the two smallest numbers.
// smallestSum([1, 2, 3, 4, 5]) == 3
// smallestSum([5, 5, 5, 5, 5]) == 10
func smallestSum(numbers: [Int]) -> Int {
    var smallest = Int.max
    var secondSmallest = Int.max
    for number in numbers {
        if number < smallest {
            secondSmallest = smallest
            smallest = number
        } else if number < secondSmallest {
            secondSmallest = number
        }
    }
    return smallest + secondSmallest
}

// Given an array of integers, return the sum of the two smallest numbers.
// smallestSum([1, 2, 3, 4, 5]) == 3
// smallestSum([5, 5, 5, 5, 5]) == 10
func smallestSum(numbers: [Int]) -> Int {
    var smallest = Int.max
    var secondSmallest = Int.max
    for number in numbers {
        if number < smallest {
            secondSmallest = smallest
            smallest = number
        } else if number < secondSmallest {
            secondSmallest = number
        }
    }
    return smallest + secondSmallest
}

// Given an array of integers, return the sum of the two smallest numbers.
// smallestSum([1, 2, 3, 4, 5]) == 3
// smallestSum([5, 5, 5, 5, 5]) == 10
func smallestSum(numbers: [Int]) -> Int {
    var smallest = Int.max
    var secondSmallest = Int.max
    for number in numbers {
        if number < smallest {
            secondSmallest = smallest
            smallest = number
        } else if number < secondSmallest {
            secondSmallest = number
        }
    }
    return smallest + secondSmallest
}

// Given an array of integers, return the sum of the two smallest numbers.
// smallestSum([1, 2, 3, 4, 5]) == 3
// smallestSum([5, 5, 5, 5, 5]) == 10
func smallestSum(numbers: [Int]) -> Int {
    var smallest = Int.max

func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    
    var longest = strings[0]
    for i in 1..<strings.count {
        if strings[i].count > longest.count {
            longest = strings[i]
        }
    }
    return longest
}
```swift
// Out of array of strings, return the longest one. Return the first one in case of multiple
// strings of the same length. Return nil in case the input array is empty.
// longest(strings: [] as [String]) == nil
// longest(strings: ["a", "b", "c"]) == "a"
// longest(strings: ["a", "bb", "ccc"]) == "ccc"
func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    
    var longest = strings[0]
    for i in 1..<strings.count {
        if strings[i].count > longest.count {
            longest = strings[i]
        }
    }
    return longest
}
<|file_separator|>```

func longest(strings: [String]) -> String? {
    if strings.isEmpty {
        return nil
    }
    var longest = strings[0]
    for string in strings {
        if string.count > longest.count {
            longest = string
        }
    }
    return longest
}

func sumLargest(numbers: [Int]) -> Int {
    var largest = numbers[0]
    var secondLargest = numbers[1]
    if secondLargest > largest {
        largest = secondLargest
        secondLargest = numbers[0]
    }
    for number in numbers {
        if number > largest {
            secondLargest = largest
            largest = number
        } else if number > secondLargest {
            secondLargest = number
        }
    }
    return largest + secondLargest
}

func sumSmallest(numbers: [Int]) -> Int {
    var smallest = numbers[0]
    var secondSmallest = numbers[1]
    if secondSmallest < smallest {
        smallest = secondSmallest
        secondSmallest = numbers[0]
    }
    for number in numbers {
        if number < smallest {
            secondSmallest = smallest
            smallest = number
        } else if number < secondSmallest {
            secondSmallest = number
        }
    }
    return smallest + secondSmallest
}

func sumLargestEven(numbers: [Int]) -> Int {
    var largest = numbers[0]
    var secondLargest = numbers[1]
    if secondLargest % 2 == 0 {
        largest = secondLargest
        secondLargest = numbers[0]
    }
    for number in numbers {
        if number % 2 == 0 {
            if number > largest {
                secondLargest = largest
                largest = number
            } else if number > secondLargest {
                secondLargest = number
            }
        }
    }
    return largest + secondLargest
}

func sumSmallestOdd(numbers: [Int]) -> Int {
    var smallest = numbers[0]
    var secondSmallest = numbers[1]
    if secondSmallest % 2 == 0 {
        smallest = secondSmallest
        secondSmallest = numbers[0]
    }
    for number in numbers {
        if number % 2 == 1 {
            if number < smallest {
                secondSmallest = smallest
                smallest = number
            } else if number < secondSmallest {
                secondSmallest = number
            }
        }
    }
    return smallest + secondSmallest
}
```swift
// Out of array of strings, return the longest one. Return the first one in case of multiple
// strings of the same length. Return nil in case the input array is empty.
// longest(strings: [] as [String]) == nil
// longest(strings: ["a", "b", "c"]) == "a"
// longest(strings: ["a", "bb", "ccc"]) == "ccc"
func longest(strings: [String]) -> String? {
    if strings.isEmpty {
        return nil
    }
    var longest = strings[0]
    for string in strings {
        if string.count > longest.count {
            longest = string
        }
    }
    return longest
}

// Given an array of integers, return the sum of the two largest numbers.
// sumLargest(numbers: [1, 2, 3]) == 5
// sumLargest(numbers: [1, 2, 3, 4, 5]) == 10
// sumLargest(numbers: [1, 3, 4, 2, 5]) == 10
func sumLargest(numbers: [Int]) -> Int {
    var largest = numbers[0]
    var secondLargest = numbers[1]
    if secondLargest > largest {
        largest = secondLargest
        secondLargest = numbers[0]
    }
    for number in numbers {
        if number > largest {
            secondLargest = largest
            largest = number
        } else if number > secondLargest {
            secondLargest = number
        }
    }
    return largest + secondLargest
}

// Given an array of integers, return the sum of the two smallest numbers.
// sumSmallest(numbers: [1, 2, 3]) == 3
// sumSmallest(numbers: [1, 2, 3, 4, 5]) == 6
// sumSmallest(numbers: [1, 3, 4, 2, 5]) == 3
func sumSmallest(numbers: [Int]) -> Int {
    var smallest = numbers[0]
    var secondSmallest = numbers[1]
    if secondSmallest < smallest {
        smallest = secondSmallest
        secondSmallest = numbers[0]
    }
    for number in numbers {
        if number < smallest {
            secondSmallest = smallest
            smallest = number
        } else if number < secondSmallest {
            secondSmallest = number
        }
    }
    return smallest + secondSmallest
}

// Given an array of integers, return the sum of the two largest even numbers.
// sumLargestEven(numbers: [1, 2, 3]) == 2
// sumLargestEven(numbers: [1, 2, 3, 4, 5]) == 6
// sumLargestEven(numbers: [1, 3, 4, 2, 5]) == 6
func sumLargestEven(numbers: [Int]) -> Int {
    var largest = numbers[0]
    var secondLargest = numbers[1]
    if secondLargest % 2 == 0 {
        largest = secondLargest
        secondLargest = numbers[0]
    }
    for number in numbers {
        if number % 2 == 0 {
            if number > largest {
                secondLargest = largest
                largest = number
            } else if number > secondLargest {
                secondLargest = number
            }
        }
    }
    return largest + secondLargest
}

// Given an array of integers, return the sum of the two smallest odd numbers.
// sumSmallestOdd(numbers: [1, 2, 3]) == 3
// sumSmallestOdd(numbers: [1, 2, 3, 4, 5]) == 6
// sumSmallestOdd(numbers: [1, 3, 4, 2, 5]) == 6
func sumSmallestOdd(numbers: [Int]) -> Int {
    var smallest = numbers[0]
    var secondSmallest = numbers[1]
    if secondSmallest % 2 == 0 {
        smallest = secondSmallest
        secondSmallest = numbers[0]
    }
    for number in numbers {
        if number % 2 == 1 {
            if number < smallest {
                secondSmallest = smallest
                smallest = number
            } else if number < secondSmallest {
                secondSmallest = number
            }
        }
    }
    return smallest + secondSmallest
}

// Given an array of integers, return the sum of the two largest odd numbers.
// sumLargestOdd(numbers: [1, 2, 3]) == 2
// sumLargestOdd(numbers: [1, 2, 3, 4, 5]) == 6
// sumLargestOdd(numbers: [1, 3, 4, 2, 5]) == 6
func sumLargestOdd(numbers: [Int]) -> Int {
    var largest = numbers[0]
    var secondLargest

func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for string in strings {
        if string.count > longest.count {
            longest = string
        }
    }
    return longest
}
```swift
// Out of array of strings, return the longest one. Return the first one in case of multiple
// strings of the same length. Return nil in case the input array is empty.
// longest(strings: [] as [String]) == nil
// longest(strings: ["a", "b", "c"]) == "a"
// longest(strings: ["a", "bb", "ccc"]) == "ccc"
func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for string in strings {
        if string.count > longest.count {
            longest = string
        }
    }
    return longest
}
<|file_separator|>```

func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for i in 1..<strings.count {
        if strings[i].count > longest.count {
            longest = strings[i]
        }
    }
    return longest
}
```swift
// Out of array of strings, return the longest one. Return the first one in case of multiple
// strings of the same length. Return nil in case the input array is empty.
// longest(strings: [] as [String]) == nil
// longest(strings: ["a", "b", "c"]) == "a"
// longest(strings: ["a", "bb", "ccc"]) == "ccc"
func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for i in 1..<strings.count {
        if strings[i].count > longest.count {
            longest = strings[i]
        }
    }
    return longest
}
<|file_separator|>```

func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for i in 1..<strings.count {
        if strings[i].count > longest.count {
            longest = strings[i]
        }
    }
    return longest
}

func sumOfEvens(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] % 2 == 0 {
            sum += numbers[i]
        }
    }
    return sum
}

func sumOfOdds(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] % 2 != 0 {
            sum += numbers[i]
        }
    }
    return sum
}

func sumOfPositives(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] > 0 {
            sum += numbers[i]
        }
    }
    return sum
}

func sumOfNegatives(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] < 0 {
            sum += numbers[i]
        }
    }
    return sum
}

func sumOfAll(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        sum += numbers[i]
    }
    return sum
}

func sumOfRest(numbers: [Int]) -> Int {
    var sum = 0
    for i in 1..<numbers.count {
        sum += numbers[i]
    }
    return sum
}

func sumOfButLast(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count-1 {
        sum += numbers[i]
    }
    return sum
}
```swift
// Out of array of strings, return the longest one. Return the first one in case of multiple
// strings of the same length. Return nil in case the input array is empty.
// longest(strings: [] as [String]) == nil
// longest(strings: ["a", "b", "c"]) == "a"
// longest(strings: ["a", "bb", "ccc"]) == "ccc"
func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for i in 1..<strings.count {
        if strings[i].count > longest.count {
            longest = strings[i]
        }
    }
    return longest
}

// Given an array of integers, return the sum of all the even numbers.
// sumOfEvens([2, 1, 2, 3, 4]) == 6
// sumOfEvens([2, 5, 6, 3, 4]) == 12
func sumOfEvens(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] % 2 == 0 {
            sum += numbers[i]
        }
    }
    return sum
}

// Given an array of integers, return the sum of all the odd numbers.
// sumOfOdds([2, 1, 2, 3, 4]) == 4
// sumOfOdds([2, 5, 6, 3, 4]) == 5
func sumOfOdds(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] % 2 != 0 {
            sum += numbers[i]
        }
    }
    return sum
}

// Given an array of integers, return the sum of all the positive numbers.
// sumOfPositives([2, 1, 2, 3, 4]) == 10
// sumOfPositives([2, -1, 2, 3, 4]) == 10
func sumOfPositives(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] > 0 {
            sum += numbers[i]
        }
    }
    return sum
}

// Given an array of integers, return the sum of all the negative numbers.
// sumOfNegatives([2, 1, 2, 3, 4]) == 0
// sumOfNegatives([2, -1, 2, 3, 4]) == 6
func sumOfNegatives(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] < 0 {
            sum += numbers[i]
        }
    }
    return sum
}

// Given an array of integers, return the sum of all the numbers.
// sumOfAll([2, 1, 2, 3, 4]) == 10
// sumOfAll([2, -1, 2, 3, 4]) == 10
func sumOfAll(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        sum += numbers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the numbers except the first one.
// sumOfRest([2, 1, 2, 3, 4]) == 10
// sumOfRest([2, -1, 2, 3, 4]) == 10
func sumOfRest(numbers: [Int]) -> Int {
    var sum = 0
    for i in 1..<numbers.count {
        sum += numbers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the numbers except the last one.
// sumOfButLast([2, 1, 2, 3, 4]) == 9
// sumOfButLast([2, -1, 2, 3, 4]) == 9
func sumOfButLast(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count-1 {
        sum += numbers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the numbers except the last one.
// sumOfButLast([2, 1, 2, 3, 4]) == 9
// sumOfButLast([2, -1, 2, 3, 4]) == 9
func sumOfButLast(numbers: [Int])

func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for i in 1..<strings.count {
        if strings[i].count > longest.count {
            longest = strings[i]
        }
    }
    return longest
}

func sumOfEvens(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] % 2 == 0 {
            sum += numbers[i]
        }
    }
    return sum
}

func sumOfOdds(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] % 2 != 0 {
            sum += numbers[i]
        }
    }
    return sum
}

func sumOfAll(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        sum += numbers[i]
    }
    return sum
}

func sumOfAllButFirst(numbers: [Int]) -> Int {
    var sum = 0
    for i in 1..<numbers.count {
        sum += numbers[i]
    }
    return sum
}

func sumOfAllButLast(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count - 1 {
        sum += numbers[i]
    }
    return sum
}
```swift
// Out of array of strings, return the longest one. Return the first one in case of multiple
// strings of the same length. Return nil in case the input array is empty.
// longest(strings: [] as [String]) == nil
// longest(strings: ["a", "b", "c"]) == "a"
// longest(strings: ["a", "bb", "ccc"]) == "ccc"
func longest(strings: [String]) -> String? {
    if strings.count == 0 {
        return nil
    }
    var longest = strings[0]
    for i in 1..<strings.count {
        if strings[i].count > longest.count {
            longest = strings[i]
        }
    }
    return longest
}

// Given an array of integers, return the sum of all the even numbers.
// sumOfEvens([2, 1, 2, 3, 4]) == 6
// sumOfEvens([3, 4, 5, 6, 7, 8]) == 12
func sumOfEvens(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] % 2 == 0 {
            sum += numbers[i]
        }
    }
    return sum
}

// Given an array of integers, return the sum of all the odd numbers.
// sumOfOdds([2, 1, 2, 3, 4]) == 4
// sumOfOdds([3, 4, 5, 6, 7, 8]) == 16
func sumOfOdds(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        if numbers[i] % 2 != 0 {
            sum += numbers[i]
        }
    }
    return sum
}

// Given an array of integers, return the sum of all the numbers.
// sumOfAll([2, 1, 2, 3, 4]) == 10
// sumOfAll([3, 4, 5, 6, 7, 8]) == 36
func sumOfAll(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count {
        sum += numbers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the numbers except for the first one.
// sumOfAllButFirst([2, 1, 2, 3, 4]) == 10
// sumOfAllButFirst([3, 4, 5, 6, 7, 8]) == 24
func sumOfAllButFirst(numbers: [Int]) -> Int {
    var sum = 0
    for i in 1..<numbers.count {
        sum += numbers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the numbers except for the last one.
// sumOfAllButLast([2, 1, 2, 3, 4]) == 9
// sumOfAllButLast([3, 4, 5, 6, 7, 8]) == 20
func sumOfAllButLast(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count - 1 {
        sum += numbers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the numbers except for the last one.
// sumOfAllButLast([2, 1, 2, 3, 4]) == 9
// sumOfAllButLast([3, 4, 5, 6, 7, 8]) == 20
func sumOfAllButLast(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count - 1 {
        sum += numbers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the numbers except for the last one.
// sumOfAllButLast([2, 1, 2, 3, 4]) == 9
// sumOfAllButLast([3, 4, 5, 6, 7, 8]) == 20
func sumOfAllButLast(numbers: [Int]) -> Int {
    var sum = 0
    for i in 0..<numbers.count - 1 {
        sum += numbers[i]
    }
    return sum
}

// Given an array of integers, return the sum of all the numbers except for the last one.
// sumOfAllButLast([2, 1, 2, 3, 4]) == 9

func greatestCommonDivisor(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let temp = b
        b = a % b
        a = temp
    }
    return a
}

func leastCommonMultiple(a: Int, b: Int) -> Int {
    return (a * b) / greatestCommonDivisor(a: a, b: b)
}

func sumDivisors(number: Int) -> Int {
    var sum = 0
    for i in 1...number {
        if number % i == 0 {
            sum += i
        }
    }
    return sum
}

func sumOfPrimes(number: Int) -> Int {
    var sum = 0
    for i in 1...number {
        if isPrime(number: i) {
            sum += i
        }
    }
    return sum
}
```swift
// Return a greatest common divisor of two integers a and b
// greatestCommonDivisor(a: 3, b: 5) == 1
// greatestCommonDivisor(a: 25, b: 15) == 5
func greatestCommonDivisor(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let temp = b
        b = a % b
        a = temp
    }
    return a
}

// Return a least common multiple of two integers a and b
// leastCommonMultiple(a: 3, b: 5) == 15
// leastCommonMultiple(a: 25, b: 15) == 75
func leastCommonMultiple(a: Int, b: Int) -> Int {
    return (a * b) / greatestCommonDivisor(a: a, b: b)
}

// Return a sum of all divisors of a number
// sumDivisors(12) == 16
// sumDivisors(24) == 30
func sumDivisors(number: Int) -> Int {
    var sum = 0
    for i in 1...number {
        if number % i == 0 {
            sum += i
        }
    }
    return sum
}

// Return a sum of all prime numbers from 1 to a given number
// sumOfPrimes(10) == 17
// sumOfPrimes(20) == 119
func sumOfPrimes(number: Int) -> Int {
    var sum = 0
    for i in 1...number {
        if isPrime(number: i) {
            sum += i
        }
    }
    return sum
}

// Return a sum of all prime numbers from 1 to a given number
// sumOfPrimes(10) == 17
// sumOfPrimes(20) == 119
func sumOfPrimes(number: Int) -> Int {
    var sum = 0
    for i in 1...number {
        if isPrime(number: i) {
            sum += i
        }
    }
    return sum
}

// Return a sum of all prime numbers from 1 to a given number
// sumOfPrimes(10) == 17
// sumOfPrimes(20) == 119
func sumOfPrimes(number: Int) -> Int {
    var sum = 0
    for i in 1...number {
        if isPrime(number: i) {
            sum += i
        }
    }
    return sum
}

// Return a sum of all prime numbers from 1 to a given number
// sumOfPrimes(10) == 17
// sumOfPrimes(20) == 119
func sumOfPrimes(number: Int) -> Int {
    var sum = 0
    for i in 1...number {
        if isPrime(number: i) {
            sum += i
        }
    }
    return sum
}

// Return a sum of all prime numbers from 1 to a given number
// sumOfPrimes(10) == 17
// sumOfPrimes(20) == 119
func sumOfPrimes(number: Int) -> Int {
    var sum = 0
    for i in 1...number {
        if isPrime(number: i) {
            sum += i
        }
    }
    return sum
}

// Return a sum of all prime numbers from 1 to a given number
// sumOfPrimes(10) == 17
// sumOfPrimes(20) == 119
func sumOfPrimes(number: Int) -> Int {
    var sum = 0
    for i in 1...number {
        if isPrime(number: i) {
            sum += i
        }
    }
    return sum
}

// Return a sum of all prime numbers from 1 to a given number
// sumOfPrimes(10) == 17
// sumOfPrimes(20) == 119
func sumOfPrimes(number: Int) -> Int {
    var sum = 0
    for i in 1...number {
        if isPrime(number: i) {
            sum += i
        }
    }
    return sum
}

// Return a sum of all prime numbers from 1 to a given number
// sumOfPrimes(10) == 17
// sumOfPrimes(20) == 119
func sumOfPrimes(number: Int) -> Int {
    var sum = 0
    for i in 1...number {
        if is
if isPrime(number: i) { // cannot find 'isPrime' in scope

func greatestCommonDivisor(a: Int, b: Int) -> Int {
    if b == 0 {
        return a
    } else {
        return greatestCommonDivisor(a: b, b: a % b)
    }
}

func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

func divisorsSum(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if n % i == 0 {
            sum += i
        }
    }
    return sum
}

func properDivisorsSum(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if n % i == 0 && i != n {
            sum += i
        }
    }
    return sum
}
```swift
// Return a greatest common divisor of two integers a and b
// greatestCommonDivisor(a: 3, b: 5) == 1
// greatestCommonDivisor(a: 25, b: 15) == 5
func greatestCommonDivisor(a: Int, b: Int) -> Int {
    if b == 0 {
        return a
    } else {
        return greatestCommonDivisor(a: b, b: a % b)
    }
}

// Return a least common multiple of two integers a and b
// leastCommonMultiple(a: 3, b: 5) == 15
// leastCommonMultiple(a: 25, b: 15) == 60
func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

// Return a sum of all divisors of a given integer n
// divisorsSum(n: 12) == 16
// divisorsSum(n: 6) == 8
// divisorsSum(n: 10) == 16
func divisorsSum(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if n % i == 0 {
            sum += i
        }
    }
    return sum
}

// Return a sum of all proper divisors of a given integer n
// properDivisorsSum(n: 12) == 12
// properDivisorsSum(n: 6) == 6
// properDivisorsSum(n: 10) == 8
func properDivisorsSum(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if n % i == 0 && i != n {
            sum += i
        }
    }
    return sum
}

// Return a sum of all proper divisors of a given integer n
// properDivisorsSum(n: 12) == 12
// properDivisorsSum(n: 6) == 6
// properDivisorsSum(n: 10) == 8
func properDivisorsSum(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if n % i == 0 && i != n {
            sum += i
        }
    }
    return sum
}

// Return a sum of all proper divisors of a given integer n
// properDivisorsSum(n: 12) == 12
// properDivisorsSum(n: 6) == 6
// properDivisorsSum(n: 10) == 8
func properDivisorsSum(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if n % i == 0 && i != n {
            sum += i
        }
    }
    return sum
}

// Return a sum of all proper divisors of a given integer n
// properDivisorsSum(n: 12) == 12
// properDivisorsSum(n: 6) == 6
// properDivisorsSum(n: 10) == 8
func properDivisorsSum(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if n % i == 0 && i != n {
            sum += i
        }
    }
    return sum
}

// Return a sum of all proper divisors of a given integer n
// properDivisorsSum(n: 12) == 12
// properDivisorsSum(n: 6) == 6
// properDivisorsSum(n: 10) == 8
func properDivisorsSum(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if n % i == 0 && i != n {
            sum += i
        }
    }
    return sum
}

// Return a sum of all proper divisors of a given integer n
// properDivisorsSum(n: 12) == 12
// properDivisorsSum(n: 6) == 6
// properDivisorsSum(n: 10) == 8
func properDivisorsSum(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if n % i == 0 && i != n {
            sum += i
        }
    }
    return sum
}

// Return a sum of all proper divisors of

func greatestCommonDivisor(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let temp = b
        b = a % b
        a = temp
    }
    return a
}

func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

func sum(a: Int, b: Int) -> Int {
    return a + b
}

func difference(a: Int, b: Int) -> Int {
    return a - b
}

func product(a: Int, b: Int) -> Int {
    return a * b
}

func quotient(a: Int, b: Int) -> Int {
    return a / b
}

func remainder(a: Int, b: Int) -> Int {
    return a % b
}
```swift
// Return a greatest common divisor of two integers a and b
// greatestCommonDivisor(a: 3, b: 5) == 1
// greatestCommonDivisor(a: 25, b: 15) == 5
func greatestCommonDivisor(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let temp = b
        b = a % b
        a = temp
    }
    return a
}

// Return a least common multiple of two integers a and b
// leastCommonMultiple(a: 3, b: 5) == 15
// leastCommonMultiple(a: 25, b: 15) == 60
func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

// Return a sum of two integers a and b
// sum(a: 3, b: 5) == 8
// sum(a: 25, b: 15) == 40
func sum(a: Int, b: Int) -> Int {
    return a + b
}

// Return a difference of two integers a and b
// difference(a: 3, b: 5) == -2
// difference(a: 25, b: 15) == 10
func difference(a: Int, b: Int) -> Int {
    return a - b
}

// Return a product of two integers a and b
// product(a: 3, b: 5) == 15
// product(a: 25, b: 15) == 375
func product(a: Int, b: Int) -> Int {
    return a * b
}

// Return a quotient of two integers a and b
// quotient(a: 3, b: 5) == 0
// quotient(a: 25, b: 15) == 1
func quotient(a: Int, b: Int) -> Int {
    return a / b
}

// Return a remainder of two integers a and b
// remainder(a: 3, b: 5) == 3
// remainder(a: 25, b: 15) == 0
func remainder(a: Int, b: Int) -> Int {
    return a % b
}

// Return a sum of two integers a and b
// sum(a: 3, b: 5) == 8
// sum(a: 25, b: 15) == 40
func sum(a: Int, b: Int) -> Int {
    return a + b
}

// Return a difference of two integers a and b
// difference(a: 3, b: 5) == -2
// difference(a: 25, b: 15) == 10
func difference(a: Int, b: Int) -> Int {
    return a - b
}

// Return a product of two integers a and b
// product(a: 3, b: 5) == 15
// product(a: 25, b: 15) == 375
func product(a: Int, b: Int) -> Int {
    return a * b
}

// Return a quotient of two integers a and b
// quotient(a: 3, b: 5) == 0
// quotient(a: 25, b: 15) == 1
func quotient(a: Int, b: Int) -> Int {
    return a / b
}

// Return a remainder of two integers a and b
// remainder(a: 3, b: 5) == 3
// remainder(a: 25, b: 15) == 0
func remainder(a: Int, b: Int) -> Int {
    return a % b
}

// Return a sum of two integers a and b
// sum(a: 3, b: 5) == 8
// sum(a: 25, b: 15) == 40
func sum(a: Int, b: Int) -> Int {
    return a + b
}

// Return a difference of two integers a and b
// difference(a: 3, b: 5) == -2
// difference(a: 25, b: 15) == 10
func difference(a: Int, b: Int) -> Int {
    return a - b
}

// Return a product of two integers a and b
// product(a: 3, b: 5) == 15
//

func greatestCommonDivisor(a: Int, b: Int) -> Int {
  if a == 0 {
    return b
  } else if b == 0 {
    return a
  } else {
    return greatestCommonDivisor(a: b, b: a % b)
  }
}

func leastCommonMultiple(a: Int, b: Int) -> Int {
  return a * b / greatestCommonDivisor(a: a, b: b)
}

func sumDivisors(number: Int) -> Int {
  var sum = 0
  for i in 1...number {
    if number % i == 0 {
      sum += i
    }
  }
  return sum
}
```swift
// Return a greatest common divisor of two integers a and b
// greatestCommonDivisor(a: 3, b: 5) == 1
// greatestCommonDivisor(a: 25, b: 15) == 5
func greatestCommonDivisor(a: Int, b: Int) -> Int {
  if a == 0 {
    return b
  } else if b == 0 {
    return a
  } else {
    return greatestCommonDivisor(a: b, b: a % b)
  }
}

// Return a least common multiple of two integers a and b
// leastCommonMultiple(a: 3, b: 5) == 15
// leastCommonMultiple(a: 25, b: 15) == 75
func leastCommonMultiple(a: Int, b: Int) -> Int {
  return a * b / greatestCommonDivisor(a: a, b: b)
}

// Return a sum of all divisors of a number
// sumDivisors(12) == 16
// sumDivisors(13) == 13
// sumDivisors(100) == 100
func sumDivisors(number: Int) -> Int {
  var sum = 0
  for i in 1...number {
    if number % i == 0 {
      sum += i
    }
  }
  return sum
}

// Return a sum of all divisors of a number
// sumDivisors(12) == 16
// sumDivisors(13) == 13
// sumDivisors(100) == 100
func sumDivisors(number: Int) -> Int {
  var sum = 0
  for i in 1...number {
    if number % i == 0 {
      sum += i
    }
  }
  return sum
}

// Return a sum of all divisors of a number
// sumDivisors(12) == 16
// sumDivisors(13) == 13
// sumDivisors(100) == 100
func sumDivisors(number: Int) -> Int {
  var sum = 0
  for i in 1...number {
    if number % i == 0 {
      sum += i
    }
  }
  return sum
}

// Return a sum of all divisors of a number
// sumDivisors(12) == 16
// sumDivisors(13) == 13
// sumDivisors(100) == 100
func sumDivisors(number: Int) -> Int {
  var sum = 0
  for i in 1...number {
    if number % i == 0 {
      sum += i
    }
  }
  return sum
}

// Return a sum of all divisors of a number
// sumDivisors(12) == 16
// sumDivisors(13) == 13
// sumDivisors(100) == 100
func sumDivisors(number: Int) -> Int {
  var sum = 0
  for i in 1...number {
    if number % i == 0 {
      sum += i
    }
  }
  return sum
}

// Return a sum of all divisors of a number
// sumDivisors(12) == 16
// sumDivisors(13) == 13
// sumDivisors(100) == 100
func sumDivisors(number: Int) -> Int {
  var sum = 0
  for i in 1...number {
    if number % i == 0 {
      sum += i
    }
  }
  return sum
}

// Return a sum of all divisors of a number
// sumDivisors(12) == 16
// sumDivisors(13) == 13
// sumDivisors(100) == 100
func sumDivisors(number: Int) -> Int {
  var sum = 0
  for i in 1...number {
    if number % i == 0 {
      sum += i
    }
  }
  return sum
}

// Return a sum of all divisors of a number
// sumDivisors(12) == 16
// sumDivisors(13) == 13
// sumDivisors(100) == 100
func sumDivisors(number: Int) -> Int {
  var sum = 0
  for i in 1...number

func greatestCommonDivisor(a: Int, b: Int) -> Int {
    if a == 0 {
        return b
    } else if b == 0 {
        return a
    } else {
        return greatestCommonDivisor(a: b, b: a % b)
    }
}

func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}
```swift
// Return a greatest common divisor of two integers a and b
// greatestCommonDivisor(a: 3, b: 5) == 1
// greatestCommonDivisor(a: 25, b: 15) == 5
func greatestCommonDivisor(a: Int, b: Int) -> Int {
    if a == 0 {
        return b
    } else if b == 0 {
        return a
    } else {
        return greatestCommonDivisor(a: b, b: a % b)
    }
}

// Return a least common multiple of two integers a and b
// leastCommonMultiple(a: 3, b: 5) == 15
// leastCommonMultiple(a: 25, b: 15) == 60
func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}
<|file_separator|>

func greatestCommonDivisor(a: Int, b: Int) -> Int {
    if b == 0 {
        return a
    } else {
        return greatestCommonDivisor(a: b, b: a % b)
    }
}

func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

func primeNumbers(from: Int, to: Int) -> [Int] {
    var primes = [Int]()
    for i in from...to {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primes.append(i)
        }
    }
    return primes
}

func primeFactors(of number: Int) -> [Int] {
    var factors = [Int]()
    var number = number
    var divisor = 2
    while divisor <= number {
        if number % divisor == 0 {
            factors.append(divisor)
            number /= divisor
        } else {
            divisor += 1
        }
    }
    return factors
}

func perfectNumbers(from: Int, to: Int) -> [Int] {
    var perfectNumbers = [Int]()
    for i in from...to {
        var sum = 0
        for j in 1..<i {
            if i % j == 0 {
                sum += j
            }
        }
        if sum == i {
            perfectNumbers.append(i)
        }
    }
    return perfectNumbers
}

func perfectSquares(from: Int, to: Int) -> [Int] {
    var perfectSquares = [Int]()
    for i in from...to {
        var square = 1
        while square * square <= i {
            if square * square == i {
                perfectSquares.append(i)
                break
            }
            square += 1
        }
    }
    return perfectSquares
}

func perfectCubes(from: Int, to: Int) -> [Int] {
    var perfectCubes = [Int]()
    for i in from...to {
        var cube = 1
        while cube * cube * cube <= i {
            if cube * cube * cube == i {
                perfectCubes.append(i)
                break
            }
            cube += 1
        }
    }
    return perfectCubes
}
```swift
// Return a greatest common divisor of two integers a and b
// greatestCommonDivisor(a: 3, b: 5) == 1
// greatestCommonDivisor(a: 25, b: 15) == 5
func greatestCommonDivisor(a: Int, b: Int) -> Int {
    if b == 0 {
        return a
    } else {
        return greatestCommonDivisor(a: b, b: a % b)
    }
}

// Return a least common multiple of two integers a and b
// leastCommonMultiple(a: 3, b: 5) == 15
// leastCommonMultiple(a: 25, b: 15) == 75
func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

// Return a list of all prime numbers in a given range
// primeNumbers(from: 1, to: 10) == [2, 3, 5, 7]
func primeNumbers(from: Int, to: Int) -> [Int] {
    var primes = [Int]()
    for i in from...to {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primes.append(i)
        }
    }
    return primes
}

// Return a list of all prime factors of a given number
// primeFactors(of: 30) == [2, 3, 5]
func primeFactors(of number: Int) -> [Int] {
    var factors = [Int]()
    var number = number
    var divisor = 2
    while divisor <= number {
        if number % divisor == 0 {
            factors.append(divisor)
            number /= divisor
        } else {
            divisor += 1
        }
    }
    return factors
}

// Return a list of all perfect numbers in a given range
// perfectNumbers(from: 1, to: 1000) == [6, 28, 496]
func perfectNumbers(from: Int, to: Int) -> [Int] {
    var perfectNumbers = [Int]()
    for i in from...to {
        var sum = 0
        for j in 1..<i {
            if i % j == 0 {
                sum += j
            }
        }
        if sum == i {
            perfectNumbers.append(i)
        }
    }
    return perfectNumbers
}

// Return a list of all perfect squares in a given range
// perfectSquares(from: 1, to: 100) == [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]
func perfectSquares(from: Int, to: Int) -> [Int] {
    var perfectSquares = [Int]()
    for i in from...to {
        var square = 1
        while square * square <= i {
            if square * square == i {
                perfectSquares.append(i)
                break
            }
            square += 1
        }
    }
    return perfectSquares
}

// Return a list of all perfect cubes in a given range
// perfectCubes(from: 1, to: 100) == [1, 8, 27, 64, 125, 216, 343, 512, 729, 1000]
func perfectCubes(from: Int, to: Int) -> [Int] {
    var perfectCubes = [Int]()
    for i in from...to {
        var cube = 1
        while cube * cube * cube <= i {
            if cube * cube * cube == i {
                perfectCubes.append(i)
                break
            }
            cube += 1
        }
    }
    return perfectCubes
}

// Return a list of all perfect numbers in a given range
// perfectNumbers(from: 1, to: 1000) == [6, 28, 496]
func perfectNumbers(from: Int, to: Int) -> [Int] {
    var perfectNumbers = [Int]()
    for i in from...to {
        var sum = 0
        for j in 1..<i {
            if i % j == 0 {
                sum += j
            }
        }
        if sum == i {
            perfectNumbers.append(

func greatestCommonDivisor(a: Int, b: Int) -> Int {
  var a = a
  var b = b
  while b != 0 {
    let temp = b
    b = a % b
    a = temp
  }
  return a
}

func leastCommonMultiple(a: Int, b: Int) -> Int {
  return a * b / greatestCommonDivisor(a: a, b: b)
}

func sum(a: Int, b: Int) -> Int {
  return a + b
}

func difference(a: Int, b: Int) -> Int {
  return a - b
}

func product(a: Int, b: Int) -> Int {
  return a * b
}

func quotient(a: Int, b: Int) -> Int {
  return a / b
}

func remainder(a: Int, b: Int) -> Int {
  return a % b
}

func sum(a: [Int], b: [Int]) -> [Int] {
  var result = [Int]()
  for i in 0..<a.count {
    result.append(a[i] + b[i])
  }
  return result
}

func difference(a: [Int], b: [Int]) -> [Int] {
  var result = [Int]()
  for i in 0..<a.count {
    result.append(a[i] - b[i])
  }
  return result
}

func product(a: [Int], b: [Int]) -> [Int] {
  var result = [Int]()
  for i in 0..<a.count {
    result.append(a[i] * b[i])
  }
  return result
}

func quotient(a: [Int], b: [Int]) -> [Int] {
  var result = [Int]()
  for i in 0..<a.count {
    result.append(a[i] / b[i])
  }
  return result
}

func remainder(a: [Int], b: [Int]) -> [Int] {
  var result = [Int]()
  for i in 0..<a.count {
    result.append(a[i] % b[i])
  }
  return result
}
```swift
// Return a greatest common divisor of two integers a and b
// greatestCommonDivisor(a: 3, b: 5) == 1
// greatestCommonDivisor(a: 25, b: 15) == 5
func greatestCommonDivisor(a: Int, b: Int) -> Int {
  var a = a
  var b = b
  while b != 0 {
    let temp = b
    b = a % b
    a = temp
  }
  return a
}

// Return a least common multiple of two integers a and b
// leastCommonMultiple(a: 3, b: 5) == 15
// leastCommonMultiple(a: 25, b: 15) == 75
func leastCommonMultiple(a: Int, b: Int) -> Int {
  return a * b / greatestCommonDivisor(a: a, b: b)
}

// Return a sum of two integers a and b
// sum(a: 3, b: 5) == 8
func sum(a: Int, b: Int) -> Int {
  return a + b
}

// Return a difference of two integers a and b
// difference(a: 3, b: 5) == -2
func difference(a: Int, b: Int) -> Int {
  return a - b
}

// Return a product of two integers a and b
// product(a: 3, b: 5) == 15
func product(a: Int, b: Int) -> Int {
  return a * b
}

// Return a quotient of two integers a and b
// quotient(a: 3, b: 5) == 0
// quotient(a: 25, b: 15) == 1
func quotient(a: Int, b: Int) -> Int {
  return a / b
}

// Return a remainder of two integers a and b
// remainder(a: 3, b: 5) == 3
// remainder(a: 25, b: 15) == 0
func remainder(a: Int, b: Int) -> Int {
  return a % b
}

// Return a sum of two arrays a and b
// sum(a: [1, 2, 3], b: [4, 5, 6]) == [5, 7, 9]
func sum(a: [Int], b: [Int]) -> [Int] {
  var result = [Int]()
  for i in 0..<a.count {
    result.append(a[i] + b[i])
  }
  return result
}

// Return a difference of two arrays a and b
// difference(a: [1, 2, 3], b: [4, 5, 6]) == [-3, -3, -3]
func difference(a: [Int], b: [Int]) -> [Int] {
  var result = [Int]()
  for i in 0..<a.count {
    result.append(a[i] - b[i])
  }
  return result
}

// Return a product of two arrays a and b
// product(a: [1, 2, 3], b: [4, 5, 6]) == [4, 10, 18]
func product(a: [Int], b: [Int]) -> [Int] {
  var result = [Int]()
  for i in 0..<a.count {
    result.append(a[i] * b[i])
  }
  return result
}

// Return a quotient of two arrays a and b
// quotient(a: [1, 2, 3], b: [4, 5, 6]) == [0, 1, 1]
func quotient(a: [Int], b: [Int]) -> [Int] {
  var result = [Int]()
  for i in 0..<a.count {
    result.append(a[i] / b[i])
  }
  return result
}

// Return a remainder of two arrays a and b
// remainder(a: [1, 2, 3], b: [4, 5, 6]) == [1, 2, 3]
func remainder(a: [Int], b: [Int]) -> [Int] {
  var result = [Int]()
  for i in 0..<a.count {
    result.append(a[i] % b[i])
  }
  return result
}

// Return a sum of two arrays a and b
// sum(a: [1, 2, 3], b: [4, 5, 6])

func greatestCommonDivisor(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let temp = b
        b = a % b
        a = temp
    }
    return a
}

func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

func sum(a: Int, b: Int) -> Int {
    return a + b
}

func difference(a: Int, b: Int) -> Int {
    return a - b
}

func product(a: Int, b: Int) -> Int {
    return a * b
}

func quotient(a: Int, b: Int) -> Int {
    return a / b
}

func remainder(a: Int, b: Int) -> Int {
    return a % b
}
```swift
// Return a greatest common divisor of two integers a and b
// greatestCommonDivisor(a: 3, b: 5) == 1
// greatestCommonDivisor(a: 25, b: 15) == 5
func greatestCommonDivisor(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let temp = b
        b = a % b
        a = temp
    }
    return a
}

// Return a least common multiple of two integers a and b
// leastCommonMultiple(a: 3, b: 5) == 15
// leastCommonMultiple(a: 25, b: 15) == 75
func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

// Return a sum of two integers a and b
// sum(a: 3, b: 5) == 8
func sum(a: Int, b: Int) -> Int {
    return a + b
}

// Return a difference between two integers a and b
// difference(a: 3, b: 5) == -2
func difference(a: Int, b: Int) -> Int {
    return a - b
}

// Return a product of two integers a and b
// product(a: 3, b: 5) == 15
func product(a: Int, b: Int) -> Int {
    return a * b
}

// Return a quotient of two integers a and b
// quotient(a: 3, b: 5) == 0
// quotient(a: 25, b: 15) == 1
func quotient(a: Int, b: Int) -> Int {
    return a / b
}

// Return a remainder of two integers a and b
// remainder(a: 3, b: 5) == 3
// remainder(a: 25, b: 15) == 0
func remainder(a: Int, b: Int) -> Int {
    return a % b
}

// Return a sum of two integers a and b
// sum(a: 3, b: 5) == 8
func sum(a: Int, b: Int) -> Int {
    return a + b
}

// Return a difference between two integers a and b
// difference(a: 3, b: 5) == -2
func difference(a: Int, b: Int) -> Int {
    return a - b
}

// Return a product of two integers a and b
// product(a: 3, b: 5) == 15
func product(a: Int, b: Int) -> Int {
    return a * b
}

// Return a quotient of two integers a and b
// quotient(a: 3, b: 5) == 0
// quotient(a: 25, b: 15) == 1
func quotient(a: Int, b: Int) -> Int {
    return a / b
}

// Return a remainder of two integers a and b
// remainder(a: 3, b: 5) == 3
// remainder(a: 25, b: 15) == 0
func remainder(a: Int, b: Int) -> Int {
    return a % b
}

// Return a sum of two integers a and b
// sum(a: 3, b: 5) == 8
func sum(a: Int, b: Int) -> Int {
    return a + b
}

// Return a difference between two integers a and b
// difference(a: 3, b: 5) == -2
func difference(a: Int, b: Int) -> Int {
    return a - b
}

// Return a product of two integers a and b
// product(a: 3, b: 5) == 15
func product(a: Int, b: Int) -> Int {
    return a * b
}

// Return a quotient of two integers a and b
// quotient(a: 3, b: 5) == 0
// quotient(a: 25, b: 15) == 1
func quotient(a: Int, b: Int) -> Int {
    return a / b
}

// Return a remainder of two integers a and b
// remainder(a: 3, b: 5) == 3
// remainder(a: 25, b: 15) == 0
func remainder(a: Int, b: Int) -> Int {
    return a % b
}

func greatestCommonDivisor(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let temp = b
        b = a % b
        a = temp
    }
    return a
}

func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

func primeNumbers(n: Int) -> [Int] {
    var primes = [2]
    var i = 3
    while i <= n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primes.append(i)
        }
        i += 1
    }
    return primes
}
```swift
// Return a greatest common divisor of two integers a and b
// greatestCommonDivisor(a: 3, b: 5) == 1
// greatestCommonDivisor(a: 25, b: 15) == 5
func greatestCommonDivisor(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let temp = b
        b = a % b
        a = temp
    }
    return a
}

// Return a least common multiple of two integers a and b
// leastCommonMultiple(a: 3, b: 5) == 15
// leastCommonMultiple(a: 25, b: 15) == 30
func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

// Return a list of prime numbers from 2 to n
// primeNumbers(n: 10) == [2, 3, 5, 7]
func primeNumbers(n: Int) -> [Int] {
    var primes = [2]
    var i = 3
    while i <= n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primes.append(i)
        }
        i += 1
    }
    return primes
}

// Return a list of prime numbers from 2 to n
// primeNumbers(n: 10) == [2, 3, 5, 7]
func primeNumbers(n: Int) -> [Int] {
    var primes = [2]
    var i = 3
    while i <= n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primes.append(i)
        }
        i += 1
    }
    return primes
}

// Return a list of prime numbers from 2 to n
// primeNumbers(n: 10) == [2, 3, 5, 7]
func primeNumbers(n: Int) -> [Int] {
    var primes = [2]
    var i = 3
    while i <= n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primes.append(i)
        }
        i += 1
    }
    return primes
}

// Return a list of prime numbers from 2 to n
// primeNumbers(n: 10) == [2, 3, 5, 7]
func primeNumbers(n: Int) -> [Int] {
    var primes = [2]
    var i = 3
    while i <= n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primes.append(i)
        }
        i += 1
    }
    return primes
}

// Return a list of prime numbers from 2 to n
// primeNumbers(n: 10) == [2, 3, 5, 7]
func primeNumbers(n: Int) -> [Int] {
    var primes = [2]
    var i = 3
    while i <= n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primes.append(i)
        }
        i += 1
    }
    return primes
}

// Return a list of prime numbers from 2 to n
// primeNumbers(n: 10) == [2, 3, 5, 7]
func primeNumbers(n: Int) -> [Int] {
    var primes = [2]
    var i = 3
    while i <= n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primes.append(i)
        }
        i += 1
    }
    return primes
}

// Return a list of prime

func greatestCommonDivisor(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let t = b
        b = a % b
        a = t
    }
    return a
}

func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

func sum(a: Int, b: Int) -> Int {
    return a + b
}

func difference(a: Int, b: Int) -> Int {
    return a - b
}

func product(a: Int, b: Int) -> Int {
    return a * b
}

func quotient(a: Int, b: Int) -> Int {
    return a / b
}

func remainder(a: Int, b: Int) -> Int {
    return a % b
}
```swift
// Return a greatest common divisor of two integers a and b
// greatestCommonDivisor(a: 3, b: 5) == 1
// greatestCommonDivisor(a: 25, b: 15) == 5
func greatestCommonDivisor(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let t = b
        b = a % b
        a = t
    }
    return a
}

// Return a least common multiple of two integers a and b
// leastCommonMultiple(a: 3, b: 5) == 15
// leastCommonMultiple(a: 25, b: 15) == 75
func leastCommonMultiple(a: Int, b: Int) -> Int {
    return a * b / greatestCommonDivisor(a: a, b: b)
}

// Return a sum of two integers a and b
// sum(a: 3, b: 5) == 8
func sum(a: Int, b: Int) -> Int {
    return a + b
}

// Return a difference of two integers a and b
// difference(a: 3, b: 5) == -2
func difference(a: Int, b: Int) -> Int {
    return a - b
}

// Return a product of two integers a and b
// product(a: 3, b: 5) == 15
func product(a: Int, b: Int) -> Int {
    return a * b
}

// Return a quotient of two integers a and b
// quotient(a: 3, b: 5) == 0
// quotient(a: 25, b: 15) == 1
func quotient(a: Int, b: Int) -> Int {
    return a / b
}

// Return a remainder of two integers a and b
// remainder(a: 3, b: 5) == 3
// remainder(a: 25, b: 15) == 0
func remainder(a: Int, b: Int) -> Int {
    return a % b
}

// Return a sum of two integers a and b
// sum(a: 3, b: 5) == 8
func sum(a: Int, b: Int) -> Int {
    return a + b
}

// Return a difference of two integers a and b
// difference(a: 3, b: 5) == -2
func difference(a: Int, b: Int) -> Int {
    return a - b
}

// Return a product of two integers a and b
// product(a: 3, b: 5) == 15
func product(a: Int, b: Int) -> Int {
    return a * b
}

// Return a quotient of two integers a and b
// quotient(a: 3, b: 5) == 0
// quotient(a: 25, b: 15) == 1
func quotient(a: Int, b: Int) -> Int {
    return a / b
}

// Return a remainder of two integers a and b
// remainder(a: 3, b: 5) == 3
// remainder(a: 25, b: 15) == 0
func remainder(a: Int, b: Int) -> Int {
    return a % b
}

// Return a sum of two integers a and b
// sum(a: 3, b: 5) == 8
func sum(a: Int, b: Int) -> Int {
    return a + b
}

// Return a difference of two integers a and b
// difference(a: 3, b: 5) == -2
func difference(a: Int, b: Int) -> Int {
    return a - b
}

// Return a product of two integers a and b
// product(a: 3, b: 5) == 15
func product(a: Int, b: Int) -> Int {
    return a * b
}

// Return a quotient of two integers a and b
// quotient(a: 3, b: 5) == 0
// quotient(a: 25, b: 15) == 1
func quotient(a: Int, b: Int) -> Int {
    return a / b
}

// Return a remainder of two integers a and b
// remainder(a: 3, b: 5) == 3
// remainder(a: 25, b: 15) == 0
func remainder(a: Int, b: Int) -> Int {
    return a % b
}

func allPrefixes(string: String) -> [String] {
    var prefixes = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i <= j {
                prefixes.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: j)])
            }
        }
    }
    return prefixes
}

func allSuffixes(string: String) -> [String] {
    var suffixes = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i <= j {
                suffixes.append(string[string.index(string.startIndex, offsetBy: i)..<string.index(string.startIndex, offsetBy: j)])
            }
        }
    }
    return suffixes
}

func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i <= j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: j)])
            }
        }
    }
    return permutations
}
```swift
// Return array of all prefixes from shortest to longest of the input string
// allPrefixes(string: "abc") == ["a", "ab", "abc"]
func allPrefixes(string: String) -> [String] {
    var prefixes = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i <= j {
                prefixes.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: j)])
            }
        }
    }
    return prefixes
}

// Return array of all suffixes from shortest to longest of the input string
// allSuffixes(string: "abc") == ["a", "ab", "abc", "bc", "c"]
func allSuffixes(string: String) -> [String] {
    var suffixes = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i <= j {
                suffixes.append(string[string.index(string.startIndex, offsetBy: i)..<string.index(string.startIndex, offsetBy: j)])
            }
        }
    }
    return suffixes
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i <= j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: j)])
            }
        }
    }
    return permutations
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i <= j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: j)])
            }
        }
    }
    return permutations
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i <= j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: j)])
            }
        }
    }
    return permutations
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i <= j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: j)])
            }
        }
    }
    return permutations
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i <= j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: j)])
            }
        }
    }
    return permutations
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i <= j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: j)])
            }
        }
    }
    return permutations
}

// Return array of all
prefixes.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: j)]) // subscript 'subscript(_:)' requires the types 'String.Index' and 'Int' be equivalent
suffixes.append(string[string.index(string.startIndex, offsetBy: i)..<string.index(string.startIndex, offsetBy: j)]) // subscript 'subscript(_:)' requires the types 'String.Index' and 'Int' be equivalent
permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: j)]) // subscript 'subscript(_:)' requires the types 'String.Index' and 'Int' be equivalent

func allPrefixes(string: String) -> [String] {
    var prefixes = [String]()
    for i in 0...string.count {
        prefixes.append(string.substring(to: i))
    }
    return prefixes
}
```swift
// Return array of all prefixes from shortest to longest of the input string
// allPrefixes(string: "abc") == ["a", "ab", "abc"]
func allPrefixes(string: String) -> [String] {
    var prefixes = [String]()
    for i in 0...string.count {
        prefixes.append(string.substring(to: i))
    }
    return prefixes
}
<|file_separator|>
prefixes.append(string.substring(to: i)) // cannot convert value of type 'Int' to expected argument type 'String.Index'

func allPrefixes(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        result.append(string.substring(to: i))
    }
    return result
}

func allSuffixes(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        result.append(string.substring(from: i))
    }
    return result
}

func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        for j in 0...string.count {
            if i != j {
                result.append(string.substring(from: i, to: j))
            }
        }
    }
    return result
}
```swift
// Return array of all prefixes from shortest to longest of the input string
// allPrefixes(string: "abc") == ["a", "ab", "abc"]
func allPrefixes(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        result.append(string.substring(to: i))
    }
    return result
}

// Return array of all suffixes from shortest to longest of the input string
// allSuffixes(string: "abc") == ["a", "ab", "abc"]
func allSuffixes(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        result.append(string.substring(from: i))
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        for j in 0...string.count {
            if i != j {
                result.append(string.substring(from: i, to: j))
            }
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        for j in 0...string.count {
            if i != j {
                result.append(string.substring(from: i, to: j))
            }
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        for j in 0...string.count {
            if i != j {
                result.append(string.substring(from: i, to: j))
            }
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        for j in 0...string.count {
            if i != j {
                result.append(string.substring(from: i, to: j))
            }
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        for j in 0...string.count {
            if i != j {
                result.append(string.substring(from: i, to: j))
            }
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        for j in 0...string.count {
            if i != j {
                result.append(string.substring(from: i, to: j))
            }
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 0...string.count {
        for j in 0...string.count {
            if i != j {
                result.append(string.substring(from: i, to: j))
            }
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc
result.append(string.substring(to: i)) // cannot convert value of type 'Int' to expected argument type 'String.Index'
result.append(string.substring(from: i)) // cannot convert value of type 'Int' to expected argument type 'String.Index'
result.append(string.substring(from: i, to: j)) // extra argument 'to' in call
result.append(string.substring(from: i, to: j)) // cannot convert value of type 'Int' to expected argument type 'String.Index'

func allPrefixes(string: String) -> [String] {
    var prefixes = [String]()
    for i in 0..<string.count {
        prefixes.append(string.substring(to: i))
    }
    return prefixes
}

func allSubstrings(string: String) -> [String] {
    var substrings = [String]()
    for i in 0..<string.count {
        for j in i..<string.count {
            substrings.append(string.substring(from: i, to: j))
        }
    }
    return substrings
}

func allPalindromes(string: String) -> [String] {
    var palindromes = [String]()
    for i in 0..<string.count {
        for j in i..<string.count {
            let substring = string.substring(from: i, to: j)
            if substring == substring.reversed() {
                palindromes.append(substring)
            }
        }
    }
    return palindromes
}
```swift
// Return array of all prefixes from shortest to longest of the input string
// allPrefixes(string: "abc") == ["a", "ab", "abc"]
func allPrefixes(string: String) -> [String] {
    var prefixes = [String]()
    for i in 0..<string.count {
        prefixes.append(string.substring(to: i))
    }
    return prefixes
}

// Return array of all substrings of the input string
// allSubstrings(string: "abc") == ["a", "ab", "abc", "b", "bc", "c"]
func allSubstrings(string: String) -> [String] {
    var substrings = [String]()
    for i in 0..<string.count {
        for j in i..<string.count {
            substrings.append(string.substring(from: i, to: j))
        }
    }
    return substrings
}

// Return array of all substrings of the input string that are palindromes
// allPalindromes(string: "abc") == ["a", "b", "c", "ba", "bc", "ca", "abc", "bac", "bca", "cab", "abba", "abb", "bab", "babc", "babc", "babc", "abba", "abb", "bab", "babc", "babc", "babc"]
func allPalindromes(string: String) -> [String] {
    var palindromes = [String]()
    for i in 0..<string.count {
        for j in i..<string.count {
            let substring = string.substring(from: i, to: j)
            if substring == substring.reversed() {
                palindromes.append(substring)
            }
        }
    }
    return palindromes
}

// Return array of all substrings of the input string that are palindromes
// allPalindromes(string: "abc") == ["a", "b", "c", "ba", "bc", "ca", "abc", "bac", "bca", "cab", "abba", "abb", "bab", "babc", "babc", "babc", "abba", "abb", "bab", "babc", "babc", "babc"]
func allPalindromes(string: String) -> [String] {
    var palindromes = [String]()
    for i in 0..<string.count {
        for j in i..<string.count {
            let substring = string.substring(from: i, to: j)
            if substring == substring.reversed() {
                palindromes.append(substring)
            }
        }
    }
    return palindromes
}

// Return array of all substrings of the input string that are palindromes
// allPalindromes(string: "abc") == ["a", "b", "c", "ba", "bc", "ca", "abc", "bac", "bca", "cab", "abba", "abb", "bab", "babc", "babc", "babc", "abba", "abb", "bab", "babc", "babc", "babc"]
func allPalindromes(string: String) -> [String] {
    var palindromes = [String]()
    for i in 0..<string.count {
        for j in i..<string.count {
            let substring = string.substring(from: i, to: j)
            if substring == substring.reversed() {
                palindromes.append(substring)
            }
        }
    }
    return palindromes
}

// Return array of all substrings of the input string that are palindromes
// allPalindromes(string: "abc") == ["a", "b", "c", "ba", "bc", "ca", "abc", "bac", "bca", "cab", "abba", "abb", "bab", "babc", "babc", "babc", "abba", "abb", "bab", "babc", "babc", "babc"]
func allPalindromes(string: String) -> [String] {
    var palindromes = [String]()
    for i in 0..<string.count {
        for j in i..<string.count {
            let substring = string.substring(from: i, to: j)
            if substring == substring.reversed() {
                palindromes.append(substring)
            }
        }
    }
    return palindromes
}

// Return array of all substrings of the input string that are palindromes
// allPalindromes(string: "abc") == ["a", "b", "c", "
prefixes.append(string.substring(to: i)) // cannot convert value of type 'Int' to expected argument type 'String.Index'
substrings.append(string.substring(from: i, to: j)) // extra argument 'to' in call
substrings.append(string.substring(from: i, to: j)) // cannot convert value of type 'Int' to expected argument type 'String.Index'
let substring = string.substring(from: i, to: j) // extra argument 'to' in call
let substring = string.substring(from: i, to: j) // cannot convert value of type 'Int' to expected argument type 'String.Index'

func allPrefixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.substring(to: i))
    }
    return result
}

func allSuffixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.substring(from: i))
    }
    return result
}

func allSubstrings(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...(string.count - i) {
            result.append(string.substring(from: j, to: j + i))
        }
    }
    return result
}
```swift
// Return array of all prefixes from shortest to longest of the input string
// allPrefixes(string: "abc") == ["a", "ab", "abc"]
func allPrefixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.substring(to: i))
    }
    return result
}

// Return array of all suffixes from shortest to longest of the input string
// allSuffixes(string: "abc") == ["c", "bc", "abc"]
func allSuffixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.substring(from: i))
    }
    return result
}

// Return array of all substrings from shortest to longest of the input string
// allSubstrings(string: "abc") == ["a", "ab", "abc", "b", "bc", "c"]
func allSubstrings(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...(string.count - i) {
            result.append(string.substring(from: j, to: j + i))
        }
    }
    return result
}

// Return array of all substrings from shortest to longest of the input string
// allSubstrings(string: "abc") == ["a", "ab", "abc", "b", "bc", "c"]
func allSubstrings(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...(string.count - i) {
            result.append(string.substring(from: j, to: j + i))
        }
    }
    return result
}

// Return array of all substrings from shortest to longest of the input string
// allSubstrings(string: "abc") == ["a", "ab", "abc", "b", "bc", "c"]
func allSubstrings(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...(string.count - i) {
            result.append(string.substring(from: j, to: j + i))
        }
    }
    return result
}

// Return array of all substrings from shortest to longest of the input string
// allSubstrings(string: "abc") == ["a", "ab", "abc", "b", "bc", "c"]
func allSubstrings(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...(string.count - i) {
            result.append(string.substring(from: j, to: j + i))
        }
    }
    return result
}

// Return array of all substrings from shortest to longest of the input string
// allSubstrings(string: "abc") == ["a", "ab", "abc", "b", "bc", "c"]
func allSubstrings(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...(string.count - i) {
            result.append(string.substring(from: j, to: j + i))
        }
    }
    return result
}

// Return array of all substrings from shortest to longest of the input string
// allSubstrings(string: "abc") == ["a", "ab", "abc", "b", "bc", "c"]
func allSubstrings(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...(string.count - i) {
            result.append(string.substring(from: j, to: j + i))
        }
    }
    return result
}

// Return array of all substrings from shortest to longest of the input string
// allSubstrings(string: "abc") == ["a", "ab", "abc", "b", "bc", "c"]
func allSubstrings(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...(string.count - i) {
            result.append(string.substring(from: j, to: j + i))
        }
result.append(string.substring(to: i)) // cannot convert value of type 'Int' to expected argument type 'String.Index'
result.append(string.substring(from: i)) // cannot convert value of type 'Int' to expected argument type 'String.Index'
result.append(string.substring(from: j, to: j + i)) // extra argument 'to' in call
result.append(string.substring(from: j, to: j + i)) // cannot convert value of type 'Int' to expected argument type 'String.Index'

func allPrefixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.substring(to: i))
    }
    return result
}

func allSuffixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.substring(from: i))
    }
    return result
}

func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 0..<string.count {
        let prefix = string.substring(to: i)
        let suffix = string.substring(from: i)
        result.append(prefix + suffix)
    }
    return result
}

func alphabeticalPermutations(string: String) -> [String] {
    var result = [String]()
    for i in 0..<string.count {
        let prefix = string.substring(to: i)
        let suffix = string.substring(from: i)
        result.append(prefix + suffix)
    }
    return result.sorted()
}
```swift
// Return array of all prefixes from shortest to longest of the input string
// allPrefixes(string: "abc") == ["a", "ab", "abc"]
func allPrefixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.substring(to: i))
    }
    return result
}

// Return array of all suffixes from shortest to longest of the input string
// allSuffixes(string: "abc") == ["a", "ab", "abc"]
func allSuffixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.substring(from: i))
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 0..<string.count {
        let prefix = string.substring(to: i)
        let suffix = string.substring(from: i)
        result.append(prefix + suffix)
    }
    return result
}

// Return array of all permutations of the input string, but in alphabetical order
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func alphabeticalPermutations(string: String) -> [String] {
    var result = [String]()
    for i in 0..<string.count {
        let prefix = string.substring(to: i)
        let suffix = string.substring(from: i)
        result.append(prefix + suffix)
    }
    return result.sorted()
}

// Return array of all permutations of the input string, but in alphabetical order
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func alphabeticalPermutations(string: String) -> [String] {
    var result = [String]()
    for i in 0..<string.count {
        let prefix = string.substring(to: i)
        let suffix = string.substring(from: i)
        result.append(prefix + suffix)
    }
    return result.sorted()
}

// Return array of all permutations of the input string, but in alphabetical order
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func alphabeticalPermutations(string: String) -> [String] {
    var result = [String]()
    for i in 0..<string.count {
        let prefix = string.substring(to: i)
        let suffix = string.substring(from: i)
        result.append(prefix + suffix)
    }
    return result.sorted()
}

// Return array of all permutations of the input string, but in alphabetical order
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func alphabeticalPermutations(string: String) -> [String] {
    var result = [String]()
    for i in 0..<string.count {
        let prefix = string.substring(to: i)
        let suffix = string.substring(from: i)
        result.append(prefix + suffix)
    }
    return result.sorted()
}

// Return array of all permutations of the input string, but in alphabetical order
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func alphabeticalPermutations(string: String) -> [String] {
    var result = [String]()
    for i in 0..<string.count {
        let prefix = string.substring(to: i)
        let suffix = string.substring(from: i)
        result.append(prefix + suffix)
    }
    return result.sorted()
}

// Return array of all permutations of the input string, but in alphabetical order
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func alphabeticalPermutations(string: String) -> [String] {
    var result = [String]()
    for i in 0..<string.count {
        let prefix = string.substring(to: i)
        let suffix = string.substring(from: i)
        result.append(prefix + suffix)
    }
    return result.sorted()
}

// Return array of all permutations of
result.append(string.substring(to: i)) // cannot convert value of type 'Int' to expected argument type 'String.Index'
result.append(string.substring(from: i)) // cannot convert value of type 'Int' to expected argument type 'String.Index'
let prefix = string.substring(to: i) // cannot convert value of type 'Int' to expected argument type 'String.Index'
let suffix = string.substring(from: i) // cannot convert value of type 'Int' to expected argument type 'String.Index'
let prefix = string.substring(to: i) // cannot convert value of type 'Int' to expected argument type 'String.Index'
let suffix = string.substring(from: i) // cannot convert value of type 'Int' to expected argument type 'String.Index'

func allPrefixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.prefix(i))
    }
    return result
}

func allSuffixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.suffix(i))
    }
    return result
}

func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...string.count - i {
            result.append(string.prefix(j) + string.suffix(i))
        }
    }
    return result
}
```swift
// Return array of all prefixes from shortest to longest of the input string
// allPrefixes(string: "abc") == ["a", "ab", "abc"]
func allPrefixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.prefix(i))
    }
    return result
}

// Return array of all suffixes from shortest to longest of the input string
// allSuffixes(string: "abc") == ["c", "bc", "abc"]
func allSuffixes(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        result.append(string.suffix(i))
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...string.count - i {
            result.append(string.prefix(j) + string.suffix(i))
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...string.count - i {
            result.append(string.prefix(j) + string.suffix(i))
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...string.count - i {
            result.append(string.prefix(j) + string.suffix(i))
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...string.count - i {
            result.append(string.prefix(j) + string.suffix(i))
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...string.count - i {
            result.append(string.prefix(j) + string.suffix(i))
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...string.count - i {
            result.append(string.prefix(j) + string.suffix(i))
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
        for j in 0...string.count - i {
            result.append(string.prefix(j) + string.suffix(i))
        }
    }
    return result
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var result = [String]()
    for i in 1...string.count {
result.append(string.prefix(i)) // no exact matches in call to instance method 'append'
result.append(string.suffix(i)) // no exact matches in call to instance method 'append'
result.append(string.prefix(j) + string.suffix(i)) // binary operator '+' cannot be applied to operands of type 'PrefixSequence<String>' and '[String.Element]' (aka 'Array<Character>')
result.append(string.prefix(j) + string.suffix(i)) // no exact matches in call to instance method 'append'

func allPrefixes(string: String) -> [String] {
    var prefixes = [String]()
    for i in 0...string.count {
        prefixes.append(string.substring(to: i))
    }
    return prefixes
}
```swift
// Return array of all prefixes from shortest to longest of the input string
// allPrefixes(string: "abc") == ["a", "ab", "abc"]
func allPrefixes(string: String) -> [String] {
    var prefixes = [String]()
    for i in 0...string.count {
        prefixes.append(string.substring(to: i))
    }
    return prefixes
}
<|file_separator|>
prefixes.append(string.substring(to: i)) // cannot convert value of type 'Int' to expected argument type 'String.Index'

func allPrefixes(string: String) -> [String] {
    var result = [String]()
    for i in 0..<string.count {
        result.append(string.substring(with: NSRange(location: 0, length: i + 1)))
    }
    return result
}
```swift
// Return array of all prefixes from shortest to longest of the input string
// allPrefixes(string: "abc") == ["a", "ab", "abc"]
func allPrefixes(string: String) -> [String] {
    var result = [String]()
    for i in 0..<string.count {
        result.append(string.substring(with: NSRange(location: 0, length: i + 1)))
    }
    return result
}
<|file_separator|>
result.append(string.substring(with: NSRange(location: 0, length: i + 1))) // cannot convert value of type 'NSRange' (aka '_NSRange') to expected argument type 'Range<String.Index>'

func allPrefixes(string: String) -> [String] {
    var prefixes = [String]()
    for i in 0..<string.count {
        prefixes.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: i+1)])
    }
    return prefixes
}

func allSuffixes(string: String) -> [String] {
    var suffixes = [String]()
    for i in 0..<string.count {
        suffixes.append(string[string.index(string.startIndex, offsetBy: i)..<string.endIndex])
    }
    return suffixes
}

func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i != j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: i+1)] + string[string.index(string.startIndex, offsetBy: j)..<string.endIndex])
            }
        }
    }
    return permutations
}
```swift
// Return array of all prefixes from shortest to longest of the input string
// allPrefixes(string: "abc") == ["a", "ab", "abc"]
func allPrefixes(string: String) -> [String] {
    var prefixes = [String]()
    for i in 0..<string.count {
        prefixes.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: i+1)])
    }
    return prefixes
}

// Return array of all suffixes from shortest to longest of the input string
// allSuffixes(string: "abc") == ["abc", "bc", "c"]
func allSuffixes(string: String) -> [String] {
    var suffixes = [String]()
    for i in 0..<string.count {
        suffixes.append(string[string.index(string.startIndex, offsetBy: i)..<string.endIndex])
    }
    return suffixes
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i != j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: i+1)] + string[string.index(string.startIndex, offsetBy: j)..<string.endIndex])
            }
        }
    }
    return permutations
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i != j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: i+1)] + string[string.index(string.startIndex, offsetBy: j)..<string.endIndex])
            }
        }
    }
    return permutations
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i != j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: i+1)] + string[string.index(string.startIndex, offsetBy: j)..<string.endIndex])
            }
        }
    }
    return permutations
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i != j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: i+1)] + string[string.index(string.startIndex, offsetBy: j)..<string.endIndex])
            }
        }
    }
    return permutations
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            if i != j {
                permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: i+1)] + string[string.index(string.startIndex, offsetBy: j)..<string.endIndex])
            }
        }
    }
    return permutations
}

// Return array of all permutations of the input string
// permutations(string: "abc") == ["abc", "acb", "bac", "bca", "cab", "cba"]
func permutations(string: String) -> [String] {
    var permutations = [String]()
    for i in 0..<string.count {
        for j in 0..<string.count {
            
prefixes.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: i+1)]) // subscript 'subscript(_:)' requires the types 'String.Index' and 'Int' be equivalent
suffixes.append(string[string.index(string.startIndex, offsetBy: i)..<string.endIndex]) // subscript 'subscript(_:)' requires the types 'String.Index' and 'Int' be equivalent
permutations.append(string[string.startIndex..<string.index(string.startIndex, offsetBy: i+1)] + string[string.index(string.startIndex, offsetBy: j)..<string.endIndex]) // subscript 'subscript(_:)' requires the types 'String.Index' and 'Int' be equivalent

func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}
```swift
// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 5) == "5 4
func stringSequence(n: Int) -> String { // invalid redeclaration of 'stringSequence(n:)'

func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}
```swift
// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}
```swift
// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result
 // XCTAssertTrue failed

func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}
```swift
// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result
 // XCTAssertTrue failed

func stringSequence(n: Int) -> String {
  var result = ""
  for i in 0...n {
    result += "\(i) "
  }
  return result
}
```swift
// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
  var result = ""
  for i in 0...n {
    result += "\(i) "
  }
  return result
}

print(stringSequence(n: 5))
<|file_separator|>
 // XCTAssertTrue failed

func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

func stringSequence(n: Int, m: Int) -> String {
    var result = ""
    for i in n...m {
        result += "\(i) "
    }
    return result
}
```swift
// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto 0 inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "5 4 3 2 1 0"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in n...0 {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto m inclusive.
// stringSequence(n: 0, m: 5) == "0 1 2 3 4 5"
// stringSequence(n: 5, m: 0) == "5 4 3 2 1 0"
func stringSequence(n: Int, m: Int) -> String {
    var result = ""
    for i in n...m {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto m inclusive.
// stringSequence(n: 0, m: 5) == "0 1 2 3 4 5"
// stringSequence(n: 5, m: 0) == "5 4 3 2 1 0"
func stringSequence(n: Int, m: Int) -> String {
    var result = ""
    for i in n...m {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto m inclusive.
// stringSequence(n: 0, m: 5) == "0 1 2 3 4 5"
// stringSequence(n: 5, m: 0) == "5 4 3 2 1 0"
func stringSequence(n: Int, m: Int) -> String {
    var result = ""
    for i in n...m {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto m inclusive.
// stringSequence(n: 0, m: 5) == "0 1 2 3 4 5"
// stringSequence(n: 5, m: 0) == "5 4 3 2 1 0"
func stringSequence(n: Int, m: Int) -> String {
    var result = ""
    for i in n...m {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto m inclusive.
// stringSequence(n: 0, m: 5) == "0 1 2 3 4 5"
// stringSequence(n: 5, m: 0) == "5 4 3 2 1 0"
func stringSequence(n: Int, m: Int) -> String {
    var result = ""
    for i in n...m {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto m inclusive.
// stringSequence(n: 0, m: 5) == "0 1 2 3 4 5"
// stringSequence(n: 5, m: 0) == "5 4 3 2 1 0"
func stringSequence(n: Int, m: Int) -> String {
    var result = ""
    for i in n...m {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto m inclusive.
// stringSequence(n: 0, m: 5) == "0 1 2 3 4 5"
// stringSequence(n: 5, m: 0) == "5 4 3 2 1 0"
func stringSequence(n: Int, m: Int) -> String {
    var result = ""
    for i in n...m {
        result += "\(i) "
    }
    return result
}

// Return a string containing space-delimited numbers starting from n upto m inclusive.
// stringSequence
func stringSequence(n: Int) -> String { // invalid redeclaration of 'stringSequence(n:)'

func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}
```swift
// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}
```swift
// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result.trimmingCharacters(in: .whitespaces)
}
```swift
// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result.trimmingCharacters(in: .whitespaces)
}
<|file_separator|>

func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}
```swift
// Return a string containing space-delimited numbers starting from 0 upto n inclusive.
// stringSequence(n: 0) == "0"
// stringSequence(n: 5) == "0 1 2 3 4 5"
func stringSequence(n: Int) -> String {
    var result = ""
    for i in 0...n {
        result += "\(i) "
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}
```swift
// Given a string, find out how many distinct characters (regardless of case) does it consist of
// countDistinctCharacters(string: "xyzXYZ") == 3
// countDistinctCharacters(string: "Jerry") == 4
func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}
<|file_separator|>
 // XCTAssertTrue failed

func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}
```swift
// Given a string, find out how many distinct characters (regardless of case) does it consist of
// countDistinctCharacters(string: "xyzXYZ") == 3
// countDistinctCharacters(string: "Jerry") == 4
func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}
<|file_separator|>
 // XCTAssertTrue failed

func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}
```swift
// Given a string, find out how many distinct characters (regardless of case) does it consist of
// countDistinctCharacters(string: "xyzXYZ") == 3
// countDistinctCharacters(string: "Jerry") == 4
func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}
<|file_separator|>
 // XCTAssertTrue failed

func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}

func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    if word != "" {
        words += 1
    }
    return words
}

func countVowels(string: String) -> Int {
    var vowels = 0
    for character in string {
        if character == "a" || character == "e" || character == "i" || character == "o" || character == "u" {
            vowels += 1
        }
    }
    return vowels
}

func countConsonants(string: String) -> Int {
    var consonants = 0
    for character in string {
        if character == "a" || character == "e" || character == "i" || character == "o" || character == "u" {
            consonants += 1
        } else {
            consonants += 1
        }
    }
    return consonants
}
```swift
// Given a string, find out how many distinct characters (regardless of case) does it consist of
// countDistinctCharacters(string: "xyzXYZ") == 3
// countDistinctCharacters(string: "Jerry") == 4
func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, my name is Jerry") == 3
// countWords(string: "Jerry") == 1
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    if word != "" {
        words += 1
    }
    return words
}

// Given a string, find out how many vowels are in it
// countVowels(string: "Hello, my name is Jerry") == 5
// countVowels(string: "Jerry") == 0
func countVowels(string: String) -> Int {
    var vowels = 0
    for character in string {
        if character == "a" || character == "e" || character == "i" || character == "o" || character == "u" {
            vowels += 1
        }
    }
    return vowels
}

// Given a string, find out how many consonants are in it
// countConsonants(string: "Hello, my name is Jerry") == 11
// countConsonants(string: "Jerry") == 0
func countConsonants(string: String) -> Int {
    var consonants = 0
    for character in string {
        if character == "a" || character == "e" || character == "i" || character == "o" || character == "u" {
            consonants += 1
        } else {
            consonants += 1
        }
    }
    return consonants
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, my name is Jerry") == 3
// countWords(string: "Jerry") == 1
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    if word != "" {
        words += 1
    }
    return words
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, my name is Jerry") == 3
// countWords(string: "Jerry") == 1
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    if word != "" {
        words += 1
    }
    return words
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, my name is Jerry") == 3
// countWords(string: "Jerry") == 1
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    if word != "" {
        words += 1
    }
    return words
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, my name is Jerry") == 3
// countWords(string: "Jerry") == 1
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    if word != "" {
        words += 1
    }
    return words
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, my name is Jerry") == 3
// countWords(string: "Jerry") == 1
func countWords(string: String) -> Int
 // XCTAssertTrue failed

func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}

func countWords(string: String) -> Int {
    let words = string.components(separatedBy: " ")
    return words.count
}

func countVowels(string: String) -> Int {
    let vowels = "aeiou"
    var vowelCount = 0
    for character in string {
        if vowels.contains(character) {
            vowelCount += 1
        }
    }
    return vowelCount
}

func countConsonants(string: String) -> Int {
    let consonants = "bcdfghjklmnpqrstvwxyz"
    var consonantCount = 0
    for character in string {
        if consonants.contains(character) {
            consonantCount += 1
        }
    }
    return consonantCount
}

func countDigits(string: String) -> Int {
    let digits = "0123456789"
    var digitCount = 0
    for character in string {
        if digits.contains(character) {
            digitCount += 1
        }
    }
    return digitCount
}

func countSpaces(string: String) -> Int {
    let spaces = " "
    var spaceCount = 0
    for character in string {
        if spaces.contains(character) {
            spaceCount += 1
        }
    }
    return spaceCount
}

func countCharacters(string: String) -> Int {
    return string.count
}

func countUppercaseCharacters(string: String) -> Int {
    let uppercaseCharacters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    var uppercaseCount = 0
    for character in string {
        if uppercaseCharacters.contains(character) {
            uppercaseCount += 1
        }
    }
    return uppercaseCount
}

func countLowercaseCharacters(string: String) -> Int {
    let lowercaseCharacters = "abcdefghijklmnopqrstuvwxyz"
    var lowercaseCount = 0
    for character in string {
        if lowercaseCharacters.contains(character) {
            lowercaseCount += 1
        }
    }
    return lowercaseCount
}

func countSpecialCharacters(string: String) -> Int {
    let specialCharacters = "!@#$%^&*()_+-=[]{}|;':\",./<>?"
    var specialCount = 0
    for character in string {
        if specialCharacters.contains(character) {
            specialCount += 1
        }
    }
    return specialCount
}
```swift
// Given a string, find out how many distinct characters (regardless of case) does it consist of
// countDistinctCharacters(string: "xyzXYZ") == 3
// countDistinctCharacters(string: "Jerry") == 4
func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}

// Given a string, find out how many words are in it
// countWords(string: "xyzXYZ") == 1
// countWords(string: "Jerry") == 2
func countWords(string: String) -> Int {
    let words = string.components(separatedBy: " ")
    return words.count
}

// Given a string, find out how many vowels are in it
// countVowels(string: "xyzXYZ") == 3
// countVowels(string: "Jerry") == 2
func countVowels(string: String) -> Int {
    let vowels = "aeiou"
    var vowelCount = 0
    for character in string {
        if vowels.contains(character) {
            vowelCount += 1
        }
    }
    return vowelCount
}

// Given a string, find out how many consonants are in it
// countConsonants(string: "xyzXYZ") == 5
// countConsonants(string: "Jerry") == 6
func countConsonants(string: String) -> Int {
    let consonants = "bcdfghjklmnpqrstvwxyz"
    var consonantCount = 0
    for character in string {
        if consonants.contains(character) {
            consonantCount += 1
        }
    }
    return consonantCount
}

// Given a string, find out how many digits are in it
// countDigits(string: "xyzXYZ") == 0
// countDigits(string: "Jerry") == 1
func countDigits(string: String) -> Int {
    let digits = "0123456789"
    var digitCount = 0
    for character in string {
        if digits.contains(character) {
            digitCount += 1
        }
    }
    return digitCount
}

// Given a string, find out how many spaces are in it
// countSpaces(string: "xyzXYZ") == 1
// countSpaces(string: "Jerry") == 0
func countSpaces(string: String) -> Int {
    let spaces = " "
    var spaceCount = 0
    for character in string {
        if spaces.contains(character) {
            spaceCount += 1
        }
    }
    return spaceCount
}

// Given a string, find out how many characters are in it
// countCharacters(string: "xyzXYZ") == 6
// countCharacters(string: "Jerry") == 7
func countCharacters(string: String) -> Int {
    return string.count
}

// Given a string, find out how many uppercase characters are in it
// countUppercaseCharacters(string: "xyzXYZ") == 3
// countUppercaseCharacters(string: "Jerry") == 0
func countUppercaseCharacters(string: String) -> Int {
    let uppercaseCharacters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    var uppercaseCount = 0
    for character in string {
        if uppercaseCharacters.contains(character) {
            uppercaseCount += 1
        }
    }
    return uppercaseCount
}

// Given a string, find out how many lowercase characters are in it
// countLowercaseCharacters(string: "xyzXYZ") == 3
// countLowercaseCharacters(string: "Jerry") == 4
func countLowercaseCharacters(string: String) -> Int {
    let lowercaseCharacters = "abcdefghijklmnopqrstuvwxyz"
    var lowercaseCount = 0
    for character in string {
        if lowercaseCharacters.contains(character) {
            lowercaseCount += 1
        }
    }
    return lowercaseCount
}

// Given a string, find out how many special characters are in it
// countSpecialCharacters(string: "xyzXYZ") == 0
// countSpecialCharacters(string: "Jerry") == 0
func countSpecialCharacters(string: String) -> Int {
    let specialCharacters = "!@#$%^&*()_+-=[]{}|;':\",./<>?"
    var specialCount = 0
    for character in string {
        if specialCharacters.contains(character) {
            specialCount += 1
        }
    }
    return specialCount
}

// Given a string, find out how many words are in it
// countWords(string: "xyzXYZ") == 1
// countWords(string: "Jerry") ==
 // XCTAssertTrue failed

func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}

func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}
```swift
// Given a string, find out how many distinct characters (regardless of case) does it consist of
// countDistinctCharacters(string: "xyzXYZ") == 3
// countDistinctCharacters(string: "Jerry") == 4
func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, world!") == 2
// countWords(string: "Hello, world! Hello, world!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, world!") == 2
// countWords(string: "Hello, world! Hello, world!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, world!") == 2
// countWords(string: "Hello, world! Hello, world!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, world!") == 2
// countWords(string: "Hello, world! Hello, world!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, world!") == 2
// countWords(string: "Hello, world! Hello, world!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, world!") == 2
// countWords(string: "Hello, world! Hello, world!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, world!") == 2
// countWords(string: "Hello, world! Hello, world!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, world!") == 2
// countWords(string: "Hello, world! Hello, world!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many
 // XCTAssertTrue failed

func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}
```swift
// Given a string, find out how many distinct characters (regardless of case) does it consist of
// countDistinctCharacters(string: "xyzXYZ") == 3
// countDistinctCharacters(string: "Jerry") == 4
func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}
<|file_separator|>
 // XCTAssertTrue failed

func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}
```swift
// Given a string, find out how many distinct characters (regardless of case) does it consist of
// countDistinctCharacters(string: "xyzXYZ") == 3
// countDistinctCharacters(string: "Jerry") == 4
func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}
<|file_separator|>
 // XCTAssertTrue failed

func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}

func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}
```swift
// Given a string, find out how many distinct characters (regardless of case) does it consist of
// countDistinctCharacters(string: "xyzXYZ") == 3
// countDistinctCharacters(string: "Jerry") == 4
func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, World!") == 2
// countWords(string: "Hello, World! Hello, World!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, World!") == 2
// countWords(string: "Hello, World! Hello, World!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, World!") == 2
// countWords(string: "Hello, World! Hello, World!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, World!") == 2
// countWords(string: "Hello, World! Hello, World!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, World!") == 2
// countWords(string: "Hello, World! Hello, World!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, World!") == 2
// countWords(string: "Hello, World! Hello, World!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, World!") == 2
// countWords(string: "Hello, World! Hello, World!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many words are in it
// countWords(string: "Hello, World!") == 2
// countWords(string: "Hello, World! Hello, World!") == 3
func countWords(string: String) -> Int {
    var words = 0
    var word = ""
    for character in string {
        if character == " " {
            words += 1
        } else {
            word += String(character)
        }
    }
    return words + 1
}

// Given a string, find out how many
 // XCTAssertTrue failed

func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}

func countWords(string: String) -> Int {
    var words = string.components(separatedBy: " ")
    words.remove(at: words.startIndex)
    return words.count
}

func countVowels(string: String) -> Int {
    var vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for character in string {
        if vowels.contains(String(character).lowercased()) {
            count += 1
        }
    }
    return count
}

func countConsonants(string: String) -> Int {
    var consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"]
    var count = 0
    for character in string {
        if consonants.contains(String(character).lowercased()) {
            count += 1
        }
    }
    return count
}

func countWordsStartingWithVowel(string: String) -> Int {
    var words = string.components(separatedBy: " ")
    words.remove(at: words.startIndex)
    var count = 0
    for word in words {
        if word.first == "a" || word.first == "e" || word.first == "i" || word.first == "o" || word.first == "u" {
            count += 1
        }
    }
    return count
}

func countWordsEndingWithVowel(string: String) -> Int {
    var words = string.components(separatedBy: " ")
    words.remove(at: words.startIndex)
    var count = 0
    for word in words {
        if word.last == "a" || word.last == "e" || word.last == "i" || word.last == "o" || word.last == "u" {
            count += 1
        }
    }
    return count
}

func countWordsContainingVowel(string: String) -> Int {
    var words = string.components(separatedBy: " ")
    words.remove(at: words.startIndex)
    var count = 0
    for word in words {
        if word.contains("a") || word.contains("e") || word.contains("i") || word.contains("o") || word.contains("u") {
            count += 1
        }
    }
    return count
}
```swift
// Given a string, find out how many distinct characters (regardless of case) does it consist of
// countDistinctCharacters(string: "xyzXYZ") == 3
// countDistinctCharacters(string: "Jerry") == 4
func countDistinctCharacters(string: String) -> Int {
    var distinctCharacters = Set<Character>()
    for character in string {
        distinctCharacters.insert(character)
    }
    return distinctCharacters.count
}

// Given a string, find out how many words are in it
// countWords(string: "hello world") == 2
// countWords(string: "hello world, how are you?") == 3
func countWords(string: String) -> Int {
    var words = string.components(separatedBy: " ")
    words.remove(at: words.startIndex)
    return words.count
}

// Given a string, find out how many vowels are in it
// countVowels(string: "hello") == 2
// countVowels(string: "hello world") == 3
func countVowels(string: String) -> Int {
    var vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for character in string {
        if vowels.contains(String(character).lowercased()) {
            count += 1
        }
    }
    return count
}

// Given a string, find out how many consonants are in it
// countConsonants(string: "hello") == 3
// countConsonants(string: "hello world") == 6
func countConsonants(string: String) -> Int {
    var consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"]
    var count = 0
    for character in string {
        if consonants.contains(String(character).lowercased()) {
            count += 1
        }
    }
    return count
}

// Given a string, find out how many words start with a vowel
// countWordsStartingWithVowel(string: "hello world") == 1
// countWordsStartingWithVowel(string: "hello world, how are you?") == 2
func countWordsStartingWithVowel(string: String) -> Int {
    var words = string.components(separatedBy: " ")
    words.remove(at: words.startIndex)
    var count = 0
    for word in words {
        if word.first == "a" || word.first == "e" || word.first == "i" || word.first == "o" || word.first == "u" {
            count += 1
        }
    }
    return count
}

// Given a string, find out how many words end with a vowel
// countWordsEndingWithVowel(string: "hello world") == 1
// countWordsEndingWithVowel(string: "hello world, how are you?") == 2
func countWordsEndingWithVowel(string: String) -> Int {
    var words = string.components(separatedBy: " ")
    words.remove(at: words.startIndex)
    var count = 0
    for word in words {
        if word.last == "a" || word.last == "e" || word.last == "i" || word.last == "o" || word.last == "u" {
            count += 1
        }
    }
    return count
}

// Given a string, find out how many words contain a vowel
// countWordsContainingVowel(string: "hello world") == 1
// countWordsContainingVowel(string: "hello world, how are you?") == 2
func countWordsContainingVowel(string: String) -> Int {
    var words = string.components(separatedBy: " ")
    words.remove(at: words.startIndex)
    var count = 0
    for word in words {
        if word.contains("a") || word.contains("e") || word.contains("i") || word.contains("o") || word.contains("u") {
            count += 1
        }
    }
    return count
}

// Given a string, find out how many words contain a consonant
// countWordsContainingConsonant(string: "hello world") == 1
// countWordsContainingConsonant(string: "hello world, how are you?") == 2
func countWordsContainingConsonant(string: String) -> Int {
    var words = string.components(separatedBy: " ")
    words.remove(at: words
var vowels = ["a", "e", "i", "o", "u"] // variable 'vowels' was never mutated; consider changing to 'let' constant
var consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"] // variable 'consonants' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    var currentNote = ""
    for char in musicString {
        if char == "|" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else if char == "o" {
            currentNote += char
            currentBeat += 4
        } else if char == "." {
            currentNote += char
            currentBeat += 1
        }
        if currentNote == "o" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else if currentNote == "o|" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else if currentNote == ".|" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        }
    }
    return result
}
```swift
// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    var currentNote = ""
    for char in musicString {
        if char == "|" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else if char == "o" {
            currentNote += char
            currentBeat += 4
        } else if char == "." {
            currentNote += char
            currentBeat += 1
        }
        if currentNote == "o" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else if currentNote == "o|" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else if currentNote == ".|" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        }
    }
    return result
}
<|file_separator|>
currentNote += char // cannot convert value of type 'Character' to expected argument type 'String'
currentNote += char // cannot convert value of type 'Character' to expected argument type 'String'

func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentNote = ""
    for char in musicString {
        if char == "o" || char == "o|" {
            if currentNote != "" {
                result.append(parseNote(note: currentNote))
            }
            currentNote = "o"
        } else if char == "." || char == ".|" {
            if currentNote != "" {
                result.append(parseNote(note: currentNote))
            }
            currentNote = "."
        }
    }
    if currentNote != "" {
        result.append(parseNote(note: currentNote))
    }
    return result
}

func parseNote(note: String) -> Int {
    switch note {
    case "o":
        return 4
    case "o|":
        return 2
    case ".":
        return 1
    case ".|":
        return 1
    default:
        return 0
    }
}
```swift
// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentNote = ""
    for char in musicString {
        if char == "o" || char == "o|" {
            if currentNote != "" {
                result.append(parseNote(note: currentNote))
            }
            currentNote = "o"
        } else if char == "." || char == ".|" {
            if currentNote != "" {
                result.append(parseNote(note: currentNote))
            }
            currentNote = "."
        }
    }
    if currentNote != "" {
        result.append(parseNote(note: currentNote))
    }
    return result
}

func parseNote(note: String) -> Int {
    switch note {
    case "o":
        return 4
    case "o|":
        return 2
    case ".":
        return 1
    case ".|":
        return 1
    default:
        return 0
    }
}
<|file_separator|>
if char == "o" || char == "o|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
} else if char == "." || char == ".|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'

func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentNote = ""
    var currentNoteLength = 0
    
    for char in musicString {
        if char == "o" || char == "o|" {
            currentNoteLength += 4
        } else if char == "." || char == ".|" {
            currentNoteLength += 2
        }
        
        if char == "o" || char == "o|" || char == "." || char == ".|" {
            currentNote += String(char)
            if char == "o" || char == "o|" || char == "." || char == ".|" {
                result.append(currentNoteLength)
                currentNoteLength = 0
                currentNote = ""
            }
        }
    }
    
    return result
}
```swift
// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentNote = ""
    var currentNoteLength = 0
    
    for char in musicString {
        if char == "o" || char == "o|" {
            currentNoteLength += 4
        } else if char == "." || char == ".|" {
            currentNoteLength += 2
        }
        
        if char == "o" || char == "o|" || char == "." || char == ".|" {
            currentNote += String(char)
            if char == "o" || char == "o|" || char == "." || char == ".|" {
                result.append(currentNoteLength)
                currentNoteLength = 0
                currentNote = ""
            }
        }
    }
    
    return result
}
<|file_separator|>
if char == "o" || char == "o|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
} else if char == "." || char == ".|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
if char == "o" || char == "o|" || char == "." || char == ".|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
if char == "o" || char == "o|" || char == "." || char == ".|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
if char == "o" || char == "o|" || char == "." || char == ".|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
if char == "o" || char == "o|" || char == "." || char == ".|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'

func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    for char in musicString {
        if char == "o" {
            currentBeat += 4
        } else if char == "o|" {
            currentBeat += 2
        } else if char == ".|" {
            currentBeat += 1
        } else if char == " " {
            result.append(currentBeat)
            currentBeat = 0
        }
    }
    return result
}
```swift
// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    for char in musicString {
        if char == "o" {
            currentBeat += 4
        } else if char == "o|" {
            currentBeat += 2
        } else if char == ".|" {
            currentBeat += 1
        } else if char == " " {
            result.append(currentBeat)
            currentBeat = 0
        }
    }
    return result
}
<|file_separator|>
} else if char == "o|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
} else if char == ".|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'

func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    for char in musicString {
        if char == "o" {
            currentBeat += 4
        } else if char == "o|" {
            currentBeat += 2
        } else if char == ".|" {
            currentBeat += 1
        }
        result.append(currentBeat)
    }
    return result
}
```swift
// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    for char in musicString {
        if char == "o" {
            currentBeat += 4
        } else if char == "o|" {
            currentBeat += 2
        } else if char == ".|" {
            currentBeat += 1
        }
        result.append(currentBeat)
    }
    return result
}
<|file_separator|>
} else if char == "o|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
} else if char == ".|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'

func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    var currentNote = ""
    for char in musicString {
        if char == "o" {
            currentBeat += 4
        } else if char == "o|" {
            currentBeat += 2
        } else if char == ".|" {
            currentBeat += 1
        } else if char == " " {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else {
            currentNote += char
        }
    }
    return result
}
```swift
// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    var currentNote = ""
    for char in musicString {
        if char == "o" {
            currentBeat += 4
        } else if char == "o|" {
            currentBeat += 2
        } else if char == ".|" {
            currentBeat += 1
        } else if char == " " {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else {
            currentNote += char
        }
    }
    return result
}
<|file_separator|>
} else if char == "o|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
} else if char == ".|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
currentNote += char // cannot convert value of type 'Character' to expected argument type 'String'

func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    var currentNote = ""
    for char in musicString {
        if char == "|" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else {
            currentNote += String(char)
            currentBeat += 1
        }
    }
    result.append(currentBeat)
    return result
}
```swift
// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    var currentNote = ""
    for char in musicString {
        if char == "|" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else {
            currentNote += String(char)
            currentBeat += 1
        }
    }
    result.append(currentBeat)
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentNote = ""
    var currentNoteLength = 0
    for char in musicString {
        if char == "o" || char == "o|" {
            currentNote = "whole"
            currentNoteLength = 4
        } else if char == "." || char == ".|" {
            currentNote = "half"
            currentNoteLength = 2
        } else if char == "|" {
            result.append(currentNoteLength)
            currentNoteLength = 0
        }
    }
    return result
}
```swift
// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentNote = ""
    var currentNoteLength = 0
    for char in musicString {
        if char == "o" || char == "o|" {
            currentNote = "whole"
            currentNoteLength = 4
        } else if char == "." || char == ".|" {
            currentNote = "half"
            currentNoteLength = 2
        } else if char == "|" {
            result.append(currentNoteLength)
            currentNoteLength = 0
        }
    }
    return result
}
<|file_separator|>
if char == "o" || char == "o|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
} else if char == "." || char == ".|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'

func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    var currentNote = ""
    for char in musicString {
        if char == "o" {
            currentBeat += 4
            currentNote = ""
        } else if char == "o|" {
            currentBeat += 2
            currentNote = ""
        } else if char == ".|" {
            currentBeat += 1
            currentNote = ""
        } else if char == "|" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else {
            currentNote += String(char)
        }
    }
    result.append(currentBeat)
    return result
}
```swift
// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    var result = [Int]()
    var currentBeat = 0
    var currentNote = ""
    for char in musicString {
        if char == "o" {
            currentBeat += 4
            currentNote = ""
        } else if char == "o|" {
            currentBeat += 2
            currentNote = ""
        } else if char == ".|" {
            currentBeat += 1
            currentNote = ""
        } else if char == "|" {
            result.append(currentBeat)
            currentBeat = 0
            currentNote = ""
        } else {
            currentNote += String(char)
        }
    }
    result.append(currentBeat)
    return result
}
<|file_separator|>
} else if char == "o|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'
} else if char == ".|" { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'

func parseMusic(musicString: String) -> [Int] {
    let notes = musicString.split(separator: " ")
    var result = [Int]()
    for note in notes {
        switch note {
        case "o":
            result.append(4)
        case "o|":
            result.append(2)
        case ".|":
            result.append(1)
        default:
            result.append(1)
        }
    }
    return result
}
```swift
// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    let notes = musicString.split(separator: " ")
    var result = [Int]()
    for note in notes {
        switch note {
        case "o":
            result.append(4)
        case "o|":
            result.append(2)
        case ".|":
            result.append(1)
        default:
            result.append(1)
        }
    }
    return result
}

// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    let notes = musicString.split(separator: " ")
    var result = [Int]()
    for note in notes {
        switch note {
        case "o":
            result.append(4)
        case "o|":
            result.append(2)
        case ".|":
            result.append(1)
        default:
            result.append(1)
        }
    }
    return result
}

// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    let notes = musicString.split(separator: " ")
    var result = [Int]()
    for note in notes {
        switch note {
        case "o":
            result.append(4)
        case "o|":
            result.append(2)
        case ".|":
            result.append(1)
        default:
            result.append(1)
        }
    }
    return result
}

// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1, 2, 2, 1, 1, 1, 1, 4, 4]
func parseMusic(musicString: String) -> [Int] {
    let notes = musicString.split(separator: " ")
    var result = [Int]()
    for note in notes {
        switch note {
        case "o":
            result.append(4)
        case "o|":
            result.append(2)
        case ".|":
            result.append(1)
        default:
            result.append(1)
        }
    }
    return result
}

// Input to this function is a string representing musical notes in a special ASCII format.
// Your task is to parse this string and return array of integers corresponding to how many beats does each
// not last.
// Here is a legend:
// 'o' - whole note, lasts four beats
// 'o|' - half note, lasts two beats
// '.|' - quater note, lasts one beat
// parseMusic(musicString: "o o| .| o| o| .| .| .| .| o o") == [4, 2, 1

func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        if string.substring(with: index..<index + substring.count) == substring {
            count += 1
        }
        index += 1
    }
    return count
}
```swift
// Find how many times a given substring can be found in the original string. Count overlaping cases.
// howManyTimes(string: "", substring: "a") == 0
// howManyTimes(string: "aaa", substring: "a") == 3
// howManyTimes(string: "aaaa", substring: "aa") == 3
func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        if string.substring(with: index..<index + substring.count) == substring {
            count += 1
        }
        index += 1
    }
    return count
}
<|file_separator|>```
if string.substring(with: index..<index + substring.count) == substring { // cannot convert value of type 'Int' to expected argument type 'String.Index'
if string.substring(with: index..<index + substring.count) == substring { // cannot convert value of type 'Int' to expected argument type 'String.Index'

func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        if string.substring(with: index..<index + substring.count) == substring {
            count += 1
            index += substring.count
        } else {
            index += 1
        }
    }
    return count
}
```swift
// Find how many times a given substring can be found in the original string. Count overlaping cases.
// howManyTimes(string: "", substring: "a") == 0
// howManyTimes(string: "aaa", substring: "a") == 3
// howManyTimes(string: "aaaa", substring: "aa") == 3
func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        if string.substring(with: index..<index + substring.count) == substring {
            count += 1
            index += substring.count
        } else {
            index += 1
        }
    }
    return count
}
<|file_separator|>
if string.substring(with: index..<index + substring.count) == substring { // cannot convert value of type 'Int' to expected argument type 'String.Index'
if string.substring(with: index..<index + substring.count) == substring { // cannot convert value of type 'Int' to expected argument type 'String.Index'

func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        if string.substring(with: index..<index + substring.count) == substring {
            count += 1
        }
        index += 1
    }
    return count
}
```swift
// Find how many times a given substring can be found in the original string. Count overlaping cases.
// howManyTimes(string: "", substring: "a") == 0
// howManyTimes(string: "aaa", substring: "a") == 3
// howManyTimes(string: "aaaa", substring: "aa") == 3
func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        if string.substring(with: index..<index + substring.count) == substring {
            count += 1
        }
        index += 1
    }
    return count
}
<|file_separator|>```
if string.substring(with: index..<index + substring.count) == substring { // cannot convert value of type 'Int' to expected argument type 'String.Index'
if string.substring(with: index..<index + substring.count) == substring { // cannot convert value of type 'Int' to expected argument type 'String.Index'

func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        if string.substring(with: index..<index+substring.count) == substring {
            count += 1
            index += substring.count
        } else {
            index += 1
        }
    }
    return count
}
```swift
// Find how many times a given substring can be found in the original string. Count overlaping cases.
// howManyTimes(string: "", substring: "a") == 0
// howManyTimes(string: "aaa", substring: "a") == 3
// howManyTimes(string: "aaaa", substring: "aa") == 3
func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        if string.substring(with: index..<index+substring.count) == substring {
            count += 1
            index += substring.count
        } else {
            index += 1
        }
    }
    return count
}
<|file_separator|>```
if string.substring(with: index..<index+substring.count) == substring { // cannot convert value of type 'Int' to expected argument type 'String.Index'
if string.substring(with: index..<index+substring.count) == substring { // cannot convert value of type 'Int' to expected argument type 'String.Index'

func howManyTimes(string: String, substring: String) -> Int {
    let substringLength = substring.count
    var count = 0
    for i in 0 ..< string.count - substringLength + 1 {
        let substringIndex = string.index(string.startIndex, offsetBy: i)
        let substringRange = substringIndex ..< substringIndex + substringLength
        if substring == String(string[substringRange]) {
            count += 1
        }
    }
    return count
}
```swift
// Find how many times a given substring can be found in the original string. Count overlaping cases.
// howManyTimes(string: "", substring: "a") == 0
// howManyTimes(string: "aaa", substring: "a") == 3
// howManyTimes(string: "aaaa", substring: "aa") == 3
func howManyTimes(string: String, substring: String) -> Int {
    let substringLength = substring.count
    var count = 0
    for i in 0 ..< string.count - substringLength + 1 {
        let substringIndex = string.index(string.startIndex, offsetBy: i)
        let substringRange = substringIndex ..< substringIndex + substringLength
        if substring == String(string[substringRange]) {
            count += 1
        }
    }
    return count
}
<|file_separator|>
let substringRange = substringIndex ..< substringIndex + substringLength // binary operator '+' cannot be applied to operands of type 'String.Index' and 'Int'

func howManyTimes(string: String, substring: String) -> Int {
    let stringArray = string.map { String($0) }
    let substringArray = substring.map { String($0) }
    var count = 0
    var index = 0
    while index < stringArray.count {
        if stringArray[index] == substringArray[0] {
            if stringArray[index..<index+substringArray.count] == substringArray {
                count += 1
            }
        }
        index += 1
    }
    return count
}

func longestCommonPrefix(string1: String, string2: String) -> String {
    let string1Array = string1.map { String($0) }
    let string2Array = string2.map { String($0) }
    var prefix = ""
    var index = 0
    while index < string1Array.count && index < string2Array.count {
        if string1Array[index] == string2Array[index] {
            prefix += string1Array[index]
        } else {
            break
        }
        index += 1
    }
    return prefix
}

func longestCommonSuffix(string1: String, string2: String) -> String {
    let string1Array = string1.map { String($0) }
    let string2Array = string2.map { String($0) }
    var suffix = ""
    var index = 0
    while index < string1Array.count && index < string2Array.count {
        if string1Array[string1Array.count-1-index] == string2Array[string2Array.count-1-index] {
            suffix += string1Array[string1Array.count-1-index]
        } else {
            break
        }
        index += 1
    }
    return suffix
}

func longestCommonSubstring(string1: String, string2: String) -> String {
    let string1Array = string1.map { String($0) }
    let string2Array = string2.map { String($0) }
    var longestCommonSubstring = ""
    var index = 0
    while index < string1Array.count {
        var substring = ""
        var substringIndex = index
        while substringIndex < string1Array.count {
            if string1Array[substringIndex] == string2Array[substringIndex] {
                substring += string1Array[substringIndex]
            } else {
                break
            }
            substringIndex += 1
        }
        if substring.count > longestCommonSubstring.count {
            longestCommonSubstring = substring
        }
        index += 1
    }
    return longestCommonSubstring
}
```swift
// Find how many times a given substring can be found in the original string. Count overlaping cases.
// howManyTimes(string: "", substring: "a") == 0
// howManyTimes(string: "aaa", substring: "a") == 3
// howManyTimes(string: "aaaa", substring: "aa") == 3
func howManyTimes(string: String, substring: String) -> Int {
    let stringArray = string.map { String($0) }
    let substringArray = substring.map { String($0) }
    var count = 0
    var index = 0
    while index < stringArray.count {
        if stringArray[index] == substringArray[0] {
            if stringArray[index..<index+substringArray.count] == substringArray {
                count += 1
            }
        }
        index += 1
    }
    return count
}

// Find the longest common prefix of two strings.
// longestCommonPrefix(string1: "abc", string2: "abcd") == "ab"
// longestCommonPrefix(string1: "abc", string2: "ab") == "ab"
// longestCommonPrefix(string1: "abc", string2: "ac") == ""
func longestCommonPrefix(string1: String, string2: String) -> String {
    let string1Array = string1.map { String($0) }
    let string2Array = string2.map { String($0) }
    var prefix = ""
    var index = 0
    while index < string1Array.count && index < string2Array.count {
        if string1Array[index] == string2Array[index] {
            prefix += string1Array[index]
        } else {
            break
        }
        index += 1
    }
    return prefix
}

// Find the longest common suffix of two strings.
// longestCommonSuffix(string1: "abc", string2: "abcd") == "cd"
// longestCommonSuffix(string1: "abc", string2: "ab") == "b"
// longestCommonSuffix(string1: "abc", string2: "ac") == ""
func longestCommonSuffix(string1: String, string2: String) -> String {
    let string1Array = string1.map { String($0) }
    let string2Array = string2.map { String($0) }
    var suffix = ""
    var index = 0
    while index < string1Array.count && index < string2Array.count {
        if string1Array[string1Array.count-1-index] == string2Array[string2Array.count-1-index] {
            suffix += string1Array[string1Array.count-1-index]
        } else {
            break
        }
        index += 1
    }
    return suffix
}

// Find the longest common substring of two strings.
// longestCommonSubstring(string1: "abc", string2: "abcd") == "cd"
// longestCommonSubstring(string1: "abc", string2: "ab") == "ab"
// longestCommonSubstring(string1: "abc", string2: "ac") == ""
func longestCommonSubstring(string1: String, string2: String) -> String {
    let string1Array = string1.map { String($0) }
    let string2Array = string2.map { String($0) }
    var longestCommonSubstring = ""
    var index = 0
    while index < string1Array.count {
        var substring = ""
        var substringIndex = index
        while substringIndex < string1Array.count {
            if string1Array[substringIndex] == string2Array[substringIndex] {
                substring += string1Array[substringIndex]
            } else {
                break
            }
            substringIndex += 1
        }
        if substring.count > longestCommonSubstring.count {
            longestCommonSubstring = substring
        }
        index += 1
    }
    return longestCommonSubstring
}

// Find the longest common substring of two strings.
// longestCommonSubstring(string1: "abc", string2: "abcd") == "cd"
// longestCommonSubstring(string1: "abc", string2: "ab") == "ab"
// longestCommonSubstring(string1: "abc", string2: "ac") == ""
func longestCommonSubstring(string1: String, string2: String) -> String {
    let string1Array = string1.map { String($0) }
    let string2Array = string2.map { String($0) }
    var longestCommonSubstring = ""
    var index = 0
    while index < string1Array.count {
        var substring = ""
        var substringIndex = index
        while substringIndex < string1Array.count {
            if string1Array[substringIndex]
if stringArray[index..<index+substringArray.count] == substringArray { // cannot convert value of type '[String]' to expected argument type 'ArraySlice<String>'

func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        let substringIndex = string.index(string.startIndex, offsetBy: index)
        let substringEndIndex = string.index(string.startIndex, offsetBy: index + substring.count)
        let substringRange = substringIndex..<substringEndIndex
        let substring = String(string[substringRange])
        if substring == substring {
            count += 1
            index += substring.count
        } else {
            index += 1
        }
    }
    return count
}
```swift
// Find how many times a given substring can be found in the original string. Count overlaping cases.
// howManyTimes(string: "", substring: "a") == 0
// howManyTimes(string: "aaa", substring: "a") == 3
// howManyTimes(string: "aaaa", substring: "aa") == 3
func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        let substringIndex = string.index(string.startIndex, offsetBy: index)
        let substringEndIndex = string.index(string.startIndex, offsetBy: index + substring.count)
        let substringRange = substringIndex..<substringEndIndex
        let substring = String(string[substringRange])
        if substring == substring {
            count += 1
            index += substring.count
        } else {
            index += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        let startIndex = string.index(string.startIndex, offsetBy: index)
        let endIndex = string.index(string.startIndex, offsetBy: index + substring.count)
        let substringRange = startIndex..<endIndex
        if string.substring(with: substringRange) == substring {
            count += 1
        }
        index += 1
    }
    return count
}
```swift
// Find how many times a given substring can be found in the original string. Count overlaping cases.
// howManyTimes(string: "", substring: "a") == 0
// howManyTimes(string: "aaa", substring: "a") == 3
// howManyTimes(string: "aaaa", substring: "aa") == 3
func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        let startIndex = string.index(string.startIndex, offsetBy: index)
        let endIndex = string.index(string.startIndex, offsetBy: index + substring.count)
        let substringRange = startIndex..<endIndex
        if string.substring(with: substringRange) == substring {
            count += 1
        }
        index += 1
    }
    return count
}
<|file_separator|>
if string.substring(with: substringRange) == substring { // 'substring(with:)' is deprecated: Please use String slicing subscript.
 // Fatal error: String index is out of bounds

func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        let range = string.index(string.startIndex, offsetBy: index)..<string.index(string.startIndex, offsetBy: index + substring.count)
        if string[range] == substring {
            count += 1
            index += substring.count
        } else {
            index += 1
        }
    }
    return count
}
```swift
// Find how many times a given substring can be found in the original string. Count overlaping cases.
// howManyTimes(string: "", substring: "a") == 0
// howManyTimes(string: "aaa", substring: "a") == 3
// howManyTimes(string: "aaaa", substring: "aa") == 3
func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        let range = string.index(string.startIndex, offsetBy: index)..<string.index(string.startIndex, offsetBy: index + substring.count)
        if string[range] == substring {
            count += 1
            index += substring.count
        } else {
            index += 1
        }
    }
    return count
}
<|file_separator|>```
 // Fatal error: String index is out of bounds

func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        let startIndex = string.index(string.startIndex, offsetBy: index)
        let endIndex = string.index(string.startIndex, offsetBy: index + substring.count)
        let range = startIndex..<endIndex
        if string.substring(with: range) == substring {
            count += 1
        }
        index += 1
    }
    return count
}
```swift
// Find how many times a given substring can be found in the original string. Count overlaping cases.
// howManyTimes(string: "", substring: "a") == 0
// howManyTimes(string: "aaa", substring: "a") == 3
// howManyTimes(string: "aaaa", substring: "aa") == 3
func howManyTimes(string: String, substring: String) -> Int {
    var count = 0
    var index = 0
    while index < string.count {
        let startIndex = string.index(string.startIndex, offsetBy: index)
        let endIndex = string.index(string.startIndex, offsetBy: index + substring.count)
        let range = startIndex..<endIndex
        if string.substring(with: range) == substring {
            count += 1
        }
        index += 1
    }
    return count
}
<|file_separator|>
if string.substring(with: range) == substring { // 'substring(with:)' is deprecated: Please use String slicing subscript.
 // Fatal error: String index is out of bounds

func sortNumbers(numbers: String) -> String {
    let numbers = numbers.split(separator: " ")
    let numbers = numbers.map { Int($0)! }
    let numbers = numbers.sorted()
    return numbers.map { String($0) }.joined(separator: " ")
}
```swift
// Input is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "three one five") == "one three five"
func sortNumbers(numbers: String) -> String {
    let numbers = numbers.split(separator: " ")
    let numbers = numbers.map { Int($0)! }
    let numbers = numbers.sorted()
    return numbers.map { String($0) }.joined(separator: " ")
}
<|file_separator|>
let numbers = numbers.map { Int($0)! } // invalid redeclaration of 'numbers'

func sortNumbers(numbers: String) -> String {
    let numbers = numbers.split(separator: " ")
    let numbers = numbers.map { Int($0)! }
    let numbers = numbers.sorted()
    return numbers.map { String($0) }.joined(separator: " ")
}
```swift
// Input is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "three one five") == "one three five"
func sortNumbers(numbers: String) -> String {
    let numbers = numbers.split(separator: " ")
    let numbers = numbers.map { Int($0)! }
    let numbers = numbers.sorted()
    return numbers.map { String($0) }.joined(separator: " ")
}
<|file_separator|>
let numbers = numbers.map { Int($0)! } // invalid redeclaration of 'numbers'

func sortNumbers(numbers: String) -> String {
    let numbers = numbers.components(separatedBy: " ")
    let numbers = numbers.map { Int($0)! }
    let sorted = numbers.sorted()
    return sorted.map { String($0) }.joined(separator: " ")
}
```swift
// Input is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "three one five") == "one three five"
func sortNumbers(numbers: String) -> String {
    let numbers = numbers.components(separatedBy: " ")
    let numbers = numbers.map { Int($0)! }
    let sorted = numbers.sorted()
    return sorted.map { String($0) }.joined(separator: " ")
}
<|file_separator|>
let numbers = numbers.map { Int($0)! } // invalid redeclaration of 'numbers'

func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort()
    return sortedNumbers.joined(separator: " ")
}

func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort { $0 > $1 }
    return sortedNumbers.joined(separator: " ")
}

func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}
```swift
// Input is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "three one five") == "one three five"
func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort()
    return sortedNumbers.joined(separator: " ")
}

// Input is a string of numbers separated by spaces.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "3 1 5") == "1 3 5"
func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort()
    return sortedNumbers.joined(separator: " ")
}

// Input is a string of numbers separated by spaces.
// Return the string with numbers sorted from largest to smallest
// sortNumbers(numbers: "3 1 5") == "5 3 1"
func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort { $0 > $1 }
    return sortedNumbers.joined(separator: " ")
}

// Input is a string of numbers separated by spaces.
// Return the string with numbers sorted from largest to smallest
// sortNumbers(numbers: "3 1 5") == "5 3 1"
func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}

// Input is a string of numbers separated by spaces.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "3 1 5") == "1 3 5"
func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}

// Input is a string of numbers separated by spaces.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "3 1 5") == "1 3 5"
func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}

// Input is a string of numbers separated by spaces.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "3 1 5") == "1 3 5"
func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}

// Input is a string of numbers separated by spaces.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "3 1 5") == "1 3 5"
func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}

// Input is a string of numbers separated by spaces.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "3 1 5") == "1 3 5"
func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}

// Input is a string of numbers separated by spaces.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "3 1 5") == "1 3 5"
func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}

// Input is a string of numbers separated by spaces.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "3 1 5") == "1 3 5"
func sortNumbers(numbers: String) -> String {
    var sortedNumbers = numbers.components(separatedBy: " ")
    sortedNumbers.sort { $0 < $1 }
    return sortedNumbers.joined(
func sortNumbers(numbers: String) -> String { // invalid redeclaration of 'sortNumbers(numbers:)'
func sortNumbers(numbers: String) -> String { // invalid redeclaration of 'sortNumbers(numbers:)'

func sortNumbers(numbers: String) -> String {
    let numbersArray = numbers.components(separatedBy: " ")
    var sortedNumbersArray = numbersArray.sorted()
    var sortedNumbersString = ""
    
    for number in sortedNumbersArray {
        sortedNumbersString += number + " "
    }
    
    return sortedNumbersString.trimmingCharacters(in: .whitespaces)
}
```swift
// Input is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "three one five") == "one three five"
func sortNumbers(numbers: String) -> String {
    let numbersArray = numbers.components(separatedBy: " ")
    var sortedNumbersArray = numbersArray.sorted()
    var sortedNumbersString = ""
    
    for number in sortedNumbersArray {
        sortedNumbersString += number + " "
    }
    
    return sortedNumbersString.trimmingCharacters(in: .whitespaces)
}
<|file_separator|>
var sortedNumbersArray = numbersArray.sorted() // variable 'sortedNumbersArray' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func sortNumbers(numbers: String) -> String {
    let numbers = numbers.split(separator: " ").map { Int($0)! }
    return numbers.sorted().map { String($0) }.joined(separator: " ")
}

func sumNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(0, +).description
}

func productNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(1, *)
}
```swift
// Input is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "three one five") == "one three five"
func sortNumbers(numbers: String) -> String {
    let numbers = numbers.split(separator: " ").map { Int($0)! }
    return numbers.sorted().map { String($0) }.joined(separator: " ")
}

// Input is a string of numbers separated by spaces.
// Return the sum of the numbers as a string.
// sumNumbers("1 2 3") == "6"
func sumNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(0, +).description
}

// Input is a string of numbers separated by spaces.
// Return the product of the numbers as a string.
// productNumbers("1 2 3") == "6"
func productNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(1, *)
}

// Input is a string of numbers separated by spaces.
// Return the sum of the numbers as a string.
// sumNumbers("1 2 3") == "6"
func sumNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(0, +).description
}

// Input is a string of numbers separated by spaces.
// Return the product of the numbers as a string.
// productNumbers("1 2 3") == "6"
func productNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(1, *)
}

// Input is a string of numbers separated by spaces.
// Return the sum of the numbers as a string.
// sumNumbers("1 2 3") == "6"
func sumNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(0, +).description
}

// Input is a string of numbers separated by spaces.
// Return the product of the numbers as a string.
// productNumbers("1 2 3") == "6"
func productNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(1, *)
}

// Input is a string of numbers separated by spaces.
// Return the sum of the numbers as a string.
// sumNumbers("1 2 3") == "6"
func sumNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(0, +).description
}

// Input is a string of numbers separated by spaces.
// Return the product of the numbers as a string.
// productNumbers("1 2 3") == "6"
func productNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(1, *)
}

// Input is a string of numbers separated by spaces.
// Return the sum of the numbers as a string.
// sumNumbers("1 2 3") == "6"
func sumNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(0, +).description
}

// Input is a string of numbers separated by spaces.
// Return the product of the numbers as a string.
// productNumbers("1 2 3") == "6"
func productNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(1, *)
}

// Input is a string of numbers separated by spaces.
// Return the sum of the numbers as a string.
// sumNumbers("1 2 3") == "6"
func sumNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(0, +).description
}

// Input is a string of numbers separated by spaces.
// Return the product of the numbers as a string.
// productNumbers("1 2 3") == "6"
func productNumbers(numbers: String) -> String {
    return numbers.split(separator: " ").map { Int($0)! }.reduce(1, *)
}

// Input is a string of numbers separated by spaces.
// Return the sum of the numbers as a string.
// sumNumbers("1 2 3") == "6"
func sumNumbers(numbers: String) -> String {
    return numbers.split(
return numbers.split(separator: " ").map { Int($0)! }.reduce(1, *) // cannot convert return expression of type 'Int' to return type 'String'

func sortNumbers(numbers: String) -> String {
    let numbersArray = numbers.components(separatedBy: " ")
    let sortedNumbers = numbersArray.sorted { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}
```swift
// Input is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "three one five") == "one three five"
func sortNumbers(numbers: String) -> String {
    let numbersArray = numbers.components(separatedBy: " ")
    let sortedNumbers = numbersArray.sorted { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}
<|file_separator|>
 // XCTAssertTrue failed

func sortNumbers(numbers: String) -> String {
    // split the string into an array of strings
    let numbersArray = numbers.split(separator: " ")
    // create a new array to store the sorted numbers
    var sortedNumbers = [String]()
    // loop through the array of strings
    for number in numbersArray {
        // convert the string to an integer
        let numberInt = Int(number)!
        // add the integer to the sortedNumbers array
        sortedNumbers.append(String(numberInt))
    }
    // sort the sortedNumbers array
    sortedNumbers.sort()
    // join the sorted numbers back into a string
    let sortedString = sortedNumbers.joined(separator: " ")
    // return the sorted string
    return sortedString
}
```swift
// Input is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "three one five") == "one three five"
func sortNumbers(numbers: String) -> String {
    // split the string into an array of strings
    let numbersArray = numbers.split(separator: " ")
    // create a new array to store the sorted numbers
    var sortedNumbers = [String]()
    // loop through the array of strings
    for number in numbersArray {
        // convert the string to an integer
        let numberInt = Int(number)!
        // add the integer to the sortedNumbers array
        sortedNumbers.append(String(numberInt))
    }
    // sort the sortedNumbers array
    sortedNumbers.sort()
    // join the sorted numbers back into a string
    let sortedString = sortedNumbers.joined(separator: " ")
    // return the sorted string
    return sortedString
}

// Example usage:
let input = "three one five"
let output = sortNumbers(numbers: input)
print(output) // prints "one three five"
<|file_separator|>
 // Fatal error: Unexpectedly found nil while unwrapping an Optional value

func sortNumbers(numbers: String) -> String {
    // TODO: Write your code here
    let numbersArray = numbers.split(separator: " ").map { $0 }
    let sortedNumbers = numbersArray.sorted { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}
```swift
// Input is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "three one five") == "one three five"
func sortNumbers(numbers: String) -> String {
    // TODO: Write your code here
    let numbersArray = numbers.split(separator: " ").map { $0 }
    let sortedNumbers = numbersArray.sorted { $0 < $1 }
    return sortedNumbers.joined(separator: " ")
}

print(sortNumbers(numbers: "three one five"))
<|file_separator|>
 // XCTAssertTrue failed

func sortNumbers(numbers: String) -> String {
    let numbersArray = numbers.split(separator: " ")
    var sortedNumbersArray = [Int]()
    for number in numbersArray {
        if let number = Int(number) {
            sortedNumbersArray.append(number)
        }
    }
    sortedNumbersArray.sort()
    var sortedNumbersString = ""
    for number in sortedNumbersArray {
        sortedNumbersString += "\(number) "
    }
    return sortedNumbersString.trimmingCharacters(in: .whitespaces)
}
```swift
// Input is a space-delimited string of numberals from 'zero' to 'nine'.
// Valid choices are 'zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight' and 'nine'.
// Return the string with numbers sorted from smallest to largest
// sortNumbers(numbers: "three one five") == "one three five"
func sortNumbers(numbers: String) -> String {
    let numbersArray = numbers.split(separator: " ")
    var sortedNumbersArray = [Int]()
    for number in numbersArray {
        if let number = Int(number) {
            sortedNumbersArray.append(number)
        }
    }
    sortedNumbersArray.sort()
    var sortedNumbersString = ""
    for number in sortedNumbersArray {
        sortedNumbersString += "\(number) "
    }
    return sortedNumbersString.trimmingCharacters(in: .whitespaces)
}
<|file_separator|>
 // XCTAssertTrue failed

func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    var distance = abs(numbers[0] - numbers[1])
    for i in 0..<numbers.count {
        for j in (i+1)..<numbers.count {
            let newDistance = abs(numbers[i] - numbers[j])
            if newDistance < distance {
                closestElements = (numbers[i], numbers[j])
                distance = newDistance
            }
        }
    }
    return closestElements
}
```swift
// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    var distance = abs(numbers[0] - numbers[1])
    for i in 0..<numbers.count {
        for j in (i+1)..<numbers.count {
            let newDistance = abs(numbers[i] - numbers[j])
            if newDistance < distance {
                closestElements = (numbers[i], numbers[j])
                distance = newDistance
            }
        }
    }
    return closestElements
}
<|file_separator|>
 // XCTAssertTrue failed

func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    var closestDistance = abs(closestElements.0 - closestElements.1)
    for i in 0..<numbers.count-1 {
        for j in i+1..<numbers.count {
            let distance = abs(numbers[i] - numbers[j])
            if distance < closestDistance {
                closestElements = (numbers[i], numbers[j])
                closestDistance = distance
            }
        }
    }
    return closestElements
}
```swift
// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    var closestDistance = abs(closestElements.0 - closestElements.1)
    for i in 0..<numbers.count-1 {
        for j in i+1..<numbers.count {
            let distance = abs(numbers[i] - numbers[j])
            if distance < closestDistance {
                closestElements = (numbers[i], numbers[j])
                closestDistance = distance
            }
        }
    }
    return closestElements
}

// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    var closestDistance = abs(closestElements.0 - closestElements.1)
    for i in 0..<numbers.count-1 {
        for j in i+1..<numbers.count {
            let distance = abs(numbers[i] - numbers[j])
            if distance < closestDistance {
                closestElements = (numbers[i], numbers[j])
                closestDistance = distance
            }
        }
    }
    return closestElements
}

// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    var closestDistance = abs(closestElements.0 - closestElements.1)
    for i in 0..<numbers.count-1 {
        for j in i+1..<numbers.count {
            let distance = abs(numbers[i] - numbers[j])
            if distance < closestDistance {
                closestElements = (numbers[i], numbers[j])
                closestDistance = distance
            }
        }
    }
    return closestElements
}

// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    var closestDistance = abs(closestElements.0 - closestElements.1)
    for i in 0..<numbers.count-1 {
        for j in i+1..<numbers.count {
            let distance = abs(numbers[i] - numbers[j])
            if distance < closestDistance {
                closestElements = (numbers[i], numbers[j])
                closestDistance = distance
            }
        }
    }
    return closestElements
}

// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.
 // XCTAssertTrue failed

func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    for i in 1..<numbers.count {
        let currentElement = numbers[i]
        let closestElement = closestElements.0 < closestElements.1 ? closestElements.0 : closestElements.1
        if abs(currentElement - closestElement) < abs(closestElement - closestElements.0) {
            closestElements = (currentElement, closestElements.0)
        } else {
            closestElements = (closestElements.0, currentElement)
        }
    }
    return closestElements
}
```swift
// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    for i in 1..<numbers.count {
        let currentElement = numbers[i]
        let closestElement = closestElements.0 < closestElements.1 ? closestElements.0 : closestElements.1
        if abs(currentElement - closestElement) < abs(closestElement - closestElements.0) {
            closestElements = (currentElement, closestElements.0)
        } else {
            closestElements = (closestElements.0, currentElement)
        }
    }
    return closestElements
}
<|file_separator|>
 // XCTAssertTrue failed

func findClosestElements(numbers: [Double]) -> (Double, Double) {
  var closestElements = (numbers[0], numbers[1])
  var closestDifference = abs(numbers[0] - numbers[1])
  for i in 1..<numbers.count {
    let difference = abs(numbers[i] - numbers[i + 1])
    if difference < closestDifference {
      closestElements = (numbers[i], numbers[i + 1])
      closestDifference = difference
    }
  }
  return closestElements
}
```swift
// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
  var closestElements = (numbers[0], numbers[1])
  var closestDifference = abs(numbers[0] - numbers[1])
  for i in 1..<numbers.count {
    let difference = abs(numbers[i] - numbers[i + 1])
    if difference < closestDifference {
      closestElements = (numbers[i], numbers[i + 1])
      closestDifference = difference
    }
  }
  return closestElements
}
<|file_separator|>
 // Fatal error: Index out of range

func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    var closestDistance = abs(closestElements.0 - closestElements.1)
    for i in 1..<numbers.count {
        let distance = abs(numbers[i] - numbers[i-1])
        if distance < closestDistance {
            closestDistance = distance
            closestElements = (numbers[i-1], numbers[i])
        }
    }
    return closestElements
}
```swift
// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    var closestDistance = abs(closestElements.0 - closestElements.1)
    for i in 1..<numbers.count {
        let distance = abs(numbers[i] - numbers[i-1])
        if distance < closestDistance {
            closestDistance = distance
            closestElements = (numbers[i-1], numbers[i])
        }
    }
    return closestElements
}
<|file_separator|>
 // XCTAssertTrue failed

func findClosestElements(numbers: [Double]) -> (Double, Double) {
  var closestElements = (numbers[0], numbers[1])
  for i in 1..<numbers.count {
    let current = numbers[i]
    if abs(current - closestElements.0) < abs(current - closestElements.1) {
      closestElements = (current, closestElements.0)
    } else {
      closestElements = (closestElements.1, current)
    }
  }
  return closestElements
}
```swift
// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
  var closestElements = (numbers[0], numbers[1])
  for i in 1..<numbers.count {
    let current = numbers[i]
    if abs(current - closestElements.0) < abs(current - closestElements.1) {
      closestElements = (current, closestElements.0)
    } else {
      closestElements = (closestElements.1, current)
    }
  }
  return closestElements
}
<|file_separator|>
 // XCTAssertTrue failed

func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closest = (Double.infinity, Double.infinity)
    var closestIndex = 0
    for i in 0..<numbers.count {
        for j in 0..<numbers.count {
            if i != j {
                let sum = numbers[i] + numbers[j]
                if abs(sum - closest.0) < abs(sum - closest.1) {
                    closest = (sum, numbers[j])
                    closestIndex = j
                }
            }
        }
    }
    return (numbers[closestIndex], numbers[closestIndex + 1])
}
```swift
// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closest = (Double.infinity, Double.infinity)
    var closestIndex = 0
    for i in 0..<numbers.count {
        for j in 0..<numbers.count {
            if i != j {
                let sum = numbers[i] + numbers[j]
                if abs(sum - closest.0) < abs(sum - closest.1) {
                    closest = (sum, numbers[j])
                    closestIndex = j
                }
            }
        }
    }
    return (numbers[closestIndex], numbers[closestIndex + 1])
}
<|file_separator|>
 // XCTAssertTrue failed

func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestPair = (numbers[0], numbers[1])
    for i in 0..<numbers.count-1 {
        for j in i+1..<numbers.count {
            let distance = abs(numbers[i] - numbers[j])
            if distance < abs(closestPair.0 - closestPair.1) {
                closestPair = (numbers[i], numbers[j])
            }
        }
    }
    return closestPair
}
```swift
// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestPair = (numbers[0], numbers[1])
    for i in 0..<numbers.count-1 {
        for j in i+1..<numbers.count {
            let distance = abs(numbers[i] - numbers[j])
            if distance < abs(closestPair.0 - closestPair.1) {
                closestPair = (numbers[i], numbers[j])
            }
        }
    }
    return closestPair
}
<|file_separator|>
 // XCTAssertTrue failed

func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    var distance = abs(numbers[0] - numbers[1])
    for i in 1..<numbers.count {
        let newDistance = abs(numbers[i] - numbers[i - 1])
        if newDistance < distance {
            closestElements = (numbers[i - 1], numbers[i])
            distance = newDistance
        }
    }
    return closestElements
}
```swift
// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (numbers[0], numbers[1])
    var distance = abs(numbers[0] - numbers[1])
    for i in 1..<numbers.count {
        let newDistance = abs(numbers[i] - numbers[i - 1])
        if newDistance < distance {
            closestElements = (numbers[i - 1], numbers[i])
            distance = newDistance
        }
    }
    return closestElements
}
<|file_separator|>
 // XCTAssertTrue failed

func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (Double.greatestFiniteMagnitude, Double.greatestFiniteMagnitude)
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            let sum = numbers[i] + numbers[j]
            if abs(sum - 3.0) < abs(closestElements.0 - 3.0) {
                closestElements = (sum, numbers[j])
            }
        }
    }
    return closestElements
}
```swift
// From a supplied array of numbers (of length at least two) select and return two that are the closest to each
// other and return them in order (smaller number, larger number).
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.2]) == (2.0, 2.2)
// findClosestElements(numbers: [1.0, 2.0, 3.0, 4.0, 5.0, 2.0]) == (2.0, 2.0)
func findClosestElements(numbers: [Double]) -> (Double, Double) {
    var closestElements = (Double.greatestFiniteMagnitude, Double.greatestFiniteMagnitude)
    for i in 0..<numbers.count {
        for j in i+1..<numbers.count {
            let sum = numbers[i] + numbers[j]
            if abs(sum - 3.0) < abs(closestElements.0 - 3.0) {
                closestElements = (sum, numbers[j])
            }
        }
    }
    return closestElements
}
<|file_separator|>
 // XCTAssertTrue failed

func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map { (n) -> Double in
        return (n - min) / (max - min)
    }
}

func sortLetters(string: String) -> String {
    return String(string.characters.sort())
}

func sortWords(string: String) -> String {
    return String(string.characters.sort())
}

func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}
```swift
// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map { (n) -> Double in
        return (n - min) / (max - min)
    }
}

// Given a string, return a string with all the letters in alphabetical order
// sortLetters("hello") == "ehllo"
func sortLetters(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order
// sortWords("hello world") == "ello horld"
func sortWords(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(string: String) -> String {
    return String(string.characters.sort())
}

// Given a string, return a string with all the words in alphabetical order,
// but with the first letter of each word capitalized
// sortWords("hello world") == "Hello World"
func sortWordsCapitalized(
return String(string.characters.sort()) // value of type 'String' has no member 'sort'
return String(string.characters.sort()) // value of type 'String' has no member 'sort'
return String(string.characters.sort()) // value of type 'String' has no member 'sort'

func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map { (n) -> Double in
        return (n - min) / (max - min)
    }
}

func sumOfArray(numbers: [Int]) -> [Int] {
    var sum = 0
    return numbers.map { (n) -> Int in
        sum += n
        return sum
    }
}

func productOfArray(numbers: [Int]) -> [Int] {
    var product = 1
    return numbers.map { (n) -> Int in
        product *= n
        return product
    }
}

func sumOfArrayIgnoringNegatives(numbers: [Int]) -> [Int] {
    var sum = 0
    return numbers.map { (n) -> Int in
        if n < 0 {
            return sum
        } else {
            sum += n
            return sum
        }
    }
}

func productOfArrayIgnoringNegatives(numbers: [Int]) -> [Int] {
    var product = 1
    return numbers.map { (n) -> Int in
        if n < 0 {
            return product
        } else {
            product *= n
            return product
        }
    }
}

func sumOfArrayIgnoringThreshold(numbers: [Int], threshold: Int) -> [Int] {
    var sum = 0
    return numbers.map { (n) -> Int in
        if n < threshold {
            return sum
        } else {
            sum += n
            return sum
        }
    }
}

func productOfArrayIgnoringThreshold(numbers: [Int], threshold: Int) -> [Int] {
    var product = 1
    return numbers.map { (n) -> Int in
        if n < threshold {
            return product
        } else {
            product *= n
            return product
        }
    }
}
```swift
// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map { (n) -> Double in
        return (n - min) / (max - min)
    }
}

// Given array of numbers, return an array of the same length where each number is the sum of the
// numbers in the original array at the same index
// sumOfArray(numbers: [1, 2, 3, 4, 5]) == [1, 3, 6, 10, 15]
func sumOfArray(numbers: [Int]) -> [Int] {
    var sum = 0
    return numbers.map { (n) -> Int in
        sum += n
        return sum
    }
}

// Given an array of numbers, return an array of the same length where each number is the product of
// the numbers in the original array at the same index
// productOfArray(numbers: [1, 2, 3, 4, 5]) == [1, 2, 6, 24, 120]
func productOfArray(numbers: [Int]) -> [Int] {
    var product = 1
    return numbers.map { (n) -> Int in
        product *= n
        return product
    }
}

// Given an array of numbers, return an array of the same length where each number is the sum of the
// numbers in the original array at the same index, except ignore any negative numbers
// sumOfArrayIgnoringNegatives(numbers: [1, 2, 3, 4, 5]) == [1, 3, 6, 10, 15]
func sumOfArrayIgnoringNegatives(numbers: [Int]) -> [Int] {
    var sum = 0
    return numbers.map { (n) -> Int in
        if n < 0 {
            return sum
        } else {
            sum += n
            return sum
        }
    }
}

// Given an array of numbers, return an array of the same length where each number is the product of
// the numbers in the original array at the same index, except ignore any negative numbers
// productOfArrayIgnoringNegatives(numbers: [1, 2, 3, 4, 5]) == [1, 2, 6, 24, 120]
func productOfArrayIgnoringNegatives(numbers: [Int]) -> [Int] {
    var product = 1
    return numbers.map { (n) -> Int in
        if n < 0 {
            return product
        } else {
            product *= n
            return product
        }
    }
}

// Given an array of numbers, return an array of the same length where each number is the sum of the
// numbers in the original array at the same index, except ignore any numbers that are less than
// the threshold
// sumOfArrayIgnoringThreshold(numbers: [1, 2, 3, 4, 5], threshold: 3) == [1, 3, 6, 10, 15]
func sumOfArrayIgnoringThreshold(numbers: [Int], threshold: Int) -> [Int] {
    var sum = 0
    return numbers.map { (n) -> Int in
        if n < threshold {
            return sum
        } else {
            sum += n
            return sum
        }
    }
}

// Given an array of numbers, return an array of the same length where each number is the product of
// the numbers in the original array at the same index, except ignore any numbers that are less
// than the threshold
// productOfArrayIgnoringThreshold(numbers: [1, 2, 3, 4, 5], threshold: 3) == [1, 2, 6, 24, 120]
func productOfArrayIgnoringThreshold(numbers: [Int], threshold: Int) -> [Int] {
    var product = 1
    return numbers.map { (n) -> Int in
        if n < threshold {
            return product
        } else {
            product *= n
            return product
        }
    }
}

// Given an array of numbers, return an array of the same length where each number is the sum of the
// numbers in the original array at the same index, except ignore any numbers that are less than
// the threshold, and only add those numbers that are greater than the threshold
// sumOfArrayIgnoringThresholdAndOnlyAddingGreaterThan

func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map { $0 - min }
        .map { $0 / (max - min) }
        .map { $0 * 1.0 }
}
```swift
// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map { $0 - min }
        .map { $0 / (max - min) }
        .map { $0 * 1.0 }
}
<|file_separator|>

func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map {
        return ($0 - min) / (max - min)
    }
}

func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}
```swift
// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map {
        return ($0 - min) / (max - min)
    }
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given a string, return a string with the first character of each word capitalized
// capitalizeFirst("hello world") == "Hello World"
func capitalizeFirst(string: String) -> String {
    return string.components(separatedBy: " ").map {
        return $0.capitalized
    }.joined(separator: " ")
}

// Given

func rescaleToUnit(numbers: [Double]) -> [Double] {
    var min = Double.infinity
    var max = -Double.infinity
    for number in numbers {
        if number < min {
            min = number
        }
        if number > max {
            max = number
        }
    }
    return numbers.map { (number) -> Double in
        return (number - min) / (max - min)
    }
}

func countVowels(string: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for char in string {
        if vowels.contains(String(char)) {
            count += 1
        }
    }
    return count
}

func countConsonants(string: String) -> Int {
    let consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"]
    var count = 0
    for char in string {
        if consonants.contains(String(char)) {
            count += 1
        }
    }
    return count
}

func countWords(string: String) -> Int {
    return string.split(separator: " ").count
}

func countWordsEndingInVowel(string: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for word in string.split(separator: " ") {
        if vowels.contains(String(word.last!)) {
            count += 1
        }
    }
    return count
}

func countWordsStartingInVowel(string: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for word in string.split(separator: " ") {
        if vowels.contains(String(word.first!)) {
            count += 1
        }
    }
    return count
}

func countWordsWithVowelInMiddle(string: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for word in string.split(separator: " ") {
        if vowels.contains(String(word[word.index(word.startIndex, offsetBy: 1)])) && vowels.contains(String(word[word.index(word.endIndex, offsetBy: -1)])) {
            count += 1
        }
    }
    return count
}

func countWordsWithConsonantInMiddle(string: String) -> Int {
    let consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"]
    var count = 0
    for word in string.split(separator: " ") {
        if consonants.contains(String(word[word.index(word.startIndex, offsetBy: 1)])) && consonants.contains(String(word[word.index(word.endIndex, offsetBy: -1)])) {
            count += 1
        }
    }
    return count
}
```swift
// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    var min = Double.infinity
    var max = -Double.infinity
    for number in numbers {
        if number < min {
            min = number
        }
        if number > max {
            max = number
        }
    }
    return numbers.map { (number) -> Double in
        return (number - min) / (max - min)
    }
}

// Given a string, return the number of vowels in it
// countVowels("hello") == 2
func countVowels(string: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for char in string {
        if vowels.contains(String(char)) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of consonants in it
// countConsonants("hello") == 3
func countConsonants(string: String) -> Int {
    let consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"]
    var count = 0
    for char in string {
        if consonants.contains(String(char)) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of words in it
// countWords("hello world") == 2
func countWords(string: String) -> Int {
    return string.split(separator: " ").count
}

// Given a string, return the number of words that end in a vowel
// countWordsEndingInVowel("hello world") == 1
func countWordsEndingInVowel(string: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for word in string.split(separator: " ") {
        if vowels.contains(String(word.last!)) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of words that start in a vowel
// countWordsStartingInVowel("hello world") == 2
func countWordsStartingInVowel(string: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for word in string.split(separator: " ") {
        if vowels.contains(String(word.first!)) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of words that contain a vowel in the middle
// countWordsWithVowelInMiddle("hello world") == 1
func countWordsWithVowelInMiddle(string: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for word in string.split(separator: " ") {
        if vowels.contains(String(word[word.index(word.startIndex, offsetBy: 1)])) && vowels.contains(String(word[word.index(word.endIndex, offsetBy: -1)])) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of words that contain a consonant in the middle
// countWordsWithConsonantInMiddle("hello world") == 2
func countWordsWithConsonantInMiddle(string: String) -> Int {
    let consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"]
    var count = 0
    for word in string.split(separator: " ") {
        if consonants.contains(String(word[word.index(word.startIndex, offsetBy: 1)])) && consonants.contains(String(word[word.index(word.endIndex, offsetBy: -1)])) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of words that contain a consonant in the middle
// count

func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    let range = max - min
    return numbers.map { (number) -> Double in
        return (number - min) / range
    }
}

func sumOfNumbersGreaterThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 > 10 }.reduce(0, +)
}

func sumOfNumbersLessThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 < 10 }.reduce(0, +)
}
```swift
// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    let range = max - min
    return numbers.map { (number) -> Double in
        return (number - min) / range
    }
}

// Given array of numbers, return the sum of all numbers greater than 10
func sumOfNumbersGreaterThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 > 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers less than 10
func sumOfNumbersLessThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 < 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers greater than 10
func sumOfNumbersGreaterThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 > 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers less than 10
func sumOfNumbersLessThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 < 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers greater than 10
func sumOfNumbersGreaterThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 > 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers less than 10
func sumOfNumbersLessThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 < 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers greater than 10
func sumOfNumbersGreaterThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 > 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers less than 10
func sumOfNumbersLessThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 < 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers greater than 10
func sumOfNumbersGreaterThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 > 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers less than 10
func sumOfNumbersLessThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 < 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers greater than 10
func sumOfNumbersGreaterThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 > 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers less than 10
func sumOfNumbersLessThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 < 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers greater than 10
func sumOfNumbersGreaterThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 > 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers less than 10
func sumOfNumbersLessThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 < 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers greater than 10
func sumOfNumbersGreaterThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 > 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers less than 10
func sumOfNumbersLessThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 < 10 }.reduce(0, +)
}

// Given array of numbers, return the sum of all numbers greater than 10
func sumOfNumbersGreaterThan10(numbers: [Int]) -> Int {
    return numbers.filter { $0 > 10 }.reduce(0, +)

func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    let range = max - min
    return numbers.map { (number: Double) -> Double in
        return (number - min) / range
    }
}
```swift
// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    let range = max - min
    return numbers.map { (number: Double) -> Double in
        return (number - min) / range
    }
}

// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    let range = max - min
    return numbers.map { (number: Double) -> Double in
        return (number - min) / range
    }
}

// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    let range = max - min
    return numbers.map { (number: Double) -> Double in
        return (number - min) / range
    }
}

// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    let range = max - min
    return numbers.map { (number: Double) -> Double in
        return (number - min) / range
    }
}

// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    let range = max - min
    return numbers.map { (number: Double) -> Double in
        return (number - min) / range
    }
}

// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    let range = max - min
    return numbers.map { (number: Double) -> Double in
        return (number - min) / range
    }
}

// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 

func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map { (x: Double) -> Double in
        return (x - min) / (max - min)
    }
}
```swift
// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map { (x: Double) -> Double in
        return (x - min) / (max - min)
    }
}
<|file_separator|>

func rescaleToUnit(numbers: [Double]) -> [Double] {
    var min = numbers[0]
    var max = numbers[0]
    for i in 1..<numbers.count {
        if numbers[i] < min {
            min = numbers[i]
        }
        if numbers[i] > max {
            max = numbers[i]
        }
    }
    var rescaled = [Double]()
    for i in 0..<numbers.count {
        rescaled.append(numbers[i] - min)
    }
    for i in 0..<rescaled.count {
        rescaled[i] = rescaled[i] / (max - min)
    }
    return rescaled
}
```swift
// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    var min = numbers[0]
    var max = numbers[0]
    for i in 1..<numbers.count {
        if numbers[i] < min {
            min = numbers[i]
        }
        if numbers[i] > max {
            max = numbers[i]
        }
    }
    var rescaled = [Double]()
    for i in 0..<numbers.count {
        rescaled.append(numbers[i] - min)
    }
    for i in 0..<rescaled.count {
        rescaled[i] = rescaled[i] / (max - min)
    }
    return rescaled
}

// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    var min = numbers[0]
    var max = numbers[0]
    for i in 1..<numbers.count {
        if numbers[i] < min {
            min = numbers[i]
        }
        if numbers[i] > max {
            max = numbers[i]
        }
    }
    var rescaled = [Double]()
    for i in 0..<numbers.count {
        rescaled.append(numbers[i] - min)
    }
    for i in 0..<rescaled.count {
        rescaled[i] = rescaled[i] / (max - min)
    }
    return rescaled
}

// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    var min = numbers[0]
    var max = numbers[0]
    for i in 1..<numbers.count {
        if numbers[i] < min {
            min = numbers[i]
        }
        if numbers[i] > max {
            max = numbers[i]
        }
    }
    var rescaled = [Double]()
    for i in 0..<numbers.count {
        rescaled.append(numbers[i] - min)
    }
    for i in 0..<rescaled.count {
        rescaled[i] = rescaled[i] / (max - min)
    }
    return rescaled
}

// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    var min = numbers[0]
    var max = numbers[0]
    for i in 1..<numbers.count {
        if numbers[i] < min {
            min = numbers[i]
        }
        if numbers[i] > max {
            max = numbers[i]
        }
    }
    var rescaled = [Double]()
    for i in 0..<numbers.count {
        rescaled.append(numbers[i] - min)
    }
    for i in 0..<rescaled.count {
        rescaled[i] = rescaled[i] / (max - min)
    }
    return rescaled
}

// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1

func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map { (n) -> Double in
        return (n - min) / (max - min)
    }
}

func average(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: +) / Double(numbers.count)
}

func median(numbers: [Double]) -> Double {
    let sorted = numbers.sorted()
    let mid = sorted.count / 2
    if sorted.count % 2 == 0 {
        return (sorted[mid] + sorted[mid - 1]) / 2
    }
    return sorted[mid]
}

func mode(numbers: [Double]) -> Double {
    let counts = numbers.reduce(into: [Double: Int]()) { (counts, n) in
        counts[n, default: 0] += 1
    }
    return counts.max(by: { (a, b) -> Bool in
        return a.value < b.value
    })!.key
}

func variance(numbers: [Double]) -> Double {
    let mean = average(numbers: numbers)
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + (n - mean) * (n - mean)
    }) / Double(numbers.count)
}

func standardDeviation(numbers: [Double]) -> Double {
    return sqrt(variance(numbers: numbers))
}

func range(numbers: [Double]) -> Double {
    return numbers.max()! - numbers.min()!
}

func sum(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: +)
}

func product(numbers: [Double]) -> Double {
    return numbers.reduce(1, combine: *)
}

func sumOfSquares(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + n * n
    })
}

func sumOfCubes(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + n * n * n
    })
}

func sumOfPowers(numbers: [Double], power: Double) -> Double {
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + pow(n, power)
    })
}

func sumOfLog(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + log(n)
    })
}
```swift
// Given array of numbers (of at least two elements), apply a linear transform to that array,
// such that the smallest number will become 0 and the largest will become 1
// rescaleToUnit(numbers: [1.0, 2.0, 3.0, 4.0, 5.0]) == [0.0, 0.25, 0.5, 0.75, 1.0]
func rescaleToUnit(numbers: [Double]) -> [Double] {
    let min = numbers.min()!
    let max = numbers.max()!
    return numbers.map { (n) -> Double in
        return (n - min) / (max - min)
    }
}

// Given array of numbers, return the average of the numbers
func average(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: +) / Double(numbers.count)
}

// Given array of numbers, return the median of the numbers
func median(numbers: [Double]) -> Double {
    let sorted = numbers.sorted()
    let mid = sorted.count / 2
    if sorted.count % 2 == 0 {
        return (sorted[mid] + sorted[mid - 1]) / 2
    }
    return sorted[mid]
}

// Given array of numbers, return the mode of the numbers
func mode(numbers: [Double]) -> Double {
    let counts = numbers.reduce(into: [Double: Int]()) { (counts, n) in
        counts[n, default: 0] += 1
    }
    return counts.max(by: { (a, b) -> Bool in
        return a.value < b.value
    })!.key
}

// Given array of numbers, return the variance of the numbers
func variance(numbers: [Double]) -> Double {
    let mean = average(numbers: numbers)
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + (n - mean) * (n - mean)
    }) / Double(numbers.count)
}

// Given array of numbers, return the standard deviation of the numbers
func standardDeviation(numbers: [Double]) -> Double {
    return sqrt(variance(numbers: numbers))
}

// Given array of numbers, return the range of the numbers
func range(numbers: [Double]) -> Double {
    return numbers.max()! - numbers.min()!
}

// Given array of numbers, return the sum of the numbers
func sum(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: +)
}

// Given array of numbers, return the product of the numbers
func product(numbers: [Double]) -> Double {
    return numbers.reduce(1, combine: *)
}

// Given array of numbers, return the sum of the squares of the numbers
func sumOfSquares(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + n * n
    })
}

// Given array of numbers, return the sum of the cubes of the numbers
func sumOfCubes(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + n * n * n
    })
}

// Given array of numbers, return the sum of the powers of the numbers
func sumOfPowers(numbers: [Double], power: Double) -> Double {
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + pow(n, power)
    })
}

// Given array of numbers, return the sum of the log of the numbers
func sumOfLog(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + log(n)
    })
}

// Given array of numbers, return the sum of the log of the numbers
func sumOfLog(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + log(n)
    })
}

// Given array of numbers, return the sum of the log of the numbers
func sumOfLog(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + log(n)
    })
}

// Given array of numbers, return the sum of the log of the numbers
func sumOfLog(numbers: [Double]) -> Double {
    return numbers.reduce(0, combine: { (sum, n) -> Double in
        return sum + log(n)
    })
}

// Given array of numbers, return the sum of the log of the numbers
func sumOfLog(numbers: [Double]) -> Double {
    return numbers.reduce
return numbers.reduce(0, combine: +) / Double(numbers.count) // extraneous argument label 'combine:' in call
return numbers.reduce(0, combine: { (sum, n) -> Double in // extraneous argument label 'combine:' in call
return numbers.reduce(0, combine: +) // extraneous argument label 'combine:' in call
return numbers.reduce(1, combine: *) // extraneous argument label 'combine:' in call
return numbers.reduce(0, combine: { (sum, n) -> Double in // extraneous argument label 'combine:' in call
return numbers.reduce(0, combine: { (sum, n) -> Double in // extraneous argument label 'combine:' in call
return numbers.reduce(0, combine: { (sum, n) -> Double in // extraneous argument label 'combine:' in call
return numbers.reduce(0, combine: { (sum, n) -> Double in // extraneous argument label 'combine:' in call

func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap {
        if let intValue = $0 as? Int {
            return intValue
        }
        return nil
    }
}
```swift
// Filter given array of any swiftthon values only for integers
// filterIntegers(values: ["a", 3.14, 5]) == [5]
// filterIntegers(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap {
        if let intValue = $0 as? Int {
            return intValue
        }
        return nil
    }
}
<|file_separator|>

func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap {
        if let value = $0 as? Int {
            return value
        }
        return nil
    }
}
```swift
// Filter given array of any swiftthon values only for integers
// filterIntegers(values: ["a", 3.14, 5]) == [5]
// filterIntegers(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap {
        if let value = $0 as? Int {
            return value
        }
        return nil
    }
}
<|file_separator|>

func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap {
        if let value = $0 as? Int {
            return value
        }
        return nil
    }
}
```swift
// Filter given array of any swiftthon values only for integers
// filterIntegers(values: ["a", 3.14, 5]) == [5]
// filterIntegers(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap {
        if let value = $0 as? Int {
            return value
        }
        return nil
    }
}
<|file_separator|>

func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}

func filterStrings(values: [AnyHashable]) -> [String] {
    return values.compactMap { $0 as? String }
}

func filterArrays(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable] }
}

func filterDictionaries(values: [AnyHashable]) -> [[AnyHashable : AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable : AnyHashable] }
}

func filterTuples(values: [AnyHashable]) -> [(AnyHashable, AnyHashable)] {
    return values.compactMap { $0 as? (AnyHashable, AnyHashable) }
}

func filterSets(values: [AnyHashable]) -> [Set<AnyHashable>] {
    return values.compactMap { $0 as? Set<AnyHashable> }
}
```swift
// Filter given array of any swiftthon values only for integers
// filterIntegers(values: ["a", 3.14, 5]) == [5]
// filterIntegers(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}

// Filter given array of any swiftthon values only for strings
// filterStrings(values: ["a", 3.14, 5]) == ["a"]
// filterStrings(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == ["abc"]
func filterStrings(values: [AnyHashable]) -> [String] {
    return values.compactMap { $0 as? String }
}

// Filter given array of any swiftthon values only for arrays
// filterArrays(values: ["a", 3.14, 5]) == []
// filterArrays(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterArrays(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable] }
}

// Filter given array of any swiftthon values only for dictionaries
// filterDictionaries(values: ["a", 3.14, 5]) == []
// filterDictionaries(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[:], []]
func filterDictionaries(values: [AnyHashable]) -> [[AnyHashable : AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable : AnyHashable] }
}

// Filter given array of any swiftthon values only for dictionaries
// filterDictionaries(values: ["a", 3.14, 5]) == []
// filterDictionaries(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[:], []]
func filterDictionaries(values: [AnyHashable]) -> [[AnyHashable : AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable : AnyHashable] }
}

// Filter given array of any swiftthon values only for tuples
// filterTuples(values: ["a", 3.14, 5]) == []
// filterTuples(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterTuples(values: [AnyHashable]) -> [(AnyHashable, AnyHashable)] {
    return values.compactMap { $0 as? (AnyHashable, AnyHashable) }
}

// Filter given array of any swiftthon values only for tuples
// filterTuples(values: ["a", 3.14, 5]) == []
// filterTuples(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterTuples(values: [AnyHashable]) -> [(AnyHashable, AnyHashable)] {
    return values.compactMap { $0 as? (AnyHashable, AnyHashable) }
}

// Filter given array of any swiftthon values only for sets
// filterSets(values: ["a", 3.14, 5]) == []
// filterSets(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterSets(values: [AnyHashable]) -> [Set<AnyHashable>] {
    return values.compactMap { $0 as? Set<AnyHashable> }
}

// Filter given array of any swiftthon values only for sets
// filterSets(values: ["a", 3.14, 5]) == []
// filterSets(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterSets(values: [AnyHashable]) -> [Set<AnyHashable>] {
    return values.compactMap { $0 as? Set<AnyHashable> }
}

// Filter given array of any swiftthon values only for arrays of integers
// filterIntegers(values: ["a", 3.14, 5])

func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}

func filterStrings(values: [AnyHashable]) -> [String] {
    return values.compactMap { $0 as? String }
}

func filterBooleans(values: [AnyHashable]) -> [Bool] {
    return values.compactMap { $0 as? Bool }
}

func filterArrays(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable] }
}

func filterDictionaries(values: [AnyHashable]) -> [[AnyHashable : AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable : AnyHashable] }
}

func filterSets(values: [AnyHashable]) -> [Set<AnyHashable>] {
    return values.compactMap { $0 as? Set<AnyHashable> }
}

func filterTuples(values: [AnyHashable]) -> [(AnyHashable, AnyHashable)] {
    return values.compactMap { $0 as? (AnyHashable, AnyHashable) }
}

func filterEnums(values: [AnyHashable]) -> [AnyHashable] {
    return values.compactMap { $0 as? AnyHashable }
}

func filterClasses(values: [AnyHashable]) -> [AnyClass] {
    return values.compactMap { $0 as? AnyClass }
}
```swift
// Filter given array of any swiftthon values only for integers
// filterIntegers(values: ["a", 3.14, 5]) == [5]
// filterIntegers(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}

// Filter given array of any swiftthon values only for strings
// filterStrings(values: ["a", 3.14, 5]) == ["a"]
// filterStrings(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == ["abc"]
func filterStrings(values: [AnyHashable]) -> [String] {
    return values.compactMap { $0 as? String }
}

// Filter given array of any swiftthon values only for booleans
// filterBooleans(values: ["a", 3.14, 5]) == [false]
// filterBooleans(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [false, false]
func filterBooleans(values: [AnyHashable]) -> [Bool] {
    return values.compactMap { $0 as? Bool }
}

// Filter given array of any swiftthon values only for arrays
// filterArrays(values: ["a", 3.14, 5]) == []
// filterArrays(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterArrays(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable] }
}

// Filter given array of any swiftthon values only for dictionaries
// filterDictionaries(values: ["a", 3.14, 5]) == []
// filterDictionaries(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterDictionaries(values: [AnyHashable]) -> [[AnyHashable : AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable : AnyHashable] }
}

// Filter given array of any swiftthon values only for sets
// filterSets(values: ["a", 3.14, 5]) == []
// filterSets(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterSets(values: [AnyHashable]) -> [Set<AnyHashable>] {
    return values.compactMap { $0 as? Set<AnyHashable> }
}

// Filter given array of any swiftthon values only for tuples
// filterTuples(values: ["a", 3.14, 5]) == []
// filterTuples(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterTuples(values: [AnyHashable]) -> [(AnyHashable, AnyHashable)] {
    return values.compactMap { $0 as? (AnyHashable, AnyHashable) }
}

// Filter given array of any swiftthon values only for enums
// filterEnums(values: ["a", 3.14, 5]) == []
// filterEnums(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterEnums(values: [AnyHashable]) -> [AnyHashable] {
    return values.compactMap { $0 as? AnyHashable }
}

// Filter given array of any swiftthon values only for classes
// filterClasses(values: ["a", 3.14, 5]) == []
// filterClasses(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterClasses(values: [AnyHashable]) -> [AnyClass] {
    return values.compactMap { $0 as? AnyClass }
}

// Filter given array of any swiftthon values only for protocols
// filterProtocols(values: ["a", 3.14, 5]) == []
// filterProtocols(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable],
return values.compactMap { $0 as? AnyHashable } // conditional cast from 'AnyHashable' to 'AnyHashable' always succeeds

func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}

func filterStrings(values: [AnyHashable]) -> [String] {
    return values.compactMap { $0 as? String }
}

func filterBooleans(values: [AnyHashable]) -> [Bool] {
    return values.compactMap { $0 as? Bool }
}

func filterArrays(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable] }
}

func filterDictionaries(values: [AnyHashable]) -> [[AnyHashable : AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable : AnyHashable] }
}

func filterSets(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? Set<AnyHashable> }
}

func filterTuples(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? (AnyHashable, AnyHashable) }
}

func filterEnums(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? AnyHashable }
}

func filterClasses(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? AnyHashable }
}
```swift
// Filter given array of any swiftthon values only for integers
// filterIntegers(values: ["a", 3.14, 5]) == [5]
// filterIntegers(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}

// Filter given array of any swiftthon values only for strings
// filterStrings(values: ["a", 3.14, 5]) == ["a"]
// filterStrings(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == ["abc"]
func filterStrings(values: [AnyHashable]) -> [String] {
    return values.compactMap { $0 as? String }
}

// Filter given array of any swiftthon values only for booleans
// filterBooleans(values: ["a", 3.14, 5]) == [false]
// filterBooleans(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [false, false]
func filterBooleans(values: [AnyHashable]) -> [Bool] {
    return values.compactMap { $0 as? Bool }
}

// Filter given array of any swiftthon values only for arrays
// filterArrays(values: ["a", 3.14, 5]) == []
// filterArrays(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterArrays(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable] }
}

// Filter given array of any swiftthon values only for dictionaries
// filterDictionaries(values: ["a", 3.14, 5]) == []
// filterDictionaries(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterDictionaries(values: [AnyHashable]) -> [[AnyHashable : AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable : AnyHashable] }
}

// Filter given array of any swiftthon values only for sets
// filterSets(values: ["a", 3.14, 5]) == []
// filterSets(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterSets(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? Set<AnyHashable> }
}

// Filter given array of any swiftthon values only for tuples
// filterTuples(values: ["a", 3.14, 5]) == []
// filterTuples(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterTuples(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? (AnyHashable, AnyHashable) }
}

// Filter given array of any swiftthon values only for enums
// filterEnums(values: ["a", 3.14, 5]) == []
// filterEnums(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterEnums(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? AnyHashable }
}

// Filter given array of any swiftthon values only for classes
// filterClasses(values: ["a", 3.14, 5]) == []
// filterClasses(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterClasses(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? AnyHashable }
}

// Filter given array of any swiftthon values only for protocols
// filterProtocols(values: ["a", 3.14, 5]) == []
// filterProtocols(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [Any
return values.compactMap { $0 as? Set<AnyHashable> } // cannot convert value of type 'Set<AnyHashable>?' to closure result type '[AnyHashable]?'
return values.compactMap { $0 as? (AnyHashable, AnyHashable) } // cannot convert value of type '(AnyHashable, AnyHashable)?' to closure result type '[AnyHashable]?'
return values.compactMap { $0 as? AnyHashable } // cannot convert value of type 'AnyHashable?' to closure result type '[AnyHashable]?'
return values.compactMap { $0 as? AnyHashable } // conditional cast from 'AnyHashable' to 'AnyHashable' always succeeds
return values.compactMap { $0 as? AnyHashable } // cannot convert value of type 'AnyHashable?' to closure result type '[AnyHashable]?'
return values.compactMap { $0 as? AnyHashable } // conditional cast from 'AnyHashable' to 'AnyHashable' always succeeds

func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap {
        if let value = $0 as? Int {
            return value
        }
        return nil
    }
}
```swift
// Filter given array of any swiftthon values only for integers
// filterIntegers(values: ["a", 3.14, 5]) == [5]
// filterIntegers(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap {
        if let value = $0 as? Int {
            return value
        }
        return nil
    }
}
<|file_separator|>

func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}

func filterStrings(values: [AnyHashable]) -> [String] {
    return values.compactMap { $0 as? String }
}

func filterBooleans(values: [AnyHashable]) -> [Bool] {
    return values.compactMap { $0 as? Bool }
}

func filterArrays(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable] }
}

func filterDictionaries(values: [AnyHashable]) -> [Dictionary<AnyHashable, AnyHashable>] {
    return values.compactMap { $0 as? [AnyHashable : AnyHashable] }
}

func filterSets(values: [AnyHashable]) -> [Set<AnyHashable>] {
    return values.compactMap { $0 as? Set<AnyHashable> }
}

func filterTuples(values: [AnyHashable]) -> [(AnyHashable, AnyHashable)] {
    return values.compactMap { $0 as? (AnyHashable, AnyHashable) }
}

func filterEnums(values: [AnyHashable]) -> [AnyHashable] {
    return values.compactMap { $0 as? AnyHashable }
}

func filterClasses(values: [AnyHashable]) -> [AnyHashable] {
    return values.compactMap { $0 as? AnyHashable }
}
```swift
// Filter given array of any swiftthon values only for integers
// filterIntegers(values: ["a", 3.14, 5]) == [5]
// filterIntegers(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}

// Filter given array of any swiftthon values only for strings
// filterStrings(values: ["a", 3.14, 5]) == ["a"]
// filterStrings(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == ["abc"]
func filterStrings(values: [AnyHashable]) -> [String] {
    return values.compactMap { $0 as? String }
}

// Filter given array of any swiftthon values only for booleans
// filterBooleans(values: ["a", 3.14, 5]) == [true]
// filterBooleans(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [true]
func filterBooleans(values: [AnyHashable]) -> [Bool] {
    return values.compactMap { $0 as? Bool }
}

// Filter given array of any swiftthon values only for arrays
// filterArrays(values: ["a", 3.14, 5]) == []
// filterArrays(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[], []]
func filterArrays(values: [AnyHashable]) -> [[AnyHashable]] {
    return values.compactMap { $0 as? [AnyHashable] }
}

// Filter given array of any swiftthon values only for dictionaries
// filterDictionaries(values: ["a", 3.14, 5]) == []
// filterDictionaries(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [[:], [:]]
func filterDictionaries(values: [AnyHashable]) -> [Dictionary<AnyHashable, AnyHashable>] {
    return values.compactMap { $0 as? [AnyHashable : AnyHashable] }
}

// Filter given array of any swiftthon values only for sets
// filterSets(values: ["a", 3.14, 5]) == []
// filterSets(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [Set(), Set()]
func filterSets(values: [AnyHashable]) -> [Set<AnyHashable>] {
    return values.compactMap { $0 as? Set<AnyHashable> }
}

// Filter given array of any swiftthon values only for tuples
// filterTuples(values: ["a", 3.14, 5]) == []
// filterTuples(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [(1, 2), (3, "abc")]
func filterTuples(values: [AnyHashable]) -> [(AnyHashable, AnyHashable)] {
    return values.compactMap { $0 as? (AnyHashable, AnyHashable) }
}

// Filter given array of any swiftthon values only for enums
// filterEnums(values: ["a", 3.14, 5]) == []
// filterEnums(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterEnums(values: [AnyHashable]) -> [AnyHashable] {
    return values.compactMap { $0 as? AnyHashable }
}

// Filter given array of any swiftthon values only for classes
// filterClasses(values: ["a", 3.14, 5]) == []
// filterClasses(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterClasses(values: [AnyHashable]) -> [AnyHashable] {
    return values.compactMap { $0 as? AnyHashable }
}

// Filter given array of any swiftthon values only for protocols
// filterProtocols(values: ["a", 3.14, 5]) == []
// filterProtocols(values: [1
return values.compactMap { $0 as? AnyHashable } // conditional cast from 'AnyHashable' to 'AnyHashable' always succeeds
return values.compactMap { $0 as? AnyHashable } // conditional cast from 'AnyHashable' to 'AnyHashable' always succeeds

func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}
```swift
// Filter given array of any swiftthon values only for integers
// filterIntegers(values: ["a", 3.14, 5]) == [5]
// filterIntegers(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}
<|file_separator|>

func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}
```swift
// Filter given array of any swiftthon values only for integers
// filterIntegers(values: ["a", 3.14, 5]) == [5]
// filterIntegers(values: [1, 2, 3, "abc", [:] as [AnyHashable : AnyHashable], [] as [AnyHashable]]) == [1, 2, 3]
func filterIntegers(values: [AnyHashable]) -> [Int] {
    return values.compactMap { $0 as? Int }
}
<|file_separator|>

func strlen(string: String) -> Int {
    return string.count
}
```swift
// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string

func strlen(string: String) -> Int {
    return string.count
}
```swift
// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string

func strlen(string: String) -> Int {
    return string.count
}
```swift
// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string

func strlen(string: String) -> Int {
    return string.count
}
```swift
// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string

func strlen(string: String) -> Int {
    return string.count
}
```swift
// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string

func strlen(string: String) -> Int {
    var length: Int = 0
    for _ in string {
        length += 1
    }
    return length
}

func firstChar(string: String) -> String {
    return String(string.prefix(1))
}

func lastChar(string: String) -> String {
    return String(string.suffix(1))
}

func lastNChars(string: String, n: Int) -> String {
    return String(string.suffix(n))
}

func firstNChars(string: String, n: Int) -> String {
    return String(string.prefix(n))
}

func withoutFirstChar(string: String) -> String {
    return String(string.dropFirst())
}

func withoutLastChar(string: String) -> String {
    return String(string.dropLast())
}

func withoutFirstNChars(string: String, n: Int) -> String {
    return String(string.dropFirst(n))
}

func withoutLastNChars(string: String, n: Int) -> String {
    return String(string.dropLast(n))
}

func withoutFirstNCharsAndLastNChars(string: String, n: Int) -> String {
    return String(string.dropFirst(n).dropLast(n))
}

func withoutLastNCharsAndFirstNChars(string: String, n: Int) -> String {
    return String(string.dropLast(n).dropFirst(n))
}
```swift
// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    var length: Int = 0
    for _ in string {
        length += 1
    }
    return length
}

// Return the first character of given string
// firstChar(string: "") == ""
// firstChar(string: "abc") == "a"
func firstChar(string: String) -> String {
    return String(string.prefix(1))
}

// Return the last character of given string
// lastChar(string: "") == ""
// lastChar(string: "abc") == "c"
func lastChar(string: String) -> String {
    return String(string.suffix(1))
}

// Return the last n characters of given string
// lastNChars(string: "", n: 1) == ""
// lastNChars(string: "abc", n: 1) == "c"
// lastNChars(string: "abc", n: 2) == "bc"
func lastNChars(string: String, n: Int) -> String {
    return String(string.suffix(n))
}

// Return the first n characters of given string
// firstNChars(string: "", n: 1) == ""
// firstNChars(string: "abc", n: 1) == "a"
// firstNChars(string: "abc", n: 2) == "ab"
func firstNChars(string: String, n: Int) -> String {
    return String(string.prefix(n))
}

// Return the string without the first character
// withoutFirstChar(string: "") == ""
// withoutFirstChar(string: "abc") == "bc"
func withoutFirstChar(string: String) -> String {
    return String(string.dropFirst())
}

// Return the string without the last character
// withoutLastChar(string: "") == ""
// withoutLastChar(string: "abc") == "ab"
func withoutLastChar(string: String) -> String {
    return String(string.dropLast())
}

// Return the string without the first n characters
// withoutFirstNChars(string: "", n: 1) == ""
// withoutFirstNChars(string: "abc", n: 1) == "bc"
// withoutFirstNChars(string: "abc", n: 2) == "c"
func withoutFirstNChars(string: String, n: Int) -> String {
    return String(string.dropFirst(n))
}

// Return the string without the last n characters
// withoutLastNChars(string: "", n: 1) == ""
// withoutLastNChars(string: "abc", n: 1) == "ab"
// withoutLastNChars(string: "abc", n: 2) == "a"
func withoutLastNChars(string: String, n: Int) -> String {
    return String(string.dropLast(n))
}

// Return the string without the first n characters and the last n characters
// withoutFirstNChars(string: "", n: 1) == ""
// withoutFirstNChars(string: "abc", n: 1) == "b"
// withoutFirstNChars(string: "abc", n: 2) == "c"
// withoutFirstNChars(string: "abc", n: 3) == ""
func withoutFirstNCharsAndLastNChars(string: String, n: Int) -> String {
    return String(string.dropFirst(n).dropLast(n))
}

// Return the string without the first n characters and the last n characters
// withoutLastNChars(string: "", n: 1) == ""
// withoutLastNChars(string: "abc", n: 1) == "a"
// withoutLastNChars(string: "abc", n: 2) == "ab"
// withoutLastNChars(string: "abc", n: 3) == ""
func withoutLastNCharsAndFirstNChars(string: String, n: Int) -> String {
    return String(string.dropLast(n).dropFirst(n))
}

// Return the string without the first n characters and the last n characters
// withoutFirstNCharsAndLastNChars(string: "", n: 1) == ""
// withoutFirstNCharsAndLastNChars(string: "abc", n: 1) == ""
// withoutFirstNCharsAndLastNChars(string: "abc", n: 2) == "c"
// withoutFirstNCharsAndLastNChars(

func strlen(string: String) -> Int {
    return string.count
}
```swift
// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string

func strlen(string: String) -> Int {
    return string.count
}
```swift
// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string

func strlen(string: String) -> Int {
    return string.count
}
```swift
// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string

func strlen(string: String) -> Int {
    return string.count
}
```swift
// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string
// strlen(string: "") == 0
// strlen(string: "abc") == 3
func strlen(string: String) -> Int {
    return string.count
}

// Return length of given string

func largestDivisor(n: Int) -> Int {
    // Write your code here
    var largest = 0
    for i in 1...n {
        if n % i == 0 {
            largest = i
        }
    }
    return largest
}

func smallestDivisor(n: Int) -> Int {
    // Write your code here
    var smallest = n
    for i in 1...n {
        if n % i == 0 {
            smallest = i
        }
    }
    return smallest
}

func largestPrimeFactor(n: Int) -> Int {
    // Write your code here
    var largest = 0
    for i in 2...n {
        if n % i == 0 {
            largest = i
        }
    }
    return largest
}

func smallestPrimeFactor(n: Int) -> Int {
    // Write your code here
    var smallest = n
    for i in 2...n {
        if n % i == 0 {
            smallest = i
        }
    }
    return smallest
}

func sumOfPrimes(n: Int) -> Int {
    // Write your code here
    var sum = 0
    for i in 2...n {
        if isPrime(i) {
            sum += i
        }
    }
    return sum
}

func sumOfPrimeFactors(n: Int) -> Int {
    // Write your code here
    var sum = 0
    for i in 2...n {
        if isPrime(i) {
            sum += i
        }
    }
    return sum
}
```swift
// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 5
func largestDivisor(n: Int) -> Int {
    // Write your code here
    var largest = 0
    for i in 1...n {
        if n % i == 0 {
            largest = i
        }
    }
    return largest
}

// For a given number n, find the smallest number that is divisible by all numbers from 1 to n
// smallestDivisor(n: 15) == 12
func smallestDivisor(n: Int) -> Int {
    // Write your code here
    var smallest = n
    for i in 1...n {
        if n % i == 0 {
            smallest = i
        }
    }
    return smallest
}

// For a given number n, find the largest prime factor of n
// largestPrimeFactor(n: 15) == 5
func largestPrimeFactor(n: Int) -> Int {
    // Write your code here
    var largest = 0
    for i in 2...n {
        if n % i == 0 {
            largest = i
        }
    }
    return largest
}

// For a given number n, find the smallest prime factor of n
// smallestPrimeFactor(n: 15) == 3
func smallestPrimeFactor(n: Int) -> Int {
    // Write your code here
    var smallest = n
    for i in 2...n {
        if n % i == 0 {
            smallest = i
        }
    }
    return smallest
}

// For a given number n, find the sum of all prime numbers smaller than n
// sumOfPrimes(n: 15) == 17
func sumOfPrimes(n: Int) -> Int {
    // Write your code here
    var sum = 0
    for i in 2...n {
        if isPrime(i) {
            sum += i
        }
    }
    return sum
}

// For a given number n, find the sum of all prime factors of n
// sumOfPrimeFactors(n: 15) == 17
func sumOfPrimeFactors(n: Int) -> Int {
    // Write your code here
    var sum = 0
    for i in 2...n {
        if isPrime(i) {
            sum += i
        }
    }
    return sum
}

// For a given number n, find the sum of all prime numbers smaller than n
// sumOfPrimes(n: 15) == 17
func sumOfPrimes(n: Int) -> Int {
    // Write your code here
    var sum = 0
    for i in 2...n {
        if isPrime(i) {
            sum += i
        }
    }
    return sum
}

// For a given number n, find the sum of all prime factors of n
// sumOfPrimeFactors(n: 15) == 17
func sumOfPrimeFactors(n: Int) -> Int {
    // Write your code here
    var sum = 0
    for i in 2...n {
        if isPrime(i) {
            sum += i
        }
    }
    return sum
}

// For a given number n, find the sum of all prime numbers smaller than n
// sumOfPrimes(n: 15) == 17
func sumOfPrimes(n: Int) -> Int {
    // Write your code here
    var sum = 0
    for i in 2...n {
        if isPrime(i) {
            sum += i
        }
    }
    return sum
}

// For a given number n, find the sum of all prime factors of n
// sumOfPrimeFactors(n: 15) == 17
func sumOfPrimeFactors(n: Int) -> Int {
    // Write your code here
    var sum = 0
    for i in 2...n {
        if isPrime(i) {
            sum += i
        }
    }
    return sum
}

// For a given number n, find the sum of all prime numbers smaller than n
// sumOfPrimes(n: 15) == 17
func sumOfPrimes(n: Int) -> Int {
    // Write your code here
    var sum = 0
    for i in 2...n {
        if isPrime(i) {
            sum += i
        }
    }
    return sum
}

//
if isPrime(i) { // cannot find 'isPrime' in scope
if isPrime(i) { // cannot find 'isPrime' in scope

func largestDivisor(n: Int) -> Int {
    var divisor = n - 1
    while divisor > 0 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}

func smallestMultiple(n: Int) -> Int {
    var result = 1
    for i in 2...n {
        result = lcm(result, i)
    }
    return result
}

func sumOfSquares(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i * i
    }
    return sum
}

func sumOfCubes(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i * i * i
    }
    return sum
}

func sumOfSquaresAndCubes(n: Int) -> Int {
    return sumOfSquares(n: n) - sumOfCubes(n: n)
}

func fibonacci(n: Int) -> Int {
    if n <= 1 {
        return n
    }
    var a = 0
    var b = 1
    for _ in 2...n {
        let c = a + b
        a = b
        b = c
    }
    return b
}

func nthPrime(n: Int) -> Int {
    var count = 0
    var num = 2
    while count < n {
        if isPrime(num: num) {
            count += 1
        }
        num += 1
    }
    return num - 1
}
```swift
// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 5
func largestDivisor(n: Int) -> Int {
    var divisor = n - 1
    while divisor > 0 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}

// For a given number n, find the smallest number that is divisible by all the numbers from 1 to n
// smallestMultiple(n: 10) == 2520
func smallestMultiple(n: Int) -> Int {
    var result = 1
    for i in 2...n {
        result = lcm(result, i)
    }
    return result
}

// For a given number n, find the sum of the squares of the first n natural numbers
// sumOfSquares(n: 10) == 285
func sumOfSquares(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i * i
    }
    return sum
}

// For a given number n, find the sum of the cubes of the first n natural numbers
// sumOfCubes(n: 10) == 3025
func sumOfCubes(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i * i * i
    }
    return sum
}

// For a given number n, find the difference between the sum of the squares of the first n natural numbers and the sum of the cubes of the first n natural numbers
// sumOfSquaresAndCubes(n: 10) == 2640
func sumOfSquaresAndCubes(n: Int) -> Int {
    return sumOfSquares(n: n) - sumOfCubes(n: n)
}

// For a given number n, find the nth Fibonacci number
// fibonacci(n: 4) == 3
func fibonacci(n: Int) -> Int {
    if n <= 1 {
        return n
    }
    var a = 0
    var b = 1
    for _ in 2...n {
        let c = a + b
        a = b
        b = c
    }
    return b
}

// For a given number n, find the nth prime number
// nthPrime(n: 6) == 13
func nthPrime(n: Int) -> Int {
    var count = 0
    var num = 2
    while count < n {
        if isPrime(num: num) {
            count += 1
        }
        num += 1
    }
    return num - 1
}

// For a given number n, find the nth prime number
// nthPrime(n: 6) == 13
func nthPrime(n: Int) -> Int {
    var count = 0
    var num = 2
    while count < n {
        if isPrime(num: num) {
            count += 1
        }
        num += 1
    }
    return num - 1
}

// For a given number n, find the nth prime number
// nthPrime(n: 6) == 13
func nthPrime(n: Int) -> Int {
    var count = 0
    var num = 2
    while count < n {
        if isPrime(num: num) {
            count += 1
        }
        num += 1
    }
    return num - 1
}

// For a given number n, find the nth prime number
// nthPrime(n: 6) == 13
func nthPrime(n: Int) -> Int {
    var count = 0
    var num = 2
    while count < n {
        if isPrime(num: num) {
            count += 1
        }
        num += 1
    }
    return num - 1
}

// For a given number n, find the nth prime number
// nthPrime(n: 6) == 13
func nthPrime(n: Int) -> Int {
    var count = 0
    var num = 2
    while count < n {
        if isPrime(num: num) {
            count += 1
        }
        num += 1
    }
    return num - 1
}

// For a given number n, find the nth prime number
// nthPrime(n: 6) == 13
result = lcm(result, i) // cannot find 'lcm' in scope
if isPrime(num: num) { // cannot find 'isPrime' in scope

func largestDivisor(n: Int) -> Int {
  var divisor = 1
  while divisor <= n {
    if n % divisor == 0 {
      return divisor
    }
    divisor += 1
  }
  return 0
}

func smallestDivisor(n: Int) -> Int {
  var divisor = n
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}

func largestDivisor(n: Int) -> Int {
  var divisor = n
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}

func smallestDivisor(n: Int) -> Int {
  var divisor = 1
  while divisor <= n {
    if n % divisor == 0 {
      return divisor
    }
    divisor += 1
  }
  return 0
}
```swift
// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 5
func largestDivisor(n: Int) -> Int {
  var divisor = 1
  while divisor <= n {
    if n % divisor == 0 {
      return divisor
    }
    divisor += 1
  }
  return 0
}

// For a given number n, find the smallest number that divides n evenly, larger than n
// smallestDivisor(n: 15) == 15
func smallestDivisor(n: Int) -> Int {
  var divisor = n
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}

// For a given number n, find the largest number that divides n evenly, larger than n
// largestDivisor(n: 15) == 15
func largestDivisor(n: Int) -> Int {
  var divisor = n
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}

// For a given number n, find the smallest number that divides n evenly, smaller than n
// smallestDivisor(n: 15) == 15
func smallestDivisor(n: Int) -> Int {
  var divisor = 1
  while divisor <= n {
    if n % divisor == 0 {
      return divisor
    }
    divisor += 1
  }
  return 0
}

// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 15
func largestDivisor(n: Int) -> Int {
  var divisor = n
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}

// For a given number n, find the smallest number that divides n evenly, larger than n
// smallestDivisor(n: 15) == 15
func smallestDivisor(n: Int) -> Int {
  var divisor = n
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}

// For a given number n, find the largest number that divides n evenly, larger than n
// largestDivisor(n: 15) == 15
func largestDivisor(n: Int) -> Int {
  var divisor = n
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}

// For a given number n, find the smallest number that divides n evenly, smaller than n
// smallestDivisor(n: 15) == 15
func smallestDivisor(n: Int) -> Int {
  var divisor = 1
  while divisor <= n {
    if n % divisor == 0 {
      return divisor
    }
    divisor += 1
  }
  return 0
}

// For a given number n, find the largest number that divides n evenly, larger than n
// largestDivisor(n: 15) == 15
func largestDivisor(n: Int) -> Int {
  var divisor = n
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}

// For a given number n, find the smallest number that divides n evenly, larger than n
// smallestDivisor(n: 15) == 15
func smallestDivisor(n: Int) -> Int {
  var divisor = n
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}

// For a given number n, find the largest number that divides n evenly, larger than n
// largestDivisor(n: 15) == 15
func largestDivisor(n: Int) -> Int {
  var divisor = n
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}

// For a given number n, find the smallest number that divides n evenly,
func largestDivisor(n: Int) -> Int { // invalid redeclaration of 'largestDivisor(n:)'
func smallestDivisor(n: Int) -> Int { // invalid redeclaration of 'smallestDivisor(n:)'

func largestDivisor(n: Int) -> Int {
    var divisor = n
    var largest = 0
    while divisor > 0 {
        if n % divisor == 0 {
            largest = divisor
            break
        }
        divisor -= 1
    }
    return largest
}

func smallestDivisible(n: Int) -> Int {
    var divisor = 1
    var smallest = 0
    while divisor <= n {
        if smallest % divisor == 0 {
            divisor += 1
        } else {
            smallest += 1
            divisor = 1
        }
    }
    return smallest
}

func largestPrimeFactor(n: Int) -> Int {
    var divisor = n
    var largest = 0
    while divisor > 1 {
        if n % divisor == 0 {
            largest = divisor
            divisor -= 1
        } else {
            divisor -= 1
        }
    }
    return largest
}

func smallestPrimeFactor(n: Int) -> Int {
    var divisor = n
    var smallest = 0
    while divisor > 1 {
        if n % divisor == 0 {
            smallest = divisor
            divisor -= 1
        } else {
            divisor -= 1
        }
    }
    return smallest
}

func divisors(n: Int) -> Int {
    var divisor = 1
    var sum = 0
    while divisor <= n {
        if n % divisor == 0 {
            sum += divisor
            divisor += 1
        } else {
            divisor += 1
        }
    }
    return sum
}

func primeDivisors(n: Int) -> Int {
    var divisor = 1
    var sum = 0
    while divisor <= n {
        if n % divisor == 0 && isPrime(divisor) {
            sum += divisor
            divisor += 1
        } else {
            divisor += 1
        }
    }
    return sum
}

func primeFactors(n: Int) -> Int {
    var divisor = 1
    var sum = 0
    while divisor <= n {
        if n % divisor == 0 && isPrime(divisor) {
            sum += divisor
            divisor += 1
        } else {
            divisor += 1
        }
    }
    return sum
}
```swift
// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 5
func largestDivisor(n: Int) -> Int {
    var divisor = n
    var largest = 0
    while divisor > 0 {
        if n % divisor == 0 {
            largest = divisor
            break
        }
        divisor -= 1
    }
    return largest
}

// For a given number n, find the smallest number that is divisible by all of the numbers from 1 to n
// smallestDivisible(n: 10) == 25
func smallestDivisible(n: Int) -> Int {
    var divisor = 1
    var smallest = 0
    while divisor <= n {
        if smallest % divisor == 0 {
            divisor += 1
        } else {
            smallest += 1
            divisor = 1
        }
    }
    return smallest
}

// For a given number n, find the largest prime factor of n
// largestPrimeFactor(n: 15) == 5
func largestPrimeFactor(n: Int) -> Int {
    var divisor = n
    var largest = 0
    while divisor > 1 {
        if n % divisor == 0 {
            largest = divisor
            divisor -= 1
        } else {
            divisor -= 1
        }
    }
    return largest
}

// For a given number n, find the smallest prime factor of n
// smallestPrimeFactor(n: 15) == 3
func smallestPrimeFactor(n: Int) -> Int {
    var divisor = n
    var smallest = 0
    while divisor > 1 {
        if n % divisor == 0 {
            smallest = divisor
            divisor -= 1
        } else {
            divisor -= 1
        }
    }
    return smallest
}

// For a given number n, find the sum of all the divisors of n
// divisors(n: 15) == 1 + 3 + 5 + 15 == 28
func divisors(n: Int) -> Int {
    var divisor = 1
    var sum = 0
    while divisor <= n {
        if n % divisor == 0 {
            sum += divisor
            divisor += 1
        } else {
            divisor += 1
        }
    }
    return sum
}

// For a given number n, find the sum of all the prime divisors of n
// primeDivisors(n: 15) == 1 + 3 + 5 == 9
func primeDivisors(n: Int) -> Int {
    var divisor = 1
    var sum = 0
    while divisor <= n {
        if n % divisor == 0 && isPrime(divisor) {
            sum += divisor
            divisor += 1
        } else {
            divisor += 1
        }
    }
    return sum
}

// For a given number n, find the sum of all the prime factors of n
// primeFactors(n: 15) == 3 + 5 == 8
func primeFactors(n: Int) -> Int {
    var divisor = 1
    var sum = 0
    while divisor <= n {
        if n % divisor == 0 && isPrime(divisor) {
            sum += divisor
            divisor += 1
        } else {
            divisor += 1
        }
    }
    return sum
}

// For a given number n, find the sum of all the prime factors of n, excluding 1
// primeFactors(n: 15) == 3 + 5 == 8
func primeFactors(n: Int) -> Int {
    var divisor = 1
    var sum = 0
    while divisor <= n {
        if n % divisor == 0 && isPrime(divisor) {
            sum += divisor
            divisor += 1
        } else {
            divisor += 1
        }
    }
    return sum
}

// For a given number n, find the sum of all the prime factors of n, excluding 1
// primeFactors(n: 15) == 3 + 5 == 8
func primeFactors(n: Int) -> Int {
    var divisor = 1
    var sum = 0
    while divisor <= n {
        if n % divisor == 0 && isPrime(divisor) {
            sum += divisor
            divisor += 1
        } else {
            divisor += 1
        }
    }
    return sum
}

// For a given number n, find the sum of
if n % divisor == 0 && isPrime(divisor) { // cannot find 'isPrime' in scope
if n % divisor == 0 && isPrime(divisor) { // cannot find 'isPrime' in scope

func largestDivisor(n: Int) -> Int {
  var divisor = n - 1
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 1
}
```swift
// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 5
func largestDivisor(n: Int) -> Int {
  var divisor = n - 1
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 1
}
<|file_separator|>

func largestDivisor(n: Int) -> Int {
    var divisor = 1
    while divisor <= n {
        if n % divisor == 0 {
            return divisor
        }
        divisor += 1
    }
    return 0
}

func smallestDivisor(n: Int) -> Int {
    var divisor = 1
    while divisor <= n {
        if n % divisor == 0 {
            return divisor
        }
        divisor += 1
    }
    return 0
}

func largestDivisor(n: Int) -> Int {
    var divisor = n
    while divisor >= 1 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}

func smallestDivisor(n: Int) -> Int {
    var divisor = n
    while divisor >= 1 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}
```swift
// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 5
func largestDivisor(n: Int) -> Int {
    var divisor = 1
    while divisor <= n {
        if n % divisor == 0 {
            return divisor
        }
        divisor += 1
    }
    return 0
}

// For a given number n, find the smallest number that is divisible by all numbers from 1 to n
// smallestDivisor(n: 15) == 15
func smallestDivisor(n: Int) -> Int {
    var divisor = 1
    while divisor <= n {
        if n % divisor == 0 {
            return divisor
        }
        divisor += 1
    }
    return 0
}

// For a given number n, find the largest number that divides n evenly, larger than n
// largestDivisor(n: 15) == 15
func largestDivisor(n: Int) -> Int {
    var divisor = n
    while divisor >= 1 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}

// For a given number n, find the smallest number that is divisible by all numbers from 1 to n
// smallestDivisor(n: 15) == 15
func smallestDivisor(n: Int) -> Int {
    var divisor = n
    while divisor >= 1 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}

// For a given number n, find the largest number that divides n evenly, larger than n
// largestDivisor(n: 15) == 15
func largestDivisor(n: Int) -> Int {
    var divisor = n
    while divisor >= 1 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}

// For a given number n, find the smallest number that is divisible by all numbers from 1 to n
// smallestDivisor(n: 15) == 15
func smallestDivisor(n: Int) -> Int {
    var divisor = n
    while divisor >= 1 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}

// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 15
func largestDivisor(n: Int) -> Int {
    var divisor = 1
    while divisor <= n {
        if n % divisor == 0 {
            return divisor
        }
        divisor += 1
    }
    return 0
}

// For a given number n, find the smallest number that is divisible by all numbers from 1 to n
// smallestDivisor(n: 15) == 15
func smallestDivisor(n: Int) -> Int {
    var divisor = 1
    while divisor <= n {
        if n % divisor == 0 {
            return divisor
        }
        divisor += 1
    }
    return 0
}

// For a given number n, find the largest number that divides n evenly, larger than n
// largestDivisor(n: 15) == 15
func largestDivisor(n: Int) -> Int {
    var divisor = n
    while divisor >= 1 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}

// For a given number n, find the smallest number that is divisible by all numbers from 1 to n
// smallestDivisor(n: 15) == 15
func smallestDivisor(n: Int) -> Int {
    var divisor = n
    while divisor >= 1 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}

// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 15
func largestDivisor(n: Int) -> Int {
    var divisor = 1
    while divisor <= n {
        if n % divisor == 0 {
            return divisor
        }
        divisor += 1
    }
    return 0
}

//
func largestDivisor(n: Int) -> Int { // invalid redeclaration of 'largestDivisor(n:)'
func smallestDivisor(n: Int) -> Int { // invalid redeclaration of 'smallestDivisor(n:)'

func largestDivisor(n: Int) -> Int {
  var divisor = n - 1
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}
```swift
// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 5
func largestDivisor(n: Int) -> Int {
  var divisor = n - 1
  while divisor > 0 {
    if n % divisor == 0 {
      return divisor
    }
    divisor -= 1
  }
  return 0
}
<|file_separator|>

func largestDivisor(n: Int) -> Int {
    var divisor = n - 1
    while divisor > 0 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}
```swift
// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 5
func largestDivisor(n: Int) -> Int {
    var divisor = n - 1
    while divisor > 0 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}
<|file_separator|>

func largestDivisor(n: Int) -> Int {
    var divisor = n - 1
    while divisor > 0 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}
```swift
// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 5
func largestDivisor(n: Int) -> Int {
    var divisor = n - 1
    while divisor > 0 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}
<|file_separator|>

func largestDivisor(n: Int) -> Int {
    var divisor = n
    while divisor > 0 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}
```swift
// For a given number n, find the largest number that divides n evenly, smaller than n
// largestDivisor(n: 15) == 5
func largestDivisor(n: Int) -> Int {
    var divisor = n
    while divisor > 0 {
        if n % divisor == 0 {
            return divisor
        }
        divisor -= 1
    }
    return 0
}
<|file_separator|>
 // XCTAssertTrue failed

func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        while n % i == 0 {
            factors.append(i)
            n /= i
        }
        i += 1
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}
```swift
// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        while n % i == 0 {
            factors.append(i)
            n /= i
        }
        i += 1
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}
<|file_separator|>

func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        while n % i == 0 {
            n /= i
            factors.append(i)
        }
        i += 1
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}
```swift
// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        while n % i == 0 {
            n /= i
            factors.append(i)
        }
        i += 1
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}
<|file_separator|>

func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        while n % i == 0 {
            n /= i
            factors.append(i)
        }
        i += 1
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}
```swift
// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        while n % i == 0 {
            n /= i
            factors.append(i)
        }
        i += 1
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}
<|file_separator|>

func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        if n % i == 0 {
            factors.append(i)
            n = n / i
        } else {
            i += 1
        }
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}
```swift
// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        if n % i == 0 {
            factors.append(i)
            n = n / i
        } else {
            i += 1
        }
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}

// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        if n % i == 0 {
            factors.append(i)
            n = n / i
        } else {
            i += 1
        }
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}

// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        if n % i == 0 {
            factors.append(i)
            n = n / i
        } else {
            i += 1
        }
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}

// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        if n % i == 0 {
            factors.append(i)
            n = n / i
        } else {
            i += 1
        }
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}

// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
    var factors = [Int]()
    var n = n
    var i = 2
    while i * i <= n {
        if n % i == 0 {
            factors.append(i)
            n = n / i
        } else {
            i += 1
        }
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}

// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding

func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i * i <= n {
    while n % i == 0 {
      factors.append(i)
      n /= i
    }
    i += 1
  }
  if n > 1 {
    factors.append(n)
  }
  return factors
}
```swift
// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i * i <= n {
    while n % i == 0 {
      factors.append(i)
      n /= i
    }
    i += 1
  }
  if n > 1 {
    factors.append(n)
  }
  return factors
}
<|file_separator|>

func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var num = n
  var i = 2
  while i * i <= num {
    if num % i == 0 {
      factors.append(i)
      num /= i
    } else {
      i += 1
    }
  }
  if num > 1 {
    factors.append(num)
  }
  return factors
}
```swift
// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var num = n
  var i = 2
  while i * i <= num {
    if num % i == 0 {
      factors.append(i)
      num /= i
    } else {
      i += 1
    }
  }
  if num > 1 {
    factors.append(num)
  }
  return factors
}
<|file_separator|>

func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i * i <= n {
    while n % i == 0 {
      factors.append(i)
      n /= i
    }
    i += 1
  }
  if n > 1 {
    factors.append(n)
  }
  return factors
}
```swift
// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i * i <= n {
    while n % i == 0 {
      factors.append(i)
      n /= i
    }
    i += 1
  }
  if n > 1 {
    factors.append(n)
  }
  return factors
}

// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i * i <= n {
    while n % i == 0 {
      factors.append(i)
      n /= i
    }
    i += 1
  }
  if n > 1 {
    factors.append(n)
  }
  return factors
}

// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i * i <= n {
    while n % i == 0 {
      factors.append(i)
      n /= i
    }
    i += 1
  }
  if n > 1 {
    factors.append(n)
  }
  return factors
}

// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i * i <= n {
    while n % i == 0 {
      factors.append(i)
      n /= i
    }
    i += 1
  }
  if n > 1 {
    factors.append(n)
  }
  return factors
}

// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i * i <= n {
    while n % i == 0 {
      factors.append(i)
      n /= i
    }
    i += 1
  }
  if n > 1 {
    factors.append(n)
  }
  return factors
}

// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [

func factorize(n: Int) -> [Int] {
    var n = n
    var factors = [Int]()
    var i = 2
    while i * i <= n {
        if n % i == 0 {
            factors.append(i)
            n /= i
        } else {
            i += 1
        }
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}
```swift
// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
    var n = n
    var factors = [Int]()
    var i = 2
    while i * i <= n {
        if n % i == 0 {
            factors.append(i)
            n /= i
        } else {
            i += 1
        }
    }
    if n > 1 {
        factors.append(n)
    }
    return factors
}
<|file_separator|>

func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i <= n {
    if n % i == 0 {
      factors.append(i)
      n /= i
    } else {
      i += 1
    }
  }
  return factors
}
```swift
// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i <= n {
    if n % i == 0 {
      factors.append(i)
      n /= i
    } else {
      i += 1
    }
  }
  return factors
}
<|file_separator|>

func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i * i <= n {
    if n % i == 0 {
      factors.append(i)
      n /= i
    } else {
      i += 1
    }
  }
  if n > 1 {
    factors.append(n)
  }
  return factors
}
```swift
// Return array of prime factors of given integer in the order from smallest to largest.
// Each of the factors should be arrayed number of times corresponding to how many times it appeares in factorization.
// Input number should be equal to the product of all factors
// factorize(n: 8) == [2, 2, 2]
// factorize(n: 25) == [5, 5]
// factorize(n: 70) == [2, 5, 7]
func factorize(n: Int) -> [Int] {
  var factors = [Int]()
  var n = n
  var i = 2
  while i * i <= n {
    if n % i == 0 {
      factors.append(i)
      n /= i
    } else {
      i += 1
    }
  }
  if n > 1 {
    factors.append(n)
  }
  return factors
}
<|file_separator|>

func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int]()
    for number in numbers {
        if !seen.contains(number) {
            seen.append(number)
            result.append(number)
        }
    }
    return result
}
```swift
// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int]()
    for number in numbers {
        if !seen.contains(number) {
            seen.append(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int]()
    for number in numbers {
        if !seen.contains(number) {
            seen.append(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int]()
    for number in numbers {
        if !seen.contains(number) {
            seen.append(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int]()
    for number in numbers {
        if !seen.contains(number) {
            seen.append(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int]()
    for number in numbers {
        if !seen.contains(number) {
            seen.append(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int]()
    for number in numbers {
        if !seen.contains(number) {
            seen.append(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int]()
    for number in numbers {
        if !seen.contains(number) {
            seen.append(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int]()
    for number in numbers {
        if !seen.contains(number) {
            seen.append(number)
            
 // XCTAssertTrue failed

func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int: Int]()
    for number in numbers {
        if seen[number] == nil {
            seen[number] = 1
            result.append(number)
        } else {
            seen[number]! += 1
        }
    }
    return result
}
```swift
// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int: Int]()
    for number in numbers {
        if seen[number] == nil {
            seen[number] = 1
            result.append(number)
        } else {
            seen[number]! += 1
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var set = Set<Int>()
    for number in numbers {
        if !set.contains(number) {
            set.insert(number)
            result.append(number)
        }
    }
    return result
}
```swift
// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var set = Set<Int>()
    for number in numbers {
        if !set.contains(number) {
            set.insert(number)
            result.append(number)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if seen.contains(number) {
            continue
        }
        seen.insert(number)
        result.append(number)
    }
    return result
}
```swift
// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if seen.contains(number) {
            continue
        }
        seen.insert(number)
        result.append(number)
    }
    return result
}
<|file_separator|>```
 // XCTAssertTrue failed

func removeDuplicates(numbers: [Int]) -> [Int] {
  var result = [Int]()
  var seen = [Int: Int]()
  for number in numbers {
    if seen[number] == nil {
      seen[number] = 1
      result.append(number)
    } else {
      seen[number]! += 1
    }
  }
  return result
}

func removeDuplicates(string: String) -> String {
  var result = ""
  var seen = [Character: Int]()
  for character in string {
    if seen[character] == nil {
      seen[character] = 1
      result.append(character)
    } else {
      seen[character]! += 1
    }
  }
  return result
}
```swift
// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
  var result = [Int]()
  var seen = [Int: Int]()
  for number in numbers {
    if seen[number] == nil {
      seen[number] = 1
      result.append(number)
    } else {
      seen[number]! += 1
    }
  }
  return result
}

// From a string, remove all characters that occur more than once.
// Keep order of characters left the same as in the input.
// removeDuplicates(string: "aabbcc") == "abc"
func removeDuplicates(string: String) -> String {
  var result = ""
  var seen = [Character: Int]()
  for character in string {
    if seen[character] == nil {
      seen[character] = 1
      result.append(character)
    } else {
      seen[character]! += 1
    }
  }
  return result
}

// From a string, remove all characters that occur more than once.
// Keep order of characters left the same as in the input.
// removeDuplicates(string: "aabbcc") == "abc"
func removeDuplicates(string: String) -> String {
  var result = ""
  var seen = [Character: Int]()
  for character in string {
    if seen[character] == nil {
      seen[character] = 1
      result.append(character)
    } else {
      seen[character]! += 1
    }
  }
  return result
}

// From a string, remove all characters that occur more than once.
// Keep order of characters left the same as in the input.
// removeDuplicates(string: "aabbcc") == "abc"
func removeDuplicates(string: String) -> String {
  var result = ""
  var seen = [Character: Int]()
  for character in string {
    if seen[character] == nil {
      seen[character] = 1
      result.append(character)
    } else {
      seen[character]! += 1
    }
  }
  return result
}

// From a string, remove all characters that occur more than once.
// Keep order of characters left the same as in the input.
// removeDuplicates(string: "aabbcc") == "abc"
func removeDuplicates(string: String) -> String {
  var result = ""
  var seen = [Character: Int]()
  for character in string {
    if seen[character] == nil {
      seen[character] = 1
      result.append(character)
    } else {
      seen[character]! += 1
    }
  }
  return result
}

// From a string, remove all characters that occur more than once.
// Keep order of characters left the same as in the input.
// removeDuplicates(string: "aabbcc") == "abc"
func removeDuplicates(string: String) -> String {
  var result = ""
  var seen = [Character: Int]()
  for character in string {
    if seen[character] == nil {
      seen[character] = 1
      result.append(character)
    } else {
      seen[character]! += 1
    }
  }
  return result
}

// From a string, remove all characters that occur more than once.
// Keep order of characters left the same as in the input.
// removeDuplicates(string: "aabbcc") == "abc"
func removeDuplicates(string: String) -> String {
  var result = ""
  var seen = [Character: Int]()
  for character in string {
    if seen[character] == nil {
      seen[character] = 1
      result.append(character)
    } else {
      seen[character]! += 1
    }
  }
  return result
}

// From a string, remove all characters that occur more than once.
// Keep order of characters left the same as in the input.
// removeDuplicates(string: "aabbcc") == "abc"
func removeDuplicates(string: String) -> String {
  var result = ""
  var seen = [Character: Int]()
  for character in string {
    if seen[character] == nil {
      seen[character] = 1
      result.append(character)
    } else {
      seen[character]! += 1
    }
  }
  return result
}

// From a string, remove all characters that occur more than once.
// Keep order of characters left
 // XCTAssertTrue failed

func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}
```swift
// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            
 // XCTAssertTrue failed

func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int]()
    for number in numbers {
        if seen.contains(number) {
            continue
        }
        seen.append(number)
        result.append(number)
    }
    return result
}
```swift
// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int]()
    for number in numbers {
        if seen.contains(number) {
            continue
        }
        seen.append(number)
        result.append(number)
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}
```swift
// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            seen.insert(number)
            result.append(number)
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if !seen.contains(number) {
            
 // XCTAssertTrue failed

func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if seen.contains(number) {
            continue
        }
        seen.insert(number)
        result.append(number)
    }
    return result
}
```swift
// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = Set<Int>()
    for number in numbers {
        if seen.contains(number) {
            continue
        }
        seen.insert(number)
        result.append(number)
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int: Int]()
    for number in numbers {
        if seen[number] == nil {
            result.append(number)
            seen[number] = 1
        } else {
            seen[number]! += 1
        }
    }
    return result
}
```swift
// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int: Int]()
    for number in numbers {
        if seen[number] == nil {
            result.append(number)
            seen[number] = 1
        } else {
            seen[number]! += 1
        }
    }
    return result
}

// From an array of integers, remove all elements that occur more than once.
// Keep order of elements left the same as in the input.
// removeDuplicates(numbers: [1, 2, 3, 2, 4]) == [1, 3, 4]
func removeDuplicates(numbers: [Int]) -> [Int] {
    var result = [Int]()
    var seen = [Int: Int]()
    for number in numbers {
        if seen[number] == nil {
            result.append(number)
            seen[number] = 1
        } else {
            seen[number]! += 1
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isLowercase {
            result += char.uppercased()
        } else if char.isUppercase {
            result += char.lowercased()
        } else {
            result += char
        }
    }
    return result
}
```swift
// For a given string, flip lowercase characters to uppercase and uppercase to lowercase.
// flipCase(string: "Hello") == "hELLO"
func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isLowercase {
            result += char.uppercased()
        } else if char.isUppercase {
            result += char.lowercased()
        } else {
            result += char
        }
    }
    return result
}
<|file_separator|>
result += char // cannot convert value of type 'Character' to expected argument type 'String'

func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isLowercase {
            result += char.uppercased()
        } else if char.isUppercase {
            result += char.lowercased()
        } else {
            result += char
        }
    }
    return result
}
```swift
// For a given string, flip lowercase characters to uppercase and uppercase to lowercase.
// flipCase(string: "Hello") == "hELLO"
func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isLowercase {
            result += char.uppercased()
        } else if char.isUppercase {
            result += char.lowercased()
        } else {
            result += char
        }
    }
    return result
}
<|file_separator|>
result += char // cannot convert value of type 'Character' to expected argument type 'String'

func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isUppercase {
            result += char.lowercased()
        } else if char.isLowercase {
            result += char.uppercased()
        } else {
            result += char
        }
    }
    return result
}
```swift
// For a given string, flip lowercase characters to uppercase and uppercase to lowercase.
// flipCase(string: "Hello") == "hELLO"
func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isUppercase {
            result += char.lowercased()
        } else if char.isLowercase {
            result += char.uppercased()
        } else {
            result += char
        }
    }
    return result
}
<|file_separator|>
result += char // cannot convert value of type 'Character' to expected argument type 'String'

func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isUppercase {
            result += char.lowercased()
        } else if char.isLowercase {
            result += char.uppercased()
        } else {
            result += char
        }
    }
    return result
}
```swift
// For a given string, flip lowercase characters to uppercase and uppercase to lowercase.
// flipCase(string: "Hello") == "hELLO"
func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isUppercase {
            result += char.lowercased()
        } else if char.isLowercase {
            result += char.uppercased()
        } else {
            result += char
        }
    }
    return result
}
<|file_separator|>
result += char // cannot convert value of type 'Character' to expected argument type 'String'

func flipCase(string: String) -> String {
    var result = ""
    for c in string {
        if c.isLowercase {
            result += c.uppercased()
        } else {
            result += c.lowercased()
        }
    }
    return result
}
```swift
// For a given string, flip lowercase characters to uppercase and uppercase to lowercase.
// flipCase(string: "Hello") == "hELLO"
func flipCase(string: String) -> String {
    var result = ""
    for c in string {
        if c.isLowercase {
            result += c.uppercased()
        } else {
            result += c.lowercased()
        }
    }
    return result
}
<|file_separator|>

func flipCase(string: String) -> String {
    var result = ""
    for c in string {
        if c.isUppercase {
            result += c.lowercased()
        } else {
            result += c.uppercased()
        }
    }
    return result
}

func countZ(string: String) -> Int {
    var count = 0
    for c in string {
        if c == "z" {
            count += 1
        }
    }
    return count
}

func countZ(string: String) -> Int {
    return string.filter { $0 == "z" }.count
}

func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + ($1 == "z" ? 1 : 0) }
}

func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) }
}
```swift
// For a given string, flip lowercase characters to uppercase and uppercase to lowercase.
// flipCase(string: "Hello") == "hELLO"
func flipCase(string: String) -> String {
    var result = ""
    for c in string {
        if c.isUppercase {
            result += c.lowercased()
        } else {
            result += c.uppercased()
        }
    }
    return result
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    var count = 0
    for c in string {
        if c == "z" {
            count += 1
        }
    }
    return count
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.filter { $0 == "z" }.count
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + ($1 == "z" ? 1 : 0) }
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) }
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) }
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) }
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) }
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) }
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) }
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) }
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) }
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) }
}

// For a given string, return the number of times the character "z" appears in it.
// countZ("zzz") == 2
func countZ(string: String) -> Int {
    return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) }
}

func countZ(string: String) -> Int { // invalid redeclaration of 'countZ(string:)'
func countZ(string: String) -> Int { // invalid redeclaration of 'countZ(string:)'
func countZ(string: String) -> Int { // invalid redeclaration of 'countZ(string:)'
return string.reduce(0) { $0 + (string[$1] == "z" ? 1 : 0) } // cannot convert value of type 'String.Element' (aka 'Character') to expected argument type 'Range<String.Index>'

func flipCase(string: String) -> String {
    var result = ""
    for c in string {
        if c.isUppercase {
            result += c.lowercased()
        } else {
            result += c.uppercased()
        }
    }
    return result
}
```swift
// For a given string, flip lowercase characters to uppercase and uppercase to lowercase.
// flipCase(string: "Hello") == "hELLO"
func flipCase(string: String) -> String {
    var result = ""
    for c in string {
        if c.isUppercase {
            result += c.lowercased()
        } else {
            result += c.uppercased()
        }
    }
    return result
}
<|file_separator|>

func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isUppercase {
            result += char.lowercased()
        } else {
            result += char.uppercased()
        }
    }
    return result
}
```swift
// For a given string, flip lowercase characters to uppercase and uppercase to lowercase.
// flipCase(string: "Hello") == "hELLO"
func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isUppercase {
            result += char.lowercased()
        } else {
            result += char.uppercased()
        }
    }
    return result
}
<|file_separator|>

func flipCase(string: String) -> String {
    var result = ""
    for c in string {
        if c.isUppercase {
            result += c.lowercased()
        } else {
            result += c.uppercased()
        }
    }
    return result
}
```swift
// For a given string, flip lowercase characters to uppercase and uppercase to lowercase.
// flipCase(string: "Hello") == "hELLO"
func flipCase(string: String) -> String {
    var result = ""
    for c in string {
        if c.isUppercase {
            result += c.lowercased()
        } else {
            result += c.uppercased()
        }
    }
    return result
}
<|file_separator|>

func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isUppercase {
            result += char.lowercased()
        } else {
            result += char.uppercased()
        }
    }
    return result
}
```swift
// For a given string, flip lowercase characters to uppercase and uppercase to lowercase.
// flipCase(string: "Hello") == "hELLO"
func flipCase(string: String) -> String {
    var result = ""
    for char in string {
        if char.isUppercase {
            result += char.lowercased()
        } else {
            result += char.uppercased()
        }
    }
    return result
}
<|file_separator|>

func concatenate(strings: [String]) -> String {
    var result = ""
    for str in strings {
        result += str
    }
    return result
}

func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}
```swift
// Concatenate array of strings into a single string
// concatenate(strings: [] as [String]) == ""
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for str in strings {
        result += str
    }
    return result
}

// Concatenate array of strings into a single string, with a separator
// concatenate(strings: ["a", "b", "c"], separator: " ") == "a b c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}

// Concatenate array of strings into a single string, with a separator
// concatenate(strings: ["a", "b", "c"], separator: " ") == "a b c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}

// Concatenate array of strings into a single string, with a separator
// concatenate(strings: ["a", "b", "c"], separator: " ") == "a b c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}

// Concatenate array of strings into a single string, with a separator
// concatenate(strings: ["a", "b", "c"], separator: " ") == "a b c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}

// Concatenate array of strings into a single string, with a separator
// concatenate(strings: ["a", "b", "c"], separator: " ") == "a b c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}

// Concatenate array of strings into a single string, with a separator
// concatenate(strings: ["a", "b", "c"], separator: " ") == "a b c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}

// Concatenate array of strings into a single string, with a separator
// concatenate(strings: ["a", "b", "c"], separator: " ") == "a b c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}

// Concatenate array of strings into a single string, with a separator
// concatenate(strings: ["a", "b", "c"], separator: " ") == "a b c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}

// Concatenate array of strings into a single string, with a separator
// concatenate(strings: ["a", "b", "c"], separator: " ") == "a b c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}

// Concatenate array of strings into a single string, with a separator
// concatenate(strings: ["a", "b", "c"], separator: " ") == "a b c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}

// Concatenate array of strings into a single string, with a separator
// concatenate(strings: ["a", "b", "c"], separator: " ") == "a b c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for str in strings {
        result += str + separator
    }
    return result.dropLast()
}

// Concatenate array of
return result.dropLast() // no 'dropLast' candidates produce the expected contextual result type 'String'

func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}
```swift
// Concatenate array of strings into a single string
// concatenate(strings: [] as [String]) == ""
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0
func concatenate(strings: [String]) -> String { // invalid redeclaration of 'concatenate(strings:)'

func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

func concatenate(strings: [String]) -> String {
    return strings.reduce("", +)
}

func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}
```swift
// Concatenate array of strings into a single string
// concatenate(strings: [] as [String]) == ""
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("", +)
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
func concatenate(strings: [String]) -> String { // invalid redeclaration of 'concatenate(strings:)'
func concatenate(strings: [String]) -> String { // invalid redeclaration of 'concatenate(strings:)'

func concatenate(strings: [String]) -> String {
    var result = ""
    for str in strings {
        result += str
    }
    return result
}

func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}
```swift
// Concatenate array of strings into a single string
// concatenate(strings: [] as [String]) == ""
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for str in strings {
        result += str
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0 + $1 }
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    return strings.reduce("") { $0
func concatenate(strings: [String]) -> String { // invalid redeclaration of 'concatenate(strings:)'

func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}
```swift
// Concatenate array of strings into a single string
// concatenate(strings: [] as [String]) == ""
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string
// concatenate(strings

func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}
```swift
// Concatenate array of strings into a single string
// concatenate(strings: [] as [String]) == ""
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}
<|file_separator|>

func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for string in strings {
        result += string
        if string != strings.last {
            result += separator
        }
    }
    return result
}
```swift
// Concatenate array of strings into a single string
// concatenate(strings: [] as [String]) == ""
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}

// Concatenate array of strings into a single string, separated by a given separator
// concatenate(strings: ["a", "b", "c"], separator: ", ") == "a, b, c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for string in strings {
        result += string
        if string != strings.last {
            result += separator
        }
    }
    return result
}

// Concatenate array of strings into a single string, separated by a given separator
// concatenate(strings: ["a", "b", "c"], separator: ", ") == "a, b, c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for string in strings {
        result += string
        if string != strings.last {
            result += separator
        }
    }
    return result
}

// Concatenate array of strings into a single string, separated by a given separator
// concatenate(strings: ["a", "b", "c"], separator: ", ") == "a, b, c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for string in strings {
        result += string
        if string != strings.last {
            result += separator
        }
    }
    return result
}

// Concatenate array of strings into a single string, separated by a given separator
// concatenate(strings: ["a", "b", "c"], separator: ", ") == "a, b, c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for string in strings {
        result += string
        if string != strings.last {
            result += separator
        }
    }
    return result
}

// Concatenate array of strings into a single string, separated by a given separator
// concatenate(strings: ["a", "b", "c"], separator: ", ") == "a, b, c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for string in strings {
        result += string
        if string != strings.last {
            result += separator
        }
    }
    return result
}

// Concatenate array of strings into a single string, separated by a given separator
// concatenate(strings: ["a", "b", "c"], separator: ", ") == "a, b, c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for string in strings {
        result += string
        if string != strings.last {
            result += separator
        }
    }
    return result
}

// Concatenate array of strings into a single string, separated by a given separator
// concatenate(strings: ["a", "b", "c"], separator: ", ") == "a, b, c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for string in strings {
        result += string
        if string != strings.last {
            result += separator
        }
    }
    return result
}

// Concatenate array of strings into a single string, separated by a given separator
// concatenate(strings: ["a", "b", "c"], separator: ", ") == "a, b, c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for string in strings {
        result += string
        if string != strings.last {
            result += separator
        }
    }
    return result
}

// Concatenate array of strings into a single string, separated by a given separator
// concatenate(strings: ["a", "b", "c"], separator: ", ") == "a, b, c"
func concatenate(strings: [String], separator: String) -> String {
    var result = ""
    for string in strings {
        result += string
        if string != strings.last {
            result += separator
        }
    }
    return result
}

// Concatenate array of strings into a single string, separated by a given separator
// concatenate(strings: ["a", "b", "c"], separator: ", ") == "a, b, c"
func concatenate(strings: [

func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}
```swift
// Concatenate array of strings into a single string
// concatenate(strings: [] as [String]) == ""
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}
<|file_separator|>

func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}
```swift
// Concatenate array of strings into a single string
// concatenate(strings: [] as [String]) == ""
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}
<|file_separator|>

func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}
```swift
// Concatenate array of strings into a single string
// concatenate(strings: [] as [String]) == ""
// concatenate(strings: ["a", "b", "c"]) == "abc"
func concatenate(strings: [String]) -> String {
    var result = ""
    for string in strings {
        result += string
    }
    return result
}
<|file_separator|>

func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}
```swift
// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }

func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}
```swift
// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }

func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}
```swift
// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }

func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}
```swift
// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }

func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}
```swift
// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }

func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}
```swift
// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }

func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}
```swift
// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }

func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}
```swift
// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }

func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}
```swift
// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}
<|file_separator|>

func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}
```swift
// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }
}

// Filter an input array of strings only for ones that start with a given prefix.
// filterByPrefix(strings: [] as [String], prefix: "a") == [] as [String]
// filterByPrefix(strings: ["abc", "bcd", "cde", "array"], prefix: "a") == ["abc", "array"]
func filterByPrefix(strings: [String], prefix: String) -> [String] {
    return strings.filter { $0.hasPrefix(prefix) }

func getPositive(l: [Int]) -> [Int] {
    var positive = [Int]()
    for i in l {
        if i > 0 {
            positive.append(i)
        }
    }
    return positive
}
```swift
// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    var positive = [Int]()
    for i in l {
        if i > 0 {
            positive.append(i)
        }
    }
    return positive
}
<|file_separator|>

func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}
```swift
// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2,

func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}
```swift
// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}
<|file_separator|>

func getPositive(l: [Int]) -> [Int] {
    var result = [Int]()
    for i in l {
        if i > 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    var result = [Int]()
    for i in l {
        if i > 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>

func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}
```swift
// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2,

func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}
```swift
// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2,

func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}
```swift
// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2,

func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

func getNegative(l: [Int]) -> [Int] {
    return l.filter { $0 < 0 }
}

func getEven(l: [Int]) -> [Int] {
    return l.filter { $0 % 2 == 0 }
}

func getOdd(l: [Int]) -> [Int] {
    return l.filter { $0 % 2 == 1 }
}

func getDivisibleBy3(l: [Int]) -> [Int] {
    return l.filter { $0 % 3 == 0 }
}

func getDivisibleBy5(l: [Int]) -> [Int] {
    return l.filter { $0 % 5 == 0 }
}

func getDivisibleBy7(l: [Int]) -> [Int] {
    return l.filter { $0 % 7 == 0 }
}

func getDivisibleBy3And5(l: [Int]) -> [Int] {
    return l.filter { $0 % 3 == 0 && $0 % 5 == 0 }
}
```swift
// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only negative numbers in the array.
// getNegative(l: [-1, 2, -4, 5, 6]) == [-1, -4]
// getNegative(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [-5, -3, -10]
func getNegative(l: [Int]) -> [Int] {
    return l.filter { $0 < 0 }
}

// Return only even numbers in the array.
// getEven(l: [-1, 2, -4, 5, 6]) == [2, 6]
// getEven(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [2, 0, 6, -10]
func getEven(l: [Int]) -> [Int] {
    return l.filter { $0 % 2 == 0 }
}

// Return only odd numbers in the array.
// getOdd(l: [-1, 2, -4, 5, 6]) == [1, 5]
// getOdd(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [1, 3, 5, -3, 3, -10]
func getOdd(l: [Int]) -> [Int] {
    return l.filter { $0 % 2 == 1 }
}

// Return only numbers that are divisible by 3 in the array.
// getDivisibleBy3(l: [-1, 2, -4, 5, 6]) == [3, 6]
// getDivisibleBy3(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [3, 0, 3, -10]
func getDivisibleBy3(l: [Int]) -> [Int] {
    return l.filter { $0 % 3 == 0 }
}

// Return only numbers that are divisible by 5 in the array.
// getDivisibleBy5(l: [-1, 2, -4, 5, 6]) == [5]
// getDivisibleBy5(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5]
func getDivisibleBy5(l: [Int]) -> [Int] {
    return l.filter { $0 % 5 == 0 }
}

// Return only numbers that are divisible by 7 in the array.
// getDivisibleBy7(l: [-1, 2, -4, 5, 6]) == [7]
// getDivisibleBy7(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [7]
func getDivisibleBy7(l: [Int]) -> [Int] {
    return l.filter { $0 % 7 == 0 }
}

// Return only numbers that are divisible by 3 and 5 in the array.
// getDivisibleBy3And5(l: [-1, 2, -4, 5, 6]) == [3, 5]
// getDivisibleBy3And5(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [3, 5]
func getDivisibleBy3And5(l: [Int]) -> [Int] {
    return l.filter { $0 % 3 == 0 && $0 % 5 == 0 }
}

// Return only numbers that are divisible by 3 or 5 in the array.
// getDivisibleBy3Or5(l: [-1, 2, -4, 5, 6]) == [3, 5, 6]
// getDivisibleBy3Or5(

func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}
```swift
// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2,

func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

func getNegative(l: [Int]) -> [Int] {
    return l.filter { $0 < 0 }
}

func getEven(l: [Int]) -> [Int] {
    return l.filter { $0 % 2 == 0 }
}

func getOdd(l: [Int]) -> [Int] {
    return l.filter { $0 % 2 != 0 }
}

func getPrime(l: [Int]) -> [Int] {
    return l.filter { n in
        if n == 1 {
            return false
        }
        for i in 2..<n {
            if n % i == 0 {
                return false
            }
        }
        return true
    }
}

func getPerfect(l: [Int]) -> [Int] {
    return l.filter { n in
        var sum = 0
        for i in 1..<n {
            if n % i == 0 {
                sum += i
            }
        }
        return sum == n
    }
}

func getPerfectSquares(l: [Int]) -> [Int] {
    return l.filter { n in
        var square = 0
        for i in 1...n {
            if i * i == n {
                square = i
            }
        }
        return square != 0
    }
}
```swift
// Return only positive numbers in the array.
// getPositive(l: [-1, 2, -4, 5, 6]) == [2, 5, 6]
// getPositive(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [5, 3, 2, 3, 9, 123, 1]
func getPositive(l: [Int]) -> [Int] {
    return l.filter { $0 > 0 }
}

// Return only negative numbers in the array.
// getNegative(l: [-1, 2, -4, 5, 6]) == [-1, -4]
// getNegative(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [-5, -3, -10]
func getNegative(l: [Int]) -> [Int] {
    return l.filter { $0 < 0 }
}

// Return only even numbers in the array.
// getEven(l: [-1, 2, -4, 5, 6]) == [2, 6]
// getEven(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [2, 0, 6, -10]
func getEven(l: [Int]) -> [Int] {
    return l.filter { $0 % 2 == 0 }
}

// Return only odd numbers in the array.
// getOdd(l: [-1, 2, -4, 5, 6]) == [1, 5]
// getOdd(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == [1, 3, 5, -3, 3, -10]
func getOdd(l: [Int]) -> [Int] {
    return l.filter { $0 % 2 != 0 }
}

// Return only prime numbers in the array.
// getPrime(l: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]) == [2, 3, 5, 7, 11, 13]
func getPrime(l: [Int]) -> [Int] {
    return l.filter { n in
        if n == 1 {
            return false
        }
        for i in 2..<n {
            if n % i == 0 {
                return false
            }
        }
        return true
    }
}

// Return only perfect numbers in the array.
// getPerfect(l: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20]) == [6, 28]
func getPerfect(l: [Int]) -> [Int] {
    return l.filter { n in
        var sum = 0
        for i in 1..<n {
            if n % i == 0 {
                sum += i
            }
        }
        return sum == n
    }
}

// Return only perfect squares in the array.
// getPerfectSquares(l: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20]) == [1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 144, 196]
func getPerfectSquares(l: [Int]) -> [Int] {
    return l.filter { n in
        var square = 0
        for i in 1...n {
            if i * i == n {
                square = i
            }
        }
        return square != 0
    }
}

// Return only perfect cubes in the array.
// getPerfectCubes(l: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20]) == [1, 8, 27, 64, 125, 216, 343, 512, 729, 1000, 1430, 2164]
func getPerfectCubes(l: [

func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}

func sumOfPrimes(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if isPrime(n: i) {
            sum += i
        }
    }
    return sum
}

func sumOfEvens(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

func sumOfOdds(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}

func sumOfMultiples(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 3 == 0 || i % 5 == 0 {
            sum += i
        }
    }
    return sum
}

func sumOfMultiples(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 3 == 0 || i % 5 == 0 && i % 15 != 0 {
            sum += i
        }
    }
    return sum
}
```swift
// Return true if a given number is prime, and false otherwise.
// isPrime(n: 6) == false
// isPrime(n: 101) == true
// isPrime(n: 11) == true
// isPrime(n: 13441) == true
// isPrime(n: 61) == true
// isPrime(n: 4) == false
// isPrime(n: 1) == false
func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}

// Return the sum of all prime numbers up to and including the given number.
// sumOfPrimes(n: 10) == 17
// sumOfPrimes(n: 100) == 1060
// sumOfPrimes(n: 1000) == 10909
// sumOfPrimes(n: 10000) == 109705
func sumOfPrimes(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if isPrime(n: i) {
            sum += i
        }
    }
    return sum
}

// Return the sum of all even numbers up to and including the given number.
// sumOfEvens(n: 10) == 30
// sumOfEvens(n: 100) == 2440
// sumOfEvens(n: 1000) == 249950
// sumOfEvens(n: 10000) == 2499500
func sumOfEvens(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all odd numbers up to and including the given number.
// sumOfOdds(n: 10) == 25
// sumOfOdds(n: 100) == 2445
// sumOfOdds(n: 1000) == 249975
// sumOfOdds(n: 10000) == 2499750
func sumOfOdds(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers up to and including the given number, but only if the number is divisible by 3 or 5.
// sumOfMultiples(n: 10) == 33
// sumOfMultiples(n: 100) == 2445
// sumOfMultiples(n: 1000) == 249975
// sumOfMultiples(n: 10000) == 2499750
func sumOfMultiples(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 3 == 0 || i % 5 == 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers up to and including the given number, but only if the number is divisible by 3 or 5, and only if the number is not divisible by 15.
// sumOfMultiples(n: 10) == 33
// sumOfMultiples(n: 100) == 2445
// sumOfMultiples(n: 1000) == 249975
// sumOfMultiples(n: 10000) == 2499750
func sumOfMultiples(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 3 == 0 || i % 5 == 0 && i % 15 != 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers up to and including the given number, but only if the number is divisible by 3 or 5, and only if the number is not divisible by 15.
// sumOfMultiples(n: 10) == 33
// sumOfMultiples(n: 100) == 2445
// sumOfMultiples(n: 1000) == 249975
// sumOfMultiples(n: 100
func sumOfMultiples(n: Int) -> Int { // invalid redeclaration of 'sumOfMultiples(n:)'

func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Return true if a given number is prime, and false otherwise.
// isPrime(n: 6) == false
// isPrime(n: 101) == true
// isPrime(n: 11) == true
// isPrime(n: 13441) == true
// isPrime(n: 61) == true
// isPrime(n: 4) == false
// isPrime(n: 1) == false
func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    if n == 2 {
        return true
    }
    for i in 2...n-1 {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Return true if a given number is prime, and false otherwise.
// isPrime(n: 6) == false
// isPrime(n: 101) == true
// isPrime(n: 11) == true
// isPrime(n: 13441) == true
// isPrime(n: 61) == true
// isPrime(n: 4) == false
// isPrime(n: 1) == false
func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    if n == 2 {
        return true
    }
    for i in 2...n-1 {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>

func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(n))) {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Return true if a given number is prime, and false otherwise.
// isPrime(n: 6) == false
// isPrime(n: 101) == true
// isPrime(n: 11) == true
// isPrime(n: 13441) == true
// isPrime(n: 61) == true
// isPrime(n: 4) == false
// isPrime(n: 1) == false
func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(n))) {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Return true if a given number is prime, and false otherwise.
// isPrime(n: 6) == false
// isPrime(n: 101) == true
// isPrime(n: 11) == true
// isPrime(n: 13441) == true
// isPrime(n: 61) == true
// isPrime(n: 4) == false
// isPrime(n: 1) == false
func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>

func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    if n == 2 {
        return true
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Return true if a given number is prime, and false otherwise.
// isPrime(n: 6) == false
// isPrime(n: 101) == true
// isPrime(n: 11) == true
// isPrime(n: 13441) == true
// isPrime(n: 61) == true
// isPrime(n: 4) == false
// isPrime(n: 1) == false
func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    if n == 2 {
        return true
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>

func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...n {
        if n % i == 0 {
            return false
        }
    }
    return true
}

func sumPrimes(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if isPrime(n: i) {
            sum += i
        }
    }
    return sum
}

func sumOddNumbers(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}

func sumEvenNumbers(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

func sumNumbers(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}
```swift
// Return true if a given number is prime, and false otherwise.
// isPrime(n: 6) == false
// isPrime(n: 101) == true
// isPrime(n: 11) == true
// isPrime(n: 13441) == true
// isPrime(n: 61) == true
// isPrime(n: 4) == false
// isPrime(n: 1) == false
func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...n {
        if n % i == 0 {
            return false
        }
    }
    return true
}

// Return the sum of all prime numbers less than or equal to n.
// sumPrimes(n: 10) == 17
// sumPrimes(n: 100) == 1060
// sumPrimes(n: 1000) == 10909
// sumPrimes(n: 10000) == 110066
func sumPrimes(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if isPrime(n: i) {
            sum += i
        }
    }
    return sum
}

// Return the sum of all the odd numbers between 1 and n (inclusive).
// sumOddNumbers(n: 10) == 25
// sumOddNumbers(n: 100) == 2475
// sumOddNumbers(n: 1000) == 24999
// sumOddNumbers(n: 10000) == 25004999
func sumOddNumbers(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all the even numbers between 1 and n (inclusive).
// sumEvenNumbers(n: 10) == 30
// sumEvenNumbers(n: 100) == 4950
// sumEvenNumbers(n: 1000) == 50000
// sumEvenNumbers(n: 10000) == 5000000
func sumEvenNumbers(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all the numbers between 1 and n (inclusive).
// sumNumbers(n: 10) == 55
// sumNumbers(n: 100) == 5050
// sumNumbers(n: 1000) == 500500
// sumNumbers(n: 10000) == 50005000
func sumNumbers(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}

// Return the sum of all the numbers between 1 and n (inclusive) that are divisible by x or y.
// sumDivisible(n: 10, x: 3, y: 5) == 33
// sumDivisible(n: 11, x: 3, y: 5) == 34
// sumDivisible(n: 12, x: 3, y: 5) == 33
// sumDivisible(n: 13, x: 3, y: 5) == 34
// sumDivisible(n: 14, x: 3, y: 5) == 33
// sumDivisible(n: 15, x: 3, y: 5) == 34
// sumDivisible(n: 16, x: 3, y: 5) == 33
// sumDivisible(n: 17, x: 3, y: 5) == 34
// sumDivisible(n: 18, x: 3, y: 5) == 33
// sumDivisible(n: 19, x: 3, y: 5) == 34
// sumDivisible(n: 20, x: 3, y: 5) == 33
// sumDivisible(n: 21, x: 3, y: 5) == 34
// sumDiv
 // XCTAssertTrue failed

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    
    return true
}

func sumOfPrimes(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if isPrime(n: i) {
            sum += i
        }
    }
    return sum
}

func sumOfEvens(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

func sumOfOdds(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}
```swift
// Return true if a given number is prime, and false otherwise.
// isPrime(n: 6) == false
// isPrime(n: 101) == true
// isPrime(n: 11) == true
// isPrime(n: 13441) == true
// isPrime(n: 61) == true
// isPrime(n: 4) == false
// isPrime(n: 1) == false
func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    
    return true
}

// Return the sum of all prime numbers up to and including the given number.
// sumOfPrimes(n: 10) == 17
// sumOfPrimes(n: 11) == 23
// sumOfPrimes(n: 13441) == 573639
// sumOfPrimes(n: 61) == 1229
// sumOfPrimes(n: 4) == 5
// sumOfPrimes(n: 1) == 0
func sumOfPrimes(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if isPrime(n: i) {
            sum += i
        }
    }
    return sum
}

// Return the sum of all even numbers up to and including the given number.
// sumOfEvens(n: 10) == 30
// sumOfEvens(n: 11) == 30
// sumOfEvens(n: 13441) == 573639
// sumOfEvens(n: 61) == 1229
// sumOfEvens(n: 4) == 6
// sumOfEvens(n: 1) == 0
func sumOfEvens(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all odd numbers up to and including the given number.
// sumOfOdds(n: 10) == 25
// sumOfOdds(n: 11) == 25
// sumOfOdds(n: 13441) == 573639
// sumOfOdds(n: 61) == 1229
// sumOfOdds(n: 4) == 6
// sumOfOdds(n: 1) == 0
func sumOfOdds(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers up to and including the given number, but only if the number is even.
// sumOfEvens(n: 10) == 30
// sumOfEvens(n: 11) == 30
// sumOfEvens(n: 13441) == 573639
// sumOfEvens(n: 61) == 1229
// sumOfEvens(n: 4) == 6
// sumOfEvens(n: 1) == 0
func sumOfEvens(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers up to and including the given number, but only if the number is odd.
// sumOfOdds(n: 10) == 25
// sumOfOdds(n: 11) == 25
// sumOfOdds(n: 13441) == 573639
// sumOfOdds(n: 61) == 1229
// sumOfOdds(n: 4) == 6
// sumOfOdds(n: 1) == 0
func sumOfOdds(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers up to and including the given number, but only if the number is a multiple of 3.
// sumOfMultiplesOfThree(n: 10) == 30
// sumOfMultiplesOfThree(n: 11

func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    for i in 2...n-1 {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Return true if a given number is prime, and false otherwise.
// isPrime(n: 6) == false
// isPrime(n: 101) == true
// isPrime(n: 11) == true
// isPrime(n: 13441) == true
// isPrime(n: 61) == true
// isPrime(n: 4) == false
// isPrime(n: 1) == false
func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    for i in 2...n-1 {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>

func isPrime(n: Int) -> Bool {
    if n < 2 {
        return false
    }
    
    for i in 2...n/2 {
        if n % i == 0 {
            return false
        }
    }
    return true
}

func sumPrimes(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if isPrime(n: i) {
            sum += i
        }
    }
    return sum
}

func sumEvenNumbers(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

func sumOddNumbers(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}
```swift
// Return true if a given number is prime, and false otherwise.
// isPrime(n: 6) == false
// isPrime(n: 101) == true
// isPrime(n: 11) == true
// isPrime(n: 13441) == true
// isPrime(n: 61) == true
// isPrime(n: 4) == false
// isPrime(n: 1) == false
func isPrime(n: Int) -> Bool {
    if n < 2 {
        return false
    }
    
    for i in 2...n/2 {
        if n % i == 0 {
            return false
        }
    }
    return true
}

// Return the sum of all prime numbers up to and including n.
// sumPrimes(n: 10) == 17
// sumPrimes(n: 100) == 1060
// sumPrimes(n: 1000) == 76127
// sumPrimes(n: 10000) == 664720
// sumPrimes(n: 100000) == 50847534
// sumPrimes(n: 1000000) == 46137327
// sumPrimes(n: 10000000) == 368291338
// sumPrimes(n: 100000000) == 316234622
// sumPrimes(n: 1000000000) == 279591553
func sumPrimes(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if isPrime(n: i) {
            sum += i
        }
    }
    return sum
}

// Return the sum of all even numbers between 1 and n (inclusive).
// sumEvenNumbers(n: 10) == 30
// sumEvenNumbers(n: 100) == 200
// sumEvenNumbers(n: 1000) == 2000
// sumEvenNumbers(n: 10000) == 20000
// sumEvenNumbers(n: 100000) == 200000
// sumEvenNumbers(n: 1000000) == 2000000
// sumEvenNumbers(n: 10000000) == 20000000
// sumEvenNumbers(n: 100000000) == 200000000
// sumEvenNumbers(n: 1000000000) == 2000000000
func sumEvenNumbers(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all odd numbers between 1 and n (inclusive).
// sumOddNumbers(n: 10) == 25
// sumOddNumbers(n: 100) == 2450
// sumOddNumbers(n: 1000) == 24500
// sumOddNumbers(n: 10000) == 245000
// sumOddNumbers(n: 100000) == 2450000
// sumOddNumbers(n: 1000000) == 24500000
// sumOddNumbers(n: 10000000) == 245000000
// sumOddNumbers(n: 100000000) == 2450000000
// sumOddNumbers(n: 1000000000) == 24500000000
func sumOddNumbers(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers between 1 and n (inclusive) that are divisible by either x or y.
// sumByFactors(n: 12, x: 2, y: 3) == 12
// sumByFactors(n: 15, x: 2, y: 4) == 12
// sumByFactors(n: 12, x: 4,

func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
        }
        i += 1
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the indicies that are not divisible by three, while its values at the indicies that are divisible by three are equal
// to the values of the corresponding indicies of l, but sorted.
// sortThird(l: [1, 2, 3]) == [1, 2, 3]
// sortThird(l: [5, 6, 3, 4, 8, 9, 2]) == [2, 6, 3, 4, 8, 9, 5]
func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
        }
        i += 1
    }
    return l
}
<|file_separator|>
 // XCTAssertTrue failed

func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
        }
        i += 1
    }
    l.sort()
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the indicies that are not divisible by three, while its values at the indicies that are divisible by three are equal
// to the values of the corresponding indicies of l, but sorted.
// sortThird(l: [1, 2, 3]) == [1, 2, 3]
// sortThird(l: [5, 6, 3, 4, 8, 9, 2]) == [2, 6, 3, 4, 8, 9, 5]
func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
        }
        i += 1
    }
    l.sort()
    return l
}
<|file_separator|>
 // XCTAssertTrue failed

func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
            l.remove(at: i)
        }
        i += 1
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the indicies that are not divisible by three, while its values at the indicies that are divisible by three are equal
// to the values of the corresponding indicies of l, but sorted.
// sortThird(l: [1, 2, 3]) == [1, 2, 3]
// sortThird(l: [5, 6, 3, 4, 8, 9, 2]) == [2, 6, 3, 4, 8, 9, 5]
func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
            l.remove(at: i)
        }
        i += 1
    }
    return l
}
<|file_separator|>
 // XCTAssertTrue failed

func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
            l.remove(at: i)
            i -= 1
        }
        i += 1
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the indicies that are not divisible by three, while its values at the indicies that are divisible by three are equal
// to the values of the corresponding indicies of l, but sorted.
// sortThird(l: [1, 2, 3]) == [1, 2, 3]
// sortThird(l: [5, 6, 3, 4, 8, 9, 2]) == [2, 6, 3, 4, 8, 9, 5]
func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
            l.remove(at: i)
            i -= 1
        }
        i += 1
    }
    return l
}
<|file_separator|>
 // XCTAssertTrue failed

func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
        }
        i += 1
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the indicies that are not divisible by three, while its values at the indicies that are divisible by three are equal
// to the values of the corresponding indicies of l, but sorted.
// sortThird(l: [1, 2, 3]) == [1, 2, 3]
// sortThird(l: [5, 6, 3, 4, 8, 9, 2]) == [2, 6, 3, 4, 8, 9, 5]
func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
        }
        i += 1
    }
    return l
}
<|file_separator|>
 // XCTAssertTrue failed

func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
        }
        i += 1
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the indicies that are not divisible by three, while its values at the indicies that are divisible by three are equal
// to the values of the corresponding indicies of l, but sorted.
// sortThird(l: [1, 2, 3]) == [1, 2, 3]
// sortThird(l: [5, 6, 3, 4, 8, 9, 2]) == [2, 6, 3, 4, 8, 9, 5]
func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
        }
        i += 1
    }
    return l
}
<|file_separator|>
 // XCTAssertTrue failed

func sortThird(l: [Int]) -> [Int] {
    var l = l
    var l_sorted = l
    l_sorted.sort()
    for i in 0..<l.count {
        if i % 3 == 0 {
            l[i] = l_sorted[i]
        }
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the indicies that are not divisible by three, while its values at the indicies that are divisible by three are equal
// to the values of the corresponding indicies of l, but sorted.
// sortThird(l: [1, 2, 3]) == [1, 2, 3]
// sortThird(l: [5, 6, 3, 4, 8, 9, 2]) == [2, 6, 3, 4, 8, 9, 5]
func sortThird(l: [Int]) -> [Int] {
    var l = l
    var l_sorted = l
    l_sorted.sort()
    for i in 0..<l.count {
        if i % 3 == 0 {
            l[i] = l_sorted[i]
        }
    }
    return l
}
<|file_separator|>
 // XCTAssertTrue failed

func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
            var j = i + 1
            while j < l.count {
                if j % 3 == 0 {
                    l[j] = l[j]
                } else {
                    if l[i] > l[j] {
                        let temp = l[i]
                        l[i] = l[j]
                        l[j] = temp
                    }
                }
                j += 1
            }
        }
        i += 1
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the indicies that are not divisible by three, while its values at the indicies that are divisible by three are equal
// to the values of the corresponding indicies of l, but sorted.
// sortThird(l: [1, 2, 3]) == [1, 2, 3]
// sortThird(l: [5, 6, 3, 4, 8, 9, 2]) == [2, 6, 3, 4, 8, 9, 5]
func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
            var j = i + 1
            while j < l.count {
                if j % 3 == 0 {
                    l[j] = l[j]
                } else {
                    if l[i] > l[j] {
                        let temp = l[i]
                        l[i] = l[j]
                        l[j] = temp
                    }
                }
                j += 1
            }
        }
        i += 1
    }
    return l
}
<|file_separator|>
 // XCTAssertTrue failed

func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
            l.remove(at: i)
        }
        i += 1
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the indicies that are not divisible by three, while its values at the indicies that are divisible by three are equal
// to the values of the corresponding indicies of l, but sorted.
// sortThird(l: [1, 2, 3]) == [1, 2, 3]
// sortThird(l: [5, 6, 3, 4, 8, 9, 2]) == [2, 6, 3, 4, 8, 9, 5]
func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
            l.remove(at: i)
        }
        i += 1
    }
    return l
}
<|file_separator|>
 // XCTAssertTrue failed

func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
            l.remove(at: i)
        }
        i += 1
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the indicies that are not divisible by three, while its values at the indicies that are divisible by three are equal
// to the values of the corresponding indicies of l, but sorted.
// sortThird(l: [1, 2, 3]) == [1, 2, 3]
// sortThird(l: [5, 6, 3, 4, 8, 9, 2]) == [2, 6, 3, 4, 8, 9, 5]
func sortThird(l: [Int]) -> [Int] {
    var l = l
    var i = 0
    while i < l.count {
        if i % 3 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i]
            l.remove(at: i)
        }
        i += 1
    }
    return l
}
<|file_separator|>
 // XCTAssertTrue failed

func unique(l: [Int]) -> [Int] {
    var unique = [Int]()
    for i in l {
        if !unique.contains(i) {
            unique.append(i)
        }
    }
    return unique
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}
```swift
// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    var unique = [Int]()
    for i in l {
        if !unique.contains(i) {
            unique.append(i)
        }
    }
    return unique
}

// Return the sum of all elements in an array
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 134
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 134
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 134
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 134
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 134
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 134
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 134
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 134
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 134
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all
func sum(l: [Int]) -> Int { // invalid redeclaration of 'sum(l:)'

func unique(l: [Int]) -> [Int] {
  var result = [Int]()
  var set = Set<Int>()
  for i in l {
    if !set.contains(i) {
      set.insert(i)
      result.append(i)
    }
  }
  return result
}

func firstNonRepeating(l: [Int]) -> Int {
  var set = Set<Int>()
  for i in l {
    if !set.contains(i) {
      set.insert(i)
    } else {
      set.remove(i)
    }
  }
  return set.first!
}

func firstRepeating(l: [Int]) -> Int {
  var set = Set<Int>()
  for i in l {
    if set.contains(i) {
      return i
    } else {
      set.insert(i)
    }
  }
  return -1
}

func firstNonRepeating(s: String) -> String {
  var set = Set<Character>()
  for i in s {
    if !set.contains(i) {
      set.insert(i)
    } else {
      set.remove(i)
    }
  }
  return String(set.first!)
}

func firstRepeating(s: String) -> String {
  var set = Set<Character>()
  for i in s {
    if set.contains(i) {
      return String(i)
    } else {
      set.insert(i)
    }
  }
  return ""
}
```swift
// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var result = [Int]()
  var set = Set<Int>()
  for i in l {
    if !set.contains(i) {
      set.insert(i)
      result.append(i)
    }
  }
  return result
}

// Return the first non-repeating element in an array
// firstNonRepeating(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 0
func firstNonRepeating(l: [Int]) -> Int {
  var set = Set<Int>()
  for i in l {
    if !set.contains(i) {
      set.insert(i)
    } else {
      set.remove(i)
    }
  }
  return set.first!
}

// Return the first repeating element in an array
// firstRepeating(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 5
func firstRepeating(l: [Int]) -> Int {
  var set = Set<Int>()
  for i in l {
    if set.contains(i) {
      return i
    } else {
      set.insert(i)
    }
  }
  return -1
}

// Return the first non-repeating element in a string
// firstNonRepeating(s: "hello") == "h"
func firstNonRepeating(s: String) -> String {
  var set = Set<Character>()
  for i in s {
    if !set.contains(i) {
      set.insert(i)
    } else {
      set.remove(i)
    }
  }
  return String(set.first!)
}

// Return the first repeating element in a string
// firstRepeating(s: "hello") == "l"
func firstRepeating(s: String) -> String {
  var set = Set<Character>()
  for i in s {
    if set.contains(i) {
      return String(i)
    } else {
      set.insert(i)
    }
  }
  return ""
}

// Return the first non-repeating element in a string
// firstNonRepeating(s: "hello") == "h"
func firstNonRepeating(s: String) -> String {
  var set = Set<Character>()
  for i in s {
    if !set.contains(i) {
      set.insert(i)
    } else {
      set.remove(i)
    }
  }
  return String(set.first!)
}

// Return the first repeating element in a string
// firstRepeating(s: "hello") == "l"
func firstRepeating(s: String) -> String {
  var set = Set<Character>()
  for i in s {
    if set.contains(i) {
      return String(i)
    } else {
      set.insert(i)
    }
  }
  return ""
}

// Return the first non-repeating element in a string
// firstNonRepeating(s: "hello") == "h"
func firstNonRepeating(s: String) -> String {
  var set = Set<Character>()
  for i in s {
    if !set.contains(i) {
      set.insert(i)
    } else {
      set.remove(i)
    }
  }
  return String(set.first!)
}

// Return the first repeating element in a string
// firstRepeating(s: "hello") == "l"
func firstRepeating(s: String) -> String {
  var set = Set<Character>()
  for i in s {
    if set.contains(i) {
      return String(i)
    } else {
      set.insert(i)
    }
  }
  return ""
}

// Return the first non-repeating element in a string
// firstNonRepeating(s: "hello") == "h"
func firstNonRepeating(s: String) -> String {
  var set = Set<Character>()
  for i in s {
    if !set.contains(i) {
      set.insert(i)
    } else {
      set.remove(i)
    }
  }
  return String(set.first!)
}

// Return the first repeating element
 // XCTAssertTrue failed

func unique(l: [Int]) -> [Int] {
    var unique = [Int]()
    for i in l {
        if !unique.contains(i) {
            unique.append(i)
        }
    }
    return unique
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}
```swift
// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    var unique = [Int]()
    for i in l {
        if !unique.contains(i) {
            unique.append(i)
        }
    }
    return unique
}

// Return the sum of all elements in an array
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 154
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 154
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 154
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 154
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 154
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 154
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 154
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 154
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in an array that are greater than 10
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 154
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i > 10 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all
func sum(l: [Int]) -> Int { // invalid redeclaration of 'sum(l:)'

func unique(l: [Int]) -> [Int] {
    var unique = [Int]()
    for i in l {
        if !unique.contains(i) {
            unique.append(i)
        }
    }
    return unique
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
        if sum > 100 {
            return sum
        }
    }
    return sum
}
```swift
// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    var unique = [Int]()
    for i in l {
        if !unique.contains(i) {
            unique.append(i)
        }
    }
    return unique
}

// Return the sum of all numbers in an array
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 146
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

// Return the sum of all numbers in an array, but only if the sum is less than 100
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 146
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
        if sum > 100 {
            return sum
        }
    }
    return sum
}

// Return the sum of all numbers in an array, but only if the sum is less than 100
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 146
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
        if sum > 100 {
            return sum
        }
    }
    return sum
}

// Return the sum of all numbers in an array, but only if the sum is less than 100
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 146
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
        if sum > 100 {
            return sum
        }
    }
    return sum
}

// Return the sum of all numbers in an array, but only if the sum is less than 100
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 146
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
        if sum > 100 {
            return sum
        }
    }
    return sum
}

// Return the sum of all numbers in an array, but only if the sum is less than 100
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 146
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
        if sum > 100 {
            return sum
        }
    }
    return sum
}

// Return the sum of all numbers in an array, but only if the sum is less than 100
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 146
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
        if sum > 100 {
            return sum
        }
    }
    return sum
}

// Return the sum of all numbers in an array, but only if the sum is less than 100
// sum(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == 146
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
        if sum > 100 {
            return sum
        }
    }
    return sum
}

// Return the sum of all numbers in an array, but only if the sum is less than 100
// sum(l: [5, 3, 5, 
func sum(l: [Int]) -> Int { // invalid redeclaration of 'sum(l:)'

func unique(l: [Int]) -> [Int] {
    return l.reduce([], { (acc, i) -> [Int] in
        if acc.contains(i) {
            return acc
        } else {
            return acc + [i]
        }
    })
}
```swift
// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    return l.reduce([], { (acc, i) -> [Int] in
        if acc.contains(i) {
            return acc
        } else {
            return acc + [i]
        }
    })
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    return l.reduce([], { (acc, i) -> [Int] in
        if acc.contains(i) {
            return acc
        } else {
            return acc + [i]
        }
    })
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    return l.reduce([], { (acc, i) -> [Int] in
        if acc.contains(i) {
            return acc
        } else {
            return acc + [i]
        }
    })
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    return l.reduce([], { (acc, i) -> [Int] in
        if acc.contains(i) {
            return acc
        } else {
            return acc + [i]
        }
    })
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    return l.reduce([], { (acc, i) -> [Int] in
        if acc.contains(i) {
            return acc
        } else {
            return acc + [i]
        }
    })
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    return l.reduce([], { (acc, i) -> [Int] in
        if acc.contains(i) {
            return acc
        } else {
            return acc + [i]
        }
    })
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    return l.reduce([], { (acc, i) -> [Int] in
        if acc.contains(i) {
            return acc
        } else {
            return acc + [i]
        }
    })
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    return l.reduce([], { (acc, i) -> [Int] in
        if acc.contains(i) {
            return acc
        } else {
            return acc + [i]
        }
    })
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0
 // XCTAssertTrue failed

func unique(l: [Int]) -> [Int] {
    var unique = [Int]()
    for i in l {
        if !unique.contains(i) {
            unique.append(i)
        }
    }
    return unique.sorted()
}
```swift
// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    var unique = [Int]()
    for i in l {
        if !unique.contains(i) {
            unique.append(i)
        }
    }
    return unique.sorted()
}
<|file_separator|>

func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}
```swift
// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i
 // XCTAssertTrue failed

func unique(l: [Int]) -> [Int] {
    var unique = [Int]()
    for i in l {
        if !unique.contains(i) {
            unique.append(i)
        }
    }
    return unique.sorted()
}
```swift
// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
    var unique = [Int]()
    for i in l {
        if !unique.contains(i) {
            unique.append(i)
        }
    }
    return unique.sorted()
}
<|file_separator|>

func unique(l: [Int]) -> [Int] {
  var result = [Int]()
  var seen = [Int: Bool]()
  for i in l {
    if seen[i] == nil {
      seen[i] = true
      result.append(i)
    }
  }
  return result
}
```swift
// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var result = [Int]()
  var seen = [Int: Bool]()
  for i in l {
    if seen[i] == nil {
      seen[i] = true
      result.append(i)
    }
  }
  return result
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var result = [Int]()
  var seen = [Int: Bool]()
  for i in l {
    if seen[i] == nil {
      seen[i] = true
      result.append(i)
    }
  }
  return result
}
<|file_separator|>
 // XCTAssertTrue failed

func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}
```swift
// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i) {
      unique.append(i)
    }
  }
  return unique
}

// Return sorted unique elements in an array
// unique(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [0, 2, 3, 5, 9, 123]
func unique(l: [Int]) -> [Int] {
  var unique = [Int]()
  for i in l {
    if !unique.contains(i
 // XCTAssertTrue failed

func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

func sumEven(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

func sumOdd(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}

func sumAllExceptFirstAndLast(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i]
    }
    return sum
}

func sumAllExceptFirstAndLastDoubled(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i] * 2
    }
    return sum
}
```swift
// Return maximum element in the array.
// maxElement(l: [1, 2, 3]) == 3
// maxElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 123
func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

// Return minimum element in the array.
// minElement(l: [1, 2, 3]) == 1
// minElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == -10
func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

// Return the sum of all elements in the array.
// sum(l: [1, 2, 3]) == 6
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 128
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

// Return the sum of all even elements in the array.
// sumEven(l: [1, 2, 3]) == 2
// sumEven(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 10
func sumEven(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all odd elements in the array.
// sumOdd(l: [1, 2, 3]) == 2
// sumOdd(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 10
func sumOdd(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in the array, except the first and last elements,
// where the first and last elements are removed, e.g. [1, 2, 3] -> 2.
// sumAllExceptFirstAndLast(l: [1, 2, 3]) == 2
// sumAllExceptFirstAndLast(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 128
func sumAllExceptFirstAndLast(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i]
    }
    return sum
}

// Return the sum of all elements in the array, except the first and last elements,
// where the first and last elements are removed, and the elements in the middle doubled,
// e.g. [1, 2, 3] -> 2.
// sumAllExceptFirstAndLastDoubled(l: [1, 2, 3]) == 2
// sumAllExceptFirstAndLastDoubled(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 128
func sumAllExceptFirstAndLastDoubled(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i] * 2
    }
    return sum
}

// Return the sum of all elements in the array, except the first and last elements,
// where the first and last elements are removed, and the elements in the middle doubled,
// and the sum of all even elements in the array, e.g. [1, 2, 3] -> 2.
// sumAllExceptFirstAndLast

func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i]
    }
    return sum
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 0..<l.count-1 {
        sum += l[i]
    }
    return sum
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count {
        sum += l[i]
    }
    return sum
}
```swift
// Return maximum element in the array.
// maxElement(l: [1, 2, 3]) == 3
// maxElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 123
func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

// Return minimum element in the array.
// minElement(l: [1, 2, 3]) == 1
// minElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == -10
func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

// Return the sum of all elements in the array.
// sum(l: [1, 2, 3]) == 6
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 128
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

// Return the sum of all elements in the array, except for the first and last elements.
// sum(l: [1, 2, 3]) == 2
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 128
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i]
    }
    return sum
}

// Return the sum of all elements in the array, except for the last element.
// sum(l: [1, 2, 3]) == 5
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 128
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 0..<l.count-1 {
        sum += l[i]
    }
    return sum
}

// Return the sum of all elements in the array, except for the first element.
// sum(l: [1, 2, 3]) == 4
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 128
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count {
        sum += l[i]
    }
    return sum
}

// Return the sum of all elements in the array, except for the first and last elements.
// sum(l: [1, 2, 3]) == 3
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 128
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i]
    }
    return sum
}

// Return the sum of all elements in the array, except for the last and first elements.
// sum(l: [1, 2, 3]) == 4
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 128
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i]
    }
    return sum
}

// Return the sum of all elements in the array, except for the last and first elements.
// sum(l: [1, 2, 3]) == 3
// sum(l: [5, 
func sum(l: [Int]) -> Int { // invalid redeclaration of 'sum(l:)'
func sum(l: [Int]) -> Int { // invalid redeclaration of 'sum(l:)'
func sum(l: [Int]) -> Int { // invalid redeclaration of 'sum(l:)'

func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 0..<l.count {
        sum += l[i]
    }
    return sum
}

func average(l: [Int]) -> Int {
    var sum = 0
    for i in 0..<l.count {
        sum += l[i]
    }
    return sum / l.count
}

func product(l: [Int]) -> Int {
    var product = 1
    for i in 0..<l.count {
        product *= l[i]
    }
    return product
}

func count(l: [Int]) -> Int {
    return l.count
}

func countGreaterThan(l: [Int], v: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] > v {
            count += 1
        }
    }
    return count
}

func countLessThan(l: [Int], v: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] < v {
            count += 1
        }
    }
    return count
}
```swift
// Return maximum element in the array.
// maxElement(l: [1, 2, 3]) == 3
// maxElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 123
func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

// Return minimum element in the array.
// minElement(l: [1, 2, 3]) == 1
// minElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == -10
func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

// Return the sum of all elements in the array.
// sum(l: [1, 2, 3]) == 6
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 142
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 0..<l.count {
        sum += l[i]
    }
    return sum
}

// Return the average of all elements in the array.
// average(l: [1, 2, 3]) == 2
// average(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 2
func average(l: [Int]) -> Int {
    var sum = 0
    for i in 0..<l.count {
        sum += l[i]
    }
    return sum / l.count
}

// Return the product of all elements in the array.
// product(l: [1, 2, 3]) == 6
// product(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == -360
func product(l: [Int]) -> Int {
    var product = 1
    for i in 0..<l.count {
        product *= l[i]
    }
    return product
}

// Return the number of elements in the array.
// count(l: [1, 2, 3]) == 3
// count(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 11
func count(l: [Int]) -> Int {
    return l.count
}

// Return the number of elements in the array that are greater than the given value.
// countGreaterThan(l: [1, 2, 3], v: 2) == 2
// countGreaterThan(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10], v: 0) == 10
func countGreaterThan(l: [Int], v: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] > v {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array that are less than the given value.
// countLessThan(l: [1, 2, 3], v: 2) == 1
// countLessThan(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10], v: 0) == 10
func countLessThan(l: [Int], v: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] < v {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array that are equal to the given value.
// countEqualTo(l: [1, 2, 3], v: 2) == 1
// countEqualTo

func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

func lessThanElement(l: [Int], e: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] < e {
            count += 1
        }
    }
    return count
}

func greaterThanElement(l: [Int], e: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] > e {
            count += 1
        }
    }
    return count
}

func equalToElement(l: [Int], e: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] == e {
            count += 1
        }
    }
    return count
}

func notEqualToElement(l: [Int], e: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] != e {
            count += 1
        }
    }
    return count
}

func lessThanOrEqualToElement(l: [Int], e: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] <= e {
            count += 1
        }
    }
    return count
}
```swift
// Return maximum element in the array.
// maxElement(l: [1, 2, 3]) == 3
// maxElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 123
func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

// Return the number of elements in the array that are less than the given element.
// lessThanElement(l: [1, 2, 3], e: 2) == 1
// lessThanElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10], e: -10) == 11
func lessThanElement(l: [Int], e: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] < e {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array that are greater than the given element.
// greaterThanElement(l: [1, 2, 3], e: 2) == 2
// greaterThanElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10], e: 1) == 10
func greaterThanElement(l: [Int], e: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] > e {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array that are equal to the given element.
// equalToElement(l: [1, 2, 3], e: 2) == 1
// equalToElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10], e: 1) == 1
func equalToElement(l: [Int], e: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] == e {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array that are not equal to the given element.
// notEqualToElement(l: [1, 2, 3], e: 2) == 2
// notEqualToElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10], e: 1) == 9
func notEqualToElement(l: [Int], e: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] != e {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array that are less than or equal to the given element.
// lessThanOrEqualToElement(l: [1, 2, 3], e: 2) == 2
// lessThanOrEqualToElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10], e: 1) == 10
func lessThanOrEqualToElement(l: [Int], e: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] <= e {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array that are greater than or equal to the given element.
// greaterThanOrEqualToElement(l: [1, 2, 3], e: 2) == 2
// greaterThanOrEqualToElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10], e: 1) == 11
func greaterThanOrEqualToElement(l: [Int], e: Int) -> Int {
    var count = 0
    for i in 0..<l.count {
        if l[i] >= e {
            count += 1
        }
    }
    return count

func maxElement(l: [Int]) -> Int {
    return l.max()!
}

func minElement(l: [Int]) -> Int {
    return l.min()!
}

func sumElements(l: [Int]) -> Int {
    return l.reduce(0, +)
}

func averageElements(l: [Int]) -> Double {
    return Double(sumElements(l: l)) / Double(l.count)
}

func sumEvenElements(l: [Int]) -> Int {
    return l.filter { $0 % 2 == 0 }.reduce(0, +)
}

func sumOddElements(l: [Int]) -> Int {
    return l.filter { $0 % 2 == 1 }.reduce(0, +)
}

func sumElementsExceptFirstAndLast(l: [Int]) -> Int {
    return l.dropFirst().dropLast().reduce(0, +)
}

func sumElementsExceptFirstAndLast(l: [Int]) -> Int {
    return l.dropFirst().dropLast().filter { $0 % 2 == 0 }.reduce(0, +)
}

func sumElementsExceptFirstAndLast(l: [Int]) -> Int {
    return l.dropFirst().dropLast().filter { $0 % 2 == 1 }.reduce(0, +)
}
```swift
// Return maximum element in the array.
// maxElement(l: [1, 2, 3]) == 3
// maxElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 123
func maxElement(l: [Int]) -> Int {
    return l.max()!
}

// Return minimum element in the array.
// minElement(l: [1, 2, 3]) == 1
// minElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == -10
func minElement(l: [Int]) -> Int {
    return l.min()!
}

// Return the sum of all elements in the array.
// sumElements(l: [1, 2, 3]) == 6
// sumElements(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 145
func sumElements(l: [Int]) -> Int {
    return l.reduce(0, +)
}

// Return the average of all elements in the array.
// averageElements(l: [1, 2, 3]) == 2
// averageElements(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 2.1
func averageElements(l: [Int]) -> Double {
    return Double(sumElements(l: l)) / Double(l.count)
}

// Return the sum of all even elements in the array.
// sumEvenElements(l: [1, 2, 3]) == 2
// sumEvenElements(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 6
func sumEvenElements(l: [Int]) -> Int {
    return l.filter { $0 % 2 == 0 }.reduce(0, +)
}

// Return the sum of all odd elements in the array.
// sumOddElements(l: [1, 2, 3]) == 2
// sumOddElements(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 10
func sumOddElements(l: [Int]) -> Int {
    return l.filter { $0 % 2 == 1 }.reduce(0, +)
}

// Return the sum of all elements in the array, except for the first and last elements,
// which are always odd.
// sumElementsExceptFirstAndLast(l: [1, 2, 3]) == 2
// sumElementsExceptFirstAndLast(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 145
func sumElementsExceptFirstAndLast(l: [Int]) -> Int {
    return l.dropFirst().dropLast().reduce(0, +)
}

// Return the sum of all elements in the array, except for the first and last elements,
// which are always even.
// sumElementsExceptFirstAndLast(l: [1, 2, 3]) == 2
// sumElementsExceptFirstAndLast(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 145
func sumElementsExceptFirstAndLast(l: [Int]) -> Int {
    return l.dropFirst().dropLast().filter { $0 % 2 == 0 }.reduce(0, +)
}

// Return the sum of all elements in the array, except for the first and last elements,
// which are always odd.
// sumElementsExceptFirstAndLast(l: [1, 2, 3]) == 2
// sumElementsExceptFirstAndLast(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 145
func sumElementsExceptFirstAndLast(l: [Int]) -> Int {
    return l.dropFirst().dropLast().filter { $0 % 2 == 1 }.reduce(0, +)
}

// Return the sum of all elements in the array, except for the first and last elements,
// which are always
func sumElementsExceptFirstAndLast(l: [Int]) -> Int { // invalid redeclaration of 'sumElementsExceptFirstAndLast(l:)'
func sumElementsExceptFirstAndLast(l: [Int]) -> Int { // invalid redeclaration of 'sumElementsExceptFirstAndLast(l:)'

func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

func average(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum / l.count
}

func sumEven(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

func sumOdd(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}

func sumOddExceptFirstAndLast(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count - 1 {
        if l[i] % 2 != 0 {
            sum += l[i]
        }
    }
    return sum
}
```swift
// Return maximum element in the array.
// maxElement(l: [1, 2, 3]) == 3
// maxElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 123
func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

// Return minimum element in the array.
// minElement(l: [1, 2, 3]) == 1
// minElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == -10
func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

// Return the sum of all elements in the array.
// sum(l: [1, 2, 3]) == 6
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 128
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

// Return the average of all elements in the array.
// average(l: [1, 2, 3]) == 2
// average(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 1
func average(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum / l.count
}

// Return the sum of all even elements in the array.
// sumEven(l: [1, 2, 3]) == 2
// sumEven(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 10
func sumEven(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all odd elements in the array.
// sumOdd(l: [1, 2, 3]) == 2
// sumOdd(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 10
func sumOdd(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        if i % 2 != 0 {
            sum += i
        }
    }
    return sum
}

// Return the sum of all elements in the array, except for the first and last elements,
// which are always odd.
// sumOddExceptFirstAndLast(l: [1, 2, 3]) == 2
// sumOddExceptFirstAndLast(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 10
func sumOddExceptFirstAndLast(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count - 1 {
        if l[i] % 2 != 0 {
            sum += l[i]
        }
    }
    return sum
}

// Return the sum of all elements in the array, except for the first and last elements,
// which are always even.
// sumEvenExceptFirstAndLast(l: [1, 2, 3]) == 2
// sumEvenExceptFirstAndLast(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 10
func sumEvenExceptFirstAndLast(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count - 1 {
        if l[i] % 2 == 0 {
            

func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 0..<l.count {
        sum += l[i]
    }
    return sum
}

func product(l: [Int]) -> Int {
    var product = 1
    for i in 0..<l.count {
        product *= l[i]
    }
    return product
}

func average(l: [Int]) -> Int {
    var sum = 0
    for i in 0..<l.count {
        sum += l[i]
    }
    return sum / l.count
}

func median(l: [Int]) -> Int {
    var sorted = l
    sorted.sort()
    if l.count % 2 == 0 {
        return (sorted[l.count / 2 - 1] + sorted[l.count / 2]) / 2
    } else {
        return sorted[l.count / 2]
    }
}

func mode(l: [Int]) -> Int {
    var mode = l[0]
    var count = 0
    for i in 0..<l.count {
        var currentCount = 0
        for j in 0..<l.count {
            if l[i] == l[j] {
                currentCount += 1
            }
        }
        if currentCount > count {
            count = currentCount
            mode = l[i]
        }
    }
    return mode
}
```swift
// Return maximum element in the array.
// maxElement(l: [1, 2, 3]) == 3
// maxElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 123
func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

// Return minimum element in the array.
// minElement(l: [1, 2, 3]) == 1
// minElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == -10
func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

// Return sum of all elements in the array.
// sum(l: [1, 2, 3]) == 6
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 164
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in 0..<l.count {
        sum += l[i]
    }
    return sum
}

// Return product of all elements in the array.
// product(l: [1, 2, 3]) == 6
// product(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == -360
func product(l: [Int]) -> Int {
    var product = 1
    for i in 0..<l.count {
        product *= l[i]
    }
    return product
}

// Return average of all elements in the array.
// average(l: [1, 2, 3]) == 2
// average(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 1
func average(l: [Int]) -> Int {
    var sum = 0
    for i in 0..<l.count {
        sum += l[i]
    }
    return sum / l.count
}

// Return median of all elements in the array.
// median(l: [1, 2, 3]) == 2
// median(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 3
func median(l: [Int]) -> Int {
    var sorted = l
    sorted.sort()
    if l.count % 2 == 0 {
        return (sorted[l.count / 2 - 1] + sorted[l.count / 2]) / 2
    } else {
        return sorted[l.count / 2]
    }
}

// Return mode of all elements in the array.
// mode(l: [1, 2, 3]) == 1
// mode(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == -3
func mode(l: [Int]) -> Int {
    var mode = l[0]
    var count = 0
    for i in 0..<l.count {
        var currentCount = 0
        for j in 0..<l.count {
            if l[i] == l[j] {
                currentCount += 1
            }
        }
        if currentCount > count {
            count = currentCount
            mode = l[i]
        }
    }
    return mode
}

// Return range of all elements in the array.
// range(l: [1, 2, 3]) == 2
// range(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 123
func range(l: [Int]) -> Int {
    var max = l[0]
    var min = l[

func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

func sumAllExceptFirstAndLast(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i]
    }
    return sum
}
```swift
// Return maximum element in the array.
// maxElement(l: [1, 2, 3]) == 3
// maxElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 123
func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

// Return minimum element in the array.
// minElement(l: [1, 2, 3]) == 1
// minElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == -10
func minElement(l: [Int]) -> Int {
    var min = l[0]
    for i in 1..<l.count {
        if l[i] < min {
            min = l[i]
        }
    }
    return min
}

// Return the sum of all elements in the array.
// sum(l: [1, 2, 3]) == 6
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 144
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

// Return the sum of all elements in the array except the first and last elements.
// sumAllExceptFirstAndLast(l: [1, 2, 3]) == 2
// sumAllExceptFirstAndLast(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 144
func sumAllExceptFirstAndLast(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i]
    }
    return sum
}

// Return the sum of all elements in the array except the first and last elements.
// sumAllExceptFirstAndLast(l: [1, 2, 3]) == 2
// sumAllExceptFirstAndLast(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 144
func sumAllExceptFirstAndLast(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i]
    }
    return sum
}

// Return the sum of all elements in the array except the first and last elements.
// sumAllExceptFirstAndLast(l: [1, 2, 3]) == 2
// sumAllExceptFirstAndLast(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 144
func sumAllExceptFirstAndLast(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i]
    }
    return sum
}

// Return the sum of all elements in the array except the first and last elements.
// sumAllExceptFirstAndLast(l: [1, 2, 3]) == 2
// sumAllExceptFirstAndLast(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 144
func sumAllExceptFirstAndLast(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<l.count-1 {
        sum += l[i]
    }
    return sum
}

// Return the sum of all elements in the array except the first and last elements.
// sumAllExceptFirstAndLast(l: [1, 2, 3]) == 2
// sumAllExceptFirstAndLast(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 144
func sumAllExceptFirstAndLast(l: [Int]) -> Int {
    var sum = 0
    for i in 1..<

func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

func average(l: [Int]) -> Int {
    return sum(l: l) / l.count
}

func median(l: [Int]) -> Int {
    return l[l.count / 2]
}

func mode(l: [Int]) -> Int {
    var mode = l[0]
    var count = 0
    for i in l {
        if i == mode {
            count += 1
        } else if count < 1 {
            mode = i
            count = 1
        } else {
            count -= 1
        }
    }
    return mode
}

func count(l: [Int]) -> Int {
    return l.count
}

func greaterThanMedian(l: [Int]) -> Int {
    return l.count - l.filter { $0 > median(l: l) }.count
}

func lessThanMedian(l: [Int]) -> Int {
    return l.filter { $0 < median(l: l) }.count
}

func greaterThanMode(l: [Int]) -> Int {
    return l.count - l.filter { $0 > mode(l: l) }.count
}
```swift
// Return maximum element in the array.
// maxElement(l: [1, 2, 3]) == 3
// maxElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 123
func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}

// Return the sum of the array.
// sum(l: [1, 2, 3]) == 6
// sum(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 151
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

// Return the average of the array.
// average(l: [1, 2, 3]) == 2
// average(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 1
func average(l: [Int]) -> Int {
    return sum(l: l) / l.count
}

// Return the median of the array.
// median(l: [1, 2, 3]) == 2
// median(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 3
func median(l: [Int]) -> Int {
    return l[l.count / 2]
}

// Return the mode of the array.
// mode(l: [1, 2, 3]) == 1
// mode(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == -3
func mode(l: [Int]) -> Int {
    var mode = l[0]
    var count = 0
    for i in l {
        if i == mode {
            count += 1
        } else if count < 1 {
            mode = i
            count = 1
        } else {
            count -= 1
        }
    }
    return mode
}

// Return the number of elements in the array.
// count(l: [1, 2, 3]) == 3
// count(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 11
func count(l: [Int]) -> Int {
    return l.count
}

// Return the number of elements in the array that are greater than the median.
// greaterThanMedian(l: [1, 2, 3]) == 0
// greaterThanMedian(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 3
func greaterThanMedian(l: [Int]) -> Int {
    return l.count - l.filter { $0 > median(l: l) }.count
}

// Return the number of elements in the array that are less than the median.
// lessThanMedian(l: [1, 2, 3]) == 2
// lessThanMedian(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 4
func lessThanMedian(l: [Int]) -> Int {
    return l.filter { $0 < median(l: l) }.count
}

// Return the number of elements in the array that are greater than the mode.
// greaterThanMode(l: [1, 2, 3]) == 0
// greaterThanMode(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 3
func greaterThanMode(l: [Int]) -> Int {
    return l.count - l.filter { $0 > mode(l: l) }.count
}

// Return the number of elements in the array that are less than the mode.
// lessThanMode(l: [1, 2, 3]) == 2
// lessThan

func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}
```swift
// Return maximum element in the array.
// maxElement(l: [1, 2, 3]) == 3
// maxElement(l: [5, 3, -5, 2, -3, 3, 9, 0, 123, 1, -10]) == 123
func maxElement(l: [Int]) -> Int {
    var max = l[0]
    for i in 1..<l.count {
        if l[i] > max {
            max = l[i]
        }
    }
    return max
}
<|file_separator|>

func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0...n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Return the number of times the digit 7 appears in integers less than n which are divisible by 11 or 13.
// fizzBuzz(n: 50) == 0
// fizzBuzz(n: 78) == 2
// fizzBuzz(n: 79) == 3
func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0...n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0..<n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Return the number of times the digit 7 appears in integers less than n which are divisible by 11 or 13.
// fizzBuzz(n: 50) == 0
// fizzBuzz(n: 78) == 2
// fizzBuzz(n: 79) == 3
func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0..<n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Return the number of times the digit 7 appears in integers less than n which are divisible by 11 or 13.
// fizzBuzz(n: 50) == 0
// fizzBuzz(n: 78) == 2
// fizzBuzz(n: 79) == 3
func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Return the number of times the digit 7 appears in integers less than n which are divisible by 11 or 13.
// fizzBuzz(n: 50) == 0
// fizzBuzz(n: 78) == 2
// fizzBuzz(n: 79) == 3
func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0..<n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Return the number of times the digit 7 appears in integers less than n which are divisible by 11 or 13.
// fizzBuzz(n: 50) == 0
// fizzBuzz(n: 78) == 2
// fizzBuzz(n: 79) == 3
func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0..<n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Return the number of times the digit 7 appears in integers less than n which are divisible by 11 or 13.
// fizzBuzz(n: 50) == 0
// fizzBuzz(n: 78) == 2
// fizzBuzz(n: 79) == 3
func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0..<n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Return the number of times the digit 7 appears in integers less than n which are divisible by 11 or 13.
// fizzBuzz(n: 50) == 0
// fizzBuzz(n: 78) == 2
// fizzBuzz(n: 79) == 3
func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0..<n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0..<n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Return the number of times the digit 7 appears in integers less than n which are divisible by 11 or 13.
// fizzBuzz(n: 50) == 0
// fizzBuzz(n: 78) == 2
// fizzBuzz(n: 79) == 3
func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0..<n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Return the number of times the digit 7 appears in integers less than n which are divisible by 11 or 13.
// fizzBuzz(n: 50) == 0
// fizzBuzz(n: 78) == 2
// fizzBuzz(n: 79) == 3
func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0..<n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Return the number of times the digit 7 appears in integers less than n which are divisible by 11 or 13.
// fizzBuzz(n: 50) == 0
// fizzBuzz(n: 78) == 2
// fizzBuzz(n: 79) == 3
func fizzBuzz(n: Int) -> Int {
    var count = 0
    for i in 0..<n {
        if i % 11 == 0 || i % 13 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i + 1]
        }
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i]
        } else {
            l[i] = l[i + 1]
        }
    }
    return l
}
<|file_separator|>
 // XCTAssertTrue failed

func sortEven(l: [Int]) -> [Int] {
  // TODO: implement this function
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
  // TODO: implement this function
}
<|file_separator|>
} // missing return in global function expected to return '[Int]'

func sortEven(l: [Int]) -> [Int] {
    var result = l
    for i in 0..<l.count {
        if i % 2 == 1 {
            result[i] = l[i]
        }
    }
    result.sort()
    for i in 0..<l.count {
        if i % 2 == 0 {
            result[i] = l[i]
        }
    }
    return result
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var result = l
    for i in 0..<l.count {
        if i % 2 == 1 {
            result[i] = l[i]
        }
    }
    result.sort()
    for i in 0..<l.count {
        if i % 2 == 0 {
            result[i] = l[i]
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func sortEven(l: [Int]) -> [Int] {
    var even = [Int]()
    var odd = [Int]()
    for i in 0..<l.count {
        if i % 2 == 0 {
            even.append(l[i])
        } else {
            odd.append(l[i])
        }
    }
    even.sort()
    odd.sort()
    var result = [Int]()
    for i in 0..<odd.count {
        result.append(odd[i])
        result.append(even[i])
    }
    return result
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var even = [Int]()
    var odd = [Int]()
    for i in 0..<l.count {
        if i % 2 == 0 {
            even.append(l[i])
        } else {
            odd.append(l[i])
        }
    }
    even.sort()
    odd.sort()
    var result = [Int]()
    for i in 0..<odd.count {
        result.append(odd[i])
        result.append(even[i])
    }
    return result
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var even = [Int]()
    var odd = [Int]()
    for i in 0..<l.count {
        if i % 2 == 0 {
            even.append(l[i])
        } else {
            odd.append(l[i])
        }
    }
    even.sort()
    odd.sort()
    var result = [Int]()
    for i in 0..<odd.count {
        result.append(odd[i])
        result.append(even[i])
    }
    return result
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var even = [Int]()
    var odd = [Int]()
    for i in 0..<l.count {
        if i % 2 == 0 {
            even.append(l[i])
        } else {
            odd.append(l[i])
        }
    }
    even.sort()
    odd.sort()
    var result = [Int]()
    for i in 0..<odd.count {
        result.append(odd[i])
        result.append(even[i])
    }
    return result
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var even = [Int]()
    var odd = [Int]()
    for i in 0..<l.count {
        if i % 2 == 0 {
            even.append(l[i])
        } else {
            odd.append(l[i])
        }
    }
    even.sort()
    odd.sort()
    var result = [Int]()
    for i in 0..<odd.count {
        result.append(odd[i])
        result.append(even[i])
    }
    return result
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4
 // XCTAssertTrue failed

func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}

// This function takes an array l and returns an array l
 // Fatal error: Index out of range

func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    return l
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    return l
}
<|file_separator|>
 // Fatal error: Index out of range

func sortEven(l: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<l.count {
        if i % 2 == 0 {
            result.append(l[i])
        }
    }
    result.sort()
    for i in 0..<l.count {
        if i % 2 == 1 {
            result.append(l[i])
        }
    }
    return result
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<l.count {
        if i % 2 == 0 {
            result.append(l[i])
        }
    }
    result.sort()
    for i in 0..<l.count {
        if i % 2 == 1 {
            result.append(l[i])
        }
    }
    return result
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<l.count {
        if i % 2 == 0 {
            result.append(l[i])
        }
    }
    result.sort()
    for i in 0..<l.count {
        if i % 2 == 1 {
            result.append(l[i])
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}

func sortOdd(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 1 {
            l[i] = l[i - 1]
        }
    }
    l.sort()
    return l
}

func sortEvenOdd(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 1 {
            l[i] = l[i - 1]
        }
    }
    l.sort()
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the even indicies, while its values at the odd indicies are equal
// to the values of the odd indicies of l, but sorted.
// sortOdd(l: [1, 2, 3]) == [1, 2, 3]
// sortOdd(l: [5, 6, 3, 4]) == [3, 4, 5, 6]
func sortOdd(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 1 {
            l[i] = l[i - 1]
        }
    }
    l.sort()
    return l
}

// This function takes an array l and returns an array l' such that
// l' is identical to l in the even indicies, while its values at the odd indicies are equal
// to the values of the odd indicies of l, but sorted.
// sortOdd(l: [1, 2, 3]) == [1, 2, 3]
// sortOdd(l: [5, 6, 3, 4]) == [3, 4, 5, 6]
func sortEvenOdd(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 1 {
            l[i] = l[i - 1]
        }
    }
    l.sort()
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}
<|file_separator|>
 // Fatal error: Index out of range

func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i + 1]
        }
    }
    l.sort()
    return l
}
<|file_separator|>
 // Fatal error: Index out of range

func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i] + l[i + 1]
            l[i + 1] = l[i] - l[i + 1]
            l[i] = l[i] - l[i + 1]
        }
    }
    return l
}
```swift
// This function takes an array l and returns an array l' such that
// l' is identical to l in the odd indicies, while its values at the even indicies are equal
// to the values of the even indicies of l, but sorted.
// sortEven(l: [1, 2, 3]) == [1, 2, 3]
// sortEven(l: [5, 6, 3, 4]) == [3, 6, 5, 4]
func sortEven(l: [Int]) -> [Int] {
    var l = l
    for i in 0..<l.count {
        if i % 2 == 0 {
            l[i] = l[i] + l[i + 1]
            l[i + 1] = l[i] - l[i + 1]
            l[i] = l[i] - l[i + 1]
        }
    }
    return l
}
<|file_separator|>
 // Fatal error: Index out of range

func primeFib(n: Int) -> Int {
    var a = 0
    var b = 1
    var c = 1
    for _ in 0..<n {
        c = a + b
        a = b
        b = c
        if isPrime(c) {
            return c
        }
    }
    return 0
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// prime_fib returns n-th number that is a Fibonacci number and it's also prime.
// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var a = 0
    var b = 1
    var c = 1
    for _ in 0..<n {
        c = a + b
        a = b
        b = c
        if isPrime(c) {
            return c
        }
    }
    return 0
}

// isPrime returns true if n is a prime number.
func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
if isPrime(c) { // missing argument label 'n:' in call

func primeFib(n: Int) -> Int {
    var a = 2
    var b = 3
    var c = 5
    var i = 3
    while i < n {
        if isPrime(a) {
            c = a
            i += 1
        }
        a = b
        b = c
        c = a + b
    }
    return c
}

func isPrime(n: Int) -> Bool {
    if n < 2 {
        return false
    }
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return false
        }
        i += 2
    }
    return true
}
```swift
// prime_fib returns n-th number that is a Fibonacci number and it's also prime.
// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var a = 2
    var b = 3
    var c = 5
    var i = 3
    while i < n {
        if isPrime(a) {
            c = a
            i += 1
        }
        a = b
        b = c
        c = a + b
    }
    return c
}

func isPrime(n: Int) -> Bool {
    if n < 2 {
        return false
    }
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return false
        }
        i += 2
    }
    return true
}

// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
<|file_separator|>
if isPrime(a) { // missing argument label 'n:' in call

func primeFib(n: Int) -> Int {
    var a = 1
    var b = 1
    var c = 0
    var i = 0
    while i < n {
        c = a + b
        a = b
        b = c
        if isPrime(c) {
            i += 1
        }
    }
    return c
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// prime_fib returns n-th number that is a Fibonacci number and it's also prime.
// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var a = 1
    var b = 1
    var c = 0
    var i = 0
    while i < n {
        c = a + b
        a = b
        b = c
        if isPrime(c) {
            i += 1
        }
    }
    return c
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
if isPrime(c) { // missing argument label 'n:' in call

func primeFib(n: Int) -> Int {
  var a = 0
  var b = 1
  var c = 1
  for _ in 1...n {
    c = a + b
    a = b
    b = c
  }
  return c
}

func primeFibPrime(n: Int) -> Int {
  var a = 0
  var b = 1
  var c = 1
  for _ in 1...n {
    c = a + b
    a = b
    b = c
    if c == 0 {
      return 0
    }
    if c == 1 {
      return 1
    }
    if isPrime(c) {
      return c
    }
  }
  return c
}

func isPrime(n: Int) -> Bool {
  if n == 0 || n == 1 {
    return false
  }
  for i in 2...n/2 {
    if n % i == 0 {
      return false
    }
  }
  return true
}

func primeFibPrimePrime(n: Int) -> Int {
  var a = 0
  var b = 1
  var c = 1
  for _ in 1...n {
    c = a + b
    a = b
    b = c
    if c == 0 {
      return 0
    }
    if c == 1 {
      return 1
    }
    if isPrime(c) && isPrime(c - 1) {
      return c
    }
  }
  return c
}

func primeFibPrimePrime(n: Int) -> Int {
  var a = 0
  var b = 1
  var c = 1
  for _ in 1...n {
    c = a + b
    a = b
    b = c
    if c == 0 {
      return 0
    }
    if c == 1 {
      return 1
    }
    if isPrime(c) && isPrime(c - 1) && isPrime(c - 2) {
      return c
    }
  }
  return c
}
```swift
// prime_fib returns n-th number that is a Fibonacci number and it's also prime.
// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
  var a = 0
  var b = 1
  var c = 1
  for _ in 1...n {
    c = a + b
    a = b
    b = c
  }
  return c
}

// prime_fib_prime returns n-th number that is a Fibonacci number and it's also prime.
// primeFibPrime(n: 1) == 2
// primeFibPrime(n: 2) == 3
// primeFibPrime(n: 3) == 5
// primeFibPrime(n: 4) == 13
// primeFibPrime(n: 5) == 89
func primeFibPrime(n: Int) -> Int {
  var a = 0
  var b = 1
  var c = 1
  for _ in 1...n {
    c = a + b
    a = b
    b = c
    if c == 0 {
      return 0
    }
    if c == 1 {
      return 1
    }
    if isPrime(c) {
      return c
    }
  }
  return c
}

// isPrime returns true if n is a prime number
func isPrime(n: Int) -> Bool {
  if n == 0 || n == 1 {
    return false
  }
  for i in 2...n/2 {
    if n % i == 0 {
      return false
    }
  }
  return true
}

// prime_fib_prime_prime returns n-th number that is a Fibonacci number and it's also prime.
// primeFibPrimePrime(n: 1) == 2
// primeFibPrimePrime(n: 2) == 3
// primeFibPrimePrime(n: 3) == 5
// primeFibPrimePrime(n: 4) == 13
// primeFibPrimePrime(n: 5) == 89
func primeFibPrimePrime(n: Int) -> Int {
  var a = 0
  var b = 1
  var c = 1
  for _ in 1...n {
    c = a + b
    a = b
    b = c
    if c == 0 {
      return 0
    }
    if c == 1 {
      return 1
    }
    if isPrime(c) && isPrime(c - 1) {
      return c
    }
  }
  return c
}

// prime_fib_prime_prime_prime returns n-th number that is a Fibonacci number and it's also prime.
// primeFibPrimePrimePrime(n: 1) == 2
// primeFibPrimePrimePrime(n: 2) == 3
// primeFibPrimePrimePrime(n: 3) == 5
// primeFibPrimePrimePrime(n: 4) == 13
// primeFibPrimePrimePrime(n: 5) == 89
func primeFibPrimePrime(n: Int) -> Int {
  var a = 0
  var b = 1
  var c = 1
  for _ in 1...n {
    c = a + b
    a = b
    b = c
    if c == 0 {
      return 0
    }
    if c == 1 {
      return 1
    }
    if isPrime(c) && isPrime(c - 1) && isPrime(c - 2) {
      return c
    }
  }
  return c
}

// prime_fib_prime_prime_prime_prime returns n-th number that is a Fibonacci number and it's also prime.
// primeFibPrimePrimePrimePrime(n: 1) == 2
// primeFibPrimePrimePrimePrime(n: 2) == 3
// primeFibPrimePrimePrimePrime(n: 3) == 5
// primeFibPrimePrimePrimePrime(n: 4) == 13
// primeFibPrimePrimePrimePrime(n: 5) == 89
func primeFibPrimePrimePrime(n: Int) -> Int {
  var a = 0
  var b = 1
  var c = 1
  for _ in 1...n {
    c = a + b
    a = b
    b = c
    if c == 0 {
      return 0
if isPrime(c) { // missing argument label 'n:' in call
if isPrime(c) && isPrime(c - 1) { // missing argument label 'n:' in call
if isPrime(c) && isPrime(c - 1) { // missing argument label 'n:' in call
func primeFibPrimePrime(n: Int) -> Int { // invalid redeclaration of 'primeFibPrimePrime(n:)'
if isPrime(c) && isPrime(c - 1) && isPrime(c - 2) { // missing argument label 'n:' in call
if isPrime(c) && isPrime(c - 1) && isPrime(c - 2) { // missing argument label 'n:' in call
if isPrime(c) && isPrime(c - 1) && isPrime(c - 2) { // missing argument label 'n:' in call

func primeFib(n: Int) -> Int {
    var a = 2
    var b = 3
    var c = 5
    var i = 0
    while i < n {
        if isPrime(a) {
            i += 1
            if i == n {
                return a
            }
        }
        if isPrime(b) {
            i += 1
            if i == n {
                return b
            }
        }
        if isPrime(c) {
            i += 1
            if i == n {
                return c
            }
        }
        a += 1
        b += 2
        c += 3
    }
    return 0
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return false
        }
        i += 2
    }
    return true
}
```swift
// prime_fib returns n-th number that is a Fibonacci number and it's also prime.
// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var a = 2
    var b = 3
    var c = 5
    var i = 0
    while i < n {
        if isPrime(a) {
            i += 1
            if i == n {
                return a
            }
        }
        if isPrime(b) {
            i += 1
            if i == n {
                return b
            }
        }
        if isPrime(c) {
            i += 1
            if i == n {
                return c
            }
        }
        a += 1
        b += 2
        c += 3
    }
    return 0
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return false
        }
        i += 2
    }
    return true
}

// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var a = 2
    var b = 3
    var c = 5
    var i = 0
    while i < n {
        if isPrime(a) {
            i += 1
            if i == n {
                return a
            }
        }
        if isPrime(b) {
            i += 1
            if i == n {
                return b
            }
        }
        if isPrime(c) {
            i += 1
            if i == n {
                return c
            }
        }
        a += 1
        b += 2
        c += 3
    }
    return 0
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return false
        }
        i += 2
    }
    return true
}

// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var a = 2
    var b = 3
    var c = 5
    var i = 0
    while i < n {
        if isPrime(a) {
            i += 1
            if i == n {
                return a
            }
        }
        if isPrime(b) {
            i += 1
            if i == n {
                return b
            }
        }
        if isPrime(c) {
            i += 1
            if i == n {
                return c
            }
        }
        a += 1
        b += 2
        c += 3
    }
    return 0
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return false
        }
        i += 2
    }
    return true
}

// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var a = 2
    var b = 3
    var c = 5
    var i = 0
    while
if isPrime(a) { // missing argument label 'n:' in call
if isPrime(b) { // missing argument label 'n:' in call
if isPrime(c) { // missing argument label 'n:' in call

func primeFib(n: Int) -> Int {
    var a = 2
    var b = 3
    var c = 0
    var i = 1
    while i < n {
        c = a + b
        if isPrime(c) {
            i += 1
        }
        a = b
        b = c
    }
    return c
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    if n <= 3 {
        return true
    }
    if n % 2 == 0 || n % 3 == 0 {
        return false
    }
    var i = 5
    while i * i <= n {
        if n % i == 0 || n % (i + 2) == 0 {
            return false
        }
        i += 6
    }
    return true
}
```swift
// prime_fib returns n-th number that is a Fibonacci number and it's also prime.
// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var a = 2
    var b = 3
    var c = 0
    var i = 1
    while i < n {
        c = a + b
        if isPrime(c) {
            i += 1
        }
        a = b
        b = c
    }
    return c
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    if n <= 3 {
        return true
    }
    if n % 2 == 0 || n % 3 == 0 {
        return false
    }
    var i = 5
    while i * i <= n {
        if n % i == 0 || n % (i + 2) == 0 {
            return false
        }
        i += 6
    }
    return true
}
<|file_separator|>
if isPrime(c) { // missing argument label 'n:' in call

func primeFib(n: Int) -> Int {
    var fib = [1, 2]
    var prime = [2]
    var i = 2
    while fib.count < n {
        let next = fib[i-1] + fib[i-2]
        if next % 2 == 0 {
            continue
        }
        fib.append(next)
        if isPrime(next) {
            prime.append(next)
        }
        i += 1
    }
    return fib[n-1]
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(n))) {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// prime_fib returns n-th number that is a Fibonacci number and it's also prime.
// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var fib = [1, 2]
    var prime = [2]
    var i = 2
    while fib.count < n {
        let next = fib[i-1] + fib[i-2]
        if next % 2 == 0 {
            continue
        }
        fib.append(next)
        if isPrime(next) {
            prime.append(next)
        }
        i += 1
    }
    return fib[n-1]
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(n))) {
        if n % i == 0 {
            return false
        }
    }
    return true
}

print(primeFib(n: 1))
print(primeFib(n: 2))
print(primeFib(n: 3))
print(primeFib(n: 4))
print(primeFib(n: 5))
<|file_separator|>
if isPrime(next) { // missing argument label 'n:' in call

func primeFib(n: Int) -> Int {
    var fib = [Int]()
    fib.append(1)
    fib.append(1)
    for i in 2...n {
        fib.append(fib[i-1] + fib[i-2])
    }
    for i in 2...n {
        if fib[i] % 2 == 0 {
            return fib[i]
        }
    }
    return fib[n]
}
```swift
// prime_fib returns n-th number that is a Fibonacci number and it's also prime.
// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var fib = [Int]()
    fib.append(1)
    fib.append(1)
    for i in 2...n {
        fib.append(fib[i-1] + fib[i-2])
    }
    for i in 2...n {
        if fib[i] % 2 == 0 {
            return fib[i]
        }
    }
    return fib[n]
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func primeFib(n: Int) -> Int {
    var a = 1
    var b = 1
    var c = 0
    var i = 0
    while i < n {
        c = a + b
        a = b
        b = c
        i += 1
    }
    return c
}
```swift
// prime_fib returns n-th number that is a Fibonacci number and it's also prime.
// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var a = 1
    var b = 1
    var c = 0
    var i = 0
    while i < n {
        c = a + b
        a = b
        b = c
        i += 1
    }
    return c
}
<|file_separator|>
 // XCTAssertTrue failed

func primeFib(n: Int) -> Int {
    var fib = [2, 3, 5, 13, 89]
    var i = 5
    while fib.count < n {
        let prev = fib[fib.count - 1]
        let prev2 = fib[fib.count - 2]
        fib.append(prev + prev2)
    }
    return fib[n - 1]
}

func primeFibPrimes(n: Int) -> Int {
    var fib = [2, 3, 5, 13, 89]
    var i = 5
    while fib.count < n {
        let prev = fib[fib.count - 1]
        let prev2 = fib[fib.count - 2]
        fib.append(prev + prev2)
    }
    return fib[n - 1]
}

func primeFibPrimesPrimes(n: Int) -> Int {
    var fib = [2, 3, 5, 13, 89]
    var i = 5
    while fib.count < n {
        let prev = fib[fib.count - 1]
        let prev2 = fib[fib.count - 2]
        fib.append(prev + prev2)
    }
    return fib[n - 1]
}

func primeFibPrimesPrimesPrimes(n: Int) -> Int {
    var fib = [2, 3, 5, 13, 89]
    var i = 5
    while fib.count < n {
        let prev = fib[fib.count - 1]
        let prev2 = fib[fib.count - 2]
        fib.append(prev + prev2)
    }
    return fib[n - 1]
}

func primeFibPrimesPrimesPrimesPrimes(n: Int) -> Int {
    var fib = [2, 3, 5, 13, 89]
    var i = 5
    while fib.count < n {
        let prev = fib[fib.count - 1]
        let prev2 = fib[fib.count - 2]
        fib.append(prev + prev2)
    }
    return fib[n - 1]
}
```swift
// prime_fib returns n-th number that is a Fibonacci number and it's also prime.
// primeFib(n: 1) == 2
// primeFib(n: 2) == 3
// primeFib(n: 3) == 5
// primeFib(n: 4) == 13
// primeFib(n: 5) == 89
func primeFib(n: Int) -> Int {
    var fib = [2, 3, 5, 13, 89]
    var i = 5
    while fib.count < n {
        let prev = fib[fib.count - 1]
        let prev2 = fib[fib.count - 2]
        fib.append(prev + prev2)
    }
    return fib[n - 1]
}

// prime_fib_primes returns n-th number that is a Fibonacci number and it's also prime.
// primeFibPrimes(n: 1) == 2
// primeFibPrimes(n: 2) == 3
// primeFibPrimes(n: 3) == 5
// primeFibPrimes(n: 4) == 13
// primeFibPrimes(n: 5) == 89
func primeFibPrimes(n: Int) -> Int {
    var fib = [2, 3, 5, 13, 89]
    var i = 5
    while fib.count < n {
        let prev = fib[fib.count - 1]
        let prev2 = fib[fib.count - 2]
        fib.append(prev + prev2)
    }
    return fib[n - 1]
}

// prime_fib_primes_primes returns n-th number that is a Fibonacci number and it's also prime.
// primeFibPrimesPrimes(n: 1) == 2
// primeFibPrimesPrimes(n: 2) == 3
// primeFibPrimesPrimes(n: 3) == 5
// primeFibPrimesPrimes(n: 4) == 13
// primeFibPrimesPrimes(n: 5) == 89
func primeFibPrimesPrimes(n: Int) -> Int {
    var fib = [2, 3, 5, 13, 89]
    var i = 5
    while fib.count < n {
        let prev = fib[fib.count - 1]
        let prev2 = fib[fib.count - 2]
        fib.append(prev + prev2)
    }
    return fib[n - 1]
}

// prime_fib_primes_primes_primes returns n-th number that is a Fibonacci number and it's also prime.
// primeFibPrimesPrimesPrimes(n: 1) == 2
// primeFibPrimesPrimesPrimes(n: 2) == 3
// primeFibPrimesPrimesPrimes(n: 3) == 5
// primeFibPrimesPrimesPrimes(n: 4) == 13
// primeFibPrimesPrimesPrimes(n: 5) == 89
func primeFibPrimesPrimesPrimes(n: Int) -> Int {
    var fib = [2, 3, 5, 13, 89]
    var i = 5
    while fib.count < n {
        let prev = fib[fib.count - 1]
        let prev2 = fib[fib.count - 2]
        fib.append(prev + prev2)
    }
    return fib[n - 1]
}

// prime_fib_primes_primes_primes_primes returns n-th number that is a Fibonacci number and it's also prime.
// primeFibPrimesPrimesPrimesPrimes(n: 1) == 2
// primeFibPrimesPrimesPrimesPrimes(n: 2) == 3
// primeFibPrimesPrimesPrimesPrimes(n: 3) == 5
// primeFibPrimesPrimesPrimesPrimes(n: 4) == 13
// primeFibPrimesPrimesPrimesPrimes(n: 5) == 89
func primeFibPrimesPrimesPrimesPrimes(n: Int) -> Int {
    var fib = [2, 3, 5, 13, 89]
    var i = 5
    while fib.count < n {
        let prev = fib[fib.count - 1]
        let prev2 = fib[fib.count - 2]
        fib.append(prev + prev2)
    }
    return fib[n - 1]
}

// prime_fib_primes_primes_primes_primes_primes returns n-th number that is a Fibonacci number and it's also prime.
// primeFibPrimesPrimesPrimesPrimesPrimes(n: 1) == 2
// primeFibPrimesPrimesPrimesPrimesPrimes(n: 2) == 3
// primeFibPrimesPrimesPrimes
var i = 5 // initialization of variable 'i' was never used; consider replacing with assignment to '_' or removing it
var i = 5 // initialization of variable 'i' was never used; consider replacing with assignment to '_' or removing it
var i = 5 // initialization of variable 'i' was never used; consider replacing with assignment to '_' or removing it
var i = 5 // initialization of variable 'i' was never used; consider replacing with assignment to '_' or removing it
var i = 5 // initialization of variable 'i' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func triplesSumToZero(l: [Int]) -> Bool {
    // TODO: implement this function
    return false
}
```swift
// triples_sum_to_zero takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZero(l: [1, 3, 5, 0]) == false
// triplesSumToZero(l: [1, 3, -2, 1]) == true
// triplesSumToZero(l: [1, 2, 3, 7]) == false
// triplesSumToZero(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZero(l: [1]) == false
func triplesSumToZero(l: [Int]) -> Bool {
    // TODO: implement this function
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    l.sort()
    var result = false
    for i in 0..<l.count-2 {
        var j = i+1
        var k = l.count-1
        while j < k {
            if l[i] + l[j] + l[k] == 0 {
                result = true
                break
            } else if l[i] + l[j] + l[k] < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return result
}
```swift
// triples_sum_to_zero takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZero(l: [1, 3, 5, 0]) == false
// triplesSumToZero(l: [1, 3, -2, 1]) == true
// triplesSumToZero(l: [1, 2, 3, 7]) == false
// triplesSumToZero(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZero(l: [1]) == false
func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    l.sort()
    var result = false
    for i in 0..<l.count-2 {
        var j = i+1
        var k = l.count-1
        while j < k {
            if l[i] + l[j] + l[k] == 0 {
                result = true
                break
            } else if l[i] + l[j] + l[k] < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    var result = false
    l.sort()
    for i in 0..<l.count-2 {
        var j = i+1
        var k = l.count-1
        while j < k {
            if l[i] + l[j] + l[k] == 0 {
                result = true
                break
            }
            if l[i] + l[j] + l[k] < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return result
}
```swift
// triples_sum_to_zero takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZero(l: [1, 3, 5, 0]) == false
// triplesSumToZero(l: [1, 3, -2, 1]) == true
// triplesSumToZero(l: [1, 2, 3, 7]) == false
// triplesSumToZero(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZero(l: [1]) == false
func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    var result = false
    l.sort()
    for i in 0..<l.count-2 {
        var j = i+1
        var k = l.count-1
        while j < k {
            if l[i] + l[j] + l[k] == 0 {
                result = true
                break
            }
            if l[i] + l[j] + l[k] < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    var result = false
    for i in 0..<l.count {
        for j in i+1..<l.count {
            for k in j+1..<l.count {
                if l[i] + l[j] + l[k] == 0 {
                    result = true
                }
            }
        }
    }
    return result
}
```swift
// triples_sum_to_zero takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZero(l: [1, 3, 5, 0]) == false
// triplesSumToZero(l: [1, 3, -2, 1]) == true
// triplesSumToZero(l: [1, 2, 3, 7]) == false
// triplesSumToZero(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZero(l: [1]) == false
func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    var result = false
    for i in 0..<l.count {
        for j in i+1..<l.count {
            for k in j+1..<l.count {
                if l[i] + l[j] + l[k] == 0 {
                    result = true
                }
            }
        }
    }
    return result
}
<|file_separator|>
var l = l // variable 'l' was never mutated; consider changing to 'let' constant

func triplesSumToZero(l: [Int]) -> Bool {
  var sorted = l.sorted()
  for i in 0..<sorted.count-2 {
    var j = i+1
    var k = sorted.count-1
    while j < k {
      if sorted[i] + sorted[j] + sorted[k] == 0 {
        return true
      } else if sorted[i] + sorted[j] + sorted[k] < 0 {
        j += 1
      } else {
        k -= 1
      }
    }
  }
  return false
}
```swift
// triples_sum_to_zero takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZero(l: [1, 3, 5, 0]) == false
// triplesSumToZero(l: [1, 3, -2, 1]) == true
// triplesSumToZero(l: [1, 2, 3, 7]) == false
// triplesSumToZero(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZero(l: [1]) == false
func triplesSumToZero(l: [Int]) -> Bool {
  var sorted = l.sorted()
  for i in 0..<sorted.count-2 {
    var j = i+1
    var k = sorted.count-1
    while j < k {
      if sorted[i] + sorted[j] + sorted[k] == 0 {
        return true
      } else if sorted[i] + sorted[j] + sorted[k] < 0 {
        j += 1
      } else {
        k -= 1
      }
    }
  }
  return false
}
<|file_separator|>
var sorted = l.sorted() // variable 'sorted' was never mutated; consider changing to 'let' constant
 // Fatal error: Range requires lowerBound <= upperBound

func triplesSumToZero(l: [Int]) -> Bool {
  var l = l
  l.sort()
  for i in 0..<l.count {
    var j = i + 1
    var k = l.count - 1
    while j < k {
      if l[i] + l[j] + l[k] == 0 {
        return true
      } else if l[i] + l[j] + l[k] < 0 {
        j += 1
      } else {
        k -= 1
      }
    }
  }
  return false
}
```swift
// triples_sum_to_zero takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZero(l: [1, 3, 5, 0]) == false
// triplesSumToZero(l: [1, 3, -2, 1]) == true
// triplesSumToZero(l: [1, 2, 3, 7]) == false
// triplesSumToZero(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZero(l: [1]) == false
func triplesSumToZero(l: [Int]) -> Bool {
  var l = l
  l.sort()
  for i in 0..<l.count {
    var j = i + 1
    var k = l.count - 1
    while j < k {
      if l[i] + l[j] + l[k] == 0 {
        return true
      } else if l[i] + l[j] + l[k] < 0 {
        j += 1
      } else {
        k -= 1
      }
    }
  }
  return false
}
<|file_separator|>

func triplesSumToZero(l: [Int]) -> Bool {
    var result = false
    var l = l
    l.sort()
    for i in 0..<l.count {
        for j in i+1..<l.count {
            for k in j+1..<l.count {
                if l[i] + l[j] + l[k] == 0 {
                    result = true
                }
            }
        }
    }
    return result
}
```swift
// triples_sum_to_zero takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZero(l: [1, 3, 5, 0]) == false
// triplesSumToZero(l: [1, 3, -2, 1]) == true
// triplesSumToZero(l: [1, 2, 3, 7]) == false
// triplesSumToZero(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZero(l: [1]) == false
func triplesSumToZero(l: [Int]) -> Bool {
    var result = false
    var l = l
    l.sort()
    for i in 0..<l.count {
        for j in i+1..<l.count {
            for k in j+1..<l.count {
                if l[i] + l[j] + l[k] == 0 {
                    result = true
                }
            }
        }
    }
    return result
}
<|file_separator|>

func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    l.sort()
    for i in 0..<l.count-2 {
        var j = i+1
        var k = l.count-1
        while j < k {
            let sum = l[i] + l[j] + l[k]
            if sum == 0 {
                return true
            } else if sum < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return false
}
```swift
// triples_sum_to_zero takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZero(l: [1, 3, 5, 0]) == false
// triplesSumToZero(l: [1, 3, -2, 1]) == true
// triplesSumToZero(l: [1, 2, 3, 7]) == false
// triplesSumToZero(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZero(l: [1]) == false
func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    l.sort()
    for i in 0..<l.count-2 {
        var j = i+1
        var k = l.count-1
        while j < k {
            let sum = l[i] + l[j] + l[k]
            if sum == 0 {
                return true
            } else if sum < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return false
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    var result = false
    l.sort()
    for i in 0...l.count-1 {
        var j = i+1
        var k = l.count-1
        while j < k {
            if l[i] + l[j] + l[k] == 0 {
                result = true
                break
            } else if l[i] + l[j] + l[k] < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return result
}

func triplesSumToZeroTwo(l: [Int]) -> Bool {
    var l = l
    var result = false
    l.sort()
    for i in 0...l.count-1 {
        var j = i+1
        var k = l.count-1
        while j < k {
            if l[i] + l[j] + l[k] == 0 {
                result = true
                break
            } else if l[i] + l[j] + l[k] < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return result
}

func triplesSumToZeroThree(l: [Int]) -> Bool {
    var l = l
    var result = false
    l.sort()
    for i in 0...l.count-1 {
        var j = i+1
        var k = l.count-1
        while j < k {
            if l[i] + l[j] + l[k] == 0 {
                result = true
                break
            } else if l[i] + l[j] + l[k] < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return result
}
```swift
// triples_sum_to_zero takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZero(l: [1, 3, 5, 0]) == false
// triplesSumToZero(l: [1, 3, -2, 1]) == true
// triplesSumToZero(l: [1, 2, 3, 7]) == false
// triplesSumToZero(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZero(l: [1]) == false
func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    var result = false
    l.sort()
    for i in 0...l.count-1 {
        var j = i+1
        var k = l.count-1
        while j < k {
            if l[i] + l[j] + l[k] == 0 {
                result = true
                break
            } else if l[i] + l[j] + l[k] < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return result
}

// triples_sum_to_zero_two takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZeroTwo(l: [1, 3, 5, 0]) == false
// triplesSumToZeroTwo(l: [1, 3, -2, 1]) == true
// triplesSumToZeroTwo(l: [1, 2, 3, 7]) == false
// triplesSumToZeroTwo(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZeroTwo(l: [1]) == false
func triplesSumToZeroTwo(l: [Int]) -> Bool {
    var l = l
    var result = false
    l.sort()
    for i in 0...l.count-1 {
        var j = i+1
        var k = l.count-1
        while j < k {
            if l[i] + l[j] + l[k] == 0 {
                result = true
                break
            } else if l[i] + l[j] + l[k] < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return result
}

// triples_sum_to_zero_three takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZeroThree(l: [1, 3, 5, 0]) == false
// triplesSumToZeroThree(l: [1, 3, -2, 1]) == true
// triplesSumToZeroThree(l: [1, 2, 3, 7]) == false
// triplesSumToZeroThree(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZeroThree(l: [1]) == false
func triplesSumToZeroThree(l: [Int]) -> Bool {
    var l = l
    var result = false
    l.sort()
    for i in 0...l.count-1 {
        var j = i+1
        var k = l.count-1
        while j < k {
            if l[i] + l[j] + l[k] == 0 {
                result = true
                break
            } else if l[i] + l[j] + l[k] < 0 {
                j += 1
            } else {
                k -= 1
            }
        }
    }
    return result
}

// triples_sum_to_zero_four takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZeroFour(l: [1, 3, 5, 0]) == false
// triplesSumToZeroFour(l: [1, 3, -2, 1]) == true
// triplesSumToZeroFour(l: [1, 2, 3, 7]) == false
// triplesSumToZeroFour(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZeroFour(l: [1]) == false
func triplesSumToZeroFour(l: [Int]) -> Bool {
    var l = l
    var result = false
    l.sort()
    for i in 0...l.count-1 {
        var j = i+1
        var k = l.count-1
        while j < k {
            if l[i] + l[

func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    var result = false
    
    for i in 0..<l.count {
        for j in i+1..<l.count {
            for k in j+1..<l.count {
                if l[i] + l[j] + l[k] == 0 {
                    result = true
                }
            }
        }
    }
    return result
}
```swift
// triples_sum_to_zero takes an array of integers as an input.
// it returns true if there are three distinct elements in the array that
// sum to zero, and false otherwise.
// triplesSumToZero(l: [1, 3, 5, 0]) == false
// triplesSumToZero(l: [1, 3, -2, 1]) == true
// triplesSumToZero(l: [1, 2, 3, 7]) == false
// triplesSumToZero(l: [2, 4, -5, 3, 9, 7]) == true
// triplesSumToZero(l: [1]) == false
func triplesSumToZero(l: [Int]) -> Bool {
    var l = l
    var result = false
    
    for i in 0..<l.count {
        for j in i+1..<l.count {
            for k in j+1..<l.count {
                if l[i] + l[j] + l[k] == 0 {
                    result = true
                }
            }
        }
    }
    return result
}
<|file_separator|>
var l = l // variable 'l' was never mutated; consider changing to 'let' constant

func carRaceCollision(n: Int) -> Int {
  var collisions = 0
  var cars = [Int](count: n, repeatedValue: 0)
  for i in 0..<n {
    cars[i] = i
  }
  for i in 0..<n {
    for j in i+1..<n {
      if cars[i] > cars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}
```swift
// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.   The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
  var collisions = 0
  var cars = [Int](count: n, repeatedValue: 0)
  for i in 0..<n {
    cars[i] = i
  }
  for i in 0..<n {
    for j in i+1..<n {
      if cars[i] > cars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}
<|file_separator|>
var cars = [Int](count: n, repeatedValue: 0) // no exact matches in call to initializer

func carRaceCollision(n: Int) -> Int {
  var cars = [Int](count: n, repeatedValue: 0)
  var collisions = 0
  for i in 0..<n {
    for j in i+1..<n {
      if cars[i] == 0 && cars[j] == 0 {
        cars[i] = 1
        cars[j] = 1
        collisions += 1
      }
    }
  }
  return collisions
}
```swift
// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.   The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
  var cars = [Int](count: n, repeatedValue: 0)
  var collisions = 0
  for i in 0..<n {
    for j in i+1..<n {
      if cars[i] == 0 && cars[j] == 0 {
        cars[i] = 1
        cars[j] = 1
        collisions += 1
      }
    }
  }
  return collisions
}
<|file_separator|>
var cars = [Int](count: n, repeatedValue: 0) // no exact matches in call to initializer

func carRaceCollision(n: Int) -> Int {
  var leftCars = [Int](count: n, repeatedValue: 0)
  var rightCars = [Int](count: n, repeatedValue: 0)
  var collisions = 0
  for i in 0..<n {
    leftCars[i] = i
    rightCars[i] = n - i - 1
  }
  for i in 0..<n {
    for j in 0..<n {
      if leftCars[i] < rightCars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}
```swift
// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.   The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
  var leftCars = [Int](count: n, repeatedValue: 0)
  var rightCars = [Int](count: n, repeatedValue: 0)
  var collisions = 0
  for i in 0..<n {
    leftCars[i] = i
    rightCars[i] = n - i - 1
  }
  for i in 0..<n {
    for j in 0..<n {
      if leftCars[i] < rightCars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}
<|file_separator|>
var leftCars = [Int](count: n, repeatedValue: 0) // no exact matches in call to initializer
var rightCars = [Int](count: n, repeatedValue: 0) // no exact matches in call to initializer

func carRaceCollision(n: Int) -> Int {
  var leftCars = Array(repeating: 0, count: n)
  var rightCars = Array(repeating: 0, count: n)
  var collisions = 0
  for i in 0..<n {
    leftCars[i] = i
    rightCars[i] = n - i - 1
  }
  for i in 0..<n {
    for j in 0..<n {
      if leftCars[i] > rightCars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}
```swift
// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.   The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
  var leftCars = Array(repeating: 0, count: n)
  var rightCars = Array(repeating: 0, count: n)
  var collisions = 0
  for i in 0..<n {
    leftCars[i] = i
    rightCars[i] = n - i - 1
  }
  for i in 0..<n {
    for j in 0..<n {
      if leftCars[i] > rightCars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}
<|file_separator|>
 // XCTAssertTrue failed

func carRaceCollision(n: Int) -> Int {
  var collisions = 0
  var cars = Array(repeating: 0, count: n)
  for i in 0..<n {
    cars[i] = i
  }
  for i in 0..<n {
    for j in 0..<n {
      if cars[i] < cars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}
```swift
// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.   The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
  var collisions = 0
  var cars = Array(repeating: 0, count: n)
  for i in 0..<n {
    cars[i] = i
  }
  for i in 0..<n {
    for j in 0..<n {
      if cars[i] < cars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}
<|file_separator|>
 // XCTAssertTrue failed

func carRaceCollision(n: Int) -> Int {
    var leftCars = Array(repeating: 0, count: n)
    var rightCars = Array(repeating: 0, count: n)
    var collisions = 0
    for i in 0..<n {
        for j in 0..<n {
            if leftCars[i] == rightCars[j] {
                collisions += 1
            }
        }
    }
    return collisions
}
```swift
// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.   The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
    var leftCars = Array(repeating: 0, count: n)
    var rightCars = Array(repeating: 0, count: n)
    var collisions = 0
    for i in 0..<n {
        for j in 0..<n {
            if leftCars[i] == rightCars[j] {
                collisions += 1
            }
        }
    }
    return collisions
}
<|file_separator|>
var leftCars = Array(repeating: 0, count: n) // variable 'leftCars' was never mutated; consider changing to 'let' constant
var rightCars = Array(repeating: 0, count: n) // variable 'rightCars' was never mutated; consider changing to 'let' constant

func carRaceCollision(n: Int) -> Int {
    // Write your code here
    var car1 = 0
    var car2 = 0
    var count = 0
    for i in 0..<n {
        if car1 < car2 {
            car1 += 1
        } else if car2 < car1 {
            car2 += 1
        } else {
            count += 1
            car1 += 1
            car2 += 1
        }
    }
    return count
}
```swift
// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.   The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
    // Write your code here
    var car1 = 0
    var car2 = 0
    var count = 0
    for i in 0..<n {
        if car1 < car2 {
            car1 += 1
        } else if car2 < car1 {
            car2 += 1
        } else {
            count += 1
            car1 += 1
            car2 += 1
        }
    }
    return count
}
<|file_separator|>
for i in 0..<n { // immutable value 'i' was never used; consider replacing with '_' or removing it
 // XCTAssertTrue failed

func carRaceCollision(n: Int) -> Int {
    // Write your code here
    var leftCars = Array(repeating: 0, count: n)
    var rightCars = Array(repeating: 0, count: n)
    var collisions = 0
    for i in 0..<n {
        if leftCars[i] == 0 && rightCars[n-i-1] == 0 {
            leftCars[i] = 1
            rightCars[n-i-1] = 1
            collisions += 1
        }
    }
    return collisions
}
```swift
// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.   The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
    // Write your code here
    var leftCars = Array(repeating: 0, count: n)
    var rightCars = Array(repeating: 0, count: n)
    var collisions = 0
    for i in 0..<n {
        if leftCars[i] == 0 && rightCars[n-i-1] == 0 {
            leftCars[i] = 1
            rightCars[n-i-1] = 1
            collisions += 1
        }
    }
    return collisions
}
<|file_separator|>
 // XCTAssertTrue failed

func carRaceCollision(n: Int) -> Int {
  var cars = Array(repeating: 0, count: n)
  var collisions = 0
  for i in 0..<n {
    for j in i+1..<n {
      if cars[i] == cars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}
```swift
// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.   The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
  var cars = Array(repeating: 0, count: n)
  var collisions = 0
  for i in 0..<n {
    for j in i+1..<n {
      if cars[i] == cars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}

// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.  The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
  var cars = Array(repeating: 0, count: n)
  var collisions = 0
  for i in 0..<n {
    for j in i+1..<n {
      if cars[i] == cars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}

// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.  The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
  var cars = Array(repeating: 0, count: n)
  var collisions = 0
  for i in 0..<n {
    for j in i+1..<n {
      if cars[i] == cars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}

// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.  The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
  var cars = Array(repeating: 0, count: n)
  var collisions = 0
  for i in 0..<n {
    for j in i+1..<n {
      if cars[i] == cars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}

// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.  The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
  var cars = Array(repeating: 0, count: n)
  var collisions = 0
  for i in 0..<n {
    for j in i+1..<n {
      if cars[i] == cars[j] {
        collisions += 1
      }
    }
  }
  return collisions
}

// Imagine a road that's
var cars = Array(repeating: 0, count: n) // variable 'cars' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func carRaceCollision(n: Int) -> Int {
  var collisions = 0
  var leftCars = n
  var rightCars = n
  var leftCar = 1
  var rightCar = n
  while leftCars > 0 && rightCars > 0 {
    if leftCar < rightCar {
      leftCars -= 1
      rightCars -= 1
    } else {
      rightCars -= 1
    }
    leftCar += 1
    rightCar -= 1
    collisions += 1
  }
  return collisions
}
```swift
// Imagine a road that's a perfectly straight infinitely long line.
// n cars are driving left to right;  simultaneously, a different set of n cars
// are driving right to left.   The two sets of cars start out being very far from
// each other.  All cars move in the same speed.  Two cars are said to collide
// when a car that's moving left to right hits a car that's moving right to left.
// However, the cars are infinitely sturdy and strong; as a result, they continue moving
// in their trajectory as if they did not collide.
// This function outputs the number of such collisions.
func carRaceCollision(n: Int) -> Int {
  var collisions = 0
  var leftCars = n
  var rightCars = n
  var leftCar = 1
  var rightCar = n
  while leftCars > 0 && rightCars > 0 {
    if leftCar < rightCar {
      leftCars -= 1
      rightCars -= 1
    } else {
      rightCars -= 1
    }
    leftCar += 1
    rightCar -= 1
    collisions += 1
  }
  return collisions
}
<|file_separator|>
 // XCTAssertTrue failed

func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

func doubleHalfList(l: [Int]) -> [Double] {
    return doubleList(l: halfList(l: l))
}
```swift
// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements decremented by 1.
// decrList(l: [1, 2, 3]) == [0, 1, 2]
// decrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [4, 2, 4, 1, 2, 2, 8, 0, 122]
func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

// Return array with elements multiplied by 2.
// doubleList(l: [1, 2, 3]) == [2, 4, 6]
// doubleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [10, 6, 10, 4, 6, 6, 18, 0, 246]
func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

// Return array with elements divided by 2.
// halfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// halfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.0, 1.5, 1.5, 4.5, 0.0, 61.5]
func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// doubleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.0, 1.5, 1.5, 4.5, 0.0, 61.5]
func doubleHalfList(l: [Int]) -> [Double] {
    return doubleList(l: halfList(l: l))
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// doubleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.0, 1.5, 1.5, 4.5, 0.0, 61.5]
func doubleHalfList(l: [Int]) -> [Double] {
    return doubleList(l: halfList(l: l))
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// doubleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.0, 1.5, 1.5, 4.5, 0.0, 61.5]
func doubleHalfList(l: [Int]) -> [Double] {
    return doubleList(l: halfList(l: l))
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// doubleHalfList(l: [5, 3, 5, 2, 3, 3, 
return doubleList(l: halfList(l: l)) // cannot convert return expression of type '[Int]' to return type '[Double]'
return doubleList(l: halfList(l: l)) // cannot convert value of type '[Double]' to expected argument type '[Int]'

func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func incrList2(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func incrList3(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func incrList4(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func incrList5(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func incrList6(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func incrList7(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func incrList8(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}
```swift
// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList2(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList3(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList4(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList5(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList6(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList7(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList8(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2,

func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}
```swift
// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 

func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2.0 }
}

func tripleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2.0 / 2.0 }
}
```swift
// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements decremented by 1.
// decrList(l: [1, 2, 3]) == [0, 1, 2]
// decrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [4, 2, 4, 1, 2, 2, 8, 0, 122]
func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

// Return array with elements multiplied by 2.
// doubleList(l: [1, 2, 3]) == [2, 4, 6]
// doubleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [10, 6, 10, 4, 6, 6, 18, 0, 246]
func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

// Return array with elements divided by 2.
// halfList(l: [1, 2, 3]) == [0.5, 1, 1.5]
// halfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.5, 1.5, 1.5, 4.5, 0, 61.5]
func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2.0 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// tripleHalfList(l: [1, 2, 3]) == [0.5, 1, 1.5]
// tripleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.5, 1.5, 1.5, 4.5, 0, 61.5]
func tripleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2.0 / 2.0 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// tripleHalfList(l: [1, 2, 3]) == [0.5, 1, 1.5]
// tripleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.5, 1.5, 1.5, 4.5, 0, 61.5]
func tripleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2.0 / 2.0 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// tripleHalfList(l: [1, 2, 3]) == [0.5, 1, 1.5]
// tripleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.5, 1.5, 1.5, 4.5, 0, 61.5]
func tripleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2.0 / 2.0 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// tripleHalfList(l: [1, 2, 3]) == [0.5, 1, 1.5]
// tripleHalfList(l: [5, 3, 5, 2, 3

func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

func oddEvenList(l: [Int]) -> [Int] {
    return l.map { $0 % 2 == 0 ? $0 - 1 : $0 + 1 }
}
```swift
// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements decremented by 1.
// decrList(l: [1, 2, 3]) == [0, 1, 2]
// decrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [4, 2, 4, 1, 2, 2, 8, 0, 122]
func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

// Return array with elements multiplied by 2.
// doubleList(l: [1, 2, 3]) == [2, 4, 6]
// doubleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [10, 6, 10, 4, 6, 6, 18, 0, 246]
func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

// Return array with elements divided by 2.
// halfList(l: [1, 2, 3]) == [0.5, 1, 1.5]
// halfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.5, 1.5, 1.5, 4.5, 0, 61.5]
func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

// Return array with elements incremented by 1, if the element is odd, and decremented if the element is even.
// oddEvenList(l: [1, 2, 3]) == [2, 1, 3]
// oddEvenList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 5, 3, 4, 3, 8, 0, 122]
func oddEvenList(l: [Int]) -> [Int] {
    return l.map { $0 % 2 == 0 ? $0 - 1 : $0 + 1 }
}

// Return array with elements incremented by 1, if the element is odd, and decremented if the element is even.
// oddEvenList(l: [1, 2, 3]) == [2, 1, 3]
// oddEvenList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 5, 3, 4, 3, 8, 0, 122]
func oddEvenList(l: [Int]) -> [Int] {
    return l.map { $0 % 2 == 0 ? $0 - 1 : $0 + 1 }
}

// Return array with elements incremented by 1, if the element is odd, and decremented if the element is even.
// oddEvenList(l: [1, 2, 3]) == [2, 1, 3]
// oddEvenList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 5, 3, 4, 3, 8, 0, 122]
func oddEvenList(l: [Int]) -> [Int] {
    return l.map { $0 % 2 == 0 ? $0 - 1 : $0 + 1 }
}

// Return array with elements incremented by 1, if the element is odd, and decremented if the element is even.
// oddEvenList(l: [1, 2, 3]) == [2, 1, 3]
// oddEvenList(l: [5, 3, 5, 2, 3, 3, 

func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

func tripleList(l: [Int]) -> [Int] {
    return l.map { $0 * 3 }
}
```swift
// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements decremented by 1.
// decrList(l: [1, 2, 3]) == [0, 1, 2]
// decrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [4, 2, 4, 1, 2, 2, 8, 0, 122]
func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

// Return array with elements multiplied by 2.
// doubleList(l: [1, 2, 3]) == [2, 4, 6]
// doubleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [10, 6, 10, 4, 6, 6, 18, 0, 246]
func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

// Return array with elements divided by 2.
// halfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// halfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.0, 1.5, 1.5, 4.5, 0.0, 61.5]
func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

// Return array with elements multiplied by 3.
// tripleList(l: [1, 2, 3]) == [3, 6, 9]
// tripleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [15, 9, 15, 6, 9, 9, 27, 0, 369]
func tripleList(l: [Int]) -> [Int] {
    return l.map { $0 * 3 }
}

// Return array with elements multiplied by 3.
// tripleList(l: [1, 2, 3]) == [3, 6, 9]
// tripleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [15, 9, 15, 6, 9, 9, 27, 0, 369]
func tripleList(l: [Int]) -> [Int] {
    return l.map { $0 * 3 }
}

// Return array with elements multiplied by 3.
// tripleList(l: [1, 2, 3]) == [3, 6, 9]
// tripleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [15, 9, 15, 6, 9, 9, 27, 0, 369]
func tripleList(l: [Int]) -> [Int] {
    return l.map { $0 * 3 }
}

// Return array with elements multiplied by 3.
// tripleList(l: [1, 2, 3]) == [3, 6, 9]
// tripleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [15, 9, 15, 6, 9, 9, 27, 0, 369]
func tripleList(l: [Int]) -> [Int] {
    return l.map { $0 * 3 }
}

// Return array with elements multiplied by 3.
// tripleList(l: [1, 2, 3]) == [3, 6,

func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

func doubleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2 }.map { $0 / 2 }
}
```swift
// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements decremented by 1.
// decrList(l: [1, 2, 3]) == [0, 1, 2]
// decrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [4, 2, 4, 1, 2, 2, 8, 0, 122]
func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

// Return array with elements multiplied by 2.
// doubleList(l: [1, 2, 3]) == [2, 4, 6]
// doubleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [10, 6, 10, 4, 6, 6, 18, 0, 246]
func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

// Return array with elements divided by 2.
// halfList(l: [1, 2, 3]) == [0.5, 1, 1.5]
// halfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.5, 1.5, 1.5, 4.5, 0, 61.5]
func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1, 1.5]
// doubleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.5, 1.5, 1.5, 4.5, 0, 61.5]
func doubleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2 }.map { $0 / 2 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1, 1.5]
// doubleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.5, 1.5, 1.5, 4.5, 0, 61.5]
func doubleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2 }.map { $0 / 2 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1, 1.5]
// doubleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.5, 1.5, 1.5, 4.5, 0, 61.5]
func doubleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2 }.map { $0 / 2 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1, 1.5]
// doubleHalfList(l: [5, 3, 5, 2, 

func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

func tripleList(l: [Int]) -> [Int] {
    return l.map { $0 * 3 }
}

func quarterList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 3 }
}
```swift
// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements decremented by 1.
// decrList(l: [1, 2, 3]) == [0, 1, 2]
// decrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [4, 2, 4, 1, 2, 2, 8, 0, 122]
func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

// Return array with elements multiplied by 2.
// doubleList(l: [1, 2, 3]) == [2, 4, 6]
// doubleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [10, 6, 10, 4, 6, 6, 18, 0, 246]
func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

// Return array with elements divided by 2.
// halfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// halfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.0, 1.5, 1.5, 4.5, 0.5, 61.5]
func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

// Return array with elements multiplied by 3.
// tripleList(l: [1, 2, 3]) == [3, 6, 9]
// tripleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [15, 9, 15, 6, 9, 9, 27, 0, 369]
func tripleList(l: [Int]) -> [Int] {
    return l.map { $0 * 3 }
}

// Return array with elements divided by 3.
// quarterList(l: [1, 2, 3]) == [0.3333333333333333, 0.6666666666666666, 0.9999999999999999]
// quarterList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [1.6666666666666665, 1.3333333333333333, 1.6666666666666665, 0.6666666666666666, 1.3333333333333333, 1.3333333333333333, 3.3333333333333335, 0.3333333333333333, 39.333333333333336]
func quarterList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 3 }
}

// Return array with elements multiplied by 5.
// fiveList(l: [1, 2, 3]) == [5, 10, 15]
// fiveList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [25, 15, 25, 10, 15, 15, 45, 

func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}
```swift
// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}
<|file_separator|>

func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

func doubleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2 }.map { $0 / 2 }
}
```swift
// Return array with elements incremented by 1.
// incrList(l: [1, 2, 3]) == [2, 3, 4]
// incrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [6, 4, 6, 3, 4, 4, 10, 1, 124]
func incrList(l: [Int]) -> [Int] {
    return l.map { $0 + 1 }
}

// Return array with elements decremented by 1.
// decrList(l: [1, 2, 3]) == [0, 1, 2]
// decrList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [4, 2, 4, 1, 2, 2, 8, 0, 122]
func decrList(l: [Int]) -> [Int] {
    return l.map { $0 - 1 }
}

// Return array with elements multiplied by 2.
// doubleList(l: [1, 2, 3]) == [2, 4, 6]
// doubleList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [10, 6, 10, 4, 6, 6, 18, 0, 246]
func doubleList(l: [Int]) -> [Int] {
    return l.map { $0 * 2 }
}

// Return array with elements divided by 2.
// halfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// halfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.0, 1.5, 1.5, 4.5, 0.0, 61.5]
func halfList(l: [Int]) -> [Double] {
    return l.map { Double($0) / 2 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// doubleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.0, 1.5, 1.5, 4.5, 0.0, 61.5]
func doubleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2 }.map { $0 / 2 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// doubleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.0, 1.5, 1.5, 4.5, 0.0, 61.5]
func doubleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2 }.map { $0 / 2 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// doubleHalfList(l: [5, 3, 5, 2, 3, 3, 9, 0, 123]) == [2.5, 1.5, 2.5, 1.0, 1.5, 1.5, 4.5, 0.0, 61.5]
func doubleHalfList(l: [Int]) -> [Double] {
    return l.map { Double($0) * 2 }.map { $0 / 2 }
}

// Return array with elements multiplied by 2 and then divided by 2.
// doubleHalfList(l: [1, 2, 3]) == [0.5, 1.0, 1.5]
// double

func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero2(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero3(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero4(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero5(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}
```swift
// pairs_sum_to_zero takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero(l: [1, 3, 5, 0]) == false
// pairsSumToZero(l: [1, 3, -2, 1]) == false
// pairsSumToZero(l: [1, 2, 3, 7]) == false
// pairsSumToZero(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero(l: [1]) == false
func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_2 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero2(l: [1, 3, 5, 0]) == false
// pairsSumToZero2(l: [1, 3, -2, 1]) == false
// pairsSumToZero2(l: [1, 2, 3, 7]) == false
// pairsSumToZero2(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero2(l: [1]) == false
func pairsSumToZero2(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_3 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero3(l: [1, 3, 5, 0]) == false
// pairsSumToZero3(l: [1, 3, -2, 1]) == false
// pairsSumToZero3(l: [1, 2, 3, 7]) == false
// pairsSumToZero3(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero3(l: [1]) == false
func pairsSumToZero3(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_4 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero4(l: [1, 3, 5, 0]) == false
// pairsSumToZero4(l: [1, 3, -2, 1]) == false
// pairsSumToZero4(l: [1, 2, 3, 7]) == false
// pairsSumToZero4(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero4(l: [1]) == false
func pairsSumToZero4(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_5 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero5(l: [1, 3, 5, 0]) == false
// pairsSumToZero5(l: [1, 3, -2, 1]) == false
// pairsSumToZero5(l: [1, 2, 3, 7]) == false
// pairsSumToZero5(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero5(l: [1]) == false
func pairsSumToZero5(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_6 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
//

func pairsSumToZero(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

func pairsSumToZero2(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

func pairsSumToZero3(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

func pairsSumToZero4(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

func pairsSumToZero5(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}
```swift
// pairs_sum_to_zero takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero(l: [1, 3, 5, 0]) == false
// pairsSumToZero(l: [1, 3, -2, 1]) == false
// pairsSumToZero(l: [1, 2, 3, 7]) == false
// pairsSumToZero(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero(l: [1]) == false
func pairsSumToZero(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

// pairs_sum_to_zero_2 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero2(l: [1, 3, 5, 0]) == false
// pairsSumToZero2(l: [1, 3, -2, 1]) == true
// pairsSumToZero2(l: [1, 2, 3, 7]) == false
// pairsSumToZero2(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero2(l: [1]) == false
func pairsSumToZero2(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

// pairs_sum_to_zero_3 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero3(l: [1, 3, 5, 0]) == false
// pairsSumToZero3(l: [1, 3, -2, 1]) == true
// pairsSumToZero3(l: [1, 2, 3, 7]) == false
// pairsSumToZero3(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero3(l: [1]) == false
func pairsSumToZero3(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

// pairs_sum_to_zero_4 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero4(l: [1, 3, 5, 0]) == false
// pairsSumToZero4(l: [1, 3, -2, 1]) == true
// pairsSumToZero4(l: [1, 2, 3, 7]) == false
// pairsSumToZero4(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero4(l: [1]) == false
func pairsSumToZero4(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

// pairs_sum_to_zero_5 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero5(l: [1, 3, 5, 0]) == false
// pairsSumToZero5(l: [1, 3, -2, 1]) == true
// pairsSumToZero5(l: [1, 2, 3, 7]) == false
// pairsSumToZero5(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero5(l: [1]) == false
func pairsSumToZero5(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

// pairs_sum_to_zero_6 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
//

func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}
```swift
// pairs_sum_to_zero takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero(l: [1, 3, 5, 0]) == false
// pairsSumToZero(l: [1, 3, -2, 1]) == false
// pairsSumToZero(l: [1, 2, 3, 7]) == false
// pairsSumToZero(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero(l: [1]) == false
func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}
<|file_separator|>

func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}
```swift
// pairs_sum_to_zero takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero(l: [1, 3, 5, 0]) == false
// pairsSumToZero(l: [1, 3, -2, 1]) == false
// pairsSumToZero(l: [1, 2, 3, 7]) == false
// pairsSumToZero(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero(l: [1]) == false
func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(i * -1) {
            return true
        }
        set.insert(i)
    }
    return false
}
<|file_separator|>```

func pairsSumToZero(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i) {
            return true
        } else {
            seen.insert(i)
        }
    }
    return false
}
```swift
// pairs_sum_to_zero takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero(l: [1, 3, 5, 0]) == false
// pairsSumToZero(l: [1, 3, -2, 1]) == false
// pairsSumToZero(l: [1, 2, 3, 7]) == false
// pairsSumToZero(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero(l: [1]) == false
func pairsSumToZero(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i) {
            return true
        } else {
            seen.insert(i)
        }
    }
    return false
}

// pairs_sum_to_zero_v2 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero(l: [1, 3, 5, 0]) == false
// pairsSumToZero(l: [1, 3, -2, 1]) == false
// pairsSumToZero(l: [1, 2, 3, 7]) == false
// pairsSumToZero(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero(l: [1]) == false
func pairsSumToZero(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i) {
            return true
        } else {
            seen.insert(i)
        }
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero2(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero3(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero4(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero5(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}
```swift
// pairs_sum_to_zero takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero(l: [1, 3, 5, 0]) == false
// pairsSumToZero(l: [1, 3, -2, 1]) == false
// pairsSumToZero(l: [1, 2, 3, 7]) == false
// pairsSumToZero(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero(l: [1]) == false
func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_2 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero2(l: [1, 3, 5, 0]) == false
// pairsSumToZero2(l: [1, 3, -2, 1]) == false
// pairsSumToZero2(l: [1, 2, 3, 7]) == false
// pairsSumToZero2(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero2(l: [1]) == false
func pairsSumToZero2(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_3 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero3(l: [1, 3, 5, 0]) == false
// pairsSumToZero3(l: [1, 3, -2, 1]) == false
// pairsSumToZero3(l: [1, 2, 3, 7]) == false
// pairsSumToZero3(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero3(l: [1]) == false
func pairsSumToZero3(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_4 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero4(l: [1, 3, 5, 0]) == false
// pairsSumToZero4(l: [1, 3, -2, 1]) == false
// pairsSumToZero4(l: [1, 2, 3, 7]) == false
// pairsSumToZero4(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero4(l: [1]) == false
func pairsSumToZero4(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_5 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero5(l: [1, 3, 5, 0]) == false
// pairsSumToZero5(l: [1, 3, -2, 1]) == false
// pairsSumToZero5(l: [1, 2, 3, 7]) == false
// pairsSumToZero5(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero5(l: [1]) == false
func pairsSumToZero5(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_6 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero6(l: [1, 3, 

func pairsSumToZero(l: [Int]) -> Bool {
    var pairs = Set<Int>()
    for i in l {
        if pairs.contains(-i) {
            return true
        }
        pairs.insert(i)
    }
    return false
}

func pairsSumToZero2(l: [Int]) -> Bool {
    var pairs = Set<Int>()
    for i in l {
        if pairs.contains(-i) {
            return true
        }
        pairs.insert(i)
    }
    return false
}

func pairsSumToZero3(l: [Int]) -> Bool {
    var pairs = Set<Int>()
    for i in l {
        if pairs.contains(-i) {
            return true
        }
        pairs.insert(i)
    }
    return false
}

func pairsSumToZero4(l: [Int]) -> Bool {
    var pairs = Set<Int>()
    for i in l {
        if pairs.contains(-i) {
            return true
        }
        pairs.insert(i)
    }
    return false
}

func pairsSumToZero5(l: [Int]) -> Bool {
    var pairs = Set<Int>()
    for i in l {
        if pairs.contains(-i) {
            return true
        }
        pairs.insert(i)
    }
    return false
}
```swift
// pairs_sum_to_zero takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero(l: [1, 3, 5, 0]) == false
// pairsSumToZero(l: [1, 3, -2, 1]) == false
// pairsSumToZero(l: [1, 2, 3, 7]) == false
// pairsSumToZero(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero(l: [1]) == false
func pairsSumToZero(l: [Int]) -> Bool {
    var pairs = Set<Int>()
    for i in l {
        if pairs.contains(-i) {
            return true
        }
        pairs.insert(i)
    }
    return false
}

// pairs_sum_to_zero_2 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero2(l: [1, 3, 5, 0]) == false
// pairsSumToZero2(l: [1, 3, -2, 1]) == false
// pairsSumToZero2(l: [1, 2, 3, 7]) == false
// pairsSumToZero2(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero2(l: [1]) == false
func pairsSumToZero2(l: [Int]) -> Bool {
    var pairs = Set<Int>()
    for i in l {
        if pairs.contains(-i) {
            return true
        }
        pairs.insert(i)
    }
    return false
}

// pairs_sum_to_zero_3 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero3(l: [1, 3, 5, 0]) == false
// pairsSumToZero3(l: [1, 3, -2, 1]) == false
// pairsSumToZero3(l: [1, 2, 3, 7]) == false
// pairsSumToZero3(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero3(l: [1]) == false
func pairsSumToZero3(l: [Int]) -> Bool {
    var pairs = Set<Int>()
    for i in l {
        if pairs.contains(-i) {
            return true
        }
        pairs.insert(i)
    }
    return false
}

// pairs_sum_to_zero_4 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero4(l: [1, 3, 5, 0]) == false
// pairsSumToZero4(l: [1, 3, -2, 1]) == false
// pairsSumToZero4(l: [1, 2, 3, 7]) == false
// pairsSumToZero4(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero4(l: [1]) == false
func pairsSumToZero4(l: [Int]) -> Bool {
    var pairs = Set<Int>()
    for i in l {
        if pairs.contains(-i) {
            return true
        }
        pairs.insert(i)
    }
    return false
}

// pairs_sum_to_zero_5 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero5(l: [1, 3, 5, 0]) == false
// pairsSumToZero5(l: [1, 3, -2, 1]) == false
// pairsSumToZero5(l: [1, 2, 3, 7]) == false
// pairsSumToZero5(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero5(l: [1]) == false
func pairsSumToZero5(l: [Int]) -> Bool {
    var pairs = Set<Int>()
    for i in l {
        if pairs.contains(-i) {
            return true
        }
        pairs.insert(i)
    }
    return false
}

// pairs_sum_to_zero_6 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero6(l: [1, 3, 

func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero2(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero3(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero4(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero5(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}
```swift
// pairs_sum_to_zero takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero(l: [1, 3, 5, 0]) == false
// pairsSumToZero(l: [1, 3, -2, 1]) == false
// pairsSumToZero(l: [1, 2, 3, 7]) == false
// pairsSumToZero(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero(l: [1]) == false
func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_2 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero2(l: [1, 3, 5, 0]) == false
// pairsSumToZero2(l: [1, 3, -2, 1]) == false
// pairsSumToZero2(l: [1, 2, 3, 7]) == false
// pairsSumToZero2(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero2(l: [1]) == false
func pairsSumToZero2(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_3 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero3(l: [1, 3, 5, 0]) == false
// pairsSumToZero3(l: [1, 3, -2, 1]) == false
// pairsSumToZero3(l: [1, 2, 3, 7]) == false
// pairsSumToZero3(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero3(l: [1]) == false
func pairsSumToZero3(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_4 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero4(l: [1, 3, 5, 0]) == false
// pairsSumToZero4(l: [1, 3, -2, 1]) == false
// pairsSumToZero4(l: [1, 2, 3, 7]) == false
// pairsSumToZero4(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero4(l: [1]) == false
func pairsSumToZero4(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_5 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero5(l: [1, 3, 5, 0]) == false
// pairsSumToZero5(l: [1, 3, -2, 1]) == false
// pairsSumToZero5(l: [1, 2, 3, 7]) == false
// pairsSumToZero5(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero5(l: [1]) == false
func pairsSumToZero5(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_6 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero6(l: [1, 3, 

func pairsSumToZero(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

func pairsSumToZero2(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

func pairsSumToZero3(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

func pairsSumToZero4(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

func pairsSumToZero5(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}
```swift
// pairs_sum_to_zero takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero(l: [1, 3, 5, 0]) == false
// pairsSumToZero(l: [1, 3, -2, 1]) == false
// pairsSumToZero(l: [1, 2, 3, 7]) == false
// pairsSumToZero(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero(l: [1]) == false
func pairsSumToZero(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

// pairs_sum_to_zero_2 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero2(l: [1, 3, 5, 0]) == false
// pairsSumToZero2(l: [1, 3, -2, 1]) == true
// pairsSumToZero2(l: [1, 2, 3, 7]) == false
// pairsSumToZero2(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero2(l: [1]) == false
func pairsSumToZero2(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

// pairs_sum_to_zero_3 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero3(l: [1, 3, 5, 0]) == false
// pairsSumToZero3(l: [1, 3, -2, 1]) == true
// pairsSumToZero3(l: [1, 2, 3, 7]) == false
// pairsSumToZero3(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero3(l: [1]) == false
func pairsSumToZero3(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

// pairs_sum_to_zero_4 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero4(l: [1, 3, 5, 0]) == false
// pairsSumToZero4(l: [1, 3, -2, 1]) == true
// pairsSumToZero4(l: [1, 2, 3, 7]) == false
// pairsSumToZero4(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero4(l: [1]) == false
func pairsSumToZero4(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

// pairs_sum_to_zero_5 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero5(l: [1, 3, 5, 0]) == false
// pairsSumToZero5(l: [1, 3, -2, 1]) == true
// pairsSumToZero5(l: [1, 2, 3, 7]) == false
// pairsSumToZero5(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero5(l: [1]) == false
func pairsSumToZero5(l: [Int]) -> Bool {
    var seen = Set<Int>()
    for i in l {
        if seen.contains(i * -1) {
            return true
        }
        seen.insert(i)
    }
    return false
}

// pairs_sum_to_zero_6 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
//

func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero2(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero3(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero4(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

func pairsSumToZero5(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}
```swift
// pairs_sum_to_zero takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero(l: [1, 3, 5, 0]) == false
// pairsSumToZero(l: [1, 3, -2, 1]) == false
// pairsSumToZero(l: [1, 2, 3, 7]) == false
// pairsSumToZero(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero(l: [1]) == false
func pairsSumToZero(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_2 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero2(l: [1, 3, 5, 0]) == false
// pairsSumToZero2(l: [1, 3, -2, 1]) == false
// pairsSumToZero2(l: [1, 2, 3, 7]) == false
// pairsSumToZero2(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero2(l: [1]) == false
func pairsSumToZero2(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_3 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero3(l: [1, 3, 5, 0]) == false
// pairsSumToZero3(l: [1, 3, -2, 1]) == false
// pairsSumToZero3(l: [1, 2, 3, 7]) == false
// pairsSumToZero3(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero3(l: [1]) == false
func pairsSumToZero3(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_4 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero4(l: [1, 3, 5, 0]) == false
// pairsSumToZero4(l: [1, 3, -2, 1]) == false
// pairsSumToZero4(l: [1, 2, 3, 7]) == false
// pairsSumToZero4(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero4(l: [1]) == false
func pairsSumToZero4(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_5 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero5(l: [1, 3, 5, 0]) == false
// pairsSumToZero5(l: [1, 3, -2, 1]) == false
// pairsSumToZero5(l: [1, 2, 3, 7]) == false
// pairsSumToZero5(l: [2, 4, -5, 3, 5, 7]) == true
// pairsSumToZero5(l: [1]) == false
func pairsSumToZero5(l: [Int]) -> Bool {
    var set = Set<Int>()
    for i in l {
        if set.contains(-i) {
            return true
        }
        set.insert(i)
    }
    return false
}

// pairs_sum_to_zero_6 takes an array of integers as an input.
// it returns true if there are two distinct elements in the array that
// sum to zero, and false otherwise.
// pairsSumToZero6(l: [1, 3, 

func changeBase(x: Int, base: Int) -> String {
    var result = ""
    var x = x
    while x > 0 {
        result = String(x % base) + result
        x = x / base
    }
    return result
}
```swift
// Change numerical base of input number x to base.
// return string representation after the conversion.
// base numbers are less than 10.
// changeBase(x: 8, base: 3) == "22"
// changeBase(x: 8, base: 2) == "1000"
// changeBase(x: 7, base: 2) == "111"
func changeBase(x: Int, base: Int) -> String {
    var result = ""
    var x = x
    while x > 0 {
        result = String(x % base) + result
        x = x / base
    }
    return result
}
<|file_separator|>

func changeBase(x: Int, base: Int) -> String {
    var x = x
    var result = ""
    while x > 0 {
        result = String(x % base) + result
        x /= base
    }
    return result
}
```swift
// Change numerical base of input number x to base.
// return string representation after the conversion.
// base numbers are less than 10.
// changeBase(x: 8, base: 3) == "22"
// changeBase(x: 8, base: 2) == "1000"
// changeBase(x: 7, base: 2) == "111"
func changeBase(x: Int, base: Int) -> String {
    var x = x
    var result = ""
    while x > 0 {
        result = String(x % base) + result
        x /= base
    }
    return result
}
<|file_separator|>

func changeBase(x: Int, base: Int) -> String {
    var x = x
    var result = ""
    var base = base
    while x > 0 {
        result = String(x % base) + result
        x /= base
    }
    return result
}
```swift
// Change numerical base of input number x to base.
// return string representation after the conversion.
// base numbers are less than 10.
// changeBase(x: 8, base: 3) == "22"
// changeBase(x: 8, base: 2) == "1000"
// changeBase(x: 7, base: 2) == "111"
func changeBase(x: Int, base: Int) -> String {
    var x = x
    var result = ""
    var base = base
    while x > 0 {
        result = String(x % base) + result
        x /= base
    }
    return result
}
<|file_separator|>
var base = base // variable 'base' was never mutated; consider changing to 'let' constant

func changeBase(x: Int, base: Int) -> String {
    var x = x
    var result = ""
    while x > 0 {
        let remainder = x % base
        result = String(remainder) + result
        x /= base
    }
    return result
}
```swift
// Change numerical base of input number x to base.
// return string representation after the conversion.
// base numbers are less than 10.
// changeBase(x: 8, base: 3) == "22"
// changeBase(x: 8, base: 2) == "1000"
// changeBase(x: 7, base: 2) == "111"
func changeBase(x: Int, base: Int) -> String {
    var x = x
    var result = ""
    while x > 0 {
        let remainder = x % base
        result = String(remainder) + result
        x /= base
    }
    return result
}
<|file_separator|>

func changeBase(x: Int, base: Int) -> String {
    var result = ""
    var x = x
    while x > 0 {
        let digit = x % base
        result = "\(digit)" + result
        x /= base
    }
    return result
}
```swift
// Change numerical base of input number x to base.
// return string representation after the conversion.
// base numbers are less than 10.
// changeBase(x: 8, base: 3) == "22"
// changeBase(x: 8, base: 2) == "1000"
// changeBase(x: 7, base: 2) == "111"
func changeBase(x: Int, base: Int) -> String {
    var result = ""
    var x = x
    while x > 0 {
        let digit = x % base
        result = "\(digit)" + result
        x /= base
    }
    return result
}
<|file_separator|>

func changeBase(x: Int, base: Int) -> String {
    var x = x
    var base = base
    var result = ""
    while x > 0 {
        let remainder = x % base
        result = String(remainder) + result
        x /= base
    }
    return result
}
```swift
// Change numerical base of input number x to base.
// return string representation after the conversion.
// base numbers are less than 10.
// changeBase(x: 8, base: 3) == "22"
// changeBase(x: 8, base: 2) == "1000"
// changeBase(x: 7, base: 2) == "111"
func changeBase(x: Int, base: Int) -> String {
    var x = x
    var base = base
    var result = ""
    while x > 0 {
        let remainder = x % base
        result = String(remainder) + result
        x /= base
    }
    return result
}
<|file_separator|>```
var base = base // variable 'base' was never mutated; consider changing to 'let' constant

func changeBase(x: Int, base: Int) -> String {
    var x = x
    var base = base
    var result = ""
    while x > 0 {
        let remainder = x % base
        result = String(remainder) + result
        x = x / base
    }
    return result
}
```swift
// Change numerical base of input number x to base.
// return string representation after the conversion.
// base numbers are less than 10.
// changeBase(x: 8, base: 3) == "22"
// changeBase(x: 8, base: 2) == "1000"
// changeBase(x: 7, base: 2) == "111"
func changeBase(x: Int, base: Int) -> String {
    var x = x
    var base = base
    var result = ""
    while x > 0 {
        let remainder = x % base
        result = String(remainder) + result
        x = x / base
    }
    return result
}
<|file_separator|>
var base = base // variable 'base' was never mutated; consider changing to 'let' constant

func changeBase(x: Int, base: Int) -> String {
    var result = ""
    var x = x
    while x > 0 {
        result = String(x % base) + result
        x = x / base
    }
    return result
}
```swift
// Change numerical base of input number x to base.
// return string representation after the conversion.
// base numbers are less than 10.
// changeBase(x: 8, base: 3) == "22"
// changeBase(x: 8, base: 2) == "1000"
// changeBase(x: 7, base: 2) == "111"
func changeBase(x: Int, base: Int) -> String {
    var result = ""
    var x = x
    while x > 0 {
        result = String(x % base) + result
        x = x / base
    }
    return result
}
<|file_separator|>

func changeBase(x: Int, base: Int) -> String {
    var x = x
    var result = ""
    var base = base
    while x > 0 {
        let remainder = x % base
        result = String(remainder) + result
        x = x / base
    }
    return result
}
```swift
// Change numerical base of input number x to base.
// return string representation after the conversion.
// base numbers are less than 10.
// changeBase(x: 8, base: 3) == "22"
// changeBase(x: 8, base: 2) == "1000"
// changeBase(x: 7, base: 2) == "111"
func changeBase(x: Int, base: Int) -> String {
    var x = x
    var result = ""
    var base = base
    while x > 0 {
        let remainder = x % base
        result = String(remainder) + result
        x = x / base
    }
    return result
}
<|file_separator|>
var base = base // variable 'base' was never mutated; consider changing to 'let' constant

func changeBase(x: Int, base: Int) -> String {
    var x = x
    var result = ""
    while x > 0 {
        let remainder = x % base
        result = remainder.description + result
        x = x / base
    }
    return result
}
```swift
// Change numerical base of input number x to base.
// return string representation after the conversion.
// base numbers are less than 10.
// changeBase(x: 8, base: 3) == "22"
// changeBase(x: 8, base: 2) == "1000"
// changeBase(x: 7, base: 2) == "111"
func changeBase(x: Int, base: Int) -> String {
    var x = x
    var result = ""
    while x > 0 {
        let remainder = x % base
        result = remainder.description + result
        x = x / base
    }
    return result
}
<|file_separator|>

func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

func sumDigits(n: Int) -> Int {
    var sum = 0
    var n = n
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}
```swift
// Given length of a side and high return area for a triangle.
// triangleArea(a: 5, h: 3) == 7.5
func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    var sum = 0
    var n = n
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int) -> Int {
    return String(n).reduce(0, combine: +).toInt()!
}

// Given a number return the sum of its digits.
// sumDigits(123) == 6
func sumDigits(n: Int
func sumDigits(n: Int) -> Int { // invalid redeclaration of 'sumDigits(n:)'
return String(n).reduce(0, combine: +).toInt()! // extraneous argument label 'combine:' in call
return String(n).reduce(0, combine: +).toInt()! // cannot convert value of type '(Int) -> Int' to expected argument type '(Int, String.Element) throws -> Int' (aka '(Int, Character) throws -> Int')
return String(n).reduce(0, combine: +).toInt()! // value of type 'Int' has no member 'toInt'

func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

func factorial(num: Int) -> Int {
    var result = 1
    for i in 1...num {
        result *= i
    }
    return result
}

func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}
```swift
// Given length of a side and high return area for a triangle.
// triangleArea(a: 5, h: 3) == 7.5
func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    var result = 1
    for i in 1...num {
        result *= i
    }
    return result
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    if num == 0 {
        return 1
    }
    return num * factorial(num - 1)
}

// Given a number return its factorial.
// factorial(5) == 120
func factorial(num: Int) -> Int {
    
func factorial(num: Int) -> Int { // invalid redeclaration of 'factorial(num:)'
return num * factorial(num - 1) // missing argument label 'num:' in call

func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

func repeatString(str: String, n: Int) -> String {
    return String(str.repeat(n))
}

func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}
```swift
// Given length of a side and high return area for a triangle.
// triangleArea(a: 5, h: 3) == 7.5
func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

// Given a string and a number, return a string with the number of copies of the string.
// repeatString("Hi", 3) == "HiHiHi"
func repeatString(str: String, n: Int) -> String {
    return String(str.repeat(n))
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(str: String) -> String {
    return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString })
}

// Given a string, return a string with the first letter of each word capitalized.
// capitalize("hello world") == "Hello World"
func capitalize(
return String(str.repeat(n)) // value of type 'String' has no member 'repeat'
return String(str.componentsSeparatedByString(" ").map { $0.capitalizedString }) // value of type 'String' has no member 'componentsSeparatedByString'

func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}
```swift
// Given length of a side and high return area for a triangle.
// triangleArea(a: 5, h: 3) == 7.5
func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// stringTrimmer("hello") == "ell"
func stringTrimmer(str: String) -> String {
    return String(str.characters.dropFirst().dropLast())
}

// Given a string, return
return String(str.characters.dropFirst().dropLast()) // 'characters' is unavailable: Please use String directly

func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}
```swift
// Given length of a side and high return area for a triangle.
// triangleArea(a: 5, h: 3) == 7.5
func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String {
    return String(str.dropFirst().dropLast())
}

// Given a string, return a string with the first and last char removed.
// removeFirstLast("hello") == "ell"
func removeFirstLast(str: String) -> String

func triangleArea(a: Int, h: Int) -> Double {
  return Double(a * h) / 2
}

func countChar(str: String, char: Character) -> Int {
  var count = 0
  for c in str {
    if c == char {
      count += 1
    }
  }
  return count
}

func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}
```swift
// Given length of a side and high return area for a triangle.
// triangleArea(a: 5, h: 3) == 7.5
func triangleArea(a: Int, h: Int) -> Double {
  return Double(a * h) / 2
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  var count = 0
  for c in str {
    if c == char {
      count += 1
    }
  }
  return count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
  return str.characters.filter { $0 == char }.count
}

// Given a string and a character, return the number of times the character appears in the string.
// countChar("hello", "l") == 2
func countChar(str: String, char: Character) -> Int {
func countChar(str: String, char: Character) -> Int { // invalid redeclaration of 'countChar(str:char:)'
return str.characters.filter { $0 == char }.count // 'characters' is unavailable: Please use String directly

func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

func vowelsCount(string: String) -> Int {
    var vowels = 0
    for char in string {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            vowels += 1
        }
    }
    return vowels
}

func countHi(string: String) -> Int {
    var count = 0
    for i in 0...string.count - 2 {
        if string[i] == "h" && string[i+1] == "i" {
            count += 1
        }
    }
    return count
}

func stringBits(string: String) -> String {
    var newString = ""
    for i in 0...string.count - 2 {
        newString += string[i]
    }
    return newString
}

func countOnes(string: String) -> Int {
    var count = 0
    var max = 0
    for char in string {
        if char == "1" {
            count += 1
            if count > max {
                max = count
            }
        } else {
            count = 0
        }
    }
    return max
}

func countAm(string: String) -> Int {
    var count = 0
    for i in 0...string.count - 2 {
        if string[i] == "a" && string[i+1] == "m" {
            count += 1
        }
    }
    return count
}

func stringSplosion(string: String) -> String {
    var newString = ""
    for i in 0...string.count - 1 {
        newString += string[i]
        newString += string[0...i].dropLast()
    }
    return newString
}

func countCode(string: String) -> Int {
    var count = 0
    for i in 0...string.count - 3 {
        if string[i] == "c" && string[i+1] == "o" && string[i+3] == "e" {
            count += 1
        }
    }
    return count
}

func stringTimes(string: String, n: Int) -> String {
    var newString = ""
    for i in 0...n-1 {
        newString += string[i]
    }
    return newString
}

func stringTimes(string: String, n: Int) -> String {
    var newString = ""
    for i in 1...n-1 {
        newString += string[i]
    }
    return newString
}
```swift
// Given length of a side and high return area for a triangle.
// triangleArea(a: 5, h: 3) == 7.5
func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

// Given a string, return the number of vowels in the string.
// vowelsCount("hello") == 2
func vowelsCount(string: String) -> Int {
    var vowels = 0
    for char in string {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            vowels += 1
        }
    }
    return vowels
}

// Given a string, return the number of times the string "hi" appears in the string.
// countHi("hihi") == 2
func countHi(string: String) -> Int {
    var count = 0
    for i in 0...string.count - 2 {
        if string[i] == "h" && string[i+1] == "i" {
            count += 1
        }
    }
    return count
}

// Given a string, return a new string made of every other character starting with the first, so "Hello" yields "Hlo".
// stringBits("Hello") == "Hlo"
func stringBits(string: String) -> String {
    var newString = ""
    for i in 0...string.count - 2 {
        newString += string[i]
    }
    return newString
}

// Given a string, return the length of the largest sequence of consecutive 1's in the string.
// countOnes("1101") == 2
func countOnes(string: String) -> Int {
    var count = 0
    var max = 0
    for char in string {
        if char == "1" {
            count += 1
            if count > max {
                max = count
            }
        } else {
            count = 0
        }
    }
    return max
}

// Given a string, return the number of times "am" appears in the string (case insensitive).
// countAm("Am I Am?") == 2
func countAm(string: String) -> Int {
    var count = 0
    for i in 0...string.count - 2 {
        if string[i] == "a" && string[i+1] == "m" {
            count += 1
        }
    }
    return count
}

// Given a string, return a new string made of every other character starting with the first, so "Hello" yields "Hlo".
// stringSplosion("Code") == "CCoCodCode"
func stringSplosion(string: String) -> String {
    var newString = ""
    for i in 0...string.count - 1 {
        newString += string[i]
        newString += string[0...i].dropLast()
    }
    return newString
}

// Given a string, return the number of times "code" appears anywhere in the string, except we'll accept any letter for the 'd', so "cope" and "cooe" count.
// countCode("aaacodebbb") == 1
// countCode("codexxcode") == 2
func countCode(string: String) -> Int {
    var count = 0
    for i in 0...string.count - 3 {
        if string[i] == "c" && string[i+1] == "o" && string[i+3] == "e" {
            count += 1
        }
    }
    return count
}

// Given a string, return a new string made of every other char starting with the first, so "Hello" yields "Hlo".
// stringTimes("Hello", 2) == "HHo"
func stringTimes(string: String, n: Int) -> String {
    var newString = ""
    for i in 0...n-1 {
        newString += string[i]
    }
    return newString
}

// Given a string, return a new string made of every other char starting with the second, so "Hello" yields "Lne".
// stringTimes("Hello", 2) == "Hlo"
func stringTimes(string: String, n: Int) -> String {
    var newString = ""
    for i in 1...n-1 {
        newString += string[i]
    }
    return newString
}

// Given a string, return a new string made of every other
if string[i] == "h" && string[i+1] == "i" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if string[i] == "h" && string[i+1] == "i" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
newString += string[i] // no exact matches in call to subscript
if string[i] == "a" && string[i+1] == "m" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if string[i] == "a" && string[i+1] == "m" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
newString += string[i] // no exact matches in call to subscript
newString += string[0...i].dropLast() // 'subscript(_:)' is unavailable: cannot subscript String with an integer range, use a String.Index range instead.
if string[i] == "c" && string[i+1] == "o" && string[i+3] == "e" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if string[i] == "c" && string[i+1] == "o" && string[i+3] == "e" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if string[i] == "c" && string[i+1] == "o" && string[i+3] == "e" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
newString += string[i] // no exact matches in call to subscript
func stringTimes(string: String, n: Int) -> String { // invalid redeclaration of 'stringTimes(string:n:)'
newString += string[i] // no exact matches in call to subscript

func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

func vowels(str: String) -> Int {
    var vowels = 0
    for char in str {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            vowels += 1
        }
    }
    return vowels
}

func consonants(str: String) -> Int {
    var consonants = 0
    for char in str {
        if char != "a" && char != "e" && char != "i" && char != "o" && char != "u" && char != "A" && char != "E" && char != "I" && char != "O" && char != "U" {
            consonants += 1
        }
    }
    return consonants
}

func words(str: String) -> Int {
    var words = 0
    var word = ""
    for char in str {
        if char == " " {
            words += 1
        }
    }
    return words + 1
}
```swift
// Given length of a side and high return area for a triangle.
// triangleArea(a: 5, h: 3) == 7.5
func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

// Given a string, return the number of vowels in it.
// vowels("hello") == 2
func vowels(str: String) -> Int {
    var vowels = 0
    for char in str {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            vowels += 1
        }
    }
    return vowels
}

// Given a string, return the number of consonants in it.
// consonants("hello") == 3
func consonants(str: String) -> Int {
    var consonants = 0
    for char in str {
        if char != "a" && char != "e" && char != "i" && char != "o" && char != "u" && char != "A" && char != "E" && char != "I" && char != "O" && char != "U" {
            consonants += 1
        }
    }
    return consonants
}

// Given a string, return the number of words in it.
// words("hello world") == 2
func words(str: String) -> Int {
    var words = 0
    var word = ""
    for char in str {
        if char == " " {
            words += 1
        }
    }
    return words + 1
}

// Given a string, return the number of words in it.
// words("hello world") == 2
func words(str: String) -> Int {
    var words = 0
    var word = ""
    for char in str {
        if char == " " {
            words += 1
        }
    }
    return words + 1
}

// Given a string, return the number of words in it.
// words("hello world") == 2
func words(str: String) -> Int {
    var words = 0
    var word = ""
    for char in str {
        if char == " " {
            words += 1
        }
    }
    return words + 1
}

// Given a string, return the number of words in it.
// words("hello world") == 2
func words(str: String) -> Int {
    var words = 0
    var word = ""
    for char in str {
        if char == " " {
            words += 1
        }
    }
    return words + 1
}

// Given a string, return the number of words in it.
// words("hello world") == 2
func words(str: String) -> Int {
    var words = 0
    var word = ""
    for char in str {
        if char == " " {
            words += 1
        }
    }
    return words + 1
}

// Given a string, return the number of words in it.
// words("hello world") == 2
func words(str: String) -> Int {
    var words = 0
    var word = ""
    for char in str {
        if char == " " {
            words += 1
        }
    }
    return words + 1
}

// Given a string, return the number of words in it.
// words("hello world") == 2
func words(str: String) -> Int {
    var words = 0
    var word = ""
    for char in str {
        if char == " " {
            words += 1
        }
    }
    return words + 1
}

// Given a string, return the number of words in it.
// words("hello world") == 2
func words(str: String) -> Int {
    var words = 0
    var word = ""
    for char in str {
        if char == " " {
            words += 1
        }
    }
    return words + 1
}

// Given a string, return the number of words in it.
// words("hello world") == 2
func words(str: String) -> Int {
    var words = 0
    var word = ""
    for char in str {
        if char == " " {
            words += 1
        }
    }
    return words + 1
}

// Given a string, return the number of words in it.
// words("hello world") == 
var word = "" // initialization of variable 'word' was never used; consider replacing with assignment to '_' or removing it

func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

func isEven(num: Int) -> Bool {
    return num % 2 == 0
}

func isPositive(num: Int) -> Bool {
    return num > 0
}

func isNegative(num: Int) -> Bool {
    return num < 0
}

func isZero(num: Int) -> Bool {
    return num == 0
}

func isPositiveOrZero(num: Int) -> Bool {
    return num > 0 || num == 0
}

func isNegativeOrZero(num: Int) -> Bool {
    return num < 0 || num == 0
}

func isEvenAndGreaterThan20(num: Int) -> Bool {
    return num % 2 == 0 && num > 20
}

func isOddAndLessThan100(num: Int) -> Bool {
    return num % 2 != 0 && num < 100
}

func isOddAndGreaterThan20(num: Int) -> Bool {
    return num % 2 != 0 && num > 20
}

func isEvenAndLessThan20(num: Int) -> Bool {
    return num % 2 == 0 && num < 20
}

func isNegativeAndLessThan20(num: Int) -> Bool {
    return num < 20 && num < 0
}

func isPositiveAndGreaterThan20(num: Int) -> Bool {
    return num > 20 && num > 0
}
```swift
// Given length of a side and high return area for a triangle.
// triangleArea(a: 5, h: 3) == 7.5
func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

// Given a number, return true if it's even, false if it's odd.
// isEven(2) == true
// isEven(3) == false
func isEven(num: Int) -> Bool {
    return num % 2 == 0
}

// Given a number, return true if it's positive, false if it's negative.
// isPositive(-1) == false
// isPositive(1) == true
func isPositive(num: Int) -> Bool {
    return num > 0
}

// Given a number, return true if it's negative, false if it's positive.
// isNegative(1) == false
// isNegative(-1) == true
func isNegative(num: Int) -> Bool {
    return num < 0
}

// Given a number, return true if it's zero, false if it's not.
// isZero(0) == true
// isZero(1) == false
func isZero(num: Int) -> Bool {
    return num == 0
}

// Given a number, return true if it's positive, false if it's negative or zero.
// isPositiveOrZero(1) == true
// isPositiveOrZero(-1) == false
// isPositiveOrZero(0) == true
func isPositiveOrZero(num: Int) -> Bool {
    return num > 0 || num == 0
}

// Given a number, return true if it's negative, false if it's positive or zero.
// isNegativeOrZero(1) == false
// isNegativeOrZero(-1) == true
// isNegativeOrZero(0) == true
func isNegativeOrZero(num: Int) -> Bool {
    return num < 0 || num == 0
}

// Given a number, return true if it's even and greater than 20, false if it's not.
// isEvenAndGreaterThan20(22) == true
// isEvenAndGreaterThan20(21) == false
func isEvenAndGreaterThan20(num: Int) -> Bool {
    return num % 2 == 0 && num > 20
}

// Given a number, return true if it's odd and less than 100, false if it's not.
// isOddAndLessThan100(99) == true
// isOddAndLessThan100(98) == false
func isOddAndLessThan100(num: Int) -> Bool {
    return num % 2 != 0 && num < 100
}

// Given a number, return true if it's odd and greater than 20, false if it's not.
// isOddAndGreaterThan20(22) == false
// isOddAndGreaterThan20(21) == true
func isOddAndGreaterThan20(num: Int) -> Bool {
    return num % 2 != 0 && num > 20
}

// Given a number, return true if it's even and less than 20, false if it's not.
// isEvenAndLessThan20(19) == true
// isEvenAndLessThan20(20) == false
func isEvenAndLessThan20(num: Int) -> Bool {
    return num % 2 == 0 && num < 20
}

// Given a number, return true if it's negative and less than 20, false if it's not.
// isNegativeAndLessThan20(-19) == true
// isNegativeAndLessThan20(-20) == false
func isNegativeAndLessThan20(num: Int) -> Bool {
    return num < 20 && num < 0
}

// Given a number, return true if it's positive and greater than 20, false if it's not.
// isPositiveAndGreaterThan20(22) == false
// isPositiveAndGreaterThan20(21) == true
func isPositiveAndGreaterThan20(num: Int) -> Bool {
    return num > 20 && num > 0
}

// Given a number, return true if it's negative and greater than 20, false if it's not.
// isNegativeAndGreaterThan20(-22) == true
// isNegativeAndGreaterThan20(-21) == false
func isNegativeAndGreaterThan20(num:

func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

func vowelsCount(str: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for char in str {
        if vowels.contains(String(char)) {
            count += 1
        }
    }
    return count
}

func consonantsCount(str: String) -> Int {
    let consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"]
    var count = 0
    for char in str {
        if consonants.contains(String(char)) {
            count += 1
        }
    }
    return count
}

func wordsCount(str: String) -> Int {
    let words = str.split(separator: " ")
    return words.count
}

func palindromesCount(str: String) -> Int {
    let words = str.split(separator: " ")
    var count = 0
    for word in words {
        if word == String(word.reversed()) {
            count += 1
        }
    }
    return count
}
```swift
// Given length of a side and high return area for a triangle.
// triangleArea(a: 5, h: 3) == 7.5
func triangleArea(a: Int, h: Int) -> Double {
    return Double(a * h) / 2
}

// Given a string, return the number of vowels in the string.
// vowelsCount("hello") == 2
func vowelsCount(str: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for char in str {
        if vowels.contains(String(char)) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of consonants in the string.
// consonantsCount("hello") == 3
func consonantsCount(str: String) -> Int {
    let consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"]
    var count = 0
    for char in str {
        if consonants.contains(String(char)) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of words in the string.
// wordsCount("hello") == 1
// wordsCount("hello world") == 2
func wordsCount(str: String) -> Int {
    let words = str.split(separator: " ")
    return words.count
}

// Given a string, return the number of words in the string that are palindromes.
// palindromesCount("hello") == 0
// palindromesCount("hello world") == 1
func palindromesCount(str: String) -> Int {
    let words = str.split(separator: " ")
    var count = 0
    for word in words {
        if word == String(word.reversed()) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of words in the string that are palindromes.
// palindromesCount("hello") == 0
// palindromesCount("hello world") == 1
func palindromesCount(str: String) -> Int {
    let words = str.split(separator: " ")
    var count = 0
    for word in words {
        if word == String(word.reversed()) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of words in the string that are palindromes.
// palindromesCount("hello") == 0
// palindromesCount("hello world") == 1
func palindromesCount(str: String) -> Int {
    let words = str.split(separator: " ")
    var count = 0
    for word in words {
        if word == String(word.reversed()) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of words in the string that are palindromes.
// palindromesCount("hello") == 0
// palindromesCount("hello world") == 1
func palindromesCount(str: String) -> Int {
    let words = str.split(separator: " ")
    var count = 0
    for word in words {
        if word == String(word.reversed()) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of words in the string that are palindromes.
// palindromesCount("hello") == 0
// palindromesCount("hello world") == 1
func palindromesCount(str: String) -> Int {
    let words = str.split(separator: " ")
    var count = 0
    for word in words {
        if word == String(word.reversed()) {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of words in the string that are palindromes.
// palindromesCount("hello") == 0
// palindromesCount("hello world") == 1
func palindromesCount(str: String) -> Int {
    let words = str.split(separator: " ")
    var count = 0
    for word in words {
        if word == String(word.reversed()) {
            count += 1
        }
    }

func fib4(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 2
    }
    if n == 3 {
        return 0
    }
    return fib4(n: n - 1) + fib4(n: n - 2) + fib4(n: n - 3) + fib4(n: n - 4)
}
```swift
// The Fib4 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib4(0) -> 0
// fib4(1) -> 0
// fib4(2) -> 2
// fib4(3) -> 0
// fib4(n) -> fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4).
// Please write a function to efficiently compute the n-th element of the fib4 number sequence.  Do not use recursion.
// fib4(n: 5) == 4
// fib4(n: 6) == 8
// fib4(n: 7) == 14
func fib4(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 2
    }
    if n == 3 {
        return 0
    }
    return fib4(n: n - 1) + fib4(n: n - 2) + fib4(n: n - 3) + fib4(n: n - 4)
}
<|file_separator|>

func fib4(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 2
    } else if n == 3 {
        return 0
    } else {
        return fib4(n: n-1) + fib4(n: n-2) + fib4(n: n-3) + fib4(n: n-4)
    }
}

func fib5(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 2
    } else if n == 3 {
        return 0
    } else if n == 4 {
        return 0
    } else {
        return fib5(n: n-1) + fib5(n: n-2) + fib5(n: n-3) + fib5(n: n-4) + fib5(n: n-5)
    }
}

func fib6(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 2
    } else if n == 3 {
        return 0
    } else if n == 4 {
        return 0
    } else if n == 5 {
        return 0
    } else {
        return fib6(n: n-1) + fib6(n: n-2) + fib6(n: n-3) + fib6(n: n-4) + fib6(n: n-5) + fib6(n: n-6)
    }
}
```swift
// The Fib4 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib4(0) -> 0
// fib4(1) -> 0
// fib4(2) -> 2
// fib4(3) -> 0
// fib4(n) -> fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4).
// Please write a function to efficiently compute the n-th element of the fib4 number sequence.  Do not use recursion.
// fib4(n: 5) == 4
// fib4(n: 6) == 8
// fib4(n: 7) == 14
func fib4(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 2
    } else if n == 3 {
        return 0
    } else {
        return fib4(n: n-1) + fib4(n: n-2) + fib4(n: n-3) + fib4(n: n-4)
    }
}

// The Fib5 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib5(0) -> 0
// fib5(1) -> 0
// fib5(2) -> 2
// fib5(3) -> 0
// fib5(n) -> fib5(n-1) + fib5(n-2) + fib5(n-3) + fib5(n-4) + fib5(n-5).
// Please write a function to efficiently compute the n-th element of the fib5 number sequence.  Do not use recursion.
// fib5(n: 5) == 4
// fib5(n: 6) == 8
// fib5(n: 7) == 14
func fib5(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 2
    } else if n == 3 {
        return 0
    } else if n == 4 {
        return 0
    } else {
        return fib5(n: n-1) + fib5(n: n-2) + fib5(n: n-3) + fib5(n: n-4) + fib5(n: n-5)
    }
}

// The Fib6 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib6(0) -> 0
// fib6(1) -> 0
// fib6(2) -> 2
// fib6(3) -> 0
// fib6(n) -> fib6(n-1) + fib6(n-2) + fib6(n-3) + fib6(n-4) + fib6(n-5) + fib6(n-6).
// Please write a function to efficiently compute the n-th element of the fib6 number sequence.  Do not use recursion.
// fib6(n: 5) == 4
// fib6(n: 6) == 8
// fib6(n: 7) == 14
func fib6(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 2
    } else if n == 3 {
        return 0
    } else if n == 4 {
        return 0
    } else if n == 5 {
        return 0
    } else {
        return fib6(n: n-1) + fib6(n: n-2) + fib6(n: n-3) + fib6(n: n-4) + fib6(n: n-5) + fib6(n: n-6)
    }
}

// The Fib7 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib7(0) -> 0
// fib7(1) -> 0
// fib7(2) -> 2
// fib7(3) -> 0
// fib7(n) -> fib7(n-1) + fib7(n-2) + fib7(n-3) + fib7(n-4) + fib7(n-5) + fib7(n-6) + fib7(n-7).
// Please write a function to efficiently compute the n-th element of the fib7 number sequence.  Do not use recursion.
// fib7(n: 5) == 4
// fib7(n: 6) == 8
// fib7(n: 7) == 14
func fib7(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n

func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n+1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i-1] + fib4[i-2] + fib4[i-3] + fib4[i-4]
    }
    return fib4[n]
}
```swift
// The Fib4 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib4(0) -> 0
// fib4(1) -> 0
// fib4(2) -> 2
// fib4(3) -> 0
// fib4(n) -> fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4).
// Please write a function to efficiently compute the n-th element of the fib4 number sequence.  Do not use recursion.
// fib4(n: 5) == 4
// fib4(n: 6) == 8
// fib4(n: 7) == 14
func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n+1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i-1] + fib4[i-2] + fib4[i-3] + fib4[i-4]
    }
    return fib4[n]
}
<|file_separator|>

func fib4(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 2
    }
    if n == 3 {
        return 0
    }
    return fib4(n: n-1) + fib4(n: n-2) + fib4(n: n-3) + fib4(n: n-4)
}
```swift
// The Fib4 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib4(0) -> 0
// fib4(1) -> 0
// fib4(2) -> 2
// fib4(3) -> 0
// fib4(n) -> fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4).
// Please write a function to efficiently compute the n-th element of the fib4 number sequence.  Do not use recursion.
// fib4(n: 5) == 4
// fib4(n: 6) == 8
// fib4(n: 7) == 14
func fib4(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 2
    }
    if n == 3 {
        return 0
    }
    return fib4(n: n-1) + fib4(n: n-2) + fib4(n: n-3) + fib4(n: n-4)
}
<|file_separator|>

func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n + 1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i - 1] + fib4[i - 2] + fib4[i - 3] + fib4[i - 4]
    }
    return fib4[n]
}
```swift
// The Fib4 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib4(0) -> 0
// fib4(1) -> 0
// fib4(2) -> 2
// fib4(3) -> 0
// fib4(n) -> fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4).
// Please write a function to efficiently compute the n-th element of the fib4 number sequence.  Do not use recursion.
// fib4(n: 5) == 4
// fib4(n: 6) == 8
// fib4(n: 7) == 14
func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n + 1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i - 1] + fib4[i - 2] + fib4[i - 3] + fib4[i - 4]
    }
    return fib4[n]
}
<|file_separator|>

func fib4(n: Int) -> Int {
  if n == 0 {
    return 0
  }
  if n == 1 {
    return 0
  }
  if n == 2 {
    return 2
  }
  if n == 3 {
    return 0
  }
  return fib4(n: n-1) + fib4(n: n-2) + fib4(n: n-3) + fib4(n: n-4)
}
```swift
// The Fib4 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib4(0) -> 0
// fib4(1) -> 0
// fib4(2) -> 2
// fib4(3) -> 0
// fib4(n) -> fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4).
// Please write a function to efficiently compute the n-th element of the fib4 number sequence.  Do not use recursion.
// fib4(n: 5) == 4
// fib4(n: 6) == 8
// fib4(n: 7) == 14
func fib4(n: Int) -> Int {
  if n == 0 {
    return 0
  }
  if n == 1 {
    return 0
  }
  if n == 2 {
    return 2
  }
  if n == 3 {
    return 0
  }
  return fib4(n: n-1) + fib4(n: n-2) + fib4(n: n-3) + fib4(n: n-4)
}
<|file_separator|>

func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n + 1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i-1] + fib4[i-2] + fib4[i-3] + fib4[i-4]
    }
    return fib4[n]
}
```swift
// The Fib4 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib4(0) -> 0
// fib4(1) -> 0
// fib4(2) -> 2
// fib4(3) -> 0
// fib4(n) -> fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4).
// Please write a function to efficiently compute the n-th element of the fib4 number sequence.  Do not use recursion.
// fib4(n: 5) == 4
// fib4(n: 6) == 8
// fib4(n: 7) == 14
func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n + 1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i-1] + fib4[i-2] + fib4[i-3] + fib4[i-4]
    }
    return fib4[n]
}
<|file_separator|>```

func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n + 1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i-1] + fib4[i-2] + fib4[i-3] + fib4[i-4]
    }
    return fib4[n]
}
```swift
// The Fib4 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib4(0) -> 0
// fib4(1) -> 0
// fib4(2) -> 2
// fib4(3) -> 0
// fib4(n) -> fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4).
// Please write a function to efficiently compute the n-th element of the fib4 number sequence.  Do not use recursion.
// fib4(n: 5) == 4
// fib4(n: 6) == 8
// fib4(n: 7) == 14
func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n + 1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i-1] + fib4[i-2] + fib4[i-3] + fib4[i-4]
    }
    return fib4[n]
}
<|file_separator|>```

func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n + 1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i - 1] + fib4[i - 2] + fib4[i - 3] + fib4[i - 4]
    }
    return fib4[n]
}
```swift
// The Fib4 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib4(0) -> 0
// fib4(1) -> 0
// fib4(2) -> 2
// fib4(3) -> 0
// fib4(n) -> fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4).
// Please write a function to efficiently compute the n-th element of the fib4 number sequence.  Do not use recursion.
// fib4(n: 5) == 4
// fib4(n: 6) == 8
// fib4(n: 7) == 14
func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n + 1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i - 1] + fib4[i - 2] + fib4[i - 3] + fib4[i - 4]
    }
    return fib4[n]
}
<|file_separator|>```

func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n+1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i-1] + fib4[i-2] + fib4[i-3] + fib4[i-4]
    }
    return fib4[n]
}
```swift
// The Fib4 number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fib4(0) -> 0
// fib4(1) -> 0
// fib4(2) -> 2
// fib4(3) -> 0
// fib4(n) -> fib4(n-1) + fib4(n-2) + fib4(n-3) + fib4(n-4).
// Please write a function to efficiently compute the n-th element of the fib4 number sequence.  Do not use recursion.
// fib4(n: 5) == 4
// fib4(n: 6) == 8
// fib4(n: 7) == 14
func fib4(n: Int) -> Int {
    var fib4 = [Int](repeating: 0, count: n+1)
    fib4[0] = 0
    fib4[1] = 0
    fib4[2] = 2
    fib4[3] = 0
    for i in 4...n {
        fib4[i] = fib4[i-1] + fib4[i-2] + fib4[i-3] + fib4[i-4]
    }
    return fib4[n]
}
<|file_separator|>

func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2
  } else {
    return Double(sorted[mid])
  }
}
```swift
// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2
  } else {
    return Double(sorted[mid

func median(l: [Int]) -> Double {
    let sorted = l.sorted()
    let count = sorted.count
    if count % 2 == 1 {
        return Double(sorted[count/2])
    } else {
        return Double(sorted[count/2-1] + sorted[count/2]) / 2.0
    }
}
```swift
// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
    let sorted = l.sorted()
    let count = sorted.count
    if count % 2 == 1 {
        return Double(sorted[count/2])
    } else {
        return Double(sorted[count/2-1] + sorted[count/2]) / 2.0
    }
}
<|file_separator|>

func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  if count % 2 == 1 {
    return Double(sorted[count/2])
  } else {
    return Double(sorted[count/2] + sorted[count/2 - 1]) / 2.0
  }
}
```swift
// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  if count % 2 == 1 {
    return Double(sorted[count/2])
  } else {
    return Double(sorted[count/2] + sorted[count/2 - 1]) / 2.0
  }
}
<|file_separator|>

func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 1 {
    return Double(sorted[mid])
  } else {
    return Double(sorted[mid - 1] + sorted[mid]) / 2
  }
}
```swift
// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 1 {
    return Double(sorted[mid])
  } else {
    return Double(sorted[mid - 1] + sorted[mid]) / 2
  }
}
<|file_separator|>

func median(l: [Int]) -> Double {
    let sorted = l.sorted()
    let count = sorted.count
    let mid = count / 2
    if count % 2 == 0 {
        return (Double(sorted[mid]) + Double(sorted[mid - 1])) / 2
    } else {
        return Double(sorted[mid])
    }
}

func countLessThan(l: [Int], i: Int) -> Int {
    var count = 0
    for j in 0..<l.count {
        if l[j] < l[i] {
            count += 1
        }
    }
    return count
}

func countGreaterThan(l: [Int], i: Int) -> Int {
    var count = 0
    for j in i+1..<l.count {
        if l[j] > l[i] {
            count += 1
        }
    }
    return count
}

func countLessThanOrEqual(l: [Int], i: Int) -> Int {
    var count = 0
    for j in 0..<l.count {
        if l[j] <= l[i] {
            count += 1
        }
    }
    return count
}

func countGreaterThanOrEqual(l: [Int], i: Int) -> Int {
    var count = 0
    for j in i+1..<l.count {
        if l[j] >= l[i] {
            count += 1
        }
    }
    return count
}

func countNotEqual(l: [Int], i: Int) -> Int {
    var count = 0
    for j in 0..<l.count {
        if l[j] != l[i] {
            count += 1
        }
    }
    return count
}
```swift
// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
    let sorted = l.sorted()
    let count = sorted.count
    let mid = count / 2
    if count % 2 == 0 {
        return (Double(sorted[mid]) + Double(sorted[mid - 1])) / 2
    } else {
        return Double(sorted[mid])
    }
}

// Return the number of elements in the array l that are less than the element at index i.
// countLessThan(l: [3, 1, 2, 4, 5], i: 3) == 2
// countLessThan(l: [3, 1, 2, 4, 5], i: 4) == 1
// countLessThan(l: [3, 1, 2, 4, 5], i: 5) == 0
func countLessThan(l: [Int], i: Int) -> Int {
    var count = 0
    for j in 0..<l.count {
        if l[j] < l[i] {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array l that are greater than the element at index i.
// countGreaterThan(l: [3, 1, 2, 4, 5], i: 3) == 1
// countGreaterThan(l: [3, 1, 2, 4, 5], i: 4) == 2
// countGreaterThan(l: [3, 1, 2, 4, 5], i: 5) == 0
func countGreaterThan(l: [Int], i: Int) -> Int {
    var count = 0
    for j in i+1..<l.count {
        if l[j] > l[i] {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array l that are less than or equal to the element at index i.
// countLessThanOrEqual(l: [3, 1, 2, 4, 5], i: 3) == 2
// countLessThanOrEqual(l: [3, 1, 2, 4, 5], i: 4) == 1
// countLessThanOrEqual(l: [3, 1, 2, 4, 5], i: 5) == 0
func countLessThanOrEqual(l: [Int], i: Int) -> Int {
    var count = 0
    for j in 0..<l.count {
        if l[j] <= l[i] {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array l that are greater than or equal to the element at index i.
// countGreaterThanOrEqual(l: [3, 1, 2, 4, 5], i: 3) == 1
// countGreaterThanOrEqual(l: [3, 1, 2, 4, 5], i: 4) == 2
// countGreaterThanOrEqual(l: [3, 1, 2, 4, 5], i: 5) == 0
func countGreaterThanOrEqual(l: [Int], i: Int) -> Int {
    var count = 0
    for j in i+1..<l.count {
        if l[j] >= l[i] {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array l that are not equal to the element at index i.
// countNotEqual(l: [3, 1, 2, 4, 5], i: 3) == 2
// countNotEqual(l: [3, 1, 2, 4, 5], i: 4) == 1
// countNotEqual(l: [3, 1, 2, 4, 5], i: 5) == 0
func countNotEqual(l: [Int], i: Int) -> Int {
    var count = 0
    for j in 0..<l.count {
        if l[j] != l[i] {
            count += 1
        }
    }
    return count
}

// Return the number of elements in the array l that are equal to the element at index i.
// countEqual(l: [3, 1,

func median(l: [Int]) -> Double {
    let sorted = l.sorted()
    let count = sorted.count
    let mid = count / 2
    if count % 2 == 0 {
        return Double(sorted[mid] + sorted[mid - 1]) / 2.0
    } else {
        return Double(sorted[mid])
    }
}
```swift
// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
    let sorted = l.sorted()
    let count = sorted.count
    let mid = count / 2
    if count % 2 == 0 {
        return Double(sorted[mid] + sorted[mid - 1]) / 2.0
    } else {
        return Double(sorted[mid])
    }
}
<|file_separator|>

func median(l: [Int]) -> Double {
    let sorted = l.sorted()
    let count = sorted.count
    if count % 2 == 0 {
        let mid = count / 2
        return Double(sorted[mid - 1] + sorted[mid]) / 2
    } else {
        return Double(sorted[count / 2])
    }
}
```swift
// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
    let sorted = l.sorted()
    let count = sorted.count
    if count % 2 == 0 {
        let mid = count / 2
        return Double(sorted[mid - 1] + sorted[mid]) / 2
    } else {
        return Double(sorted[count / 2])
    }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
    let sorted = l.sorted()
    let count = sorted.count
    if count % 2 == 0 {
        let mid = count / 2
        return Double(sorted[mid - 1] + sorted[mid]) / 2
    } else {
        return Double(sorted[count / 2])
    }
}
<|file_separator|>

func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  if count % 2 == 0 {
    return Double(sorted[count / 2 - 1] + sorted[count / 2]) / 2.0
  } else {
    return Double(sorted[count / 2])
  }
}
```swift
// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  if count % 2 == 0 {
    return Double(sorted[count / 2 - 1] + sorted[count / 2]) / 2.0
  } else {
    return Double(sorted[count / 2])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  if count % 2 == 0 {
    return Double(sorted[count / 2 - 1] + sorted[count / 2]) / 2.0
  } else {
    return Double(sorted[count / 2])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  if count % 2 == 0 {
    return Double(sorted[count / 2 - 1] + sorted[count / 2]) / 2.0
  } else {
    return Double(sorted[count / 2])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  if count % 2 == 0 {
    return Double(sorted[count / 2 - 1] + sorted[count / 2]) / 2.0
  } else {
    return Double(sorted[count / 2])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  if count % 2 == 0 {
    return Double(sorted[count / 2 - 1] + sorted[count / 2]) / 2.0
  } else {
    return Double(sorted[count / 2])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  if count % 2 == 0 {
    return Double(sorted[count / 2 - 1] + sorted[count / 2]) / 2.0
  } else {
    return Double(sorted[count / 2])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  if count % 2 == 0 {
    return Double(sorted[count / 2 - 1] + sorted[count / 2]) / 2.0
  

func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 1 {
    return Double(sorted[mid])
  } else {
    return Double(sorted[mid - 1] + sorted[mid]) / 2.0
  }
}
```swift
// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 1 {
    return Double(sorted[mid])
  } else {
    return Double(sorted[mid - 1] + sorted[mid]) / 2.0
  }
}
<|file_separator|>

func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2.0
  } else {
    return Double(sorted[mid])
  }
}
```swift
// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2.0
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2.0
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2.0
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2.0
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2.0
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2.0
  } else {
    return Double(sorted[mid])
  }
}

// Return median of elements in the array l.
// median(l: [3, 1, 2, 4, 5]) == 3
// median(l: [-10, 4, 6, 1000, 10, 20]) == 15.0
func median(l: [Int]) -> Double {
  let sorted = l.sorted()
  let count = sorted.count
  let mid = count / 2
  if count % 2 == 0 {
    return Double(sorted[mid] + sorted[mid - 1]) / 2.

func isPalindrome(text: String) -> Bool {
    var text = text.lowercased()
    text = text.replacingOccurrences(of: " ", with: "")
    var i = 0
    var j = text.count - 1
    while i < j {
        if text[text.startIndex] != text[text.index(before: text.endIndex)] {
            return false
        }
        i += 1
        j -= 1
    }
    return true
}
```swift
// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var text = text.lowercased()
    text = text.replacingOccurrences(of: " ", with: "")
    var i = 0
    var j = text.count - 1
    while i < j {
        if text[text.startIndex] != text[text.index(before: text.endIndex)] {
            return false
        }
        i += 1
        j -= 1
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func isPalindrome(text: String) -> Bool {
    var reversedText = ""
    for char in text {
        reversedText = String(char) + reversedText
    }
    return text == reversedText
}
```swift
// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var reversedText = ""
    for char in text {
        reversedText = String(char) + reversedText
    }
    return text == reversedText
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var reversedText = ""
    for char in text {
        reversedText = String(char) + reversedText
    }
    return text == reversedText
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var reversedText = ""
    for char in text {
        reversedText = String(char) + reversedText
    }
    return text == reversedText
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var reversedText = ""
    for char in text {
        reversedText = String(char) + reversedText
    }
    return text == reversedText
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var reversedText = ""
    for char in text {
        reversedText = String(char) + reversedText
    }
    return text == reversedText
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var reversedText = ""
    for char in text {
        reversedText = String(char) + reversedText
    }
    return text == reversedText
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var reversedText = ""
    for char in text {
        reversedText = String(char) + reversedText
    }
    return text == reversedText
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var reversedText = ""
    for char in text {
        reversedText = String(char) + reversedText
    }
    return text == reversedText
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var reversedText = ""
    for char in text {
        reversedText = String(char) + reversedText
    }
    return text == reversedText
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var reversedText = ""
    for char in text {
        reversedText = String(char) + reversedText
    }
    return text == reversedText
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true

func isPalindrome(text: String) -> Bool {
    let text = text.lowercased()
    let textArray = Array(text)
    var i = 0
    var j = textArray.count - 1
    while i < j {
        if textArray[i] != textArray[j] {
            return false
        }
        i += 1
        j -= 1
    }
    return true
}
```swift
// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased()
    let textArray = Array(text)
    var i = 0
    var j = textArray.count - 1
    while i < j {
        if textArray[i] != textArray[j] {
            return false
        }
        i += 1
        j -= 1
    }
    return true
}
<|file_separator|>

func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}
```swift
// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) ->

func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: " ", with: "")
    let reversedText = String(text.reversed())
    return text == reversedText
}
```swift
// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: " ", with: "")
    let reversedText = String(text.reversed())
    return text == reversedText
}
<|file_separator|>

func isPalindrome(text: String) -> Bool {
    var text = text.lowercased()
    text = text.replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}
```swift
// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var text = text.lowercased()
    text = text.replacingOccurrences(of: "[^a-z0-9]", with: "", options: .regularExpression)
    return text == String(text.reversed())
}
<|file_separator|>

func isPalindrome(text: String) -> Bool {
    var text = text
    text = text.lowercased()
    text = text.replacingOccurrences(of: " ", with: "")
    
    var left = 0
    var right = text.count - 1
    
    while left < right {
        if text[text.startIndex] != text[text.index(before: text.endIndex)] {
            return false
        }
        left += 1
        right -= 1
    }
    return true
}
```swift
// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var text = text
    text = text.lowercased()
    text = text.replacingOccurrences(of: " ", with: "")
    
    var left = 0
    var right = text.count - 1
    
    while left < right {
        if text[text.startIndex] != text[text.index(before: text.endIndex)] {
            return false
        }
        left += 1
        right -= 1
    }
    return true
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var text = text
    text = text.lowercased()
    text = text.replacingOccurrences(of: " ", with: "")
    
    var left = 0
    var right = text.count - 1
    
    while left < right {
        if text[text.startIndex] != text[text.index(before: text.endIndex)] {
            return false
        }
        left += 1
        right -= 1
    }
    return true
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var text = text
    text = text.lowercased()
    text = text.replacingOccurrences(of: " ", with: "")
    
    var left = 0
    var right = text.count - 1
    
    while left < right {
        if text[text.startIndex] != text[text.index(before: text.endIndex)] {
            return false
        }
        left += 1
        right -= 1
    }
    return true
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var text = text
    text = text.lowercased()
    text = text.replacingOccurrences(of: " ", with: "")
    
    var left = 0
    var right = text.count - 1
    
    while left < right {
        if text[text.startIndex] != text[text.index(before: text.endIndex)] {
            return false
        }
        left += 1
        right -= 1
    }
    return true
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var text = text
    text = text.lowercased()
    text = text.replacingOccurrences(of: " ", with: "")
    
    var left = 0
    var right = text.count - 1
    
    while left < right {
        if text[text.startIndex] != text[text.index(before: text.endIndex)] {
            return false
        }
        left += 1
        right -= 1
    }
    return true
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var text = text
    text = text.lowercased()
    text = text.replacingOccurrences(of: " ", with: "")
    
    var left = 0
    var right = text.count - 1
    
    while left < right {
        if text[text.startIndex] != text[text.index(before: text.endIndex)] {
            return false
        }
        left += 1
        right -= 1
    }
    return true
}

// Checks if given string is a palindrome
// isPalindrome(text: "") ==
 // XCTAssertTrue failed

func isPalindrome(text: String) -> Bool {
    var text = text.lowercased()
    text = text.replacingOccurrences(of: " ", with: "")
    var left = 0
    var right = text.count - 1
    while left < right {
        if text[text.index(text.startIndex, offsetBy: left)] != text[text.index(text.endIndex, offsetBy: -1 - right)] {
            return false
        }
        left += 1
        right -= 1
    }
    return true
}
```swift
// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    var text = text.lowercased()
    text = text.replacingOccurrences(of: " ", with: "")
    var left = 0
    var right = text.count - 1
    while left < right {
        if text[text.index(text.startIndex, offsetBy: left)] != text[text.index(text.endIndex, offsetBy: -1 - right)] {
            return false
        }
        left += 1
        right -= 1
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z]", with: "", options: .regularExpression)
    let reversedText = String(text.reversed())
    return text == reversedText
}
```swift
// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z]", with: "", options: .regularExpression)
    let reversedText = String(text.reversed())
    return text == reversedText
}

// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased().replacingOccurrences(of: "[^a-z]", with: "", options: .regularExpression)
    let reversedText = String(text.reversed())
    return text == reversedText
}
<|file_separator|>

func isPalindrome(text: String) -> Bool {
    let text = text.lowercased()
    var i = 0
    var j = text.count - 1
    while i < j {
        if text[text.index(text.startIndex, offsetBy: i)] != text[text.index(text.startIndex, offsetBy: j)] {
            return false
        }
        i += 1
        j -= 1
    }
    return true
}
```swift
// Checks if given string is a palindrome
// isPalindrome(text: "") == true
// isPalindrome(text: "aba") == true
// isPalindrome(text: "aaaaa") == true
// isPalindrome(text: "zbcd") == false
func isPalindrome(text: String) -> Bool {
    let text = text.lowercased()
    var i = 0
    var j = text.count - 1
    while i < j {
        if text[text.index(text.startIndex, offsetBy: i)] != text[text.index(text.startIndex, offsetBy: j)] {
            return false
        }
        i += 1
        j -= 1
    }
    return true
}
<|file_separator|>

func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}
```swift
// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
 // Fatal error: Division by zero in remainder operation

func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}
```swift
// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// mod
var p = p // variable 'p' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        if n % 2 == 0 {
            n /= 2
            p = (p * p) % p
        } else {
            n -= 1
            return (p * modp(n: n, p: p)) % p
        }
    }
    return 1
}

func gcd(a: Int, b: Int) -> Int {
    if b == 0 {
        return a
    } else {
        return gcd(a: b, b: a % b)
    }
}

func lcm(a: Int, b: Int) -> Int {
    return a * b / gcd(a: a, b: b)
}

func digits(n: Int) -> Int {
    if n == 0 {
        return 1
    } else {
        return 1 + digits(n: n / 10)
    }
}

func sumDigits(n: Int) -> Int {
    if n == 0 {
        return 0
    } else {
        return n % 10 + sumDigits(n: n / 10)
    }
}

func digitsInBinary(n: Int) -> Int {
    if n == 0 {
        return 1
    } else {
        return 1 + digitsInBinary(n: n >> 1)
    }
}
```swift
// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        if n % 2 == 0 {
            n /= 2
            p = (p * p) % p
        } else {
            n -= 1
            return (p * modp(n: n, p: p)) % p
        }
    }
    return 1
}

// Return the greatest common divisor of a and b.
// gcd(a: 12, b: 18) == 6
// gcd(a: 18, b: 12) == 6
// gcd(a: 12, b: 6) == 6
// gcd(a: 18, b: 6) == 6
// gcd(a: 6, b: 12) == 6
// gcd(a: 6, b: 18) == 6
// gcd(a: 6, b: 6) == 6
// gcd(a: 12, b: 12) == 12
// gcd(a: 18, b: 18) == 18
func gcd(a: Int, b: Int) -> Int {
    if b == 0 {
        return a
    } else {
        return gcd(a: b, b: a % b)
    }
}

// Return the least common multiple of a and b.
// lcm(a: 12, b: 18) == 36
// lcm(a: 18, b: 12) == 36
// lcm(a: 12, b: 6) == 12
// lcm(a: 18, b: 6) == 18
// lcm(a: 6, b: 12) == 12
// lcm(a: 6, b: 18) == 18
// lcm(a: 6, b: 6) == 6
// lcm(a: 12, b: 12) == 12
// lcm(a: 18, b: 18) == 18
func lcm(a: Int, b: Int) -> Int {
    return a * b / gcd(a: a, b: b)
}

// Return the number of digits in n.
// digits(n: 12345) == 5
// digits(n: 1234) == 4
// digits(n: 123) == 3
// digits(n: 12) == 2
// digits(n: 1) == 1
// digits(n: 0) == 1
func digits(n: Int) -> Int {
    if n == 0 {
        return 1
    } else {
        return 1 + digits(n: n / 10)
    }
}

// Return the sum of the digits of n.
// sumDigits(n: 12345) == 15
// sumDigits(n: 1234) == 10
// sumDigits(n: 123) == 6
// sumDigits(n: 12) == 3
// sumDigits(n: 1) == 1
// sumDigits(n: 0) == 0
func sumDigits(n: Int) -> Int {
    if n == 0 {
        return 0
    } else {
        return n % 10 + sumDigits(n: n / 10)
    }
}

// Return the number of digits in the binary representation of n.
// digitsInBinary(n: 12345) == 5
// digitsInBinary(n: 1234) == 4
// digitsInBinary(n: 123) == 3
// digitsInBinary(n: 12) == 2
// digitsInBinary(n: 1) == 1
// digitsInBinary(n: 0) == 1
func digitsInBinary(n: Int) -> Int {
    if n == 0 {
        return 1
    } else {
        return 1 + digitsInBinary(n: n >> 1)
    }
}

// Return the number of 1 bits in n.
// countOnes(n: 1234
 // Fatal error: Division by zero in remainder operation

func modp(n: Int, p: Int) -> Int {
    return (n % p + p) % p
}

func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 5
        count += n
    }
    return count
}
```swift
// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    return (n % p + p) % p
}

// Return the number of trailing zeros in n! (be aware of numerics).
// trailingZeros(10) == 1
// trailingZeros(100) == 2
// trailingZeros(1000) == 3
func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 5
        count += n
    }
    return count
}

// Return the number of trailing zeros in n! (be aware of numerics).
// trailingZeros(10) == 1
// trailingZeros(100) == 2
// trailingZeros(1000) == 3
func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 5
        count += n
    }
    return count
}

// Return the number of trailing zeros in n! (be aware of numerics).
// trailingZeros(10) == 1
// trailingZeros(100) == 2
// trailingZeros(1000) == 3
func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 5
        count += n
    }
    return count
}

// Return the number of trailing zeros in n! (be aware of numerics).
// trailingZeros(10) == 1
// trailingZeros(100) == 2
// trailingZeros(1000) == 3
func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 5
        count += n
    }
    return count
}

// Return the number of trailing zeros in n! (be aware of numerics).
// trailingZeros(10) == 1
// trailingZeros(100) == 2
// trailingZeros(1000) == 3
func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 5
        count += n
    }
    return count
}

// Return the number of trailing zeros in n! (be aware of numerics).
// trailingZeros(10) == 1
// trailingZeros(100) == 2
// trailingZeros(1000) == 3
func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 5
        count += n
    }
    return count
}

// Return the number of trailing zeros in n! (be aware of numerics).
// trailingZeros(10) == 1
// trailingZeros(100) == 2
// trailingZeros(1000) == 3
func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 5
        count += n
    }
    return count
}

// Return the number of trailing zeros in n! (be aware of numerics).
// trailingZeros(10) == 1
// trailingZeros(100) == 2
// trailingZeros(1000) == 3
func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 5
        count += n
    }
    return count
}

// Return the number of trailing zeros in n! (be aware of numerics).
// trailingZeros(10) == 1
// trailingZeros(100) == 2
// trailingZeros(1000) == 3
func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 5
        count += n
    }
    return count
}

// Return the number of trailing zeros in n! (be aware of numerics).
// trailingZeros(10) == 1
 // XCTAssertTrue failed

func modp(n: Int, p: Int) -> Int {
  var n = n
  var p = p
  if p == 1 {
    return 0
  }
  while n > 1 {
    n = n % p
    p = p % n
  }
  return n
}
```swift
// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
  var n = n
  var p = p
  if p == 1 {
    return 0
  }
  while n > 1 {
    n = n % p
    p = p % n
  }
  return n
}
<|file_separator|>
 // XCTAssertTrue failed

func modp(n: Int, p: Int) -> Int {
    return (n % p + p) % p
}

func countBits(x: Int) -> Int {
    var count = 0
    var n = x
    while n > 0 {
        count += 1
        n = n & (n - 1)
    }
    return count
}
```swift
// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    return (n % p + p) % p
}

// Return the number of 1 bits in x.
// countBits(0) == 0
// countBits(1) == 1
// countBits(2) == 1
// countBits(3) == 2
// countBits(4) == 1
// countBits(255) == 8
// countBits(256) == 1
func countBits(x: Int) -> Int {
    var count = 0
    var n = x
    while n > 0 {
        count += 1
        n = n & (n - 1)
    }
    return count
}

// Return the number of 1 bits in x.
// countBits(0) == 0
// countBits(1) == 1
// countBits(2) == 1
// countBits(3) == 2
// countBits(4) == 1
// countBits(255) == 8
// countBits(256) == 1
func countBits(x: Int) -> Int {
    var count = 0
    var n = x
    while n > 0 {
        count += 1
        n = n & (n - 1)
    }
    return count
}

// Return the number of 1 bits in x.
// countBits(0) == 0
// countBits(1) == 1
// countBits(2) == 1
// countBits(3) == 2
// countBits(4) == 1
// countBits(255) == 8
// countBits(256) == 1
func countBits(x: Int) -> Int {
    var count = 0
    var n = x
    while n > 0 {
        count += 1
        n = n & (n - 1)
    }
    return count
}

// Return the number of 1 bits in x.
// countBits(0) == 0
// countBits(1) == 1
// countBits(2) == 1
// countBits(3) == 2
// countBits(4) == 1
// countBits(255) == 8
// countBits(256) == 1
func countBits(x: Int) -> Int {
    var count = 0
    var n = x
    while n > 0 {
        count += 1
        n = n & (n - 1)
    }
    return count
}

// Return the number of 1 bits in x.
// countBits(0) == 0
// countBits(1) == 1
// countBits(2) == 1
// countBits(3) == 2
// countBits(4) == 1
// countBits(255) == 8
// countBits(256) == 1
func countBits(x: Int) -> Int {
    var count = 0
    var n = x
    while n > 0 {
        count += 1
        n = n & (n - 1)
    }
    return count
}

// Return the number of 1 bits in x.
// countBits(0) == 0
// countBits(1) == 1
// countBits(2) == 1
// countBits(3) == 2
// countBits(4) == 1
// countBits(255) == 8
// countBits(256) == 1
func countBits(x: Int) -> Int {
    var count = 0
    var n = x
    while n > 0 {
        count += 1
        n = n & (n - 1)
    }
    return count
}

// Return the number of 1 bits in x.
// countBits(0) == 0
// countBits(1) == 1
// countBits(2) == 1
// countBits(3) == 2
// countBits(4) == 1
// countBits(255) == 8
// countBits(256) == 1
func countBits(x: Int) -> Int {
    var count = 0
    var n = x
    while n > 0 {
        count += 1
        n = n & (n -
 // XCTAssertTrue failed

func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

func gcd(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let t = b
        b = a % b
        a = t
    }
    return a
}

func lcm(a: Int, b: Int) -> Int {
    return a * b / gcd(a: a, b: b)
}

func digits(n: Int) -> Int {
    var n = n
    var count = 0
    while n != 0 {
        n /= 10
        count += 1
    }
    return count
}

func sumDigits(n: Int) -> Int {
    var n = n
    var sum = 0
    while n != 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}
```swift
// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return the greatest common divisor of a and b.
// gcd(a: 12, b: 16) == 4
// gcd(a: 16, b: 12) == 4
// gcd(a: 12, b: 12) == 12
// gcd(a: 16, b: 16) == 16
func gcd(a: Int, b: Int) -> Int {
    var a = a
    var b = b
    while b != 0 {
        let t = b
        b = a % b
        a = t
    }
    return a
}

// Return the least common multiple of a and b.
// lcm(a: 12, b: 16) == 48
// lcm(a: 16, b: 12) == 48
// lcm(a: 12, b: 12) == 12
// lcm(a: 16, b: 16) == 16
func lcm(a: Int, b: Int) -> Int {
    return a * b / gcd(a: a, b: b)
}

// Return the number of digits in n.
// digits(n: 12345) == 5
// digits(n: 1234) == 4
// digits(n: 123) == 3
// digits(n: 12) == 2
// digits(n: 1) == 1
func digits(n: Int) -> Int {
    var n = n
    var count = 0
    while n != 0 {
        n /= 10
        count += 1
    }
    return count
}

// Return the sum of the digits of n.
// sumDigits(n: 12345) == 15
// sumDigits(n: 1234) == 10
// sumDigits(n: 123) == 6
// sumDigits(n: 12) == 3
// sumDigits(n: 1) == 1
func sumDigits(n: Int) -> Int {
    var n = n
    var sum = 0
    while n != 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

// Return the sum of the digits of n.
// sumDigits(n: 12345) == 15
// sumDigits(n: 1234) == 10
// sumDigits(n: 123) == 6
// sumDigits(n: 12) == 3
// sumDigits(n: 1) == 1
func sumDigits(n: Int) -> Int {
    var n = n
    var sum = 0
    while n != 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

// Return the sum of the digits of n.
// sumDigits(n: 12345) == 15
// sumDigits(n: 1234) == 10
// sumDigits(n: 123) == 6
// sumDigits(n: 12) == 3
// sumDigits(n: 1) == 1
func sumDigits(n: Int) -> Int {
    var n = n
    var sum = 0
    while n != 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

// Return the sum of the digits of n.
// sumDigits(n: 12345) == 15
// sumDigits(n: 1234) == 10
// sumDigits(n: 123) == 6
// sumDigits(n: 12) == 3
// sumDigits(n: 1) == 1
func sumDigits(n: Int) -> Int {
    var n = n
    var sum = 0
    while n != 0 {
        sum +=
var p = p // variable 'p' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    if n < 0 {
        n += p
    }
    while n < 0 {
        n += p
    }
    return n % p
}
```swift
// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    if n < 0 {
        n += p
    }
    while n < 0 {
        n += p
    }
    return n % p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    if n < 0 {
        n += p
    }
    while n < 0 {
        n += p
    }
    return n % p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    if n < 0 {
        n += p
    }
    while n < 0 {
        n += p
    }
    return n % p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    if n < 0 {
        n += p
    }
    while n < 0 {
        n += p
    }
    return n % p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    if n < 0 {
        n += p
    }
    while n < 0 {
        n += p
    }
    return n % p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    if n < 0 {
        n += p
    }
    while n < 0 {
        n += p
    }
    return n % p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 
var p = p // variable 'p' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}
```swift
// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n < 0 {
        n += p
    }
    while n > p {
        n -= p
    }
    return n
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// mod
var p = p // variable 'p' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}
```swift
// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
// modp(n: 3, p: 11) == 8
// modp(n: 100, p: 101) == 1
func modp(n: Int, p: Int) -> Int {
    var n = n
    var p = p
    while n > 0 {
        n -= 1
        p *= 2
        p %= p
    }
    return p
}

// Return 2^n modulo p (be aware of numerics).
// modp(n: 3, p: 5) == 3
// modp(n: 1101, p: 101) == 2
// modp(n: 0, p: 101) == 1
 // Fatal error: Division by zero in remainder operation

func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// remove_vowels is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// remove_vowels is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// remove_vowels is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char != "a" && char != "e" && char != "i" && char != "o" && char != "u" {
            result += String(char)
        }
    }
    return result
}
```swift
// remove_vowels is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char != "a" && char != "e" && char != "i" && char != "o" && char != "u" {
            result += String(char)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// remove_vowels is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
<|file_separator|>

func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

func removeVowelsV2(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

func removeVowelsV3(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

func removeVowelsV4(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

func removeVowelsV5(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// remove_vowels is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// remove_vowels_v2 is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowelsV2(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// remove_vowels_v3 is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowelsV3(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// remove_vowels_v4 is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowelsV4(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// remove_vowels_v5 is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowelsV5(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// remove_vowels_v6 is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// remove

func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// remove_vowels is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

func removeVowelsV2(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

func removeVowelsV3(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

func removeVowelsV4(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

func removeVowelsV5(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// remove_vowels is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// remove_vowels_v2 is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowelsV2(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// remove_vowels_v3 is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowelsV3(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// remove_vowels_v4 is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowelsV4(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// remove_vowels_v5 is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowelsV5(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// remove_vowels_v6 is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// remove

func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// remove_vowels is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" || char == "A" || char == "E" || char == "I" || char == "O" || char == "U" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
<|file_separator|>

func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if !char.isVowel() {
            result += String(char)
        }
    }
    return result
}

extension Character {
    func isVowel() -> Bool {
        return self == "a" || self == "e" || self == "i" || self == "o" || self == "u"
    }
}
```swift
// remove_vowels is a function that takes string and returns string without vowels.
// removeVowels(text: "") == ""
// removeVowels(text: "abcdef") == "bcdf"
// removeVowels(text: "aaaaa") == ""
// removeVowels(text: "aaBAA") == "B"
// removeVowels(text: "zbcd") == "zbcd"
func removeVowels(text: String) -> String {
    var result = ""
    for char in text {
        if !char.isVowel() {
            result += String(char)
        }
    }
    return result
}

extension Character {
    func isVowel() -> Bool {
        return self == "a" || self == "e" || self == "i" || self == "o" || self == "u"
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func belowThreshold(l: [Int], t: Int) -> Bool {
    for i in l {
        if i > t {
            return false
        }
    }
    return true
}
```swift
// Return true if all numbers in the array l are below threshold t.
// belowThreshold(l: [1, 2, 4, 10], t: 100) == true
// belowThreshold(l: [1, 20, 4, 10], t: 5) == false
func belowThreshold(l: [Int], t: Int) -> Bool {
    for i in l {
        if i > t {
            return false
        }
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 < t })
}
```swift
// Return true if all numbers in the array l are below threshold t.
// belowThreshold(l: [1, 2, 4, 10], t: 100) == true
// belowThreshold(l: [1, 20, 4, 10], t: 5) == false
func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 < t })
}
<|file_separator|>```

func belowThreshold(l: [Int], t: Int) -> Bool {
    for i in l {
        if i > t {
            return false
        }
    }
    return true
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        if i < t {
            sum += i
        }
    }
    return sum
}
```swift
// Return true if all numbers in the array l are below threshold t.
// belowThreshold(l: [1, 2, 4, 10], t: 100) == true
// belowThreshold(l: [1, 20, 4, 10], t: 5) == false
func belowThreshold(l: [Int], t: Int) -> Bool {
    for i in l {
        if i > t {
            return false
        }
    }
    return true
}

// Return the sum of all numbers in the array l.
// sum(l: [1, 2, 4, 10]) == 17
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

// Return the sum of all numbers in the array l that are below threshold t.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 17
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 19
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        if i < t {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers in the array l that are below threshold t.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 17
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 19
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        if i < t {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers in the array l that are below threshold t.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 17
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 19
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        if i < t {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers in the array l that are below threshold t.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 17
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 19
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        if i < t {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers in the array l that are below threshold t.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 17
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 19
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        if i < t {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers in the array l that are below threshold t.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 17
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 19
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        if i < t {
            sum += i
        }
    }
    return sum
}

// Return the sum of all numbers in the array l that are below threshold t.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 17
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 19
func sumBelowThreshold(l: [Int], t: Int)
 // XCTAssertTrue failed

func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy { $0 < t }
}

func sum(l: [Int]) -> Int {
    return l.reduce(0, +)
}

func sumAboveThreshold(l: [Int], t: Int) -> Int {
    return l.filter { $0 > t }.reduce(0, +)
}

func sumBelowThreshold(l: [Int], t: Int) -> Int {
    return l.filter { $0 < t }.reduce(0, +)
}

func sumBetweenThresholds(l: [Int], t1: Int, t2: Int) -> Int {
    return l.filter { $0 >= t1 && $0 <= t2 }.reduce(0, +)
}
```swift
// Return true if all numbers in the array l are below threshold t.
// belowThreshold(l: [1, 2, 4, 10], t: 100) == true
// belowThreshold(l: [1, 20, 4, 10], t: 5) == false
func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy { $0 < t }
}

// Return the sum of all numbers in the array l.
// sum(l: [1, 2, 4, 10]) == 17
func sum(l: [Int]) -> Int {
    return l.reduce(0, +)
}

// Return the sum of all numbers in the array l that are above threshold t.
// sumAboveThreshold(l: [1, 2, 4, 10], t: 5) == 17
func sumAboveThreshold(l: [Int], t: Int) -> Int {
    return l.filter { $0 > t }.reduce(0, +)
}

// Return the sum of all numbers in the array l that are below threshold t.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 5) == 1
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    return l.filter { $0 < t }.reduce(0, +)
}

// Return the sum of all numbers in the array l that are between threshold t1 and t2.
// sumBetweenThresholds(l: [1, 2, 4, 10], t1: 5, t2: 10) == 17
func sumBetweenThresholds(l: [Int], t1: Int, t2: Int) -> Int {
    return l.filter { $0 >= t1 && $0 <= t2 }.reduce(0, +)
}

// Return the sum of all numbers in the array l that are between threshold t1 and t2.
// sumBetweenThresholds(l: [1, 2, 4, 10], t1: 5, t2: 10) == 17
func sumBetweenThresholds(l: [Int], t1: Int, t2: Int) -> Int {
    return l.filter { $0 >= t1 && $0 <= t2 }.reduce(0, +)
}

// Return the sum of all numbers in the array l that are between threshold t1 and t2.
// sumBetweenThresholds(l: [1, 2, 4, 10], t1: 5, t2: 10) == 17
func sumBetweenThresholds(l: [Int], t1: Int, t2: Int) -> Int {
    return l.filter { $0 >= t1 && $0 <= t2 }.reduce(0, +)
}

// Return the sum of all numbers in the array l that are between threshold t1 and t2.
// sumBetweenThresholds(l: [1, 2, 4, 10], t1: 5, t2: 10) == 17
func sumBetweenThresholds(l: [Int], t1: Int, t2: Int) -> Int {
    return l.filter { $0 >= t1 && $0 <= t2 }.reduce(0, +)
}

// Return the sum of all numbers in the array l that are between threshold t1 and t2.
// sumBetweenThresholds(l: [1, 2, 4, 10], t1: 5, t2: 10) == 17
func sumBetweenThresholds(l: [Int], t1: Int, t2: Int) -> Int {
    return l.filter { $0 >= t1 && $0 <= t2 }.reduce(0, +)
}

// Return the sum of all numbers in the array l that are between threshold t1 and t2.
// sumBetweenThresholds(l: [1, 2, 4, 10], t1: 5, t2: 10) == 17
func sumBetweenThresholds(l: [Int], t1: Int, t2: Int) -> Int {
    return l.filter { $0 >= t1 && $0 <= t2 }.reduce(0, +)
}

// Return the sum of all numbers in the array l that are between threshold t1 and t2.
// sumBetweenThresholds(l: [1, 2, 4, 10], t1: 5, t2: 10) == 17
func sumBetweenThresholds(l: [Int], t1: Int, t2: Int) -> Int {
    return l.filter { $0 >= t1

func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.filter({$0 < t}).count == l.count
}

func aboveThreshold(l: [Int], t: Int) -> Bool {
    return l.filter({$0 > t}).count == l.count
}

func allEqual(l: [Int], t: Int) -> Bool {
    return l.filter({$0 != t}).count == 0
}

func notAllEqual(l: [Int], t: Int) -> Bool {
    return l.filter({$0 == t}).count == 0
}

func greaterThan(l: [Int], t: Int) -> Bool {
    return l.filter({$0 <= t}).count == 0
}

func lessThan(l: [Int], t: Int) -> Bool {
    return l.filter({$0 >= t}).count == 0
}

func allEven(l: [Int]) -> Bool {
    return l.filter({$0 % 2 != 0}).count == 0
}

func allOdd(l: [Int]) -> Bool {
    return l.filter({$0 % 2 == 0}).count == 0
}

func allPrime(l: [Int]) -> Bool {
    return l.filter({$0 % 2 == 0}).count == 0
}

func notAllPrime(l: [Int]) -> Bool {
    return l.filter({$0 % 2 == 0}).count == 0
}
```swift
// Return true if all numbers in the array l are below threshold t.
// belowThreshold(l: [1, 2, 4, 10], t: 100) == true
// belowThreshold(l: [1, 20, 4, 10], t: 5) == false
func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.filter({$0 < t}).count == l.count
}

// Return true if all numbers in the array l are above threshold t.
// aboveThreshold(l: [1, 2, 4, 10], t: 100) == false
// aboveThreshold(l: [1, 20, 4, 10], t: 5) == true
func aboveThreshold(l: [Int], t: Int) -> Bool {
    return l.filter({$0 > t}).count == l.count
}

// Return true if all numbers in the array l are equal to the first number.
// allEqual(l: [1, 1, 1, 1], t: 1) == true
// allEqual(l: [1, 2, 4, 10], t: 5) == false
func allEqual(l: [Int], t: Int) -> Bool {
    return l.filter({$0 != t}).count == 0
}

// Return true if all numbers in the array l are not equal to the first number.
// notAllEqual(l: [1, 1, 1, 1], t: 1) == false
// notAllEqual(l: [1, 2, 4, 10], t: 5) == true
func notAllEqual(l: [Int], t: Int) -> Bool {
    return l.filter({$0 == t}).count == 0
}

// Return true if all numbers in the array l are greater than the first number.
// greaterThan(l: [1, 2, 4, 10], t: 100) == false
// greaterThan(l: [1, 20, 4, 10], t: 5) == true
func greaterThan(l: [Int], t: Int) -> Bool {
    return l.filter({$0 <= t}).count == 0
}

// Return true if all numbers in the array l are less than the first number.
// lessThan(l: [1, 2, 4, 10], t: 100) == true
// lessThan(l: [1, 20, 4, 10], t: 5) == false
func lessThan(l: [Int], t: Int) -> Bool {
    return l.filter({$0 >= t}).count == 0
}

// Return true if all numbers in the array l are even.
// allEven(l: [1, 2, 4, 10]) == false
// allEven(l: [1, 20, 4, 10]) == true
func allEven(l: [Int]) -> Bool {
    return l.filter({$0 % 2 != 0}).count == 0
}

// Return true if all numbers in the array l are odd.
// allOdd(l: [1, 2, 4, 10]) == true
// allOdd(l: [1, 20, 4, 10]) == false
func allOdd(l: [Int]) -> Bool {
    return l.filter({$0 % 2 == 0}).count == 0
}

// Return true if all numbers in the array l are prime.
// allPrime(l: [1, 2, 4, 10]) == false
// allPrime(l: [1, 20, 4, 10]) == true
func allPrime(l: [Int]) -> Bool {
    return l.filter({$0 % 2 == 0}).count == 0
}

// Return true if all numbers in the array l are not prime.
// notAllPrime(l: [1, 2, 4, 10]) == true
// notAllPrime(l: [1, 20, 4, 10]) == false
func notAllPrime(l: [Int]) -> Bool {
    return l.filter({$0 % 2 == 0}).count == 0
}

// Return true if all numbers in the array l are divisible by the first number.
// divisibleBy(l: [1, 2, 4, 10], t: 2) == false
// divisibleBy(l: [1, 20, 4, 10], t: 5) == true
func divisibleBy(l:

func belowThreshold(l: [Int], t: Int) -> Bool {
    for i in l {
        if i > t {
            return false
        }
    }
    return true
}

func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    if sum < t {
        return sum
    } else {
        return 0
    }
}
```swift
// Return true if all numbers in the array l are below threshold t.
// belowThreshold(l: [1, 2, 4, 10], t: 100) == true
// belowThreshold(l: [1, 20, 4, 10], t: 5) == false
func belowThreshold(l: [Int], t: Int) -> Bool {
    for i in l {
        if i > t {
            return false
        }
    }
    return true
}

// Return the sum of all numbers in the array l.
// sum(l: [1, 2, 4, 10]) == 16
func sum(l: [Int]) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    return sum
}

// Return the sum of all numbers in the array l, but only if the sum is less than t.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 16
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 26
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    if sum < t {
        return sum
    } else {
        return 0
    }
}

// Return the sum of all numbers in the array l, but only if the sum is less than t, and return the sum of all numbers in the array l otherwise.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 16
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 26
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    if sum < t {
        return sum
    } else {
        return 0
    }
}

// Return the sum of all numbers in the array l, but only if the sum is less than t, and return the sum of all numbers in the array l otherwise.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 16
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 26
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    if sum < t {
        return sum
    } else {
        return 0
    }
}

// Return the sum of all numbers in the array l, but only if the sum is less than t, and return the sum of all numbers in the array l otherwise.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 16
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 26
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    if sum < t {
        return sum
    } else {
        return 0
    }
}

// Return the sum of all numbers in the array l, but only if the sum is less than t, and return the sum of all numbers in the array l otherwise.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 16
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 26
func sumBelowThreshold(l: [Int], t: Int) -> Int {
    var sum = 0
    for i in l {
        sum += i
    }
    if sum < t {
        return sum
    } else {
        return 0
    }
}

// Return the sum of all numbers in the array l, but only if the sum is less than t, and return the sum of all numbers in the array l otherwise.
// sumBelowThreshold(l: [1, 2, 4, 10], t: 100) == 16
// sumBelowThreshold(l: [1, 20, 4, 10], t: 5) == 26
func sumBelowThreshold(l
 // XCTAssertTrue failed

func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy { $0 < t }
}
```swift
// Return true if all numbers in the array l are below threshold t.
// belowThreshold(l: [1, 2, 4, 10], t: 100) == true
// belowThreshold(l: [1, 20, 4, 10], t: 5) == false
func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy { $0 < t }
}
<|file_separator|>```

func belowThreshold(l: [Int], t: Int) -> Bool {
    for i in l {
        if i > t {
            return false
        }
    }
    return true
}
```swift
// Return true if all numbers in the array l are below threshold t.
// belowThreshold(l: [1, 2, 4, 10], t: 100) == true
// belowThreshold(l: [1, 20, 4, 10], t: 5) == false
func belowThreshold(l: [Int], t: Int) -> Bool {
    for i in l {
        if i > t {
            return false
        }
    }
    return true
}
<|file_separator|>```
 // XCTAssertTrue failed

func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy { $0 < t }
}
```swift
// Return true if all numbers in the array l are below threshold t.
// belowThreshold(l: [1, 2, 4, 10], t: 100) == true
// belowThreshold(l: [1, 20, 4, 10], t: 5) == false
func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy { $0 < t }
}
<|file_separator|>```

func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 < t })
}

func aboveThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 > t })
}

func allEqual(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 == t })
}

func notAllEqual(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 != t })
}
```swift
// Return true if all numbers in the array l are below threshold t.
// belowThreshold(l: [1, 2, 4, 10], t: 100) == true
// belowThreshold(l: [1, 20, 4, 10], t: 5) == false
func belowThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 < t })
}

// Return true if all numbers in the array l are above threshold t.
// aboveThreshold(l: [1, 2, 4, 10], t: 100) == false
// aboveThreshold(l: [1, 20, 4, 10], t: 5) == true
func aboveThreshold(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 > t })
}

// Return true if all numbers in the array l are equal to the first number.
// allEqual(l: [1, 2, 4, 10], t: 100) == false
// allEqual(l: [1, 20, 4, 10], t: 5) == false
func allEqual(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 == t })
}

// Return true if all numbers in the array l are not equal to the first number.
// notAllEqual(l: [1, 2, 4, 10], t: 100) == true
// notAllEqual(l: [1, 20, 4, 10], t: 5) == true
func notAllEqual(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 != t })
}

// Return true if all numbers in the array l are not equal to the first number.
// notAllEqual(l: [1, 2, 4, 10], t: 100) == true
// notAllEqual(l: [1, 20, 4, 10], t: 5) == true
func notAllEqual(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 != t })
}

// Return true if all numbers in the array l are equal to the first number.
// allEqual(l: [1, 2, 4, 10], t: 100) == false
// allEqual(l: [1, 20, 4, 10], t: 5) == false
func allEqual(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 == t })
}

// Return true if all numbers in the array l are not equal to the first number.
// notAllEqual(l: [1, 2, 4, 10], t: 100) == true
// notAllEqual(l: [1, 20, 4, 10], t: 5) == true
func notAllEqual(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 != t })
}

// Return true if all numbers in the array l are equal to the first number.
// allEqual(l: [1, 2, 4, 10], t: 100) == false
// allEqual(l: [1, 20, 4, 10], t: 5) == false
func allEqual(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 == t })
}

// Return true if all numbers in the array l are not equal to the first number.
// notAllEqual(l: [1, 2, 4, 10], t: 100) == true
// notAllEqual(l: [1, 20, 4, 10], t: 5) == true
func notAllEqual(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 != t })
}

// Return true if all numbers in the array l are equal to the first number.
// allEqual(l: [1, 2, 4, 10], t: 100) == false
// allEqual(l: [1, 20, 4, 10], t: 5) == false
func allEqual(l: [Int], t: Int) -> Bool {
    return l.allSatisfy({ $0 == t })
}

// Return true if all numbers in the array l are not equal to the first number.
// not

func add(x: Int, y: Int) -> Int {
  return x + y
}
```swift
// Add two numbers x and y
// add(x: 2, y: 3) == 5
// add(x: 5, y: 7) == 12
func add(x: Int, y: Int) -> Int {
  return x + y
}
<|file_separator|>

func add(x: Int, y: Int) -> Int {
    return x + y
}
```swift
// Add two numbers x and y
// add(x: 2, y: 3) == 5
// add(x: 5, y: 7) == 12
func add(x: Int, y: Int) -> Int {
    return x + y
}
<|file_separator|>

func add(x: Int, y: Int) -> Int {
    return x + y
}
```swift
// Add two numbers x and y
// add(x: 2, y: 3) == 5
// add(x: 5, y: 7) == 12
func add(x: Int, y: Int) -> Int {
    return x + y
}
<|file_separator|>

func add(x: Int, y: Int) -> Int {
    return x + y
}
```swift
// Add two numbers x and y
// add(x: 2, y: 3) == 5
// add(x: 5, y: 7) == 12
func add(x: Int, y: Int) -> Int {
    return x + y
}
<|file_separator|>

func add(x: Int, y: Int) -> Int {
    return x + y
}
```swift
// Add two numbers x and y
// add(x: 2, y: 3) == 5
// add(x: 5, y: 7) == 12
func add(x: Int, y: Int) -> Int {
    return x + y
}
<|file_separator|>

func add(x: Int, y: Int) -> Int {
    return x + y
}
```swift
// Add two numbers x and y
// add(x: 2, y: 3) == 5
// add(x: 5, y: 7) == 12
func add(x: Int, y: Int) -> Int {
    return x + y
}
<|file_separator|>

func add(x: Int, y: Int) -> Int {
    return x + y
}

func subtract(x: Int, y: Int) -> Int {
    return x - y
}

func multiply(x: Int, y: Int) -> Int {
    return x * y
}

func divide(x: Int, y: Int) -> Double {
    return Double(x) / Double(y)
}
```swift
// Add two numbers x and y
// add(x: 2, y: 3) == 5
// add(x: 5, y: 7) == 12
func add(x: Int, y: Int) -> Int {
    return x + y
}

// Subtract two numbers x and y
// subtract(x: 2, y: 3) == -1
// subtract(x: 5, y: 7) == -2
func subtract(x: Int, y: Int) -> Int {
    return x - y
}

// Multiply two numbers x and y
// multiply(x: 2, y: 3) == 6
// multiply(x: 5, y: 7) == 35
func multiply(x: Int, y: Int) -> Int {
    return x * y
}

// Divide two numbers x and y
// divide(x: 2, y: 3) == 0.6666666666666666
// divide(x: 5, y: 7) == 0.7142857142857143
func divide(x: Int, y: Int) -> Double {
    return Double(x) / Double(y)
}
<|file_separator|>

func add(x: Int, y: Int) -> Int {
    return x + y
}
```swift
// Add two numbers x and y
// add(x: 2, y: 3) == 5
// add(x: 5, y: 7) == 12
func add(x: Int, y: Int) -> Int {
    return x + y
}
<|file_separator|>

func add(x: Int, y: Int) -> Int {
    return x + y
}
```swift
// Add two numbers x and y
// add(x: 2, y: 3) == 5
// add(x: 5, y: 7) == 12
func add(x: Int, y: Int) -> Int {
    return x + y
}
<|file_separator|>

func add(x: Int, y: Int) -> Int {
    return x + y
}
```swift
// Add two numbers x and y
// add(x: 2, y: 3) == 5
// add(x: 5, y: 7) == 12
func add(x: Int, y: Int) -> Int {
    return x + y
}
<|file_separator|>

func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for c in s0.characters {
        s0Chars.append(c)
    }
    for c in s1.characters {
        s1Chars.append(c)
    }
    s0Chars.sort()
    s1Chars.sort()
    return s0Chars == s1Chars
}
```swift
// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for c in s0.characters {
        s0Chars.append(c)
    }
    for c in s1.characters {
        s1Chars.append(c)
    }
    s0Chars.sort()
    s1Chars.sort()
    return s0Chars == s1Chars
}
<|file_separator|>```
for c in s0.characters { // 'characters' is unavailable: Please use String directly
for c in s1.characters { // 'characters' is unavailable: Please use String directly

func sameChars(s0: String, s1: String) -> Bool {
    let s0 = s0.lowercased()
    let s1 = s1.lowercased()
    let s0Chars = Array(s0)
    let s1Chars = Array(s1)
    if s0Chars.count != s1Chars.count {
        return false
    }
    var s0Chars = s0Chars.sorted()
    var s1Chars = s1Chars.sorted()
    while s0Chars.count > 0 {
        if s0Chars.removeFirst() != s1Chars.removeFirst() {
            return false
        }
    }
    return true
}
```swift
// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    let s0 = s0.lowercased()
    let s1 = s1.lowercased()
    let s0Chars = Array(s0)
    let s1Chars = Array(s1)
    if s0Chars.count != s1Chars.count {
        return false
    }
    var s0Chars = s0Chars.sorted()
    var s1Chars = s1Chars.sorted()
    while s0Chars.count > 0 {
        if s0Chars.removeFirst() != s1Chars.removeFirst() {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// palindrome(s: "abcba") == true
// palindrome(s: "abc") == false
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome(s: "abccba") == true
// palindrome
var s0Chars = s0Chars.sorted() // invalid redeclaration of 's0Chars'
var s1Chars = s1Chars.sorted() // invalid redeclaration of 's1Chars'

func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for c in s0.characters {
        s0Chars.append(c)
    }
    for c in s1.characters {
        s1Chars.append(c)
    }
    s0Chars.sort()
    s1Chars.sort()
    return s0Chars == s1Chars
}
```swift
// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for c in s0.characters {
        s0Chars.append(c)
    }
    for c in s1.characters {
        s1Chars.append(c)
    }
    s0Chars.sort()
    s1Chars.sort()
    return s0Chars == s1Chars
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for c in s0.characters {
        s0Chars.append(c)
    }
    for c in s1.characters {
        s1Chars.append(c)
    }
    s0Chars.sort()
    s1Chars.sort()
    return s0Chars == s1Chars
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for c in s0.characters {
        s0Chars.append(c)
    }
    for c in s1.characters {
        s1Chars.append(c)
    }
    s0Chars.sort()
    s1Chars.sort()
    return s0Chars == s1Chars
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for c in s0.characters {
        s0Chars.append(c)
    }
    for c in s1.characters {
        s1Chars.append(c)
    }
    s0Chars.sort()
    s1Chars.sort()
    return s0Chars == s1Chars
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc")
for c in s0.characters { // 'characters' is unavailable: Please use String directly
for c in s1.characters { // 'characters' is unavailable: Please use String directly

func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0.characters {
        s0Chars.append(char)
    }
    for char in s1.characters {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

func isPalindrome(s: String) -> Bool {
    var sChars = [Character]()
    for char in s.characters {
        sChars.append(char)
    }
    for i in 0..<sChars.count/2 {
        if sChars[i] != sChars[sChars.count-1-i] {
            return false
        }
    }
    return true
}
```swift
// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0.characters {
        s0Chars.append(char)
    }
    for char in s1.characters {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
func isPalindrome(s: String) -> Bool {
    var sChars = [Character]()
    for char in s.characters {
        sChars.append(char)
    }
    for i in 0..<sChars.count/2 {
        if sChars[i] != sChars[sChars.count-1-i] {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
func isPalindrome(s: String) -> Bool {
    var sChars = [Character]()
    for char in s.characters {
        sChars.append(char)
    }
    for i in 0..<sChars.count/2 {
        if sChars[i] != sChars[sChars.count-1-i] {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
func isPalindrome(s: String) -> Bool {
    var sChars = [Character]()
    for char in s.characters {
        sChars.append(char)
    }
    for i in 0..<sChars.count/2 {
        if sChars[i] != sChars[sChars.count-1-i] {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
func isPalindrome(s: String) -> Bool {
    var sChars = [Character]()
    for char in s.characters {
        sChars.append(char)
    }
    for i in 0..<sChars.count/2 {
        if sChars[i] != sChars[sChars.count-1-i] {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbaaa") == false
func isPalindrome(s: String) -> Bool {
    var sChars = [Character]()
    for char in s.characters {
for char in s0.characters { // 'characters' is unavailable: Please use String directly
for char in s1.characters { // 'characters' is unavailable: Please use String directly
for char in s.characters { // 'characters' is unavailable: Please use String directly

func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0 {
        s0Chars.append(char)
    }
    for char in s1 {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}
```swift
// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0 {
        s0Chars.append(char)
    }
    for char in s1 {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0 {
        s0Chars.append(char)
    }
    for char in s1 {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0 {
        s0Chars.append(char)
    }
    for char in s1 {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0 {
        s0Chars.append(char)
    }
    for char in s1 {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz
 // XCTAssertTrue failed

func sameChars(s0: String, s1: String) -> Bool {
    var s0 = s0
    var s1 = s1
    var s0Chars = Array(s0)
    var s1Chars = Array(s1)
    
    s0Chars.sort()
    s1Chars.sort()
    
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

func isPalindrome(s: String) -> Bool {
    var s = s
    s = s.lowercased()
    s = s.replacingOccurrences(of: " ", with: "")
    var sChars = Array(s)
    var sCharsReversed = Array(s)
    sCharsReversed.reverse()
    
    for i in 0..<sChars.count {
        if sChars[i] != sCharsReversed[i] {
            return false
        }
    }
    return true
}
```swift
// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0 = s0
    var s1 = s1
    var s0Chars = Array(s0)
    var s1Chars = Array(s1)
    
    s0Chars.sort()
    s1Chars.sort()
    
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbab") == false
func isPalindrome(s: String) -> Bool {
    var s = s
    s = s.lowercased()
    s = s.replacingOccurrences(of: " ", with: "")
    var sChars = Array(s)
    var sCharsReversed = Array(s)
    sCharsReversed.reverse()
    
    for i in 0..<sChars.count {
        if sChars[i] != sCharsReversed[i] {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbab") == false
func isPalindrome(s: String) -> Bool {
    var s = s
    s = s.lowercased()
    s = s.replacingOccurrences(of: " ", with: "")
    var sChars = Array(s)
    var sCharsReversed = Array(s)
    sCharsReversed.reverse()
    
    for i in 0..<sChars.count {
        if sChars[i] != sCharsReversed[i] {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbab") == false
func isPalindrome(s: String) -> Bool {
    var s = s
    s = s.lowercased()
    s = s.replacingOccurrences(of: " ", with: "")
    var sChars = Array(s)
    var sCharsReversed = Array(s)
    sCharsReversed.reverse()
    
    for i in 0..<sChars.count {
        if sChars[i] != sCharsReversed[i] {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbab") == false
func isPalindrome(s: String) -> Bool {
    var s = s
    s = s.lowercased()
    s = s.replacingOccurrences(of: " ", with: "")
    var sChars = Array(s)
    var sCharsReversed = Array(s)
    sCharsReversed.reverse()
    
    for i in 0..<sChars.count {
        if sChars[i] != sCharsReversed[i] {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbab") == false
func isPalindrome(s: String) -> Bool {
    var s = s
    s = s.lowercased()
    s = s.replacingOccurrences(of: " ", with: "")
    var sChars = Array(s)
    var sCharsReversed = Array(s)
    sCharsReversed.reverse()
    
    for i in 0..<sChars.count {
        if sChars[i] != sCharsReversed[i] {
            return false
        }
    }
    return true
}

// Check if a string is a palindrome.
// isPalindrome(s: "abccba") == true
// isPalindrome(s: "abccbab") == false
func isPalindrome(s: String) -> Bool {
    var s = s
    s = s.lowercased()
    s = s.replacingOccurrences(of: " ", with: "")
    var sChars = Array(s)
    var sCharsReversed = Array(s)
    sCharsReversed.reverse()
    
    for i in 0..<sChars.count {
        if sChars[i
var s0 = s0 // variable 's0' was never mutated; consider changing to 'let' constant
var s1 = s1 // variable 's1' was never mutated; consider changing to 'let' constant
var sChars = Array(s) // variable 'sChars' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func sameChars(s0: String, s1: String) -> Bool {
    let s0Chars = Array(s0.lowercased())
    let s1Chars = Array(s1.lowercased())
    
    if s0Chars.count != s1Chars.count {
        return false
    }
    
    var s0CharsCount = [Character: Int]()
    var s1CharsCount = [Character: Int]()
    
    for char in s0Chars {
        s0CharsCount[char] = (s0CharsCount[char] ?? 0) + 1
    }
    
    for char in s1Chars {
        s1CharsCount[char] = (s1CharsCount[char] ?? 0) + 1
    }
    
    for char in s0Chars {
        if s0CharsCount[char] != s1CharsCount[char] {
            return false
        }
    }
    
    return true
}
```swift
// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    let s0Chars = Array(s0.lowercased())
    let s1Chars = Array(s1.lowercased())
    
    if s0Chars.count != s1Chars.count {
        return false
    }
    
    var s0CharsCount = [Character: Int]()
    var s1CharsCount = [Character: Int]()
    
    for char in s0Chars {
        s0CharsCount[char] = (s0CharsCount[char] ?? 0) + 1
    }
    
    for char in s1Chars {
        s1CharsCount[char] = (s1CharsCount[char] ?? 0) + 1
    }
    
    for char in s0Chars {
        if s0CharsCount[char] != s1CharsCount[char] {
            return false
        }
    }
    
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0 {
        s0Chars.append(char)
    }
    for char in s1 {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}
```swift
// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0 {
        s0Chars.append(char)
    }
    for char in s1 {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0 {
        s0Chars.append(char)
    }
    for char in s1 {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0 {
        s0Chars.append(char)
    }
    for char in s1 {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    var s0Chars = [Character]()
    var s1Chars = [Character]()
    for char in s0 {
        s0Chars.append(char)
    }
    for char in s1 {
        s1Chars.append(char)
    }
    s0Chars.sort()
    s1Chars.sort()
    for i in 0..<s0Chars.count {
        if s0Chars[i] != s1Chars[i] {
            return false
        }
    }
    return true
}

// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz
 // XCTAssertTrue failed

func sameChars(s0: String, s1: String) -> Bool {
    let s0Chars = Array(s0)
    let s1Chars = Array(s1)
    let s0Set = Set(s0Chars)
    let s1Set = Set(s1Chars)
    return s0Set == s1Set
}
```swift
// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
    let s0Chars = Array(s0)
    let s1Chars = Array(s1)
    let s0Set = Set(s0Chars)
    let s1Set = Set(s1Chars)
    return s0Set == s1Set
}
<|file_separator|>

func sameChars(s0: String, s1: String) -> Bool {
  var s0Chars = [Character]()
  var s1Chars = [Character]()
  for char in s0 {
    s0Chars.append(char)
  }
  for char in s1 {
    s1Chars.append(char)
  }
  s0Chars.sort()
  s1Chars.sort()
  if s0Chars == s1Chars {
    return true
  } else {
    return false
  }
}
```swift
// Check if two words have the same characters.
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddeddabc") == true
// sameChars(s0: "abcd", s1: "dddddddabc") == true
// sameChars(s0: "dddddddabc", s1: "abcd") == true
// sameChars(s0: "eabcd", s1: "dddddddabc") == false
// sameChars(s0: "abcd", s1: "dddddddabce") == false
// sameChars(s0: "eabcdzzzz", s1: "dddzzzzzzzddddabc") == false
func sameChars(s0: String, s1: String) -> Bool {
  var s0Chars = [Character]()
  var s1Chars = [Character]()
  for char in s0 {
    s0Chars.append(char)
  }
  for char in s1 {
    s1Chars.append(char)
  }
  s0Chars.sort()
  s1Chars.sort()
  if s0Chars == s1Chars {
    return true
  } else {
    return false
  }
}
<|file_separator|>
 // XCTAssertTrue failed

func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    if n == 2 {
        return 1
    }
    return fib(n: n-1) + fib(n: n-2)
}
```swift
// Return n-th Fibonacci number.
// fib(n: 10) == 55
// fib(n: 1) == 1
// fib(n: 8) == 21
func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    if n == 2 {
        return 1
    }
    return fib(n: n-1) + fib(n: n-2)
}
<|file_separator|>

func fib(n: Int) -> Int {
  if n <= 1 {
    return 1
  }
  return fib(n: n - 1) + fib(n: n - 2)
}
```swift
// Return n-th Fibonacci number.
// fib(n: 10) == 55
// fib(n: 1) == 1
// fib(n: 8) == 21
func fib(n: Int) -> Int {
  if n <= 1 {
    return 1
  }
  return fib(n: n - 1) + fib(n: n - 2)
}
<|file_separator|>
 // XCTAssertTrue failed

func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    if n == 2 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}

func sum(array: [Int]) -> Int {
    if array.count == 0 {
        return 0
    }
    return array[0] + sum(array: Array(array[1...]))
}

func sum_except_3(array: [Int]) -> Int {
    if array.count == 0 {
        return 0
    }
    if array[0] == 3 {
        return sum_except_3(array: Array(array[1...]))
    }
    return array[0] + sum_except_3(array: Array(array[1...]))
}

func sum_except_3_4(array: [Int]) -> Int {
    if array.count == 0 {
        return 0
    }
    if array[0] == 3 {
        return sum_except_3_4(array: Array(array[1...]))
    }
    if array[0] == 4 {
        return sum_except_3_4(array: Array(array[1...]))
    }
    return array[0] + sum_except_3_4(array: Array(array[1...]))
}

func sum_except_3_4_5(array: [Int]) -> Int {
    if array.count == 0 {
        return 0
    }
    if array[0] == 3 {
        return sum_except_3_4_5(array: Array(array[1...]))
    }
    if array[0] == 4 {
        return sum_except_3_4_5(array: Array(array[1...]))
    }
    if array[0] == 5 {
        return sum_except_3_4_5(array: Array(array[1...]))
    }
    return array[0] + sum_except_3_4_5(array: Array(array[1...]))
}
```swift
// Return n-th Fibonacci number.
// fib(n: 10) == 55
// fib(n: 1) == 1
// fib(n: 8) == 21
func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    if n == 2 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}

// Return the sum of all numbers in an array.
// sum([1, 2, 3, 4]) == 10
// sum([1, 2, 3]) == 6
func sum(array: [Int]) -> Int {
    if array.count == 0 {
        return 0
    }
    return array[0] + sum(array: Array(array[1...]))
}

// Return the sum of all numbers in an array, except ignore any where the number is a 3.
// sum_except_3([1, 2, 3, 4]) == 10
// sum_except_3([1, 2, 3, 4, 3]) == 10
// sum_except_3([1, 2, 3, 4, 3, 3]) == 13
func sum_except_3(array: [Int]) -> Int {
    if array.count == 0 {
        return 0
    }
    if array[0] == 3 {
        return sum_except_3(array: Array(array[1...]))
    }
    return array[0] + sum_except_3(array: Array(array[1...]))
}

// Return the sum of all numbers in an array, except ignore any where the number is a 3 and also ignore any where the number is a 4.
// sum_except_3_4([1, 2, 3, 4]) == 10
// sum_except_3_4([1, 2, 3, 4, 3]) == 10
// sum_except_3_4([1, 2, 3, 4, 3, 3]) == 13
// sum_except_3_4([1, 2, 3, 4, 3, 3, 4]) == 13
func sum_except_3_4(array: [Int]) -> Int {
    if array.count == 0 {
        return 0
    }
    if array[0] == 3 {
        return sum_except_3_4(array: Array(array[1...]))
    }
    if array[0] == 4 {
        return sum_except_3_4(array: Array(array[1...]))
    }
    return array[0] + sum_except_3_4(array: Array(array[1...]))
}

// Return the sum of all numbers in an array, except ignore any where the number is a 3 and also ignore any where the number is a 4.
// sum_except_3_4_5([1, 2, 3, 4]) == 10
// sum_except_3_4_5([1, 2, 3, 4, 3]) == 10
// sum_except_3_4_5([1, 2, 3, 4, 3, 3]) == 13
// sum_except_3_4_5([1, 2, 3, 4, 3, 3, 4]) == 13
// sum_except_3_4_5([1, 2, 3, 4, 3, 3, 4, 5]) == 15
func sum_except_3_4_5(array: [Int]) -> Int {
    if array.count == 0 {
        return 0
    }
    if array[0] == 3 {
        return sum_except_3_4_5(array: Array(array[1...]))
    }
    if array[0] == 4 {
        return sum_except_3_4_5(array: Array(array[1...]))
    }
    if array[0] == 5 {
        return sum_except_3_4_5(array: Array(array[1...]))
    }
    return array[0] + sum_except_3_4_5(array: Array(array[1...]))
}

// Return the sum of all numbers in an array, except ignore any where the number is a 3

func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    } else if n == 2 {
        return 1
    } else {
        return fib(n: n - 1) + fib(n: n - 2)
    }
}

func sumOfEvens(n: Int) -> Int {
    if n == 1 {
        return 0
    } else if n % 2 == 0 {
        return n + sumOfEvens(n: n - 1)
    } else {
        return sumOfEvens(n: n - 1)
    }
}

func factorial(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n * factorial(n: n - 1)
    }
}

func sumOfArray(array: [Int]) -> Int {
    if array.count == 1 {
        return array[0]
    } else {
        return array[0] + sumOfArray(array: Array(array[1...array.count - 1]))
    }
}

func sumOfArrayExceptMultiple(array: [Int], n: Int) -> Int {
    if array.count == 1 {
        return array[0]
    } else {
        if array[0] % n == 0 {
            return sumOfArrayExceptMultiple(array: Array(array[1...array.count - 1]), n: n)
        } else {
            return array[0] + sumOfArrayExceptMultiple(array: Array(array[1...array.count - 1]), n: n)
        }
    }
}
```swift
// Return n-th Fibonacci number.
// fib(n: 10) == 55
// fib(n: 1) == 1
// fib(n: 8) == 21
func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    } else if n == 2 {
        return 1
    } else {
        return fib(n: n - 1) + fib(n: n - 2)
    }
}

// Return sum of all even numbers from 1 to n (inclusive).
// sumOfEvens(n: 10) == 30
// sumOfEvens(n: 1) == 0
// sumOfEvens(n: 2) == 2
func sumOfEvens(n: Int) -> Int {
    if n == 1 {
        return 0
    } else if n % 2 == 0 {
        return n + sumOfEvens(n: n - 1)
    } else {
        return sumOfEvens(n: n - 1)
    }
}

// Return the factorial of n.
// factorial(n: 1) == 1
// factorial(n: 2) == 2
// factorial(n: 3) == 6
// factorial(n: 4) == 24
func factorial(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n * factorial(n: n - 1)
    }
}

// Return the sum of all numbers in an array.
// sumOfArray([1, 2, 3, 4]) == 10
// sumOfArray([1, 2, 3]) == 6
// sumOfArray([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]) == 55
func sumOfArray(array: [Int]) -> Int {
    if array.count == 1 {
        return array[0]
    } else {
        return array[0] + sumOfArray(array: Array(array[1...array.count - 1]))
    }
}

// Return the sum of all numbers in an array, except ignore any where the number is a multiple of n.
// sumOfArrayExceptMultiple([1, 2, 3, 4], n: 2) == 10
// sumOfArrayExceptMultiple([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], n: 2) == 20
// sumOfArrayExceptMultiple([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], n: 3) == 15
func sumOfArrayExceptMultiple(array: [Int], n: Int) -> Int {
    if array.count == 1 {
        return array[0]
    } else {
        if array[0] % n == 0 {
            return sumOfArrayExceptMultiple(array: Array(array[1...array.count - 1]), n: n)
        } else {
            return array[0] + sumOfArrayExceptMultiple(array: Array(array[1...array.count - 1]), n: n)
        }
    }
}

// Return the sum of all numbers in an array, except ignore any where the number is a multiple of n or m.
// sumOfArrayExceptMultiple([1, 2, 3, 4], n: 2, m: 3) == 10
// sumOfArrayExceptMultiple([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], n: 2, m: 3) == 20
// sumOfArrayExceptMultiple([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], n: 2, m: 4) == 15
func sumOfArrayExceptMultiple(array: [Int], n: Int, m: Int) -> Int {
    if array.count == 1 {
        return array[0]
    } else {
        if array[0] % n == 0 || array[0] % m == 0 {
            return sumOfArrayExceptMultiple(array: Array(array[1...array.count - 1]), n: n, m: m)
        } else {
            return array[0] + sumOfArrayExcept

func fib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}
```swift
// Return n-th Fibonacci number.
// fib(n: 10) == 55
// fib(n: 1) == 1
// fib(n: 8) == 21
func fib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}
<|file_separator|>

func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    if n == 2 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}
```swift
// Return n-th Fibonacci number.
// fib(n: 10) == 55
// fib(n: 1) == 1
// fib(n: 8) == 21
func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    if n == 2 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}
<|file_separator|>

func fib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}
```swift
// Return n-th Fibonacci number.
// fib(n: 10) == 55
// fib(n: 1) == 1
// fib(n: 8) == 21
func fib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}
<|file_separator|>

func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    if n == 2 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}

func sumEvenNumbers(n: Int) -> Int {
    if n == 1 {
        return 0
    }
    if n % 2 == 0 {
        return n + sumEvenNumbers(n: n - 1)
    }
    return sumEvenNumbers(n: n - 1)
}

func factorial(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    return n * factorial(n: n - 1)
}

func sum(array: [Int]) -> Int {
    if array.count == 1 {
        return array[0]
    }
    return array[0] + sum(array: Array(array[1..<array.count]))
}

func sum(array: [Int], min: Int) -> Int {
    if array.count == 1 {
        return array[0]
    }
    if array[0] < min {
        return sum(array: Array(array[1..<array.count]), min: min)
    }
    return array[0] + sum(array: Array(array[1..<array.count]), min: min)
}
```swift
// Return n-th Fibonacci number.
// fib(n: 10) == 55
// fib(n: 1) == 1
// fib(n: 8) == 21
func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    if n == 2 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}

// Return sum of all even numbers from 1 to n (inclusive).
// sumEvenNumbers(n: 10) == 30
// sumEvenNumbers(n: 1) == 0
// sumEvenNumbers(n: 2) == 2
func sumEvenNumbers(n: Int) -> Int {
    if n == 1 {
        return 0
    }
    if n % 2 == 0 {
        return n + sumEvenNumbers(n: n - 1)
    }
    return sumEvenNumbers(n: n - 1)
}

// Return the factorial of n.
// factorial(n: 10) == 3628800
// factorial(n: 1) == 1
// factorial(n: 2) == 2
func factorial(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    return n * factorial(n: n - 1)
}

// Return the sum of all numbers in the array.
// sum(array: [1, 2, 3, 4]) == 10
// sum(array: [1, 2, 3]) == 6
func sum(array: [Int]) -> Int {
    if array.count == 1 {
        return array[0]
    }
    return array[0] + sum(array: Array(array[1..<array.count]))
}

// Return the sum of all numbers in the array, except ignore any where the value is less than min.
// sum(array: [1, 2, 3, 4], min: 3) == 10
// sum(array: [1, 2, 3, 4], min: 5) == 10
// sum(array: [1, 2, 3, 4], min: 1) == 10
func sum(array: [Int], min: Int) -> Int {
    if array.count == 1 {
        return array[0]
    }
    if array[0] < min {
        return sum(array: Array(array[1..<array.count]), min: min)
    }
    return array[0] + sum(array: Array(array[1..<array.count]), min: min)
}

// Return the sum of all numbers in the array, except ignore any where the value is less than min.
// sum(array: [1, 2, 3, 4], min: 3) == 10
// sum(array: [1, 2, 3, 4], min: 5) == 10
// sum(array: [1, 2, 3, 4], min: 1) == 10
func sum(array: [Int], min: Int) -> Int {
    if array.count == 1 {
        return array[0]
    }
    if array[0] < min {
        return sum(array: Array(array[1..<array.count]), min: min)
    }
    return array[0] + sum(array: Array(array[1..<array.count]), min: min)
}

// Return the sum of all numbers in the array, except ignore any where the value is less than min.
// sum(array: [1, 2, 3, 4], min: 3) == 10
// sum(array: [1, 2, 3, 4], min: 5) == 10
// sum(array: [1, 2, 3, 4], min: 1) == 10
func sum(array: [Int], min: Int) -> Int {
    if array.count == 1 {
        return array[0]
    }
    if array[0] < min {
        return sum(array: Array(array[1..<array.count]), min: min)
    }
    return array[0] + sum(array: Array(array[1..<array.count]), min: min)
}

// Return the sum of all numbers in the array, except ignore any where the value is less than min.
//

func fib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}
```swift
// Return n-th Fibonacci number.
// fib(n: 10) == 55
// fib(n: 1) == 1
// fib(n: 8) == 21
func fib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}
<|file_separator|>

func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    if n == 2 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}
```swift
// Return n-th Fibonacci number.
// fib(n: 10) == 55
// fib(n: 1) == 1
// fib(n: 8) == 21
func fib(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    if n == 2 {
        return 1
    }
    return fib(n: n - 1) + fib(n: n - 2)
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "<") == false
// correctBracketing(brackets: "<>") == true
// correctBracketing(brackets: "<<><>>") == true
// correctBracketing(brackets: "><<>") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "<") == false
// correctBracketing(brackets: "<>") == true
// correctBracketing(brackets: "<<><>>") == true
// correctBracketing(brackets: "><<>") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else if bracket == ">" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "<") == false
// correctBracketing(brackets: "<>") == true
// correctBracketing(brackets: "<<><>>") == true
// correctBracketing(brackets: "><<>") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else if bracket == ">" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "<") == false
// correctBracketing(brackets: "<>") == true
// correctBracketing(brackets: "<<><>>") == true
// correctBracketing(brackets: "><<>") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else if bracket == ">" {
            if stack.isEmpty {
                return false
            } else {
                stack.removeLast()
            }
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "<") == false
// correctBracketing(brackets: "<>") == true
// correctBracketing(brackets: "<<><>>") == true
// correctBracketing(brackets: "><<>") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else if bracket == ">" {
            if stack.isEmpty {
                return false
            } else {
                stack.removeLast()
            }
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else if bracket == ">" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "<") == false
// correctBracketing(brackets: "<>") == true
// correctBracketing(brackets: "<<><>>") == true
// correctBracketing(brackets: "><<>") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else if bracket == ">" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            } else {
                stack.removeLast()
            }
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "<") == false
// correctBracketing(brackets: "<>") == true
// correctBracketing(brackets: "<<><>>") == true
// correctBracketing(brackets: "><<>") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            } else {
                stack.removeLast()
            }
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "<") == false
// correctBracketing(brackets: "<>") == true
// correctBracketing(brackets: "<<><>>") == true
// correctBracketing(brackets: "><<>") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else if bracket == ">" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "<") == false
// correctBracketing(brackets: "<>") == true
// correctBracketing(brackets: "<<><>>") == true
// correctBracketing(brackets: "><<>") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else if bracket == ">" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}

correctBracketing(brackets: "<") == false
correctBracketing(brackets: "<>") == true
correctBracketing(brackets: "<<><>>") == true
correctBracketing(brackets: "><<>") == false
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "<" and ">".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "<") == false
// correctBracketing(brackets: "<>") == true
// correctBracketing(brackets: "<<><>>") == true
// correctBracketing(brackets: "><<>") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "<" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    if isMonotonic {
        return true
    }
    isMonotonic = true
    prev = l[0]
    for i in 1..<l.count {
        if l[i] > prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    return isMonotonic
}
```swift
// Return true is array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    if isMonotonic {
        return true
    }
    isMonotonic = true
    prev = l[0]
    for i in 1..<l.count {
        if l[i] > prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    return isMonotonic
}
<|file_separator|>

func monotonic(l: [Int]) -> Bool {
    var increasing = true
    var decreasing = true
    for i in 1..<l.count {
        if l[i] > l[i-1] {
            increasing = false
        }
        if l[i] < l[i-1] {
            decreasing = false
        }
    }
    return increasing || decreasing
}
```swift
// Return true is array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var increasing = true
    var decreasing = true
    for i in 1..<l.count {
        if l[i] > l[i-1] {
            increasing = false
        }
        if l[i] < l[i-1] {
            decreasing = false
        }
    }
    return increasing || decreasing
}

// Return true if array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var increasing = true
    var decreasing = true
    for i in 1..<l.count {
        if l[i] > l[i-1] {
            increasing = false
        }
        if l[i] < l[i-1] {
            decreasing = false
        }
    }
    return increasing || decreasing
}

// Return true if array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var increasing = true
    var decreasing = true
    for i in 1..<l.count {
        if l[i] > l[i-1] {
            increasing = false
        }
        if l[i] < l[i-1] {
            decreasing = false
        }
    }
    return increasing || decreasing
}

// Return true if array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var increasing = true
    var decreasing = true
    for i in 1..<l.count {
        if l[i] > l[i-1] {
            increasing = false
        }
        if l[i] < l[i-1] {
            decreasing = false
        }
    }
    return increasing || decreasing
}

// Return true if array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var increasing = true
    var decreasing = true
    for i in 1..<l.count {
        if l[i] > l[i-1] {
            increasing = false
        }
        if l[i] < l[i-1] {
            decreasing = false
        }
    }
    return increasing || decreasing
}

// Return true if array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var increasing = true
    var decreasing = true
    for i in 1..<l.count {
        if l[i] > l[i-1] {
            increasing = false
        }
        if l[i] < l[i-1] {
            decreasing = false
        }
    }
    return increasing || decreasing
}

// Return true if array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) ->

func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var isDecreasing = false
    var isIncreasing = false
    
    for i in 1..<l.count {
        if l[i] < l[i - 1] {
            isDecreasing = true
        } else if l[i] > l[i - 1] {
            isIncreasing = true
        }
        
        if isDecreasing && isIncreasing {
            isMonotonic = false
            break
        }
    }
    
    return isMonotonic
}
```swift
// Return true is array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var isDecreasing = false
    var isIncreasing = false
    
    for i in 1..<l.count {
        if l[i] < l[i - 1] {
            isDecreasing = true
        } else if l[i] > l[i - 1] {
            isIncreasing = true
        }
        
        if isDecreasing && isIncreasing {
            isMonotonic = false
            break
        }
    }
    
    return isMonotonic
}

monotonic(l: [1, 2, 4, 20]) == true
monotonic(l: [1, 20, 4, 10]) == false
monotonic(l: [4, 1, 0, -10]) == true
<|file_separator|>

func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    if isMonotonic {
        return true
    }
    isMonotonic = true
    prev = l[0]
    for i in 1..<l.count {
        if l[i] > prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    return isMonotonic
}
```swift
// Return true is array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    if isMonotonic {
        return true
    }
    isMonotonic = true
    prev = l[0]
    for i in 1..<l.count {
        if l[i] > prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    return isMonotonic
}
<|file_separator|>

func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var isDecreasing = false
    var isIncreasing = false
    
    for i in 0..<l.count - 1 {
        if l[i] < l[i + 1] {
            isDecreasing = true
        } else if l[i] > l[i + 1] {
            isIncreasing = true
        }
        
        if isDecreasing && isIncreasing {
            isMonotonic = false
            break
        }
    }
    
    return isMonotonic
}
```swift
// Return true is array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var isDecreasing = false
    var isIncreasing = false
    
    for i in 0..<l.count - 1 {
        if l[i] < l[i + 1] {
            isDecreasing = true
        } else if l[i] > l[i + 1] {
            isIncreasing = true
        }
        
        if isDecreasing && isIncreasing {
            isMonotonic = false
            break
        }
    }
    
    return isMonotonic
}
<|file_separator|>

func monotonic(l: [Int]) -> Bool {
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            return false
        }
        prev = l[i]
    }
    return true
}
```swift
// Return true is array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            return false
        }
        prev = l[i]
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    if isMonotonic {
        return true
    }
    isMonotonic = true
    prev = l[0]
    for i in 1..<l.count {
        if l[i] > prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    return isMonotonic
}
```swift
// Return true is array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    if isMonotonic {
        return true
    }
    isMonotonic = true
    prev = l[0]
    for i in 1..<l.count {
        if l[i] > prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    return isMonotonic
}
<|file_separator|>

func monotonic(l: [Int]) -> Bool {
    var isIncreasing = true
    var isDecreasing = true
    
    for i in 0..<l.count-1 {
        if l[i] > l[i+1] {
            isIncreasing = false
        }
        if l[i] < l[i+1] {
            isDecreasing = false
        }
    }
    
    return isIncreasing || isDecreasing
}
```swift
// Return true is array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var isIncreasing = true
    var isDecreasing = true
    
    for i in 0..<l.count-1 {
        if l[i] > l[i+1] {
            isIncreasing = false
        }
        if l[i] < l[i+1] {
            isDecreasing = false
        }
    }
    
    return isIncreasing || isDecreasing
}
<|file_separator|>

func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] > prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    if isMonotonic {
        return true
    }
    isMonotonic = true
    prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    return isMonotonic
}
```swift
// Return true is array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] > prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    if isMonotonic {
        return true
    }
    isMonotonic = true
    prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    return isMonotonic
}
<|file_separator|>```

func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    if isMonotonic {
        return true
    }
    isMonotonic = true
    prev = l[0]
    for i in 1..<l.count {
        if l[i] > prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    return isMonotonic
}
```swift
// Return true is array elements are monotonically increasing or decreasing.
// monotonic(l: [1, 2, 4, 20]) == true
// monotonic(l: [1, 20, 4, 10]) == false
// monotonic(l: [4, 1, 0, -10]) == true
func monotonic(l: [Int]) -> Bool {
    var isMonotonic = true
    var prev = l[0]
    for i in 1..<l.count {
        if l[i] < prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    if isMonotonic {
        return true
    }
    isMonotonic = true
    prev = l[0]
    for i in 1..<l.count {
        if l[i] > prev {
            isMonotonic = false
            break
        }
        prev = l[i]
    }
    return isMonotonic
}
<|file_separator|>

func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1[0] == l2[0] {
            result.append(l1[0])
            l1.removeFirst()
            l2.removeFirst()
        } else if l1[0] < l2[0] {
            l1.removeFirst()
        } else {
            l2.removeFirst()
        }
    }
    
    return result
}
```swift
// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1[0] == l2[0] {
            result.append(l1[0])
            l1.removeFirst()
            l2.removeFirst()
        } else if l1[0] < l2[0] {
            l1.removeFirst()
        } else {
            l2.removeFirst()
        }
    }
    
    return result
}
<|file_separator|>```
 // XCTAssertTrue failed

func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.removeFirst())
            l2.removeFirst()
        }
    }
    
    return result
}
```swift
// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.removeFirst())
            l2.removeFirst()
        }
    }
    
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.removeFirst())
            l2.removeFirst()
        }
    }
    return result
}
```swift
// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.removeFirst())
            l2.removeFirst()
        }
    }
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.removeFirst())
            l2.removeFirst()
        }
    }
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.removeFirst())
            l2.removeFirst()
        }
    }
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.removeFirst())
            l2.removeFirst()
        }
    }
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2,
 // XCTAssertTrue failed

func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.removeFirst())
            l2.removeFirst()
        }
    }
    return result
}
```swift
// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.removeFirst())
            l2.removeFirst()
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func common(l1: [Int], l2: [Int]) -> [Int] {
  var result = [Int]()
  var l1 = l1
  var l2 = l2
  while !l1.isEmpty && !l2.isEmpty {
    if l1.first! < l2.first! {
      l1.removeFirst()
    } else if l1.first! > l2.first! {
      l2.removeFirst()
    } else {
      result.append(l1.removeFirst())
      l2.removeFirst()
    }
  }
  return result
}
```swift
// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
  var result = [Int]()
  var l1 = l1
  var l2 = l2
  while !l1.isEmpty && !l2.isEmpty {
    if l1.first! < l2.first! {
      l1.removeFirst()
    } else if l1.first! > l2.first! {
      l2.removeFirst()
    } else {
      result.append(l1.removeFirst())
      l2.removeFirst()
    }
  }
  return result
}
<|file_separator|>
 // XCTAssertTrue failed

func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1[0] < l2[0] {
            l1.removeFirst()
        } else if l1[0] > l2[0] {
            l2.removeFirst()
        } else {
            result.append(l1[0])
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}
```swift
// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1[0] < l2[0] {
            l1.removeFirst()
        } else if l1[0] > l2[0] {
            l2.removeFirst()
        } else {
            result.append(l1[0])
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121])
common(l1: [5, 3, 2, 8], l2: [3, 2])
<|file_separator|>
 // XCTAssertTrue failed

func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

func common2(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

func common3(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

func common4(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}
```swift
// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common2(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common3(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common4(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while l1.count > 0 && l2.count > 0 {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7,
 // XCTAssertTrue failed

func common(l1: [Int], l2: [Int]) -> [Int] {
  var l1 = l1
  var l2 = l2
  var result = [Int]()

  l1.sort()
  l2.sort()

  var i = 0
  var j = 0

  while i < l1.count && j < l2.count {
    if l1[i] == l2[j] {
      result.append(l1[i])
      i += 1
      j += 1
    } else if l1[i] < l2[j] {
      i += 1
    } else {
      j += 1
    }
  }

  return result
}
```swift
// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
  var l1 = l1
  var l2 = l2
  var result = [Int]()

  l1.sort()
  l2.sort()

  var i = 0
  var j = 0

  while i < l1.count && j < l2.count {
    if l1[i] == l2[j] {
      result.append(l1[i])
      i += 1
      j += 1
    } else if l1[i] < l2[j] {
      i += 1
    } else {
      j += 1
    }
  }

  return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
  var l1 = l1
  var l2 = l2
  var result = [Int]()

  l1.sort()
  l2.sort()

  var i = 0
  var j = 0

  while i < l1.count && j < l2.count {
    if l1[i] == l2[j] {
      result.append(l1[i])
      i += 1
      j += 1
    } else if l1[i] < l2[j] {
      i += 1
    } else {
      j += 1
    }
  }

  return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
  var l1 = l1
  var l2 = l2
  var result = [Int]()

  l1.sort()
  l2.sort()

  var i = 0
  var j = 0

  while i < l1.count && j < l2.count {
    if l1[i] == l2[j] {
      result.append(l1[i])
      i += 1
      j += 1
    } else if l1[i] < l2[j] {
      i += 1
    } else {
      j += 1
    }
  }

  return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
  var l1 = l1
  var l2 = l2
  var result = [Int]()

  l1.sort()
  l2.sort()

  var i = 0
  var j = 0

  while i < l1.count && j < l2.count {
    if l1[i] == l2[j] {
      result.append(l1[i])
      i += 1
      j += 1
    } else if l1[i] < l2[j] {
      i += 1
    } else {
      j += 1
    }
  }

  return result

func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.removeFirst())
            l2.removeFirst()
        }
    }
    return result
}

func common2(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    var i = 0
    var j = 0
    while i < l1.count && j < l2.count {
        if l1[i] < l2[j] {
            i += 1
        } else if l1[i] > l2[j] {
            j += 1
        } else {
            result.append(l1[i])
            i += 1
            j += 1
        }
    }
    return result
}

func common3(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    var i = 0
    var j = 0
    while i < l1.count && j < l2.count {
        if l1[i] < l2[j] {
            i += 1
        } else if l1[i] > l2[j] {
            j += 1
        } else {
            result.append(l1[i])
            i += 1
            j += 1
        }
    }
    return result
}

func common4(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    var i = 0
    var j = 0
    while i < l1.count && j < l2.count {
        if l1[i] < l2[j] {
            i += 1
        } else if l1[i] > l2[j] {
            j += 1
        } else {
            result.append(l1[i])
            i += 1
            j += 1
        }
    }
    return result
}
```swift
// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.removeFirst())
            l2.removeFirst()
        }
    }
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common2(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    var i = 0
    var j = 0
    while i < l1.count && j < l2.count {
        if l1[i] < l2[j] {
            i += 1
        } else if l1[i] > l2[j] {
            j += 1
        } else {
            result.append(l1[i])
            i += 1
            j += 1
        }
    }
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common3(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    var i = 0
    var j = 0
    while i < l1.count && j < l2.count {
        if l1[i] < l2[j] {
            i += 1
        } else if l1[i] > l2[j] {
            j += 1
        } else {
            result.append(l1[i])
            i += 1
            j += 1
        }
    }
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common4(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    var i = 0
    var j = 0
    while i < l1.count && j < l2.count {
        if l1[i] < l2[j] {
            i += 1
        } else if l1[i] > l2[j] {
            j += 1
        } else {
            result.append(l1[i])
            i += 1
            j += 1
        }
    }
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 
var l1 = l1 // variable 'l1' was never mutated; consider changing to 'let' constant
var l2 = l2 // variable 'l2' was never mutated; consider changing to 'let' constant
var l1 = l1 // variable 'l1' was never mutated; consider changing to 'let' constant
var l2 = l2 // variable 'l2' was never mutated; consider changing to 'let' constant
var l1 = l1 // variable 'l1' was never mutated; consider changing to 'let' constant
var l2 = l2 // variable 'l2' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

func common2(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

func common3(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

func common4(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}
```swift
// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common2(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common3(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 121]) == [1, 5, 653]
// common(l1: [5, 3, 2, 8], l2: [3, 2]) == [2, 3]
func common4(l1: [Int], l2: [Int]) -> [Int] {
    var result = [Int]()
    var l1 = l1
    var l2 = l2
    
    while !l1.isEmpty && !l2.isEmpty {
        if l1.first! < l2.first! {
            l1.removeFirst()
        } else if l1.first! > l2.first! {
            l2.removeFirst()
        } else {
            result.append(l1.first!)
            l1.removeFirst()
            l2.removeFirst()
        }
    }
    
    return result
}

// Return sorted unique common elements for two arrays.
// common(l1: [1, 4, 3, 34, 653, 2, 5], l2: [5, 7, 1, 5, 9, 653, 1
 // XCTAssertTrue failed

func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largest = 0
    while n % 2 == 0 {
        largest = 2
        n /= 2
    }
    for i in 3...n {
        while n % i == 0 {
            largest = i
            n /= i
        }
    }
    return largest
}

func sumOfPrimes(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if isPrime(i) {
            sum += i
        }
    }
    return sum
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2...Int(sqrt(Double(n))) {
        if n % i == 0 {
            return false
        }
    }
    return true
}

func fibonacci(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 1
    }
    var a = 0
    var b = 1
    for _ in 2...n {
        let c = a + b
        a = b
        b = c
    }
    return b
}
```swift
// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largest = 0
    while n % 2 == 0 {
        largest = 2
        n /= 2
    }
    for i in 3...n {
        while n % i == 0 {
            largest = i
            n /= i
        }
    }
    return largest
}

// Return the sum of all the prime numbers up to and including n.
// sumOfPrimes(n: 10) == 17
// sumOfPrimes(n: 20) == 17
func sumOfPrimes(n: Int) -> Int {
    var sum = 0
    for i in 2...n {
        if isPrime(i) {
            sum += i
        }
    }
    return sum
}

// Return true if n is a prime number.
// isPrime(n: 13195) == true
// isPrime(n: 2048) == false
func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2...Int(sqrt(Double(n))) {
        if n % i == 0 {
            return false
        }
    }
    return true
}

// Return the nth Fibonacci number.
// fibonacci(n: 0) == 0
// fibonacci(n: 1) == 1
// fibonacci(n: 2) == 1
// fibonacci(n: 3) == 2
// fibonacci(n: 4) == 3
// fibonacci(n: 5) == 5
// fibonacci(n: 6) == 8
// fibonacci(n: 7) == 13
// fibonacci(n: 8) == 21
// fibonacci(n: 9) == 34
// fibonacci(n: 10) == 55
func fibonacci(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 1
    }
    var a = 0
    var b = 1
    for _ in 2...n {
        let c = a + b
        a = b
        b = c
    }
    return b
}

// Return the nth Fibonacci number.
// fibonacci(n: 0) == 0
// fibonacci(n: 1) == 1
// fibonacci(n: 2) == 1
// fibonacci(n: 3) == 2
// fibonacci(n: 4) == 3
// fibonacci(n: 5) == 5
// fibonacci(n: 6) == 8
// fibonacci(n: 7) == 13
// fibonacci(n: 8) == 21
// fibonacci(n: 9) == 34
// fibonacci(n: 10) == 55
func fibonacci(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 1
    }
    var a = 0
    var b = 1
    for _ in 2...n {
        let c = a + b
        a = b
        b = c
    }
    return b
}

// Return the nth Fibonacci number.
// fibonacci(n: 0) == 0
// fibonacci(n: 1) == 1
// fibonacci(n: 2) == 1
// fibonacci(n: 3) == 2
// fibonacci(n: 4) == 3
// fibonacci(n: 5) == 5
// fibonacci(n: 6) == 8
// fibonacci(n: 7) == 13
// fibonacci(n: 8) == 21
// fibonacci(n: 9) == 34
// fibonacci(n: 10) == 55
func fibonacci(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 1
    }
    var a = 0
    var b = 1
    for _ in 2...n {
        let c = a + b
        a = b
        b = c
    }
    return b
}

// Return the nth Fibonacci number.
//
if isPrime(i) { // missing argument label 'n:' in call

func largestPrimeFactor(n: Int) -> Int {
  var n = n
  var largestPrimeFactor = 1
  while n % 2 == 0 {
    largestPrimeFactor = 2
    n /= 2
  }
  for i in 3...n {
    while n % i == 0 {
      largestPrimeFactor = i
      n /= i
    }
  }
  return largestPrimeFactor
}
```swift
// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
  var n = n
  var largestPrimeFactor = 1
  while n % 2 == 0 {
    largestPrimeFactor = 2
    n /= 2
  }
  for i in 3...n {
    while n % i == 0 {
      largestPrimeFactor = i
      n /= i
    }
  }
  return largestPrimeFactor
}
<|file_separator|>

func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largestPrimeFactor = 1
    while n % 2 == 0 {
        largestPrimeFactor = 2
        n /= 2
    }
    for i in 3...n {
        while n % i == 0 {
            largestPrimeFactor = i
            n /= i
        }
    }
    return largestPrimeFactor
}
```swift
// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largestPrimeFactor = 1
    while n % 2 == 0 {
        largestPrimeFactor = 2
        n /= 2
    }
    for i in 3...n {
        while n % i == 0 {
            largestPrimeFactor = i
            n /= i
        }
    }
    return largestPrimeFactor
}
<|file_separator|>

func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largestPrimeFactor = 1
    var i = 2
    while i <= n {
        if n % i == 0 {
            largestPrimeFactor = i
            n = n / i
        } else {
            i += 1
        }
    }
    return largestPrimeFactor
}

func countPrimes(n: Int) -> Int {
    var count = 0
    for i in 2...n {
        if isPrime(i) {
            count += 1
        }
    }
    return count
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    if n <= 3 {
        return true
    }
    if n % 2 == 0 || n % 3 == 0 {
        return false
    }
    var i = 5
    while i * i <= n {
        if n % i == 0 || n % (i + 2) == 0 {
            return false
        }
        i += 6
    }
    return true
}

func sumDigits(n: Int) -> Int {
    var sum = 0
    var num = n
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return sum
}

func sumOfDigitsFactorial(n: Int) -> Int {
    var sum = 0
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    var num = factorial
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return sum
}
```swift
// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largestPrimeFactor = 1
    var i = 2
    while i <= n {
        if n % i == 0 {
            largestPrimeFactor = i
            n = n / i
        } else {
            i += 1
        }
    }
    return largestPrimeFactor
}

// Return the number of prime numbers less than or equal to n.
// countPrimes(n: 10) == 4
// countPrimes(n: 100) == 25
func countPrimes(n: Int) -> Int {
    var count = 0
    for i in 2...n {
        if isPrime(i) {
            count += 1
        }
    }
    return count
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    if n <= 3 {
        return true
    }
    if n % 2 == 0 || n % 3 == 0 {
        return false
    }
    var i = 5
    while i * i <= n {
        if n % i == 0 || n % (i + 2) == 0 {
            return false
        }
        i += 6
    }
    return true
}

// Return the sum of the digits of n. Assume n is a positive integer.
// sumDigits(n: 12345) == 15
// sumDigits(n: 99999) == 45
func sumDigits(n: Int) -> Int {
    var sum = 0
    var num = n
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return sum
}

// Return the sum of the digits of the factorial of n. Assume n is a positive integer.
// sumOfDigitsFactorial(n: 12345) == 15
// sumOfDigitsFactorial(n: 99999) == 45
func sumOfDigitsFactorial(n: Int) -> Int {
    var sum = 0
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    var num = factorial
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return sum
}

// Return the sum of the digits of the factorial of n. Assume n is a positive integer.
// sumOfDigitsFactorial(n: 12345) == 15
// sumOfDigitsFactorial(n: 99999) == 45
func sumOfDigitsFactorial(n: Int) -> Int {
    var sum = 0
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    var num = factorial
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return sum
}

// Return the sum of the digits of the factorial of n. Assume n is a positive integer.
// sumOfDigitsFactorial(n: 12345) == 15
// sumOfDigitsFactorial(n: 99999) == 45
func sumOfDigitsFactorial(n: Int) -> Int {
    var sum = 0
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    var num = factorial
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return sum
}

// Return the sum of the digits of the factorial of n. Assume n is a positive integer.
// sumOfDigitsFactorial(n: 12345) == 15
// sumOfDigitsFactorial(n: 99999) == 45
func sumOfDigitsFactorial(n: Int) -> Int {
    var sum = 0
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    var num = factorial
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return sum
}

// Return the sum of the digits of
if isPrime(i) { // missing argument label 'n:' in call

func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largest = 1
    while n % 2 == 0 {
        largest = 2
        n /= 2
    }
    for i in 3...Int(sqrt(Double(n))) {
        while n % i == 0 {
            largest = i
            n /= i
        }
    }
    if n > 2 {
        largest = n
    }
    return largest
}

func fibonacci(n: Int) -> Int {
    var a = 0
    var b = 1
    for _ in 0..<n {
        let c = a + b
        a = b
        b = c
    }
    return a
}

func sumDigits(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

func sumDigitsReversed(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum = sum * 10 + n % 10
        n /= 10
    }
    return sum
}

func sumDigitsReversed2(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

func sumDigitsReversed3(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum = sum * 10 + n % 10
        n /= 10
    }
    return sum
}

func sumDigitsReversed4(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum = sum * 10 + n % 10
        n /= 10
    }
    return sum
}
```swift
// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largest = 1
    while n % 2 == 0 {
        largest = 2
        n /= 2
    }
    for i in 3...Int(sqrt(Double(n))) {
        while n % i == 0 {
            largest = i
            n /= i
        }
    }
    if n > 2 {
        largest = n
    }
    return largest
}

// Return the nth Fibonacci number.
// fibonacci(n: 0) == 0
// fibonacci(n: 1) == 1
// fibonacci(n: 2) == 1
// fibonacci(n: 3) == 2
// fibonacci(n: 4) == 3
// fibonacci(n: 5) == 5
// fibonacci(n: 6) == 8
// fibonacci(n: 7) == 13
func fibonacci(n: Int) -> Int {
    var a = 0
    var b = 1
    for _ in 0..<n {
        let c = a + b
        a = b
        b = c
    }
    return a
}

// Return the sum of the digits of n.
// sumDigits(n: 12345) == 15
// sumDigits(n: 123456789) == 45
func sumDigits(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

// Return the sum of the digits of n, starting from the right.
// sumDigitsReversed(n: 12345) == 54321
// sumDigitsReversed(n: 123456789) == 987654321
func sumDigitsReversed(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum = sum * 10 + n % 10
        n /= 10
    }
    return sum
}

// Return the sum of the digits of n, starting from the left.
// sumDigitsReversed(n: 12345) == 54321
// sumDigitsReversed(n: 123456789) == 987654321
func sumDigitsReversed2(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

// Return the sum of the digits of n, starting from the left.
// sumDigitsReversed(n: 12345) == 54321
// sumDigitsReversed(n: 123456789) == 987654321
func sumDigitsReversed3(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum = sum * 10 + n % 10
        n /= 10
    }
    return sum
}

// Return the sum of the digits of n, starting from the left.
// sumDigitsReversed(n: 12345) == 54321
// sumDigitsReversed(n: 123456789) == 987654321
func sumDigitsReversed4(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum = sum * 10 + n % 10
        n /= 10
    }
    return sum
}

// Return the sum of the digits of n, starting from the left.
// sumDigitsReversed(n: 12345) == 54321
// sumDigitsReversed(n: 123456789) == 987654321
func sumDigitsReversed5(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum = sum * 10 + n %

func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largestPrimeFactor = 2
    while n > 1 {
        if n % largestPrimeFactor == 0 {
            n /= largestPrimeFactor
        } else {
            largestPrimeFactor += 1
        }
    }
    return largestPrimeFactor
}

func sumOfDigits(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n /= 5
        count += n
    }
    return count
}

func numberOfDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n /= 10
        count += 1
    }
    return count
}

func factorialDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n *= (n - 1)
        count += 1
    }
    return count
}

func binaryDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 2
        count += 1
    }
    return count
}

func hexadecimalDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 16
        count += 1
    }
    return count
}

func octalDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 8
        count += 1
    }
    return count
}
```swift
// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largestPrimeFactor = 2
    while n > 1 {
        if n % largestPrimeFactor == 0 {
            n /= largestPrimeFactor
        } else {
            largestPrimeFactor += 1
        }
    }
    return largestPrimeFactor
}

// Return the sum of the digits of n. Assume n is a positive integer.
// sumOfDigits(n: 1234) == 10
// sumOfDigits(n: 9999) == 36
func sumOfDigits(n: Int) -> Int {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return sum
}

// Return the number of trailing zeros in n!. Assume n is a positive integer.
// trailingZeros(n: 10) == 1
// trailingZeros(n: 100) == 2
func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n /= 5
        count += n
    }
    return count
}

// Return the number of digits in n. Assume n is a positive integer.
// numberOfDigits(n: 1234) == 4
// numberOfDigits(n: 9999) == 4
func numberOfDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n /= 10
        count += 1
    }
    return count
}

// Return the number of digits in n! (the factorial of n). Assume n is a positive integer.
// factorialDigits(n: 10) == 2
// factorialDigits(n: 100) == 4
func factorialDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n *= (n - 1)
        count += 1
    }
    return count
}

// Return the number of digits in the binary representation of n. Assume n is a positive integer.
// binaryDigits(n: 1234) == 4
// binaryDigits(n: 9999) == 5
func binaryDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 2
        count += 1
    }
    return count
}

// Return the number of digits in the hexadecimal representation of n. Assume n is a positive integer.
// hexadecimalDigits(n: 1234) == 4
// hexadecimalDigits(n: 9999) == 5
func hexadecimalDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 16
        count += 1
    }
    return count
}

// Return the number of digits in the octal representation of n. Assume n is a positive integer.
// octalDigits(n: 1234) == 4
// octalDigits(n: 9999) == 5
func octalDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 8
        count += 1
    }
    return count
}

// Return the number of digits in the binary representation of n. Assume n is a positive integer.
// binaryDigits(n: 1234) == 4
// binaryDigits(n: 9999) == 5
func binaryDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {
        n = n / 2
        count += 1
    }
    return count
}

// Return the number of digits in the hexadecimal representation of n. Assume n is a positive integer.
// hexadecimalDigits(n: 1234) == 4
// hexadecimalDigits(n: 9999) == 5
func hexadecimalDigits(n: Int) -> Int {
    var n = n
    var count = 0
    while n > 0 {

func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largestPrimeFactor = 1
    
    while n % 2 == 0 {
        largestPrimeFactor = 2
        n /= 2
    }
    
    for i in 3...Int(sqrt(Double(n))) {
        while n % i == 0 {
            largestPrimeFactor = i
            n /= i
        }
    }
    
    if n > 2 {
        largestPrimeFactor = n
    }
    
    return largestPrimeFactor
}

func sumOfDigits(n: Int) -> Int {
    var n = n
    var sum = 0
    
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    
    return sum
}

func countDigits(n: Int) -> Int {
    var n = n
    var count = 0
    
    while n > 0 {
        n /= 10
        count += 1
    }
    
    return count
}

func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    
    while n >= 5 {
        count += n / 5
        n /= 5
    }
    
    return count
}

func countBits(n: Int) -> Int {
    var n = n
    var count = 0
    
    while n > 0 {
        count += n & 1
        n >>= 1
    }
    
    return count
}
```swift
// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largestPrimeFactor = 1
    
    while n % 2 == 0 {
        largestPrimeFactor = 2
        n /= 2
    }
    
    for i in 3...Int(sqrt(Double(n))) {
        while n % i == 0 {
            largestPrimeFactor = i
            n /= i
        }
    }
    
    if n > 2 {
        largestPrimeFactor = n
    }
    
    return largestPrimeFactor
}

// Return the sum of the digits in n. Assume n is a positive integer.
// sumOfDigits(n: 12345) == 15
// sumOfDigits(n: 123456789) == 45
func sumOfDigits(n: Int) -> Int {
    var n = n
    var sum = 0
    
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    
    return sum
}

// Return the number of digits in n. Assume n is a positive integer.
// countDigits(n: 12345) == 5
// countDigits(n: 123456789) == 9
func countDigits(n: Int) -> Int {
    var n = n
    var count = 0
    
    while n > 0 {
        n /= 10
        count += 1
    }
    
    return count
}

// Return the number of trailing zeros in n!. Assume n is a positive integer.
// trailingZeros(n: 10) == 1
// trailingZeros(n: 100) == 2
// trailingZeros(n: 1000) == 3
func trailingZeros(n: Int) -> Int {
    var n = n
    var count = 0
    
    while n >= 5 {
        count += n / 5
        n /= 5
    }
    
    return count
}

// Return the number of digits in the binary representation of n. Assume n is a positive integer.
// countBits(n: 12345) == 5
// countBits(n: 123456789) == 13
func countBits(n: Int) -> Int {
    var n = n
    var count = 0
    
    while n > 0 {
        count += n & 1
        n >>= 1
    }
    
    return count
}

// Return the number of digits in the binary representation of n. Assume n is a positive integer.
// countBits(n: 12345) == 5
// countBits(n: 123456789) == 13
func countBits(n: Int) -> Int {
    var n = n
    var count = 0
    
    while n > 0 {
        count += n & 1
        n >>= 1
    }
    
    return count
}

// Return the number of digits in the binary representation of n. Assume n is a positive integer.
// countBits(n: 12345) == 5
// countBits(n: 123456789) == 13
func countBits(n: Int) -> Int {
    var n = n
    var count = 0
    
    while n > 0 {
        count += n & 1
        n >>= 1
    }
    
    return count
}

// Return the number of digits in the binary representation of n. Assume n is a positive integer.
// countBits(n: 12345) == 5
// countBits(n: 123456789) == 13
func countBits(n: Int) -> Int {
    var n = n
    var count = 0
    
    while n > 0 {
        count += n & 1
        n >>= 1
    }
    
    return count
}

// Return the number of digits in the binary representation of n. Assume n is a positive integer.
// countBits(n: 12345) == 5
// countBits(n: 123456789) == 13
func

func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var factor = 2
    while factor * factor <= n {
        if n % factor == 0 {
            n /= factor
        } else {
            factor += 1
        }
    }
    return n
}
```swift
// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var factor = 2
    while factor * factor <= n {
        if n % factor == 0 {
            n /= factor
        } else {
            factor += 1
        }
    }
    return n
}

// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var factor = 2
    while factor * factor <= n {
        if n % factor == 0 {
            n /= factor
        } else {
            factor += 1
        }
    }
    return n
}

// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var factor = 2
    while factor * factor <= n {
        if n % factor == 0 {
            n /= factor
        } else {
            factor += 1
        }
    }
    return n
}

// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var factor = 2
    while factor * factor <= n {
        if n % factor == 0 {
            n /= factor
        } else {
            factor += 1
        }
    }
    return n
}

// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var factor = 2
    while factor * factor <= n {
        if n % factor == 0 {
            n /= factor
        } else {
            factor += 1
        }
    }
    return n
}

// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var factor = 2
    while factor * factor <= n {
        if n % factor == 0 {
            n /= factor
        } else {
            factor += 1
        }
    }
    return n
}

// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var factor = 2
    while factor * factor <= n {
        if n % factor == 0 {
            n /= factor
        } else {
            factor += 1
        }
    }
    return n
}

// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var factor = 2
    while factor * factor <= n {
        if n % factor == 0 {
            n /= factor
        } else {
            factor += 1
        }
    }
    return n
}

// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048)

func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largestPrimeFactor = 1
    
    while n % 2 == 0 {
        largestPrimeFactor = 2
        n /= 2
    }
    
    for i in 3...n {
        if n % i == 0 {
            largestPrimeFactor = i
            n /= i
        }
    }
    
    return largestPrimeFactor
}
```swift
// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
    var n = n
    var largestPrimeFactor = 1
    
    while n % 2 == 0 {
        largestPrimeFactor = 2
        n /= 2
    }
    
    for i in 3...n {
        if n % i == 0 {
            largestPrimeFactor = i
            n /= i
        }
    }
    
    return largestPrimeFactor
}
<|file_separator|>
 // XCTAssertTrue failed

func largestPrimeFactor(n: Int) -> Int {
  var n = n
  var largestPrimeFactor = 1
  var i = 2
  while i * i <= n {
    if n % i == 0 {
      largestPrimeFactor = i
      n = n / i
    } else {
      i = i + 1
    }
  }
  if n > largestPrimeFactor {
    largestPrimeFactor = n
  }
  return largestPrimeFactor
}
```swift
// Return the largest prime factor of n. Assume n > 1 and is not a prime.
// largestPrimeFactor(n: 13195) == 29
// largestPrimeFactor(n: 2048) == 2
func largestPrimeFactor(n: Int) -> Int {
  var n = n
  var largestPrimeFactor = 1
  var i = 2
  while i * i <= n {
    if n % i == 0 {
      largestPrimeFactor = i
      n = n / i
    } else {
      i = i + 1
    }
  }
  if n > largestPrimeFactor {
    largestPrimeFactor = n
  }
  return largestPrimeFactor
}
<|file_separator|>

func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}
```swift
// sum_to_n is a function that sums numbers from 1 to n.
// sumToN(n: 30) == 465
// sumToN(n: 100) == 5050
// sumToN(n: 5) == 15
// sumToN(n: 10) == 55
// sumToN(n: 1) == 1
func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}
<|file_separator|>

func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}
```swift
// sum_to_n is a function that sums numbers from 1 to n.
// sumToN(n: 30) == 465
// sumToN(n: 100) == 5050
// sumToN(n: 5) == 15
// sumToN(n: 10) == 55
// sumToN(n: 1) == 1
func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}
<|file_separator|>

func sumToN(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    return n + sumToN(n: n - 1)
}

func factorial(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    return n * factorial(n: n - 1)
}

func fibonacci(n: Int) -> Int {
    if n == 1 || n == 2 {
        return 1
    }
    return fibonacci(n: n - 1) + fibonacci(n: n - 2)
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    if n <= 3 {
        return true
    }
    if n % 2 == 0 || n % 3 == 0 {
        return false
    }
    var i = 5
    while i * i <= n {
        if n % i == 0 || n % (i + 2) == 0 {
            return false
        }
        i += 6
    }
    return true
}
```swift
// sum_to_n is a function that sums numbers from 1 to n.
// sumToN(n: 30) == 465
// sumToN(n: 100) == 5050
// sumToN(n: 5) == 15
// sumToN(n: 10) == 55
// sumToN(n: 1) == 1
func sumToN(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    return n + sumToN(n: n - 1)
}

// factorial is a function that calculates the factorial of a number.
// factorial(n: 5) == 120
// factorial(n: 10) == 3628800
// factorial(n: 1) == 1
func factorial(n: Int) -> Int {
    if n == 1 {
        return 1
    }
    return n * factorial(n: n - 1)
}

// fibonacci is a function that calculates the nth Fibonacci number.
// fibonacci(n: 1) == 1
// fibonacci(n: 2) == 1
// fibonacci(n: 3) == 2
// fibonacci(n: 4) == 3
// fibonacci(n: 5) == 5
// fibonacci(n: 6) == 8
// fibonacci(n: 7) == 13
// fibonacci(n: 8) == 21
// fibonacci(n: 9) == 34
// fibonacci(n: 10) == 55
func fibonacci(n: Int) -> Int {
    if n == 1 || n == 2 {
        return 1
    }
    return fibonacci(n: n - 1) + fibonacci(n: n - 2)
}

// isPrime is a function that checks if a number is prime.
// isPrime(n: 2) == true
// isPrime(n: 3) == true
// isPrime(n: 4) == false
// isPrime(n: 5) == true
// isPrime(n: 6) == false
// isPrime(n: 7) == true
// isPrime(n: 8) == false
// isPrime(n: 9) == false
// isPrime(n: 10) == false
// isPrime(n: 11) == true
// isPrime(n: 12) == false
// isPrime(n: 13) == true
// isPrime(n: 14) == false
// isPrime(n: 15) == false
// isPrime(n: 16) == false
// isPrime(n: 17) == true
// isPrime(n: 18) == false
// isPrime(n: 19) == true
// isPrime(n: 20) == false
func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    if n <= 3 {
        return true
    }
    if n % 2 == 0 || n % 3 == 0 {
        return false
    }
    var i = 5
    while i * i <= n {
        if n % i == 0 || n % (i + 2) == 0 {
            return false
        }
        i += 6
    }
    return true
}

// isPalindrome is a function that checks if a string is a palindrome.
// isPalindrome(s: "racecar") == true
// isPalindrome(s: "hello") == false
// isPalindrome(s: "level") == true
// isPalindrome(s: "madam") == true
// isPalindrome(s: "racecar") == true
// isPalindrome(s: "radar") == true
// isPalindrome(s: "kayak") == true
// isPalindrome(s: "level") == true
// isPalindrome(s: "madam") == true
// isPalindrome(s: "racecar") == true
// isPalindrome(s: "radar") == true
// isPalindrome(s: "kayak") == true
// isPalindrome(s: "level") == true
// isPalindrome(s: "madam") == true
// isPalindrome(s: "racecar") == true
// isPalindrome(s: "radar") == true
// isPalindrome(s: "kayak") == true
// isPalindrome(s: "level") == true
// isPalindrome(s: "madam") == true
// isPalindrome(s: "racecar") == true
// isPalindrome(s: "radar") == true
// isPalindrome(s: "kayak") == true
// isPalindrome(s: "level") == true
// isPalindrome(s: "madam") ==

func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}
```swift
// sum_to_n is a function that sums numbers from 1 to n.
// sumToN(n: 30) == 465
// sumToN(n: 100) == 5050
// sumToN(n: 5) == 15
// sumToN(n: 10) == 55
// sumToN(n: 1) == 1
func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}
<|file_separator|>

func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}

func sumToNRecursive(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive(n: n - 1)
    }
}

func sumToNRecursive2(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive2(n: n - 1)
    }
}

func sumToNRecursive3(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive3(n: n - 1)
    }
}

func sumToNRecursive4(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive4(n: n - 1)
    }
}

func sumToNRecursive5(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive5(n: n - 1)
    }
}
```swift
// sum_to_n is a function that sums numbers from 1 to n.
// sumToN(n: 30) == 465
// sumToN(n: 100) == 5050
// sumToN(n: 5) == 15
// sumToN(n: 10) == 55
// sumToN(n: 1) == 1
func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}

// sum_to_n_recursive is a function that sums numbers from 1 to n.
// sumToNRecursive(n: 30) == 465
// sumToNRecursive(n: 100) == 5050
// sumToNRecursive(n: 5) == 15
// sumToNRecursive(n: 10) == 55
// sumToNRecursive(n: 1) == 1
func sumToNRecursive(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive(n: n - 1)
    }
}

// sum_to_n_recursive_2 is a function that sums numbers from 1 to n.
// sumToNRecursive2(n: 30) == 465
// sumToNRecursive2(n: 100) == 5050
// sumToNRecursive2(n: 5) == 15
// sumToNRecursive2(n: 10) == 55
// sumToNRecursive2(n: 1) == 1
func sumToNRecursive2(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive2(n: n - 1)
    }
}

// sum_to_n_recursive_3 is a function that sums numbers from 1 to n.
// sumToNRecursive3(n: 30) == 465
// sumToNRecursive3(n: 100) == 5050
// sumToNRecursive3(n: 5) == 15
// sumToNRecursive3(n: 10) == 55
// sumToNRecursive3(n: 1) == 1
func sumToNRecursive3(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive3(n: n - 1)
    }
}

// sum_to_n_recursive_4 is a function that sums numbers from 1 to n.
// sumToNRecursive4(n: 30) == 465
// sumToNRecursive4(n: 100) == 5050
// sumToNRecursive4(n: 5) == 15
// sumToNRecursive4(n: 10) == 55
// sumToNRecursive4(n: 1) == 1
func sumToNRecursive4(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive4(n: n - 1)
    }
}

// sum_to_n_recursive_5 is a function that sums numbers from 1 to n.
// sumToNRecursive5(n: 30) == 465
// sumToNRecursive5(n: 100) == 5050
// sumToNRecursive5(n: 5) == 15
// sumToNRecursive5(n: 10) == 55
// sumToNRecursive5(n: 1) == 1
func sumToNRecursive5(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive5(n: n - 1)
    }
}

// sum_to_n_recursive_6 is a function that sums numbers from 1 to n.
// sumToNRecursive6(n: 30) == 465
// sumToNRecursive6(n: 100) == 5050
// sumToNRecursive6(n: 5) == 15
// sumToNRecursive6(n: 10) == 55
// sumToNRecursive6(n: 1) == 1
func sumToNRecursive6(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n +

func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}

func sumToNRec(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRec(n: n - 1)
    }
}

func sumToNRecTail(n: Int) -> Int {
    func sumToNRecTailHelper(n: Int, sum: Int) -> Int {
        if n == 1 {
            return sum
        } else {
            return sumToNRecTailHelper(n: n - 1, sum: sum + n)
        }
    }
    return sumToNRecTailHelper(n: n, sum: 0)
}

func sumToNRecTailTail(n: Int) -> Int {
    func sumToNRecTailHelper(n: Int, sum: Int) -> Int {
        if n == 1 {
            return sum
        } else {
            return sumToNRecTailHelper(n: n - 1, sum: sum + n)
        }
    }
    return sumToNRecTailHelper(n: n, sum: 0)
}

func sumToNRecTailTailTail(n: Int) -> Int {
    func sumToNRecTailHelper(n: Int, sum: Int) -> Int {
        if n == 1 {
            return sum
        } else {
            return sumToNRecTailHelper(n: n - 1, sum: sum + n)
        }
    }
    return sumToNRecTailHelper(n: n, sum: 0)
}
```swift
// sum_to_n is a function that sums numbers from 1 to n.
// sumToN(n: 30) == 465
// sumToN(n: 100) == 5050
// sumToN(n: 5) == 15
// sumToN(n: 10) == 55
// sumToN(n: 1) == 1
func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}

// sum_to_n_rec is a recursive function that sums numbers from 1 to n.
// sumToNRec(n: 30) == 465
// sumToNRec(n: 100) == 5050
// sumToNRec(n: 5) == 15
// sumToNRec(n: 10) == 55
// sumToNRec(n: 1) == 1
func sumToNRec(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRec(n: n - 1)
    }
}

// sum_to_n_rec_tail is a recursive function that sums numbers from 1 to n.
// sumToNRecTail(n: 30) == 465
// sumToNRecTail(n: 100) == 5050
// sumToNRecTail(n: 5) == 15
// sumToNRecTail(n: 10) == 55
// sumToNRecTail(n: 1) == 1
func sumToNRecTail(n: Int) -> Int {
    func sumToNRecTailHelper(n: Int, sum: Int) -> Int {
        if n == 1 {
            return sum
        } else {
            return sumToNRecTailHelper(n: n - 1, sum: sum + n)
        }
    }
    return sumToNRecTailHelper(n: n, sum: 0)
}

// sum_to_n_rec_tail_tail is a recursive function that sums numbers from 1 to n.
// sumToNRecTailTail(n: 30) == 465
// sumToNRecTailTail(n: 100) == 5050
// sumToNRecTailTail(n: 5) == 15
// sumToNRecTailTail(n: 10) == 55
// sumToNRecTailTail(n: 1) == 1
func sumToNRecTailTail(n: Int) -> Int {
    func sumToNRecTailHelper(n: Int, sum: Int) -> Int {
        if n == 1 {
            return sum
        } else {
            return sumToNRecTailHelper(n: n - 1, sum: sum + n)
        }
    }
    return sumToNRecTailHelper(n: n, sum: 0)
}

// sum_to_n_rec_tail_tail_tail is a recursive function that sums numbers from 1 to n.
// sumToNRecTailTailTail(n: 30) == 465
// sumToNRecTailTailTail(n: 100) == 5050
// sumToNRecTailTailTail(n: 5) == 15
// sumToNRecTailTailTail(n: 10) == 55
// sumToNRecTailTailTail(n: 1) == 1
func sumToNRecTailTailTail(n: Int) -> Int {
    func sumToNRecTailHelper(n: Int, sum: Int) -> Int {
        if n == 1 {
            return sum
        } else {
            return sumToNRecTailHelper(n: n - 1, sum: sum + n)
        }
    }
    return sumToNRecTailHelper(n: n, sum: 0)
}

// sum_to_n_rec_tail_tail_tail_tail is a recursive function that sums numbers from 1 to n.
// sumToNRecTailTailTailTail(n: 30) == 465
// sumToNRecTailTailTailTail(n: 100) == 5050
// sumToNRecTailTailTailTail(n: 5) == 15
// sumToNRecTailTailTailTail(n: 10) == 55
// sumToNRecTailTailTailTail(n: 1) == 1
func sumToNRecTailTailTailTail(n: Int) -> Int

func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}
```swift
// sum_to_n is a function that sums numbers from 1 to n.
// sumToN(n: 30) == 465
// sumToN(n: 100) == 5050
// sumToN(n: 5) == 15
// sumToN(n: 10) == 55
// sumToN(n: 1) == 1
func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}
<|file_separator|>

func sumToN(n: Int) -> Int {
  var sum = 0
  for i in 1...n {
    sum += i
  }
  return sum
}

func factorial(n: Int) -> Int {
  var result = 1
  for i in 1...n {
    result *= i
  }
  return result
}

func fibonacci(n: Int) -> Int {
  if n <= 1 {
    return n
  }
  var a = 0
  var b = 1
  for i in 2...n {
    let temp = a + b
    a = b
    b = temp
  }
  return b
}

func isPrime(n: Int) -> Bool {
  if n <= 1 {
    return false
  }
  for i in 2..<n {
    if n % i == 0 {
      return false
    }
  }
  return true
}

func isPalindrome(s: String) -> Bool {
  let chars = Array(s)
  var left = 0
  var right = chars.count - 1
  while left < right {
    if chars[left] != chars[right] {
      return false
    }
    left += 1
    right -= 1
  }
  return true
}

func reverseString(s: String) -> String {
  let chars = Array(s)
  var reversed = ""
  for i in (0..<chars.count).reversed() {
    reversed += String(chars[i])
  }
  return reversed
}

func isAnagram(s1: String, s2: String) -> Bool {
  let chars1 = Array(s1)
  let chars2 = Array(s2)
  if chars1.count != chars2.count {
    return false
  }
  var charCount = [Character: Int]()
  for char in chars1 {
    charCount[char, default: 0] += 1
  }
  for char in chars2 {
    charCount[char, default: 0] -= 1
  }
  for count in charCount.values {
    if count != 0 {
      return false
    }
  }
  return true
}
```swift
// sum_to_n is a function that sums numbers from 1 to n.
// sumToN(n: 30) == 465
// sumToN(n: 100) == 5050
// sumToN(n: 5) == 15
// sumToN(n: 10) == 55
// sumToN(n: 1) == 1
func sumToN(n: Int) -> Int {
  var sum = 0
  for i in 1...n {
    sum += i
  }
  return sum
}

// factorial is a function that calculates the factorial of a number.
// factorial(n: 5) == 120
// factorial(n: 10) == 3628800
// factorial(n: 0) == 1
func factorial(n: Int) -> Int {
  var result = 1
  for i in 1...n {
    result *= i
  }
  return result
}

// fibonacci is a function that calculates the nth Fibonacci number.
// fibonacci(n: 1) == 1
// fibonacci(n: 2) == 1
// fibonacci(n: 3) == 2
// fibonacci(n: 4) == 3
// fibonacci(n: 5) == 5
// fibonacci(n: 6) == 8
func fibonacci(n: Int) -> Int {
  if n <= 1 {
    return n
  }
  var a = 0
  var b = 1
  for i in 2...n {
    let temp = a + b
    a = b
    b = temp
  }
  return b
}

// isPrime is a function that checks if a number is prime.
// isPrime(n: 2) == true
// isPrime(n: 3) == true
// isPrime(n: 4) == false
// isPrime(n: 5) == true
// isPrime(n: 6) == false
func isPrime(n: Int) -> Bool {
  if n <= 1 {
    return false
  }
  for i in 2..<n {
    if n % i == 0 {
      return false
    }
  }
  return true
}

// isPalindrome is a function that checks if a string is a palindrome.
// isPalindrome(s: "racecar") == true
// isPalindrome(s: "hello") == false
// isPalindrome(s: "level") == true
func isPalindrome(s: String) -> Bool {
  let chars = Array(s)
  var left = 0
  var right = chars.count - 1
  while left < right {
    if chars[left] != chars[right] {
      return false
    }
    left += 1
    right -= 1
  }
  return true
}

// reverseString is a function that reverses a string.
// reverseString(s: "hello") == "olleh"
// reverseString(s: "world") == "dlrow"
func reverseString(s: String) -> String {
  let chars = Array(s)
  var reversed = ""
  for i in (0..<chars.count).reversed() {
    reversed += String(chars[i])
  }
  return reversed
}

// isAnagram is a function that checks if two strings are anagrams.
// isAnagram(s1: "listen", s2: "silent") == true
// isAnagram(s1: "hello", s2: "world") == false
// isAnagram(s1: "racecar", s2: "carrace") == true
func isAnagram(s1: String, s2: String) -> Bool {
  let chars1 = Array(s1)
  let chars2 = Array(s2)
  if chars1.count != chars2.count {
    return false
  }
  var charCount = [Character: Int]()
  for char in chars1 {
    charCount[char, default: 0] += 1
  }
  for char in chars2 {
    charCount[char, default: 0] -= 1
  }
  for count in charCount.values {
    if count != 0 {
      return false
    }
  }
  return true
}

// isPangram is a function that checks if a string is a pangram.
// isPangram(s: "The quick brown fox jumps over the lazy dog") == true
// isPangram(s: "The quick brown fox jumps over the lazy dog") == true
// isPangram(s: "The quick brown fox jumps over the lazy dog") == true
func isPangram(s: String) -> Bool {
  let chars = Array(s)
  var charSet = Set<Character
for i in 2...n { // immutable value 'i' was never used; consider replacing with '_' or removing it

func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}
```swift
// sum_to_n is a function that sums numbers from 1 to n.
// sumToN(n: 30) == 465
// sumToN(n: 100) == 5050
// sumToN(n: 5) == 15
// sumToN(n: 10) == 55
// sumToN(n: 1) == 1
func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}
<|file_separator|>

func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}

func sumToNRecursive(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive(n: n - 1)
    }
}

func factorial(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n * factorial(n: n - 1)
    }
}

func fibonacci(n: Int) -> Int {
    if n == 1 || n == 2 {
        return 1
    } else {
        return fibonacci(n: n - 1) + fibonacci(n: n - 2)
    }
}
```swift
// sum_to_n is a function that sums numbers from 1 to n.
// sumToN(n: 30) == 465
// sumToN(n: 100) == 5050
// sumToN(n: 5) == 15
// sumToN(n: 10) == 55
// sumToN(n: 1) == 1
func sumToN(n: Int) -> Int {
    var sum = 0
    for i in 1...n {
        sum += i
    }
    return sum
}

// sum_to_n_recursive is a function that sums numbers from 1 to n.
// sumToNRecursive(n: 30) == 465
// sumToNRecursive(n: 100) == 5050
// sumToNRecursive(n: 5) == 15
// sumToNRecursive(n: 10) == 55
// sumToNRecursive(n: 1) == 1
func sumToNRecursive(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n + sumToNRecursive(n: n - 1)
    }
}

// factorial is a function that calculates the factorial of n.
// factorial(n: 3) == 6
// factorial(n: 5) == 120
// factorial(n: 10) == 3628800
// factorial(n: 1) == 1
func factorial(n: Int) -> Int {
    if n == 1 {
        return 1
    } else {
        return n * factorial(n: n - 1)
    }
}

// fibonacci is a function that calculates the nth fibonacci number.
// fibonacci(n: 1) == 1
// fibonacci(n: 2) == 1
// fibonacci(n: 3) == 2
// fibonacci(n: 4) == 3
// fibonacci(n: 5) == 5
// fibonacci(n: 6) == 8
// fibonacci(n: 7) == 13
// fibonacci(n: 8) == 21
// fibonacci(n: 9) == 34
// fibonacci(n: 10) == 55
// fibonacci(n: 11) == 89
// fibonacci(n: 12) == 144
// fibonacci(n: 13) == 233
// fibonacci(n: 14) == 377
// fibonacci(n: 15) == 610
// fibonacci(n: 16) == 987
// fibonacci(n: 17) == 1597
// fibonacci(n: 18) == 2584
// fibonacci(n: 19) == 4181
// fibonacci(n: 20) == 6765
func fibonacci(n: Int) -> Int {
    if n == 1 || n == 2 {
        return 1
    } else {
        return fibonacci(n: n - 1) + fibonacci(n: n - 2)
    }
}

// fibonacci_recursive is a function that calculates the nth fibonacci number.
// fibonacciRecursive(n: 1) == 1
// fibonacciRecursive(n: 2) == 1
// fibonacciRecursive(n: 3) == 2
// fibonacciRecursive(n: 4) == 3
// fibonacciRecursive(n: 5) == 5
// fibonacciRecursive(n: 6) == 8
// fibonacciRecursive(n: 7) == 13
// fibonacciRecursive(n: 8) == 21
// fibonacciRecursive(n: 9) == 34
// fibonacciRecursive(n: 10) == 55
// fibonacciRecursive(n: 11) == 89
// fibonacciRecursive(n: 12) == 144
// fibonacciRecursive(n: 13) == 233
// fibonacciRecursive(n: 14) == 377
// fibonacciRecursive(n: 15) == 610
// fibonacciRecursive(n: 16) == 987
// fibonacciRecursive(n: 17) == 1597
// fibonacciRecursive(n: 18) == 2584
// fibonacciRecursive(n: 19) == 4181
// fibonacciRecursive(n: 20) == 6765
func fibonacciRecursive(n: Int) -> Int {
    if n == 1 || n == 2 {
        return 1
    } else {
        return fibonacciRecursive(n: n - 1) +

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "(") == false
// correctBracketing(brackets: "()") == true
// correctBracketing(brackets: "(()())") == true
// correctBracketing(brackets: ")(()") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else if bracket == ")" {
            if stack.isEmpty {
                return false
            } else {
                stack.removeLast()
            }
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "(") == false
// correctBracketing(brackets: "()") == true
// correctBracketing(brackets: "(()())") == true
// correctBracketing(brackets: ")(()") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else if bracket == ")" {
            if stack.isEmpty {
                return false
            } else {
                stack.removeLast()
            }
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else if bracket == ")" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "(") == false
// correctBracketing(brackets: "()") == true
// correctBracketing(brackets: "(()())") == true
// correctBracketing(brackets: ")(()") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else if bracket == ")" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else if bracket == ")" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "(") == false
// correctBracketing(brackets: "()") == true
// correctBracketing(brackets: "(()())") == true
// correctBracketing(brackets: ")(()") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else if bracket == ")" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "(") == false
// correctBracketing(brackets: "()") == true
// correctBracketing(brackets: "(()())") == true
// correctBracketing(brackets: ")(()") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>```

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else if bracket == ")" {
            if stack.isEmpty {
                return false
            } else {
                stack.removeLast()
            }
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "(") == false
// correctBracketing(brackets: "()") == true
// correctBracketing(brackets: "(()())") == true
// correctBracketing(brackets: ")(()") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else if bracket == ")" {
            if stack.isEmpty {
                return false
            } else {
                stack.removeLast()
            }
        }
    }
    return stack.isEmpty
}
<|file_separator|>```

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else if bracket == ")" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "(") == false
// correctBracketing(brackets: "()") == true
// correctBracketing(brackets: "(()())") == true
// correctBracketing(brackets: ")(()") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else if bracket == ")" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "(") == false
// correctBracketing(brackets: "()") == true
// correctBracketing(brackets: "(()())") == true
// correctBracketing(brackets: ")(()") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>```

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "(") == false
// correctBracketing(brackets: "()") == true
// correctBracketing(brackets: "(()())") == true
// correctBracketing(brackets: ")(()") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for bracket in brackets {
        if bracket == "(" {
            stack.append(bracket)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>```

func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for char in brackets {
        if char == "(" {
            stack.append(char)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// brackets is a string of "(" and ")".
// return true if every opening bracket has a corresponding closing bracket.
// correctBracketing(brackets: "(") == false
// correctBracketing(brackets: "()") == true
// correctBracketing(brackets: "(()())") == true
// correctBracketing(brackets: ")(()") == false
func correctBracketing(brackets: String) -> Bool {
    var stack = [Character]()
    for char in brackets {
        if char == "(" {
            stack.append(char)
        } else {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>

func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}
```swift
// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return derivative of this polynomial in the same form.
// derivative(xs: [3, 1, 2, 4, 5]) == [1, 4, 12, 20]
// derivative(xs: [1, 2, 3]) == [2, 6]
func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// evaluate(xs: [3, 1, 2, 4, 5], x: 2) == 3 + 2 * 2 + 4 * 2 * 2 + 5 * 2 * 2 * 2
// evaluate(xs: [1, 2, 3], x: 2) == 1 + 2 * 2 + 3 * 2 * 2
func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// evaluate(xs: [3, 1, 2, 4, 5], x: 2) == 3 + 2 * 2 + 4 * 2 * 2 + 5 * 2 * 2 * 2
// evaluate(xs: [1, 2, 3], x: 2) == 1 + 2 * 2 + 3 * 2 * 2
func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// evaluate(xs: [3, 1, 2, 4, 5], x: 2) == 3 + 2 * 2 + 4 * 2 * 2 + 5 * 2 * 2 * 2
// evaluate(xs: [1, 2, 3], x: 2) == 1 + 2 * 2 + 3 * 2 * 2
func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// evaluate(xs: [3, 1, 2, 4, 5], x: 2) == 3 + 2 * 2 + 4 * 2 * 2 + 5 * 2 * 2 * 2
// evaluate(xs: [1, 2, 3], x: 2) == 1 + 2 * 2 + 3 * 2 * 2
func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// evaluate(xs: [3, 1, 2, 4, 5], x: 2) == 3 + 2 * 2 + 4 * 2 * 2 + 5 * 2 * 2 * 2
// evaluate(xs: [1, 2, 3], x: 2) == 1 + 2 * 2 + 3 * 2 * 2
func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return
result += xs[i] * pow(x, i) // cannot convert value of type 'Decimal' to expected argument type 'Int'
result += xs[i] * pow(x, i) // cannot convert value of type 'Int' to expected argument type 'Decimal'

func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}
```swift
// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return derivative of this polynomial in the same form.
// derivative(xs: [3, 1, 2, 4, 5]) == [1, 4, 12, 20]
// derivative(xs: [1, 2, 3]) == [2, 6]
func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this
result += xs[i] * pow(x, i) // cannot convert value of type 'Decimal' to expected argument type 'Int'
result += xs[i] * pow(x, i) // cannot convert value of type 'Int' to expected argument type 'Decimal'

func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(i * xs[i])
    }
    return result
}

func integral(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<xs.count {
        result.append(xs[i] + i)
    }
    return result
}

func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

func pow(x: Int, y: Int) -> Int {
    var result = 1
    for _ in 0..<y {
        result *= x
    }
    return result
}
```swift
// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return derivative of this polynomial in the same form.
// derivative(xs: [3, 1, 2, 4, 5]) == [1, 4, 12, 20]
// derivative(xs: [1, 2, 3]) == [2, 6]
func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(i * xs[i])
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return integral of this polynomial in the same form.
// integral(xs: [3, 1, 2, 4, 5]) == [3, 4, 6, 10]
// integral(xs: [1, 2, 3]) == [1, 3]
func integral(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<xs.count {
        result.append(xs[i] + i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 11
// value(xs: [1, 2, 3], x: 2) == 5
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 11
// value(xs: [1, 2, 3], x: 2) == 5
func pow(x: Int, y: Int) -> Int {
    var result = 1
    for _ in 0..<y {
        result *= x
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 11
// value(xs: [1, 2, 3], x: 2) == 5
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 11
// value(xs: [1, 2, 3], x: 2) == 5
func pow(x: Int, y: Int) -> Int {
    var result = 1
    for _ in 0..<y {
        result *= x
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 11
// value(xs: [1, 2, 3], x: 2) == 5
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) ==
result += xs[i] * pow(x, i) // missing argument labels 'x:y:' in call

func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

func value(xs: [Int]) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(2, i)
    }
    return result
}

func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}
```swift
// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return derivative of this polynomial in the same form.
// derivative(xs: [3, 1, 2, 4, 5]) == [1, 4, 12, 20]
// derivative(xs: [1, 2, 3]) == [2, 6]
func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 14
// value(xs: [1, 2, 3]) == 14
func value(xs: [Int]) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(2, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 14
// value(xs: [1, 2, 3]) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 14
// value(xs: [1, 2, 3]) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 14
// value(xs: [1, 2, 3]) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 14
// value(xs: [1, 2, 3]) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 14
// value(xs: [1, 2, 3]) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 14
// value(xs: [1, 2, 3
result += xs[i] * pow(2, i) // cannot convert value of type 'Decimal' to expected argument type 'Int'
result += xs[i] * pow(x, i) // cannot convert value of type 'Int' to expected argument type 'Decimal'
result += xs[i] * pow(x, i) // cannot convert value of type 'Decimal' to expected argument type 'Int'

func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(i * xs[i])
    }
    return result
}

func value(xs: [Int]) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(2, Double(i))
    }
    return result
}

func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, Double(i))
    }
    return result
}
```swift
// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return derivative of this polynomial in the same form.
// derivative(xs: [3, 1, 2, 4, 5]) == [1, 4, 12, 20]
// derivative(xs: [1, 2, 3]) == [2, 6]
func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(i * xs[i])
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 3 * 2^3 + 1 * 2^2 + 2 * 2^1 + 4 * 2^0
// value(xs: [1, 2, 3]) == 1 * 2^2 + 2 * 2^1 + 3 * 2^0
func value(xs: [Int]) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(2, Double(i))
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 3 * 2^3 + 1 * 2^2 + 2 * 2^1 + 4 * 2^0
// value(xs: [1, 2, 3]) == 1 * 2^2 + 2 * 2^1 + 3 * 2^0
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, Double(i))
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 3 * 2^3 + 1 * 2^2 + 2 * 2^1 + 4 * 2^0
// value(xs: [1, 2, 3]) == 1 * 2^2 + 2 * 2^1 + 3 * 2^0
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, Double(i))
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 3 * 2^3 + 1 * 2^2 + 2 * 2^1 + 4 * 2^0
// value(xs: [1, 2, 3]) == 1 * 2^2 + 2 * 2^1 + 3 * 2^0
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, Double(i))
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial for x = 2.
// value(xs: [3, 1, 2, 4, 5]) == 3 * 2^3 + 1 * 2^2 + 2 * 2^1 + 4 * 2^0
// value(xs: [1, 2, 3]) == 1 * 2^2 + 2 * 2^1 + 3 * 2^0
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x,
result += xs[i] * pow(2, Double(i)) // cannot convert value of type 'Double' to expected argument type 'Int'
result += xs[i] * pow(x, Double(i)) // cannot convert value of type 'Double' to expected argument type 'Int'
result += xs[i] * pow(x, Double(i)) // cannot convert value of type 'Int' to expected argument type 'Double'

func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}
```swift
// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return derivative of this polynomial in the same form.
// derivative(xs: [3, 1, 2, 4, 5]) == [1, 4, 12, 20]
// derivative(xs: [1, 2, 3]) == [2, 6]
func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// evaluate(xs: [3, 1, 2, 4, 5], x: 2) == 11
// evaluate(xs: [1, 2, 3], x: 2) == 14
func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// evaluate(xs: [3, 1, 2, 4, 5], x: 2) == 11
// evaluate(xs: [1, 2, 3], x: 2) == 14
func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// evaluate(xs: [3, 1, 2, 4, 5], x: 2) == 11
// evaluate(xs: [1, 2, 3], x: 2) == 14
func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// evaluate(xs: [3, 1, 2, 4, 5], x: 2) == 11
// evaluate(xs: [1, 2, 3], x: 2) == 14
func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// evaluate(xs: [3, 1, 2, 4, 5], x: 2) == 11
// evaluate(xs: [1, 2, 3], x: 2) == 14
func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// evaluate(xs: [3, 1, 2, 4, 5], x: 2) == 11
// evaluate(xs: [1, 2, 3], x: 2) == 14
func evaluate(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this
result += xs[i] * pow(x, i) // cannot convert value of type 'Decimal' to expected argument type 'Int'
result += xs[i] * pow(x, i) // cannot convert value of type 'Int' to expected argument type 'Decimal'

func derivative(xs: [Int]) -> [Int] {
  var result = [Int]()
  for i in 1..<xs.count {
    result.append(xs[i] * i)
  }
  return result
}

func value(xs: [Int], x: Int) -> Int {
  var result = 0
  for i in 0..<xs.count {
    result += xs[i] * pow(x, i)
  }
  return result
}

func pow(x: Int, n: Int) -> Int {
  if n == 0 {
    return 1
  }
  var result = x
  for _ in 1..<n {
    result *= x
  }
  return result
}
```swift
// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return derivative of this polynomial in the same form.
// derivative(xs: [3, 1, 2, 4, 5]) == [1, 4, 12, 20]
// derivative(xs: [1, 2, 3]) == [2, 6]
func derivative(xs: [Int]) -> [Int] {
  var result = [Int]()
  for i in 1..<xs.count {
    result.append(xs[i] * i)
  }
  return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
  var result = 0
  for i in 0..<xs.count {
    result += xs[i] * pow(x, i)
  }
  return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func pow(x: Int, n: Int) -> Int {
  if n == 0 {
    return 1
  }
  var result = x
  for _ in 1..<n {
    result *= x
  }
  return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
  var result = 0
  for i in 0..<xs.count {
    result += xs[i] * pow(x, i)
  }
  return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func pow(x: Int, n: Int) -> Int {
  if n == 0 {
    return 1
  }
  var result = x
  for _ in 1..<n {
    result *= x
  }
  return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
  var result = 0
  for i in 0..<xs.count {
    result += xs[i] * pow(x, i)
  }
  return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func pow(x: Int, n: Int) -> Int {
  if n == 0 {
    return 1
  }
  var result = x
  for _ in 1..<n {
    result *= x
  }
  return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
result += xs[i] * pow(x, i) // missing argument labels 'x:n:' in call

func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}
```swift
// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return derivative of this polynomial in the same form.
// derivative(xs: [3, 1, 2, 4, 5]) == [1, 4, 12, 20]
// derivative(xs: [1, 2, 3]) == [2, 6]
func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this
result += xs[i] * pow(x, i) // cannot convert value of type 'Decimal' to expected argument type 'Int'
result += xs[i] * pow(x, i) // cannot convert value of type 'Int' to expected argument type 'Decimal'

func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}
```swift
// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return derivative of this polynomial in the same form.
// derivative(xs: [3, 1, 2, 4, 5]) == [1, 4, 12, 20]
// derivative(xs: [1, 2, 3]) == [2, 6]
func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this polynomial at x.
// value(xs: [3, 1, 2, 4, 5], x: 2) == 14
// value(xs: [1, 2, 3], x: 2) == 14
func value(xs: [Int], x: Int) -> Int {
    var result = 0
    for i in 0..<xs.count {
        result += xs[i] * pow(x, i)
    }
    return result
}

// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return the value of this
result += xs[i] * pow(x, i) // cannot convert value of type 'Decimal' to expected argument type 'Int'
result += xs[i] * pow(x, i) // cannot convert value of type 'Int' to expected argument type 'Decimal'

func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}
```swift
// xs represent coefficients of a polynomial.
// xs[0] + xs[1] * x + xs[2] * x^2 + ....
// Return derivative of this polynomial in the same form.
// derivative(xs: [3, 1, 2, 4, 5]) == [1, 4, 12, 20]
// derivative(xs: [1, 2, 3]) == [2, 6]
func derivative(xs: [Int]) -> [Int] {
    var result = [Int]()
    for i in 1..<xs.count {
        result.append(xs[i] * i)
    }
    return result
}
<|file_separator|>

func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 1
    } else {
        return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
    }
}
```swift
// The FibFib number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fibfib(0) == 0
// fibfib(1) == 0
// fibfib(2) == 1
// fibfib(n) == fibfib(n-1) + fibfib(n-2) + fibfib(n-3).
// Please write a function to efficiently compute the n-th element of the fibfib number sequence.
// fibfib(n: 1) == 0
// fibfib(n: 5) == 4
// fibfib(n: 8) == 24
func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 1
    } else {
        return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
    }
}
<|file_separator|>

func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 1
    }
    return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
}
```swift
// The FibFib number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fibfib(0) == 0
// fibfib(1) == 0
// fibfib(2) == 1
// fibfib(n) == fibfib(n-1) + fibfib(n-2) + fibfib(n-3).
// Please write a function to efficiently compute the n-th element of the fibfib number sequence.
// fibfib(n: 1) == 0
// fibfib(n: 5) == 4
// fibfib(n: 8) == 24
func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 1
    }
    return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
}
<|file_separator|>```

func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 1
    }
    return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
}
```swift
// The FibFib number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fibfib(0) == 0
// fibfib(1) == 0
// fibfib(2) == 1
// fibfib(n) == fibfib(n-1) + fibfib(n-2) + fibfib(n-3).
// Please write a function to efficiently compute the n-th element of the fibfib number sequence.
// fibfib(n: 1) == 0
// fibfib(n: 5) == 4
// fibfib(n: 8) == 24
func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 1
    }
    return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
}
<|file_separator|>

func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 1
    }
    return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
}
```swift
// The FibFib number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fibfib(0) == 0
// fibfib(1) == 0
// fibfib(2) == 1
// fibfib(n) == fibfib(n-1) + fibfib(n-2) + fibfib(n-3).
// Please write a function to efficiently compute the n-th element of the fibfib number sequence.
// fibfib(n: 1) == 0
// fibfib(n: 5) == 4
// fibfib(n: 8) == 24
func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 1
    }
    return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
}

print(fibfib(n: 1))
print(fibfib(n: 5))
print(fibfib(n: 8))
<|file_separator|>

func fibfib(n: Int) -> Int {
    var fibs = [Int](repeating: 0, count: n + 1)
    fibs[0] = 0
    fibs[1] = 0
    fibs[2] = 1
    for i in 3...n {
        fibs[i] = fibs[i - 1] + fibs[i - 2] + fibs[i - 3]
    }
    return fibs[n]
}
```swift
// The FibFib number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fibfib(0) == 0
// fibfib(1) == 0
// fibfib(2) == 1
// fibfib(n) == fibfib(n-1) + fibfib(n-2) + fibfib(n-3).
// Please write a function to efficiently compute the n-th element of the fibfib number sequence.
// fibfib(n: 1) == 0
// fibfib(n: 5) == 4
// fibfib(n: 8) == 24
func fibfib(n: Int) -> Int {
    var fibs = [Int](repeating: 0, count: n + 1)
    fibs[0] = 0
    fibs[1] = 0
    fibs[2] = 1
    for i in 3...n {
        fibs[i] = fibs[i - 1] + fibs[i - 2] + fibs[i - 3]
    }
    return fibs[n]
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 1
    }
    return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
}
```swift
// The FibFib number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fibfib(0) == 0
// fibfib(1) == 0
// fibfib(2) == 1
// fibfib(n) == fibfib(n-1) + fibfib(n-2) + fibfib(n-3).
// Please write a function to efficiently compute the n-th element of the fibfib number sequence.
// fibfib(n: 1) == 0
// fibfib(n: 5) == 4
// fibfib(n: 8) == 24
func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 1
    }
    return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
}

print(fibfib(n: 1))
print(fibfib(n: 5))
print(fibfib(n: 8))
<|file_separator|>

func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 1
    } else {
        return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
    }
}
```swift
// The FibFib number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fibfib(0) == 0
// fibfib(1) == 0
// fibfib(2) == 1
// fibfib(n) == fibfib(n-1) + fibfib(n-2) + fibfib(n-3).
// Please write a function to efficiently compute the n-th element of the fibfib number sequence.
// fibfib(n: 1) == 0
// fibfib(n: 5) == 4
// fibfib(n: 8) == 24
func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 1
    } else {
        return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
    }
}
<|file_separator|>

func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 1
    }
    return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
}
```swift
// The FibFib number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fibfib(0) == 0
// fibfib(1) == 0
// fibfib(2) == 1
// fibfib(n) == fibfib(n-1) + fibfib(n-2) + fibfib(n-3).
// Please write a function to efficiently compute the n-th element of the fibfib number sequence.
// fibfib(n: 1) == 0
// fibfib(n: 5) == 4
// fibfib(n: 8) == 24
func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    }
    if n == 1 {
        return 0
    }
    if n == 2 {
        return 1
    }
    return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
}

print(fibfib(n: 1))
print(fibfib(n: 5))
print(fibfib(n: 8))
<|file_separator|>

func fibfib(n: Int) -> Int {
    if n < 2 {
        return n
    }
    var a = 0
    var b = 0
    var c = 1
    for _ in 2...n {
        a = b
        b = c
        c = a + b
    }
    return c
}
```swift
// The FibFib number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fibfib(0) == 0
// fibfib(1) == 0
// fibfib(2) == 1
// fibfib(n) == fibfib(n-1) + fibfib(n-2) + fibfib(n-3).
// Please write a function to efficiently compute the n-th element of the fibfib number sequence.
// fibfib(n: 1) == 0
// fibfib(n: 5) == 4
// fibfib(n: 8) == 24
func fibfib(n: Int) -> Int {
    if n < 2 {
        return n
    }
    var a = 0
    var b = 0
    var c = 1
    for _ in 2...n {
        a = b
        b = c
        c = a + b
    }
    return c
}
<|file_separator|>
 // XCTAssertTrue failed

func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 1
    } else {
        return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
    }
}
```swift
// The FibFib number sequence is a sequence similar to the Fibbonacci sequnece that's defined as follows:
// fibfib(0) == 0
// fibfib(1) == 0
// fibfib(2) == 1
// fibfib(n) == fibfib(n-1) + fibfib(n-2) + fibfib(n-3).
// Please write a function to efficiently compute the n-th element of the fibfib number sequence.
// fibfib(n: 1) == 0
// fibfib(n: 5) == 4
// fibfib(n: 8) == 24
func fibfib(n: Int) -> Int {
    if n == 0 {
        return 0
    } else if n == 1 {
        return 0
    } else if n == 2 {
        return 1
    } else {
        return fibfib(n: n-1) + fibfib(n: n-2) + fibfib(n: n-3)
    }
}
<|file_separator|>```

func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
```swift
// Write a function vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
// Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
// vowel, but only when it is at the end of the given word.
// Example:
// vowelsCount(s: "abcde") == 2
// vowelsCount(s: "ACEDY") == 3
func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func vowelsCount(s: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for char in s {
        if vowels.contains(String(char).lowercased()) {
            count += 1
        }
    }
    return count
}
```swift
// Write a function vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
// Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
// vowel, but only when it is at the end of the given word.
// Example:
// vowelsCount(s: "abcde") == 2
// vowelsCount(s: "ACEDY") == 3
func vowelsCount(s: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    var count = 0
    for char in s {
        if vowels.contains(String(char).lowercased()) {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
```swift
// Write a function vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
// Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
// vowel, but only when it is at the end of the given word.
// Example:
// vowelsCount(s: "abcde") == 2
// vowelsCount(s: "ACEDY") == 3
func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
```swift
// Write a function vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
// Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
// vowel, but only when it is at the end of the given word.
// Example:
// vowelsCount(s: "abcde") == 2
// vowelsCount(s: "ACEDY") == 3
func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
```swift
// Write a function vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
// Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
// vowel, but only when it is at the end of the given word.
// Example:
// vowelsCount(s: "abcde") == 2
// vowelsCount(s: "ACEDY") == 3
func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func vowelsCount(s: String) -> Int {
    let vowels = "aeiouy"
    var count = 0
    for char in s {
        if vowels.contains(char) {
            count += 1
        }
    }
    return count
}
```swift
// Write a function vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
// Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
// vowel, but only when it is at the end of the given word.
// Example:
// vowelsCount(s: "abcde") == 2
// vowelsCount(s: "ACEDY") == 3
func vowelsCount(s: String) -> Int {
    let vowels = "aeiouy"
    var count = 0
    for char in s {
        if vowels.contains(char) {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
```swift
// Write a function vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
// Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
// vowel, but only when it is at the end of the given word.
// Example:
// vowelsCount(s: "abcde") == 2
// vowelsCount(s: "ACEDY") == 3
func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
```swift
// Write a function vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
// Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
// vowel, but only when it is at the end of the given word.
// Example:
// vowelsCount(s: "abcde") == 2
// vowelsCount(s: "ACEDY") == 3
func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func vowelsCount(s: String) -> Int {
    let vowels = "aeiouy"
    var count = 0
    for char in s {
        if vowels.contains(char) {
            count += 1
        }
    }
    return count
}
```swift
// Write a function vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
// Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
// vowel, but only when it is at the end of the given word.
// Example:
// vowelsCount(s: "abcde") == 2
// vowelsCount(s: "ACEDY") == 3
func vowelsCount(s: String) -> Int {
    let vowels = "aeiouy"
    var count = 0
    for char in s {
        if vowels.contains(char) {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
```swift
// Write a function vowels_count which takes a string representing
// a word as input and returns the number of vowels in the string.
// Vowels in this case are 'a', 'e', 'i', 'o', 'u'. Here, 'y' is also a
// vowel, but only when it is at the end of the given word.
// Example:
// vowelsCount(s: "abcde") == 2
// vowelsCount(s: "ACEDY") == 3
func vowelsCount(s: String) -> Int {
    var count = 0
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits2 = digits.suffix(shift) + digits.prefix(digits.count - shift)
    return digits2.joined()
}
```swift
// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits2 = digits.suffix(shift) + digits.prefix(digits.count - shift)
    return digits2.joined()
}
<|file_separator|>
 // XCTAssertTrue failed

func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    return String(digits.suffix(shift) + digits.prefix(digits.count - shift))
}
```swift
// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    return String(digits.suffix(shift) + digits.prefix(digits.count - shift))
}
<|file_separator|>
return String(digits.suffix(shift) + digits.prefix(digits.count - shift)) // no exact matches in call to initializer

func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    return String(digits.suffix(shift) + digits.prefix(digits.count - shift))
}
```swift
// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    return String(digits.suffix(shift) + digits.prefix(digits.count - shift))
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    return String(digits.suffix(shift) + digits.prefix(digits.count - shift))
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    return String(digits.suffix(shift) + digits.prefix(digits.count - shift))
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    return String(digits.suffix(shift) + digits.prefix(digits.count - shift))
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    return String(digits.suffix(shift) + digits.prefix(digits.count - shift))
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    return String(digits.suffix(shift) + digits.prefix(digits.count - shift))
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    return String(digits.suffix(shift) + digits.prefix(digits.count - shift))
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift
return String(digits.suffix(shift) + digits.prefix(digits.count - shift)) // no exact matches in call to initializer

func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits = digits.map { String($0) }
    let shiftedDigits = digits.suffix(shift) + digits.prefix(digits.count - shift)
    return shiftedDigits.joined()
}
```swift
// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits = digits.map { String($0) }
    let shiftedDigits = digits.suffix(shift) + digits.prefix(digits.count - shift)
    return shiftedDigits.joined()
}
<|file_separator|>
let digits = digits.map { String($0) } // invalid redeclaration of 'digits'

func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits2 = digits.dropLast(shift) + digits.suffix(shift)
    return digits2.joined()
}
```swift
// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits2 = digits.dropLast(shift) + digits.suffix(shift)
    return digits2.joined()
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits2 = digits.dropLast(shift) + digits.suffix(shift)
    return digits2.joined()
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits2 = digits.dropLast(shift) + digits.suffix(shift)
    return digits2.joined()
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits2 = digits.dropLast(shift) + digits.suffix(shift)
    return digits2.joined()
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits2 = digits.dropLast(shift) + digits.suffix(shift)
    return digits2.joined()
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits2 = digits.dropLast(shift) + digits.suffix(shift)
    return digits2.joined()
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digits2 = digits.dropLast(shift) + digits.suffix(shift)
    return digits2.joined()
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift
 // XCTAssertTrue failed

func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    let shifted = digits.suffix(shift) + digits.prefix(digits.count - shift)
    return String(shifted)
}
```swift
// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { Int(String($0))! }
    let shift = shift % digits.count
    let shifted = digits.suffix(shift) + digits.prefix(digits.count - shift)
    return String(shifted)
}
<|file_separator|>```
return String(shifted) // no exact matches in call to initializer

func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digitsShifted = digits.suffix(shift) + digits.prefix(digits.count - shift)
    return digitsShifted.joined()
}

func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}
```swift
// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digitsShifted = digits.suffix(shift) + digits.prefix(digits.count - shift)
    return digitsShifted.joined()
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $0 + Int(String($1))! }
}

// Given a string of digits, return the sum of the digits as an integer.
// sumDigits("123") == 6
func sumDigits(digits: String) -> Int {
    return digits.reduce(0) { $
 // XCTAssertTrue failed

func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digitsReversed = digits.reversed()
    let digitsShifted = digitsReversed.suffix(shift).reversed() + digitsReversed.prefix(digitsReversed.count - shift)
    return digitsShifted.joined()
}
```swift
// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digitsReversed = digits.reversed()
    let digitsShifted = digitsReversed.suffix(shift).reversed() + digitsReversed.prefix(digitsReversed.count - shift)
    return digitsShifted.joined()
}

// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let digitsReversed = digits.reversed()
    let digitsShifted = digitsReversed.suffix(shift).reversed() + digitsReversed.prefix(digitsReversed.count - shift)
    return digitsShifted.joined()
}
<|file_separator|>
 // XCTAssertTrue failed

func circularShift(x: Int, shift: Int) -> String {
    var x = x
    var shift = shift
    var result = ""
    var digits = 0
    var digit = 0
    var digitString = ""
    while x > 0 {
        digit = x % 10
        digitString = String(digit)
        digits += 1
        x = x / 10
    }
    if shift > digits {
        shift = shift % digits
    }
    for i in 1...shift {
        digit = x % 10
        digitString = String(digit)
        result = digitString + result
        x = x / 10
    }
    for i in 1...digits-shift {
        digit = x % 10
        digitString = String(digit)
        result = result + digitString
        x = x / 10
    }
    return result
}
```swift
// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    var x = x
    var shift = shift
    var result = ""
    var digits = 0
    var digit = 0
    var digitString = ""
    while x > 0 {
        digit = x % 10
        digitString = String(digit)
        digits += 1
        x = x / 10
    }
    if shift > digits {
        shift = shift % digits
    }
    for i in 1...shift {
        digit = x % 10
        digitString = String(digit)
        result = digitString + result
        x = x / 10
    }
    for i in 1...digits-shift {
        digit = x % 10
        digitString = String(digit)
        result = result + digitString
        x = x / 10
    }
    return result
}
<|file_separator|>
for i in 1...shift { // immutable value 'i' was never used; consider replacing with '_' or removing it
for i in 1...digits-shift { // immutable value 'i' was never used; consider replacing with '_' or removing it
 // XCTAssertTrue failed

func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let left = digits.suffix(shift)
    let right = digits.prefix(digits.count - shift)
    return String(left + right)
}

func countOccurrences(s: String, d: Int) -> Int {
    return s.filter { $0 == String(d) }.count
}
```swift
// Circular shift the digits of the integer x, shift the digits right by shift
// and return the result as a string.
// If shift > number of digits, return digits reversed.
// circularShift(x: 12, shift: 1) == "21"
// circularShift(x: 12, shift: 2) == "12"
func circularShift(x: Int, shift: Int) -> String {
    let digits = String(x).map { String($0) }
    let shift = shift % digits.count
    let left = digits.suffix(shift)
    let right = digits.prefix(digits.count - shift)
    return String(left + right)
}

// Return the number of occurrences of the digit d in the string s.
// countOccurrences(s: "123", d: 1) == 1
// countOccurrences(s: "123", d: 2) == 0
func countOccurrences(s: String, d: Int) -> Int {
    return s.filter { $0 == String(d) }.count
}

// Return the number of occurrences of the digit d in the string s.
// countOccurrences(s: "123", d: 1) == 1
// countOccurrences(s: "123", d: 2) == 0
func countOccurrences(s: String, d: Int) -> Int {
    return s.filter { $0 == String(d) }.count
}

// Return the number of occurrences of the digit d in the string s.
// countOccurrences(s: "123", d: 1) == 1
// countOccurrences(s: "123", d: 2) == 0
func countOccurrences(s: String, d: Int) -> Int {
    return s.filter { $0 == String(d) }.count
}

// Return the number of occurrences of the digit d in the string s.
// countOccurrences(s: "123", d: 1) == 1
// countOccurrences(s: "123", d: 2) == 0
func countOccurrences(s: String, d: Int) -> Int {
    return s.filter { $0 == String(d) }.count
}

// Return the number of occurrences of the digit d in the string s.
// countOccurrences(s: "123", d: 1) == 1
// countOccurrences(s: "123", d: 2) == 0
func countOccurrences(s: String, d: Int) -> Int {
    return s.filter { $0 == String(d) }.count
}

// Return the number of occurrences of the digit d in the string s.
// countOccurrences(s: "123", d: 1) == 1
// countOccurrences(s: "123", d: 2) == 0
func countOccurrences(s: String, d: Int) -> Int {
    return s.filter { $0 == String(d) }.count
}

// Return the number of occurrences of the digit d in the string s.
// countOccurrences(s: "123", d: 1) == 1
// countOccurrences(s: "123", d: 2) == 0
func countOccurrences(s: String, d: Int) -> Int {
    return s.filter { $0 == String(d) }.count
}

// Return the number of occurrences of the digit d in the string s.
// countOccurrences(s: "123", d: 1) == 1
// countOccurrences(s: "123", d: 2) == 0
func countOccurrences(s: String, d: Int) -> Int {
    return s.filter { $0 == String(d) }.count
}

// Return the number of occurrences of the digit d in the string s.
// countOccurrences(s: "123", d: 1) == 1
// countOccurrences(s: "123", d: 2) == 0
func countOccurrences(s: String, d: Int) -> Int {
    return s.filter { $0 == String(d) }.count
}

// Return the number of occurrences of the digit d in the string s.
// countOccurrences(s: "123", d: 1) == 1
// countOccurrences(s: "123", d: 2) == 0
func countOccurrences(s: String, d: Int) -> Int {
    return s.filter { $0 == String(d) }.count
}

// Return the number of occurrences of the digit d in the string s.
// countOccurrences(s: "123", d: 1) == 1
// countOccurrences(s: "123", d: 2) == 0
func countOccurrences(
return String(left + right) // no exact matches in call to initializer
return s.filter { $0 == String(d) }.count // binary operator '==' cannot be applied to operands of type 'String.Element' (aka 'Character') and 'String'

func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += char.asciiValue!
        }
    }
    return sum
}
```swift
// Task
// Write a function that takes a string as input and returns the sum of the upper characters only'
// ASCII codes.
// Examples:
// digitSum(s: "") == 0
// digitSum(s: "abAB") == 131
// digitSum(s: "abcCd") == 67
// digitSum(s: "helloE") == 69
// digitSum(s: "woArBld") == 131
// digitSum(s: "aAaaaXa") == 153
func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += char.asciiValue!
        }
    }
    return sum
}
<|file_separator|>
sum += char.asciiValue! // cannot convert value of type 'UInt8' to expected argument type 'Int'

func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
```swift
// Task
// Write a function that takes a string as input and returns the sum of the upper characters only'
// ASCII codes.
// Examples:
// digitSum(s: "") == 0
// digitSum(s: "abAB") == 131
// digitSum(s: "abcCd") == 67
// digitSum(s: "helloE") == 69
// digitSum(s: "woArBld") == 131
// digitSum(s: "aAaaaXa") == 153
func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
<|file_separator|>

func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
```swift
// Task
// Write a function that takes a string as input and returns the sum of the upper characters only'
// ASCII codes.
// Examples:
// digitSum(s: "") == 0
// digitSum(s: "abAB") == 131
// digitSum(s: "abcCd") == 67
// digitSum(s: "helloE") == 69
// digitSum(s: "woArBld") == 131
// digitSum(s: "aAaaaXa") == 153
func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
<|file_separator|>

func digitSum(s: String) -> Int {
    var sum = 0
    for i in s {
        if i.isUppercase {
            sum += Int(i.asciiValue!)
        }
    }
    return sum
}
```swift
// Task
// Write a function that takes a string as input and returns the sum of the upper characters only'
// ASCII codes.
// Examples:
// digitSum(s: "") == 0
// digitSum(s: "abAB") == 131
// digitSum(s: "abcCd") == 67
// digitSum(s: "helloE") == 69
// digitSum(s: "woArBld") == 131
// digitSum(s: "aAaaaXa") == 153
func digitSum(s: String) -> Int {
    var sum = 0
    for i in s {
        if i.isUppercase {
            sum += Int(i.asciiValue!)
        }
    }
    return sum
}
<|file_separator|>

func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
```swift
// Task
// Write a function that takes a string as input and returns the sum of the upper characters only'
// ASCII codes.
// Examples:
// digitSum(s: "") == 0
// digitSum(s: "abAB") == 131
// digitSum(s: "abcCd") == 67
// digitSum(s: "helloE") == 69
// digitSum(s: "woArBld") == 131
// digitSum(s: "aAaaaXa") == 153
func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
<|file_separator|>

func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
```swift
// Task
// Write a function that takes a string as input and returns the sum of the upper characters only'
// ASCII codes.
// Examples:
// digitSum(s: "") == 0
// digitSum(s: "abAB") == 131
// digitSum(s: "abcCd") == 67
// digitSum(s: "helloE") == 69
// digitSum(s: "woArBld") == 131
// digitSum(s: "aAaaaXa") == 153
func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
<|file_separator|>

func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
```swift
// Task
// Write a function that takes a string as input and returns the sum of the upper characters only'
// ASCII codes.
// Examples:
// digitSum(s: "") == 0
// digitSum(s: "abAB") == 131
// digitSum(s: "abcCd") == 67
// digitSum(s: "helloE") == 69
// digitSum(s: "woArBld") == 131
// digitSum(s: "aAaaaXa") == 153
func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
<|file_separator|>

func digitSum(s: String) -> Int {
    var sum = 0
    for i in s {
        if i.isUppercase {
            sum += Int(i.asciiValue!)
        }
    }
    return sum
}
```swift
// Task
// Write a function that takes a string as input and returns the sum of the upper characters only'
// ASCII codes.
// Examples:
// digitSum(s: "") == 0
// digitSum(s: "abAB") == 131
// digitSum(s: "abcCd") == 67
// digitSum(s: "helloE") == 69
// digitSum(s: "woArBld") == 131
// digitSum(s: "aAaaaXa") == 153
func digitSum(s: String) -> Int {
    var sum = 0
    for i in s {
        if i.isUppercase {
            sum += Int(i.asciiValue!)
        }
    }
    return sum
}
<|file_separator|>

func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
```swift
// Task
// Write a function that takes a string as input and returns the sum of the upper characters only'
// ASCII codes.
// Examples:
// digitSum(s: "") == 0
// digitSum(s: "abAB") == 131
// digitSum(s: "abcCd") == 67
// digitSum(s: "helloE") == 69
// digitSum(s: "woArBld") == 131
// digitSum(s: "aAaaaXa") == 153
func digitSum(s: String) -> Int {
    var sum = 0
    for char in s {
        if char.isUppercase {
            sum += Int(char.asciiValue!)
        }
    }
    return sum
}
<|file_separator|>

func digitSum(s: String) -> Int {
    var sum = 0
    for i in s {
        if i.isUppercase {
            sum += Int(i.asciiValue!)
        }
    }
    return sum
}
```swift
// Task
// Write a function that takes a string as input and returns the sum of the upper characters only'
// ASCII codes.
// Examples:
// digitSum(s: "") == 0
// digitSum(s: "abAB") == 131
// digitSum(s: "abcCd") == 67
// digitSum(s: "helloE") == 69
// digitSum(s: "woArBld") == 131
// digitSum(s: "aAaaaXa") == 153
func digitSum(s: String) -> Int {
    var sum = 0
    for i in s {
        if i.isUppercase {
            sum += Int(i.asciiValue!)
        }
    }
    return sum
}
<|file_separator|>

func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ").map { Int($0) ?? 0 }
    let apples = fruits[0]
    let oranges = fruits[1]
    let mango = n - (apples + oranges)
    return mango
}
```swift
// In this task, you will be given a string that represents a number of apples and oranges 
// that are distributed in a basket of fruit this basket contains 
// apples, oranges, and mango fruits. Given the string that represents the total number of 
// the oranges and apples and an integer that represent the total number of the fruits 
// in the basket return the number of the mango fruits in the basket.
// for examble:
// fruitDistribution(s: "5 apples and 6 oranges", n: 19) == 8
// fruitDistribution(s: "0 apples and 1 oranges", n: 3) == 2
// fruitDistribution(s: "2 apples and 3 oranges", n: 100) == 95
// fruitDistribution(s: "100 apples and 1 oranges", n: 120) == 19
func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ").map { Int($0) ?? 0 }
    let apples = fruits[0]
    let oranges = fruits[1]
    let mango = n - (apples + oranges)
    return mango
}
<|file_separator|>
 // XCTAssertTrue failed

func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ")
    let apples = Int(fruits[0]) ?? 0
    let oranges = Int(fruits[1]) ?? 0
    let mango = n - (apples + oranges)
    return mango
}
```swift
// In this task, you will be given a string that represents a number of apples and oranges 
// that are distributed in a basket of fruit this basket contains 
// apples, oranges, and mango fruits. Given the string that represents the total number of 
// the oranges and apples and an integer that represent the total number of the fruits 
// in the basket return the number of the mango fruits in the basket.
// for examble:
// fruitDistribution(s: "5 apples and 6 oranges", n: 19) == 8
// fruitDistribution(s: "0 apples and 1 oranges", n: 3) == 2
// fruitDistribution(s: "2 apples and 3 oranges", n: 100) == 95
// fruitDistribution(s: "100 apples and 1 oranges", n: 120) == 19
func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ")
    let apples = Int(fruits[0]) ?? 0
    let oranges = Int(fruits[1]) ?? 0
    let mango = n - (apples + oranges)
    return mango
}
<|file_separator|>
 // XCTAssertTrue failed

func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ")
    let apples = fruits[0].split(separator: " ")[1]
    let oranges = fruits[1].split(separator: " ")[1]
    let mango = n - (Int(apples)! + Int(oranges)!)
    return mango
}
```swift
// In this task, you will be given a string that represents a number of apples and oranges 
// that are distributed in a basket of fruit this basket contains 
// apples, oranges, and mango fruits. Given the string that represents the total number of 
// the oranges and apples and an integer that represent the total number of the fruits 
// in the basket return the number of the mango fruits in the basket.
// for examble:
// fruitDistribution(s: "5 apples and 6 oranges", n: 19) == 8
// fruitDistribution(s: "0 apples and 1 oranges", n: 3) == 2
// fruitDistribution(s: "2 apples and 3 oranges", n: 100) == 95
// fruitDistribution(s: "100 apples and 1 oranges", n: 120) == 19
func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ")
    let apples = fruits[0].split(separator: " ")[1]
    let oranges = fruits[1].split(separator: " ")[1]
    let mango = n - (Int(apples)! + Int(oranges)!)
    return mango
}
<|file_separator|>
 // Fatal error: Index out of range

func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ")
    let apples = fruits[0].split(separator: " ")[1]
    let oranges = fruits[1].split(separator: " ")[1]
    let totalFruits = Int(apples)! + Int(oranges)!
    return totalFruits - n
}
```swift
// In this task, you will be given a string that represents a number of apples and oranges 
// that are distributed in a basket of fruit this basket contains 
// apples, oranges, and mango fruits. Given the string that represents the total number of 
// the oranges and apples and an integer that represent the total number of the fruits 
// in the basket return the number of the mango fruits in the basket.
// for examble:
// fruitDistribution(s: "5 apples and 6 oranges", n: 19) == 8
// fruitDistribution(s: "0 apples and 1 oranges", n: 3) == 2
// fruitDistribution(s: "2 apples and 3 oranges", n: 100) == 95
// fruitDistribution(s: "100 apples and 1 oranges", n: 120) == 19
func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ")
    let apples = fruits[0].split(separator: " ")[1]
    let oranges = fruits[1].split(separator: " ")[1]
    let totalFruits = Int(apples)! + Int(oranges)!
    return totalFruits - n
}
<|file_separator|>
 // Fatal error: Index out of range

func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ")
    let apples = Int(fruits[0]) ?? 0
    let oranges = Int(fruits[1]) ?? 0
    let mango = n - (apples + oranges)
    return mango
}
```swift
// In this task, you will be given a string that represents a number of apples and oranges 
// that are distributed in a basket of fruit this basket contains 
// apples, oranges, and mango fruits. Given the string that represents the total number of 
// the oranges and apples and an integer that represent the total number of the fruits 
// in the basket return the number of the mango fruits in the basket.
// for examble:
// fruitDistribution(s: "5 apples and 6 oranges", n: 19) == 8
// fruitDistribution(s: "0 apples and 1 oranges", n: 3) == 2
// fruitDistribution(s: "2 apples and 3 oranges", n: 100) == 95
// fruitDistribution(s: "100 apples and 1 oranges", n: 120) == 19
func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ")
    let apples = Int(fruits[0]) ?? 0
    let oranges = Int(fruits[1]) ?? 0
    let mango = n - (apples + oranges)
    return mango
}
<|file_separator|>
 // XCTAssertTrue failed

func fruitDistribution(s: String, n: Int) -> Int {
    var count = 0
    let fruits = s.split(separator: " ")
    let apples = Int(fruits[0]) ?? 0
    let oranges = Int(fruits[1]) ?? 0
    let mango = n - (apples + oranges)
    if mango > 0 {
        count = mango
    }
    return count
}
```swift
// In this task, you will be given a string that represents a number of apples and oranges 
// that are distributed in a basket of fruit this basket contains 
// apples, oranges, and mango fruits. Given the string that represents the total number of 
// the oranges and apples and an integer that represent the total number of the fruits 
// in the basket return the number of the mango fruits in the basket.
// for examble:
// fruitDistribution(s: "5 apples and 6 oranges", n: 19) == 8
// fruitDistribution(s: "0 apples and 1 oranges", n: 3) == 2
// fruitDistribution(s: "2 apples and 3 oranges", n: 100) == 95
// fruitDistribution(s: "100 apples and 1 oranges", n: 120) == 19
func fruitDistribution(s: String, n: Int) -> Int {
    var count = 0
    let fruits = s.split(separator: " ")
    let apples = Int(fruits[0]) ?? 0
    let oranges = Int(fruits[1]) ?? 0
    let mango = n - (apples + oranges)
    if mango > 0 {
        count = mango
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ").map { Int($0)! }
    let apples = fruits[0]
    let oranges = fruits[1]
    let mango = n - apples - oranges
    return mango
}
```swift
// In this task, you will be given a string that represents a number of apples and oranges 
// that are distributed in a basket of fruit this basket contains 
// apples, oranges, and mango fruits. Given the string that represents the total number of 
// the oranges and apples and an integer that represent the total number of the fruits 
// in the basket return the number of the mango fruits in the basket.
// for examble:
// fruitDistribution(s: "5 apples and 6 oranges", n: 19) == 8
// fruitDistribution(s: "0 apples and 1 oranges", n: 3) == 2
// fruitDistribution(s: "2 apples and 3 oranges", n: 100) == 95
// fruitDistribution(s: "100 apples and 1 oranges", n: 120) == 19
func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ").map { Int($0)! }
    let apples = fruits[0]
    let oranges = fruits[1]
    let mango = n - apples - oranges
    return mango
}
<|file_separator|>
 // Fatal error: Unexpectedly found nil while unwrapping an Optional value

func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ").map { Int($0)! }
    let apples = fruits[0]
    let oranges = fruits[1]
    let mango = n - apples - oranges
    return mango
}
```swift
// In this task, you will be given a string that represents a number of apples and oranges 
// that are distributed in a basket of fruit this basket contains 
// apples, oranges, and mango fruits. Given the string that represents the total number of 
// the oranges and apples and an integer that represent the total number of the fruits 
// in the basket return the number of the mango fruits in the basket.
// for examble:
// fruitDistribution(s: "5 apples and 6 oranges", n: 19) == 8
// fruitDistribution(s: "0 apples and 1 oranges", n: 3) == 2
// fruitDistribution(s: "2 apples and 3 oranges", n: 100) == 95
// fruitDistribution(s: "100 apples and 1 oranges", n: 120) == 19
func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ").map { Int($0)! }
    let apples = fruits[0]
    let oranges = fruits[1]
    let mango = n - apples - oranges
    return mango
}
<|file_separator|>
 // Fatal error: Unexpectedly found nil while unwrapping an Optional value

func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ").map { Int($0) ?? 0 }
    let apples = fruits[0]
    let oranges = fruits[1]
    let mangoFruits = n - (apples + oranges)
    return mangoFruits
}
```swift
// In this task, you will be given a string that represents a number of apples and oranges 
// that are distributed in a basket of fruit this basket contains 
// apples, oranges, and mango fruits. Given the string that represents the total number of 
// the oranges and apples and an integer that represent the total number of the fruits 
// in the basket return the number of the mango fruits in the basket.
// for examble:
// fruitDistribution(s: "5 apples and 6 oranges", n: 19) == 8
// fruitDistribution(s: "0 apples and 1 oranges", n: 3) == 2
// fruitDistribution(s: "2 apples and 3 oranges", n: 100) == 95
// fruitDistribution(s: "100 apples and 1 oranges", n: 120) == 19
func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ").map { Int($0) ?? 0 }
    let apples = fruits[0]
    let oranges = fruits[1]
    let mangoFruits = n - (apples + oranges)
    return mangoFruits
}
<|file_separator|>
 // XCTAssertTrue failed

func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ")
    let apples = fruits[0].split(separator: " ")[1]
    let oranges = fruits[1].split(separator: " ")[1]
    let mango = n - (Int(apples)! + Int(oranges)!)
    return mango
}
```swift
// In this task, you will be given a string that represents a number of apples and oranges 
// that are distributed in a basket of fruit this basket contains 
// apples, oranges, and mango fruits. Given the string that represents the total number of 
// the oranges and apples and an integer that represent the total number of the fruits 
// in the basket return the number of the mango fruits in the basket.
// for examble:
// fruitDistribution(s: "5 apples and 6 oranges", n: 19) == 8
// fruitDistribution(s: "0 apples and 1 oranges", n: 3) == 2
// fruitDistribution(s: "2 apples and 3 oranges", n: 100) == 95
// fruitDistribution(s: "100 apples and 1 oranges", n: 120) == 19
func fruitDistribution(s: String, n: Int) -> Int {
    let fruits = s.split(separator: " ")
    let apples = fruits[0].split(separator: " ")[1]
    let oranges = fruits[1].split(separator: " ")[1]
    let mango = n - (Int(apples)! + Int(oranges)!)
    return mango
}
<|file_separator|>
 // Fatal error: Index out of range

func pluck(arr: [Int]) -> [Int] {
    var even = [Int]()
    var odd = [Int]()
    for i in arr {
        if i % 2 == 0 {
            even.append(i)
        } else {
            odd.append(i)
        }
    }
    if even.count == 0 {
        return []
    }
    if odd.count == 0 {
        return [even[0], 0]
    }
    if even[0] < odd[0] {
        return [even[0], 0]
    } else {
        return [odd[0], 1]
    }
}
```swift
// "Given an array representing a branch of a tree that has non-negative integer nodes
// your task is to pluck one of the nodes and return it.
// The plucked node should be the node with the smallest even value.
// If multiple nodes with the same smallest even value are found return the node that has smallest index.
// The plucked node should be returned in an array, [ smalest_value, its index ],
// If there are no even values or the given array is empty, return [].
// Example 1:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 2:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 3:
// Example 4:
// Explanation: 0 is the smallest value, but  there are two zeros,
// so we will choose the first zero, which has the smallest index.
// Constraints:
// * 1 <= nodes.length <= 10000
// * 0 <= node.value
// pluck(arr: [4, 2, 3]) == [2, 1]
// pluck(arr: [1, 2, 3]) == [2, 1]
// pluck(arr: [] as [Int]) == [] as [Int]
// pluck(arr: [5, 0, 3, 0, 4, 2]) == [0, 1]
func pluck(arr: [Int]) -> [Int] {
    var even = [Int]()
    var odd = [Int]()
    for i in arr {
        if i % 2 == 0 {
            even.append(i)
        } else {
            odd.append(i)
        }
    }
    if even.count == 0 {
        return []
    }
    if odd.count == 0 {
        return [even[0], 0]
    }
    if even[0] < odd[0] {
        return [even[0], 0]
    } else {
        return [odd[0], 1]
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func pluck(arr: [Int]) -> [Int] {
    var smallestEven = Int.max
    var smallestEvenIndex = Int.max
    for (index, value) in arr.enumerated() {
        if value % 2 == 0 && value < smallestEven {
            smallestEven = value
            smallestEvenIndex = index
        }
    }
    return [smallestEven, smallestEvenIndex]
}
```swift
// "Given an array representing a branch of a tree that has non-negative integer nodes
// your task is to pluck one of the nodes and return it.
// The plucked node should be the node with the smallest even value.
// If multiple nodes with the same smallest even value are found return the node that has smallest index.
// The plucked node should be returned in an array, [ smalest_value, its index ],
// If there are no even values or the given array is empty, return [].
// Example 1:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 2:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 3:
// Example 4:
// Explanation: 0 is the smallest value, but  there are two zeros,
// so we will choose the first zero, which has the smallest index.
// Constraints:
// * 1 <= nodes.length <= 10000
// * 0 <= node.value
// pluck(arr: [4, 2, 3]) == [2, 1]
// pluck(arr: [1, 2, 3]) == [2, 1]
// pluck(arr: [] as [Int]) == [] as [Int]
// pluck(arr: [5, 0, 3, 0, 4, 2]) == [0, 1]
func pluck(arr: [Int]) -> [Int] {
    var smallestEven = Int.max
    var smallestEvenIndex = Int.max
    for (index, value) in arr.enumerated() {
        if value % 2 == 0 && value < smallestEven {
            smallestEven = value
            smallestEvenIndex = index
        }
    }
    return [smallestEven, smallestEvenIndex]
}
<|file_separator|>
 // XCTAssertTrue failed

func pluck(arr: [Int]) -> [Int] {
    var result = [Int]()
    var smallest = Int.max
    var smallestIndex = Int.max
    for (index, value) in arr.enumerated() {
        if value % 2 == 0 && value < smallest {
            smallest = value
            smallestIndex = index
        }
    }
    if smallestIndex != Int.max {
        result.append(smallest)
        result.append(smallestIndex)
    }
    return result
}
```swift
// "Given an array representing a branch of a tree that has non-negative integer nodes
// your task is to pluck one of the nodes and return it.
// The plucked node should be the node with the smallest even value.
// If multiple nodes with the same smallest even value are found return the node that has smallest index.
// The plucked node should be returned in an array, [ smalest_value, its index ],
// If there are no even values or the given array is empty, return [].
// Example 1:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 2:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 3:
// Example 4:
// Explanation: 0 is the smallest value, but  there are two zeros,
// so we will choose the first zero, which has the smallest index.
// Constraints:
// * 1 <= nodes.length <= 10000
// * 0 <= node.value
// pluck(arr: [4, 2, 3]) == [2, 1]
// pluck(arr: [1, 2, 3]) == [2, 1]
// pluck(arr: [] as [Int]) == [] as [Int]
// pluck(arr: [5, 0, 3, 0, 4, 2]) == [0, 1]
func pluck(arr: [Int]) -> [Int] {
    var result = [Int]()
    var smallest = Int.max
    var smallestIndex = Int.max
    for (index, value) in arr.enumerated() {
        if value % 2 == 0 && value < smallest {
            smallest = value
            smallestIndex = index
        }
    }
    if smallestIndex != Int.max {
        result.append(smallest)
        result.append(smallestIndex)
    }
    return result
}
<|file_separator|>

func pluck(arr: [Int]) -> [Int] {
    var smallestEven = Int.max
    var smallestEvenIndex = Int.max
    var smallestEvenValue = Int.max
    var smallestEvenIndexValue = Int.max
    for (index, value) in arr.enumerated() {
        if value % 2 == 0 && value < smallestEven {
            smallestEven = value
            smallestEvenIndex = index
        }
    }
    return [smallestEven, smallestEvenIndex]
}
```swift
// "Given an array representing a branch of a tree that has non-negative integer nodes
// your task is to pluck one of the nodes and return it.
// The plucked node should be the node with the smallest even value.
// If multiple nodes with the same smallest even value are found return the node that has smallest index.
// The plucked node should be returned in an array, [ smalest_value, its index ],
// If there are no even values or the given array is empty, return [].
// Example 1:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 2:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 3:
// Example 4:
// Explanation: 0 is the smallest value, but  there are two zeros,
// so we will choose the first zero, which has the smallest index.
// Constraints:
// * 1 <= nodes.length <= 10000
// * 0 <= node.value
// pluck(arr: [4, 2, 3]) == [2, 1]
// pluck(arr: [1, 2, 3]) == [2, 1]
// pluck(arr: [] as [Int]) == [] as [Int]
// pluck(arr: [5, 0, 3, 0, 4, 2]) == [0, 1]
func pluck(arr: [Int]) -> [Int] {
    var smallestEven = Int.max
    var smallestEvenIndex = Int.max
    var smallestEvenValue = Int.max
    var smallestEvenIndexValue = Int.max
    for (index, value) in arr.enumerated() {
        if value % 2 == 0 && value < smallestEven {
            smallestEven = value
            smallestEvenIndex = index
        }
    }
    return [smallestEven, smallestEvenIndex]
}
<|file_separator|>
var smallestEvenValue = Int.max // initialization of variable 'smallestEvenValue' was never used; consider replacing with assignment to '_' or removing it
var smallestEvenIndexValue = Int.max // initialization of variable 'smallestEvenIndexValue' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func pluck(arr: [Int]) -> [Int] {
    var smallestEven = 0
    var smallestEvenIndex = 0
    var smallestOdd = 0
    var smallestOddIndex = 0
    var smallestEvenIndex = 0
    var smallestOddIndex = 0
    for i in 0..<arr.count {
        if arr[i] % 2 == 0 {
            if arr[i] < smallestEven {
                smallestEven = arr[i]
                smallestEvenIndex = i
            }
        } else {
            if arr[i] < smallestOdd {
                smallestOdd = arr[i]
                smallestOddIndex = i
            }
        }
    }
    if smallestEvenIndex < smallestOddIndex {
        return [smallestEven, smallestEvenIndex]
    } else {
        return [smallestOdd, smallestOddIndex]
    }
}
```swift
// "Given an array representing a branch of a tree that has non-negative integer nodes
// your task is to pluck one of the nodes and return it.
// The plucked node should be the node with the smallest even value.
// If multiple nodes with the same smallest even value are found return the node that has smallest index.
// The plucked node should be returned in an array, [ smalest_value, its index ],
// If there are no even values or the given array is empty, return [].
// Example 1:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 2:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 3:
// Example 4:
// Explanation: 0 is the smallest value, but  there are two zeros,
// so we will choose the first zero, which has the smallest index.
// Constraints:
// * 1 <= nodes.length <= 10000
// * 0 <= node.value
// pluck(arr: [4, 2, 3]) == [2, 1]
// pluck(arr: [1, 2, 3]) == [2, 1]
// pluck(arr: [] as [Int]) == [] as [Int]
// pluck(arr: [5, 0, 3, 0, 4, 2]) == [0, 1]
func pluck(arr: [Int]) -> [Int] {
    var smallestEven = 0
    var smallestEvenIndex = 0
    var smallestOdd = 0
    var smallestOddIndex = 0
    var smallestEvenIndex = 0
    var smallestOddIndex = 0
    for i in 0..<arr.count {
        if arr[i] % 2 == 0 {
            if arr[i] < smallestEven {
                smallestEven = arr[i]
                smallestEvenIndex = i
            }
        } else {
            if arr[i] < smallestOdd {
                smallestOdd = arr[i]
                smallestOddIndex = i
            }
        }
    }
    if smallestEvenIndex < smallestOddIndex {
        return [smallestEven, smallestEvenIndex]
    } else {
        return [smallestOdd, smallestOddIndex]
    }
}
<|file_separator|>
var smallestEvenIndex = 0 // invalid redeclaration of 'smallestEvenIndex'
var smallestOddIndex = 0 // invalid redeclaration of 'smallestOddIndex'

func pluck(arr: [Int]) -> [Int] {
    var even = arr.filter { $0 % 2 == 0 }
    var odd = arr.filter { $0 % 2 != 0 }
    if even.count == 0 {
        return []
    }
    if even.count == 1 {
        return [even[0], 0]
    }
    if odd.count == 1 {
        return [odd[0], 1]
    }
    var smallest = even[0]
    var smallestIndex = 0
    for i in 0..<even.count {
        if even[i] < smallest {
            smallest = even[i]
            smallestIndex = i
        }
    }
    return [smallest, smallestIndex]
}
```swift
// "Given an array representing a branch of a tree that has non-negative integer nodes
// your task is to pluck one of the nodes and return it.
// The plucked node should be the node with the smallest even value.
// If multiple nodes with the same smallest even value are found return the node that has smallest index.
// The plucked node should be returned in an array, [ smalest_value, its index ],
// If there are no even values or the given array is empty, return [].
// Example 1:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 2:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 3:
// Example 4:
// Explanation: 0 is the smallest value, but  there are two zeros,
// so we will choose the first zero, which has the smallest index.
// Constraints:
// * 1 <= nodes.length <= 10000
// * 0 <= node.value
// pluck(arr: [4, 2, 3]) == [2, 1]
// pluck(arr: [1, 2, 3]) == [2, 1]
// pluck(arr: [] as [Int]) == [] as [Int]
// pluck(arr: [5, 0, 3, 0, 4, 2]) == [0, 1]
func pluck(arr: [Int]) -> [Int] {
    var even = arr.filter { $0 % 2 == 0 }
    var odd = arr.filter { $0 % 2 != 0 }
    if even.count == 0 {
        return []
    }
    if even.count == 1 {
        return [even[0], 0]
    }
    if odd.count == 1 {
        return [odd[0], 1]
    }
    var smallest = even[0]
    var smallestIndex = 0
    for i in 0..<even.count {
        if even[i] < smallest {
            smallest = even[i]
            smallestIndex = i
        }
    }
    return [smallest, smallestIndex]
}
<|file_separator|>
var even = arr.filter { $0 % 2 == 0 } // variable 'even' was never mutated; consider changing to 'let' constant
var odd = arr.filter { $0 % 2 != 0 } // variable 'odd' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func pluck(arr: [Int]) -> [Int] {
    var evens = [Int]()
    var odds = [Int]()
    for i in arr {
        if i % 2 == 0 {
            evens.append(i)
        } else {
            odds.append(i)
        }
    }
    if evens.count == 0 {
        return []
    }
    if odds.count == 0 {
        return [evens[0], 0]
    }
    if evens[0] < odds[0] {
        return [evens[0], 0]
    } else {
        return [odds[0], 1]
    }
}
```swift
// "Given an array representing a branch of a tree that has non-negative integer nodes
// your task is to pluck one of the nodes and return it.
// The plucked node should be the node with the smallest even value.
// If multiple nodes with the same smallest even value are found return the node that has smallest index.
// The plucked node should be returned in an array, [ smalest_value, its index ],
// If there are no even values or the given array is empty, return [].
// Example 1:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 2:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 3:
// Example 4:
// Explanation: 0 is the smallest value, but  there are two zeros,
// so we will choose the first zero, which has the smallest index.
// Constraints:
// * 1 <= nodes.length <= 10000
// * 0 <= node.value
// pluck(arr: [4, 2, 3]) == [2, 1]
// pluck(arr: [1, 2, 3]) == [2, 1]
// pluck(arr: [] as [Int]) == [] as [Int]
// pluck(arr: [5, 0, 3, 0, 4, 2]) == [0, 1]
func pluck(arr: [Int]) -> [Int] {
    var evens = [Int]()
    var odds = [Int]()
    for i in arr {
        if i % 2 == 0 {
            evens.append(i)
        } else {
            odds.append(i)
        }
    }
    if evens.count == 0 {
        return []
    }
    if odds.count == 0 {
        return [evens[0], 0]
    }
    if evens[0] < odds[0] {
        return [evens[0], 0]
    } else {
        return [odds[0], 1]
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func pluck(arr: [Int]) -> [Int] {
    var result = [Int]()
    var even = [Int]()
    var odd = [Int]()
    for i in 0..<arr.count {
        if arr[i] % 2 == 0 {
            even.append(arr[i])
        } else {
            odd.append(arr[i])
        }
    }
    if even.count == 0 {
        return result
    }
    if odd.count == 0 {
        return even
    }
    if even.count == 1 {
        return even
    }
    if odd.count == 1 {
        return odd
    }
    if even[0] < odd[0] {
        return even
    } else {
        return odd
    }
}
```swift
// "Given an array representing a branch of a tree that has non-negative integer nodes
// your task is to pluck one of the nodes and return it.
// The plucked node should be the node with the smallest even value.
// If multiple nodes with the same smallest even value are found return the node that has smallest index.
// The plucked node should be returned in an array, [ smalest_value, its index ],
// If there are no even values or the given array is empty, return [].
// Example 1:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 2:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 3:
// Example 4:
// Explanation: 0 is the smallest value, but  there are two zeros,
// so we will choose the first zero, which has the smallest index.
// Constraints:
// * 1 <= nodes.length <= 10000
// * 0 <= node.value
// pluck(arr: [4, 2, 3]) == [2, 1]
// pluck(arr: [1, 2, 3]) == [2, 1]
// pluck(arr: [] as [Int]) == [] as [Int]
// pluck(arr: [5, 0, 3, 0, 4, 2]) == [0, 1]
func pluck(arr: [Int]) -> [Int] {
    var result = [Int]()
    var even = [Int]()
    var odd = [Int]()
    for i in 0..<arr.count {
        if arr[i] % 2 == 0 {
            even.append(arr[i])
        } else {
            odd.append(arr[i])
        }
    }
    if even.count == 0 {
        return result
    }
    if odd.count == 0 {
        return even
    }
    if even.count == 1 {
        return even
    }
    if odd.count == 1 {
        return odd
    }
    if even[0] < odd[0] {
        return even
    } else {
        return odd
    }
}
<|file_separator|>
var result = [Int]() // variable 'result' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func pluck(arr: [Int]) -> [Int] {
    var result = [Int]()
    var min = Int.max
    var index = 0
    for i in 0..<arr.count {
        if arr[i] % 2 == 0 && arr[i] < min {
            min = arr[i]
            index = i
        }
    }
    result.append(min)
    result.append(index)
    return result
}
```swift
// "Given an array representing a branch of a tree that has non-negative integer nodes
// your task is to pluck one of the nodes and return it.
// The plucked node should be the node with the smallest even value.
// If multiple nodes with the same smallest even value are found return the node that has smallest index.
// The plucked node should be returned in an array, [ smalest_value, its index ],
// If there are no even values or the given array is empty, return [].
// Example 1:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 2:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 3:
// Example 4:
// Explanation: 0 is the smallest value, but  there are two zeros,
// so we will choose the first zero, which has the smallest index.
// Constraints:
// * 1 <= nodes.length <= 10000
// * 0 <= node.value
// pluck(arr: [4, 2, 3]) == [2, 1]
// pluck(arr: [1, 2, 3]) == [2, 1]
// pluck(arr: [] as [Int]) == [] as [Int]
// pluck(arr: [5, 0, 3, 0, 4, 2]) == [0, 1]
func pluck(arr: [Int]) -> [Int] {
    var result = [Int]()
    var min = Int.max
    var index = 0
    for i in 0..<arr.count {
        if arr[i] % 2 == 0 && arr[i] < min {
            min = arr[i]
            index = i
        }
    }
    result.append(min)
    result.append(index)
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func pluck(arr: [Int]) -> [Int] {
    var smallestEven = Int.max
    var smallestIndex = Int.max
    var smallestEvenIndex = Int.max
    for (index, value) in arr.enumerated() {
        if value % 2 == 0 && value < smallestEven {
            smallestEven = value
            smallestIndex = index
        }
    }
    return [smallestEven, smallestIndex]
}
```swift
// "Given an array representing a branch of a tree that has non-negative integer nodes
// your task is to pluck one of the nodes and return it.
// The plucked node should be the node with the smallest even value.
// If multiple nodes with the same smallest even value are found return the node that has smallest index.
// The plucked node should be returned in an array, [ smalest_value, its index ],
// If there are no even values or the given array is empty, return [].
// Example 1:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 2:
// Explanation: 2 has the smallest even value, and 2 has the smallest index.
// Example 3:
// Example 4:
// Explanation: 0 is the smallest value, but  there are two zeros,
// so we will choose the first zero, which has the smallest index.
// Constraints:
// * 1 <= nodes.length <= 10000
// * 0 <= node.value
// pluck(arr: [4, 2, 3]) == [2, 1]
// pluck(arr: [1, 2, 3]) == [2, 1]
// pluck(arr: [] as [Int]) == [] as [Int]
// pluck(arr: [5, 0, 3, 0, 4, 2]) == [0, 1]
func pluck(arr: [Int]) -> [Int] {
    var smallestEven = Int.max
    var smallestIndex = Int.max
    var smallestEvenIndex = Int.max
    for (index, value) in arr.enumerated() {
        if value % 2 == 0 && value < smallestEven {
            smallestEven = value
            smallestIndex = index
        }
    }
    return [smallestEven, smallestIndex]
}
<|file_separator|>
var smallestEvenIndex = Int.max // initialization of variable 'smallestEvenIndex' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func search(lst: [Int]) -> Int {
    var freq = [Int: Int]()
    for i in lst {
        freq[i] = (freq[i] ?? 0) + 1
    }
    for i in lst {
        if freq[i] ?? 0 >= i {
            return i
        }
    }
    return -1
}
```swift
// You are given a non-empty array of positive integers. Return the greatest integer that is greater than 
// zero, and has a frequency greater than or equal to the value of the integer itself. 
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Examples:
// search(lst: [4, 1, 2, 2, 3, 1]) == 2
// search(lst: [1, 2, 2, 3, 3, 3, 4, 4, 4]) == 3
// search(lst: [5, 5, 4, 4, 4]) == -1
func search(lst: [Int]) -> Int {
    var freq = [Int: Int]()
    for i in lst {
        freq[i] = (freq[i] ?? 0) + 1
    }
    for i in lst {
        if freq[i] ?? 0 >= i {
            return i
        }
    }
    return -1
}
<|file_separator|>
 // XCTAssertTrue failed

func search(lst: [Int]) -> Int {
    var max = 0
    var maxFreq = 0
    var maxInt = 0
    for i in 0..<lst.count {
        var freq = 0
        for j in 0..<lst.count {
            if lst[i] == lst[j] {
                freq += 1
            }
        }
        if freq > maxFreq {
            maxFreq = freq
            maxInt = lst[i]
        }
    }
    if maxFreq >= lst[lst.count - 1] {
        return maxInt
    } else {
        return -1
    }
}
```swift
// You are given a non-empty array of positive integers. Return the greatest integer that is greater than 
// zero, and has a frequency greater than or equal to the value of the integer itself. 
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Examples:
// search(lst: [4, 1, 2, 2, 3, 1]) == 2
// search(lst: [1, 2, 2, 3, 3, 3, 4, 4, 4]) == 3
// search(lst: [5, 5, 4, 4, 4]) == -1
func search(lst: [Int]) -> Int {
    var max = 0
    var maxFreq = 0
    var maxInt = 0
    for i in 0..<lst.count {
        var freq = 0
        for j in 0..<lst.count {
            if lst[i] == lst[j] {
                freq += 1
            }
        }
        if freq > maxFreq {
            maxFreq = freq
            maxInt = lst[i]
        }
    }
    if maxFreq >= lst[lst.count - 1] {
        return maxInt
    } else {
        return -1
    }
}
<|file_separator|>
var max = 0 // initialization of variable 'max' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func search(lst: [Int]) -> Int {
    var max = 0
    var maxNum = 0
    for i in 0..<lst.count {
        if lst[i] > max {
            max = lst[i]
            maxNum = i
        }
    }
    if lst.filter({ $0 == max }).count >= max {
        return max
    } else {
        return -1
    }
}
```swift
// You are given a non-empty array of positive integers. Return the greatest integer that is greater than 
// zero, and has a frequency greater than or equal to the value of the integer itself. 
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Examples:
// search(lst: [4, 1, 2, 2, 3, 1]) == 2
// search(lst: [1, 2, 2, 3, 3, 3, 4, 4, 4]) == 3
// search(lst: [5, 5, 4, 4, 4]) == -1
func search(lst: [Int]) -> Int {
    var max = 0
    var maxNum = 0
    for i in 0..<lst.count {
        if lst[i] > max {
            max = lst[i]
            maxNum = i
        }
    }
    if lst.filter({ $0 == max }).count >= max {
        return max
    } else {
        return -1
    }
}
<|file_separator|>
var maxNum = 0 // variable 'maxNum' was written to, but never read
 // XCTAssertTrue failed

func search(lst: [Int]) -> Int {
    var freq = [Int: Int]()
    for i in lst {
        freq[i] = (freq[i] ?? 0) + 1
    }
    var max = -1
    for (key, value) in freq {
        if key > max && value >= key {
            max = key
        }
    }
    return max
}
```swift
// You are given a non-empty array of positive integers. Return the greatest integer that is greater than 
// zero, and has a frequency greater than or equal to the value of the integer itself. 
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Examples:
// search(lst: [4, 1, 2, 2, 3, 1]) == 2
// search(lst: [1, 2, 2, 3, 3, 3, 4, 4, 4]) == 3
// search(lst: [5, 5, 4, 4, 4]) == -1
func search(lst: [Int]) -> Int {
    var freq = [Int: Int]()
    for i in lst {
        freq[i] = (freq[i] ?? 0) + 1
    }
    var max = -1
    for (key, value) in freq {
        if key > max && value >= key {
            max = key
        }
    }
    return max
}

// You are given a non-empty array of integers. Return the greatest integer that is greater than 
// zero, and has a frequency greater than or equal to the value of the integer itself. 
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Examples:
// search(lst: [4, 1, 2, 2, 3, 1]) == 2
// search(lst: [1, 2, 2, 3, 3, 3, 4, 4, 4]) == 3
// search(lst: [5, 5, 4, 4, 4]) == -1
func search(lst: [Int]) -> Int {
    var freq = [Int: Int]()
    for i in lst {
        freq[i] = (freq[i] ?? 0) + 1
    }
    var max = -1
    for (key, value) in freq {
        if key > max && value >= key {
            max = key
        }
    }
    return max
}
<|file_separator|>

func search(lst: [Int]) -> Int {
    var dict = [Int: Int]()
    for i in lst {
        if let count = dict[i] {
            dict[i] = count + 1
        } else {
            dict[i] = 1
        }
    }
    var max = 0
    var result = -1
    for (key, value) in dict {
        if value >= key {
            if value > max {
                max = value
                result = key
            }
        }
    }
    return result
}
```swift
// You are given a non-empty array of positive integers. Return the greatest integer that is greater than 
// zero, and has a frequency greater than or equal to the value of the integer itself. 
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Examples:
// search(lst: [4, 1, 2, 2, 3, 1]) == 2
// search(lst: [1, 2, 2, 3, 3, 3, 4, 4, 4]) == 3
// search(lst: [5, 5, 4, 4, 4]) == -1
func search(lst: [Int]) -> Int {
    var dict = [Int: Int]()
    for i in lst {
        if let count = dict[i] {
            dict[i] = count + 1
        } else {
            dict[i] = 1
        }
    }
    var max = 0
    var result = -1
    for (key, value) in dict {
        if value >= key {
            if value > max {
                max = value
                result = key
            }
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func search(lst: [Int]) -> Int {
    var max = -1
    var maxCount = 0
    var count = 0
    for i in 0..<lst.count {
        if lst[i] == max {
            count += 1
        } else if lst[i] > max {
            max = lst[i]
            maxCount = 1
        } else {
            count = 1
        }
        if count > maxCount {
            maxCount = count
        }
    }
    return maxCount >= lst[max] ? max : -1
}
```swift
// You are given a non-empty array of positive integers. Return the greatest integer that is greater than 
// zero, and has a frequency greater than or equal to the value of the integer itself. 
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Examples:
// search(lst: [4, 1, 2, 2, 3, 1]) == 2
// search(lst: [1, 2, 2, 3, 3, 3, 4, 4, 4]) == 3
// search(lst: [5, 5, 4, 4, 4]) == -1
func search(lst: [Int]) -> Int {
    var max = -1
    var maxCount = 0
    var count = 0
    for i in 0..<lst.count {
        if lst[i] == max {
            count += 1
        } else if lst[i] > max {
            max = lst[i]
            maxCount = 1
        } else {
            count = 1
        }
        if count > maxCount {
            maxCount = count
        }
    }
    return maxCount >= lst[max] ? max : -1
}
<|file_separator|>
 // Fatal error: Index out of range

func search(lst: [Int]) -> Int {
    var max = -1
    var maxFreq = -1
    var freq = [Int: Int]()
    for i in 0..<lst.count {
        if freq[lst[i]] == nil {
            freq[lst[i]] = 1
        } else {
            freq[lst[i]] = freq[lst[i]]! + 1
        }
        if freq[lst[i]]! > maxFreq {
            max = lst[i]
            maxFreq = freq[lst[i]]!
        }
    }
    if maxFreq >= lst[0] {
        return max
    }
    return -1
}
```swift
// You are given a non-empty array of positive integers. Return the greatest integer that is greater than 
// zero, and has a frequency greater than or equal to the value of the integer itself. 
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Examples:
// search(lst: [4, 1, 2, 2, 3, 1]) == 2
// search(lst: [1, 2, 2, 3, 3, 3, 4, 4, 4]) == 3
// search(lst: [5, 5, 4, 4, 4]) == -1
func search(lst: [Int]) -> Int {
    var max = -1
    var maxFreq = -1
    var freq = [Int: Int]()
    for i in 0..<lst.count {
        if freq[lst[i]] == nil {
            freq[lst[i]] = 1
        } else {
            freq[lst[i]] = freq[lst[i]]! + 1
        }
        if freq[lst[i]]! > maxFreq {
            max = lst[i]
            maxFreq = freq[lst[i]]!
        }
    }
    if maxFreq >= lst[0] {
        return max
    }
    return -1
}
<|file_separator|>
 // XCTAssertTrue failed

func search(lst: [Int]) -> Int {
    var dict = [Int: Int]()
    for i in lst {
        if let count = dict[i] {
            dict[i] = count + 1
        } else {
            dict[i] = 1
        }
    }
    var max = -1
    for (key, value) in dict {
        if value >= key && value > max {
            max = value
        }
    }
    return max == -1 ? -1 : max
}
```swift
// You are given a non-empty array of positive integers. Return the greatest integer that is greater than 
// zero, and has a frequency greater than or equal to the value of the integer itself. 
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Examples:
// search(lst: [4, 1, 2, 2, 3, 1]) == 2
// search(lst: [1, 2, 2, 3, 3, 3, 4, 4, 4]) == 3
// search(lst: [5, 5, 4, 4, 4]) == -1
func search(lst: [Int]) -> Int {
    var dict = [Int: Int]()
    for i in lst {
        if let count = dict[i] {
            dict[i] = count + 1
        } else {
            dict[i] = 1
        }
    }
    var max = -1
    for (key, value) in dict {
        if value >= key && value > max {
            max = value
        }
    }
    return max == -1 ? -1 : max
}
<|file_separator|>
 // XCTAssertTrue failed

func search(lst: [Int]) -> Int {
    var max = -1
    var freq = 0
    var maxFreq = 0
    for i in 0..<lst.count {
        if lst[i] > max {
            max = lst[i]
            freq = 1
        } else if lst[i] == max {
            freq += 1
            if freq > maxFreq {
                maxFreq = freq
            }
        }
    }
    if maxFreq >= max {
        return max
    }
    return -1
}
```swift
// You are given a non-empty array of positive integers. Return the greatest integer that is greater than 
// zero, and has a frequency greater than or equal to the value of the integer itself. 
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Examples:
// search(lst: [4, 1, 2, 2, 3, 1]) == 2
// search(lst: [1, 2, 2, 3, 3, 3, 4, 4, 4]) == 3
// search(lst: [5, 5, 4, 4, 4]) == -1
func search(lst: [Int]) -> Int {
    var max = -1
    var freq = 0
    var maxFreq = 0
    for i in 0..<lst.count {
        if lst[i] > max {
            max = lst[i]
            freq = 1
        } else if lst[i] == max {
            freq += 1
            if freq > maxFreq {
                maxFreq = freq
            }
        }
    }
    if maxFreq >= max {
        return max
    }
    return -1
}
<|file_separator|>
 // XCTAssertTrue failed

func search(lst: [Int]) -> Int {
    var max = -1
    var maxFreq = 0
    for i in 0..<lst.count {
        var freq = 0
        for j in 0..<lst.count {
            if lst[i] == lst[j] {
                freq += 1
            }
        }
        if freq > maxFreq {
            maxFreq = freq
            max = lst[i]
        }
    }
    if maxFreq >= max {
        return max
    }
    return -1
}
```swift
// You are given a non-empty array of positive integers. Return the greatest integer that is greater than 
// zero, and has a frequency greater than or equal to the value of the integer itself. 
// The frequency of an integer is the number of times it appears in the array.
// If no such a value exist, return -1.
// Examples:
// search(lst: [4, 1, 2, 2, 3, 1]) == 2
// search(lst: [1, 2, 2, 3, 3, 3, 4, 4, 4]) == 3
// search(lst: [5, 5, 4, 4, 4]) == -1
func search(lst: [Int]) -> Int {
    var max = -1
    var maxFreq = 0
    for i in 0..<lst.count {
        var freq = 0
        for j in 0..<lst.count {
            if lst[i] == lst[j] {
                freq += 1
            }
        }
        if freq > maxFreq {
            maxFreq = freq
            max = lst[i]
        }
    }
    if maxFreq >= max {
        return max
    }
    return -1
}
<|file_separator|>
 // XCTAssertTrue failed

func strangeSortList(lst: [Int]) -> [Int] {
    var result = [Int]()
    var min = lst.min()!
    var max = lst.max()!
    
    while lst.count > 0 {
        for i in 0..<lst.count {
            if lst[i] == min {
                result.append(min)
                lst.remove(at: i)
                min = lst.min()!
                break
            }
        }
        for i in 0..<lst.count {
            if lst[i] == max {
                result.append(max)
                lst.remove(at: i)
                max = lst.max()!
                break
            }
        }
    }
    return result
}
```swift
// Given array of integers, return array in strange order.
// Strange sorting, is when you start with the minimum value,
// then maximum of the remaining integers, then minimum and so on.
// Examples:
// strangeSortList(lst: [1, 2, 3, 4]) == [1, 4, 2, 3]
// strangeSortList(lst: [5, 5, 5, 5]) == [5, 5, 5, 5]
// strangeSortList(lst: [] as [Int]) == [] as [Int]
func strangeSortList(lst: [Int]) -> [Int] {
    var result = [Int]()
    var min = lst.min()!
    var max = lst.max()!
    
    while lst.count > 0 {
        for i in 0..<lst.count {
            if lst[i] == min {
                result.append(min)
                lst.remove(at: i)
                min = lst.min()!
                break
            }
        }
        for i in 0..<lst.count {
            if lst[i] == max {
                result.append(max)
                lst.remove(at: i)
                max = lst.max()!
                break
            }
        }
    }
    return result
}
<|file_separator|>
lst.remove(at: i) // cannot use mutating member on immutable value: 'lst' is a 'let' constant
lst.remove(at: i) // cannot use mutating member on immutable value: 'lst' is a 'let' constant

func strangeSortList(lst: [Int]) -> [Int] {
    var sortedList = lst
    var sorted = false
    while !sorted {
        sorted = true
        for i in 0..<sortedList.count - 1 {
            if sortedList[i] > sortedList[i + 1] {
                sorted = false
                let temp = sortedList[i]
                sortedList[i] = sortedList[i + 1]
                sortedList[i + 1] = temp
            }
        }
    }
    return sortedList
}
```swift
// Given array of integers, return array in strange order.
// Strange sorting, is when you start with the minimum value,
// then maximum of the remaining integers, then minimum and so on.
// Examples:
// strangeSortList(lst: [1, 2, 3, 4]) == [1, 4, 2, 3]
// strangeSortList(lst: [5, 5, 5, 5]) == [5, 5, 5, 5]
// strangeSortList(lst: [] as [Int]) == [] as [Int]
func strangeSortList(lst: [Int]) -> [Int] {
    var sortedList = lst
    var sorted = false
    while !sorted {
        sorted = true
        for i in 0..<sortedList.count - 1 {
            if sortedList[i] > sortedList[i + 1] {
                sorted = false
                let temp = sortedList[i]
                sortedList[i] = sortedList[i + 1]
                sortedList[i + 1] = temp
            }
        }
    }
    return sortedList
}
<|file_separator|>
 // XCTAssertTrue failed

func strangeSortList(lst: [Int]) -> [Int] {
    var result = [Int]()
    var min = Int.max
    var max = Int.min
    for i in lst {
        if i < min {
            min = i
        }
        if i > max {
            max = i
        }
    }
    while min <= max {
        for i in lst {
            if i == min {
                result.append(min)
                min += 1
                break
            }
        }
        for i in lst {
            if i == max {
                result.append(max)
                max -= 1
                break
            }
        }
    }
    return result
}
```swift
// Given array of integers, return array in strange order.
// Strange sorting, is when you start with the minimum value,
// then maximum of the remaining integers, then minimum and so on.
// Examples:
// strangeSortList(lst: [1, 2, 3, 4]) == [1, 4, 2, 3]
// strangeSortList(lst: [5, 5, 5, 5]) == [5, 5, 5, 5]
// strangeSortList(lst: [] as [Int]) == [] as [Int]
func strangeSortList(lst: [Int]) -> [Int] {
    var result = [Int]()
    var min = Int.max
    var max = Int.min
    for i in lst {
        if i < min {
            min = i
        }
        if i > max {
            max = i
        }
    }
    while min <= max {
        for i in lst {
            if i == min {
                result.append(min)
                min += 1
                break
            }
        }
        for i in lst {
            if i == max {
                result.append(max)
                max -= 1
                break
            }
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func strangeSortList(lst: [Int]) -> [Int] {
    var sortedList = lst
    var min = sortedList.min()
    var max = sortedList.max()
    var i = 0
    while i < sortedList.count {
        if sortedList[i] == min {
            sortedList.remove(at: i)
            sortedList.insert(max!, at: 0)
            max = sortedList.max()
            i = 0
        } else {
            i += 1
        }
    }
    return sortedList
}
```swift
// Given array of integers, return array in strange order.
// Strange sorting, is when you start with the minimum value,
// then maximum of the remaining integers, then minimum and so on.
// Examples:
// strangeSortList(lst: [1, 2, 3, 4]) == [1, 4, 2, 3]
// strangeSortList(lst: [5, 5, 5, 5]) == [5, 5, 5, 5]
// strangeSortList(lst: [] as [Int]) == [] as [Int]
func strangeSortList(lst: [Int]) -> [Int] {
    var sortedList = lst
    var min = sortedList.min()
    var max = sortedList.max()
    var i = 0
    while i < sortedList.count {
        if sortedList[i] == min {
            sortedList.remove(at: i)
            sortedList.insert(max!, at: 0)
            max = sortedList.max()
            i = 0
        } else {
            i += 1
        }
    }
    return sortedList
}
<|file_separator|>
var min = sortedList.min() // variable 'min' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func strangeSortList(lst: [Int]) -> [Int] {
    var result = [Int]()
    var min = Int.max
    var max = Int.min
    for i in 0..<lst.count {
        if lst[i] < min {
            min = lst[i]
        }
        if lst[i] > max {
            max = lst[i]
        }
    }
    var minIndex = 0
    var maxIndex = 0
    for i in 0..<lst.count {
        if lst[i] == min {
            minIndex = i
        }
        if lst[i] == max {
            maxIndex = i
        }
    }
    result.append(min)
    result.append(max)
    for i in 0..<lst.count {
        if i != minIndex && i != maxIndex {
            result.append(lst[i])
        }
    }
    return result
}
```swift
// Given array of integers, return array in strange order.
// Strange sorting, is when you start with the minimum value,
// then maximum of the remaining integers, then minimum and so on.
// Examples:
// strangeSortList(lst: [1, 2, 3, 4]) == [1, 4, 2, 3]
// strangeSortList(lst: [5, 5, 5, 5]) == [5, 5, 5, 5]
// strangeSortList(lst: [] as [Int]) == [] as [Int]
func strangeSortList(lst: [Int]) -> [Int] {
    var result = [Int]()
    var min = Int.max
    var max = Int.min
    for i in 0..<lst.count {
        if lst[i] < min {
            min = lst[i]
        }
        if lst[i] > max {
            max = lst[i]
        }
    }
    var minIndex = 0
    var maxIndex = 0
    for i in 0..<lst.count {
        if lst[i] == min {
            minIndex = i
        }
        if lst[i] == max {
            maxIndex = i
        }
    }
    result.append(min)
    result.append(max)
    for i in 0..<lst.count {
        if i != minIndex && i != maxIndex {
            result.append(lst[i])
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func strangeSortList(lst: [Int]) -> [Int] {
    var sorted = lst
    var i = 0
    while i < sorted.count {
        var j = i + 1
        while j < sorted.count {
            if sorted[j] > sorted[i] {
                sorted.swapAt(i, j)
            }
            j += 1
        }
        i += 1
    }
    return sorted
}
```swift
// Given array of integers, return array in strange order.
// Strange sorting, is when you start with the minimum value,
// then maximum of the remaining integers, then minimum and so on.
// Examples:
// strangeSortList(lst: [1, 2, 3, 4]) == [1, 4, 2, 3]
// strangeSortList(lst: [5, 5, 5, 5]) == [5, 5, 5, 5]
// strangeSortList(lst: [] as [Int]) == [] as [Int]
func strangeSortList(lst: [Int]) -> [Int] {
    var sorted = lst
    var i = 0
    while i < sorted.count {
        var j = i + 1
        while j < sorted.count {
            if sorted[j] > sorted[i] {
                sorted.swapAt(i, j)
            }
            j += 1
        }
        i += 1
    }
    return sorted
}
<|file_separator|>```
 // XCTAssertTrue failed

func strangeSortList(lst: [Int]) -> [Int] {
    var sorted = lst
    var i = 0
    var j = 0
    while i < sorted.count {
        if j < sorted.count {
            if sorted[i] > sorted[j] {
                let tmp = sorted[i]
                sorted[i] = sorted[j]
                sorted[j] = tmp
                i = 0
                j = 0
            } else {
                j += 1
            }
        } else {
            i += 1
            j = i
        }
    }
    return sorted
}
```swift
// Given array of integers, return array in strange order.
// Strange sorting, is when you start with the minimum value,
// then maximum of the remaining integers, then minimum and so on.
// Examples:
// strangeSortList(lst: [1, 2, 3, 4]) == [1, 4, 2, 3]
// strangeSortList(lst: [5, 5, 5, 5]) == [5, 5, 5, 5]
// strangeSortList(lst: [] as [Int]) == [] as [Int]
func strangeSortList(lst: [Int]) -> [Int] {
    var sorted = lst
    var i = 0
    var j = 0
    while i < sorted.count {
        if j < sorted.count {
            if sorted[i] > sorted[j] {
                let tmp = sorted[i]
                sorted[i] = sorted[j]
                sorted[j] = tmp
                i = 0
                j = 0
            } else {
                j += 1
            }
        } else {
            i += 1
            j = i
        }
    }
    return sorted
}
<|file_separator|>
 // XCTAssertTrue failed

func strangeSortList(lst: [Int]) -> [Int] {
    var sorted = lst
    var min = sorted[0]
    var max = sorted[0]
    for i in 0..<sorted.count {
        if sorted[i] < min {
            min = sorted[i]
        }
        if sorted[i] > max {
            max = sorted[i]
        }
    }
    var minIndex = 0
    var maxIndex = 0
    for i in 0..<sorted.count {
        if sorted[i] == min {
            minIndex = i
        }
        if sorted[i] == max {
            maxIndex = i
        }
    }
    sorted.remove(at: minIndex)
    sorted.remove(at: maxIndex)
    return sorted
}
```swift
// Given array of integers, return array in strange order.
// Strange sorting, is when you start with the minimum value,
// then maximum of the remaining integers, then minimum and so on.
// Examples:
// strangeSortList(lst: [1, 2, 3, 4]) == [1, 4, 2, 3]
// strangeSortList(lst: [5, 5, 5, 5]) == [5, 5, 5, 5]
// strangeSortList(lst: [] as [Int]) == [] as [Int]
func strangeSortList(lst: [Int]) -> [Int] {
    var sorted = lst
    var min = sorted[0]
    var max = sorted[0]
    for i in 0..<sorted.count {
        if sorted[i] < min {
            min = sorted[i]
        }
        if sorted[i] > max {
            max = sorted[i]
        }
    }
    var minIndex = 0
    var maxIndex = 0
    for i in 0..<sorted.count {
        if sorted[i] == min {
            minIndex = i
        }
        if sorted[i] == max {
            maxIndex = i
        }
    }
    sorted.remove(at: minIndex)
    sorted.remove(at: maxIndex)
    return sorted
}
<|file_separator|>```
 // Fatal error: Index out of range

func strangeSortList(lst: [Int]) -> [Int] {
    var sortedList = lst
    var min = sortedList[0]
    var max = sortedList[0]
    for i in 0..<sortedList.count {
        if sortedList[i] < min {
            min = sortedList[i]
        }
        if sortedList[i] > max {
            max = sortedList[i]
        }
    }
    for i in 0..<sortedList.count {
        if sortedList[i] == min {
            sortedList[i] = max
        }
    }
    return sortedList
}
```swift
// Given array of integers, return array in strange order.
// Strange sorting, is when you start with the minimum value,
// then maximum of the remaining integers, then minimum and so on.
// Examples:
// strangeSortList(lst: [1, 2, 3, 4]) == [1, 4, 2, 3]
// strangeSortList(lst: [5, 5, 5, 5]) == [5, 5, 5, 5]
// strangeSortList(lst: [] as [Int]) == [] as [Int]
func strangeSortList(lst: [Int]) -> [Int] {
    var sortedList = lst
    var min = sortedList[0]
    var max = sortedList[0]
    for i in 0..<sortedList.count {
        if sortedList[i] < min {
            min = sortedList[i]
        }
        if sortedList[i] > max {
            max = sortedList[i]
        }
    }
    for i in 0..<sortedList.count {
        if sortedList[i] == min {
            sortedList[i] = max
        }
    }
    return sortedList
}
<|file_separator|>
 // XCTAssertTrue failed

func strangeSortList(lst: [Int]) -> [Int] {
    var sorted = lst
    var min = sorted.min()
    var max = sorted.max()
    var i = 0
    while i < sorted.count {
        if sorted[i] == min {
            sorted.remove(at: i)
            min = sorted.min()
        } else if sorted[i] == max {
            sorted.remove(at: i)
            max = sorted.max()
        } else {
            i += 1
        }
    }
    return sorted
}
```swift
// Given array of integers, return array in strange order.
// Strange sorting, is when you start with the minimum value,
// then maximum of the remaining integers, then minimum and so on.
// Examples:
// strangeSortList(lst: [1, 2, 3, 4]) == [1, 4, 2, 3]
// strangeSortList(lst: [5, 5, 5, 5]) == [5, 5, 5, 5]
// strangeSortList(lst: [] as [Int]) == [] as [Int]
func strangeSortList(lst: [Int]) -> [Int] {
    var sorted = lst
    var min = sorted.min()
    var max = sorted.max()
    var i = 0
    while i < sorted.count {
        if sorted[i] == min {
            sorted.remove(at: i)
            min = sorted.min()
        } else if sorted[i] == max {
            sorted.remove(at: i)
            max = sorted.max()
        } else {
            i += 1
        }
    }
    return sorted
}
<|file_separator|>
 // XCTAssertTrue failed

func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let a = Double(a)
    let b = Double(b)
    let c = Double(c)
    let p = (a + b + c) / 2
    let area = sqrt(p * (p - a) * (p - b) * (p - c))
    if area.isFinite {
        return area
    }
    return -1
}
```swift
// Given the lengths of the three sides of a triangle. Return the area of
// the triangle rounded to 2 decimal points if the three sides form a valid triangle. 
// Otherwise return -1
// Three sides make a valid triangle when the sum of any two sides is greater 
// than the third side.
// Example:
// triangleArea(a: 3, b: 4, c: 5) == 6.0
// triangleArea(a: 1, b: 2, c: 10) == -1
func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let a = Double(a)
    let b = Double(b)
    let c = Double(c)
    let p = (a + b + c) / 2
    let area = sqrt(p * (p - a) * (p - b) * (p - c))
    if area.isFinite {
        return area
    }
    return -1
}
<|file_separator|>```
 // XCTAssertTrue failed

func triangleArea(a: Int, b: Int, c: Int) -> Double {
    if a + b > c && a + c > b && b + c > a {
        let s = (a + b + c) / 2
        return (s * (s - a) * (s - b) * (s - c)).squareRoot()
    }
    return -1
}
```swift
// Given the lengths of the three sides of a triangle. Return the area of
// the triangle rounded to 2 decimal points if the three sides form a valid triangle. 
// Otherwise return -1
// Three sides make a valid triangle when the sum of any two sides is greater 
// than the third side.
// Example:
// triangleArea(a: 3, b: 4, c: 5) == 6.0
// triangleArea(a: 1, b: 2, c: 10) == -1
func triangleArea(a: Int, b: Int, c: Int) -> Double {
    if a + b > c && a + c > b && b + c > a {
        let s = (a + b + c) / 2
        return (s * (s - a) * (s - b) * (s - c)).squareRoot()
    }
    return -1
}
<|file_separator|>
return (s * (s - a) * (s - b) * (s - c)).squareRoot() // value of type 'Int' has no member 'squareRoot'

func triangleArea(a: Int, b: Int, c: Int) -> Double {
    if a + b <= c || b + c <= a || a + c <= b {
        return -1
    }
    let p = (a + b + c) / 2
    return (p * (p - a) * (p - b) * (p - c)).squareRoot()
}
```swift
// Given the lengths of the three sides of a triangle. Return the area of
// the triangle rounded to 2 decimal points if the three sides form a valid triangle. 
// Otherwise return -1
// Three sides make a valid triangle when the sum of any two sides is greater 
// than the third side.
// Example:
// triangleArea(a: 3, b: 4, c: 5) == 6.0
// triangleArea(a: 1, b: 2, c: 10) == -1
func triangleArea(a: Int, b: Int, c: Int) -> Double {
    if a + b <= c || b + c <= a || a + c <= b {
        return -1
    }
    let p = (a + b + c) / 2
    return (p * (p - a) * (p - b) * (p - c)).squareRoot()
}
<|file_separator|>```
return (p * (p - a) * (p - b) * (p - c)).squareRoot() // value of type 'Int' has no member 'squareRoot'

func triangleArea(a: Int, b: Int, c: Int) -> Double {
    if a + b > c && a + c > b && b + c > a {
        let s = (a + b + c) / 2.0
        return (s * (s - a) * (s - b) * (s - c)).squareRoot()
    } else {
        return -1
    }
}
```swift
// Given the lengths of the three sides of a triangle. Return the area of
// the triangle rounded to 2 decimal points if the three sides form a valid triangle. 
// Otherwise return -1
// Three sides make a valid triangle when the sum of any two sides is greater 
// than the third side.
// Example:
// triangleArea(a: 3, b: 4, c: 5) == 6.0
// triangleArea(a: 1, b: 2, c: 10) == -1
func triangleArea(a: Int, b: Int, c: Int) -> Double {
    if a + b > c && a + c > b && b + c > a {
        let s = (a + b + c) / 2.0
        return (s * (s - a) * (s - b) * (s - c)).squareRoot()
    } else {
        return -1
    }
}
<|file_separator|>
let s = (a + b + c) / 2.0 // binary operator '/' cannot be applied to operands of type 'Int' and 'Double'

func triangleArea(a: Int, b: Int, c: Int) -> Double {
    if a + b <= c || a + c <= b || b + c <= a {
        return -1
    }
    let s = (a + b + c) / 2.0
    return (s * (s - a) * (s - b) * (s - c)).squareRoot()
}
```swift
// Given the lengths of the three sides of a triangle. Return the area of
// the triangle rounded to 2 decimal points if the three sides form a valid triangle. 
// Otherwise return -1
// Three sides make a valid triangle when the sum of any two sides is greater 
// than the third side.
// Example:
// triangleArea(a: 3, b: 4, c: 5) == 6.0
// triangleArea(a: 1, b: 2, c: 10) == -1
func triangleArea(a: Int, b: Int, c: Int) -> Double {
    if a + b <= c || a + c <= b || b + c <= a {
        return -1
    }
    let s = (a + b + c) / 2.0
    return (s * (s - a) * (s - b) * (s - c)).squareRoot()
}
<|file_separator|>
let s = (a + b + c) / 2.0 // binary operator '/' cannot be applied to operands of type 'Int' and 'Double'

func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let s = (a + b + c) / 2.0
    let area = sqrt(s * (s - a) * (s - b) * (s - c))
    return area
}
```swift
// Given the lengths of the three sides of a triangle. Return the area of
// the triangle rounded to 2 decimal points if the three sides form a valid triangle. 
// Otherwise return -1
// Three sides make a valid triangle when the sum of any two sides is greater 
// than the third side.
// Example:
// triangleArea(a: 3, b: 4, c: 5) == 6.0
// triangleArea(a: 1, b: 2, c: 10) == -1
func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let s = (a + b + c) / 2.0
    let area = sqrt(s * (s - a) * (s - b) * (s - c))
    return area
}
<|file_separator|>```

func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let s = (a + b + c) / 2.0
    let area = sqrt(s * (s - a) * (s - b) * (s - c))
    return area
}

func countA(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "a" {
            count += 1
        }
    }
    return count
}

func countB(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "b" {
            count += 1
        }
    }
    return count
}

func countC(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "c" {
            count += 1
        }
    }
    return count
}

func countD(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "d" {
            count += 1
        }
    }
    return count
}

func countE(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "e" {
            count += 1
        }
    }
    return count
}

func countF(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "f" {
            count += 1
        }
    }
    return count
}

func countG(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "g" {
            count += 1
        }
    }
    return count
}

func countH(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "h" {
            count += 1
        }
    }
    return count
}

func countI(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "i" {
            count += 1
        }
    }
    return count
}
```swift
// Given the lengths of the three sides of a triangle. Return the area of
// the triangle rounded to 2 decimal points if the three sides form a valid triangle. 
// Otherwise return -1
// Three sides make a valid triangle when the sum of any two sides is greater 
// than the third side.
// Example:
// triangleArea(a: 3, b: 4, c: 5) == 6.0
// triangleArea(a: 1, b: 2, c: 10) == -1
func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let s = (a + b + c) / 2.0
    let area = sqrt(s * (s - a) * (s - b) * (s - c))
    return area
}

// Given a string, return the number of times the letter "a" occurs in it.
// Example:
// countA("Hello") == 1
// countA("How many a's in this?") == 3
func countA(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "a" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times the letter "b" occurs in it.
// Example:
// countB("Hello") == 0
// countB("How many b's in this?") == 2
func countB(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "b" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times the letter "c" occurs in it.
// Example:
// countC("Hello") == 0
// countC("How many c's in this?") == 2
func countC(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "c" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times the letter "d" occurs in it.
// Example:
// countD("Hello") == 0
// countD("How many d's in this?") == 2
func countD(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "d" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times the letter "e" occurs in it.
// Example:
// countE("Hello") == 1
// countE("How many e's in this?") == 3
func countE(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "e" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times the letter "f" occurs in it.
// Example:
// countF("Hello") == 0
// countF("How many f's in this?") == 2
func countF(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "f" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times the letter "g" occurs in it.
// Example:
// countG("Hello") == 0
// countG("How many g's in this?") == 2
func countG(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "g" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times the letter "h" occurs in it.
// Example:
// countH("Hello") == 1
// countH("How many h's in this?") == 3
func countH(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "h" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times the letter "i" occurs in it.
// Example:
// countI("Hello") == 1
// countI("How many i's in this?") == 3
func countI(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "i" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times the letter "j" occurs in it.
// Example:
// countJ("Hello") == 0
// countJ("How many j's in this?") ==

func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let s = (a + b + c) / 2.0
    let area = sqrt(s * (s - a) * (s - b) * (s - c))
    return area
}
```swift
// Given the lengths of the three sides of a triangle. Return the area of
// the triangle rounded to 2 decimal points if the three sides form a valid triangle. 
// Otherwise return -1
// Three sides make a valid triangle when the sum of any two sides is greater 
// than the third side.
// Example:
// triangleArea(a: 3, b: 4, c: 5) == 6.0
// triangleArea(a: 1, b: 2, c: 10) == -1
func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let s = (a + b + c) / 2.0
    let area = sqrt(s * (s - a) * (s - b) * (s - c))
    return area
}
<|file_separator|>

func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let s = (a + b + c) / 2.0
    let area = sqrt(s * (s - a) * (s - b) * (s - c))
    return area
}
```swift
// Given the lengths of the three sides of a triangle. Return the area of
// the triangle rounded to 2 decimal points if the three sides form a valid triangle. 
// Otherwise return -1
// Three sides make a valid triangle when the sum of any two sides is greater 
// than the third side.
// Example:
// triangleArea(a: 3, b: 4, c: 5) == 6.0
// triangleArea(a: 1, b: 2, c: 10) == -1
func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let s = (a + b + c) / 2.0
    let area = sqrt(s * (s - a) * (s - b) * (s - c))
    return area
}
<|file_separator|>```

func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let s = (a + b + c) / 2.0
    let area = sqrt(s * (s - a) * (s - b) * (s - c))
    return area
}

func longestWord(string: String) -> Int {
    let words = string.componentsSeparatedByString(" ")
    var longest = 0
    for word in words {
        if word.characters.count > longest {
            longest = word.characters.count
        }
    }
    return longest
}

func palindromeCount(string: String) -> Int {
    let words = string.componentsSeparatedByString(" ")
    var count = 0
    for word in words {
        if word == String(word.characters.reverse()) {
            count += 1
        }
    }
    return count
}

func anagramCount(string: String) -> Int {
    let words = string.componentsSeparatedByString(" ")
    var count = 0
    for word in words {
        if word == String(word.characters.reverse()) {
            count += 1
        }
    }
    return count
}

func palindromeAnagramCount(string: String) -> Int {
    let words = string.componentsSeparatedByString(" ")
    var count = 0
    for word in words {
        if word == String(word.characters.reverse()) {
            count += 1
        }
    }
    return count
}
```swift
// Given the lengths of the three sides of a triangle. Return the area of
// the triangle rounded to 2 decimal points if the three sides form a valid triangle. 
// Otherwise return -1
// Three sides make a valid triangle when the sum of any two sides is greater 
// than the third side.
// Example:
// triangleArea(a: 3, b: 4, c: 5) == 6.0
// triangleArea(a: 1, b: 2, c: 10) == -1
func triangleArea(a: Int, b: Int, c: Int) -> Double {
    let s = (a + b + c) / 2.0
    let area = sqrt(s * (s - a) * (s - b) * (s - c))
    return area
}

// Given a string of words, return the length of the longest word.
// Example:
// longestWord("I am the longest word") == 7
// longestWord("I am the shortest word") == 7
func longestWord(string: String) -> Int {
    let words = string.componentsSeparatedByString(" ")
    var longest = 0
    for word in words {
        if word.characters.count > longest {
            longest = word.characters.count
        }
    }
    return longest
}

// Given a string of words, return the number of words that are palindromes.
// A palindrome is a word that is spelled the same backwards as forwards.
// Example:
// palindromeCount("I am the longest word") == 1
// palindromeCount("I am the shortest word") == 0
func palindromeCount(string: String) -> Int {
    let words = string.componentsSeparatedByString(" ")
    var count = 0
    for word in words {
        if word == String(word.characters.reverse()) {
            count += 1
        }
    }
    return count
}

// Given a string of words, return the number of words that are anagrams.
// An anagram is a word that is spelled the same forwards and backwards.
// Example:
// anagramCount("I am the longest word") == 2
// anagramCount("I am the shortest word") == 1
func anagramCount(string: String) -> Int {
    let words = string.componentsSeparatedByString(" ")
    var count = 0
    for word in words {
        if word == String(word.characters.reverse()) {
            count += 1
        }
    }
    return count
}

// Given a string of words, return the number of words that are palindromes
// and anagrams.
// A palindrome is a word that is spelled the same backwards as forwards.
// An anagram is a word that is spelled the same forwards and backwards.
// Example:
// palindromeAnagramCount("I am the longest word") == 3
// palindromeAnagramCount("I am the shortest word") == 0
func palindromeAnagramCount(string: String) -> Int {
    let words = string.componentsSeparatedByString(" ")
    var count = 0
    for word in words {
        if word == String(word.characters.reverse()) {
            count += 1
        }
    }
    return count
}

// Given a string of words, return the number of words that are palindromes
// and anagrams.
// A palindrome is a word that is spelled the same backwards as forwards.
// An anagram is a word that is spelled the same forwards and backwards.
// Example:
// palindromeAnagramCount("I am the longest word") == 3
// palindromeAnagramCount("I am the shortest word") == 0
func palindromeAnagramCount(string: String) -> Int {
    let words = string.componentsSeparatedByString(" ")
    var count = 0
    for word in words {
        if word == String(word.characters.reverse()) {
            count += 1
        }
    }
    return count
}

// Given a string of words, return the number of words that are palindromes
// and anagrams.
// A palindrome is a word that is spelled the same backwards as forwards.
// An anagram is a word that is spelled the same forwards and backwards.
// Example:
// palindromeAnagramCount("I am the longest word") == 3
// palindromeAnagramCount("I am the shortest word") == 0
func palindromeAnagramCount(string: String) -> Int {
    let words = string.componentsSeparatedByString(" ")
    var count = 0
    for word in words {
        if word == String(word.characters.reverse()) {
            count += 1
        }
    }
    return count
}

// Given a string of words, return the number of words that are palindromes
// and anagrams.
// A palindrome is a word that is spelled the same backwards as forwards.
// An anagram is a word that is spelled the same forwards and backwards.
// Example:
// palindromeAnagramCount("I am the longest word") == 3
//

func willItFly(q: [Int], w: Int) -> Bool {
    let sum = q.reduce(0, +)
    let max = q.max()!
    return sum <= w && q.isPalindromic() && sum - max <= w
}
```swift
// Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is a palindromic array) and the sum of its elements is less than or equal the maximum possible weight w.
// Example:
// # 1+2 is less than the maximum possible weight, but it's unbalanced.
// # it's balanced, but 3+2+3 is more than the maximum possible weight.
// # 3+2+3 is less than the maximum possible weight, and it's balanced.
// # 3 is less than the maximum possible weight, and it's balanced.
// willItFly(q: [1, 2], w: 5) == false
// willItFly(q: [3, 2, 3], w: 1) == false
// willItFly(q: [3, 2, 3], w: 9) == true
// willItFly(q: [3], w: 5) == true
func willItFly(q: [Int], w: Int) -> Bool {
    let sum = q.reduce(0, +)
    let max = q.max()!
    return sum <= w && q.isPalindromic() && sum - max <= w
}
<|file_separator|>```
return sum <= w && q.isPalindromic() && sum - max <= w // value of type '[Int]' has no member 'isPalindromic'

func willItFly(q: [Int], w: Int) -> Bool {
    var sum = 0
    for i in q {
        sum += i
    }
    if sum > w {
        return false
    }
    var isPalindromic = true
    for i in 0..<q.count/2 {
        if q[i] != q[q.count - i - 1] {
            isPalindromic = false
            break
        }
    }
    return isPalindromic
}
```swift
// Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is a palindromic array) and the sum of its elements is less than or equal the maximum possible weight w.
// Example:
// # 1+2 is less than the maximum possible weight, but it's unbalanced.
// # it's balanced, but 3+2+3 is more than the maximum possible weight.
// # 3+2+3 is less than the maximum possible weight, and it's balanced.
// # 3 is less than the maximum possible weight, and it's balanced.
// willItFly(q: [1, 2], w: 5) == false
// willItFly(q: [3, 2, 3], w: 1) == false
// willItFly(q: [3, 2, 3], w: 9) == true
// willItFly(q: [3], w: 5) == true
func willItFly(q: [Int], w: Int) -> Bool {
    var sum = 0
    for i in q {
        sum += i
    }
    if sum > w {
        return false
    }
    var isPalindromic = true
    for i in 0..<q.count/2 {
        if q[i] != q[q.count - i - 1] {
            isPalindromic = false
            break
        }
    }
    return isPalindromic
}
<|file_separator|>

func willItFly(q: [Int], w: Int) -> Bool {
    // your code here
    var sum = 0
    for i in q {
        sum += i
    }
    if sum > w {
        return false
    }
    var left = 0
    var right = q.count - 1
    while left < right {
        if q[left] != q[right] {
            return false
        }
        left += 1
        right -= 1
    }
    return true
}
```swift
// Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is a palindromic array) and the sum of its elements is less than or equal the maximum possible weight w.
// Example:
// # 1+2 is less than the maximum possible weight, but it's unbalanced.
// # it's balanced, but 3+2+3 is more than the maximum possible weight.
// # 3+2+3 is less than the maximum possible weight, and it's balanced.
// # 3 is less than the maximum possible weight, and it's balanced.
// willItFly(q: [1, 2], w: 5) == false
// willItFly(q: [3, 2, 3], w: 1) == false
// willItFly(q: [3, 2, 3], w: 9) == true
// willItFly(q: [3], w: 5) == true
func willItFly(q: [Int], w: Int) -> Bool {
    // your code here
    var sum = 0
    for i in q {
        sum += i
    }
    if sum > w {
        return false
    }
    var left = 0
    var right = q.count - 1
    while left < right {
        if q[left] != q[right] {
            return false
        }
        left += 1
        right -= 1
    }
    return true
}
<|file_separator|>

func willItFly(q: [Int], w: Int) -> Bool {
    // Write your code here
    var sum = 0
    for i in q {
        sum += i
    }
    if sum > w {
        return false
    }
    var isPalindromic = true
    for i in 0..<q.count/2 {
        if q[i] != q[q.count-1-i] {
            isPalindromic = false
            break
        }
    }
    return isPalindromic
}
```swift
// Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is a palindromic array) and the sum of its elements is less than or equal the maximum possible weight w.
// Example:
// # 1+2 is less than the maximum possible weight, but it's unbalanced.
// # it's balanced, but 3+2+3 is more than the maximum possible weight.
// # 3+2+3 is less than the maximum possible weight, and it's balanced.
// # 3 is less than the maximum possible weight, and it's balanced.
// willItFly(q: [1, 2], w: 5) == false
// willItFly(q: [3, 2, 3], w: 1) == false
// willItFly(q: [3, 2, 3], w: 9) == true
// willItFly(q: [3], w: 5) == true
func willItFly(q: [Int], w: Int) -> Bool {
    // Write your code here
    var sum = 0
    for i in q {
        sum += i
    }
    if sum > w {
        return false
    }
    var isPalindromic = true
    for i in 0..<q.count/2 {
        if q[i] != q[q.count-1-i] {
            isPalindromic = false
            break
        }
    }
    return isPalindromic
}
<|file_separator|>

func willItFly(q: [Int], w: Int) -> Bool {
    var sum = 0
    for i in q {
        sum += i
    }
    if sum > w {
        return false
    }
    var isBalanced = true
    for i in 0..<q.count/2 {
        if q[i] != q[q.count-1-i] {
            isBalanced = false
            break
        }
    }
    return isBalanced
}
```swift
// Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is a palindromic array) and the sum of its elements is less than or equal the maximum possible weight w.
// Example:
// # 1+2 is less than the maximum possible weight, but it's unbalanced.
// # it's balanced, but 3+2+3 is more than the maximum possible weight.
// # 3+2+3 is less than the maximum possible weight, and it's balanced.
// # 3 is less than the maximum possible weight, and it's balanced.
// willItFly(q: [1, 2], w: 5) == false
// willItFly(q: [3, 2, 3], w: 1) == false
// willItFly(q: [3, 2, 3], w: 9) == true
// willItFly(q: [3], w: 5) == true
func willItFly(q: [Int], w: Int) -> Bool {
    var sum = 0
    for i in q {
        sum += i
    }
    if sum > w {
        return false
    }
    var isBalanced = true
    for i in 0..<q.count/2 {
        if q[i] != q[q.count-1-i] {
            isBalanced = false
            break
        }
    }
    return isBalanced
}
<|file_separator|>

func willItFly(q: [Int], w: Int) -> Bool {
    let max = q.reduce(0, +)
    if q.count == 1 {
        return true
    }
    if q.count == 2 {
        return q[0] + q[1] <= w
    }
    if q.count == 3 {
        return q[0] + q[1] + q[2] <= w && q[0] == q[2]
    }
    var q = q
    q.sort()
    let half = q.count / 2
    let left = q[0...half - 1]
    let right = q[half...q.count - 1]
    if left.reduce(0, +) + right.reduce(0, +) <= w {
        return true
    }
    if q.count % 2 == 0 {
        return false
    }
    return true
}
```swift
// Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is a palindromic array) and the sum of its elements is less than or equal the maximum possible weight w.
// Example:
// # 1+2 is less than the maximum possible weight, but it's unbalanced.
// # it's balanced, but 3+2+3 is more than the maximum possible weight.
// # 3+2+3 is less than the maximum possible weight, and it's balanced.
// # 3 is less than the maximum possible weight, and it's balanced.
// willItFly(q: [1, 2], w: 5) == false
// willItFly(q: [3, 2, 3], w: 1) == false
// willItFly(q: [3, 2, 3], w: 9) == true
// willItFly(q: [3], w: 5) == true
func willItFly(q: [Int], w: Int) -> Bool {
    let max = q.reduce(0, +)
    if q.count == 1 {
        return true
    }
    if q.count == 2 {
        return q[0] + q[1] <= w
    }
    if q.count == 3 {
        return q[0] + q[1] + q[2] <= w && q[0] == q[2]
    }
    var q = q
    q.sort()
    let half = q.count / 2
    let left = q[0...half - 1]
    let right = q[half...q.count - 1]
    if left.reduce(0, +) + right.reduce(0, +) <= w {
        return true
    }
    if q.count % 2 == 0 {
        return false
    }
    return true
}
<|file_separator|>
let max = q.reduce(0, +) // initialization of immutable value 'max' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func willItFly(q: [Int], w: Int) -> Bool {
    var sum = 0
    var isBalanced = true
    var isPalindrome = true
    var isLessThanW = true
    for i in q {
        sum += i
        if i % 2 != 0 {
            isBalanced = false
        }
        if i != q.last {
            isPalindrome = false
        }
        if i > w {
            isLessThanW = false
        }
    }
    if isPalindrome && isBalanced && sum <= w {
        return true
    } else if isLessThanW && isBalanced {
        return true
    } else {
        return false
    }
}
```swift
// Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is a palindromic array) and the sum of its elements is less than or equal the maximum possible weight w.
// Example:
// # 1+2 is less than the maximum possible weight, but it's unbalanced.
// # it's balanced, but 3+2+3 is more than the maximum possible weight.
// # 3+2+3 is less than the maximum possible weight, and it's balanced.
// # 3 is less than the maximum possible weight, and it's balanced.
// willItFly(q: [1, 2], w: 5) == false
// willItFly(q: [3, 2, 3], w: 1) == false
// willItFly(q: [3, 2, 3], w: 9) == true
// willItFly(q: [3], w: 5) == true
func willItFly(q: [Int], w: Int) -> Bool {
    var sum = 0
    var isBalanced = true
    var isPalindrome = true
    var isLessThanW = true
    for i in q {
        sum += i
        if i % 2 != 0 {
            isBalanced = false
        }
        if i != q.last {
            isPalindrome = false
        }
        if i > w {
            isLessThanW = false
        }
    }
    if isPalindrome && isBalanced && sum <= w {
        return true
    } else if isLessThanW && isBalanced {
        return true
    } else {
        return false
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func willItFly(q: [Int], w: Int) -> Bool {
    // Write your code here
    var sum = 0
    var isBalanced = true
    for i in q {
        sum += i
        if sum > w {
            isBalanced = false
            break
        }
    }
    if isBalanced {
        return true
    }
    return false
}
```swift
// Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is a palindromic array) and the sum of its elements is less than or equal the maximum possible weight w.
// Example:
// # 1+2 is less than the maximum possible weight, but it's unbalanced.
// # it's balanced, but 3+2+3 is more than the maximum possible weight.
// # 3+2+3 is less than the maximum possible weight, and it's balanced.
// # 3 is less than the maximum possible weight, and it's balanced.
// willItFly(q: [1, 2], w: 5) == false
// willItFly(q: [3, 2, 3], w: 1) == false
// willItFly(q: [3, 2, 3], w: 9) == true
// willItFly(q: [3], w: 5) == true
func willItFly(q: [Int], w: Int) -> Bool {
    // Write your code here
    var sum = 0
    var isBalanced = true
    for i in q {
        sum += i
        if sum > w {
            isBalanced = false
            break
        }
    }
    if isBalanced {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func willItFly(q: [Int], w: Int) -> Bool {
    let max = q.reduce(0, +)
    let half = q.count / 2
    let left = q[0..<half]
    let right = q[half..<q.count]
    let leftSum = left.reduce(0, +)
    let rightSum = right.reduce(0, +)
    return leftSum <= w && rightSum <= w && left.isPalindromic() && right.isPalindromic()
}

func isPalindromic() -> Bool {
    let half = self.count / 2
    for i in 0..<half {
        if self[i] != self[self.count - 1 - i] {
            return false
        }
    }
    return true
}
```swift
// Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is a palindromic array) and the sum of its elements is less than or equal the maximum possible weight w.
// Example:
// # 1+2 is less than the maximum possible weight, but it's unbalanced.
// # it's balanced, but 3+2+3 is more than the maximum possible weight.
// # 3+2+3 is less than the maximum possible weight, and it's balanced.
// # 3 is less than the maximum possible weight, and it's balanced.
// willItFly(q: [1, 2], w: 5) == false
// willItFly(q: [3, 2, 3], w: 1) == false
// willItFly(q: [3, 2, 3], w: 9) == true
// willItFly(q: [3], w: 5) == true
func willItFly(q: [Int], w: Int) -> Bool {
    let max = q.reduce(0, +)
    let half = q.count / 2
    let left = q[0..<half]
    let right = q[half..<q.count]
    let leftSum = left.reduce(0, +)
    let rightSum = right.reduce(0, +)
    return leftSum <= w && rightSum <= w && left.isPalindromic() && right.isPalindromic()
}

func isPalindromic() -> Bool {
    let half = self.count / 2
    for i in 0..<half {
        if self[i] != self[self.count - 1 - i] {
            return false
        }
    }
    return true
}
<|file_separator|>
return leftSum <= w && rightSum <= w && left.isPalindromic() && right.isPalindromic() // value of type 'ArraySlice<Int>' has no member 'isPalindromic'
return leftSum <= w && rightSum <= w && left.isPalindromic() && right.isPalindromic() // value of type 'ArraySlice<Int>' has no member 'isPalindromic'
let half = self.count / 2 // cannot find 'self' in scope; did you mean to use it in a type or extension context?

func willItFly(q: [Int], w: Int) -> Bool {
    let max = q.reduce(0, +)
    if q.count == 1 {
        return true
    }
    if max > w {
        return false
    }
    var balanced = true
    var i = 0
    var j = q.count - 1
    while i < j {
        if q[i] != q[j] {
            balanced = false
            break
        }
        i += 1
        j -= 1
    }
    if balanced {
        return true
    }
    var sum = 0
    for i in 0..<q.count {
        sum += q[i]
        if sum > w {
            return false
        }
        if sum == w {
            return true
        }
    }
    return true
}
```swift
// Write a function that returns true if the object q will fly, and false otherwise.
// The object q will fly if it's balanced (it is a palindromic array) and the sum of its elements is less than or equal the maximum possible weight w.
// Example:
// # 1+2 is less than the maximum possible weight, but it's unbalanced.
// # it's balanced, but 3+2+3 is more than the maximum possible weight.
// # 3+2+3 is less than the maximum possible weight, and it's balanced.
// # 3 is less than the maximum possible weight, and it's balanced.
// willItFly(q: [1, 2], w: 5) == false
// willItFly(q: [3, 2, 3], w: 1) == false
// willItFly(q: [3, 2, 3], w: 9) == true
// willItFly(q: [3], w: 5) == true
func willItFly(q: [Int], w: Int) -> Bool {
    let max = q.reduce(0, +)
    if q.count == 1 {
        return true
    }
    if max > w {
        return false
    }
    var balanced = true
    var i = 0
    var j = q.count - 1
    while i < j {
        if q[i] != q[j] {
            balanced = false
            break
        }
        i += 1
        j -= 1
    }
    if balanced {
        return true
    }
    var sum = 0
    for i in 0..<q.count {
        sum += q[i]
        if sum > w {
            return false
        }
        if sum == w {
            return true
        }
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func smallestChange(arr: [Int]) -> Int {
    // Write your code here
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else {
            if arr[i] > arr[j] {
                arr[i] = arr[j]
                count += 1
                i += 1
            } else {
                arr[j] = arr[i]
                count += 1
                j -= 1
            }
        }
    }
    return count
}
```swift
// Given an array arr of integers, find the minimum number of elements that
// need to be changed to make the array palindromic. A palindromic array is an array that
// is read the same backwards and forwards. In one change, you can change one element to any other element.
// For example:
// smallestChange(arr: [1, 2, 3, 5, 4, 7, 9, 6]) == 4
// smallestChange(arr: [1, 2, 3, 4, 3, 2, 2]) == 1
// smallestChange(arr: [1, 2, 3, 2, 1]) == 0
func smallestChange(arr: [Int]) -> Int {
    // Write your code here
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else {
            if arr[i] > arr[j] {
                arr[i] = arr[j]
                count += 1
                i += 1
            } else {
                arr[j] = arr[i]
                count += 1
                j -= 1
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func smallestChange(arr: [Int]) -> Int {
    // Write your code here
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] != arr[j] {
            count += 1
        }
        i += 1
        j -= 1
    }
    return count
}
```swift
// Given an array arr of integers, find the minimum number of elements that
// need to be changed to make the array palindromic. A palindromic array is an array that
// is read the same backwards and forwards. In one change, you can change one element to any other element.
// For example:
// smallestChange(arr: [1, 2, 3, 5, 4, 7, 9, 6]) == 4
// smallestChange(arr: [1, 2, 3, 4, 3, 2, 2]) == 1
// smallestChange(arr: [1, 2, 3, 2, 1]) == 0
func smallestChange(arr: [Int]) -> Int {
    // Write your code here
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] != arr[j] {
            count += 1
        }
        i += 1
        j -= 1
    }
    return count
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant

func smallestChange(arr: [Int]) -> Int {
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else if arr[i] > arr[j] {
            arr[j] = arr[i]
            count += 1
            i += 1
        } else {
            arr[i] = arr[j]
            count += 1
            j -= 1
        }
    }
    return count
}
```swift
// Given an array arr of integers, find the minimum number of elements that
// need to be changed to make the array palindromic. A palindromic array is an array that
// is read the same backwards and forwards. In one change, you can change one element to any other element.
// For example:
// smallestChange(arr: [1, 2, 3, 5, 4, 7, 9, 6]) == 4
// smallestChange(arr: [1, 2, 3, 4, 3, 2, 2]) == 1
// smallestChange(arr: [1, 2, 3, 2, 1]) == 0
func smallestChange(arr: [Int]) -> Int {
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else if arr[i] > arr[j] {
            arr[j] = arr[i]
            count += 1
            i += 1
        } else {
            arr[i] = arr[j]
            count += 1
            j -= 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func smallestChange(arr: [Int]) -> Int {
    // Write your code here
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else {
            arr[i] = arr[j]
            count += 1
            i += 1
            j -= 1
        }
    }
    return count
}
```swift
// Given an array arr of integers, find the minimum number of elements that
// need to be changed to make the array palindromic. A palindromic array is an array that
// is read the same backwards and forwards. In one change, you can change one element to any other element.
// For example:
// smallestChange(arr: [1, 2, 3, 5, 4, 7, 9, 6]) == 4
// smallestChange(arr: [1, 2, 3, 4, 3, 2, 2]) == 1
// smallestChange(arr: [1, 2, 3, 2, 1]) == 0
func smallestChange(arr: [Int]) -> Int {
    // Write your code here
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else {
            arr[i] = arr[j]
            count += 1
            i += 1
            j -= 1
        }
    }
    return count
}<|file_separator|>```

func smallestChange(arr: [Int]) -> Int {
    // Write your code here
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else {
            arr[i] = arr[j]
            count += 1
            i += 1
            j -= 1
        }
    }
    return count
}
```swift
// Given an array arr of integers, find the minimum number of elements that
// need to be changed to make the array palindromic. A palindromic array is an array that
// is read the same backwards and forwards. In one change, you can change one element to any other element.
// For example:
// smallestChange(arr: [1, 2, 3, 5, 4, 7, 9, 6]) == 4
// smallestChange(arr: [1, 2, 3, 4, 3, 2, 2]) == 1
// smallestChange(arr: [1, 2, 3, 2, 1]) == 0
func smallestChange(arr: [Int]) -> Int {
    // Write your code here
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else {
            arr[i] = arr[j]
            count += 1
            i += 1
            j -= 1
        }
    }
    return count
}
<|file_separator|>

func smallestChange(arr: [Int]) -> Int {
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else if arr[i] > arr[j] {
            arr[j] = arr[i]
            count += 1
            j -= 1
        } else {
            arr[i] = arr[j]
            count += 1
            i += 1
        }
    }
    return count
}
```swift
// Given an array arr of integers, find the minimum number of elements that
// need to be changed to make the array palindromic. A palindromic array is an array that
// is read the same backwards and forwards. In one change, you can change one element to any other element.
// For example:
// smallestChange(arr: [1, 2, 3, 5, 4, 7, 9, 6]) == 4
// smallestChange(arr: [1, 2, 3, 4, 3, 2, 2]) == 1
// smallestChange(arr: [1, 2, 3, 2, 1]) == 0
func smallestChange(arr: [Int]) -> Int {
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else if arr[i] > arr[j] {
            arr[j] = arr[i]
            count += 1
            j -= 1
        } else {
            arr[i] = arr[j]
            count += 1
            i += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func smallestChange(arr: [Int]) -> Int {
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else {
            count += 1
            arr[i] = arr[j]
            i += 1
        }
    }
    return count
}
```swift
// Given an array arr of integers, find the minimum number of elements that
// need to be changed to make the array palindromic. A palindromic array is an array that
// is read the same backwards and forwards. In one change, you can change one element to any other element.
// For example:
// smallestChange(arr: [1, 2, 3, 5, 4, 7, 9, 6]) == 4
// smallestChange(arr: [1, 2, 3, 4, 3, 2, 2]) == 1
// smallestChange(arr: [1, 2, 3, 2, 1]) == 0
func smallestChange(arr: [Int]) -> Int {
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else {
            count += 1
            arr[i] = arr[j]
            i += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func smallestChange(arr: [Int]) -> Int {
    var arr = arr
    var count = 0
    for i in 0..<arr.count {
        if arr[i] != arr[arr.count - i - 1] {
            arr[i] = arr[arr.count - i - 1]
            count += 1
        }
    }
    return count
}
```swift
// Given an array arr of integers, find the minimum number of elements that
// need to be changed to make the array palindromic. A palindromic array is an array that
// is read the same backwards and forwards. In one change, you can change one element to any other element.
// For example:
// smallestChange(arr: [1, 2, 3, 5, 4, 7, 9, 6]) == 4
// smallestChange(arr: [1, 2, 3, 4, 3, 2, 2]) == 1
// smallestChange(arr: [1, 2, 3, 2, 1]) == 0
func smallestChange(arr: [Int]) -> Int {
    var arr = arr
    var count = 0
    for i in 0..<arr.count {
        if arr[i] != arr[arr.count - i - 1] {
            arr[i] = arr[arr.count - i - 1]
            count += 1
        }
    }
    return count
}
<|file_separator|>

func smallestChange(arr: [Int]) -> Int {
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else {
            if arr[i] < arr[j] {
                arr[i] += 1
                count += 1
            } else {
                arr[j] += 1
                count += 1
            }
        }
    }
    return count
}
```swift
// Given an array arr of integers, find the minimum number of elements that
// need to be changed to make the array palindromic. A palindromic array is an array that
// is read the same backwards and forwards. In one change, you can change one element to any other element.
// For example:
// smallestChange(arr: [1, 2, 3, 5, 4, 7, 9, 6]) == 4
// smallestChange(arr: [1, 2, 3, 4, 3, 2, 2]) == 1
// smallestChange(arr: [1, 2, 3, 2, 1]) == 0
func smallestChange(arr: [Int]) -> Int {
    var arr = arr
    var count = 0
    var i = 0
    var j = arr.count - 1
    while i < j {
        if arr[i] == arr[j] {
            i += 1
            j -= 1
        } else {
            if arr[i] < arr[j] {
                arr[i] += 1
                count += 1
            } else {
                arr[j] += 1
                count += 1
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func smallestChange(arr: [Int]) -> Int {
    // Write your code here
    var arr = arr
    var count = 0
    while !isPalindrome(arr) {
        var min = arr[0]
        var max = arr[0]
        var minIndex = 0
        var maxIndex = 0
        for i in 1..<arr.count {
            if arr[i] < min {
                min = arr[i]
                minIndex = i
            }
            if arr[i] > max {
                max = arr[i]
                maxIndex = i
            }
        }
        if minIndex < maxIndex {
            arr[minIndex] = max
            count += 1
        } else {
            arr[maxIndex] = min
            count += 1
        }
    }
    return count
}

func isPalindrome(_ arr: [Int]) -> Bool {
    for i in 0..<arr.count/2 {
        if arr[i] != arr[arr.count - i - 1] {
            return false
        }
    }
    return true
}
```swift
// Given an array arr of integers, find the minimum number of elements that
// need to be changed to make the array palindromic. A palindromic array is an array that
// is read the same backwards and forwards. In one change, you can change one element to any other element.
// For example:
// smallestChange(arr: [1, 2, 3, 5, 4, 7, 9, 6]) == 4
// smallestChange(arr: [1, 2, 3, 4, 3, 2, 2]) == 1
// smallestChange(arr: [1, 2, 3, 2, 1]) == 0
func smallestChange(arr: [Int]) -> Int {
    // Write your code here
    var arr = arr
    var count = 0
    while !isPalindrome(arr) {
        var min = arr[0]
        var max = arr[0]
        var minIndex = 0
        var maxIndex = 0
        for i in 1..<arr.count {
            if arr[i] < min {
                min = arr[i]
                minIndex = i
            }
            if arr[i] > max {
                max = arr[i]
                maxIndex = i
            }
        }
        if minIndex < maxIndex {
            arr[minIndex] = max
            count += 1
        } else {
            arr[maxIndex] = min
            count += 1
        }
    }
    return count
}

func isPalindrome(_ arr: [Int]) -> Bool {
    for i in 0..<arr.count/2 {
        if arr[i] != arr[arr.count - i - 1] {
            return false
        }
    }
    return true
}
<|file_separator|>

func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var result = [String]()
    var count1 = 0
    var count2 = 0
    for i in 0..<lst1.count {
        count1 += lst1[i].count
    }
    for i in 0..<lst2.count {
        count2 += lst2[i].count
    }
    if count1 > count2 {
        for i in 0..<lst2.count {
            if count1 - count2 > lst2[i].count {
                result.append(lst2[i])
            }
        }
    } else {
        for i in 0..<lst1.count {
            if count2 - count1 > lst1[i].count {
                result.append(lst1[i])
            }
        }
    }
    return result
}
```swift
// Write a function that accepts two arrays of strings and returns the array that has 
// total number of chars in the all strings of the array less than the other array.
// if the two arrays have the same number of chars, return the first array.
// Examples
// totalMatch(lst1: [] as [String], lst2: [] as [String]) == [] as [String]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "Hi"]) == ["hI", "Hi"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi", "admin", "project"]) == ["hi", "admin"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hi"]) == ["hI", "hi", "hi"]
// totalMatch(lst1: ["4"], lst2: ["1", "2", "3", "4", "5"]) == ["4"]
func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var result = [String]()
    var count1 = 0
    var count2 = 0
    for i in 0..<lst1.count {
        count1 += lst1[i].count
    }
    for i in 0..<lst2.count {
        count2 += lst2[i].count
    }
    if count1 > count2 {
        for i in 0..<lst2.count {
            if count1 - count2 > lst2[i].count {
                result.append(lst2[i])
            }
        }
    } else {
        for i in 0..<lst1.count {
            if count2 - count1 > lst1[i].count {
                result.append(lst1[i])
            }
        }
    }
    return result
}
<|file_separator|>```
 // XCTAssertTrue failed

func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var total = 0
    var result = [String]()
    for i in 0..<lst1.count {
        total += lst1[i].count
    }
    for i in 0..<lst2.count {
        total -= lst2[i].count
    }
    if total > 0 {
        result = lst1
    } else if total < 0 {
        result = lst2
    } else {
        result = lst1
    }
    return result
}
```swift
// Write a function that accepts two arrays of strings and returns the array that has 
// total number of chars in the all strings of the array less than the other array.
// if the two arrays have the same number of chars, return the first array.
// Examples
// totalMatch(lst1: [] as [String], lst2: [] as [String]) == [] as [String]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "Hi"]) == ["hI", "Hi"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi", "admin", "project"]) == ["hi", "admin"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hi"]) == ["hI", "hi", "hi"]
// totalMatch(lst1: ["4"], lst2: ["1", "2", "3", "4", "5"]) == ["4"]
func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var total = 0
    var result = [String]()
    for i in 0..<lst1.count {
        total += lst1[i].count
    }
    for i in 0..<lst2.count {
        total -= lst2[i].count
    }
    if total > 0 {
        result = lst1
    } else if total < 0 {
        result = lst2
    } else {
        result = lst1
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var result = [String]()
    var count = 0
    for i in 0..<lst1.count {
        for j in 0..<lst2.count {
            if lst1[i].count + lst2[j].count < count {
                count = lst1[i].count + lst2[j].count
            }
        }
        result.append(lst1[i])
    }
    return result
}
```swift
// Write a function that accepts two arrays of strings and returns the array that has 
// total number of chars in the all strings of the array less than the other array.
// if the two arrays have the same number of chars, return the first array.
// Examples
// totalMatch(lst1: [] as [String], lst2: [] as [String]) == [] as [String]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "Hi"]) == ["hI", "Hi"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi", "admin", "project"]) == ["hi", "admin"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hi"]) == ["hI", "hi", "hi"]
// totalMatch(lst1: ["4"], lst2: ["1", "2", "3", "4", "5"]) == ["4"]
func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var result = [String]()
    var count = 0
    for i in 0..<lst1.count {
        for j in 0..<lst2.count {
            if lst1[i].count + lst2[j].count < count {
                count = lst1[i].count + lst2[j].count
            }
        }
        result.append(lst1[i])
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var result = [String]()
    var count = 0
    for i in 0..<lst1.count {
        for j in 0..<lst2.count {
            if lst1[i].count + lst2[j].count < count {
                result.append(lst1[i])
                break
            }
        }
    }
    return result
}
```swift
// Write a function that accepts two arrays of strings and returns the array that has 
// total number of chars in the all strings of the array less than the other array.
// if the two arrays have the same number of chars, return the first array.
// Examples
// totalMatch(lst1: [] as [String], lst2: [] as [String]) == [] as [String]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "Hi"]) == ["hI", "Hi"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi", "admin", "project"]) == ["hi", "admin"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hi"]) == ["hI", "hi", "hi"]
// totalMatch(lst1: ["4"], lst2: ["1", "2", "3", "4", "5"]) == ["4"]
func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var result = [String]()
    var count = 0
    for i in 0..<lst1.count {
        for j in 0..<lst2.count {
            if lst1[i].count + lst2[j].count < count {
                result.append(lst1[i])
                break
            }
        }
    }
    return result
}
<|file_separator|>
var count = 0 // variable 'count' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var result = [String]()
    var total = 0
    for i in 0..<lst1.count {
        total += lst1[i].count
    }
    for i in 0..<lst2.count {
        total -= lst2[i].count
    }
    if total > 0 {
        result = lst1
    } else if total < 0 {
        result = lst2
    } else {
        result = lst1
    }
    return result
}
```swift
// Write a function that accepts two arrays of strings and returns the array that has 
// total number of chars in the all strings of the array less than the other array.
// if the two arrays have the same number of chars, return the first array.
// Examples
// totalMatch(lst1: [] as [String], lst2: [] as [String]) == [] as [String]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "Hi"]) == ["hI", "Hi"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi", "admin", "project"]) == ["hi", "admin"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hi"]) == ["hI", "hi", "hi"]
// totalMatch(lst1: ["4"], lst2: ["1", "2", "3", "4", "5"]) == ["4"]
func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var result = [String]()
    var total = 0
    for i in 0..<lst1.count {
        total += lst1[i].count
    }
    for i in 0..<lst2.count {
        total -= lst2[i].count
    }
    if total > 0 {
        result = lst1
    } else if total < 0 {
        result = lst2
    } else {
        result = lst1
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var result = [String]()
    var sum1 = 0
    var sum2 = 0
    for i in lst1 {
        sum1 += i.count
    }
    for i in lst2 {
        sum2 += i.count
    }
    if sum1 > sum2 {
        for i in lst2 {
            result.append(i)
        }
        for i in lst1 {
            if i.count < sum2 {
                result.append(i)
            }
        }
    } else if sum1 < sum2 {
        for i in lst1 {
            result.append(i)
        }
        for i in lst2 {
            if i.count < sum1 {
                result.append(i)
            }
        }
    } else {
        for i in lst1 {
            result.append(i)
        }
        for i in lst2 {
            result.append(i)
        }
    }
    return result
}
```swift
// Write a function that accepts two arrays of strings and returns the array that has 
// total number of chars in the all strings of the array less than the other array.
// if the two arrays have the same number of chars, return the first array.
// Examples
// totalMatch(lst1: [] as [String], lst2: [] as [String]) == [] as [String]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "Hi"]) == ["hI", "Hi"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi", "admin", "project"]) == ["hi", "admin"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hi"]) == ["hI", "hi", "hi"]
// totalMatch(lst1: ["4"], lst2: ["1", "2", "3", "4", "5"]) == ["4"]
func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var result = [String]()
    var sum1 = 0
    var sum2 = 0
    for i in lst1 {
        sum1 += i.count
    }
    for i in lst2 {
        sum2 += i.count
    }
    if sum1 > sum2 {
        for i in lst2 {
            result.append(i)
        }
        for i in lst1 {
            if i.count < sum2 {
                result.append(i)
            }
        }
    } else if sum1 < sum2 {
        for i in lst1 {
            result.append(i)
        }
        for i in lst2 {
            if i.count < sum1 {
                result.append(i)
            }
        }
    } else {
        for i in lst1 {
            result.append(i)
        }
        for i in lst2 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func totalMatch(lst1: [String], lst2: [String]) -> [String] {
  var result = [String]()
  var total1 = 0
  var total2 = 0
  for i in 0..<lst1.count {
    total1 += lst1[i].count
  }
  for i in 0..<lst2.count {
    total2 += lst2[i].count
  }
  if total1 < total2 {
    for i in 0..<lst1.count {
      result.append(lst1[i])
    }
  } else if total1 > total2 {
    for i in 0..<lst2.count {
      result.append(lst2[i])
    }
  } else {
    result = lst1
  }
  return result
}
```swift
// Write a function that accepts two arrays of strings and returns the array that has 
// total number of chars in the all strings of the array less than the other array.
// if the two arrays have the same number of chars, return the first array.
// Examples
// totalMatch(lst1: [] as [String], lst2: [] as [String]) == [] as [String]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "Hi"]) == ["hI", "Hi"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi", "admin", "project"]) == ["hi", "admin"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hi"]) == ["hI", "hi", "hi"]
// totalMatch(lst1: ["4"], lst2: ["1", "2", "3", "4", "5"]) == ["4"]
func totalMatch(lst1: [String], lst2: [String]) -> [String] {
  var result = [String]()
  var total1 = 0
  var total2 = 0
  for i in 0..<lst1.count {
    total1 += lst1[i].count
  }
  for i in 0..<lst2.count {
    total2 += lst2[i].count
  }
  if total1 < total2 {
    for i in 0..<lst1.count {
      result.append(lst1[i])
    }
  } else if total1 > total2 {
    for i in 0..<lst2.count {
      result.append(lst2[i])
    }
  } else {
    result = lst1
  }
  return result
}
<|file_separator|>

```swift
// Write a function that accepts two arrays of strings and returns the array that has 
// total number of chars in the all strings of the array less than the other array.
// if the two arrays have the same number of chars, return the first array.
// Examples
// totalMatch(lst1: [] as [String], lst2: [] as [String]) == [] as [String]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "Hi"]) == ["hI", "Hi"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi", "admin", "project"]) == ["hi", "admin"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hi"]) == ["hI", "hi", "hi"]
// totalMatch(lst1: ["4"], lst2: ["1", "2", "3", "4", "5"]) == ["4"]
func totalMatch(lst1: [String], lst2: [String]) -> [String] {
  var total = 0
  var total2 = 0
  var total3 = 0
  var total4 = 0
  var total5 = 0
  var total6 = 0
  var total7 = 0
  var total8 = 0
  var total9 = 0
  var total10 = 0
  var total11 = 0
  var total12 = 0
  var total13 = 0
  var total14 = 0
  var total15 = 0
  var total16 = 0
  var total17 = 0
  var total18 = 0
  var total19 = 0
  var total20 = 0
  var total21 = 0
  var total22 = 0
  var total23 = 0
  var total24 = 0
  var total25 = 0
  var total26 = 0
  var total27 = 0
  var total28 = 0
  var total29 = 0
  var total30 = 0
  var total31 = 0
  var total32 = 0
  var total33 = 0
  var total34 = 0
  var total35 = 0
  var total36 = 0
  var total37 = 0
  var total38 = 0
  var total39 = 0
  var total40 = 0
  var total41 = 0
  var total42 = 0
  var total43 = 0
  var total44 = 0
  var total45 = 0
  var total46 = 0
  var total47 = 0
  var total48 = 0
  var total49 = 0
  var total50 = 0
  var total51 = 0
  var total52 = 0
  var total53 = 0
  var total54 = 0
  var total55 = 0
  var total56 = 0
  var total57 = 0
  var total58 = 0
  var total59 = 0
  var total60 = 0
  var total61 = 0
  var total62 = 0
  var total63 = 0
  var total64 = 0
  var total65 = 0
  var total66 = 0
  var total67 = 0
  var total68 = 0
  var total69 = 0
  var total70 = 0
  var total71 = 0
  var total72 = 0
  var total73 = 0
  var total74 = 0
  var total75 = 0
  var total76 = 0
  var total77 = 0
  var total78 = 0
  var total79 = 0
  var total80 = 0
  var total81 = 0
  var total82 = 0
  var total83 = 0
  var total84 = 0
  var total85 = 0
  var total86 = 0
  var total87 = 0
  var total88 = 0
  var total89 = 0
  var total90 = 0
  var total91 = 0
  var total92 = 0
  var total93 = 0
  var total94 = 0
  var total95 = 0
  var total96 = 0
  var total97 = 0
  var total98 = 0
  var total99 = 0
  var total100 = 0
  var total101 = 0
  var total102 = 0
  var total103 = 0
  var total104 = 0
  var total105 = 0
  var total106 = 0
  var total107 = 0
  var total108 = 0
  var total109 = 0
  var total110 = 0
  var total111 = 0
  var total112 = 0
  var total113 = 0
  var
XCTAssertTrue(totalMatch(lst1: [] as [String], lst2: [] as [String]) == [] as [String]) // cannot find 'totalMatch' in scope
XCTAssertTrue(totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi"]) == ["hi", "hi"]) // cannot find 'totalMatch' in scope
XCTAssertTrue(totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi", "admin", "project"]) == ["hi", "admin"]) // cannot find 'totalMatch' in scope
XCTAssertTrue(totalMatch(lst1: ["4"], lst2: ["1", "2", "3", "4", "5"]) == ["4"]) // cannot find 'totalMatch' in scope
XCTAssertTrue(totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "Hi"]) == ["hI", "Hi"]) // cannot find 'totalMatch' in scope
XCTAssertTrue(totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hi"]) == ["hI", "hi", "hi"]) // cannot find 'totalMatch' in scope
XCTAssertTrue(totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hii"]) == ["hi", "admin"]) // cannot find 'totalMatch' in scope
XCTAssertTrue(totalMatch(lst1: [] as [String], lst2: ["this"]) == [] as [String]) // cannot find 'totalMatch' in scope
XCTAssertTrue(totalMatch(lst1: ["this"], lst2: [] as [String]) == [] as [String]) // cannot find 'totalMatch' in scope

func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var total1 = 0
    var total2 = 0
    for i in 0..<lst1.count {
        total1 += lst1[i].count
    }
    for i in 0..<lst2.count {
        total2 += lst2[i].count
    }
    if total1 > total2 {
        return lst2
    } else if total1 < total2 {
        return lst1
    } else {
        return lst1
    }
}
```swift
// Write a function that accepts two arrays of strings and returns the array that has 
// total number of chars in the all strings of the array less than the other array.
// if the two arrays have the same number of chars, return the first array.
// Examples
// totalMatch(lst1: [] as [String], lst2: [] as [String]) == [] as [String]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "Hi"]) == ["hI", "Hi"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi", "admin", "project"]) == ["hi", "admin"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hi"]) == ["hI", "hi", "hi"]
// totalMatch(lst1: ["4"], lst2: ["1", "2", "3", "4", "5"]) == ["4"]
func totalMatch(lst1: [String], lst2: [String]) -> [String] {
    var total1 = 0
    var total2 = 0
    for i in 0..<lst1.count {
        total1 += lst1[i].count
    }
    for i in 0..<lst2.count {
        total2 += lst2[i].count
    }
    if total1 > total2 {
        return lst2
    } else if total1 < total2 {
        return lst1
    } else {
        return lst1
    }
}
<|file_separator|>

func totalMatch(lst1: [String], lst2: [String]) -> [String] {
  var total = 0
  var total2 = 0
  var result = [String]()
  for i in 0..<lst1.count {
    total += lst1[i].count
  }
  for i in 0..<lst2.count {
    total2 += lst2[i].count
  }
  if total < total2 {
    result = lst1
  } else if total > total2 {
    result = lst2
  } else {
    result = lst1
  }
  return result
}
```swift
// Write a function that accepts two arrays of strings and returns the array that has 
// total number of chars in the all strings of the array less than the other array.
// if the two arrays have the same number of chars, return the first array.
// Examples
// totalMatch(lst1: [] as [String], lst2: [] as [String]) == [] as [String]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "Hi"]) == ["hI", "Hi"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hi", "hi", "admin", "project"]) == ["hi", "admin"]
// totalMatch(lst1: ["hi", "admin"], lst2: ["hI", "hi", "hi"]) == ["hI", "hi", "hi"]
// totalMatch(lst1: ["4"], lst2: ["1", "2", "3", "4", "5"]) == ["4"]
func totalMatch(lst1: [String], lst2: [String]) -> [String] {
  var total = 0
  var total2 = 0
  var result = [String]()
  for i in 0..<lst1.count {
    total += lst1[i].count
  }
  for i in 0..<lst2.count {
    total2 += lst2[i].count
  }
  if total < total2 {
    result = lst1
  } else if total > total2 {
    result = lst2
  } else {
    result = lst1
  }
  return result
}
<|file_separator|>

func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i < a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    if isPrime {
        return true
    }
    return false
}
```swift
// Write a function that returns true if the given number is the multiplication of 3 prime numbers
// and false otherwise.
// Knowing that (a) is less then 100. 
// Example:
// 30 = 2 * 3 * 5
// isMultiplyPrime(a: 30) == true
func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i < a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    if isPrime {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i < a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    if isPrime {
        return true
    }
    return false
}
```swift
// Write a function that returns true if the given number is the multiplication of 3 prime numbers
// and false otherwise.
// Knowing that (a) is less then 100. 
// Example:
// 30 = 2 * 3 * 5
// isMultiplyPrime(a: 30) == true
func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i < a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    if isPrime {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i * i <= a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    return isPrime
}
```swift
// Write a function that returns true if the given number is the multiplication of 3 prime numbers
// and false otherwise.
// Knowing that (a) is less then 100. 
// Example:
// 30 = 2 * 3 * 5
// isMultiplyPrime(a: 30) == true
func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i * i <= a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    return isPrime
}

func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i * i <= a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    return isPrime
}
<|file_separator|>
 // XCTAssertTrue failed

func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i < a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    if isPrime {
        return true
    }
    return false
}
```swift
// Write a function that returns true if the given number is the multiplication of 3 prime numbers
// and false otherwise.
// Knowing that (a) is less then 100. 
// Example:
// 30 = 2 * 3 * 5
// isMultiplyPrime(a: 30) == true
func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i < a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    if isPrime {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i < a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    if isPrime {
        return false
    }
    return true
}
```swift
// Write a function that returns true if the given number is the multiplication of 3 prime numbers
// and false otherwise.
// Knowing that (a) is less then 100. 
// Example:
// 30 = 2 * 3 * 5
// isMultiplyPrime(a: 30) == true
func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i < a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    if isPrime {
        return false
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i < a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    if isPrime {
        return true
    }
    return false
}
```swift
// Write a function that returns true if the given number is the multiplication of 3 prime numbers
// and false otherwise.
// Knowing that (a) is less then 100. 
// Example:
// 30 = 2 * 3 * 5
// isMultiplyPrime(a: 30) == true
func isMultiplyPrime(a: Int) -> Bool {
    var isPrime = true
    var i = 2
    while i < a {
        if a % i == 0 {
            isPrime = false
            break
        }
        i += 1
    }
    if isPrime {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func isMultiplyPrime(a: Int) -> Bool {
    var prime = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97]
    var result = false
    for i in 0...prime.count-1 {
        for j in 0...prime.count-1 {
            for k in 0...prime.count-1 {
                if prime[i] * prime[j] * prime[k] == a {
                    result = true
                }
            }
        }
    }
    return result
}
```swift
// Write a function that returns true if the given number is the multiplication of 3 prime numbers
// and false otherwise.
// Knowing that (a) is less then 100. 
// Example:
// 30 = 2 * 3 * 5
// isMultiplyPrime(a: 30) == true
func isMultiplyPrime(a: Int) -> Bool {
    var prime = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97]
    var result = false
    for i in 0...prime.count-1 {
        for j in 0...prime.count-1 {
            for k in 0...prime.count-1 {
                if prime[i] * prime[j] * prime[k] == a {
                    result = true
                }
            }
        }
    }
    return result
}
<|file_separator|>
var prime = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97] // variable 'prime' was never mutated; consider changing to 'let' constant

func isMultiplyPrime(a: Int) -> Bool {
    var prime = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97]
    var result = true
    for i in 0...prime.count-1 {
        for j in 0...prime.count-1 {
            for k in 0...prime.count-1 {
                if prime[i] * prime[j] * prime[k] == a {
                    result = true
                    return result
                }
            }
        }
    }
    return result
}
```swift
// Write a function that returns true if the given number is the multiplication of 3 prime numbers
// and false otherwise.
// Knowing that (a) is less then 100. 
// Example:
// 30 = 2 * 3 * 5
// isMultiplyPrime(a: 30) == true
func isMultiplyPrime(a: Int) -> Bool {
    var prime = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97]
    var result = true
    for i in 0...prime.count-1 {
        for j in 0...prime.count-1 {
            for k in 0...prime.count-1 {
                if prime[i] * prime[j] * prime[k] == a {
                    result = true
                    return result
                }
            }
        }
    }
    return result
}
<|file_separator|>
var prime = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97] // variable 'prime' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func isMultiplyPrime(a: Int) -> Bool {
    var prime = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29]
    var isMultiplyPrime = false
    for i in 0..<prime.count {
        for j in 0..<prime.count {
            for k in 0..<prime.count {
                if prime[i] * prime[j] * prime[k] == a {
                    isMultiplyPrime = true
                    break
                }
            }
        }
    }
    return isMultiplyPrime
}
```swift
// Write a function that returns true if the given number is the multiplication of 3 prime numbers
// and false otherwise.
// Knowing that (a) is less then 100. 
// Example:
// 30 = 2 * 3 * 5
// isMultiplyPrime(a: 30) == true
func isMultiplyPrime(a: Int) -> Bool {
    var prime = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29]
    var isMultiplyPrime = false
    for i in 0..<prime.count {
        for j in 0..<prime.count {
            for k in 0..<prime.count {
                if prime[i] * prime[j] * prime[k] == a {
                    isMultiplyPrime = true
                    break
                }
            }
        }
    }
    return isMultiplyPrime
}
<|file_separator|>
var prime = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29] // variable 'prime' was never mutated; consider changing to 'let' constant

func isMultiplyPrime(a: Int) -> Bool {
    var isMultiplyPrime = false
    for i in 2...99 {
        for j in 2...99 {
            for k in 2...99 {
                if i * j * k == a {
                    isMultiplyPrime = true
                }
            }
        }
    }
    return isMultiplyPrime
}
```swift
// Write a function that returns true if the given number is the multiplication of 3 prime numbers
// and false otherwise.
// Knowing that (a) is less then 100. 
// Example:
// 30 = 2 * 3 * 5
// isMultiplyPrime(a: 30) == true
func isMultiplyPrime(a: Int) -> Bool {
    var isMultiplyPrime = false
    for i in 2...99 {
        for j in 2...99 {
            for k in 2...99 {
                if i * j * k == a {
                    isMultiplyPrime = true
                }
            }
        }
    }
    return isMultiplyPrime
}
<|file_separator|>
 // XCTAssertTrue failed

func isSimplePower(x: Int, n: Int) -> Bool {
    var result = 1
    for _ in 1...n {
        result *= x
        if result > x {
            return false
        }
    }
    return result == x
}
```swift
// Your task is to write a function that returns true if a number x is a simple
// power of n and false in other cases.
// x is a simple power of n if n**int=x
// For example:
// isSimplePower(x: 1, n: 4) == true
// isSimplePower(x: 2, n: 2) == true
// isSimplePower(x: 8, n: 2) == true
// isSimplePower(x: 3, n: 2) == false
// isSimplePower(x: 3, n: 1) == false
// isSimplePower(x: 5, n: 3) == false
func isSimplePower(x: Int, n: Int) -> Bool {
    var result = 1
    for _ in 1...n {
        result *= x
        if result > x {
            return false
        }
    }
    return result == x
}
<|file_separator|>
 // XCTAssertTrue failed

func isSimplePower(x: Int, n: Int) -> Bool {
    var result = false
    var i = 0
    var pow = 1
    while pow <= x {
        if pow == x {
            result = true
            break
        }
        pow *= n
        i += 1
    }
    return result
}
```swift
// Your task is to write a function that returns true if a number x is a simple
// power of n and false in other cases.
// x is a simple power of n if n**int=x
// For example:
// isSimplePower(x: 1, n: 4) == true
// isSimplePower(x: 2, n: 2) == true
// isSimplePower(x: 8, n: 2) == true
// isSimplePower(x: 3, n: 2) == false
// isSimplePower(x: 3, n: 1) == false
// isSimplePower(x: 5, n: 3) == false
func isSimplePower(x: Int, n: Int) -> Bool {
    var result = false
    var i = 0
    var pow = 1
    while pow <= x {
        if pow == x {
            result = true
            break
        }
        pow *= n
        i += 1
    }
    return result
}
<|file_separator|>

func isSimplePower(x: Int, n: Int) -> Bool {
    if n == 1 {
        return true
    }
    var i = 1
    while i * i <= x {
        if i * i == x {
            return true
        }
        i += 1
    }
    return false
}
```swift
// Your task is to write a function that returns true if a number x is a simple
// power of n and false in other cases.
// x is a simple power of n if n**int=x
// For example:
// isSimplePower(x: 1, n: 4) == true
// isSimplePower(x: 2, n: 2) == true
// isSimplePower(x: 8, n: 2) == true
// isSimplePower(x: 3, n: 2) == false
// isSimplePower(x: 3, n: 1) == false
// isSimplePower(x: 5, n: 3) == false
func isSimplePower(x: Int, n: Int) -> Bool {
    if n == 1 {
        return true
    }
    var i = 1
    while i * i <= x {
        if i * i == x {
            return true
        }
        i += 1
    }
    return false
}
<|file_separator|>

func isSimplePower(x: Int, n: Int) -> Bool {
    return Int(pow(Double(n), Double(x))) == x
}
```swift
// Your task is to write a function that returns true if a number x is a simple
// power of n and false in other cases.
// x is a simple power of n if n**int=x
// For example:
// isSimplePower(x: 1, n: 4) == true
// isSimplePower(x: 2, n: 2) == true
// isSimplePower(x: 8, n: 2) == true
// isSimplePower(x: 3, n: 2) == false
// isSimplePower(x: 3, n: 1) == false
// isSimplePower(x: 5, n: 3) == false
func isSimplePower(x: Int, n: Int) -> Bool {
    return Int(pow(Double(n), Double(x))) == x
}
<|file_separator|>
 // XCTAssertTrue failed

func isSimplePower(x: Int, n: Int) -> Bool {
    return pow(Double(n), Double(x)) == Double(x)
}
```swift
// Your task is to write a function that returns true if a number x is a simple
// power of n and false in other cases.
// x is a simple power of n if n**int=x
// For example:
// isSimplePower(x: 1, n: 4) == true
// isSimplePower(x: 2, n: 2) == true
// isSimplePower(x: 8, n: 2) == true
// isSimplePower(x: 3, n: 2) == false
// isSimplePower(x: 3, n: 1) == false
// isSimplePower(x: 5, n: 3) == false
func isSimplePower(x: Int, n: Int) -> Bool {
    return pow(Double(n), Double(x)) == Double(x)
}
<|file_separator|>
 // XCTAssertTrue failed

func isSimplePower(x: Int, n: Int) -> Bool {
    var x = x
    var n = n
    while n > 0 {
        if x % n != 0 {
            return false
        }
        x /= n
        n -= 1
    }
    return x == 1
}
```swift
// Your task is to write a function that returns true if a number x is a simple
// power of n and false in other cases.
// x is a simple power of n if n**int=x
// For example:
// isSimplePower(x: 1, n: 4) == true
// isSimplePower(x: 2, n: 2) == true
// isSimplePower(x: 8, n: 2) == true
// isSimplePower(x: 3, n: 2) == false
// isSimplePower(x: 3, n: 1) == false
// isSimplePower(x: 5, n: 3) == false
func isSimplePower(x: Int, n: Int) -> Bool {
    var x = x
    var n = n
    while n > 0 {
        if x % n != 0 {
            return false
        }
        x /= n
        n -= 1
    }
    return x == 1
}
<|file_separator|>
 // XCTAssertTrue failed

func isSimplePower(x: Int, n: Int) -> Bool {
    var x = x
    var n = n
    while x > 1 {
        if x % n != 0 {
            return false
        }
        x /= n
    }
    return true
}
```swift
// Your task is to write a function that returns true if a number x is a simple
// power of n and false in other cases.
// x is a simple power of n if n**int=x
// For example:
// isSimplePower(x: 1, n: 4) == true
// isSimplePower(x: 2, n: 2) == true
// isSimplePower(x: 8, n: 2) == true
// isSimplePower(x: 3, n: 2) == false
// isSimplePower(x: 3, n: 1) == false
// isSimplePower(x: 5, n: 3) == false
func isSimplePower(x: Int, n: Int) -> Bool {
    var x = x
    var n = n
    while x > 1 {
        if x % n != 0 {
            return false
        }
        x /= n
    }
    return true
}
<|file_separator|>
var n = n // variable 'n' was never mutated; consider changing to 'let' constant

func isSimplePower(x: Int, n: Int) -> Bool {
    var x = x
    var n = n
    while x % n == 0 {
        x /= n
    }
    return x == 1
}
```swift
// Your task is to write a function that returns true if a number x is a simple
// power of n and false in other cases.
// x is a simple power of n if n**int=x
// For example:
// isSimplePower(x: 1, n: 4) == true
// isSimplePower(x: 2, n: 2) == true
// isSimplePower(x: 8, n: 2) == true
// isSimplePower(x: 3, n: 2) == false
// isSimplePower(x: 3, n: 1) == false
// isSimplePower(x: 5, n: 3) == false
func isSimplePower(x: Int, n: Int) -> Bool {
    var x = x
    var n = n
    while x % n == 0 {
        x /= n
    }
    return x == 1
}
<|file_separator|>
var n = n // variable 'n' was never mutated; consider changing to 'let' constant

func isSimplePower(x: Int, n: Int) -> Bool {
    if x == 0 || n == 0 {
        return false
    }
    var x = x
    var n = n
    while x % n == 0 {
        x /= n
    }
    return x == 1
}
```swift
// Your task is to write a function that returns true if a number x is a simple
// power of n and false in other cases.
// x is a simple power of n if n**int=x
// For example:
// isSimplePower(x: 1, n: 4) == true
// isSimplePower(x: 2, n: 2) == true
// isSimplePower(x: 8, n: 2) == true
// isSimplePower(x: 3, n: 2) == false
// isSimplePower(x: 3, n: 1) == false
// isSimplePower(x: 5, n: 3) == false
func isSimplePower(x: Int, n: Int) -> Bool {
    if x == 0 || n == 0 {
        return false
    }
    var x = x
    var n = n
    while x % n == 0 {
        x /= n
    }
    return x == 1
}
<|file_separator|>
var n = n // variable 'n' was never mutated; consider changing to 'let' constant

func isSimplePower(x: Int, n: Int) -> Bool {
    var x = x
    var n = n
    while x % n == 0 {
        x /= n
    }
    return x == 1
}
```swift
// Your task is to write a function that returns true if a number x is a simple
// power of n and false in other cases.
// x is a simple power of n if n**int=x
// For example:
// isSimplePower(x: 1, n: 4) == true
// isSimplePower(x: 2, n: 2) == true
// isSimplePower(x: 8, n: 2) == true
// isSimplePower(x: 3, n: 2) == false
// isSimplePower(x: 3, n: 1) == false
// isSimplePower(x: 5, n: 3) == false
func isSimplePower(x: Int, n: Int) -> Bool {
    var x = x
    var n = n
    while x % n == 0 {
        x /= n
    }
    return x == 1
}
<|file_separator|>
var n = n // variable 'n' was never mutated; consider changing to 'let' constant

func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}

func vowels(s: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    return s.lowercased().filter { vowels.contains($0) }.count
}

func consonants(s: String) -> Int {
    let consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"]
    return s.lowercased().filter { consonants.contains($0) }.count
}

func words(s: String) -> Int {
    return s.split(separator: " ").count
}

func digits(s: String) -> Int {
    return s.filter { $0.isDigit() }.count
}

func uppercase(s: String) -> Int {
    return s.filter { $0.isUppercase() }.count
}

func lowercase(s: String) -> Int {
    return s.filter { $0.isLowercase() }.count
}

func spaces(s: String) -> Int {
    return s.filter { $0.isWhitespace() }.count
}

func punctuation(s: String) -> Int {
    return s.filter { $0.isPunctuation() }.count
}

func special(s: String) -> Int {
    return s.filter { !$0.isLetter() && !$0.isNumber() && !$0.isWhitespace() && !$0.isPunctuation() }.count
}

func characters(s: String) -> Int {
    return s.count
}
```swift
// Write a function that takes an integer a and returns true 
// if this ingeger is a cube of some integer number.
// Note: you may assume the input is always valid.
// Examples:
// iscube(a: 1) == true
// iscube(a: 2) == false
// iscube(a: -1) == true
// iscube(a: 64) == true
// iscube(a: 0) == true
// iscube(a: 180) == false
func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}

// Write a function that takes a string and returns the number of vowels in the string.
// Examples:
// vowels("Hello") == 2
// vowels("World") == 3
// vowels("Hello World") == 5
func vowels(s: String) -> Int {
    let vowels = ["a", "e", "i", "o", "u"]
    return s.lowercased().filter { vowels.contains($0) }.count
}

// Write a function that takes a string and returns the number of consonants in the string.
// Examples:
// consonants("Hello") == 3
// consonants("World") == 4
// consonants("Hello World") == 10
func consonants(s: String) -> Int {
    let consonants = ["b", "c", "d", "f", "g", "h", "j", "k", "l", "m", "n", "p", "q", "r", "s", "t", "v", "w", "x", "y", "z"]
    return s.lowercased().filter { consonants.contains($0) }.count
}

// Write a function that takes a string and returns the number of words in the string.
// Examples:
// words("Hello") == 1
// words("World") == 1
// words("Hello World") == 2
func words(s: String) -> Int {
    return s.split(separator: " ").count
}

// Write a function that takes a string and returns the number of digits in the string.
// Examples:
// digits("Hello") == 0
// digits("World") == 0
// digits("Hello World") == 1
func digits(s: String) -> Int {
    return s.filter { $0.isDigit() }.count
}

// Write a function that takes a string and returns the number of uppercase letters in the string.
// Examples:
// uppercase("Hello") == 2
// uppercase("World") == 0
// uppercase("Hello World") == 3
func uppercase(s: String) -> Int {
    return s.filter { $0.isUppercase() }.count
}

// Write a function that takes a string and returns the number of lowercase letters in the string.
// Examples:
// lowercase("Hello") == 2
// lowercase("World") == 0
// lowercase("Hello World") == 5
func lowercase(s: String) -> Int {
    return s.filter { $0.isLowercase() }.count
}

// Write a function that takes a string and returns the number of spaces in the string.
// Examples:
// spaces("Hello") == 0
// spaces("World") == 0
// spaces("Hello World") == 1
func spaces(s: String) -> Int {
    return s.filter { $0.isWhitespace() }.count
}

// Write a function that takes a string and returns the number of punctuation marks in the string.
// Examples:
// punctuation("Hello") == 0
// punctuation("World") == 0
// punctuation("Hello World") == 0
func punctuation(s: String) -> Int {
    return s.filter { $0.isPunctuation() }.count
}

// Write a function that takes a string and returns the number of special characters in the string.
// Examples:
// special("Hello") == 0
// special("World") == 0
// special("Hello World") == 0
func special(s: String) -> Int {
    return s.filter { !$0.isLetter() && !$0.isNumber() && !$0.isWhitespace() && !$0.isPunctuation() }.count
}

// Write a function that takes a string and returns the number of characters in the string.
// Examples:
// characters("Hello") == 5
// characters("World") == 5
// characters("Hello World") == 10
func characters(s: String) -> Int {
    return s.count
}

// Write a function that takes a string and returns the number of words in the string that are longer than 5 characters.
// Examples:
// longer_than_5("Hello") == 0
// longer_than_5("World") == 0
// longer_than_5("Hello World") == 1
func longer_than_5(s: String) -> Int {
    return s.split(separator: " ").filter
return s.lowercased().filter { vowels.contains($0) }.count // cannot convert value of type 'String.Element' (aka 'Character') to expected argument type 'String'
return s.lowercased().filter { consonants.contains($0) }.count // cannot convert value of type 'String.Element' (aka 'Character') to expected argument type 'String'
return s.filter { $0.isDigit() }.count // value of type 'String.Element' (aka 'Character') has no member 'isDigit'
return s.filter { $0.isUppercase() }.count // trailing closure passed to parameter of type 'Predicate<String.Element>' (aka 'Predicate<Character>') that does not accept a closure
return s.filter { $0.isLowercase() }.count // trailing closure passed to parameter of type 'Predicate<String.Element>' (aka 'Predicate<Character>') that does not accept a closure
return s.filter { $0.isWhitespace() }.count // trailing closure passed to parameter of type 'Predicate<String.Element>' (aka 'Predicate<Character>') that does not accept a closure
return s.filter { $0.isPunctuation() }.count // trailing closure passed to parameter of type 'Predicate<String.Element>' (aka 'Predicate<Character>') that does not accept a closure
return s.filter { !$0.isLetter() && !$0.isNumber() && !$0.isWhitespace() && !$0.isPunctuation() }.count // trailing closure passed to parameter of type 'Predicate<String.Element>' (aka 'Predicate<Character>') that does not accept a closure

func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}

func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}
```swift
// Write a function that takes an integer a and returns true 
// if this ingeger is a cube of some integer number.
// Note: you may assume the input is always valid.
// Examples:
// iscube(a: 1) == true
// iscube(a: 2) == false
// iscube(a: -1) == true
// iscube(a: 64) == true
// iscube(a: 0) == true
// iscube(a: 180) == false
func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == false
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar")
 // Fatal error: Double value cannot be converted to Int because it is either infinite or NaN

func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}
```swift
// Write a function that takes an integer a and returns true 
// if this ingeger is a cube of some integer number.
// Note: you may assume the input is always valid.
// Examples:
// iscube(a: 1) == true
// iscube(a: 2) == false
// iscube(a: -1) == true
// iscube(a: 64) == true
// iscube(a: 0) == true
// iscube(a: 180) == false
func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}
<|file_separator|>
 // Fatal error: Double value cannot be converted to Int because it is either infinite or NaN

func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}
```swift
// Write a function that takes an integer a and returns true 
// if this ingeger is a cube of some integer number.
// Note: you may assume the input is always valid.
// Examples:
// iscube(a: 1) == true
// iscube(a: 2) == false
// iscube(a: -1) == true
// iscube(a: 64) == true
// iscube(a: 0) == true
// iscube(a: 180) == false
func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}
<|file_separator|>
 // Fatal error: Double value cannot be converted to Int because it is either infinite or NaN

func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}
```swift
// Write a function that takes an integer a and returns true 
// if this ingeger is a cube of some integer number.
// Note: you may assume the input is always valid.
// Examples:
// iscube(a: 1) == true
// iscube(a: 2) == false
// iscube(a: -1) == true
// iscube(a: 64) == true
// iscube(a: 0) == true
// iscube(a: 180) == false
func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
 // Fatal error: Double value cannot be converted to Int because it is either infinite or NaN

func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}

func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}
```swift
// Write a function that takes an integer a and returns true 
// if this ingeger is a cube of some integer number.
// Note: you may assume the input is always valid.
// Examples:
// iscube(a: 1) == true
// iscube(a: 2) == false
// iscube(a: -1) == true
// iscube(a: 64) == true
// iscube(a: 0) == true
// iscube(a: 180) == false
func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "hello") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "hello") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "hello") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "hello") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "hello") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "hello") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "hello") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "hello") == false
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "racecar") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "racecar") == true
// ispalindrome(a: "hello") == false
// ispalindrome(a:
 // Fatal error: Double value cannot be converted to Int because it is either infinite or NaN

func iscube(a: Int) -> Bool {
    var i = 0
    while i*i*i <= a {
        if i*i*i == a {
            return true
        }
        i += 1
    }
    return false
}

func vowels(s: String) -> Int {
    let vowels = "aeiou"
    var count = 0
    for char in s {
        if vowels.contains(char) {
            count += 1
        }
    }
    return count
}

func consonants(s: String) -> Int {
    let consonants = "bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ"
    var count = 0
    for char in s {
        if consonants.contains(char) {
            count += 1
        }
    }
    return count
}

func words(s: String) -> Int {
    let words = s.split(separator: " ")
    return words.count
}

func digits(s: String) -> Int {
    var count = 0
    for char in s {
        if char.isNumber {
            count += 1
        }
    }
    return count
}

func spaces(s: String) -> Int {
    var count = 0
    for char in s {
        if char.isWhitespace {
            count += 1
        }
    }
    return count
}

func punctuation(s: String) -> Int {
    var count = 0
    for char in s {
        if char.isPunctuation {
            count += 1
        }
    }
    return count
}

func uppercase(s: String) -> Int {
    var count = 0
    for char in s {
        if char.isUppercase {
            count += 1
        }
    }
    return count
}

func lowercase(s: String) -> Int {
    var count = 0
    for char in s {
        if char.isLowercase {
            count += 1
        }
    }
    return count
}

func characters(s: String) -> Int {
    return s.count
}
```swift
// Write a function that takes an integer a and returns true 
// if this ingeger is a cube of some integer number.
// Note: you may assume the input is always valid.
// Examples:
// iscube(a: 1) == true
// iscube(a: 2) == false
// iscube(a: -1) == true
// iscube(a: 64) == true
// iscube(a: 0) == true
// iscube(a: 180) == false
func iscube(a: Int) -> Bool {
    var i = 0
    while i*i*i <= a {
        if i*i*i == a {
            return true
        }
        i += 1
    }
    return false
}

// Write a function that takes a string s and returns the number of vowels in s.
// Examples:
// vowels("hello") == 2
// vowels("aeiou") == 5
// vowels("aeiouAEIOU") == 10
func vowels(s: String) -> Int {
    let vowels = "aeiou"
    var count = 0
    for char in s {
        if vowels.contains(char) {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string s and returns the number of consonants in s.
// Examples:
// consonants("hello") == 3
// consonants("aeiou") == 0
// consonants("aeiouAEIOU") == 0
func consonants(s: String) -> Int {
    let consonants = "bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ"
    var count = 0
    for char in s {
        if consonants.contains(char) {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string s and returns the number of words in s.
// Examples:
// words("hello") == 1
// words("hello world") == 2
// words("hello world!") == 2
func words(s: String) -> Int {
    let words = s.split(separator: " ")
    return words.count
}

// Write a function that takes a string s and returns the number of digits in s.
// Examples:
// digits("hello") == 0
// digits("12345") == 5
// digits("1234567890") == 10
func digits(s: String) -> Int {
    var count = 0
    for char in s {
        if char.isNumber {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string s and returns the number of spaces in s.
// Examples:
// spaces("hello") == 0
// spaces("hello world") == 1
// spaces("hello world!") == 1
func spaces(s: String) -> Int {
    var count = 0
    for char in s {
        if char.isWhitespace {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string s and returns the number of punctuation marks in s.
// Examples:
// punctuation("hello") == 0
// punctuation("hello!") == 1
// punctuation("hello, world!") == 3
func punctuation(s: String) -> Int {
    var count = 0
    for char in s {
        if char.isPunctuation {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string s and returns the number of uppercase letters in s.
// Examples:
// uppercase("hello") == 0
// uppercase("HELLO") == 5
// uppercase("HELLO, WORLD!") == 5
func uppercase(s: String) -> Int {
    var count = 0
    for char in s {
        if char.isUppercase {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string s and returns the number of lowercase letters in s.
// Examples:
// lowercase("hello") == 5
// lowercase("HELLO") == 0
// lowercase("HELLO, WORLD!") == 10
func lowercase(s: String) -> Int {
    var count = 0
    for char in s {
        if char.isLowercase {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string s and returns the number of characters in s.
// Examples:
// characters("hello") == 5
// characters("HELLO") == 5
// characters("HELLO, WORLD!") == 16
func characters(s: String) -> Int {
    return s.count
}

// Write a function that takes a string s and returns the number of lines in s.
// Examples:
// lines("hello") == 1
//
 // XCTAssertTrue failed

func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}
```swift
// Write a function that takes an integer a and returns true 
// if this ingeger is a cube of some integer number.
// Note: you may assume the input is always valid.
// Examples:
// iscube(a: 1) == true
// iscube(a: 2) == false
// iscube(a: -1) == true
// iscube(a: 64) == true
// iscube(a: 0) == true
// iscube(a: 180) == false
func iscube(a: Int) -> Bool {
    let cube = Int(sqrt(Double(a)))
    return cube * cube * cube == a
}
<|file_separator|>
 // Fatal error: Double value cannot be converted to Int because it is either infinite or NaN

func iscube(a: Int) -> Bool {
    let cube = a * a * a
    if cube == a {
        return true
    } else {
        return false
    }
}
```swift
// Write a function that takes an integer a and returns true 
// if this ingeger is a cube of some integer number.
// Note: you may assume the input is always valid.
// Examples:
// iscube(a: 1) == true
// iscube(a: 2) == false
// iscube(a: -1) == true
// iscube(a: 64) == true
// iscube(a: 0) == true
// iscube(a: 180) == false
func iscube(a: Int) -> Bool {
    let cube = a * a * a
    if cube == a {
        return true
    } else {
        return false
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func iscube(a: Int) -> Bool {
    let cube = Int(pow(Double(a), 1.0/3.0))
    return cube*cube*cube == a
}

func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}
```swift
// Write a function that takes an integer a and returns true 
// if this ingeger is a cube of some integer number.
// Note: you may assume the input is always valid.
// Examples:
// iscube(a: 1) == true
// iscube(a: 2) == false
// iscube(a: -1) == true
// iscube(a: 64) == true
// iscube(a: 0) == true
// iscube(a: 180) == false
func iscube(a: Int) -> Bool {
    let cube = Int(pow(Double(a), 1.0/3.0))
    return cube*cube*cube == a
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "a") == true
// ispalindrome(a: "ab") == false
// ispalindrome(a: "abba") == true
// ispalindrome(a: "abbabba") == true
// ispalindrome(a: "abbabba") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "a") == true
// ispalindrome(a: "ab") == false
// ispalindrome(a: "abba") == true
// ispalindrome(a: "abbabba") == true
// ispalindrome(a: "abbabba") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "a") == true
// ispalindrome(a: "ab") == false
// ispalindrome(a: "abba") == true
// ispalindrome(a: "abbabba") == true
// ispalindrome(a: "abbabba") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "a") == true
// ispalindrome(a: "ab") == false
// ispalindrome(a: "abba") == true
// ispalindrome(a: "abbabba") == true
// ispalindrome(a: "abbabba") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "a") == true
// ispalindrome(a: "ab") == false
// ispalindrome(a: "abba") == true
// ispalindrome(a: "abbabba") == true
// ispalindrome(a: "abbabba") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "a") == true
// ispalindrome(a: "ab") == false
// ispalindrome(a: "abba") == true
// ispalindrome(a: "abbabba") == true
// ispalindrome(a: "abbabba") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "a") == true
// ispalindrome(a: "ab") == false
// ispalindrome(a: "abba") == true
// ispalindrome(a: "abbabba") == true
// ispalindrome(a: "abbabba") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "a") == true
// ispalindrome(a: "ab") == false
// ispalindrome(a: "abba") == true
// ispalindrome(a: "abbabba") == true
// ispalindrome(a: "abbabba") == true
func ispalindrome(a: String) -> Bool {
    let reversed = String(a.reversed())
    return a == reversed
}

// Write a function that takes a string and returns true if the string is a palindrome.
// Examples:
// ispalindrome(a: "a") == true
// ispalindrome(a: "ab") ==
 // Fatal error: Double value cannot be converted to Int because it is either infinite or NaN

```swift
// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    var result = 0
    var num = num
    var hex = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"]
    var hexNum = [Int]()
    var hexNum2 = [Int]()
    var hexNum3 = [Int]()
    var hexNum4 = [Int]()
    var hexNum5 = [Int]()
    var hexNum6 = [Int]()
    var hexNum7 = [Int]()
    var hexNum8 = [Int]()
    var hexNum9 = [Int]()
    var hexNum10 = [Int]()
    var hexNum11 = [Int]()
    var hexNum12 = [Int]()
    var hexNum13 = [Int]()
    var hexNum14 = [Int]()
    var hexNum15 = [Int]()
    var hexNum16 = [Int]()
    var hexNum17 = [Int]()
    var hexNum18 = [Int]()
    var hexNum19 = [Int]()
    var hexNum20 = [Int]()
    var hexNum21 = [Int]()
    var hexNum22 = [Int]()
    var hexNum23 = [Int]()
    var hexNum24 = [Int]()
    var hexNum25 = [Int]()
    var hexNum26 = [Int]()
    var hexNum27 = [Int]()
    var hexNum28 = [Int]()
    var hexNum29 = [Int]()
    var hexNum30 = [Int]()
    var hexNum31 = [Int]()
    var hexNum32 = [Int]()
    var hexNum33 = [Int]()
    var hexNum34 = [Int]()
    var hexNum35 = [Int]()
    var hexNum36 = [Int]()
    var hexNum37 = [Int]()
    var hexNum38 = [Int]()
    var hexNum39 = [Int]()
    var hexNum40 = [Int]()
    var hexNum41 = [Int]()
    var hexNum42 = [Int]()
    var hexNum43 = [Int]()
    var hexNum44 = [Int]()
    var hexNum45 = [Int]()
    var hexNum46 = [Int]()
    var hexNum47 = [Int]()
    var hexNum48 = [Int]()
    var hexNum49 = [Int]()
    var hexNum50 = [Int]()
    var hexNum51 = [Int]()
    var hexNum52 = [Int]()
    var hexNum53 = [Int]()
    var hexNum54 = [Int]()
    var hexNum55 = [Int]()
    var hexNum56 = [Int]()
    var hexNum57 = [Int]()
    var hexNum58 = [Int]()
    var hexNum59 = [Int]()
    var hexNum60 = [Int]()
    var hexNum61 = [Int]()
    var hexNum62 = [Int]()
    var hexNum63 = [Int]()
    var hexNum64 = [Int]()
    var hexNum65 = [Int]()
    var hexNum66 = [Int]()
    var hexNum67 = [Int]()
    var hexNum68 = [Int]()
    var hexNum69 = [Int]()
    var hexNum70 = [Int]()
    var hexNum71 = [Int]()
    var hexNum72 = [Int]()
    var hexNum73 = [Int]()
    var hexNum74 = [Int]()
    var hexNum75 = [Int]()
    var hexNum76 = [Int]()
    var hexNum77 = [Int]()
    var hexNum78 = [Int]()
    var hexNum79 = [Int]()
    var hexNum80 = [Int]()
    var hexNum81 = [Int]()
    var hexNum82 = [Int]()
    var hexNum83 = [Int]()
    var hexNum84 = [Int]()
    var hexNum85 = [Int]()
    var hexNum86 = [Int]()
    var hexNum87 = [Int]()
    var hexNum88 = [Int]()
XCTAssertTrue(hexKey(num: "AB") == 1) // cannot find 'hexKey' in scope
XCTAssertTrue(hexKey(num: "1077E") == 2) // cannot find 'hexKey' in scope
XCTAssertTrue(hexKey(num: "ABED1A33") == 4) // cannot find 'hexKey' in scope
XCTAssertTrue(hexKey(num: "2020") == 2) // cannot find 'hexKey' in scope
XCTAssertTrue(hexKey(num: "123456789ABCDEF0") == 6) // cannot find 'hexKey' in scope
XCTAssertTrue(hexKey(num: "112233445566778899AABBCCDDEEFF00") == 12) // cannot find 'hexKey' in scope

func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    var count = 0
    for i in 0..<hex.count {
        if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" {
            count += 1
        }
    }
    return count
}
```swift
// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    var count = 0
    for i in 0..<hex.count {
        if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" {
            count += 1
        }
    }
    return count
}

// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    var count = 0
    for i in 0..<hex.count {
        if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" {
            count += 1
        }
    }
    return count
}

// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    var count = 0
    for i in 0..<hex.count {
        if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" {
            count += 1
        }
    }
    return count
}

// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
//
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    var count = 0
    for i in 0..<hex.count {
        if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" {
            count += 1
        }
    }
    return count
}
```swift
// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    var count = 0
    for i in 0..<hex.count {
        if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func hexKey(num: String) -> Int {
    var count = 0
    for i in num {
        if i == "A" || i == "B" || i == "C" || i == "D" || i == "E" || i == "F" {
            count += 1
        }
    }
    return count
}
```swift
// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    var count = 0
    for i in num {
        if i == "A" || i == "B" || i == "C" || i == "D" || i == "E" || i == "F" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    var count = 0
    for i in 0..<hex.count {
        if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" {
            count += 1
        }
    }
    return count
}
```swift
// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    var count = 0
    for i in 0..<hex.count {
        if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "2" || hex[i] == "3" || hex[i] == "5" || hex[i] == "7" || hex[i] == "B" || hex[i] == "D" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    let hexArray = Array(hex)
    var count = 0
    for i in hexArray {
        if i == "A" || i == "B" || i == "C" || i == "D" || i == "E" || i == "F" {
            count += 1
        }
    }
    return count
}
```swift
// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    let hexArray = Array(hex)
    var count = 0
    for i in hexArray {
        if i == "A" || i == "B" || i == "C" || i == "D" || i == "E" || i == "F" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    var count = 0
    for i in 0..<hex.count {
        if hex[i] == "A" || hex[i] == "B" || hex[i] == "C" || hex[i] == "D" || hex[i] == "E" || hex[i] == "F" {
            count += 1
        }
    }
    return count
}
```swift
// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    var count = 0
    for i in 0..<hex.count {
        if hex[i] == "A" || hex[i] == "B" || hex[i] == "C" || hex[i] == "D" || hex[i] == "E" || hex[i] == "F" {
            count += 1
        }
    }
    return count
}
<|file_separator|>
if hex[i] == "A" || hex[i] == "B" || hex[i] == "C" || hex[i] == "D" || hex[i] == "E" || hex[i] == "F" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "A" || hex[i] == "B" || hex[i] == "C" || hex[i] == "D" || hex[i] == "E" || hex[i] == "F" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "A" || hex[i] == "B" || hex[i] == "C" || hex[i] == "D" || hex[i] == "E" || hex[i] == "F" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "A" || hex[i] == "B" || hex[i] == "C" || hex[i] == "D" || hex[i] == "E" || hex[i] == "F" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "A" || hex[i] == "B" || hex[i] == "C" || hex[i] == "D" || hex[i] == "E" || hex[i] == "F" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if hex[i] == "A" || hex[i] == "B" || hex[i] == "C" || hex[i] == "D" || hex[i] == "E" || hex[i] == "F" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func hexKey(num: String) -> Int {
    var result = 0
    let digits = num.uppercased()
    for c in digits {
        let digit = Int(String(c))
        if digit != nil {
            if isPrime(digit!) {
                result += 1
            }
        }
    }
    return result
}

func isPrime(_ num: Int) -> Bool {
    if num == 2 {
        return true
    }
    if num % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(num))) {
        if num % i == 0 {
            return false
        }
    }
    return true
}
```swift
// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    var result = 0
    let digits = num.uppercased()
    for c in digits {
        let digit = Int(String(c))
        if digit != nil {
            if isPrime(digit!) {
                result += 1
            }
        }
    }
    return result
}

func isPrime(_ num: Int) -> Bool {
    if num == 2 {
        return true
    }
    if num % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(num))) {
        if num % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func hexKey(num: String) -> Int {
    var result = 0
    for i in num {
        if i == "A" || i == "B" || i == "C" || i == "D" || i == "E" || i == "F" {
            result += 1
        }
    }
    return result
}
```swift
// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    var result = 0
    for i in num {
        if i == "A" || i == "B" || i == "C" || i == "D" || i == "E" || i == "F" {
            result += 1
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    let hexArray = Array(hex)
    var count = 0
    for i in hexArray {
        if i == "A" || i == "B" || i == "C" || i == "D" || i == "E" || i == "F" {
            count += 1
        }
    }
    return count
}
```swift
// You have been tasked to write a function that receives 
// a hexadecimal number as a string and counts the number of hexadecimal 
// digits that are primes (prime number, or a prime, is a natural number 
// greater than 1 that is not a product of two smaller natural numbers).
// Hexadecimal digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
// Prime numbers are 2, 3, 5, 7, 11, 13, 17,...
// So you have to determine a number of the following digits: 2, 3, 5, 7, 
// B (=decimal 11), D (=decimal 13).
// Note: you may assume the input is always correct or empty string, 
// and symbols A,B,C,D,E,F are always uppercase.
// Examples:
// hexKey(num: "AB") == 1
// hexKey(num: "1077E") == 2
// hexKey(num: "ABED1A33") == 4
// hexKey(num: "123456789ABCDEF0") == 6
// hexKey(num: "2020") == 2
func hexKey(num: String) -> Int {
    let hex = num.uppercased()
    let hexArray = Array(hex)
    var count = 0
    for i in hexArray {
        if i == "A" || i == "B" || i == "C" || i == "D" || i == "E" || i == "F" {
            count += 1
        }
    }
    return count
}<|file_separator|>```
 // XCTAssertTrue failed

func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
```swift
// You will be given a number in decimal form and your task is to convert it to
// binary format. The function should return a string, with each character representing a binary
// number. Each character in the string will be '0' or '1'.
// There will be an extra couple of characters 'db' at the beginning and at the end of the string.
// The extra characters are there to help with the format.
// Examples:
// decimalToBinary(decimal: 15) == "db1111db"
// decimalToBinary(decimal: 32) == "db100000db"
func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
<|file_separator|>
 // XCTAssertTrue failed

func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = (decimal % 2 == 0 ? "0" : "1") + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
```swift
// You will be given a number in decimal form and your task is to convert it to
// binary format. The function should return a string, with each character representing a binary
// number. Each character in the string will be '0' or '1'.
// There will be an extra couple of characters 'db' at the beginning and at the end of the string.
// The extra characters are there to help with the format.
// Examples:
// decimalToBinary(decimal: 15) == "db1111db"
// decimalToBinary(decimal: 32) == "db100000db"
func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = (decimal % 2 == 0 ? "0" : "1") + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
<|file_separator|>
 // XCTAssertTrue failed

func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        let remainder = decimal % 2
        binary = String(remainder) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
```swift
// You will be given a number in decimal form and your task is to convert it to
// binary format. The function should return a string, with each character representing a binary
// number. Each character in the string will be '0' or '1'.
// There will be an extra couple of characters 'db' at the beginning and at the end of the string.
// The extra characters are there to help with the format.
// Examples:
// decimalToBinary(decimal: 15) == "db1111db"
// decimalToBinary(decimal: 32) == "db100000db"
func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        let remainder = decimal % 2
        binary = String(remainder) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
<|file_separator|>
 // XCTAssertTrue failed

func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
```swift
// You will be given a number in decimal form and your task is to convert it to
// binary format. The function should return a string, with each character representing a binary
// number. Each character in the string will be '0' or '1'.
// There will be an extra couple of characters 'db' at the beginning and at the end of the string.
// The extra characters are there to help with the format.
// Examples:
// decimalToBinary(decimal: 15) == "db1111db"
// decimalToBinary(decimal: 32) == "db100000db"
func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
<|file_separator|>
 // XCTAssertTrue failed

func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
```swift
// You will be given a number in decimal form and your task is to convert it to
// binary format. The function should return a string, with each character representing a binary
// number. Each character in the string will be '0' or '1'.
// There will be an extra couple of characters 'db' at the beginning and at the end of the string.
// The extra characters are there to help with the format.
// Examples:
// decimalToBinary(decimal: 15) == "db1111db"
// decimalToBinary(decimal: 32) == "db100000db"
func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
<|file_separator|>
 // XCTAssertTrue failed

func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}

func sumOfNumbers(str: String) -> Int {
    let numbers = str.split(separator: " ").map { Int($0) }
    return numbers.reduce(0, +)
}
```swift
// You will be given a number in decimal form and your task is to convert it to
// binary format. The function should return a string, with each character representing a binary
// number. Each character in the string will be '0' or '1'.
// There will be an extra couple of characters 'db' at the beginning and at the end of the string.
// The extra characters are there to help with the format.
// Examples:
// decimalToBinary(decimal: 15) == "db1111db"
// decimalToBinary(decimal: 32) == "db100000db"
func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}

// You are given a string of numbers. Your task is to return the sum of the numbers.
// You will be given a string of numbers that have been separated by a single space.
// Examples:
// sumOfNumbers("1 2 3 4") == 10
// sumOfNumbers("1 2 3 4 5") == 15
func sumOfNumbers(str: String) -> Int {
    let numbers = str.split(separator: " ").map { Int($0) }
    return numbers.reduce(0, +)
}

// You are given a string of numbers. Your task is to return the sum of the numbers.
// You will be given a string of numbers that have been separated by a single space.
// Examples:
// sumOfNumbers("1 2 3 4") == 10
// sumOfNumbers("1 2 3 4 5") == 15
func sumOfNumbers(str: String) -> Int {
    let numbers = str.split(separator: " ").map { Int($0) }
    return numbers.reduce(0, +)
}

// You are given a string of numbers. Your task is to return the sum of the numbers.
// You will be given a string of numbers that have been separated by a single space.
// Examples:
// sumOfNumbers("1 2 3 4") == 10
// sumOfNumbers("1 2 3 4 5") == 15
func sumOfNumbers(str: String) -> Int {
    let numbers = str.split(separator: " ").map { Int($0) }
    return numbers.reduce(0, +)
}

// You are given a string of numbers. Your task is to return the sum of the numbers.
// You will be given a string of numbers that have been separated by a single space.
// Examples:
// sumOfNumbers("1 2 3 4") == 10
// sumOfNumbers("1 2 3 4 5") == 15
func sumOfNumbers(str: String) -> Int {
    let numbers = str.split(separator: " ").map { Int($0) }
    return numbers.reduce(0, +)
}

// You are given a string of numbers. Your task is to return the sum of the numbers.
// You will be given a string of numbers that have been separated by a single space.
// Examples:
// sumOfNumbers("1 2 3 4") == 10
// sumOfNumbers("1 2 3 4 5") == 15
func sumOfNumbers(str: String) -> Int {
    let numbers = str.split(separator: " ").map { Int($0) }
    return numbers.reduce(0, +)
}

// You are given a string of numbers. Your task is to return the sum of the numbers.
// You will be given a string of numbers that have been separated by a single space.
// Examples:
// sumOfNumbers("1 2 3 4") == 10
// sumOfNumbers("1 2 3 4 5") == 15
func sumOfNumbers(str: String) -> Int {
    let numbers = str.split(separator: " ").map { Int($0) }
    return numbers.reduce(0, +)
}

// You are given a string of numbers. Your task is to return the sum of the numbers.
// You will be given a string of numbers that have been separated by a single space.
// Examples:
// sumOfNumbers("1 2 3 4") == 10
// sumOfNumbers("1 2 3 4 5") == 15
func sumOfNumbers(str: String) -> Int {
    let numbers = str.split(separator: " ").map { Int($0) }
    return numbers.reduce(0, +)
}

// You are given a string of numbers. Your task is to return the sum of the numbers.
// You will be given a string of numbers that have been separated by a single space.
// Examples:
// sumOfNumbers("1 2 3 4") == 10
// sumOfNumbers("1 2 
return numbers.reduce(0, +) // cannot convert value of type '(Int) -> Int' to expected argument type '(Int, Int?) throws -> Int'

func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
```swift
// You will be given a number in decimal form and your task is to convert it to
// binary format. The function should return a string, with each character representing a binary
// number. Each character in the string will be '0' or '1'.
// There will be an extra couple of characters 'db' at the beginning and at the end of the string.
// The extra characters are there to help with the format.
// Examples:
// decimalToBinary(decimal: 15) == "db1111db"
// decimalToBinary(decimal: 32) == "db100000db"
func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
<|file_separator|>
 // XCTAssertTrue failed

func decimalToBinary(decimal: Int) -> String {
    var binary = ""
    var decimal = decimal
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
```swift
// You will be given a number in decimal form and your task is to convert it to
// binary format. The function should return a string, with each character representing a binary
// number. Each character in the string will be '0' or '1'.
// There will be an extra couple of characters 'db' at the beginning and at the end of the string.
// The extra characters are there to help with the format.
// Examples:
// decimalToBinary(decimal: 15) == "db1111db"
// decimalToBinary(decimal: 32) == "db100000db"
func decimalToBinary(decimal: Int) -> String {
    var binary = ""
    var decimal = decimal
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
<|file_separator|>
 // XCTAssertTrue failed

func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
```swift
// You will be given a number in decimal form and your task is to convert it to
// binary format. The function should return a string, with each character representing a binary
// number. Each character in the string will be '0' or '1'.
// There will be an extra couple of characters 'db' at the beginning and at the end of the string.
// The extra characters are there to help with the format.
// Examples:
// decimalToBinary(decimal: 15) == "db1111db"
// decimalToBinary(decimal: 32) == "db100000db"
func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = String(decimal % 2) + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
<|file_separator|>
 // XCTAssertTrue failed

func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = "\(decimal % 2)" + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
```swift
// You will be given a number in decimal form and your task is to convert it to
// binary format. The function should return a string, with each character representing a binary
// number. Each character in the string will be '0' or '1'.
// There will be an extra couple of characters 'db' at the beginning and at the end of the string.
// The extra characters are there to help with the format.
// Examples:
// decimalToBinary(decimal: 15) == "db1111db"
// decimalToBinary(decimal: 32) == "db100000db"
func decimalToBinary(decimal: Int) -> String {
    var decimal = decimal
    var binary = ""
    while decimal > 0 {
        binary = "\(decimal % 2)" + binary
        decimal /= 2
    }
    return "db" + binary + "db"
}
<|file_separator|>
 // XCTAssertTrue failed

```swift
// You are given a string s.
// Your task is to check if the string is hapswift or not.
// A string is hapswift if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// isHappy(s: "a") == false
// isHappy(s: "aa") == false
// isHappy(s: "abcd") == true
// isHappy(s: "aabb") == false
// isHappy(s: "adb") == true
// isHappy(s: "xyy") == false
func isHappy(s: String) -> Bool {
    var s = s
    var s2 = ""
    var s3 = ""
    var s4 = ""
    var s5 = ""
    var s6 = ""
    var s7 = ""
    var s8 = ""
    var s9 = ""
    var s10 = ""
    var s11 = ""
    var s12 = ""
    var s13 = ""
    var s14 = ""
    var s15 = ""
    var s16 = ""
    var s17 = ""
    var s18 = ""
    var s19 = ""
    var s20 = ""
    var s21 = ""
    var s22 = ""
    var s23 = ""
    var s24 = ""
    var s25 = ""
    var s26 = ""
    var s27 = ""
    var s28 = ""
    var s29 = ""
    var s30 = ""
    var s31 = ""
    var s32 = ""
    var s33 = ""
    var s34 = ""
    var s35 = ""
    var s36 = ""
    var s37 = ""
    var s38 = ""
    var s39 = ""
    var s40 = ""
    var s41 = ""
    var s42 = ""
    var s43 = ""
    var s44 = ""
    var s45 = ""
    var s46 = ""
    var s47 = ""
    var s48 = ""
    var s49 = ""
    var s50 = ""
    var s51 = ""
    var s52 = ""
    var s53 = ""
    var s54 = ""
    var s55 = ""
    var s56 = ""
    var s57 = ""
    var s58 = ""
    var s59 = ""
    var s60 = ""
    var s61 = ""
    var s62 = ""
    var s63 = ""
    var s64 = ""
    var s65 = ""
    var s66 = ""
    var s67 = ""
    var s68 = ""
    var s69 = ""
    var s70 = ""
    var s71 = ""
    var s72 = ""
    var s73 = ""
    var s74 = ""
    var s75 = ""
    var s76 = ""
    var s77 = ""
    var s78 = ""
    var s79 = ""
    var s80 = ""
    var s81 = ""
    var s82 = ""
    var s83 = ""
    var s84 = ""
    var s85 = ""
    var s86 = ""
    var s87 = ""
    var s88 = ""
    var s89 = ""
    var s90 = ""
    var s91 = ""
    var s92 = ""
    var s93 = ""
    var s94 = ""
    var s95 = ""
    var s96 = ""
    var s97 = ""
    var s98 = ""
    var s99 = ""
    var s100 = ""
    var s101 = ""
    var s102 = ""
    var s103 = ""
    var s104 = ""
    var s105 = ""
    var s106 = ""
    var s107 = ""
    var s108 = ""
    var s109 = ""
    var s110 = ""
    var s111 = ""
    var s112 = ""
    var s113 = ""
    var s114 = ""
    var s115 = ""
    var s116 = ""
    var s117 = ""
    var s118 = ""
    var s119 = ""
    var s120 = ""
    var s121 = ""
    var s122 = ""
    var s123 = ""
    var s124 = ""
    var s125 = ""
    var s126 =
XCTAssertTrue(isHappy(s: "a") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "aa") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "abcd") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "aabb") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "adb") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "xyy") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "iopaxpoi") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "iopaxioi") == false) // cannot find 'isHappy' in scope

```swift
// You are given a string s.
// Your task is to check if the string is hapswift or not.
// A string is hapswift if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// isHappy(s: "a") == false
// isHappy(s: "aa") == false
// isHappy(s: "abcd") == true
// isHappy(s: "aabb") == false
// isHappy(s: "adb") == true
// isHappy(s: "xyy") == false
func isHappy(s: String) -> Bool {
    var s = s
    var s2 = s
    var s3 = s
    var s4 = s
    var s5 = s
    var s6 = s
    var s7 = s
    var s8 = s
    var s9 = s
    var s10 = s
    var s11 = s
    var s12 = s
    var s13 = s
    var s14 = s
    var s15 = s
    var s16 = s
    var s17 = s
    var s18 = s
    var s19 = s
    var s20 = s
    var s21 = s
    var s22 = s
    var s23 = s
    var s24 = s
    var s25 = s
    var s26 = s
    var s27 = s
    var s28 = s
    var s29 = s
    var s30 = s
    var s31 = s
    var s32 = s
    var s33 = s
    var s34 = s
    var s35 = s
    var s36 = s
    var s37 = s
    var s38 = s
    var s39 = s
    var s40 = s
    var s41 = s
    var s42 = s
    var s43 = s
    var s44 = s
    var s45 = s
    var s46 = s
    var s47 = s
    var s48 = s
    var s49 = s
    var s50 = s
    var s51 = s
    var s52 = s
    var s53 = s
    var s54 = s
    var s55 = s
    var s56 = s
    var s57 = s
    var s58 = s
    var s59 = s
    var s60 = s
    var s61 = s
    var s62 = s
    var s63 = s
    var s64 = s
    var s65 = s
    var s66 = s
    var s67 = s
    var s68 = s
    var s69 = s
    var s70 = s
    var s71 = s
    var s72 = s
    var s73 = s
    var s74 = s
    var s75 = s
    var s76 = s
    var s77 = s
    var s78 = s
    var s79 = s
    var s80 = s
    var s81 = s
    var s82 = s
    var s83 = s
    var s84 = s
    var s85 = s
    var s86 = s
    var s87 = s
    var s88 = s
    var s89 = s
    var s90 = s
    var s91 = s
    var s92 = s
    var s93 = s
    var s94 = s
    var s95 = s
    var s96 = s
    var s97 = s
    var s98 = s
    var s99 = s
    var s100 = s
    var s101 = s
    var s102 = s
    var s103 = s
    var s104 = s
    var s105 = s
    var s106 = s
    var s107 = s
    var s108 = s
    var s109 = s
    var s110 = s
    var s111 = s
    var s112 = s
    var s113 = s
    var s114 = s
    var s115 = s
    var s116 = s
    var s117 = s
    var s118 = s
    var s119 = s
    var s120 = s
    var s121 = s
    var s122 = s
    var s123 = s
    var s124 = s
    var s125 = s
    var s126 =
XCTAssertTrue(isHappy(s: "a") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "aa") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "abcd") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "aabb") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "adb") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "xyy") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "iopaxpoi") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "iopaxioi") == false) // cannot find 'isHappy' in scope

func isHappy(s: String) -> Bool {
    var s = s
    while s.count > 2 {
        let first = s.prefix(1)
        let second = s.prefix(2)
        let third = s.prefix(3)
        if first == second || second == third || third == first {
            return false
        }
        s = s.dropFirst(3)
    }
    return true
}
```swift
// You are given a string s.
// Your task is to check if the string is hapswift or not.
// A string is hapswift if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// isHappy(s: "a") == false
// isHappy(s: "aa") == false
// isHappy(s: "abcd") == true
// isHappy(s: "aabb") == false
// isHappy(s: "adb") == true
// isHappy(s: "xyy") == false
func isHappy(s: String) -> Bool {
    var s = s
    while s.count > 2 {
        let first = s.prefix(1)
        let second = s.prefix(2)
        let third = s.prefix(3)
        if first == second || second == third || third == first {
            return false
        }
        s = s.dropFirst(3)
    }
    return true
}
<|file_separator|>
s = s.dropFirst(3) // no 'dropFirst' candidates produce the expected contextual result type 'String'

func isHappy(s: String) -> Bool {
    var result = true
    var count = 0
    var str = s
    while(result && count < 3){
        var set = Set<Character>()
        for i in 0..<str.count{
            if set.contains(str[str.index(str.startIndex, offsetBy: i)]){
                result = false
                break
            }
            set.insert(str[str.index(str.startIndex, offsetBy: i)])
        }
        str = String(str.dropFirst(3))
        count += 1
    }
    return result
}
```swift
// You are given a string s.
// Your task is to check if the string is hapswift or not.
// A string is hapswift if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// isHappy(s: "a") == false
// isHappy(s: "aa") == false
// isHappy(s: "abcd") == true
// isHappy(s: "aabb") == false
// isHappy(s: "adb") == true
// isHappy(s: "xyy") == false
func isHappy(s: String) -> Bool {
    var result = true
    var count = 0
    var str = s
    while(result && count < 3){
        var set = Set<Character>()
        for i in 0..<str.count{
            if set.contains(str[str.index(str.startIndex, offsetBy: i)]){
                result = false
                break
            }
            set.insert(str[str.index(str.startIndex, offsetBy: i)])
        }
        str = String(str.dropFirst(3))
        count += 1
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func isHappy(s: String) -> Bool {
    var s = s
    var count = 0
    while(s.count > 2) {
        var sum = 0
        for i in s {
            sum += Int(String(i))! * Int(String(i))!
        }
        s = String(sum)
        count += 1
        if count > 100 {
            return false
        }
    }
    if s == "1" {
        return true
    }
    return false
}
```swift
// You are given a string s.
// Your task is to check if the string is hapswift or not.
// A string is hapswift if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// isHappy(s: "a") == false
// isHappy(s: "aa") == false
// isHappy(s: "abcd") == true
// isHappy(s: "aabb") == false
// isHappy(s: "adb") == true
// isHappy(s: "xyy") == false
func isHappy(s: String) -> Bool {
    var s = s
    var count = 0
    while(s.count > 2) {
        var sum = 0
        for i in s {
            sum += Int(String(i))! * Int(String(i))!
        }
        s = String(sum)
        count += 1
        if count > 100 {
            return false
        }
    }
    if s == "1" {
        return true
    }
    return false
}
<|file_separator|>
 // Fatal error: Unexpectedly found nil while unwrapping an Optional value

```swift
// You are given a string s.
// Your task is to check if the string is hapswift or not.
// A string is hapswift if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// isHappy(s: "a") == false
// isHappy(s: "aa") == false
// isHappy(s: "abcd") == true
// isHappy(s: "aabb") == false
// isHappy(s: "adb") == true
// isHappy(s: "xyy") == false
func isHappy(s: String) -> Bool {
    var s = s
    var s1 = s
    var s2 = s
    var s3 = s
    var s4 = s
    var s5 = s
    var s6 = s
    var s7 = s
    var s8 = s
    var s9 = s
    var s10 = s
    var s11 = s
    var s12 = s
    var s13 = s
    var s14 = s
    var s15 = s
    var s16 = s
    var s17 = s
    var s18 = s
    var s19 = s
    var s20 = s
    var s21 = s
    var s22 = s
    var s23 = s
    var s24 = s
    var s25 = s
    var s26 = s
    var s27 = s
    var s28 = s
    var s29 = s
    var s30 = s
    var s31 = s
    var s32 = s
    var s33 = s
    var s34 = s
    var s35 = s
    var s36 = s
    var s37 = s
    var s38 = s
    var s39 = s
    var s40 = s
    var s41 = s
    var s42 = s
    var s43 = s
    var s44 = s
    var s45 = s
    var s46 = s
    var s47 = s
    var s48 = s
    var s49 = s
    var s50 = s
    var s51 = s
    var s52 = s
    var s53 = s
    var s54 = s
    var s55 = s
    var s56 = s
    var s57 = s
    var s58 = s
    var s59 = s
    var s60 = s
    var s61 = s
    var s62 = s
    var s63 = s
    var s64 = s
    var s65 = s
    var s66 = s
    var s67 = s
    var s68 = s
    var s69 = s
    var s70 = s
    var s71 = s
    var s72 = s
    var s73 = s
    var s74 = s
    var s75 = s
    var s76 = s
    var s77 = s
    var s78 = s
    var s79 = s
    var s80 = s
    var s81 = s
    var s82 = s
    var s83 = s
    var s84 = s
    var s85 = s
    var s86 = s
    var s87 = s
    var s88 = s
    var s89 = s
    var s90 = s
    var s91 = s
    var s92 = s
    var s93 = s
    var s94 = s
    var s95 = s
    var s96 = s
    var s97 = s
    var s98 = s
    var s99 = s
    var s100 = s
    var s101 = s
    var s102 = s
    var s103 = s
    var s104 = s
    var s105 = s
    var s106 = s
    var s107 = s
    var s108 = s
    var s109 = s
    var s110 = s
    var s111 = s
    var s112 = s
    var s113 = s
    var s114 = s
    var s115 = s
    var s116 = s
    var s117 = s
    var s118 = s
    var s119 = s
    var s120 = s
    var s121 = s
    var s122 = s
    var s123 = s
    var s124 = s
    var s125 = s
XCTAssertTrue(isHappy(s: "a") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "aa") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "abcd") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "aabb") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "adb") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "xyy") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "iopaxpoi") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "iopaxioi") == false) // cannot find 'isHappy' in scope

func isHappy(s: String) -> Bool {
    var s = s
    var s = s.map { String($0) }
    var s = s.map { Int($0)! }
    var s = s.map { $0 * $0 }
    var s = s.reduce(0, +)
    if s == 1 {
        return true
    } else if s == 4 {
        return false
    } else {
        return isHappy(s: String(s))
    }
}
```swift
// You are given a string s.
// Your task is to check if the string is hapswift or not.
// A string is hapswift if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// isHappy(s: "a") == false
// isHappy(s: "aa") == false
// isHappy(s: "abcd") == true
// isHappy(s: "aabb") == false
// isHappy(s: "adb") == true
// isHappy(s: "xyy") == false
func isHappy(s: String) -> Bool {
    var s = s
    var s = s.map { String($0) }
    var s = s.map { Int($0)! }
    var s = s.map { $0 * $0 }
    var s = s.reduce(0, +)
    if s == 1 {
        return true
    } else if s == 4 {
        return false
    } else {
        return isHappy(s: String(s))
    }
}
<|file_separator|>
var s = s.map { String($0) } // invalid redeclaration of 's'

```swift
// You are given a string s.
// Your task is to check if the string is hapswift or not.
// A string is hapswift if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// isHappy(s: "a") == false
// isHappy(s: "aa") == false
// isHappy(s: "abcd") == true
// isHappy(s: "aabb") == false
// isHappy(s: "adb") == true
// isHappy(s: "xyy") == false
func isHappy(s: String) -> Bool {
    var s = s
    var s2 = ""
    var s3 = ""
    var s4 = ""
    var s5 = ""
    var s6 = ""
    var s7 = ""
    var s8 = ""
    var s9 = ""
    var s10 = ""
    var s11 = ""
    var s12 = ""
    var s13 = ""
    var s14 = ""
    var s15 = ""
    var s16 = ""
    var s17 = ""
    var s18 = ""
    var s19 = ""
    var s20 = ""
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    var s126 =
XCTAssertTrue(isHappy(s: "a") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "aa") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "abcd") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "aabb") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "adb") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "xyy") == false) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "iopaxpoi") == true) // cannot find 'isHappy' in scope
XCTAssertTrue(isHappy(s: "iopaxioi") == false) // cannot find 'isHappy' in scope

func isHappy(s: String) -> Bool {
    var s = s
    var s = s.map { String($0) }
    var s = s.map { Int($0)! }
    var s = s.reduce(0) { $0 + $1 * $1 }
    return s == 1
}
```swift
// You are given a string s.
// Your task is to check if the string is hapswift or not.
// A string is hapswift if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// isHappy(s: "a") == false
// isHappy(s: "aa") == false
// isHappy(s: "abcd") == true
// isHappy(s: "aabb") == false
// isHappy(s: "adb") == true
// isHappy(s: "xyy") == false
func isHappy(s: String) -> Bool {
    var s = s
    var s = s.map { String($0) }
    var s = s.map { Int($0)! }
    var s = s.reduce(0) { $0 + $1 * $1 }
    return s == 1
}
<|file_separator|>
var s = s.map { String($0) } // invalid redeclaration of 's'

func isHappy(s: String) -> Bool {
    if s.count < 3 {
        return false
    }
    
    var set = Set<Character>()
    var current = s
    
    while current.count > 0 {
        var next = ""
        for i in 0..<current.count {
            let index = current.index(current.startIndex, offsetBy: i)
            let char = current[index]
            if set.contains(char) {
                return false
            }
            set.insert(char)
            next += String(char)
        }
        current = next
    }
    
    return true
}
```swift
// You are given a string s.
// Your task is to check if the string is hapswift or not.
// A string is hapswift if its length is at least 3 and every 3 consecutive letters are distinct
// For example:
// isHappy(s: "a") == false
// isHappy(s: "aa") == false
// isHappy(s: "abcd") == true
// isHappy(s: "aabb") == false
// isHappy(s: "adb") == true
// isHappy(s: "xyy") == false
func isHappy(s: String) -> Bool {
    if s.count < 3 {
        return false
    }
    
    var set = Set<Character>()
    var current = s
    
    while current.count > 0 {
        var next = ""
        for i in 0..<current.count {
            let index = current.index(current.startIndex, offsetBy: i)
            let char = current[index]
            if set.contains(char) {
                return false
            }
            set.insert(char)
            next += String(char)
        }
        current = next
    }
    
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
```swift
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algorithm for grading.
// The only problem is, she has lost the code she used for grading.
// She has given you an array of GPAs for some students and you have to write 
// a function that can output an array of letter grades using the following table:
// GPA       |    Letter grade
// 4.0                A+
// > 3.7                A 
// > 3.3                A- 
// > 3.0                B+
// > 2.7                B 
// > 2.3                B-
// > 2.0                C+
// > 1.7                C
// > 1.3                C-
// > 1.0                D+ 
// > 0.7                D 
// > 0.0                D-
// 0.0                E
// Example:
// numericalLetterGrade(grades: [4.0, 3, 1.7, 2, 3.5]) == ["A+", "B", "C-", "C", "A-"]
func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
<|file_separator|>

func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
```swift
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algorithm for grading.
// The only problem is, she has lost the code she used for grading.
// She has given you an array of GPAs for some students and you have to write 
// a function that can output an array of letter grades using the following table:
// GPA       |    Letter grade
// 4.0                A+
// > 3.7                A 
// > 3.3                A- 
// > 3.0                B+
// > 2.7                B 
// > 2.3                B-
// > 2.0                C+
// > 1.7                C
// > 1.3                C-
// > 1.0                D+ 
// > 0.7                D 
// > 0.0                D-
// 0.0                E
// Example:
// numericalLetterGrade(grades: [4.0, 3, 1.7, 2, 3.5]) == ["A+", "B", "C-", "C", "A-"]
func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
<|file_separator|>

func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
```swift
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algorithm for grading.
// The only problem is, she has lost the code she used for grading.
// She has given you an array of GPAs for some students and you have to write 
// a function that can output an array of letter grades using the following table:
// GPA       |    Letter grade
// 4.0                A+
// > 3.7                A 
// > 3.3                A- 
// > 3.0                B+
// > 2.7                B 
// > 2.3                B-
// > 2.0                C+
// > 1.7                C
// > 1.3                C-
// > 1.0                D+ 
// > 0.7                D 
// > 0.0                D-
// 0.0                E
// Example:
// numericalLetterGrade(grades: [4.0, 3, 1.7, 2, 3.5]) == ["A+", "B", "C-", "C", "A-"]
func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
<|file_separator|>

func numericalLetterGrade(grades: [Double]) -> [String] {
  var letterGrades = [String]()
  for grade in grades {
    if grade >= 4.0 {
      letterGrades.append("A+")
    } else if grade > 3.7 {
      letterGrades.append("A")
    } else if grade > 3.3 {
      letterGrades.append("A-")
    } else if grade > 3.0 {
      letterGrades.append("B+")
    } else if grade > 2.7 {
      letterGrades.append("B")
    } else if grade > 2.3 {
      letterGrades.append("B-")
    } else if grade > 2.0 {
      letterGrades.append("C+")
    } else if grade > 1.7 {
      letterGrades.append("C")
    } else if grade > 1.3 {
      letterGrades.append("C-")
    } else if grade > 1.0 {
      letterGrades.append("D+")
    } else if grade > 0.7 {
      letterGrades.append("D")
    } else if grade > 0.0 {
      letterGrades.append("D-")
    } else {
      letterGrades.append("E")
    }
  }
  return letterGrades
}
```swift
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algorithm for grading.
// The only problem is, she has lost the code she used for grading.
// She has given you an array of GPAs for some students and you have to write 
// a function that can output an array of letter grades using the following table:
// GPA       |    Letter grade
// 4.0                A+
// > 3.7                A 
// > 3.3                A- 
// > 3.0                B+
// > 2.7                B 
// > 2.3                B-
// > 2.0                C+
// > 1.7                C
// > 1.3                C-
// > 1.0                D+ 
// > 0.7                D 
// > 0.0                D-
// 0.0                E
// Example:
// numericalLetterGrade(grades: [4.0, 3, 1.7, 2, 3.5]) == ["A+", "B", "C-", "C", "A-"]
func numericalLetterGrade(grades: [Double]) -> [String] {
  var letterGrades = [String]()
  for grade in grades {
    if grade >= 4.0 {
      letterGrades.append("A+")
    } else if grade > 3.7 {
      letterGrades.append("A")
    } else if grade > 3.3 {
      letterGrades.append("A-")
    } else if grade > 3.0 {
      letterGrades.append("B+")
    } else if grade > 2.7 {
      letterGrades.append("B")
    } else if grade > 2.3 {
      letterGrades.append("B-")
    } else if grade > 2.0 {
      letterGrades.append("C+")
    } else if grade > 1.7 {
      letterGrades.append("C")
    } else if grade > 1.3 {
      letterGrades.append("C-")
    } else if grade > 1.0 {
      letterGrades.append("D+")
    } else if grade > 0.7 {
      letterGrades.append("D")
    } else if grade > 0.0 {
      letterGrades.append("D-")
    } else {
      letterGrades.append("E")
    }
  }
  return letterGrades
}
<|file_separator|>

func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
```swift
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algorithm for grading.
// The only problem is, she has lost the code she used for grading.
// She has given you an array of GPAs for some students and you have to write 
// a function that can output an array of letter grades using the following table:
// GPA       |    Letter grade
// 4.0                A+
// > 3.7                A 
// > 3.3                A- 
// > 3.0                B+
// > 2.7                B 
// > 2.3                B-
// > 2.0                C+
// > 1.7                C
// > 1.3                C-
// > 1.0                D+ 
// > 0.7                D 
// > 0.0                D-
// 0.0                E
// Example:
// numericalLetterGrade(grades: [4.0, 3, 1.7, 2, 3.5]) == ["A+", "B", "C-", "C", "A-"]
func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
<|file_separator|>

func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrade = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrade.append("A+")
        } else if grade > 3.7 {
            letterGrade.append("A")
        } else if grade > 3.3 {
            letterGrade.append("A-")
        } else if grade > 3.0 {
            letterGrade.append("B+")
        } else if grade > 2.7 {
            letterGrade.append("B")
        } else if grade > 2.3 {
            letterGrade.append("B-")
        } else if grade > 2.0 {
            letterGrade.append("C+")
        } else if grade > 1.7 {
            letterGrade.append("C")
        } else if grade > 1.3 {
            letterGrade.append("C-")
        } else if grade > 1.0 {
            letterGrade.append("D+")
        } else if grade > 0.7 {
            letterGrade.append("D")
        } else if grade > 0.0 {
            letterGrade.append("D-")
        } else {
            letterGrade.append("E")
        }
    }
    return letterGrade
}
```swift
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algorithm for grading.
// The only problem is, she has lost the code she used for grading.
// She has given you an array of GPAs for some students and you have to write 
// a function that can output an array of letter grades using the following table:
// GPA       |    Letter grade
// 4.0                A+
// > 3.7                A 
// > 3.3                A- 
// > 3.0                B+
// > 2.7                B 
// > 2.3                B-
// > 2.0                C+
// > 1.7                C
// > 1.3                C-
// > 1.0                D+ 
// > 0.7                D 
// > 0.0                D-
// 0.0                E
// Example:
// numericalLetterGrade(grades: [4.0, 3, 1.7, 2, 3.5]) == ["A+", "B", "C-", "C", "A-"]
func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrade = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrade.append("A+")
        } else if grade > 3.7 {
            letterGrade.append("A")
        } else if grade > 3.3 {
            letterGrade.append("A-")
        } else if grade > 3.0 {
            letterGrade.append("B+")
        } else if grade > 2.7 {
            letterGrade.append("B")
        } else if grade > 2.3 {
            letterGrade.append("B-")
        } else if grade > 2.0 {
            letterGrade.append("C+")
        } else if grade > 1.7 {
            letterGrade.append("C")
        } else if grade > 1.3 {
            letterGrade.append("C-")
        } else if grade > 1.0 {
            letterGrade.append("D+")
        } else if grade > 0.7 {
            letterGrade.append("D")
        } else if grade > 0.0 {
            letterGrade.append("D-")
        } else {
            letterGrade.append("E")
        }
    }
    return letterGrade
}
<|file_separator|>

func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades: [String] = []
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
```swift
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algorithm for grading.
// The only problem is, she has lost the code she used for grading.
// She has given you an array of GPAs for some students and you have to write 
// a function that can output an array of letter grades using the following table:
// GPA       |    Letter grade
// 4.0                A+
// > 3.7                A 
// > 3.3                A- 
// > 3.0                B+
// > 2.7                B 
// > 2.3                B-
// > 2.0                C+
// > 1.7                C
// > 1.3                C-
// > 1.0                D+ 
// > 0.7                D 
// > 0.0                D-
// 0.0                E
// Example:
// numericalLetterGrade(grades: [4.0, 3, 1.7, 2, 3.5]) == ["A+", "B", "C-", "C", "A-"]
func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades: [String] = []
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
<|file_separator|>

func numericalLetterGrade(grades: [Double]) -> [String] {
  var letterGrades = [String]()
  for grade in grades {
    if grade >= 4.0 {
      letterGrades.append("A+")
    } else if grade > 3.7 {
      letterGrades.append("A")
    } else if grade > 3.3 {
      letterGrades.append("A-")
    } else if grade > 3.0 {
      letterGrades.append("B+")
    } else if grade > 2.7 {
      letterGrades.append("B")
    } else if grade > 2.3 {
      letterGrades.append("B-")
    } else if grade > 2.0 {
      letterGrades.append("C+")
    } else if grade > 1.7 {
      letterGrades.append("C")
    } else if grade > 1.3 {
      letterGrades.append("C-")
    } else if grade > 1.0 {
      letterGrades.append("D+")
    } else if grade > 0.7 {
      letterGrades.append("D")
    } else if grade > 0.0 {
      letterGrades.append("D-")
    } else {
      letterGrades.append("E")
    }
  }
  return letterGrades
}
```swift
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algorithm for grading.
// The only problem is, she has lost the code she used for grading.
// She has given you an array of GPAs for some students and you have to write 
// a function that can output an array of letter grades using the following table:
// GPA       |    Letter grade
// 4.0                A+
// > 3.7                A 
// > 3.3                A- 
// > 3.0                B+
// > 2.7                B 
// > 2.3                B-
// > 2.0                C+
// > 1.7                C
// > 1.3                C-
// > 1.0                D+ 
// > 0.7                D 
// > 0.0                D-
// 0.0                E
// Example:
// numericalLetterGrade(grades: [4.0, 3, 1.7, 2, 3.5]) == ["A+", "B", "C-", "C", "A-"]
func numericalLetterGrade(grades: [Double]) -> [String] {
  var letterGrades = [String]()
  for grade in grades {
    if grade >= 4.0 {
      letterGrades.append("A+")
    } else if grade > 3.7 {
      letterGrades.append("A")
    } else if grade > 3.3 {
      letterGrades.append("A-")
    } else if grade > 3.0 {
      letterGrades.append("B+")
    } else if grade > 2.7 {
      letterGrades.append("B")
    } else if grade > 2.3 {
      letterGrades.append("B-")
    } else if grade > 2.0 {
      letterGrades.append("C+")
    } else if grade > 1.7 {
      letterGrades.append("C")
    } else if grade > 1.3 {
      letterGrades.append("C-")
    } else if grade > 1.0 {
      letterGrades.append("D+")
    } else if grade > 0.7 {
      letterGrades.append("D")
    } else if grade > 0.0 {
      letterGrades.append("D-")
    } else {
      letterGrades.append("E")
    }
  }
  return letterGrades
}
<|file_separator|>

func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades: [String] = []
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
```swift
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algorithm for grading.
// The only problem is, she has lost the code she used for grading.
// She has given you an array of GPAs for some students and you have to write 
// a function that can output an array of letter grades using the following table:
// GPA       |    Letter grade
// 4.0                A+
// > 3.7                A 
// > 3.3                A- 
// > 3.0                B+
// > 2.7                B 
// > 2.3                B-
// > 2.0                C+
// > 1.7                C
// > 1.3                C-
// > 1.0                D+ 
// > 0.7                D 
// > 0.0                D-
// 0.0                E
// Example:
// numericalLetterGrade(grades: [4.0, 3, 1.7, 2, 3.5]) == ["A+", "B", "C-", "C", "A-"]
func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades: [String] = []
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
<|file_separator|>

func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
```swift
// It is the last week of the semester and the teacher has to give the grades
// to students. The teacher has been making her own algorithm for grading.
// The only problem is, she has lost the code she used for grading.
// She has given you an array of GPAs for some students and you have to write 
// a function that can output an array of letter grades using the following table:
// GPA       |    Letter grade
// 4.0                A+
// > 3.7                A 
// > 3.3                A- 
// > 3.0                B+
// > 2.7                B 
// > 2.3                B-
// > 2.0                C+
// > 1.7                C
// > 1.3                C-
// > 1.0                D+ 
// > 0.7                D 
// > 0.0                D-
// 0.0                E
// Example:
// numericalLetterGrade(grades: [4.0, 3, 1.7, 2, 3.5]) == ["A+", "B", "C-", "C", "A-"]
func numericalLetterGrade(grades: [Double]) -> [String] {
    var letterGrades = [String]()
    for grade in grades {
        if grade >= 4.0 {
            letterGrades.append("A+")
        } else if grade > 3.7 {
            letterGrades.append("A")
        } else if grade > 3.3 {
            letterGrades.append("A-")
        } else if grade > 3.0 {
            letterGrades.append("B+")
        } else if grade > 2.7 {
            letterGrades.append("B")
        } else if grade > 2.3 {
            letterGrades.append("B-")
        } else if grade > 2.0 {
            letterGrades.append("C+")
        } else if grade > 1.7 {
            letterGrades.append("C")
        } else if grade > 1.3 {
            letterGrades.append("C-")
        } else if grade > 1.0 {
            letterGrades.append("D+")
        } else if grade > 0.7 {
            letterGrades.append("D")
        } else if grade > 0.0 {
            letterGrades.append("D-")
        } else {
            letterGrades.append("E")
        }
    }
    return letterGrades
}
<|file_separator|>

func primeLength(string: String) -> Bool {
    if string.count == 1 {
        return false
    }
    for i in 2...string.count {
        if string.count % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Write a function that takes a string and returns true if the string
// length is a prime number or false otherwise
// Examples
// primeLength(string: "Hello") == true
// primeLength(string: "abcdcba") == true
// primeLength(string: "kittens") == true
// primeLength(string: "orange") == false
func primeLength(string: String) -> Bool {
    if string.count == 1 {
        return false
    }
    for i in 2...string.count {
        if string.count % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func primeLength(string: String) -> Bool {
    let stringArray = Array(string)
    var prime = true
    for i in 0..<stringArray.count {
        for j in 0..<stringArray.count {
            if i != j && stringArray[i] == stringArray[j] {
                prime = false
            }
        }
    }
    return prime
}
```swift
// Write a function that takes a string and returns true if the string
// length is a prime number or false otherwise
// Examples
// primeLength(string: "Hello") == true
// primeLength(string: "abcdcba") == true
// primeLength(string: "kittens") == true
// primeLength(string: "orange") == false
func primeLength(string: String) -> Bool {
    let stringArray = Array(string)
    var prime = true
    for i in 0..<stringArray.count {
        for j in 0..<stringArray.count {
            if i != j && stringArray[i] == stringArray[j] {
                prime = false
            }
        }
    }
    return prime
}
<|file_separator|>
 // XCTAssertTrue failed

func primeLength(string: String) -> Bool {
    if string.count == 1 {
        return false
    }
    for i in 2...string.count {
        if string.count % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Write a function that takes a string and returns true if the string
// length is a prime number or false otherwise
// Examples
// primeLength(string: "Hello") == true
// primeLength(string: "abcdcba") == true
// primeLength(string: "kittens") == true
// primeLength(string: "orange") == false
func primeLength(string: String) -> Bool {
    if string.count == 1 {
        return false
    }
    for i in 2...string.count {
        if string.count % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func primeLength(string: String) -> Bool {
    let stringArray = Array(string)
    let stringLength = stringArray.count
    if stringLength == 1 {
        return false
    }
    for i in 2...stringLength {
        if stringLength % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Write a function that takes a string and returns true if the string
// length is a prime number or false otherwise
// Examples
// primeLength(string: "Hello") == true
// primeLength(string: "abcdcba") == true
// primeLength(string: "kittens") == true
// primeLength(string: "orange") == false
func primeLength(string: String) -> Bool {
    let stringArray = Array(string)
    let stringLength = stringArray.count
    if stringLength == 1 {
        return false
    }
    for i in 2...stringLength {
        if stringLength % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func primeLength(string: String) -> Bool {
    let stringArray = Array(string)
    var isPrime = true
    for i in 0..<stringArray.count {
        for j in 0..<stringArray.count {
            if i != j {
                if stringArray[i] == stringArray[j] {
                    isPrime = false
                }
            }
        }
    }
    return isPrime
}
```swift
// Write a function that takes a string and returns true if the string
// length is a prime number or false otherwise
// Examples
// primeLength(string: "Hello") == true
// primeLength(string: "abcdcba") == true
// primeLength(string: "kittens") == true
// primeLength(string: "orange") == false
func primeLength(string: String) -> Bool {
    let stringArray = Array(string)
    var isPrime = true
    for i in 0..<stringArray.count {
        for j in 0..<stringArray.count {
            if i != j {
                if stringArray[i] == stringArray[j] {
                    isPrime = false
                }
            }
        }
    }
    return isPrime
}
<|file_separator|>
 // XCTAssertTrue failed

func primeLength(string: String) -> Bool {
    var stringLength = string.count
    var isPrime = true
    for i in 2...stringLength {
        if stringLength % i == 0 {
            isPrime = false
        }
    }
    return isPrime
}
```swift
// Write a function that takes a string and returns true if the string
// length is a prime number or false otherwise
// Examples
// primeLength(string: "Hello") == true
// primeLength(string: "abcdcba") == true
// primeLength(string: "kittens") == true
// primeLength(string: "orange") == false
func primeLength(string: String) -> Bool {
    var stringLength = string.count
    var isPrime = true
    for i in 2...stringLength {
        if stringLength % i == 0 {
            isPrime = false
        }
    }
    return isPrime
}
<|file_separator|>
var stringLength = string.count // variable 'stringLength' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func primeLength(string: String) -> Bool {
    var prime = true
    for i in 2...string.count {
        if string.count % i == 0 {
            prime = false
        }
    }
    return prime
}
```swift
// Write a function that takes a string and returns true if the string
// length is a prime number or false otherwise
// Examples
// primeLength(string: "Hello") == true
// primeLength(string: "abcdcba") == true
// primeLength(string: "kittens") == true
// primeLength(string: "orange") == false
func primeLength(string: String) -> Bool {
    var prime = true
    for i in 2...string.count {
        if string.count % i == 0 {
            prime = false
        }
    }
    return prime
}
<|file_separator|>
 // XCTAssertTrue failed

func primeLength(string: String) -> Bool {
    var prime = true
    for i in 2...string.count {
        if string.count % i == 0 {
            prime = false
        }
    }
    return prime
}

func palindrome(string: String) -> Bool {
    var reverse = ""
    for i in string.reversed() {
        reverse += String(i)
    }
    return string == reverse
}

func pangram(string: String) -> Bool {
    let alphabet = "abcdefghijklmnopqrstuvwxyz"
    var pangram = true
    for i in alphabet {
        if !string.contains(i) {
            pangram = false
        }
    }
    return pangram
}
```swift
// Write a function that takes a string and returns true if the string
// length is a prime number or false otherwise
// Examples
// primeLength(string: "Hello") == true
// primeLength(string: "abcdcba") == true
// primeLength(string: "kittens") == true
// primeLength(string: "orange") == false
func primeLength(string: String) -> Bool {
    var prime = true
    for i in 2...string.count {
        if string.count % i == 0 {
            prime = false
        }
    }
    return prime
}

// Write a function that takes a string and returns true if the string
// is a palindrome or false otherwise
// Examples
// palindrome(string: "racecar") == true
// palindrome(string: "hello") == false
func palindrome(string: String) -> Bool {
    var reverse = ""
    for i in string.reversed() {
        reverse += String(i)
    }
    return string == reverse
}

// Write a function that takes a string and returns true if the string
// is a pangram or false otherwise
// Examples
// pangram(string: "The quick brown fox jumps over the lazy dog") == true
// pangram(string: "The quick brown fox jumps over the dog") == false
func pangram(string: String) -> Bool {
    let alphabet = "abcdefghijklmnopqrstuvwxyz"
    var pangram = true
    for i in alphabet {
        if !string.contains(i) {
            pangram = false
        }
    }
    return pangram
}

// Write a function that takes a string and returns true if the string
// is a palindrome or false otherwise
// Examples
// palindrome(string: "racecar") == true
// palindrome(string: "hello") == false
func palindrome(string: String) -> Bool {
    var reverse = ""
    for i in string.reversed() {
        reverse += String(i)
    }
    return string == reverse
}

// Write a function that takes a string and returns true if the string
// is a pangram or false otherwise
// Examples
// pangram(string: "The quick brown fox jumps over the lazy dog") == true
// pangram(string: "The quick brown fox jumps over the dog") == false
func pangram(string: String) -> Bool {
    let alphabet = "abcdefghijklmnopqrstuvwxyz"
    var pangram = true
    for i in alphabet {
        if !string.contains(i) {
            pangram = false
        }
    }
    return pangram
}

// Write a function that takes a string and returns true if the string
// is a palindrome or false otherwise
// Examples
// palindrome(string: "racecar") == true
// palindrome(string: "hello") == false
func palindrome(string: String) -> Bool {
    var reverse = ""
    for i in string.reversed() {
        reverse += String(i)
    }
    return string == reverse
}

// Write a function that takes a string and returns true if the string
// is a pangram or false otherwise
// Examples
// pangram(string: "The quick brown fox jumps over the lazy dog") == true
// pangram(string: "The quick brown fox jumps over the dog") == false
func pangram(string: String) -> Bool {
    let alphabet = "abcdefghijklmnopqrstuvwxyz"
    var pangram = true
    for i in alphabet {
        if !string.contains(i) {
            pangram = false
        }
    }
    return pangram
}

// Write a function that takes a string and returns true if the string
// is a palindrome or false otherwise
// Examples
// palindrome(string: "racecar") == true
// palindrome(string: "hello") == false
func palindrome(string: String) -> Bool {
    var reverse = ""
    for i in string.reversed() {
        reverse += String(i)
    }
    return string == reverse
}

// Write a function that takes a string and returns true if the string
// is a pangram or false otherwise
// Examples
// pangram(string: "The quick brown fox jumps over the lazy dog") == true
// pangram(string: "The quick brown fox jumps over the dog") == false
func pangram(string: String) -> Bool {
    let alphabet = "abcdefghijklmnopqrstuvwxyz"
    var pangram = true
    for i in alphabet {
        if !string.contains(i) {
            pangram = false
        }
    }
    return pangram
}

// Write a function that takes a string and returns true if the string
// is a palindrome or false otherwise
// Examples
// palindrome(string: "racecar") == true
// palindrome(string: "hello") == false
func palindrome(string: String) -> Bool {
    var reverse = ""
    for i in string.
 // XCTAssertTrue failed

func primeLength(string: String) -> Bool {
    if string.count % 2 == 0 {
        return false
    }
    for i in 3...string.count {
        if string.count % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Write a function that takes a string and returns true if the string
// length is a prime number or false otherwise
// Examples
// primeLength(string: "Hello") == true
// primeLength(string: "abcdcba") == true
// primeLength(string: "kittens") == true
// primeLength(string: "orange") == false
func primeLength(string: String) -> Bool {
    if string.count % 2 == 0 {
        return false
    }
    for i in 3...string.count {
        if string.count % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func primeLength(string: String) -> Bool {
    if string.count == 1 {
        return false
    }
    for i in 2...string.count {
        if string.count % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Write a function that takes a string and returns true if the string
// length is a prime number or false otherwise
// Examples
// primeLength(string: "Hello") == true
// primeLength(string: "abcdcba") == true
// primeLength(string: "kittens") == true
// primeLength(string: "orange") == false
func primeLength(string: String) -> Bool {
    if string.count == 1 {
        return false
    }
    for i in 2...string.count {
        if string.count % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func startsOneEnds(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i == 1 || i == 10 {
            count += 1
        }
        if i % 10 == 1 || i % 10 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
func startsOneEnds(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i == 1 || i == 10 {
            count += 1
        }
        if i % 10 == 1 || i % 10 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func startsOneEnds(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    if i % 10 == 1 {
      count += 1
    }
    if i % 100 == 10 || i % 100 == 11 {
      count += 1
    }
  }
  return count
}

func allOnes(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    var num = i
    while num > 0 {
      if num % 10 != 1 {
        break
      }
      num /= 10
    }
    if num == 0 {
      count += 1
    }
  }
  return count
}
```swift
// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
func startsOneEnds(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    if i % 10 == 1 {
      count += 1
    }
    if i % 100 == 10 || i % 100 == 11 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits 1.
func allOnes(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    var num = i
    while num > 0 {
      if num % 10 != 1 {
        break
      }
      num /= 10
    }
    if num == 0 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits 1.
func allOnes(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    var num = i
    while num > 0 {
      if num % 10 != 1 {
        break
      }
      num /= 10
    }
    if num == 0 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits 1.
func allOnes(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    var num = i
    while num > 0 {
      if num % 10 != 1 {
        break
      }
      num /= 10
    }
    if num == 0 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits 1.
func allOnes(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    var num = i
    while num > 0 {
      if num % 10 != 1 {
        break
      }
      num /= 10
    }
    if num == 0 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits 1.
func allOnes(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    var num = i
    while num > 0 {
      if num % 10 != 1 {
        break
      }
      num /= 10
    }
    if num == 0 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits 1.
func allOnes(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    var num = i
    while num > 0 {
      if num % 10 != 1 {
        break
      }
      num /= 10
    }
    if num == 0 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits 1.
func allOnes(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    var num = i
    while num > 0 {
      if num % 10 != 1 {
        break
      }
      num /= 10
    }
    if num == 0 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits 1.
func allOnes(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    var
 // XCTAssertTrue failed

func startsOneEnds(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    if i.isOneEnd() {
      count += 1
    }
  }
  return count
}

extension Int {
  func isOneEnd() -> Bool {
    return self % 10 == 1 || self / 10 % 10 == 1
  }
}
```swift
// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
func startsOneEnds(n: Int) -> Int {
  var count = 0
  for i in 1...n {
    if i.isOneEnd() {
      count += 1
    }
  }
  return count
}

extension Int {
  func isOneEnd() -> Bool {
    return self % 10 == 1 || self / 10 % 10 == 1
  }
}
<|file_separator|>
 // XCTAssertTrue failed

func startsOneEnds(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func countOfDigits(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  while n > 0 {
    n /= 10
    count += 1
  }
  return count
}

func startsOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func endsOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func secondOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func thirdOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func fourthOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func fifthOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}
```swift
// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
func startsOneEnds(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func countOfDigits(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  while n > 0 {
    n /= 10
    count += 1
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the first digit.
func startsOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func countOfDigits(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  while n > 0 {
    n /= 10
    count += 1
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the last digit.
func endsOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func countOfDigits(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  while n > 0 {
    n /= 10
    count += 1
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the second digit.
func secondOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func countOfDigits(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  while n > 0 {
    n /= 10
    count += 1
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the third digit.
func thirdOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func countOfDigits(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  while n > 0 {
    n /= 10
    count += 1
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the fourth digit.
func fourthOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func countOfDigits(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  while n > 0 {
    n /= 10
    count += 1
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the fifth digit.
func fifthOne(n: Int) -> Int {
  if n < 1 {
    return 0
  }
  var count = 0
  for i in 1...n {
    count += countOfDigits(i)
  }
  return count
}

func countOfDigits(
count += countOfDigits(i) // missing argument label 'n:' in call
n /= 10 // left side of mutating operator isn't mutable: 'n' is a 'let' constant
count += countOfDigits(i) // missing argument label 'n:' in call
count += countOfDigits(i) // missing argument label 'n:' in call
count += countOfDigits(i) // missing argument label 'n:' in call
count += countOfDigits(i) // missing argument label 'n:' in call
count += countOfDigits(i) // missing argument label 'n:' in call
count += countOfDigits(i) // missing argument label 'n:' in call

func startsOneEnds(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        var num = i
        while num > 0 {
            if num % 10 == 1 {
                count++
                break
            }
            num /= 10
        }
    }
    return count
}
```swift
// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
func startsOneEnds(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        var num = i
        while num > 0 {
            if num % 10 == 1 {
                count++
                break
            }
            num /= 10
        }
    }
    return count
}
<|file_separator|>
count++ // cannot find operator '++' in scope; did you mean '+= 1'?

func startsOneEnds(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if startsOneEnds(i) == 1 {
      count += 1
    }
  }
  return count
}

func startsOnes(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if startsOnes(i) == 1 {
      count += 1
    }
  }
  return count
}

func endsOnes(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if endsOnes(i) == 1 {
      count += 1
    }
  }
  return count
}

func startsOnesFirstDigit(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if startsOnesFirstDigit(i) == 1 {
      count += 1
    }
  }
  return count
}

func endsOnesLastDigit(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if endsOnesLastDigit(i) == 1 {
      count += 1
    }
  }
  return count
}

func startsOnesFirstAndLastDigit(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if startsOnesFirstAndLastDigit(i) == 1 {
      count += 1
    }
  }
  return count
}
```swift
// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
func startsOneEnds(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if startsOneEnds(i) == 1 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start with 1.
func startsOnes(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if startsOnes(i) == 1 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that end with 1.
func endsOnes(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if endsOnes(i) == 1 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the first digit.
func startsOnesFirstDigit(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if startsOnesFirstDigit(i) == 1 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the last digit.
func endsOnesLastDigit(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if endsOnesLastDigit(i) == 1 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the first and last digit.
func startsOnesFirstAndLastDigit(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if startsOnesFirstAndLastDigit(i) == 1 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the first digit and 1 as the last digit.
func startsOnesFirstAndLastDigit(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if startsOnesFirstAndLastDigit(i) == 1 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the first digit and 1 as the last digit.
func startsOnesFirstAndLastDigit(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if startsOnesFirstAndLastDigit(i) == 1 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the first digit and 1 as the last digit.
func startsOnesFirstAndLastDigit(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  var count = 0
  for i in 1...n {
    if startsOnesFirstAndLastDigit(i) == 1 {
      count += 1
    }
  }
  return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have 1 as the first digit and 1 as the last digit.
func startsOnesFirstAndLastDigit(n: Int) -> Int {
if startsOneEnds(i) == 1 { // missing argument label 'n:' in call
if startsOnes(i) == 1 { // missing argument label 'n:' in call
if endsOnes(i) == 1 { // missing argument label 'n:' in call
if startsOnesFirstDigit(i) == 1 { // missing argument label 'n:' in call
if endsOnesLastDigit(i) == 1 { // missing argument label 'n:' in call
if startsOnesFirstAndLastDigit(i) == 1 { // missing argument label 'n:' in call

func startsOneEnds(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  return startsOneEnds(n - 1) + startsOneEnds(n - 2)
}

func allDigits(n: Int) -> Int {
  if n == 1 {
    return 10
  }
  return allDigits(n - 1) * 9
}

func startsOneEndsAllDigits(n: Int) -> Int {
  if n == 1 {
    return 10
  }
  return startsOneEndsAllDigits(n - 1) * 9
}
```swift
// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
func startsOneEnds(n: Int) -> Int {
  if n == 1 {
    return 1
  }
  return startsOneEnds(n - 1) + startsOneEnds(n - 2)
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits in the set {1, 2, 3, 4, 5, 6, 7, 8, 9}.
func allDigits(n: Int) -> Int {
  if n == 1 {
    return 10
  }
  return allDigits(n - 1) * 9
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits in the set {1, 2, 3, 4, 5, 6, 7, 8, 9}
// and start or end with 1.
func startsOneEndsAllDigits(n: Int) -> Int {
  if n == 1 {
    return 10
  }
  return startsOneEndsAllDigits(n - 1) * 9
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits in the set {1, 2, 3, 4, 5, 6, 7, 8, 9}
// and start or end with 1.
func startsOneEndsAllDigits(n: Int) -> Int {
  if n == 1 {
    return 10
  }
  return startsOneEndsAllDigits(n - 1) * 9
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits in the set {1, 2, 3, 4, 5, 6, 7, 8, 9}
// and start or end with 1.
func startsOneEndsAllDigits(n: Int) -> Int {
  if n == 1 {
    return 10
  }
  return startsOneEndsAllDigits(n - 1) * 9
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits in the set {1, 2, 3, 4, 5, 6, 7, 8, 9}
// and start or end with 1.
func startsOneEndsAllDigits(n: Int) -> Int {
  if n == 1 {
    return 10
  }
  return startsOneEndsAllDigits(n - 1) * 9
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits in the set {1, 2, 3, 4, 5, 6, 7, 8, 9}
// and start or end with 1.
func startsOneEndsAllDigits(n: Int) -> Int {
  if n == 1 {
    return 10
  }
  return startsOneEndsAllDigits(n - 1) * 9
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits in the set {1, 2, 3, 4, 5, 6, 7, 8, 9}
// and start or end with 1.
func startsOneEndsAllDigits(n: Int) -> Int {
  if n == 1 {
    return 10
  }
  return startsOneEndsAllDigits(n - 1) * 9
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits in the set {1, 2, 3, 4, 5, 6, 7, 8, 9}
// and start or end with 1.
func startsOneEndsAllDigits(n: Int) -> Int {
  if n == 1 {
    return 10
  }
  return startsOneEndsAllDigits(n - 1) * 9
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits in the set {1, 2, 3, 4, 5, 6, 7, 8, 9}
// and start or end with 
return startsOneEnds(n - 1) + startsOneEnds(n - 2) // missing argument label 'n:' in call
return startsOneEnds(n - 1) + startsOneEnds(n - 2) // missing argument label 'n:' in call
return allDigits(n - 1) * 9 // missing argument label 'n:' in call
return startsOneEndsAllDigits(n - 1) * 9 // missing argument label 'n:' in call

func startsOneEnds(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 {
            count += 1
        }
        if i / 10 == 1 {
            count += 1
        }
    }
    return count
}

func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 && (i / 10) % 10 == 1 {
            count += 1
        }
    }
    return count
}
```swift
// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
func startsOneEnds(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 {
            count += 1
        }
        if i / 10 == 1 {
            count += 1
        }
    }
    return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all 1s in their digits.
func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 && (i / 10) % 10 == 1 {
            count += 1
        }
    }
    return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all 1s in their digits.
func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 && (i / 10) % 10 == 1 {
            count += 1
        }
    }
    return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all 1s in their digits.
func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 && (i / 10) % 10 == 1 {
            count += 1
        }
    }
    return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all 1s in their digits.
func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 && (i / 10) % 10 == 1 {
            count += 1
        }
    }
    return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all 1s in their digits.
func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 && (i / 10) % 10 == 1 {
            count += 1
        }
    }
    return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all 1s in their digits.
func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 && (i / 10) % 10 == 1 {
            count += 1
        }
    }
    return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all 1s in their digits.
func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 && (i / 10) % 10 == 1 {
            count += 1
        }
    }
    return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all 1s in their digits.
func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 && (i / 10) % 10 == 1 {
            count += 1
        }
    }
    return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all 1s in their digits.
func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 && (i / 10) % 10 == 1 {
            count += 1
        }
    }
    return count
}

//
 // XCTAssertTrue failed

func startsOneEnds(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i == 1 || i == 10 {
            count += 1
        }
    }
    return count
}
```swift
// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
func startsOneEnds(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i == 1 || i == 10 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func startsOneEnds(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 || (i >= 10 && i % 100 == 1) {
            count += 1
        }
    }
    return count
}

func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        var num = i
        while num > 0 {
            if num % 10 != 1 {
                break
            }
            num /= 10
        }
        if num == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that start or end with 1.
func startsOneEnds(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        if i % 10 == 1 || (i >= 10 && i % 100 == 1) {
            count += 1
        }
    }
    return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits 1.
func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        var num = i
        while num > 0 {
            if num % 10 != 1 {
                break
            }
            num /= 10
        }
        if num == 0 {
            count += 1
        }
    }
    return count
}

// Given a positive integer n, return the count of the numbers of n-digit
// positive integers that have all digits 1.
func allOnes(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        var num = i
        while num > 0 {
            if num % 10 != 1 {
                break
            }
            num /= 10
        }
        if num == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func solve(N: Int) -> String {
    var sum = 0
    var N = N
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return String(sum)
}
```swift
// Given a positive integer N, return the total sum of its digits in binary.
// Example
// Variables:
// @N integer
// Constraints: 0 ≤ N ≤ 10000.
// Output:
// a string of binary number
// solve(N: 1000) == "1"
// solve(N: 150) == "110"
// solve(N: 147) == "1100"
func solve(N: Int) -> String {
    var sum = 0
    var N = N
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return String(sum)
}
<|file_separator|>```
 // XCTAssertTrue failed

func solve(N: Int) -> String {
    var N = N
    var sum = 0
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return sum.description
}
```swift
// Given a positive integer N, return the total sum of its digits in binary.
// Example
// Variables:
// @N integer
// Constraints: 0 ≤ N ≤ 10000.
// Output:
// a string of binary number
// solve(N: 1000) == "1"
// solve(N: 150) == "110"
// solve(N: 147) == "1100"
func solve(N: Int) -> String {
    var N = N
    var sum = 0
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return sum.description
}
<|file_separator|>```
 // XCTAssertTrue failed

func solve(N: Int) -> String {
    var N = N
    var sum = 0
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return sum.description
}
```swift
// Given a positive integer N, return the total sum of its digits in binary.
// Example
// Variables:
// @N integer
// Constraints: 0 ≤ N ≤ 10000.
// Output:
// a string of binary number
// solve(N: 1000) == "1"
// solve(N: 150) == "110"
// solve(N: 147) == "1100"
func solve(N: Int) -> String {
    var N = N
    var sum = 0
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return sum.description
}
<|file_separator|>
 // XCTAssertTrue failed

func solve(N: Int) -> String {
    var N = N
    var result = ""
    while N > 0 {
        result = String(N % 2) + result
        N /= 2
    }
    return result
}
```swift
// Given a positive integer N, return the total sum of its digits in binary.
// Example
// Variables:
// @N integer
// Constraints: 0 ≤ N ≤ 10000.
// Output:
// a string of binary number
// solve(N: 1000) == "1"
// solve(N: 150) == "110"
// solve(N: 147) == "1100"
func solve(N: Int) -> String {
    var N = N
    var result = ""
    while N > 0 {
        result = String(N % 2) + result
        N /= 2
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func solve(N: Int) -> String {
    var N = N
    var sum = 0
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return sum.description
}
```swift
// Given a positive integer N, return the total sum of its digits in binary.
// Example
// Variables:
// @N integer
// Constraints: 0 ≤ N ≤ 10000.
// Output:
// a string of binary number
// solve(N: 1000) == "1"
// solve(N: 150) == "110"
// solve(N: 147) == "1100"
func solve(N: Int) -> String {
    var N = N
    var sum = 0
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return sum.description
}
<|file_separator|>
 // XCTAssertTrue failed

func solve(N: Int) -> String {
    var N = N
    var sum = 0
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return sum.description
}
```swift
// Given a positive integer N, return the total sum of its digits in binary.
// Example
// Variables:
// @N integer
// Constraints: 0 ≤ N ≤ 10000.
// Output:
// a string of binary number
// solve(N: 1000) == "1"
// solve(N: 150) == "110"
// solve(N: 147) == "1100"
func solve(N: Int) -> String {
    var N = N
    var sum = 0
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return sum.description
}
<|file_separator|>
 // XCTAssertTrue failed

func solve(N: Int) -> String {
    var N = N
    var result = ""
    while N > 0 {
        result = "\(N % 2)" + result
        N /= 2
    }
    return result
}
```swift
// Given a positive integer N, return the total sum of its digits in binary.
// Example
// Variables:
// @N integer
// Constraints: 0 ≤ N ≤ 10000.
// Output:
// a string of binary number
// solve(N: 1000) == "1"
// solve(N: 150) == "110"
// solve(N: 147) == "1100"
func solve(N: Int) -> String {
    var N = N
    var result = ""
    while N > 0 {
        result = "\(N % 2)" + result
        N /= 2
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func solve(N: Int) -> String {
    var binary = ""
    var n = N
    while n > 0 {
        binary = String(n % 2) + binary
        n /= 2
    }
    return binary
}
```swift
// Given a positive integer N, return the total sum of its digits in binary.
// Example
// Variables:
// @N integer
// Constraints: 0 ≤ N ≤ 10000.
// Output:
// a string of binary number
// solve(N: 1000) == "1"
// solve(N: 150) == "110"
// solve(N: 147) == "1100"
func solve(N: Int) -> String {
    var binary = ""
    var n = N
    while n > 0 {
        binary = String(n % 2) + binary
        n /= 2
    }
    return binary
}
<|file_separator|>
 // XCTAssertTrue failed

func solve(N: Int) -> String {
    var N = N
    var sum = 0
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return sum.description
}
```swift
// Given a positive integer N, return the total sum of its digits in binary.
// Example
// Variables:
// @N integer
// Constraints: 0 ≤ N ≤ 10000.
// Output:
// a string of binary number
// solve(N: 1000) == "1"
// solve(N: 150) == "110"
// solve(N: 147) == "1100"
func solve(N: Int) -> String {
    var N = N
    var sum = 0
    while N > 0 {
        sum += N % 2
        N /= 2
    }
    return sum.description
}
<|file_separator|>
 // XCTAssertTrue failed

func solve(N: Int) -> String {
    var N = N
    var result = ""
    while N > 0 {
        result = String(N % 2) + result
        N /= 2
    }
    return result
}
```swift
// Given a positive integer N, return the total sum of its digits in binary.
// Example
// Variables:
// @N integer
// Constraints: 0 ≤ N ≤ 10000.
// Output:
// a string of binary number
// solve(N: 1000) == "1"
// solve(N: 150) == "110"
// solve(N: 147) == "1100"
func solve(N: Int) -> String {
    var N = N
    var result = ""
    while N > 0 {
        result = String(N % 2) + result
        N /= 2
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 != 0 {
            sum += lst[i]
        }
    }
    return sum
}

func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 != 0 {
            sum += lst[i]
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the even elements that are at even indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 != 0 {
            sum += lst[i]
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at even indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at even indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at even indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at even indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at even indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at even indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at even indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    
func add(lst: [Int]) -> Int { // invalid redeclaration of 'add(lst:)'

func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 1 {
            sum += lst[i]
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 1 {
            sum += lst[i]
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    
 // XCTAssertTrue failed

func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 {
            sum += value
        }
    }
    return sum
}

func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the even elements that are at even indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at even indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at even indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 {
            sum += value
        }
    }
    return sum
}

// Given a non-empty array of integers lst. add the odd elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 {
            sum += value
        }
    
func add(lst: [Int]) -> Int { // invalid redeclaration of 'add(lst:)'

func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 1 {
            sum += lst[i]
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 1 {
            sum += lst[i]
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 != 0 {
            sum += lst[i]
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 != 0 {
            sum += lst[i]
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 != 0 {
            sum += lst[i]
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 != 0 {
            sum += lst[i]
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers lst. add the even elements that are at odd indices..
// Examples:
// add(lst: [4, 2, 6, 7]) == 2
func add(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func antiShuffle(s: String) -> String {
  var result = ""
  var words = s.components(separatedBy: " ")
  for i in 0..<words.count {
    var word = words[i]
    var chars = Array(word)
    chars.sort()
    result += chars.joined()
    if i != words.count - 1 {
      result += " "
    }
  }
  return result
}
```swift
// Write a function that takes a string and returns an ordered version of it.
// Ordered version of string, is a string where all words (separated by space)
// are replaced by a new word where all the characters arranged in
// ascending order based on ascii value.
// Note: You should keep the order of words and blank spaces in the sentence.
// For example:
// antiShuffle(s: "Hi") == "Hi"
// antiShuffle(s: "hello") == "ehllo"
// antiShuffle(s: "Hello World!!!") == "Hello !!!Wdlor"
func antiShuffle(s: String) -> String {
  var result = ""
  var words = s.components(separatedBy: " ")
  for i in 0..<words.count {
    var word = words[i]
    var chars = Array(word)
    chars.sort()
    result += chars.joined()
    if i != words.count - 1 {
      result += " "
    }
  }
  return result
}
<|file_separator|>
result += chars.joined() // no exact matches in call to instance method 'joined'

```swift
// Write a function that takes a string and returns an ordered version of it.
// Ordered version of string, is a string where all words (separated by space)
// are replaced by a new word where all the characters arranged in
// ascending order based on ascii value.
// Note: You should keep the order of words and blank spaces in the sentence.
// For example:
// antiShuffle(s: "Hi") == "Hi"
// antiShuffle(s: "hello") == "ehllo"
// antiShuffle(s: "Hello World!!!") == "Hello !!!Wdlor"
func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.components(separatedBy: " ")
    var wordsCount = words.count
    var wordsIndex = 0
    var wordsIndex2 = 0
    var wordsIndex3 = 0
    var wordsIndex4 = 0
    var wordsIndex5 = 0
    var wordsIndex6 = 0
    var wordsIndex7 = 0
    var wordsIndex8 = 0
    var wordsIndex9 = 0
    var wordsIndex10 = 0
    var wordsIndex11 = 0
    var wordsIndex12 = 0
    var wordsIndex13 = 0
    var wordsIndex14 = 0
    var wordsIndex15 = 0
    var wordsIndex16 = 0
    var wordsIndex17 = 0
    var wordsIndex18 = 0
    var wordsIndex19 = 0
    var wordsIndex20 = 0
    var wordsIndex21 = 0
    var wordsIndex22 = 0
    var wordsIndex23 = 0
    var wordsIndex24 = 0
    var wordsIndex25 = 0
    var wordsIndex26 = 0
    var wordsIndex27 = 0
    var wordsIndex28 = 0
    var wordsIndex29 = 0
    var wordsIndex30 = 0
    var wordsIndex31 = 0
    var wordsIndex32 = 0
    var wordsIndex33 = 0
    var wordsIndex34 = 0
    var wordsIndex35 = 0
    var wordsIndex36 = 0
    var wordsIndex37 = 0
    var wordsIndex38 = 0
    var wordsIndex39 = 0
    var wordsIndex40 = 0
    var wordsIndex41 = 0
    var wordsIndex42 = 0
    var wordsIndex43 = 0
    var wordsIndex44 = 0
    var wordsIndex45 = 0
    var wordsIndex46 = 0
    var wordsIndex47 = 0
    var wordsIndex48 = 0
    var wordsIndex49 = 0
    var wordsIndex50 = 0
    var wordsIndex51 = 0
    var wordsIndex52 = 0
    var wordsIndex53 = 0
    var wordsIndex54 = 0
    var wordsIndex55 = 0
    var wordsIndex56 = 0
    var wordsIndex57 = 0
    var wordsIndex58 = 0
    var wordsIndex59 = 0
    var wordsIndex60 = 0
    var wordsIndex61 = 0
    var wordsIndex62 = 0
    var wordsIndex63 = 0
    var wordsIndex64 = 0
    var wordsIndex65 = 0
    var wordsIndex66 = 0
    var wordsIndex67 = 0
    var wordsIndex68 = 0
    var wordsIndex69 = 0
    var wordsIndex70 = 0
    var wordsIndex71 = 0
    var wordsIndex72 = 0
    var wordsIndex73 = 0
    var wordsIndex74 = 0
    var wordsIndex75 = 0
    var wordsIndex76 = 0
    var wordsIndex77 = 0
    var wordsIndex78 = 0
    var wordsIndex79 = 0
    var wordsIndex80 = 0
    var wordsIndex81 = 0
    var wordsIndex82 = 0
    var wordsIndex83 = 0
    var wordsIndex84 = 0
    var wordsIndex85 = 0
    var wordsIndex86 = 0
    var wordsIndex87 = 0
    var wordsIndex88 = 0
    var wordsIndex89 = 0
    var wordsIndex90 = 0
    var wordsIndex91 = 0
    var wordsIndex92 = 0
    var wordsIndex93 = 0
    var wordsIndex94 = 0
    var wordsIndex95 = 0
    var wordsIndex96 = 0
    var wordsIndex97 = 0
    var wordsIndex98 = 0
    var wordsIndex99 = 0
    var wordsIndex100 = 0
    var words
XCTAssertTrue(antiShuffle(s: "Hi") == "Hi") // cannot find 'antiShuffle' in scope
XCTAssertTrue(antiShuffle(s: "hello") == "ehllo") // cannot find 'antiShuffle' in scope
XCTAssertTrue(antiShuffle(s: "number") == "bemnru") // cannot find 'antiShuffle' in scope
XCTAssertTrue(antiShuffle(s: "abcd") == "abcd") // cannot find 'antiShuffle' in scope
XCTAssertTrue(antiShuffle(s: "Hello World!!!") == "Hello !!!Wdlor") // cannot find 'antiShuffle' in scope
XCTAssertTrue(antiShuffle(s: "") == "") // cannot find 'antiShuffle' in scope
XCTAssertTrue(antiShuffle(s: "Hi. My name is Mister Robot. How are you?") == ".Hi My aemn is Meirst .Rboot How aer ?ouy") // cannot find 'antiShuffle' in scope

func antiShuffle(s: String) -> String {
    let words = s.split(separator: " ")
    var result = ""
    for word in words {
        let chars = Array(word)
        chars.sort()
        result += String(chars)
    }
    return result
}
```swift
// Write a function that takes a string and returns an ordered version of it.
// Ordered version of string, is a string where all words (separated by space)
// are replaced by a new word where all the characters arranged in
// ascending order based on ascii value.
// Note: You should keep the order of words and blank spaces in the sentence.
// For example:
// antiShuffle(s: "Hi") == "Hi"
// antiShuffle(s: "hello") == "ehllo"
// antiShuffle(s: "Hello World!!!") == "Hello !!!Wdlor"
func antiShuffle(s: String) -> String {
    let words = s.split(separator: " ")
    var result = ""
    for word in words {
        let chars = Array(word)
        chars.sort()
        result += String(chars)
    }
    return result
}
<|file_separator|>
chars.sort() // cannot use mutating member on immutable value: 'chars' is a 'let' constant

func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.components(separatedBy: " ")
    var wordsCount = words.count
    var word = ""
    var wordIndex = 0
    var wordLength = 0
    var wordIndexLength = 0
    for _ in 0..<wordsCount {
        word = words[wordIndex]
        wordLength = word.count
        wordIndexLength = wordIndex
        while wordIndexLength < wordLength {
            result += String(word[wordIndexLength])
            wordIndexLength += 1
        }
        wordIndex += 1
    }
    return result
}
```swift
// Write a function that takes a string and returns an ordered version of it.
// Ordered version of string, is a string where all words (separated by space)
// are replaced by a new word where all the characters arranged in
// ascending order based on ascii value.
// Note: You should keep the order of words and blank spaces in the sentence.
// For example:
// antiShuffle(s: "Hi") == "Hi"
// antiShuffle(s: "hello") == "ehllo"
// antiShuffle(s: "Hello World!!!") == "Hello !!!Wdlor"
func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.components(separatedBy: " ")
    var wordsCount = words.count
    var word = ""
    var wordIndex = 0
    var wordLength = 0
    var wordIndexLength = 0
    for _ in 0..<wordsCount {
        word = words[wordIndex]
        wordLength = word.count
        wordIndexLength = wordIndex
        while wordIndexLength < wordLength {
            result += String(word[wordIndexLength])
            wordIndexLength += 1
        }
        wordIndex += 1
    }
    return result
}
<|file_separator|>
var words = s.components(separatedBy: " ") // variable 'words' was never mutated; consider changing to 'let' constant
var wordsCount = words.count // variable 'wordsCount' was never mutated; consider changing to 'let' constant
result += String(word[wordIndexLength]) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.split(separator: " ")
    var wordsSorted = words.sorted(by: { (word1, word2) -> Bool in
        return word1.lowercased() < word2.lowercased()
    })
    for word in wordsSorted {
        result += word
    }
    return result
}
```swift
// Write a function that takes a string and returns an ordered version of it.
// Ordered version of string, is a string where all words (separated by space)
// are replaced by a new word where all the characters arranged in
// ascending order based on ascii value.
// Note: You should keep the order of words and blank spaces in the sentence.
// For example:
// antiShuffle(s: "Hi") == "Hi"
// antiShuffle(s: "hello") == "ehllo"
// antiShuffle(s: "Hello World!!!") == "Hello !!!Wdlor"
func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.split(separator: " ")
    var wordsSorted = words.sorted(by: { (word1, word2) -> Bool in
        return word1.lowercased() < word2.lowercased()
    })
    for word in wordsSorted {
        result += word
    }
    return result
}
<|file_separator|>
var words = s.split(separator: " ") // variable 'words' was never mutated; consider changing to 'let' constant
var wordsSorted = words.sorted(by: { (word1, word2) -> Bool in // variable 'wordsSorted' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.components(separatedBy: " ")
    var chars = [Character]()
    for word in words {
        for char in word {
            chars.append(char)
        }
    }
    chars = chars.sorted(by: { $0 < $1 })
    for char in chars {
        result += String(char)
    }
    return result
}
```swift
// Write a function that takes a string and returns an ordered version of it.
// Ordered version of string, is a string where all words (separated by space)
// are replaced by a new word where all the characters arranged in
// ascending order based on ascii value.
// Note: You should keep the order of words and blank spaces in the sentence.
// For example:
// antiShuffle(s: "Hi") == "Hi"
// antiShuffle(s: "hello") == "ehllo"
// antiShuffle(s: "Hello World!!!") == "Hello !!!Wdlor"
func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.components(separatedBy: " ")
    var chars = [Character]()
    for word in words {
        for char in word {
            chars.append(char)
        }
    }
    chars = chars.sorted(by: { $0 < $1 })
    for char in chars {
        result += String(char)
    }
    return result
}
<|file_separator|>
var words = s.components(separatedBy: " ") // variable 'words' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.components(separatedBy: " ")
    var sortedWords = words.sorted(by: { $0 < $1 })
    for word in sortedWords {
        result += word
    }
    return result
}
```swift
// Write a function that takes a string and returns an ordered version of it.
// Ordered version of string, is a string where all words (separated by space)
// are replaced by a new word where all the characters arranged in
// ascending order based on ascii value.
// Note: You should keep the order of words and blank spaces in the sentence.
// For example:
// antiShuffle(s: "Hi") == "Hi"
// antiShuffle(s: "hello") == "ehllo"
// antiShuffle(s: "Hello World!!!") == "Hello !!!Wdlor"
func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.components(separatedBy: " ")
    var sortedWords = words.sorted(by: { $0 < $1 })
    for word in sortedWords {
        result += word
    }
    return result
}
<|file_separator|>
var words = s.components(separatedBy: " ") // variable 'words' was never mutated; consider changing to 'let' constant
var sortedWords = words.sorted(by: { $0 < $1 }) // variable 'sortedWords' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.components(separatedBy: " ")
    var sortedWords = words.sorted {
        $0.lowercased() < $1.lowercased()
    }
    for word in sortedWords {
        result += word
    }
    return result
}
```swift
// Write a function that takes a string and returns an ordered version of it.
// Ordered version of string, is a string where all words (separated by space)
// are replaced by a new word where all the characters arranged in
// ascending order based on ascii value.
// Note: You should keep the order of words and blank spaces in the sentence.
// For example:
// antiShuffle(s: "Hi") == "Hi"
// antiShuffle(s: "hello") == "ehllo"
// antiShuffle(s: "Hello World!!!") == "Hello !!!Wdlor"
func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.components(separatedBy: " ")
    var sortedWords = words.sorted {
        $0.lowercased() < $1.lowercased()
    }
    for word in sortedWords {
        result += word
    }
    return result
}
<|file_separator|>
var words = s.components(separatedBy: " ") // variable 'words' was never mutated; consider changing to 'let' constant
var sortedWords = words.sorted { // variable 'sortedWords' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.split(separator: " ")
    var words2 = [String]()
    for word in words {
        var chars = Array(word)
        chars.sort()
        words2.append(String(chars))
    }
    for word in words2 {
        result += word
    }
    return result
}
```swift
// Write a function that takes a string and returns an ordered version of it.
// Ordered version of string, is a string where all words (separated by space)
// are replaced by a new word where all the characters arranged in
// ascending order based on ascii value.
// Note: You should keep the order of words and blank spaces in the sentence.
// For example:
// antiShuffle(s: "Hi") == "Hi"
// antiShuffle(s: "hello") == "ehllo"
// antiShuffle(s: "Hello World!!!") == "Hello !!!Wdlor"
func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.split(separator: " ")
    var words2 = [String]()
    for word in words {
        var chars = Array(word)
        chars.sort()
        words2.append(String(chars))
    }
    for word in words2 {
        result += word
    }
    return result
}
<|file_separator|>
var words = s.split(separator: " ") // variable 'words' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.split(separator: " ")
    for word in words {
        var chars = Array(word)
        chars.sort()
        result += String(chars)
    }
    return result
}
```swift
// Write a function that takes a string and returns an ordered version of it.
// Ordered version of string, is a string where all words (separated by space)
// are replaced by a new word where all the characters arranged in
// ascending order based on ascii value.
// Note: You should keep the order of words and blank spaces in the sentence.
// For example:
// antiShuffle(s: "Hi") == "Hi"
// antiShuffle(s: "hello") == "ehllo"
// antiShuffle(s: "Hello World!!!") == "Hello !!!Wdlor"
func antiShuffle(s: String) -> String {
    var result = ""
    var words = s.split(separator: " ")
    for word in words {
        var chars = Array(word)
        chars.sort()
        result += String(chars)
    }
    return result
}
<|file_separator|>```
var words = s.split(separator: " ") // variable 'words' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for (i, row) in lst.enumerated() {
        for (j, value) in row.enumerated() {
            if value == x {
                result.append((i, j))
            }
        }
    }
    return result
}
```swift
// You are given a 2 dimensional data, as a nested arrays,
// which is similar to matrix, however, unlike matrices,
// each row may contain a different number of columns.
// Given lst, and integer x, find integers x in the array,
// and return array of tuples, [(x1, y1), (x2, y2) ...] such that
// each tuple is a coordinate - (row, columns), starting with 0.
// Sort coordinates initially by rows in ascending order.
// Also, sort coordinates of the row by columns in descending order.
// Examples:
// getRow(lst: [[1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 1, 6], [1, 2, 3, 4, 5, 1]], x: 1) == [(0, 0), (1, 4), (1, 0), (2, 5), (2, 0)]
// getRow(lst: [] as [[Int]], x: 1) == [] as [(Int, Int)]
// getRow(lst: [[] as [Int], [1], [1, 2, 3]], x: 3) == [(2, 2)]
func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for (i, row) in lst.enumerated() {
        for (j, value) in row.enumerated() {
            if value == x {
                result.append((i, j))
            }
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for i in 0..<lst.count {
        for j in 0..<lst[i].count {
            if lst[i][j] == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted(by: { $0.0 < $1.0 })
}
```swift
// You are given a 2 dimensional data, as a nested arrays,
// which is similar to matrix, however, unlike matrices,
// each row may contain a different number of columns.
// Given lst, and integer x, find integers x in the array,
// and return array of tuples, [(x1, y1), (x2, y2) ...] such that
// each tuple is a coordinate - (row, columns), starting with 0.
// Sort coordinates initially by rows in ascending order.
// Also, sort coordinates of the row by columns in descending order.
// Examples:
// getRow(lst: [[1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 1, 6], [1, 2, 3, 4, 5, 1]], x: 1) == [(0, 0), (1, 4), (1, 0), (2, 5), (2, 0)]
// getRow(lst: [] as [[Int]], x: 1) == [] as [(Int, Int)]
// getRow(lst: [[] as [Int], [1], [1, 2, 3]], x: 3) == [(2, 2)]
func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for i in 0..<lst.count {
        for j in 0..<lst[i].count {
            if lst[i][j] == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted(by: { $0.0 < $1.0 })
}
<|file_separator|>
 // XCTAssertTrue failed

func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var res = [(Int, Int)]()
    for (i, row) in lst.enumerated() {
        for (j, elem) in row.enumerated() {
            if elem == x {
                res.append((i, j))
            }
        }
    }
    return res
}
```swift
// You are given a 2 dimensional data, as a nested arrays,
// which is similar to matrix, however, unlike matrices,
// each row may contain a different number of columns.
// Given lst, and integer x, find integers x in the array,
// and return array of tuples, [(x1, y1), (x2, y2) ...] such that
// each tuple is a coordinate - (row, columns), starting with 0.
// Sort coordinates initially by rows in ascending order.
// Also, sort coordinates of the row by columns in descending order.
// Examples:
// getRow(lst: [[1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 1, 6], [1, 2, 3, 4, 5, 1]], x: 1) == [(0, 0), (1, 4), (1, 0), (2, 5), (2, 0)]
// getRow(lst: [] as [[Int]], x: 1) == [] as [(Int, Int)]
// getRow(lst: [[] as [Int], [1], [1, 2, 3]], x: 3) == [(2, 2)]
func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var res = [(Int, Int)]()
    for (i, row) in lst.enumerated() {
        for (j, elem) in row.enumerated() {
            if elem == x {
                res.append((i, j))
            }
        }
    }
    return res
}
<|file_separator|>
 // XCTAssertTrue failed

func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for i in 0..<lst.count {
        for j in 0..<lst[i].count {
            if lst[i][j] == x {
                result.append((i, j))
            }
        }
    }
    return result
}
```swift
// You are given a 2 dimensional data, as a nested arrays,
// which is similar to matrix, however, unlike matrices,
// each row may contain a different number of columns.
// Given lst, and integer x, find integers x in the array,
// and return array of tuples, [(x1, y1), (x2, y2) ...] such that
// each tuple is a coordinate - (row, columns), starting with 0.
// Sort coordinates initially by rows in ascending order.
// Also, sort coordinates of the row by columns in descending order.
// Examples:
// getRow(lst: [[1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 1, 6], [1, 2, 3, 4, 5, 1]], x: 1) == [(0, 0), (1, 4), (1, 0), (2, 5), (2, 0)]
// getRow(lst: [] as [[Int]], x: 1) == [] as [(Int, Int)]
// getRow(lst: [[] as [Int], [1], [1, 2, 3]], x: 3) == [(2, 2)]
func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for i in 0..<lst.count {
        for j in 0..<lst[i].count {
            if lst[i][j] == x {
                result.append((i, j))
            }
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for i in 0..<lst.count {
        for j in 0..<lst[i].count {
            if lst[i][j] == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted(by: { $0.0 < $1.0 })
}
```swift
// You are given a 2 dimensional data, as a nested arrays,
// which is similar to matrix, however, unlike matrices,
// each row may contain a different number of columns.
// Given lst, and integer x, find integers x in the array,
// and return array of tuples, [(x1, y1), (x2, y2) ...] such that
// each tuple is a coordinate - (row, columns), starting with 0.
// Sort coordinates initially by rows in ascending order.
// Also, sort coordinates of the row by columns in descending order.
// Examples:
// getRow(lst: [[1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 1, 6], [1, 2, 3, 4, 5, 1]], x: 1) == [(0, 0), (1, 4), (1, 0), (2, 5), (2, 0)]
// getRow(lst: [] as [[Int]], x: 1) == [] as [(Int, Int)]
// getRow(lst: [[] as [Int], [1], [1, 2, 3]], x: 3) == [(2, 2)]
func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for i in 0..<lst.count {
        for j in 0..<lst[i].count {
            if lst[i][j] == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted(by: { $0.0 < $1.0 })
}
<|file_separator|>
 // XCTAssertTrue failed

func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for i in 0..<lst.count {
        for j in 0..<lst[i].count {
            if lst[i][j] == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted(by: { $0.0 < $1.0 })
}
```swift
// You are given a 2 dimensional data, as a nested arrays,
// which is similar to matrix, however, unlike matrices,
// each row may contain a different number of columns.
// Given lst, and integer x, find integers x in the array,
// and return array of tuples, [(x1, y1), (x2, y2) ...] such that
// each tuple is a coordinate - (row, columns), starting with 0.
// Sort coordinates initially by rows in ascending order.
// Also, sort coordinates of the row by columns in descending order.
// Examples:
// getRow(lst: [[1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 1, 6], [1, 2, 3, 4, 5, 1]], x: 1) == [(0, 0), (1, 4), (1, 0), (2, 5), (2, 0)]
// getRow(lst: [] as [[Int]], x: 1) == [] as [(Int, Int)]
// getRow(lst: [[] as [Int], [1], [1, 2, 3]], x: 3) == [(2, 2)]
func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for i in 0..<lst.count {
        for j in 0..<lst[i].count {
            if lst[i][j] == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted(by: { $0.0 < $1.0 })
}
<|file_separator|>
 // XCTAssertTrue failed

func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for i in 0..<lst.count {
        for j in 0..<lst[i].count {
            if lst[i][j] == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted(by: { $0.0 < $1.0 })
}
```swift
// You are given a 2 dimensional data, as a nested arrays,
// which is similar to matrix, however, unlike matrices,
// each row may contain a different number of columns.
// Given lst, and integer x, find integers x in the array,
// and return array of tuples, [(x1, y1), (x2, y2) ...] such that
// each tuple is a coordinate - (row, columns), starting with 0.
// Sort coordinates initially by rows in ascending order.
// Also, sort coordinates of the row by columns in descending order.
// Examples:
// getRow(lst: [[1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 1, 6], [1, 2, 3, 4, 5, 1]], x: 1) == [(0, 0), (1, 4), (1, 0), (2, 5), (2, 0)]
// getRow(lst: [] as [[Int]], x: 1) == [] as [(Int, Int)]
// getRow(lst: [[] as [Int], [1], [1, 2, 3]], x: 3) == [(2, 2)]
func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for i in 0..<lst.count {
        for j in 0..<lst[i].count {
            if lst[i][j] == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted(by: { $0.0 < $1.0 })
}
<|file_separator|>
 // XCTAssertTrue failed

func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for (row, rowData) in lst.enumerated() {
        for (column, value) in rowData.enumerated() {
            if value == x {
                result.append((row, column))
            }
        }
    }
    return result
}
```swift
// You are given a 2 dimensional data, as a nested arrays,
// which is similar to matrix, however, unlike matrices,
// each row may contain a different number of columns.
// Given lst, and integer x, find integers x in the array,
// and return array of tuples, [(x1, y1), (x2, y2) ...] such that
// each tuple is a coordinate - (row, columns), starting with 0.
// Sort coordinates initially by rows in ascending order.
// Also, sort coordinates of the row by columns in descending order.
// Examples:
// getRow(lst: [[1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 1, 6], [1, 2, 3, 4, 5, 1]], x: 1) == [(0, 0), (1, 4), (1, 0), (2, 5), (2, 0)]
// getRow(lst: [] as [[Int]], x: 1) == [] as [(Int, Int)]
// getRow(lst: [[] as [Int], [1], [1, 2, 3]], x: 3) == [(2, 2)]
func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for (row, rowData) in lst.enumerated() {
        for (column, value) in rowData.enumerated() {
            if value == x {
                result.append((row, column))
            }
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for (i, row) in lst.enumerated() {
        for (j, value) in row.enumerated() {
            if value == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted { (a, b) -> Bool in
        if a.0 == b.0 {
            return a.1 > b.1
        }
        return a.0 < b.0
    }
}
```swift
// You are given a 2 dimensional data, as a nested arrays,
// which is similar to matrix, however, unlike matrices,
// each row may contain a different number of columns.
// Given lst, and integer x, find integers x in the array,
// and return array of tuples, [(x1, y1), (x2, y2) ...] such that
// each tuple is a coordinate - (row, columns), starting with 0.
// Sort coordinates initially by rows in ascending order.
// Also, sort coordinates of the row by columns in descending order.
// Examples:
// getRow(lst: [[1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 1, 6], [1, 2, 3, 4, 5, 1]], x: 1) == [(0, 0), (1, 4), (1, 0), (2, 5), (2, 0)]
// getRow(lst: [] as [[Int]], x: 1) == [] as [(Int, Int)]
// getRow(lst: [[] as [Int], [1], [1, 2, 3]], x: 3) == [(2, 2)]
func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for (i, row) in lst.enumerated() {
        for (j, value) in row.enumerated() {
            if value == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted { (a, b) -> Bool in
        if a.0 == b.0 {
            return a.1 > b.1
        }
        return a.0 < b.0
    }
}
<|file_separator|>

func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for (i, row) in lst.enumerated() {
        for (j, value) in row.enumerated() {
            if value == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted { $0.0 < $1.0 }
}
```swift
// You are given a 2 dimensional data, as a nested arrays,
// which is similar to matrix, however, unlike matrices,
// each row may contain a different number of columns.
// Given lst, and integer x, find integers x in the array,
// and return array of tuples, [(x1, y1), (x2, y2) ...] such that
// each tuple is a coordinate - (row, columns), starting with 0.
// Sort coordinates initially by rows in ascending order.
// Also, sort coordinates of the row by columns in descending order.
// Examples:
// getRow(lst: [[1, 2, 3, 4, 5, 6], [1, 2, 3, 4, 1, 6], [1, 2, 3, 4, 5, 1]], x: 1) == [(0, 0), (1, 4), (1, 0), (2, 5), (2, 0)]
// getRow(lst: [] as [[Int]], x: 1) == [] as [(Int, Int)]
// getRow(lst: [[] as [Int], [1], [1, 2, 3]], x: 3) == [(2, 2)]
func getRow(lst: [[Int]], x: Int) -> [(Int, Int)] {
    var result = [(Int, Int)]()
    for (i, row) in lst.enumerated() {
        for (j, value) in row.enumerated() {
            if value == x {
                result.append((i, j))
            }
        }
    }
    return result.sorted { $0.0 < $1.0 }
}
<|file_separator|>
 // XCTAssertTrue failed

func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var odd = false
    for i in 0..<array.count {
        sum += array[i]
    }
    if sum % 2 == 0 {
        odd = true
    }
    if odd {
        array.sort(by: { $0 > $1 })
    } else {
        array.sort(by: { $0 < $1 })
    }
    return array
}
```swift
// Given an array of non-negative integers, return a coswift of the given array after sorting,
// you will sort the given array in ascending order if the sum( first index value, last index value) is odd,
// or sort it in descending order if the sum( first index value, last index value) is even.
// Note:
// * don't change the given array.
// Examples:
// sortArray(array: [] as [Int]) == [] as [Int]
// sortArray(array: [5]) == [5]
// sortArray(array: [2, 4, 3, 0, 1, 5]) == [0, 1, 2, 3, 4, 5]
// sortArray(array: [2, 4, 3, 0, 1, 5, 6]) == [6, 5, 4, 3, 2, 1, 0]
func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var odd = false
    for i in 0..<array.count {
        sum += array[i]
    }
    if sum % 2 == 0 {
        odd = true
    }
    if odd {
        array.sort(by: { $0 > $1 })
    } else {
        array.sort(by: { $0 < $1 })
    }
    return array
}
<|file_separator|>
 // XCTAssertTrue failed

func sortArray(array: [Int]) -> [Int] {
    let sum = array.reduce(0, { $0 + $1 })
    if sum % 2 == 0 {
        return array.sorted(by: { $0 > $1 })
    } else {
        return array.sorted(by: { $0 < $1 })
    }
}
```swift
// Given an array of non-negative integers, return a coswift of the given array after sorting,
// you will sort the given array in ascending order if the sum( first index value, last index value) is odd,
// or sort it in descending order if the sum( first index value, last index value) is even.
// Note:
// * don't change the given array.
// Examples:
// sortArray(array: [] as [Int]) == [] as [Int]
// sortArray(array: [5]) == [5]
// sortArray(array: [2, 4, 3, 0, 1, 5]) == [0, 1, 2, 3, 4, 5]
// sortArray(array: [2, 4, 3, 0, 1, 5, 6]) == [6, 5, 4, 3, 2, 1, 0]
func sortArray(array: [Int]) -> [Int] {
    let sum = array.reduce(0, { $0 + $1 })
    if sum % 2 == 0 {
        return array.sorted(by: { $0 > $1 })
    } else {
        return array.sorted(by: { $0 < $1 })
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var index = 0
    var newArray = [Int]()
    while index < array.count {
        sum = array[index] + array[array.count - 1 - index]
        if sum % 2 == 0 {
            newArray.append(array[index])
            newArray.append(array[array.count - 1 - index])
        } else {
            newArray.append(array[array.count - 1 - index])
            newArray.append(array[index])
        }
        index += 1
    }
    return newArray
}
```swift
// Given an array of non-negative integers, return a coswift of the given array after sorting,
// you will sort the given array in ascending order if the sum( first index value, last index value) is odd,
// or sort it in descending order if the sum( first index value, last index value) is even.
// Note:
// * don't change the given array.
// Examples:
// sortArray(array: [] as [Int]) == [] as [Int]
// sortArray(array: [5]) == [5]
// sortArray(array: [2, 4, 3, 0, 1, 5]) == [0, 1, 2, 3, 4, 5]
// sortArray(array: [2, 4, 3, 0, 1, 5, 6]) == [6, 5, 4, 3, 2, 1, 0]
func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var index = 0
    var newArray = [Int]()
    while index < array.count {
        sum = array[index] + array[array.count - 1 - index]
        if sum % 2 == 0 {
            newArray.append(array[index])
            newArray.append(array[array.count - 1 - index])
        } else {
            newArray.append(array[array.count - 1 - index])
            newArray.append(array[index])
        }
        index += 1
    }
    return newArray
}
<|file_separator|>
var array = array // variable 'array' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

```swift
// Given an array of non-negative integers, return a coswift of the given array after sorting,
// you will sort the given array in ascending order if the sum( first index value, last index value) is odd,
// or sort it in descending order if the sum( first index value, last index value) is even.
// Note:
// * don't change the given array.
// Examples:
// sortArray(array: [] as [Int]) == [] as [Int]
// sortArray(array: [5]) == [5]
// sortArray(array: [2, 4, 3, 0, 1, 5]) == [0, 1, 2, 3, 4, 5]
// sortArray(array: [2, 4, 3, 0, 1, 5, 6]) == [6, 5, 4, 3, 2, 1, 0]
func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var temp = 0
    var temp2 = 0
    var temp3 = 0
    var temp4 = 0
    var temp5 = 0
    var temp6 = 0
    var temp7 = 0
    var temp8 = 0
    var temp9 = 0
    var temp10 = 0
    var temp11 = 0
    var temp12 = 0
    var temp13 = 0
    var temp14 = 0
    var temp15 = 0
    var temp16 = 0
    var temp17 = 0
    var temp18 = 0
    var temp19 = 0
    var temp20 = 0
    var temp21 = 0
    var temp22 = 0
    var temp23 = 0
    var temp24 = 0
    var temp25 = 0
    var temp26 = 0
    var temp27 = 0
    var temp28 = 0
    var temp29 = 0
    var temp30 = 0
    var temp31 = 0
    var temp32 = 0
    var temp33 = 0
    var temp34 = 0
    var temp35 = 0
    var temp36 = 0
    var temp37 = 0
    var temp38 = 0
    var temp39 = 0
    var temp40 = 0
    var temp41 = 0
    var temp42 = 0
    var temp43 = 0
    var temp44 = 0
    var temp45 = 0
    var temp46 = 0
    var temp47 = 0
    var temp48 = 0
    var temp49 = 0
    var temp50 = 0
    var temp51 = 0
    var temp52 = 0
    var temp53 = 0
    var temp54 = 0
    var temp55 = 0
    var temp56 = 0
    var temp57 = 0
    var temp58 = 0
    var temp59 = 0
    var temp60 = 0
    var temp61 = 0
    var temp62 = 0
    var temp63 = 0
    var temp64 = 0
    var temp65 = 0
    var temp66 = 0
    var temp67 = 0
    var temp68 = 0
    var temp69 = 0
    var temp70 = 0
    var temp71 = 0
    var temp72 = 0
    var temp73 = 0
    var temp74 = 0
    var temp75 = 0
    var temp76 = 0
    var temp77 = 0
    var temp78 = 0
    var temp79 = 0
    var temp80 = 0
    var temp81 = 0
    var temp82 = 0
    var temp83 = 0
    var temp84 = 0
    var temp85 = 0
    var temp86 = 0
    var temp87 = 0
    var temp88 = 0
    var temp89 = 0
    var temp90 = 0
    var temp91 = 0
    var temp92 = 0
    var temp93 = 0
    var temp94 = 0
    var temp95 = 0
    var temp96 = 0
    var temp97 = 0
    var temp98 = 0
    var temp99 = 0
    var temp100 = 0
    var temp101 = 0
    var temp102 = 0
    var temp103 = 0
    var temp104 = 0
    var temp105 = 0
    var temp106 = 0
    var temp107 = 0
    var temp108 = 0
    var temp109 = 0
    var temp110 = 0
    var temp111 = 0
    var temp112 = 0
XCTAssertTrue(sortArray(array: [] as [Int]) == [] as [Int]) // cannot find 'sortArray' in scope
XCTAssertTrue(sortArray(array: [5]) == [5]) // cannot find 'sortArray' in scope
XCTAssertTrue(sortArray(array: [2, 4, 3, 0, 1, 5]) == [0, 1, 2, 3, 4, 5]) // cannot find 'sortArray' in scope
XCTAssertTrue(sortArray(array: [2, 4, 3, 0, 1, 5, 6]) == [6, 5, 4, 3, 2, 1, 0]) // cannot find 'sortArray' in scope
XCTAssertTrue(sortArray(array: [2, 1]) == [1, 2]) // cannot find 'sortArray' in scope
XCTAssertTrue(sortArray(array: [15, 42, 87, 32, 11, 0]) == [0, 11, 15, 32, 42, 87]) // cannot find 'sortArray' in scope
XCTAssertTrue(sortArray(array: [21, 14, 23, 11]) == [23, 21, 14, 11]) // cannot find 'sortArray' in scope

func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var temp = 0
    for i in 0..<array.count {
        for j in 0..<array.count {
            sum = array[i] + array[j]
            if sum % 2 == 0 {
                temp = array[i]
                array[i] = array[j]
                array[j] = temp
            }
        }
    }
    return array
}
```swift
// Given an array of non-negative integers, return a coswift of the given array after sorting,
// you will sort the given array in ascending order if the sum( first index value, last index value) is odd,
// or sort it in descending order if the sum( first index value, last index value) is even.
// Note:
// * don't change the given array.
// Examples:
// sortArray(array: [] as [Int]) == [] as [Int]
// sortArray(array: [5]) == [5]
// sortArray(array: [2, 4, 3, 0, 1, 5]) == [0, 1, 2, 3, 4, 5]
// sortArray(array: [2, 4, 3, 0, 1, 5, 6]) == [6, 5, 4, 3, 2, 1, 0]
func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var temp = 0
    for i in 0..<array.count {
        for j in 0..<array.count {
            sum = array[i] + array[j]
            if sum % 2 == 0 {
                temp = array[i]
                array[i] = array[j]
                array[j] = temp
            }
        }
    }
    return array
}
<|file_separator|>
 // XCTAssertTrue failed

func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var index = 0
    var result = [Int]()
    
    while index < array.count {
        sum = array[index] + array[array.count - index - 1]
        if sum % 2 == 0 {
            result.append(array[index])
            result.append(array[array.count - index - 1])
        } else {
            result.append(array[array.count - index - 1])
            result.append(array[index])
        }
        index += 1
    }
    return result
}
```swift
// Given an array of non-negative integers, return a coswift of the given array after sorting,
// you will sort the given array in ascending order if the sum( first index value, last index value) is odd,
// or sort it in descending order if the sum( first index value, last index value) is even.
// Note:
// * don't change the given array.
// Examples:
// sortArray(array: [] as [Int]) == [] as [Int]
// sortArray(array: [5]) == [5]
// sortArray(array: [2, 4, 3, 0, 1, 5]) == [0, 1, 2, 3, 4, 5]
// sortArray(array: [2, 4, 3, 0, 1, 5, 6]) == [6, 5, 4, 3, 2, 1, 0]
func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var index = 0
    var result = [Int]()
    
    while index < array.count {
        sum = array[index] + array[array.count - index - 1]
        if sum % 2 == 0 {
            result.append(array[index])
            result.append(array[array.count - index - 1])
        } else {
            result.append(array[array.count - index - 1])
            result.append(array[index])
        }
        index += 1
    }
    return result
}
<|file_separator|>
var array = array // variable 'array' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    for i in 0..<array.count {
        sum += array[i]
    }
    if sum % 2 == 0 {
        array.sort(by: >)
    } else {
        array.sort(by: <)
    }
    return array
}
```swift
// Given an array of non-negative integers, return a coswift of the given array after sorting,
// you will sort the given array in ascending order if the sum( first index value, last index value) is odd,
// or sort it in descending order if the sum( first index value, last index value) is even.
// Note:
// * don't change the given array.
// Examples:
// sortArray(array: [] as [Int]) == [] as [Int]
// sortArray(array: [5]) == [5]
// sortArray(array: [2, 4, 3, 0, 1, 5]) == [0, 1, 2, 3, 4, 5]
// sortArray(array: [2, 4, 3, 0, 1, 5, 6]) == [6, 5, 4, 3, 2, 1, 0]
func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    for i in 0..<array.count {
        sum += array[i]
    }
    if sum % 2 == 0 {
        array.sort(by: >)
    } else {
        array.sort(by: <)
    }
    return array
}
<|file_separator|>
 // XCTAssertTrue failed

func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var sum2 = 0
    var array2 = [Int]()
    for i in 0..<array.count {
        sum += array[i]
    }
    if sum % 2 == 0 {
        for i in 0..<array.count {
            sum2 += array[i]
            if sum2 == sum / 2 {
                array2 = array[0..<i]
                array2.sort()
                array2.append(contentsOf: array[i..<array.count])
                array2.sort(by: >)
                return array2
            }
        }
    } else {
        for i in 0..<array.count {
            sum2 += array[i]
            if sum2 == sum / 2 + 1 {
                array2 = array[0..<i]
                array2.sort()
                array2.append(contentsOf: array[i..<array.count])
                array2.sort(by: >)
                return array2
            }
        }
    }
    return array
}
```swift
// Given an array of non-negative integers, return a coswift of the given array after sorting,
// you will sort the given array in ascending order if the sum( first index value, last index value) is odd,
// or sort it in descending order if the sum( first index value, last index value) is even.
// Note:
// * don't change the given array.
// Examples:
// sortArray(array: [] as [Int]) == [] as [Int]
// sortArray(array: [5]) == [5]
// sortArray(array: [2, 4, 3, 0, 1, 5]) == [0, 1, 2, 3, 4, 5]
// sortArray(array: [2, 4, 3, 0, 1, 5, 6]) == [6, 5, 4, 3, 2, 1, 0]
func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var sum2 = 0
    var array2 = [Int]()
    for i in 0..<array.count {
        sum += array[i]
    }
    if sum % 2 == 0 {
        for i in 0..<array.count {
            sum2 += array[i]
            if sum2 == sum / 2 {
                array2 = array[0..<i]
                array2.sort()
                array2.append(contentsOf: array[i..<array.count])
                array2.sort(by: >)
                return array2
            }
        }
    } else {
        for i in 0..<array.count {
            sum2 += array[i]
            if sum2 == sum / 2 + 1 {
                array2 = array[0..<i]
                array2.sort()
                array2.append(contentsOf: array[i..<array.count])
                array2.sort(by: >)
                return array2
            }
        }
    }
    return array
}
<|file_separator|>
array2 = array[0..<i] // cannot assign value of type 'ArraySlice<Int>' to type '[Int]'
array2 = array[0..<i] // cannot assign value of type 'ArraySlice<Int>' to type '[Int]'

func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var index = 0
    var result = [Int]()
    while index < array.count {
        sum = array[index] + array[array.count - 1 - index]
        if sum % 2 == 0 {
            result.append(array[index])
            result.append(array[array.count - 1 - index])
        } else {
            result.append(array[array.count - 1 - index])
            result.append(array[index])
        }
        index += 1
    }
    return result
}
```swift
// Given an array of non-negative integers, return a coswift of the given array after sorting,
// you will sort the given array in ascending order if the sum( first index value, last index value) is odd,
// or sort it in descending order if the sum( first index value, last index value) is even.
// Note:
// * don't change the given array.
// Examples:
// sortArray(array: [] as [Int]) == [] as [Int]
// sortArray(array: [5]) == [5]
// sortArray(array: [2, 4, 3, 0, 1, 5]) == [0, 1, 2, 3, 4, 5]
// sortArray(array: [2, 4, 3, 0, 1, 5, 6]) == [6, 5, 4, 3, 2, 1, 0]
func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var index = 0
    var result = [Int]()
    while index < array.count {
        sum = array[index] + array[array.count - 1 - index]
        if sum % 2 == 0 {
            result.append(array[index])
            result.append(array[array.count - 1 - index])
        } else {
            result.append(array[array.count - 1 - index])
            result.append(array[index])
        }
        index += 1
    }
    return result
}
<|file_separator|>
var array = array // variable 'array' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var result = [Int]()
    for i in 0..<array.count {
        sum = array[i] + array[array.count - i - 1]
        if sum % 2 == 0 {
            result.append(array[i])
            result.append(array[array.count - i - 1])
        } else {
            result.append(array[array.count - i - 1])
            result.append(array[i])
        }
    }
    return result
}
```swift
// Given an array of non-negative integers, return a coswift of the given array after sorting,
// you will sort the given array in ascending order if the sum( first index value, last index value) is odd,
// or sort it in descending order if the sum( first index value, last index value) is even.
// Note:
// * don't change the given array.
// Examples:
// sortArray(array: [] as [Int]) == [] as [Int]
// sortArray(array: [5]) == [5]
// sortArray(array: [2, 4, 3, 0, 1, 5]) == [0, 1, 2, 3, 4, 5]
// sortArray(array: [2, 4, 3, 0, 1, 5, 6]) == [6, 5, 4, 3, 2, 1, 0]
func sortArray(array: [Int]) -> [Int] {
    var array = array
    var sum = 0
    var result = [Int]()
    for i in 0..<array.count {
        sum = array[i] + array[array.count - i - 1]
        if sum % 2 == 0 {
            result.append(array[i])
            result.append(array[array.count - i - 1])
        } else {
            result.append(array[array.count - i - 1])
            result.append(array[i])
        }
    }
    return result
}
<|file_separator|>
var array = array // variable 'array' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let charCode = char.asciiValue!
            let newCharCode = charCode + 2
            let newChar = Character(UnicodeScalar(newCharCode)!)
            result += String(newChar)
        }
    }
    return result
}
```swift
// Create a function encrypt that takes a string as an argument and
// returns a string encrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift down by two multiplied to two places.
// For example:
// encrypt(s: "hi") == "lm"
// encrypt(s: "asdfghjkl") == "ewhjklnop"
// encrypt(s: "gf") == "kj"
// encrypt(s: "et") == "ix"
func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let charCode = char.asciiValue!
            let newCharCode = charCode + 2
            let newChar = Character(UnicodeScalar(newCharCode)!)
            result += String(newChar)
        }
    }
    return result
}
<|file_separator|>
let newChar = Character(UnicodeScalar(newCharCode)!) // cannot force unwrap value of non-optional type 'UnicodeScalar' (aka 'Unicode.Scalar')

func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let charCode = char.asciiValue!
            let newCharCode = charCode + 2
            let newChar = String(UnicodeScalar(newCharCode))
            result += newChar
        }
    }
    return result
}
```swift
// Create a function encrypt that takes a string as an argument and
// returns a string encrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift down by two multiplied to two places.
// For example:
// encrypt(s: "hi") == "lm"
// encrypt(s: "asdfghjkl") == "ewhjklnop"
// encrypt(s: "gf") == "kj"
// encrypt(s: "et") == "ix"
func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let charCode = char.asciiValue!
            let newCharCode = charCode + 2
            let newChar = String(UnicodeScalar(newCharCode))
            result += newChar
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func encrypt(s: String) -> String {
    var result = ""
    for c in s {
        if c == " " {
            result += " "
        } else {
            let ascii = Int(c.asciiValue!)
            let newAscii = ascii + 2
            let newChar = String(Character(UnicodeScalar(newAscii)!))
            result += newChar
        }
    }
    return result
}

func decrypt(s: String) -> String {
    var result = ""
    for c in s {
        if c == " " {
            result += " "
        } else {
            let ascii = Int(c.asciiValue!)
            let newAscii = ascii - 2
            let newChar = String(Character(UnicodeScalar(newAscii)!))
            result += newChar
        }
    }
    return result
}

func sort(s: String) -> String {
    var result = ""
    var letters = [String]()
    for c in s {
        if c == " " {
            result += " "
        } else {
            letters.append(String(c))
        }
    }
    letters.sort()
    for l in letters {
        result += l
    }
    return result
}

func reverseSort(s: String) -> String {
    var result = ""
    var letters = [String]()
    for c in s {
        if c == " " {
            result += " "
        } else {
            letters.append(String(c))
        }
    }
    letters.sort(by: >)
    for l in letters {
        result += l
    }
    return result
}

func capitalize(s: String) -> String {
    var result = ""
    var letters = [String]()
    for c in s {
        if c == " " {
            result += " "
        } else {
            letters.append(String(c))
        }
    }
    letters.sort()
    for l in letters {
        result += l
    }
    result = result.capitalized
    return result
}
```swift
// Create a function encrypt that takes a string as an argument and
// returns a string encrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift down by two multiplied to two places.
// For example:
// encrypt(s: "hi") == "lm"
// encrypt(s: "asdfghjkl") == "ewhjklnop"
// encrypt(s: "gf") == "kj"
// encrypt(s: "et") == "ix"
func encrypt(s: String) -> String {
    var result = ""
    for c in s {
        if c == " " {
            result += " "
        } else {
            let ascii = Int(c.asciiValue!)
            let newAscii = ascii + 2
            let newChar = String(Character(UnicodeScalar(newAscii)!))
            result += newChar
        }
    }
    return result
}

// Create a function decrypt that takes a string as an argument and
// returns a string decrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift up by two multiplied to two places.
// For example:
// decrypt(s: "lm") == "hi"
// decrypt(s: "ewhjklnop") == "asdfghjkl"
// decrypt(s: "kj") == "gf"
// decrypt(s: "ix") == "et"
func decrypt(s: String) -> String {
    var result = ""
    for c in s {
        if c == " " {
            result += " "
        } else {
            let ascii = Int(c.asciiValue!)
            let newAscii = ascii - 2
            let newChar = String(Character(UnicodeScalar(newAscii)!))
            result += newChar
        }
    }
    return result
}

// Create a function that takes a string as an argument and returns
// a string with the letters in alphabetical order.
// For example:
// sort(s: "hi") == "eh"
// sort(s: "asdfghjkl") == "abcdefghijkl"
// sort(s: "gf") == "ef"
// sort(s: "et") == "ix"
func sort(s: String) -> String {
    var result = ""
    var letters = [String]()
    for c in s {
        if c == " " {
            result += " "
        } else {
            letters.append(String(c))
        }
    }
    letters.sort()
    for l in letters {
        result += l
    }
    return result
}

// Create a function that takes a string as an argument and returns
// a string with the letters in reverse alphabetical order.
// For example:
// reverseSort(s: "hi") == "eh"
// reverseSort(s: "asdfghjkl") == "abcdefghijkl"
// reverseSort(s: "gf") == "ef"
// reverseSort(s: "et") == "ix"
func reverseSort(s: String) -> String {
    var result = ""
    var letters = [String]()
    for c in s {
        if c == " " {
            result += " "
        } else {
            letters.append(String(c))
        }
    }
    letters.sort(by: >)
    for l in letters {
        result += l
    }
    return result
}

// Create a function that takes a string as an argument and returns
// a string with the letters in alphabetical order, but with the
// first letter capitalized.
// For example:
// capitalize(s: "hi") == "Hi"
// capitalize(s: "asdfghjkl") == "Asdfghjkl"
// capitalize(s: "gf") == "Gf"
// capitalize(s: "et") == "Et"
func capitalize(s: String) -> String {
    var result = ""
    var letters = [String]()
    for c in s {
        if c == " " {
            result += " "
        } else {
            letters.append(String(c))
        }
    }
    letters.sort()
    for l in letters {
        result += l
    }
    result = result.capitalized
    return result
}

// Create a function that takes a string as an argument and returns
// a string with the letters in reverse alphabetical order, but with
// the first letter capitalized.
// For example:
// capitalize(s: "hi") == "Hi"
// capitalize(s: "asdfghjkl") == "Asdfghjkl"
// capitalize(s: "gf") == "Gf"
// capitalize(s: "et") == "Et"
func reverseCapitalize(s: String) -> String {
    var result = ""
    var letters = [String]()
    for c in s {
        if c == " " {
            result += " "
        } else {
            letters
 // XCTAssertTrue failed

func encrypt(s: String) -> String {
    var result = ""
    for c in s {
        if c == " " {
            result += " "
        } else {
            result += String(c)
        }
    }
    return result
}
```swift
// Create a function encrypt that takes a string as an argument and
// returns a string encrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift down by two multiplied to two places.
// For example:
// encrypt(s: "hi") == "lm"
// encrypt(s: "asdfghjkl") == "ewhjklnop"
// encrypt(s: "gf") == "kj"
// encrypt(s: "et") == "ix"
func encrypt(s: String) -> String {
    var result = ""
    for c in s {
        if c == " " {
            result += " "
        } else {
            result += String(c)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let ascii = Int(char.asciiValue!)
            if ascii > 96 && ascii < 123 {
                result += String(UnicodeScalar(ascii + 2 * 2)!)
            } else if ascii > 64 && ascii < 91 {
                result += String(UnicodeScalar(ascii + 2 * 2)!)
            } else {
                result += String(UnicodeScalar(ascii)!)
            }
        }
    }
    return result
}
```swift
// Create a function encrypt that takes a string as an argument and
// returns a string encrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift down by two multiplied to two places.
// For example:
// encrypt(s: "hi") == "lm"
// encrypt(s: "asdfghjkl") == "ewhjklnop"
// encrypt(s: "gf") == "kj"
// encrypt(s: "et") == "ix"
func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let ascii = Int(char.asciiValue!)
            if ascii > 96 && ascii < 123 {
                result += String(UnicodeScalar(ascii + 2 * 2)!)
            } else if ascii > 64 && ascii < 91 {
                result += String(UnicodeScalar(ascii + 2 * 2)!)
            } else {
                result += String(UnicodeScalar(ascii)!)
            }
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let ascii = Int(char.asciiValue!)
            let newAscii = ascii + 2
            let newChar = String(Character(UnicodeScalar(newAscii)!))
            result += newChar
        }
    }
    return result
}

func decrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let ascii = Int(char.asciiValue!)
            let newAscii = ascii - 2
            let newChar = String(Character(UnicodeScalar(newAscii)!))
            result += newChar
        }
    }
    return result
}
```swift
// Create a function encrypt that takes a string as an argument and
// returns a string encrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift down by two multiplied to two places.
// For example:
// encrypt(s: "hi") == "lm"
// encrypt(s: "asdfghjkl") == "ewhjklnop"
// encrypt(s: "gf") == "kj"
// encrypt(s: "et") == "ix"
func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let ascii = Int(char.asciiValue!)
            let newAscii = ascii + 2
            let newChar = String(Character(UnicodeScalar(newAscii)!))
            result += newChar
        }
    }
    return result
}

// Create a function decrypt that takes a string as an argument and
// returns a string decrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift up by two multiplied to two places.
// For example:
// decrypt(s: "lm") == "hi"
// decrypt(s: "ewhjklnop") == "asdfghjkl"
// decrypt(s: "kj") == "gf"
// decrypt(s: "ix") == "et"
func decrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let ascii = Int(char.asciiValue!)
            let newAscii = ascii - 2
            let newChar = String(Character(UnicodeScalar(newAscii)!))
            result += newChar
        }
    }
    return result
}<|file_separator|>
 // XCTAssertTrue failed

func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        let charCode = char.asciiValue!
        let newCharCode = charCode + 2
        let newChar = String(UnicodeScalar(newCharCode))
        result += newChar
    }
    return result
}

func decrypt(s: String) -> String {
    var result = ""
    for char in s {
        let charCode = char.asciiValue!
        let newCharCode = charCode - 2
        let newChar = String(UnicodeScalar(newCharCode))
        result += newChar
    }
    return result
}

func removeVowels(s: String) -> String {
    var result = ""
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

func removeConsonants(s: String) -> String {
    var result = ""
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

func removeVowelsAndConsonants(s: String) -> String {
    var result = ""
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// Create a function encrypt that takes a string as an argument and
// returns a string encrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift down by two multiplied to two places.
// For example:
// encrypt(s: "hi") == "lm"
// encrypt(s: "asdfghjkl") == "ewhjklnop"
// encrypt(s: "gf") == "kj"
// encrypt(s: "et") == "ix"
func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        let charCode = char.asciiValue!
        let newCharCode = charCode + 2
        let newChar = String(UnicodeScalar(newCharCode))
        result += newChar
    }
    return result
}

// Create a function decrypt that takes a string as an argument and
// returns a string decrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift up by two multiplied to two places.
// For example:
// decrypt(s: "lm") == "hi"
// decrypt(s: "ewhjklnop") == "asdfghjkl"
// decrypt(s: "kj") == "gf"
// decrypt(s: "ix") == "et"
func decrypt(s: String) -> String {
    var result = ""
    for char in s {
        let charCode = char.asciiValue!
        let newCharCode = charCode - 2
        let newChar = String(UnicodeScalar(newCharCode))
        result += newChar
    }
    return result
}

// Create a function that takes a string as an argument and returns a
// string with all the vowels removed.
// For example:
// removeVowels(s: "hi") == "h"
// removeVowels(s: "asdfghjkl") == "asdfghjkl"
// removeVowels(s: "gf") == "gf"
// removeVowels(s: "et") == "et"
func removeVowels(s: String) -> String {
    var result = ""
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// Create a function that takes a string as an argument and returns a
// string with all the consonants removed.
// For example:
// removeConsonants(s: "hi") == "i"
// removeConsonants(s: "asdfghjkl") == "sdfghjkl"
// removeConsonants(s: "gf") == "gf"
// removeConsonants(s: "et") == "et"
func removeConsonants(s: String) -> String {
    var result = ""
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// Create a function that takes a string as an argument and returns a
// string with all the vowels and consonants removed.
// For example:
// removeVowelsAndConsonants(s: "hi") == "i"
// removeVowelsAndConsonants(s: "asdfghjkl") == "sdfghjkl"
// removeVowelsAndConsonants(s: "gf") == "gf"
// removeVowelsAndConsonants(s: "et") == "et"
func removeVowelsAndConsonants(s: String) -> String {
    var result = ""
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    for char in s {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            continue
        } else {
            result += String(char)
        }
    }
    return result
}

// Create a function that takes a string as an argument and returns a
// string with all the vowels and consonants removed.
// For example:
// removeVowelsAndConsonants(s: "hi") == "i"
// removeVowelsAndConsonants(s: "asdfghjkl") == "sdfghjkl"
// removeVowelsAndConsonants(s: "gf") == "gf"
// removeVowelsAndConsonants(s: "et") == "et"
func removeVowelsAndConsonants(s: String) -> String {
    var result = ""
    for char in s
 // XCTAssertTrue failed

func encrypt(s: String) -> String {
    let alphabet = "abcdefghijklmnopqrstuvwxyz"
    var encrypted = ""
    for char in s {
        let index = alphabet.index(alphabet.startIndex, offsetBy: alphabet.firstIndex(of: char)!.utf16Offset(in: alphabet) + 2)
        encrypted += String(alphabet[index])
    }
    return encrypted
}
```swift
// Create a function encrypt that takes a string as an argument and
// returns a string encrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift down by two multiplied to two places.
// For example:
// encrypt(s: "hi") == "lm"
// encrypt(s: "asdfghjkl") == "ewhjklnop"
// encrypt(s: "gf") == "kj"
// encrypt(s: "et") == "ix"
func encrypt(s: String) -> String {
    let alphabet = "abcdefghijklmnopqrstuvwxyz"
    var encrypted = ""
    for char in s {
        let index = alphabet.index(alphabet.startIndex, offsetBy: alphabet.firstIndex(of: char)!.utf16Offset(in: alphabet) + 2)
        encrypted += String(alphabet[index])
    }
    return encrypted
}
<|file_separator|>
 // XCTAssertTrue failed

func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let charCode = char.asciiValue!
            let newCharCode = charCode + 2
            let newChar = String(UnicodeScalar(newCharCode))
            result += newChar
        }
    }
    return result
}
```swift
// Create a function encrypt that takes a string as an argument and
// returns a string encrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift down by two multiplied to two places.
// For example:
// encrypt(s: "hi") == "lm"
// encrypt(s: "asdfghjkl") == "ewhjklnop"
// encrypt(s: "gf") == "kj"
// encrypt(s: "et") == "ix"
func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let charCode = char.asciiValue!
            let newCharCode = charCode + 2
            let newChar = String(UnicodeScalar(newCharCode))
            result += newChar
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let ascii = Int(char.asciiValue!)
            let newAscii = ascii + 2
            let newChar = String(Character(UnicodeScalar(newAscii)!))
            result += newChar
        }
    }
    return result
}
```swift
// Create a function encrypt that takes a string as an argument and
// returns a string encrypted with the alphabet being rotated. 
// The alphabet should be rotated in a manner such that the letters 
// shift down by two multiplied to two places.
// For example:
// encrypt(s: "hi") == "lm"
// encrypt(s: "asdfghjkl") == "ewhjklnop"
// encrypt(s: "gf") == "kj"
// encrypt(s: "et") == "ix"
func encrypt(s: String) -> String {
    var result = ""
    for char in s {
        if char == " " {
            result += " "
        } else {
            let ascii = Int(char.asciiValue!)
            let newAscii = ascii + 2
            let newChar = String(Character(UnicodeScalar(newAscii)!))
            result += newChar
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func nextSmallest(lst: [Int]) -> Int? {
    guard lst.count > 1 else { return nil }
    let sorted = lst.sorted()
    return sorted.firstIndex(of: sorted[1])
}

func count_a(str: String) -> Int {
    return str.filter { $0 == "a" }.count
}

func count_b(str: String) -> Int {
    return str.filter { $0 == "b" }.count
}

func count_c(str: String) -> Int {
    return str.filter { $0 == "c" }.count
}

func count_d(str: String) -> Int {
    return str.filter { $0 == "d" }.count
}

func count_e(str: String) -> Int {
    return str.filter { $0 == "e" }.count
}
```swift
// You are given an array of integers.
// Write a function next_smallest() that returns the 2nd smallest element of the array.
// Return nil if there is no such element.
// nextSmallest(lst: [1, 2, 3, 4, 5]) == 2
// nextSmallest(lst: [5, 1, 4, 3, 2]) == 2
// nextSmallest(lst: [] as [Int]) == nil
// nextSmallest(lst: [1, 1]) == nil
func nextSmallest(lst: [Int]) -> Int? {
    guard lst.count > 1 else { return nil }
    let sorted = lst.sorted()
    return sorted.firstIndex(of: sorted[1])
}

// You are given a string of characters.
// Write a function that returns the number of times that the character 'a' appears in the string.
// count_a("a") == 1
// count_a("aa") == 2
// count_a("aaa") == 3
// count_a("aaaa") == 4
// count_a("aaaaa") == 5
// count_a("aaaaaa") == 6
// count_a("aaaaaaa") == 7
// count_a("aaaaaaaa") == 8
// count_a("aaaaaaaaa") == 9
// count_a("aaaaaaaaaa") == 10
func count_a(str: String) -> Int {
    return str.filter { $0 == "a" }.count
}

// You are given a string of characters.
// Write a function that returns the number of times that the character 'b' appears in the string.
// count_b("b") == 1
// count_b("bb") == 2
// count_b("bbb") == 3
// count_b("bbbb") == 4
// count_b("bbbbb") == 5
// count_b("bbbbbb") == 6
// count_b("bbbbbbb") == 7
// count_b("bbbbbbbb") == 8
// count_b("bbbbbbbbb") == 9
// count_b("bbbbbbbbbb") == 10
func count_b(str: String) -> Int {
    return str.filter { $0 == "b" }.count
}

// You are given a string of characters.
// Write a function that returns the number of times that the character 'c' appears in the string.
// count_c("c") == 1
// count_c("cc") == 2
// count_c("ccc") == 3
// count_c("cccc") == 4
// count_c("ccccc") == 5
// count_c("cccccc") == 6
// count_c("ccccccc") == 7
// count_c("cccccccc") == 8
// count_c("ccccccccc") == 9
// count_c("cccccccccc") == 10
func count_c(str: String) -> Int {
    return str.filter { $0 == "c" }.count
}

// You are given a string of characters.
// Write a function that returns the number of times that the character 'd' appears in the string.
// count_d("d") == 1
// count_d("dd") == 2
// count_d("ddd") == 3
// count_d("dddd") == 4
// count_d("dddddd") == 5
// count_d("ddddddd") == 6
// count_d("dddddddd") == 7
// count_d("ddddddddd") == 8
// count_d("dddddddddd") == 9
// count_d("ddddddddddd") == 10
func count_d(str: String) -> Int {
    return str.filter { $0 == "d" }.count
}

// You are given a string of characters.
// Write a function that returns the number of times that the character 'e' appears in the string.
// count_e("e") == 1
// count_e("ee") == 2
// count_e("eee") == 3
// count_e("eeee") == 4
// count_e("eeeeeee") == 5
// count_e("eeeeeeee") == 6
// count_e("eeeeeeeeeee") == 7
// count_e("eeeeeeeeeeee") == 8
// count_e("eeeeeeeeeeeeee") == 9
// count_e("eeeeeeeeeeeeeee") == 10
func count_e(str: String) -> Int {
    return str.filter { $0 == "e" }.count
}

// You are given a string of characters.
// Write a function that returns the number of times that the character 'f' appears in the string.
// count_f("f") == 1
// count_f("ff") == 2
// count_f("fff") == 3
// count_f("ffff") == 4
// count_f("fffff") == 5
// count_
 // XCTAssertTrue failed

func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    
    let sorted = lst.sorted()
    
    for i in 1..<sorted.count {
        if sorted[i] != sorted[i-1] {
            return sorted[i]
        }
    }
    
    return nil
}
```swift
// You are given an array of integers.
// Write a function next_smallest() that returns the 2nd smallest element of the array.
// Return nil if there is no such element.
// nextSmallest(lst: [1, 2, 3, 4, 5]) == 2
// nextSmallest(lst: [5, 1, 4, 3, 2]) == 2
// nextSmallest(lst: [] as [Int]) == nil
// nextSmallest(lst: [1, 1]) == nil
func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    
    let sorted = lst.sorted()
    
    for i in 1..<sorted.count {
        if sorted[i] != sorted[i-1] {
            return sorted[i]
        }
    }
    
    return nil
}
<|file_separator|>

func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    let sorted = lst.sorted()
    let smallest = sorted[0]
    let secondSmallest = sorted[1]
    if smallest == secondSmallest {
        return nil
    }
    return secondSmallest
}
```swift
// You are given an array of integers.
// Write a function next_smallest() that returns the 2nd smallest element of the array.
// Return nil if there is no such element.
// nextSmallest(lst: [1, 2, 3, 4, 5]) == 2
// nextSmallest(lst: [5, 1, 4, 3, 2]) == 2
// nextSmallest(lst: [] as [Int]) == nil
// nextSmallest(lst: [1, 1]) == nil
func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    let sorted = lst.sorted()
    let smallest = sorted[0]
    let secondSmallest = sorted[1]
    if smallest == secondSmallest {
        return nil
    }
    return secondSmallest
}
<|file_separator|>

func nextSmallest(lst: [Int]) -> Int? {
  if lst.count < 2 {
    return nil
  }
  var sorted = lst.sorted()
  for i in 0..<sorted.count {
    if sorted[i] != sorted[i+1] {
      return sorted[i+1]
    }
  }
  return nil
}
```swift
// You are given an array of integers.
// Write a function next_smallest() that returns the 2nd smallest element of the array.
// Return nil if there is no such element.
// nextSmallest(lst: [1, 2, 3, 4, 5]) == 2
// nextSmallest(lst: [5, 1, 4, 3, 2]) == 2
// nextSmallest(lst: [] as [Int]) == nil
// nextSmallest(lst: [1, 1]) == nil
func nextSmallest(lst: [Int]) -> Int? {
  if lst.count < 2 {
    return nil
  }
  var sorted = lst.sorted()
  for i in 0..<sorted.count {
    if sorted[i] != sorted[i+1] {
      return sorted[i+1]
    }
  }
  return nil
}
<|file_separator|>
var sorted = lst.sorted() // variable 'sorted' was never mutated; consider changing to 'let' constant
 // Fatal error: Index out of range

func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    
    let sorted = lst.sorted()
    
    for i in 0..<sorted.count {
        if sorted[i] != sorted[i + 1] {
            return sorted[i + 1]
        }
    }
    
    return nil
}
```swift
// You are given an array of integers.
// Write a function next_smallest() that returns the 2nd smallest element of the array.
// Return nil if there is no such element.
// nextSmallest(lst: [1, 2, 3, 4, 5]) == 2
// nextSmallest(lst: [5, 1, 4, 3, 2]) == 2
// nextSmallest(lst: [] as [Int]) == nil
// nextSmallest(lst: [1, 1]) == nil
func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    
    let sorted = lst.sorted()
    
    for i in 0..<sorted.count {
        if sorted[i] != sorted[i + 1] {
            return sorted[i + 1]
        }
    }
    
    return nil
}
<|file_separator|>
 // Fatal error: Index out of range

func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    let sorted = lst.sorted()
    let smallest = sorted.first!
    let secondSmallest = sorted[1]
    return secondSmallest
}
```swift
// You are given an array of integers.
// Write a function next_smallest() that returns the 2nd smallest element of the array.
// Return nil if there is no such element.
// nextSmallest(lst: [1, 2, 3, 4, 5]) == 2
// nextSmallest(lst: [5, 1, 4, 3, 2]) == 2
// nextSmallest(lst: [] as [Int]) == nil
// nextSmallest(lst: [1, 1]) == nil
func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    let sorted = lst.sorted()
    let smallest = sorted.first!
    let secondSmallest = sorted[1]
    return secondSmallest
}
<|file_separator|>
let smallest = sorted.first! // initialization of immutable value 'smallest' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    let sorted = lst.sorted()
    let secondSmallest = sorted[1]
    return secondSmallest
}
```swift
// You are given an array of integers.
// Write a function next_smallest() that returns the 2nd smallest element of the array.
// Return nil if there is no such element.
// nextSmallest(lst: [1, 2, 3, 4, 5]) == 2
// nextSmallest(lst: [5, 1, 4, 3, 2]) == 2
// nextSmallest(lst: [] as [Int]) == nil
// nextSmallest(lst: [1, 1]) == nil
func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    let sorted = lst.sorted()
    let secondSmallest = sorted[1]
    return secondSmallest
}
<|file_separator|>
 // XCTAssertTrue failed

func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    
    var sorted = lst.sorted()
    var smallest = sorted[0]
    var secondSmallest = sorted[1]
    
    for i in 1..<sorted.count {
        if sorted[i] < smallest {
            secondSmallest = smallest
            smallest = sorted[i]
        } else if sorted[i] < secondSmallest {
            secondSmallest = sorted[i]
        }
    }
    
    return secondSmallest
}
```swift
// You are given an array of integers.
// Write a function next_smallest() that returns the 2nd smallest element of the array.
// Return nil if there is no such element.
// nextSmallest(lst: [1, 2, 3, 4, 5]) == 2
// nextSmallest(lst: [5, 1, 4, 3, 2]) == 2
// nextSmallest(lst: [] as [Int]) == nil
// nextSmallest(lst: [1, 1]) == nil
func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    
    var sorted = lst.sorted()
    var smallest = sorted[0]
    var secondSmallest = sorted[1]
    
    for i in 1..<sorted.count {
        if sorted[i] < smallest {
            secondSmallest = smallest
            smallest = sorted[i]
        } else if sorted[i] < secondSmallest {
            secondSmallest = sorted[i]
        }
    }
    
    return secondSmallest
}
<|file_separator|>
var sorted = lst.sorted() // variable 'sorted' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    let sorted = lst.sorted()
    let smallest = sorted[0]
    let secondSmallest = sorted[1]
    return secondSmallest
}
```swift
// You are given an array of integers.
// Write a function next_smallest() that returns the 2nd smallest element of the array.
// Return nil if there is no such element.
// nextSmallest(lst: [1, 2, 3, 4, 5]) == 2
// nextSmallest(lst: [5, 1, 4, 3, 2]) == 2
// nextSmallest(lst: [] as [Int]) == nil
// nextSmallest(lst: [1, 1]) == nil
func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    let sorted = lst.sorted()
    let smallest = sorted[0]
    let secondSmallest = sorted[1]
    return secondSmallest
}
<|file_separator|>
let smallest = sorted[0] // initialization of immutable value 'smallest' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    let sorted = lst.sorted()
    let smallest = sorted.first!
    let secondSmallest = sorted[1]
    return secondSmallest
}
```swift
// You are given an array of integers.
// Write a function next_smallest() that returns the 2nd smallest element of the array.
// Return nil if there is no such element.
// nextSmallest(lst: [1, 2, 3, 4, 5]) == 2
// nextSmallest(lst: [5, 1, 4, 3, 2]) == 2
// nextSmallest(lst: [] as [Int]) == nil
// nextSmallest(lst: [1, 1]) == nil
func nextSmallest(lst: [Int]) -> Int? {
    if lst.count < 2 {
        return nil
    }
    let sorted = lst.sorted()
    let smallest = sorted.first!
    let secondSmallest = sorted[1]
    return secondSmallest
}
<|file_separator|>
let smallest = sorted.first! // initialization of immutable value 'smallest' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func isBored(S: String) -> Int {
    let sentences = S.split(separator: ".", omittingEmptySubsequences: true)
    let sentences = S.split(separator: "?", omittingEmptySubsequences: true)
    let sentences = S.split(separator: "!", omittingEmptySubsequences: true)
    var count = 0
    for sentence in sentences {
        if sentence.contains("I") {
            count += 1
        }
    }
    return count
}
```swift
// You'll be given a string of words, and your task is to count the number
// of boredoms. A boredom is a sentence that starts with the word "I".
// Sentences are delimited by '.', '?' or '!'.
// For example:
// isBored(S: "Hello world") == 0
// isBored(S: "The sky is blue. The sun is shining. I love this weather") == 1
func isBored(S: String) -> Int {
    let sentences = S.split(separator: ".", omittingEmptySubsequences: true)
    let sentences = S.split(separator: "?", omittingEmptySubsequences: true)
    let sentences = S.split(separator: "!", omittingEmptySubsequences: true)
    var count = 0
    for sentence in sentences {
        if sentence.contains("I") {
            count += 1
        }
    }
    return count
}
<|file_separator|>
let sentences = S.split(separator: "?", omittingEmptySubsequences: true) // invalid redeclaration of 'sentences'
let sentences = S.split(separator: "!", omittingEmptySubsequences: true) // invalid redeclaration of 'sentences'

func isBored(S: String) -> Int {
    let words = S.split(separator: " ")
    var count = 0
    for word in words {
        if word.starts(with: "I") {
            count += 1
        }
    }
    return count
}
```swift
// You'll be given a string of words, and your task is to count the number
// of boredoms. A boredom is a sentence that starts with the word "I".
// Sentences are delimited by '.', '?' or '!'.
// For example:
// isBored(S: "Hello world") == 0
// isBored(S: "The sky is blue. The sun is shining. I love this weather") == 1
func isBored(S: String) -> Int {
    let words = S.split(separator: " ")
    var count = 0
    for word in words {
        if word.starts(with: "I") {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func isBored(S: String) -> Int {
    let words = S.split(separator: " ")
    var count = 0
    for word in words {
        if word.starts(with: "I") {
            count += 1
        }
    }
    return count
}
```swift
// You'll be given a string of words, and your task is to count the number
// of boredoms. A boredom is a sentence that starts with the word "I".
// Sentences are delimited by '.', '?' or '!'.
// For example:
// isBored(S: "Hello world") == 0
// isBored(S: "The sky is blue. The sun is shining. I love this weather") == 1
func isBored(S: String) -> Int {
    let words = S.split(separator: " ")
    var count = 0
    for word in words {
        if word.starts(with: "I") {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func isBored(S: String) -> Int {
    var count = 0
    let words = S.components(separatedBy: " ")
    for word in words {
        if word.hasPrefix("I") {
            count += 1
        }
    }
    return count
}
```swift
// You'll be given a string of words, and your task is to count the number
// of boredoms. A boredom is a sentence that starts with the word "I".
// Sentences are delimited by '.', '?' or '!'.
// For example:
// isBored(S: "Hello world") == 0
// isBored(S: "The sky is blue. The sun is shining. I love this weather") == 1
func isBored(S: String) -> Int {
    var count = 0
    let words = S.components(separatedBy: " ")
    for word in words {
        if word.hasPrefix("I") {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func isBored(S: String) -> Int {
    let words = S.split(separator: " ")
    var count = 0
    for word in words {
        if word.hasPrefix("I") {
            count += 1
        }
    }
    return count
}
```swift
// You'll be given a string of words, and your task is to count the number
// of boredoms. A boredom is a sentence that starts with the word "I".
// Sentences are delimited by '.', '?' or '!'.
// For example:
// isBored(S: "Hello world") == 0
// isBored(S: "The sky is blue. The sun is shining. I love this weather") == 1
func isBored(S: String) -> Int {
    let words = S.split(separator: " ")
    var count = 0
    for word in words {
        if word.hasPrefix("I") {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func isBored(S: String) -> Int {
    let words = S.components(separatedBy: " ")
    var count = 0
    for word in words {
        if word.hasPrefix("I") {
            count += 1
        }
    }
    return count
}
```swift
// You'll be given a string of words, and your task is to count the number
// of boredoms. A boredom is a sentence that starts with the word "I".
// Sentences are delimited by '.', '?' or '!'.
// For example:
// isBored(S: "Hello world") == 0
// isBored(S: "The sky is blue. The sun is shining. I love this weather") == 1
func isBored(S: String) -> Int {
    let words = S.components(separatedBy: " ")
    var count = 0
    for word in words {
        if word.hasPrefix("I") {
            count += 1
        }
    }
    return count
}
<|file_separator|>```
 // XCTAssertTrue failed

func isBored(S: String) -> Int {
    let words = S.components(separatedBy: " ")
    var count = 0
    for word in words {
        if word.hasPrefix("I") {
            count += 1
        }
    }
    return count
}
```swift
// You'll be given a string of words, and your task is to count the number
// of boredoms. A boredom is a sentence that starts with the word "I".
// Sentences are delimited by '.', '?' or '!'.
// For example:
// isBored(S: "Hello world") == 0
// isBored(S: "The sky is blue. The sun is shining. I love this weather") == 1
func isBored(S: String) -> Int {
    let words = S.components(separatedBy: " ")
    var count = 0
    for word in words {
        if word.hasPrefix("I") {
            count += 1
        }
    }
    return count
}
<|file_separator|>```
 // XCTAssertTrue failed

func isBored(S: String) -> Int {
    let words = S.components(separatedBy: " ")
    var count = 0
    for word in words {
        if word.hasPrefix("I") {
            count += 1
        }
    }
    return count
}
```swift
// You'll be given a string of words, and your task is to count the number
// of boredoms. A boredom is a sentence that starts with the word "I".
// Sentences are delimited by '.', '?' or '!'.
// For example:
// isBored(S: "Hello world") == 0
// isBored(S: "The sky is blue. The sun is shining. I love this weather") == 1
func isBored(S: String) -> Int {
    let words = S.components(separatedBy: " ")
    var count = 0
    for word in words {
        if word.hasPrefix("I") {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func isBored(S: String) -> Int {
    var count = 0
    var sentence = S.split(separator: " ")
    for word in sentence {
        if word.starts(with: "I") {
            count += 1
        }
    }
    return count
}
```swift
// You'll be given a string of words, and your task is to count the number
// of boredoms. A boredom is a sentence that starts with the word "I".
// Sentences are delimited by '.', '?' or '!'.
// For example:
// isBored(S: "Hello world") == 0
// isBored(S: "The sky is blue. The sun is shining. I love this weather") == 1
func isBored(S: String) -> Int {
    var count = 0
    var sentence = S.split(separator: " ")
    for word in sentence {
        if word.starts(with: "I") {
            count += 1
        }
    }
    return count
}
<|file_separator|>
var sentence = S.split(separator: " ") // variable 'sentence' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func isBored(S: String) -> Int {
    let sentences = S.split(separator: ".", omittingEmptySubsequences: false)
    var count = 0
    for sentence in sentences {
        if sentence.split(separator: " ").first == "I" {
            count += 1
        }
    }
    return count
}
```swift
// You'll be given a string of words, and your task is to count the number
// of boredoms. A boredom is a sentence that starts with the word "I".
// Sentences are delimited by '.', '?' or '!'.
// For example:
// isBored(S: "Hello world") == 0
// isBored(S: "The sky is blue. The sun is shining. I love this weather") == 1
func isBored(S: String) -> Int {
    let sentences = S.split(separator: ".", omittingEmptySubsequences: false)
    var count = 0
    for sentence in sentences {
        if sentence.split(separator: " ").first == "I" {
            count += 1
        }
    }
    return count
}
<|file_separator|>

func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if (x + y == z) || (x + z == y) || (y + z == x) {
        return true
    } else {
        return false
    }
}
```swift
// Create a function that takes 3 numbers.
// Returns true if one of the numbers is equal to the sum of the other two, and all numbers are integers.
// Returns false in any other cases.
// Examples
// anyInt(x: 5, y: 2, z: 7) == true
// anyInt(x: 3, y: 2, z: 2) == false
// anyInt(x: 3, y: -2, z: 1) == true
// anyInt(x: 3.6, y: -2.2, z: 2) == false
func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if (x + y == z) || (x + z == y) || (y + z == x) {
        return true
    } else {
        return false
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if (x + y == z) || (x + z == y) || (y + z == x) {
        return true
    } else {
        return false
    }
}
```swift
// Create a function that takes 3 numbers.
// Returns true if one of the numbers is equal to the sum of the other two, and all numbers are integers.
// Returns false in any other cases.
// Examples
// anyInt(x: 5, y: 2, z: 7) == true
// anyInt(x: 3, y: 2, z: 2) == false
// anyInt(x: 3, y: -2, z: 1) == true
// anyInt(x: 3.6, y: -2.2, z: 2) == false
func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if (x + y == z) || (x + z == y) || (y + z == x) {
        return true
    } else {
        return false
    }
}
<|file_separator|>```
 // XCTAssertTrue failed

func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if (x + y == z) || (x + z == y) || (y + z == x) {
        return true
    } else {
        return false
    }
}
```swift
// Create a function that takes 3 numbers.
// Returns true if one of the numbers is equal to the sum of the other two, and all numbers are integers.
// Returns false in any other cases.
// Examples
// anyInt(x: 5, y: 2, z: 7) == true
// anyInt(x: 3, y: 2, z: 2) == false
// anyInt(x: 3, y: -2, z: 1) == true
// anyInt(x: 3.6, y: -2.2, z: 2) == false
func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if (x + y == z) || (x + z == y) || (y + z == x) {
        return true
    } else {
        return false
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if x == y + z || x == z + y || y == x + z || y == z + x || z == x + y || z == y + x {
        return true
    } else {
        return false
    }
}
```swift
// Create a function that takes 3 numbers.
// Returns true if one of the numbers is equal to the sum of the other two, and all numbers are integers.
// Returns false in any other cases.
// Examples
// anyInt(x: 5, y: 2, z: 7) == true
// anyInt(x: 3, y: 2, z: 2) == false
// anyInt(x: 3, y: -2, z: 1) == true
// anyInt(x: 3.6, y: -2.2, z: 2) == false
func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if x == y + z || x == z + y || y == x + z || y == z + x || z == x + y || z == y + x {
        return true
    } else {
        return false
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if (x + y == z) || (x + z == y) || (y + z == x) {
        return true
    } else {
        return false
    }
}
```swift
// Create a function that takes 3 numbers.
// Returns true if one of the numbers is equal to the sum of the other two, and all numbers are integers.
// Returns false in any other cases.
// Examples
// anyInt(x: 5, y: 2, z: 7) == true
// anyInt(x: 3, y: 2, z: 2) == false
// anyInt(x: 3, y: -2, z: 1) == true
// anyInt(x: 3.6, y: -2.2, z: 2) == false
func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if (x + y == z) || (x + z == y) || (y + z == x) {
        return true
    } else {
        return false
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if x == y + z || x == z + y || y == x + z || y == z + x || z == x + y || z == y + x {
        return true
    }
    return false
}
```swift
// Create a function that takes 3 numbers.
// Returns true if one of the numbers is equal to the sum of the other two, and all numbers are integers.
// Returns false in any other cases.
// Examples
// anyInt(x: 5, y: 2, z: 7) == true
// anyInt(x: 3, y: 2, z: 2) == false
// anyInt(x: 3, y: -2, z: 1) == true
// anyInt(x: 3.6, y: -2.2, z: 2) == false
func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if x == y + z || x == z + y || y == x + z || y == z + x || z == x + y || z == y + x {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if (x == y + z) || (x == z + y) || (y == x + z) || (y == z + x) || (z == x + y) || (z == y + x) {
        return true
    } else {
        return false
    }
}
```swift
// Create a function that takes 3 numbers.
// Returns true if one of the numbers is equal to the sum of the other two, and all numbers are integers.
// Returns false in any other cases.
// Examples
// anyInt(x: 5, y: 2, z: 7) == true
// anyInt(x: 3, y: 2, z: 2) == false
// anyInt(x: 3, y: -2, z: 1) == true
// anyInt(x: 3.6, y: -2.2, z: 2) == false
func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if (x == y + z) || (x == z + y) || (y == x + z) || (y == z + x) || (z == x + y) || (z == y + x) {
        return true
    } else {
        return false
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func anyInt(x: Double, y: Double, z: Double) -> Bool {
    return (x + y == z) || (x + z == y) || (y + z == x)
}

func capitalize(str: String) -> String {
    return str.components(separatedBy: " ").map { $0.capitalized }.joined(separator: " ")
}
```swift
// Create a function that takes 3 numbers.
// Returns true if one of the numbers is equal to the sum of the other two, and all numbers are integers.
// Returns false in any other cases.
// Examples
// anyInt(x: 5, y: 2, z: 7) == true
// anyInt(x: 3, y: 2, z: 2) == false
// anyInt(x: 3, y: -2, z: 1) == true
// anyInt(x: 3.6, y: -2.2, z: 2) == false
func anyInt(x: Double, y: Double, z: Double) -> Bool {
    return (x + y == z) || (x + z == y) || (y + z == x)
}

// Create a function that takes a string and returns the string with the first letter of each word capitalized.
// Examples
// capitalize("hello world") == "Hello World"
// capitalize("hello world, my name is William") == "Hello World, My Name Is James"
func capitalize(str: String) -> String {
    return str.components(separatedBy: " ").map { $0.capitalized }.joined(separator: " ")
}

// Create a function that takes a string and returns the string with the first letter of each word capitalized.
// Examples
// capitalize("hello world") == "Hello World"
// capitalize("hello world, my name is William") == "Hello World, My Name Is James"
func capitalize(str: String) -> String {
    return str.components(separatedBy: " ").map { $0.capitalized }.joined(separator: " ")
}

// Create a function that takes a string and returns the string with the first letter of each word capitalized.
// Examples
// capitalize("hello world") == "Hello World"
// capitalize("hello world, my name is John") == "Hello World, My Name Is John"
func capitalize(str: String) -> String {
    return str.components(separatedBy: " ").map { $0.capitalized }.joined(separator: " ")
}

// Create a function that takes a string and returns the string with the first letter of each word capitalized.
// Examples
// capitalize("hello world") == "Hello World"
// capitalize("hello world, my name is John") == "Hello World, My Name Is John"
func capitalize(str: String) -> String {
    return str.components(separatedBy: " ").map { $0.capitalized }.joined(separator: " ")
}

// Create a function that takes a string and returns the string with the first letter of each word capitalized.
// Examples
// capitalize("hello world") == "Hello World"
// capitalize("hello world, my name is William") == "Hello World, My Name Is John"
func capitalize(str: String) -> String {
    return str.components(separatedBy: " ").map { $0.capitalized }.joined(separator: " ")
}

// Create a function that takes a string and returns the string with the first letter of each word capitalized.
// Examples
// capitalize("hello world") == "Hello World"
// capitalize("hello world, my name is John") == "Hello World, My Name Is John"
func capitalize(str: String) -> String {
    return str.components(separatedBy: " ").map { $0.capitalized }.joined(separator: " ")
}

// Create a function that takes a string and returns the string with the first letter of each word capitalized.
// Examples
// capitalize("hello world") == "Hello World"
// capitalize("hello world, my name is John") == "Hello World, My Name Is John"
func capitalize(str: String) -> String {
    return str.components(separatedBy: " ").map { $0.capitalized }.joined(separator: " ")
}

// Create a function that takes a string and returns the string with the first letter of each word capitalized.
// Examples
// capitalize("hello world") == "Hello World"
// capitalize("hello world, my name is John") == "Hello World, My Name Is John"
func capitalize(str: String) -> String {
    return str.components(separatedBy: " ").map { $0.capitalized }.joined(separator: " ")
}

// Create a function that takes a string and returns the string with the first letter of each word capitalized.
// Examples
// capitalize("hello world") == "Hello World"
// capitalize("hello world, my name is John") == "Hello World, My Name Is John"
func capitalize(str: String) -> String {
    return str.components(separatedBy: " ").map { $0.capitalized }.joined(separator: " ")
}

// Create a function that takes a string and returns the string with the first letter of each word capitalized.
// Examples
// capitalize("hello world") == "Hello World"
// capitalize("hello world, my name is John") == "Hello World, My Name Is John"
func capitalize(str: String) -> String {
    return str.components(separatedBy: " ").map { $0.capitalized }.joined(separator: " ")
}

// Create a function that takes a string and returns the string with the first
 // XCTAssertTrue failed

func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if x == y + z || x == z + y || y == x + z || y == z + x || z == x + y || z == y + x {
        return true
    }
    return false
}
```swift
// Create a function that takes 3 numbers.
// Returns true if one of the numbers is equal to the sum of the other two, and all numbers are integers.
// Returns false in any other cases.
// Examples
// anyInt(x: 5, y: 2, z: 7) == true
// anyInt(x: 3, y: 2, z: 2) == false
// anyInt(x: 3, y: -2, z: 1) == true
// anyInt(x: 3.6, y: -2.2, z: 2) == false
func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if x == y + z || x == z + y || y == x + z || y == z + x || z == x + y || z == y + x {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if x == y + z || y == x + z || z == x + y {
        return true
    }
    return false
}
```swift
// Create a function that takes 3 numbers.
// Returns true if one of the numbers is equal to the sum of the other two, and all numbers are integers.
// Returns false in any other cases.
// Examples
// anyInt(x: 5, y: 2, z: 7) == true
// anyInt(x: 3, y: 2, z: 2) == false
// anyInt(x: 3, y: -2, z: 1) == true
// anyInt(x: 3.6, y: -2.2, z: 2) == false
func anyInt(x: Double, y: Double, z: Double) -> Bool {
    if x == y + z || y == x + z || z == x + y {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func encode(message: String) -> String {
    var result = ""
    for char in message {
        if char.isLetter {
            var newChar = char
            if newChar.isUppercase {
                newChar = newChar.lowercased()
            } else {
                newChar = newChar.uppercased()
            }
            if newChar == "a" || newChar == "e" || newChar == "i" || newChar == "o" || newChar == "u" {
                var newChar2 = newChar
                if newChar2 == "a" {
                    newChar2 = "c"
                } else if newChar2 == "e" {
                    newChar2 = "f"
                } else if newChar2 == "i" {
                    newChar2 = "h"
                } else if newChar2 == "o" {
                    newChar2 = "k"
                } else if newChar2 == "u" {
                    newChar2 = "m"
                }
                newChar = newChar2
            }
            result += newChar
        } else {
            result += String(char)
        }
    }
    return result
}

func decode(message: String) -> String {
    var result = ""
    for char in message {
        if char.isLetter {
            var newChar = char
            if newChar.isUppercase {
                newChar = newChar.lowercased()
            } else {
                newChar = newChar.uppercased()
            }
            if newChar == "a" || newChar == "e" || newChar == "i" || newChar == "o" || newChar == "u" {
                var newChar2 = newChar
                if newChar2 == "c" {
                    newChar2 = "a"
                } else if newChar2 == "f" {
                    newChar2 = "e"
                } else if newChar2 == "h" {
                    newChar2 = "i"
                } else if newChar2 == "k" {
                    newChar2 = "o"
                } else if newChar2 == "m" {
                    newChar2 = "u"
                }
                newChar = newChar2
            }
            result += newChar
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// encode(message: "test") == "TGST"
// encode(message: "This is a message") == "tHKS KS C MGSSCGG"
func encode(message: String) -> String {
    var result = ""
    for char in message {
        if char.isLetter {
            var newChar = char
            if newChar.isUppercase {
                newChar = newChar.lowercased()
            } else {
                newChar = newChar.uppercased()
            }
            if newChar == "a" || newChar == "e" || newChar == "i" || newChar == "o" || newChar == "u" {
                var newChar2 = newChar
                if newChar2 == "a" {
                    newChar2 = "c"
                } else if newChar2 == "e" {
                    newChar2 = "f"
                } else if newChar2 == "i" {
                    newChar2 = "h"
                } else if newChar2 == "o" {
                    newChar2 = "k"
                } else if newChar2 == "u" {
                    newChar2 = "m"
                }
                newChar = newChar2
            }
            result += newChar
        } else {
            result += String(char)
        }
    }
    return result
}

// Write a function that takes a message, and decodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// decode(message: "TGST") == "test"
// decode(message: "tHKS KS C MGSSCGG") == "This is a message"
func decode(message: String) -> String {
    var result = ""
    for char in message {
        if char.isLetter {
            var newChar = char
            if newChar.isUppercase {
                newChar = newChar.lowercased()
            } else {
                newChar = newChar.uppercased()
            }
            if newChar == "a" || newChar == "e" || newChar == "i" || newChar == "o" || newChar == "u" {
                var newChar2 = newChar
                if newChar2 == "c" {
                    newChar2 = "a"
                } else if newChar2 == "f" {
                    newChar2 = "e"
                } else if newChar2 == "h" {
                    newChar2 = "i"
                } else if newChar2 == "k" {
                    newChar2 = "o"
                } else if newChar2 == "m" {
                    newChar2 = "u"
                }
                newChar = newChar2
            }
            result += newChar
        } else {
            result += String(char)
        }
    }
    return result
}

// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// encode(message: "test") == "TGST"
// encode(message: "This is a message") == "tHKS KS C MGSSCGG"
func encode(message: String) -> String {
    var result = ""
    for char in message {
        if char.isLetter {
            var newChar = char
            if newChar.isUppercase {
                newChar = newChar.lowercased()
            } else {
                newChar = newChar.uppercased()
            }
            if newChar == "a" || newChar == "e" || newChar == "i" || newChar == "o" || newChar == "u" {
                var newChar2 = newChar
                if newChar2 == "a" {
                    newChar2 = "c"
                } else if newChar2 == "e" {
                    newChar2 = "f"
                } else if newChar2 == "i" {
                    newChar2 = "h"
                } else if newChar2 == "o" {
                    newChar2 = "k"
                } else if newChar2 == "u" {
                    newChar2 = "m"
                }
                newChar = newChar2
            }
            result += newChar
        } else {
            result += String
newChar = newChar.lowercased() // cannot assign value of type 'String' to type 'Character'
newChar = newChar.uppercased() // cannot assign value of type 'String' to type 'Character'
result += newChar // cannot convert value of type 'Character' to expected argument type 'String'
newChar = newChar.lowercased() // cannot assign value of type 'String' to type 'Character'
newChar = newChar.uppercased() // cannot assign value of type 'String' to type 'Character'
result += newChar // cannot convert value of type 'Character' to expected argument type 'String'

func encode(message: String) -> String {
    var result = ""
    let vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if vowels.contains(String(char).lowercased()) {
            if char.isUppercase {
                result += String(char).lowercased()
            } else {
                result += String(char).uppercased()
            }
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// encode(message: "test") == "TGST"
// encode(message: "This is a message") == "tHKS KS C MGSSCGG"
func encode(message: String) -> String {
    var result = ""
    let vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if vowels.contains(String(char).lowercased()) {
            if char.isUppercase {
                result += String(char).lowercased()
            } else {
                result += String(char).uppercased()
            }
        } else {
            result += String(char)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func encode(message: String) -> String {
    var result = ""
    let vowels = ["a", "e", "i", "o", "u", "A", "E", "I", "O", "U"]
    for char in message {
        if vowels.contains(String(char)) {
            var index = vowels.firstIndex(of: String(char))!
            index += 2
            if index > 24 {
                index -= 24
            }
            result += vowels[index]
        } else {
            result += String(char).uppercased()
        }
    }
    return result
}
```swift
// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// encode(message: "test") == "TGST"
// encode(message: "This is a message") == "tHKS KS C MGSSCGG"
func encode(message: String) -> String {
    var result = ""
    let vowels = ["a", "e", "i", "o", "u", "A", "E", "I", "O", "U"]
    for char in message {
        if vowels.contains(String(char)) {
            var index = vowels.firstIndex(of: String(char))!
            index += 2
            if index > 24 {
                index -= 24
            }
            result += vowels[index]
        } else {
            result += String(char).uppercased()
        }
    }
    return result
}

print(encode(message: "test"))
print(encode(message: "This is a message"))<|file_separator|>
 // XCTAssertTrue failed

func encode(message: String) -> String {
    var result = ""
    for char in message {
        if char.isLetter {
            var char = char
            if char.isUppercase {
                char = char.lowercased()
            } else {
                char = char.uppercased()
            }
            var index = char.asciiValue! - 97
            index = (index + 1) % 26
            char = Character(UnicodeScalar(97 + index)!)
            if char.isUppercase {
                char = char.lowercased()
            } else {
                char = char.uppercased()
            }
            result += String(char)
        } else {
            result += String(char)
        }
    }
    return result
}

func decode(message: String) -> String {
    var result = ""
    for char in message {
        if char.isLetter {
            var char = char
            if char.isUppercase {
                char = char.lowercased()
            } else {
                char = char.uppercased()
            }
            var index = char.asciiValue! - 97
            index = (index + 26 - 1) % 26
            char = Character(UnicodeScalar(97 + index)!)
            if char.isUppercase {
                char = char.lowercased()
            } else {
                char = char.uppercased()
            }
            result += String(char)
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// encode(message: "test") == "TGST"
// encode(message: "This is a message") == "tHKS KS C MGSSCGG"
func encode(message: String) -> String {
    var result = ""
    for char in message {
        if char.isLetter {
            var char = char
            if char.isUppercase {
                char = char.lowercased()
            } else {
                char = char.uppercased()
            }
            var index = char.asciiValue! - 97
            index = (index + 1) % 26
            char = Character(UnicodeScalar(97 + index)!)
            if char.isUppercase {
                char = char.lowercased()
            } else {
                char = char.uppercased()
            }
            result += String(char)
        } else {
            result += String(char)
        }
    }
    return result
}

// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// decode(message: "TGST") == "test"
// decode(message: "tHKS KS C MGSSCGG") == "This is a message"
func decode(message: String) -> String {
    var result = ""
    for char in message {
        if char.isLetter {
            var char = char
            if char.isUppercase {
                char = char.lowercased()
            } else {
                char = char.uppercased()
            }
            var index = char.asciiValue! - 97
            index = (index + 26 - 1) % 26
            char = Character(UnicodeScalar(97 + index)!)
            if char.isUppercase {
                char = char.lowercased()
            } else {
                char = char.uppercased()
            }
            result += String(char)
        } else {
            result += String(char)
        }
    }
    return result
}
<|file_separator|>
char = char.lowercased() // cannot assign value of type 'String' to type 'Character'
char = char.uppercased() // cannot assign value of type 'String' to type 'Character'
char = Character(UnicodeScalar(97 + index)!) // cannot force unwrap value of non-optional type 'UnicodeScalar' (aka 'Unicode.Scalar')
char = char.lowercased() // cannot assign value of type 'String' to type 'Character'
char = char.uppercased() // cannot assign value of type 'String' to type 'Character'
char = char.lowercased() // cannot assign value of type 'String' to type 'Character'
char = char.uppercased() // cannot assign value of type 'String' to type 'Character'
char = Character(UnicodeScalar(97 + index)!) // cannot force unwrap value of non-optional type 'UnicodeScalar' (aka 'Unicode.Scalar')
char = char.lowercased() // cannot assign value of type 'String' to type 'Character'
char = char.uppercased() // cannot assign value of type 'String' to type 'Character'

func encode(message: String) -> String {
    var result = ""
    let vowels = ["a", "e", "i", "o", "u", "y"]
    for char in message {
        if vowels.contains(String(char).lowercased()) {
            let index = vowels.firstIndex(of: String(char).lowercased())!
            let newChar = vowels[(index + 2) % 5]
            result += newChar
        } else {
            result += String(char).lowercased()
        }
    }
    return result
}
```swift
// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// encode(message: "test") == "TGST"
// encode(message: "This is a message") == "tHKS KS C MGSSCGG"
func encode(message: String) -> String {
    var result = ""
    let vowels = ["a", "e", "i", "o", "u", "y"]
    for char in message {
        if vowels.contains(String(char).lowercased()) {
            let index = vowels.firstIndex(of: String(char).lowercased())!
            let newChar = vowels[(index + 2) % 5]
            result += newChar
        } else {
            result += String(char).lowercased()
        }
    }
    return result
}

print(encode(message: "test"))
print(encode(message: "This is a message"))
<|file_separator|>
 // XCTAssertTrue failed

func encode(message: String) -> String {
    var result = ""
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                result += String(char.lowercased())
            } else {
                result += String(char.uppercased())
            }
        } else {
            result += String(char)
        }
    }
    return result
}

func encode2(message: String) -> String {
    var result = ""
    var vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.lowercased())
                } else {
                    result += String(char.uppercased())
                }
            } else {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.uppercased())
                } else {
                    result += String(char.lowercased())
                }
            }
        } else {
            result += String(char)
        }
    }
    return result
}

func encode3(message: String) -> String {
    var result = ""
    var vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.lowercased())
                } else {
                    result += String(char.uppercased())
                }
            } else {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.uppercased())
                } else {
                    result += String(char.lowercased())
                }
            }
        } else {
            result += String(char)
        }
    }
    return result
}

func encode4(message: String) -> String {
    var result = ""
    var vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.lowercased())
                } else {
                    result += String(char.uppercased())
                }
            } else {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.uppercased())
                } else {
                    result += String(char.lowercased())
                }
            }
        } else {
            result += String(char)
        }
    }
    return result
}

func encode5(message: String) -> String {
    var result = ""
    var vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.lowercased())
                } else {
                    result += String(char.uppercased())
                }
            } else {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.uppercased())
                } else {
                    result += String(char.lowercased())
                }
            }
        } else {
            result += String(char)
        }
    }
    return result
}

func encode6(message: String) -> String {
    var result = ""
    var vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.lowercased())
                } else {
                    result += String(char.uppercased())
                }
            } else {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.uppercased())
                } else {
                    result += String(char.lowercased())
                }
            }
        } else {
            result += String(char)
        }
    }
    return result
}
```swift
// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// encode(message: "test") == "TGST"
// encode(message: "This is a message") == "tHKS KS C MGSSCGG"
func encode(message: String) -> String {
    var result = ""
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                result += String(char.lowercased())
            } else {
                result += String(char.uppercased())
            }
        } else {
            result += String(char)
        }
    }
    return result
}

func encode2(message: String) -> String {
    var result = ""
    var vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.lowercased())
                } else {
                    result += String(char.uppercased())
                }
            } else {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.uppercased())
                } else {
                    result += String(char.lowercased())
                }
            }
        } else {
            result += String(char)
        }
    }
    return result
}

func encode3(message: String) -> String {
    var result = ""
    var vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.lowercased())
                } else {
                    result += String(char.uppercased())
                }
            } else {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.uppercased())
                } else {
                    result += String(char.lowercased())
                }
            }
        } else {
            result += String(char)
        }
    }
    return result
}

func encode4(message: String) -> String {
    var result = ""
    var vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.lowercased())
                } else {
                    result += String(char.uppercased())
                }
            } else {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.uppercased())
                } else {
                    result += String(char.lowercased())
                }
            }
        } else {
            result += String(char)
        }
    }
    return result
}

func encode5(message: String) -> String {
    var result = ""
    var vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.lowercased())
                } else {
                    result += String(char.uppercased())
                }
            } else {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.uppercased())
                } else {
                    result += String(char.lowercased())
                }
            }
        } else {
            result += String(char)
        }
    }
    return result
}

func encode6(message: String) -> String {
    var result = ""
    var vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if char.isLetter {
            if char.isUppercase {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.lowercased())
                } else {
                    result += String(char.uppercased())
                }
            } else {
                if vowels.contains(String(char.lowercased())) {
                    result += String(char.uppercased())
                } else {
                    result += String(char.lowercased())
                }
            }
        } else {
            result += String(char)
        }
    }
    return result
}

func encode7(message: String) -> String {
    
var vowels = ["a", "e", "i", "o", "u"] // variable 'vowels' was never mutated; consider changing to 'let' constant
var vowels = ["a", "e", "i", "o", "u"] // variable 'vowels' was never mutated; consider changing to 'let' constant
var vowels = ["a", "e", "i", "o", "u"] // variable 'vowels' was never mutated; consider changing to 'let' constant
var vowels = ["a", "e", "i", "o", "u"] // variable 'vowels' was never mutated; consider changing to 'let' constant
var vowels = ["a", "e", "i", "o", "u"] // variable 'vowels' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

```swift
// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// encode(message: "test") == "TGST"
// encode(message: "This is a message") == "tHKS KS C MGSSCGG"
func encode(message: String) -> String {
    var message = message.lowercased()
    var encodedMessage = ""
    for char in message {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            var charIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            var nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex(of: char)!)
            nextCharIndex = message.index(message.startIndex, offsetBy: message.firstIndex
XCTAssertTrue(encode(message: "TEST") == "tgst") // cannot find 'encode' in scope
XCTAssertTrue(encode(message: "Mudasir") == "mWDCSKR") // cannot find 'encode' in scope
XCTAssertTrue(encode(message: "YES") == "ygs") // cannot find 'encode' in scope
XCTAssertTrue(encode(message: "This is a message") == "tHKS KS C MGSSCGG") // cannot find 'encode' in scope
XCTAssertTrue(encode(message: "I DoNt KnOw WhAt tO WrItE") == "k dQnT kNqW wHcT Tq wRkTg") // cannot find 'encode' in scope

func encode(message: String) -> String {
    var result = ""
    for char in message {
        if char == " " {
            result += " "
        } else {
            if char.isUppercase {
                result += String(char).lowercased()
            } else {
                result += String(char).uppercased()
            }
        }
    }
    return result
}
```swift
// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// encode(message: "test") == "TGST"
// encode(message: "This is a message") == "tHKS KS C MGSSCGG"
func encode(message: String) -> String {
    var result = ""
    for char in message {
        if char == " " {
            result += " "
        } else {
            if char.isUppercase {
                result += String(char).lowercased()
            } else {
                result += String(char).uppercased()
            }
        }
    }
    return result
}
<|file_separator|>```
 // XCTAssertTrue failed

func encode(message: String) -> String {
    let vowels = ["a", "e", "i", "o", "u"]
    var encodedMessage = ""
    for char in message {
        if vowels.contains(String(char).lowercased()) {
            let index = vowels.firstIndex(of: String(char).lowercased())!
            let nextIndex = (index + 2) % 5
            let nextVowel = vowels[nextIndex]
            encodedMessage += nextVowel
        } else {
            encodedMessage += String(char).lowercased()
        }
    }
    return encodedMessage
}
```swift
// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// encode(message: "test") == "TGST"
// encode(message: "This is a message") == "tHKS KS C MGSSCGG"
func encode(message: String) -> String {
    let vowels = ["a", "e", "i", "o", "u"]
    var encodedMessage = ""
    for char in message {
        if vowels.contains(String(char).lowercased()) {
            let index = vowels.firstIndex(of: String(char).lowercased())!
            let nextIndex = (index + 2) % 5
            let nextVowel = vowels[nextIndex]
            encodedMessage += nextVowel
        } else {
            encodedMessage += String(char).lowercased()
        }
    }
    return encodedMessage
}

print(encode(message: "test"))
print(encode(message: "This is a message"))
<|file_separator|>
 // XCTAssertTrue failed

func encode(message: String) -> String {
    var result = ""
    let vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if vowels.contains(String(char).lowercased()) {
            if let index = vowels.firstIndex(of: String(char).lowercased()) {
                let nextIndex = (index + 2) % 5
                result += vowels[nextIndex]
            }
        } else {
            result += String(char).uppercased()
        }
    }
    return result
}
```swift
// Write a function that takes a message, and encodes in such a 
// way that it swaps case of all letters, replaces all vowels in 
// the message with the letter that appears 2 places ahead of that 
// vowel in the english alphabet. 
// Assume only letters. 
// Examples:
// encode(message: "test") == "TGST"
// encode(message: "This is a message") == "tHKS KS C MGSSCGG"
func encode(message: String) -> String {
    var result = ""
    let vowels = ["a", "e", "i", "o", "u"]
    for char in message {
        if vowels.contains(String(char).lowercased()) {
            if let index = vowels.firstIndex(of: String(char).lowercased()) {
                let nextIndex = (index + 2) % 5
                result += vowels[nextIndex]
            }
        } else {
            result += String(char).uppercased()
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func skjkasdkd(lst: [Int]) -> Int {
    var prime = 0
    var sum = 0
    for i in 0..<lst.count {
        if lst[i] > prime {
            prime = lst[i]
        }
    }
    var prime2 = 0
    for i in 0..<lst.count {
        if lst[i] == prime {
            prime2 = lst[i]
        }
    }
    for i in 0..<lst.count {
        if lst[i] == prime2 {
            sum += lst[i]
        }
    }
    return sum
}
```swift
// You are given an array of integers.
// You need to find the largest prime value and return the sum of its digits.
// Examples:
// skjkasdkd(lst: [0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3]) == 10
// skjkasdkd(lst: [1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1]) == 25
// skjkasdkd(lst: [1, 3, 1, 32, 5107, 34, 83278, 109, 163, 23, 2323, 32, 30, 1, 9, 3]) == 13
// skjkasdkd(lst: [0, 724, 32, 71, 99, 32, 6, 0, 5, 91, 83, 0, 5, 6]) == 11
// skjkasdkd(lst: [0, 81, 12, 3, 1, 21]) == 3
// skjkasdkd(lst: [0, 8, 1, 2, 1, 7]) == 7
func skjkasdkd(lst: [Int]) -> Int {
    var prime = 0
    var sum = 0
    for i in 0..<lst.count {
        if lst[i] > prime {
            prime = lst[i]
        }
    }
    var prime2 = 0
    for i in 0..<lst.count {
        if lst[i] == prime {
            prime2 = lst[i]
        }
    }
    for i in 0..<lst.count {
        if lst[i] == prime2 {
            sum += lst[i]
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func skjkasdkd(lst: [Int]) -> Int {
    var maxPrime = 0
    var maxPrimeSum = 0
    for num in lst {
        if isPrime(num) {
            maxPrime = num
            break
        }
    }
    for num in lst {
        if isPrime(num) && num > maxPrime {
            maxPrime = num
        }
    }
    if maxPrime == 0 {
        return 0
    }
    for num in lst {
        if num > 0 && num % maxPrime == 0 {
            maxPrimeSum += num
        }
    }
    return maxPrimeSum
}

func isPrime(_ num: Int) -> Bool {
    if num <= 1 {
        return false
    }
    for i in 2..<num {
        if num % i == 0 {
            return false
        }
    }
    return true
}
```swift
// You are given an array of integers.
// You need to find the largest prime value and return the sum of its digits.
// Examples:
// skjkasdkd(lst: [0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3]) == 10
// skjkasdkd(lst: [1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1]) == 25
// skjkasdkd(lst: [1, 3, 1, 32, 5107, 34, 83278, 109, 163, 23, 2323, 32, 30, 1, 9, 3]) == 13
// skjkasdkd(lst: [0, 724, 32, 71, 99, 32, 6, 0, 5, 91, 83, 0, 5, 6]) == 11
// skjkasdkd(lst: [0, 81, 12, 3, 1, 21]) == 3
// skjkasdkd(lst: [0, 8, 1, 2, 1, 7]) == 7
func skjkasdkd(lst: [Int]) -> Int {
    var maxPrime = 0
    var maxPrimeSum = 0
    for num in lst {
        if isPrime(num) {
            maxPrime = num
            break
        }
    }
    for num in lst {
        if isPrime(num) && num > maxPrime {
            maxPrime = num
        }
    }
    if maxPrime == 0 {
        return 0
    }
    for num in lst {
        if num > 0 && num % maxPrime == 0 {
            maxPrimeSum += num
        }
    }
    return maxPrimeSum
}

func isPrime(_ num: Int) -> Bool {
    if num <= 1 {
        return false
    }
    for i in 2..<num {
        if num % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

```swift
// You are given an array of integers.
// You need to find the largest prime value and return the sum of its digits.
// Examples:
// skjkasdkd(lst: [0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3]) == 10
// skjkasdkd(lst: [1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1]) == 25
// skjkasdkd(lst: [1, 3, 1, 32, 5107, 34, 83278, 109, 163, 23, 2323, 32, 30, 1, 9, 3]) == 13
// skjkasdkd(lst: [0, 724, 32, 71, 99, 32, 6, 0, 5, 91, 83, 0, 5, 6]) == 11
// skjkasdkd(lst: [0, 81, 12, 3, 1, 21]) == 3
// skjkasdkd(lst: [0, 8, 1, 2, 1, 7]) == 7
func skjkasdkd(lst: [Int]) -> Int {
    var maxPrime = 0
    var maxPrimeSum = 0
    for i in 0..<lst.count {
        if lst[i] > maxPrime {
            maxPrime = lst[i]
        }
    }
    var maxPrimeDigits = 0
    var maxPrimeDigitsSum = 0
    var maxPrimeDigitsCount = 0
    var maxPrimeDigitsCountSum = 0
    var maxPrimeDigitsCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSum = 0
    var maxPrimeDigitsCountSumMaxCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSum = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSum = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSum = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSum = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSum = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSum = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSum = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMax = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCount = 0
    var maxPrimeDigitsCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCountSumMaxCount
XCTAssertTrue(skjkasdkd(lst: [0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3]) == 10) // cannot find 'skjkasdkd' in scope
XCTAssertTrue(skjkasdkd(lst: [1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1]) == 25) // cannot find 'skjkasdkd' in scope
XCTAssertTrue(skjkasdkd(lst: [1, 3, 1, 32, 5107, 34, 83278, 109, 163, 23, 2323, 32, 30, 1, 9, 3]) == 13) // cannot find 'skjkasdkd' in scope
XCTAssertTrue(skjkasdkd(lst: [0, 724, 32, 71, 99, 32, 6, 0, 5, 91, 83, 0, 5, 6]) == 11) // cannot find 'skjkasdkd' in scope
XCTAssertTrue(skjkasdkd(lst: [0, 81, 12, 3, 1, 21]) == 3) // cannot find 'skjkasdkd' in scope
XCTAssertTrue(skjkasdkd(lst: [0, 8, 1, 2, 1, 7]) == 7) // cannot find 'skjkasdkd' in scope
XCTAssertTrue(skjkasdkd(lst: [8191]) == 19) // cannot find 'skjkasdkd' in scope
XCTAssertTrue(skjkasdkd(lst: [8191, 123456, 127, 7]) == 19) // cannot find 'skjkasdkd' in scope
XCTAssertTrue(skjkasdkd(lst: [127, 97, 8192]) == 10) // cannot find 'skjkasdkd' in scope

func skjkasdkd(lst: [Int]) -> Int {
    var prime = 0
    var sum = 0
    for i in lst {
        if i == 0 {
            continue
        }
        if isPrime(i) {
            prime = i
            break
        }
    }
    for i in lst {
        if i == 0 {
            continue
        }
        if i % prime == 0 {
            sum += i
        }
    }
    return sum
}

func isPrime(_ n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    if n <= 3 {
        return true
    }
    if n % 2 == 0 || n % 3 == 0 {
        return false
    }
    for i in 5...Int(sqrt(Double(n))) {
        if n % i == 0 || n % (i + 2) == 0 {
            return false
        }
    }
    return true
}
```swift
// You are given an array of integers.
// You need to find the largest prime value and return the sum of its digits.
// Examples:
// skjkasdkd(lst: [0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3]) == 10
// skjkasdkd(lst: [1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1]) == 25
// skjkasdkd(lst: [1, 3, 1, 32, 5107, 34, 83278, 109, 163, 23, 2323, 32, 30, 1, 9, 3]) == 13
// skjkasdkd(lst: [0, 724, 32, 71, 99, 32, 6, 0, 5, 91, 83, 0, 5, 6]) == 11
// skjkasdkd(lst: [0, 81, 12, 3, 1, 21]) == 3
// skjkasdkd(lst: [0, 8, 1, 2, 1, 7]) == 7
func skjkasdkd(lst: [Int]) -> Int {
    var prime = 0
    var sum = 0
    for i in lst {
        if i == 0 {
            continue
        }
        if isPrime(i) {
            prime = i
            break
        }
    }
    for i in lst {
        if i == 0 {
            continue
        }
        if i % prime == 0 {
            sum += i
        }
    }
    return sum
}

func isPrime(_ n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    if n <= 3 {
        return true
    }
    if n % 2 == 0 || n % 3 == 0 {
        return false
    }
    for i in 5...Int(sqrt(Double(n))) {
        if n % i == 0 || n % (i + 2) == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func skjkasdkd(lst: [Int]) -> Int {
    var maxPrime = 0
    var sum = 0
    for i in lst {
        if isPrime(i) {
            maxPrime = i
        }
    }
    if maxPrime == 0 {
        return 0
    }
    while maxPrime != 0 {
        sum += maxPrime % 10
        maxPrime /= 10
    }
    return sum
}

func isPrime(_ n: Int) -> Bool {
    if n == 0 || n == 1 {
        return false
    }
    for i in 2...n / 2 {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// You are given an array of integers.
// You need to find the largest prime value and return the sum of its digits.
// Examples:
// skjkasdkd(lst: [0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3]) == 10
// skjkasdkd(lst: [1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1]) == 25
// skjkasdkd(lst: [1, 3, 1, 32, 5107, 34, 83278, 109, 163, 23, 2323, 32, 30, 1, 9, 3]) == 13
// skjkasdkd(lst: [0, 724, 32, 71, 99, 32, 6, 0, 5, 91, 83, 0, 5, 6]) == 11
// skjkasdkd(lst: [0, 81, 12, 3, 1, 21]) == 3
// skjkasdkd(lst: [0, 8, 1, 2, 1, 7]) == 7
func skjkasdkd(lst: [Int]) -> Int {
    var maxPrime = 0
    var sum = 0
    for i in lst {
        if isPrime(i) {
            maxPrime = i
        }
    }
    if maxPrime == 0 {
        return 0
    }
    while maxPrime != 0 {
        sum += maxPrime % 10
        maxPrime /= 10
    }
    return sum
}

func isPrime(_ n: Int) -> Bool {
    if n == 0 || n == 1 {
        return false
    }
    for i in 2...n / 2 {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func skjkasdkd(lst: [Int]) -> Int {
    var maxPrime = 0
    var maxPrimeSum = 0
    for i in lst {
        if isPrime(i) {
            maxPrime = i
            break
        }
    }
    for i in lst {
        if isPrime(i) && i > maxPrime {
            maxPrime = i
        }
    }
    if maxPrime == 0 {
        return 0
    }
    var sum = 0
    for i in lst {
        if i == maxPrime {
            sum += i
        }
    }
    return sum
}

func isPrime(_ n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    if n <= 3 {
        return true
    }
    if n % 2 == 0 || n % 3 == 0 {
        return false
    }
    for i in 5..<(n / 2) {
        if n % i == 0 || n % (i + 2) == 0 {
            return false
        }
    }
    return true
}
```swift
// You are given an array of integers.
// You need to find the largest prime value and return the sum of its digits.
// Examples:
// skjkasdkd(lst: [0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3]) == 10
// skjkasdkd(lst: [1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1]) == 25
// skjkasdkd(lst: [1, 3, 1, 32, 5107, 34, 83278, 109, 163, 23, 2323, 32, 30, 1, 9, 3]) == 13
// skjkasdkd(lst: [0, 724, 32, 71, 99, 32, 6, 0, 5, 91, 83, 0, 5, 6]) == 11
// skjkasdkd(lst: [0, 81, 12, 3, 1, 21]) == 3
// skjkasdkd(lst: [0, 8, 1, 2, 1, 7]) == 7
func skjkasdkd(lst: [Int]) -> Int {
    var maxPrime = 0
    var maxPrimeSum = 0
    for i in lst {
        if isPrime(i) {
            maxPrime = i
            break
        }
    }
    for i in lst {
        if isPrime(i) && i > maxPrime {
            maxPrime = i
        }
    }
    if maxPrime == 0 {
        return 0
    }
    var sum = 0
    for i in lst {
        if i == maxPrime {
            sum += i
        }
    }
    return sum
}

func isPrime(_ n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    if n <= 3 {
        return true
    }
    if n % 2 == 0 || n % 3 == 0 {
        return false
    }
    for i in 5..<(n / 2) {
        if n % i == 0 || n % (i + 2) == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
var maxPrimeSum = 0 // initialization of variable 'maxPrimeSum' was never used; consider replacing with assignment to '_' or removing it
 // Fatal error: Range requires lowerBound <= upperBound

func skjkasdkd(lst: [Int]) -> Int {
    var lst = lst
    var sum = 0
    while lst.count > 0 {
        var max = 0
        for i in 0..<lst.count {
            if lst[i] > max {
                max = lst[i]
            }
        }
        sum += max
        lst = lst.filter { $0 != max }
    }
    return sum
}
```swift
// You are given an array of integers.
// You need to find the largest prime value and return the sum of its digits.
// Examples:
// skjkasdkd(lst: [0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3]) == 10
// skjkasdkd(lst: [1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1]) == 25
// skjkasdkd(lst: [1, 3, 1, 32, 5107, 34, 83278, 109, 163, 23, 2323, 32, 30, 1, 9, 3]) == 13
// skjkasdkd(lst: [0, 724, 32, 71, 99, 32, 6, 0, 5, 91, 83, 0, 5, 6]) == 11
// skjkasdkd(lst: [0, 81, 12, 3, 1, 21]) == 3
// skjkasdkd(lst: [0, 8, 1, 2, 1, 7]) == 7
func skjkasdkd(lst: [Int]) -> Int {
    var lst = lst
    var sum = 0
    while lst.count > 0 {
        var max = 0
        for i in 0..<lst.count {
            if lst[i] > max {
                max = lst[i]
            }
        }
        sum += max
        lst = lst.filter { $0 != max }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func skjkasdkd(lst: [Int]) -> Int {
    var maxPrime = 0
    var maxPrimeDigits = 0
    for i in lst {
        if i == 0 {
            continue
        }
        var prime = true
        for j in 2..<i {
            if i % j == 0 {
                prime = false
                break
            }
        }
        if prime {
            if i > maxPrime {
                maxPrime = i
                maxPrimeDigits = 0
            }
            if i == maxPrime {
                maxPrimeDigits += 1
            }
        }
    }
    return maxPrimeDigits
}
```swift
// You are given an array of integers.
// You need to find the largest prime value and return the sum of its digits.
// Examples:
// skjkasdkd(lst: [0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3]) == 10
// skjkasdkd(lst: [1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1]) == 25
// skjkasdkd(lst: [1, 3, 1, 32, 5107, 34, 83278, 109, 163, 23, 2323, 32, 30, 1, 9, 3]) == 13
// skjkasdkd(lst: [0, 724, 32, 71, 99, 32, 6, 0, 5, 91, 83, 0, 5, 6]) == 11
// skjkasdkd(lst: [0, 81, 12, 3, 1, 21]) == 3
// skjkasdkd(lst: [0, 8, 1, 2, 1, 7]) == 7
func skjkasdkd(lst: [Int]) -> Int {
    var maxPrime = 0
    var maxPrimeDigits = 0
    for i in lst {
        if i == 0 {
            continue
        }
        var prime = true
        for j in 2..<i {
            if i % j == 0 {
                prime = false
                break
            }
        }
        if prime {
            if i > maxPrime {
                maxPrime = i
                maxPrimeDigits = 0
            }
            if i == maxPrime {
                maxPrimeDigits += 1
            }
        }
    }
    return maxPrimeDigits
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func skjkasdkd(lst: [Int]) -> Int {
    var maxPrime = 0
    var maxPrimeSum = 0
    for i in 0..<lst.count {
        if lst[i] > maxPrime {
            maxPrime = lst[i]
        }
    }
    for i in 0..<lst.count {
        if lst[i] == maxPrime {
            maxPrimeSum += lst[i]
        }
    }
    return maxPrimeSum
}
```swift
// You are given an array of integers.
// You need to find the largest prime value and return the sum of its digits.
// Examples:
// skjkasdkd(lst: [0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3]) == 10
// skjkasdkd(lst: [1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1]) == 25
// skjkasdkd(lst: [1, 3, 1, 32, 5107, 34, 83278, 109, 163, 23, 2323, 32, 30, 1, 9, 3]) == 13
// skjkasdkd(lst: [0, 724, 32, 71, 99, 32, 6, 0, 5, 91, 83, 0, 5, 6]) == 11
// skjkasdkd(lst: [0, 81, 12, 3, 1, 21]) == 3
// skjkasdkd(lst: [0, 8, 1, 2, 1, 7]) == 7
func skjkasdkd(lst: [Int]) -> Int {
    var maxPrime = 0
    var maxPrimeSum = 0
    for i in 0..<lst.count {
        if lst[i] > maxPrime {
            maxPrime = lst[i]
        }
    }
    for i in 0..<lst.count {
        if lst[i] == maxPrime {
            maxPrimeSum += lst[i]
        }
    }
    return maxPrimeSum
}
<|file_separator|>
 // XCTAssertTrue failed

func skjkasdkd(lst: [Int]) -> Int {
    let prime = lst.filter { $0 > 1 && (2...$0).none { $0 != 1 && $0 != $0 && $0 % $1 == 0 } }
    return prime.reduce(0) { $0 + $1.digits.reduce(0, +) }
}
```swift
// You are given an array of integers.
// You need to find the largest prime value and return the sum of its digits.
// Examples:
// skjkasdkd(lst: [0, 3, 2, 1, 3, 5, 7, 4, 5, 5, 5, 2, 181, 32, 4, 32, 3, 2, 32, 324, 4, 3]) == 10
// skjkasdkd(lst: [1, 0, 1, 8, 2, 4597, 2, 1, 3, 40, 1, 2, 1, 2, 4, 2, 5, 1]) == 25
// skjkasdkd(lst: [1, 3, 1, 32, 5107, 34, 83278, 109, 163, 23, 2323, 32, 30, 1, 9, 3]) == 13
// skjkasdkd(lst: [0, 724, 32, 71, 99, 32, 6, 0, 5, 91, 83, 0, 5, 6]) == 11
// skjkasdkd(lst: [0, 81, 12, 3, 1, 21]) == 3
// skjkasdkd(lst: [0, 8, 1, 2, 1, 7]) == 7
func skjkasdkd(lst: [Int]) -> Int {
    let prime = lst.filter { $0 > 1 && (2...$0).none { $0 != 1 && $0 != $0 && $0 % $1 == 0 } }
    return prime.reduce(0) { $0 + $1.digits.reduce(0, +) }
}
<|file_separator|>
let prime = lst.filter { $0 > 1 && (2...$0).none { $0 != 1 && $0 != $0 && $0 % $1 == 0 } } // value of type 'ClosedRange<Int>' has no member 'none'

func countUpTo(n: Int) -> [Int] {
    var primes = [Int]()
    for i in 2...n {
        if isPrime(i) {
            primes.append(i)
        }
    }
    return primes
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(n))) {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Implement a function that takes an non-negative integer and returns an array of the first n
// integers that are prime numbers and less than n.
// for example:
// countUpTo(n: 5) == [2, 3]
// countUpTo(n: 11) == [2, 3, 5, 7]
// countUpTo(n: 0) == [] as [Int]
// countUpTo(n: 20) == [2, 3, 5, 7, 11, 13, 17, 19]
// countUpTo(n: 1) == [] as [Int]
// countUpTo(n: 18) == [2, 3, 5, 7, 11, 13, 17]
func countUpTo(n: Int) -> [Int] {
    var primes = [Int]()
    for i in 2...n {
        if isPrime(i) {
            primes.append(i)
        }
    }
    return primes
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(n))) {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
if isPrime(i) { // missing argument label 'n:' in call

func countUpTo(n: Int) -> [Int] {
    var primeNumbers = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primeNumbers.append(i)
        }
    }
    return primeNumbers
}
```swift
// Implement a function that takes an non-negative integer and returns an array of the first n
// integers that are prime numbers and less than n.
// for example:
// countUpTo(n: 5) == [2, 3]
// countUpTo(n: 11) == [2, 3, 5, 7]
// countUpTo(n: 0) == [] as [Int]
// countUpTo(n: 20) == [2, 3, 5, 7, 11, 13, 17, 19]
// countUpTo(n: 1) == [] as [Int]
// countUpTo(n: 18) == [2, 3, 5, 7, 11, 13, 17]
func countUpTo(n: Int) -> [Int] {
    var primeNumbers = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primeNumbers.append(i)
        }
    }
    return primeNumbers
}
<|file_separator|>
 // XCTAssertTrue failed

func countUpTo(n: Int) -> [Int] {
  var primes = [Int]()
  for i in 2...n {
    var isPrime = true
    for j in 2..<i {
      if i % j == 0 {
        isPrime = false
        break
      }
    }
    if isPrime {
      primes.append(i)
    }
  }
  return primes
}
```swift
// Implement a function that takes an non-negative integer and returns an array of the first n
// integers that are prime numbers and less than n.
// for example:
// countUpTo(n: 5) == [2, 3]
// countUpTo(n: 11) == [2, 3, 5, 7]
// countUpTo(n: 0) == [] as [Int]
// countUpTo(n: 20) == [2, 3, 5, 7, 11, 13, 17, 19]
// countUpTo(n: 1) == [] as [Int]
// countUpTo(n: 18) == [2, 3, 5, 7, 11, 13, 17]
func countUpTo(n: Int) -> [Int] {
  var primes = [Int]()
  for i in 2...n {
    var isPrime = true
    for j in 2..<i {
      if i % j == 0 {
        isPrime = false
        break
      }
    }
    if isPrime {
      primes.append(i)
    }
  }
  return primes
}
<|file_separator|>
 // XCTAssertTrue failed

func countUpTo(n: Int) -> [Int] {
    var primes = [Int]()
    for i in 2...n {
        if isPrime(i) {
            primes.append(i)
        }
    }
    return primes
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// Implement a function that takes an non-negative integer and returns an array of the first n
// integers that are prime numbers and less than n.
// for example:
// countUpTo(n: 5) == [2, 3]
// countUpTo(n: 11) == [2, 3, 5, 7]
// countUpTo(n: 0) == [] as [Int]
// countUpTo(n: 20) == [2, 3, 5, 7, 11, 13, 17, 19]
// countUpTo(n: 1) == [] as [Int]
// countUpTo(n: 18) == [2, 3, 5, 7, 11, 13, 17]
func countUpTo(n: Int) -> [Int] {
    var primes = [Int]()
    for i in 2...n {
        if isPrime(i) {
            primes.append(i)
        }
    }
    return primes
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
if isPrime(i) { // missing argument label 'n:' in call

func countUpTo(n: Int) -> [Int] {
    var primes = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primes.append(i)
        }
    }
    return primes
}
```swift
// Implement a function that takes an non-negative integer and returns an array of the first n
// integers that are prime numbers and less than n.
// for example:
// countUpTo(n: 5) == [2, 3]
// countUpTo(n: 11) == [2, 3, 5, 7]
// countUpTo(n: 0) == [] as [Int]
// countUpTo(n: 20) == [2, 3, 5, 7, 11, 13, 17, 19]
// countUpTo(n: 1) == [] as [Int]
// countUpTo(n: 18) == [2, 3, 5, 7, 11, 13, 17]
func countUpTo(n: Int) -> [Int] {
    var primes = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primes.append(i)
        }
    }
    return primes
}
<|file_separator|>
 // XCTAssertTrue failed

func countUpTo(n: Int) -> [Int] {
    var primes: [Int] = []
    var i = 2
    while i < n {
        if isPrime(n: i) {
            primes.append(i)
        }
        i += 1
    }
    return primes
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return false
        }
        i += 2
    }
    return true
}
```swift
// Implement a function that takes an non-negative integer and returns an array of the first n
// integers that are prime numbers and less than n.
// for example:
// countUpTo(n: 5) == [2, 3]
// countUpTo(n: 11) == [2, 3, 5, 7]
// countUpTo(n: 0) == [] as [Int]
// countUpTo(n: 20) == [2, 3, 5, 7, 11, 13, 17, 19]
// countUpTo(n: 1) == [] as [Int]
// countUpTo(n: 18) == [2, 3, 5, 7, 11, 13, 17]
func countUpTo(n: Int) -> [Int] {
    var primes: [Int] = []
    var i = 2
    while i < n {
        if isPrime(n: i) {
            primes.append(i)
        }
        i += 1
    }
    return primes
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return false
        }
        i += 2
    }
    return true
}
<|file_separator|>

func countUpTo(n: Int) -> [Int] {
    var result = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement a function that takes an non-negative integer and returns an array of the first n
// integers that are prime numbers and less than n.
// for example:
// countUpTo(n: 5) == [2, 3]
// countUpTo(n: 11) == [2, 3, 5, 7]
// countUpTo(n: 0) == [] as [Int]
// countUpTo(n: 20) == [2, 3, 5, 7, 11, 13, 17, 19]
// countUpTo(n: 1) == [] as [Int]
// countUpTo(n: 18) == [2, 3, 5, 7, 11, 13, 17]
func countUpTo(n: Int) -> [Int] {
    var result = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func countUpTo(n: Int) -> [Int] {
    var result = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
            }
        }
        if isPrime {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement a function that takes an non-negative integer and returns an array of the first n
// integers that are prime numbers and less than n.
// for example:
// countUpTo(n: 5) == [2, 3]
// countUpTo(n: 11) == [2, 3, 5, 7]
// countUpTo(n: 0) == [] as [Int]
// countUpTo(n: 20) == [2, 3, 5, 7, 11, 13, 17, 19]
// countUpTo(n: 1) == [] as [Int]
// countUpTo(n: 18) == [2, 3, 5, 7, 11, 13, 17]
func countUpTo(n: Int) -> [Int] {
    var result = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
            }
        }
        if isPrime {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func countUpTo(n: Int) -> [Int] {
    var result = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement a function that takes an non-negative integer and returns an array of the first n
// integers that are prime numbers and less than n.
// for example:
// countUpTo(n: 5) == [2, 3]
// countUpTo(n: 11) == [2, 3, 5, 7]
// countUpTo(n: 0) == [] as [Int]
// countUpTo(n: 20) == [2, 3, 5, 7, 11, 13, 17, 19]
// countUpTo(n: 1) == [] as [Int]
// countUpTo(n: 18) == [2, 3, 5, 7, 11, 13, 17]
func countUpTo(n: Int) -> [Int] {
    var result = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func countUpTo(n: Int) -> [Int] {
    var primeNumbers = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primeNumbers.append(i)
        }
    }
    return primeNumbers
}
```swift
// Implement a function that takes an non-negative integer and returns an array of the first n
// integers that are prime numbers and less than n.
// for example:
// countUpTo(n: 5) == [2, 3]
// countUpTo(n: 11) == [2, 3, 5, 7]
// countUpTo(n: 0) == [] as [Int]
// countUpTo(n: 20) == [2, 3, 5, 7, 11, 13, 17, 19]
// countUpTo(n: 1) == [] as [Int]
// countUpTo(n: 18) == [2, 3, 5, 7, 11, 13, 17]
func countUpTo(n: Int) -> [Int] {
    var primeNumbers = [Int]()
    for i in 2...n {
        var isPrime = true
        for j in 2..<i {
            if i % j == 0 {
                isPrime = false
                break
            }
        }
        if isPrime {
            primeNumbers.append(i)
        }
    }
    return primeNumbers
}
<|file_separator|>
 // XCTAssertTrue failed

func multiply(a: Int, b: Int) -> Int {
  return a * b
}
```swift
// Complete the function that takes two integers and returns 
// the product of their unit digits.
// Assume the input is always valid.
// Examples:
// multiply(a: 148, b: 412) == 16
// multiply(a: 19, b: 28) == 72
// multiply(a: 2020, b: 1851) == 0
// multiply(a: 14, b: -15) == 20
func multiply(a: Int, b: Int) -> Int {
  return a * b
}
<|file_separator|>
 // XCTAssertTrue failed

func multiply(a: Int, b: Int) -> Int {
  return a * b
}
```swift
// Complete the function that takes two integers and returns 
// the product of their unit digits.
// Assume the input is always valid.
// Examples:
// multiply(a: 148, b: 412) == 16
// multiply(a: 19, b: 28) == 72
// multiply(a: 2020, b: 1851) == 0
// multiply(a: 14, b: -15) == 20
func multiply(a: Int, b: Int) -> Int {
  return a * b
}
<|file_separator|>```
 // XCTAssertTrue failed

func multiply(a: Int, b: Int) -> Int {
    return a * b
}
```swift
// Complete the function that takes two integers and returns 
// the product of their unit digits.
// Assume the input is always valid.
// Examples:
// multiply(a: 148, b: 412) == 16
// multiply(a: 19, b: 28) == 72
// multiply(a: 2020, b: 1851) == 0
// multiply(a: 14, b: -15) == 20
func multiply(a: Int, b: Int) -> Int {
    return a * b
}
<|file_separator|>
 // XCTAssertTrue failed

func multiply(a: Int, b: Int) -> Int {
    return a * b
}
```swift
// Complete the function that takes two integers and returns 
// the product of their unit digits.
// Assume the input is always valid.
// Examples:
// multiply(a: 148, b: 412) == 16
// multiply(a: 19, b: 28) == 72
// multiply(a: 2020, b: 1851) == 0
// multiply(a: 14, b: -15) == 20
func multiply(a: Int, b: Int) -> Int {
    return a * b
}
<|file_separator|>
 // XCTAssertTrue failed

func multiply(a: Int, b: Int) -> Int {
    return a * b
}
```swift
// Complete the function that takes two integers and returns 
// the product of their unit digits.
// Assume the input is always valid.
// Examples:
// multiply(a: 148, b: 412) == 16
// multiply(a: 19, b: 28) == 72
// multiply(a: 2020, b: 1851) == 0
// multiply(a: 14, b: -15) == 20
func multiply(a: Int, b: Int) -> Int {
    return a * b
}
<|file_separator|>
 // XCTAssertTrue failed

func multiply(a: Int, b: Int) -> Int {
    return a * b
}
```swift
// Complete the function that takes two integers and returns 
// the product of their unit digits.
// Assume the input is always valid.
// Examples:
// multiply(a: 148, b: 412) == 16
// multiply(a: 19, b: 28) == 72
// multiply(a: 2020, b: 1851) == 0
// multiply(a: 14, b: -15) == 20
func multiply(a: Int, b: Int) -> Int {
    return a * b
}
<|file_separator|>
 // XCTAssertTrue failed

func multiply(a: Int, b: Int) -> Int {
  return a * b
}
```swift
// Complete the function that takes two integers and returns 
// the product of their unit digits.
// Assume the input is always valid.
// Examples:
// multiply(a: 148, b: 412) == 16
// multiply(a: 19, b: 28) == 72
// multiply(a: 2020, b: 1851) == 0
// multiply(a: 14, b: -15) == 20
func multiply(a: Int, b: Int) -> Int {
  return a * b
}
<|file_separator|>
 // XCTAssertTrue failed

func multiply(a: Int, b: Int) -> Int {
  return a * b
}
```swift
// Complete the function that takes two integers and returns 
// the product of their unit digits.
// Assume the input is always valid.
// Examples:
// multiply(a: 148, b: 412) == 16
// multiply(a: 19, b: 28) == 72
// multiply(a: 2020, b: 1851) == 0
// multiply(a: 14, b: -15) == 20
func multiply(a: Int, b: Int) -> Int {
  return a * b
}
<|file_separator|>```
 // XCTAssertTrue failed

func multiply(a: Int, b: Int) -> Int {
    return a * b
}
```swift
// Complete the function that takes two integers and returns 
// the product of their unit digits.
// Assume the input is always valid.
// Examples:
// multiply(a: 148, b: 412) == 16
// multiply(a: 19, b: 28) == 72
// multiply(a: 2020, b: 1851) == 0
// multiply(a: 14, b: -15) == 20
func multiply(a: Int, b: Int) -> Int {
    return a * b
}
<|file_separator|>
 // XCTAssertTrue failed

func multiply(a: Int, b: Int) -> Int {
    return a * b
}
```swift
// Complete the function that takes two integers and returns 
// the product of their unit digits.
// Assume the input is always valid.
// Examples:
// multiply(a: 148, b: 412) == 16
// multiply(a: 19, b: 28) == 72
// multiply(a: 2020, b: 1851) == 0
// multiply(a: 14, b: -15) == 20
func multiply(a: Int, b: Int) -> Int {
    return a * b
}
<|file_separator|>
 // XCTAssertTrue failed

func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}
<|file_separator|>```
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase && i % 2 == 0 {
            count += 1
        }
    }
    return count
}
```swift
// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase && i % 2 == 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
if s[i].isUppercase && i % 2 == 0 { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}
<|file_separator|>```
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i] == "A" || s[i] == "E" || s[i] == "I" || s[i] == "O" || s[i] == "U" {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i] == "A" || s[i] == "E" || s[i] == "I" || s[i] == "O" || s[i] == "U" {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}
<|file_separator|>
if s[i] == "A" || s[i] == "E" || s[i] == "I" || s[i] == "O" || s[i] == "U" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i] == "A" || s[i] == "E" || s[i] == "I" || s[i] == "O" || s[i] == "U" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i] == "A" || s[i] == "E" || s[i] == "I" || s[i] == "O" || s[i] == "U" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i] == "A" || s[i] == "E" || s[i] == "I" || s[i] == "O" || s[i] == "U" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i] == "A" || s[i] == "E" || s[i] == "I" || s[i] == "O" || s[i] == "U" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func countUpper(s: String) -> Int {
    var count = 0
    for (index, char) in s.enumerated() {
        if index % 2 == 0 && char.isUppercase {
            count += 1
        }
    }
    return count
}
```swift
// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for (index, char) in s.enumerated() {
        if index % 2 == 0 && char.isUppercase {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}
<|file_separator|>
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}

func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 != 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}

// Given a string s, count the number of uppercase vowels in odd indices.
// For example:
// countUpper(s: "aBCdEf") == 0
// countUpper(s: "abcdefg") == 1
// countUpper(s: "dBBE") == 1
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 != 0 {
                count += 1
            }
        }
    }
    return count
}

// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}

// Given a string s, count the number of uppercase vowels in odd indices.
// For example:
// countUpper(s: "aBCdEf") == 0
// countUpper(s: "abcdefg") == 1
// countUpper(s: "dBBE") == 1
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 != 0 {
                count += 1
            }
        }
    }
    return count
}

// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}

// Given a string s, count the number of uppercase vowels in odd indices.
// For example:
// countUpper(s: "aBCdEf") == 0
// countUpper(s: "abcdefg") == 1
// countUpper(s: "dBBE") == 1
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 != 0 {
                count += 1
            }
        }
    }
    return count
}

// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}

// Given a string s, count the number of uppercase vowels in odd indices.
// For example:
// countUpper(s: "aBCdEf") == 0
// countUpper(s: "abcdefg") == 1
// countUpper(s: "dBBE") == 1
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 != 0 {
                count
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
func countUpper(s: String) -> Int { // invalid redeclaration of 'countUpper(s:)'
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func countUpper(s: String) -> Int {
    var count = 0
    for (index, char) in s.enumerated() {
        if index % 2 == 0 && char.isUppercase {
            count += 1
        }
    }
    return count
}
```swift
// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for (index, char) in s.enumerated() {
        if index % 2 == 0 && char.isUppercase {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}
<|file_separator|>
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}

func countAbc(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i...i+2] == "abc" {
            count += 1
        }
    }
    return count
}

func countAbc(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i...i+1] == "ab" {
            count += 1
        }
    }
    return count
}
```swift
// Given a string s, count the number of uppercase vowels in even indices.
// For example:
// countUpper(s: "aBCdEf") == 1
// countUpper(s: "abcdefg") == 0
// countUpper(s: "dBBE") == 0
func countUpper(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i].isUppercase {
            if i % 2 == 0 {
                count += 1
            }
        }
    }
    return count
}

// Given a string s, return the number of times that the string "abc" appears in s.
// For example:
// countAbc(s: "abc") == 1
// countAbc(s: "abcABC") == 2
// countAbc(s: "abcabcabc") == 3
func countAbc(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i...i+2] == "abc" {
            count += 1
        }
    }
    return count
}

// Given a string s, return the number of times that the string "ab" appears in s.
// For example:
// countAbc(s: "ab") == 1
// countAbc(s: "abAB") == 2
// countAbc(s: "abcabcabc") == 3
func countAbc(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i...i+1] == "ab" {
            count += 1
        }
    }
    return count
}

// Given a string s, return the number of times that the string "ab" appears in s.
// For example:
// countAbc(s: "ab") == 1
// countAbc(s: "abAB") == 2
// countAbc(s: "abcabcabc") == 3
func countAbc(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i...i+1] == "ab" {
            count += 1
        }
    }
    return count
}

// Given a string s, return the number of times that the string "ab" appears in s.
// For example:
// countAbc(s: "ab") == 1
// countAbc(s: "abAB") == 2
// countAbc(s: "abcabcabc") == 3
func countAbc(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i...i+1] == "ab" {
            count += 1
        }
    }
    return count
}

// Given a string s, return the number of times that the string "ab" appears in s.
// For example:
// countAbc(s: "ab") == 1
// countAbc(s: "abAB") == 2
// countAbc(s: "abcabcabc") == 3
func countAbc(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i...i+1] == "ab" {
            count += 1
        }
    }
    return count
}

// Given a string s, return the number of times that the string "ab" appears in s.
// For example:
// countAbc(s: "ab") == 1
// countAbc(s: "abAB") == 2
// countAbc(s: "abcabcabc") == 3
func countAbc(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i...i+1] == "ab" {
            count += 1
        }
    }
    return count
}

// Given a string s, return the number of times that the string "ab" appears in s.
// For example:
// countAbc(s: "ab") == 1
// countAbc(s: "abAB") == 2
// countAbc(s: "abcabcabc") == 3
func countAbc(s: String) -> Int {
    var count = 0
    for i in 0..<s.count {
        if s[i...i+1] == "ab" {
            count += 1
        }
    }
    return count
}

// Given a string s, return the number of times that the string "ab
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i...i+2] == "abc" { // 'subscript(_:)' is unavailable: cannot subscript String with an integer range, use a String.Index range instead.
func countAbc(s: String) -> Int { // invalid redeclaration of 'countAbc(s:)'
if s[i...i+1] == "ab" { // 'subscript(_:)' is unavailable: cannot subscript String with an integer range, use a String.Index range instead.

func closestInteger(value: String) -> Int {
    // your code here
    let number = Double(value)
    var closest = Int(number)
    var diff = abs(number - Double(closest))
    for i in 1...9 {
        let newNumber = Double(closest) + Double(i)
        let newDiff = abs(number - Double(newNumber))
        if newDiff < diff {
            diff = newDiff
            closest = Int(newNumber)
        }
    }
    return closest
}
```swift
// Create a function that takes a value (string) representing a number
// and returns the closest integer to it. If the number is equidistant
// from two integers, round it away from zero.
// Examples
// Note:
// Rounding away from zero means that if the given number is equidistant
// from two integers, the one you should return is the one that is the
// farthest from zero. For example closest_integer("14.5") should
// return 15 and closest_integer("-14.5") should return -15.
// closestInteger(value: "10") == 10
// closestInteger(value: "15.3") == 15
func closestInteger(value: String) -> Int {
    // your code here
    let number = Double(value)
    var closest = Int(number)
    var diff = abs(number - Double(closest))
    for i in 1...9 {
        let newNumber = Double(closest) + Double(i)
        let newDiff = abs(number - Double(newNumber))
        if newDiff < diff {
            diff = newDiff
            closest = Int(newNumber)
        }
    }
    return closest
}
<|file_separator|>
var closest = Int(number) // value of optional type 'Double?' must be unwrapped to a value of type 'Double'
var diff = abs(number - Double(closest)) // value of optional type 'Double?' must be unwrapped to a value of type 'Double'
let newDiff = abs(number - Double(newNumber)) // value of optional type 'Double?' must be unwrapped to a value of type 'Double'

func closestInteger(value: String) -> Int {
    let number = Double(value) ?? 0
    let rounded = Int(number.rounded())
    return rounded
}
```swift
// Create a function that takes a value (string) representing a number
// and returns the closest integer to it. If the number is equidistant
// from two integers, round it away from zero.
// Examples
// Note:
// Rounding away from zero means that if the given number is equidistant
// from two integers, the one you should return is the one that is the
// farthest from zero. For example closest_integer("14.5") should
// return 15 and closest_integer("-14.5") should return -15.
// closestInteger(value: "10") == 10
// closestInteger(value: "15.3") == 15
func closestInteger(value: String) -> Int {
    let number = Double(value) ?? 0
    let rounded = Int(number.rounded())
    return rounded
}
<|file_separator|>```

func closestInteger(value: String) -> Int {
    let value = Double(value) ?? 0
    let rounded = round(value)
    let diff = abs(rounded - value)
    let diff2 = abs(rounded - value - 1)
    if diff < diff2 {
        return Int(rounded)
    }
    return Int(rounded - 1)
}
```swift
// Create a function that takes a value (string) representing a number
// and returns the closest integer to it. If the number is equidistant
// from two integers, round it away from zero.
// Examples
// Note:
// Rounding away from zero means that if the given number is equidistant
// from two integers, the one you should return is the one that is the
// farthest from zero. For example closest_integer("14.5") should
// return 15 and closest_integer("-14.5") should return -15.
// closestInteger(value: "10") == 10
// closestInteger(value: "15.3") == 15
func closestInteger(value: String) -> Int {
    let value = Double(value) ?? 0
    let rounded = round(value)
    let diff = abs(rounded - value)
    let diff2 = abs(rounded - value - 1)
    if diff < diff2 {
        return Int(rounded)
    }
    return Int(rounded - 1)
}
<|file_separator|>```
 // XCTAssertTrue failed

```swift
// Create a function that takes a value (string) representing a number
// and returns the closest integer to it. If the number is equidistant
// from two integers, round it away from zero.
// Examples
// Note:
// Rounding away from zero means that if the given number is equidistant
// from two integers, the one you should return is the one that is the
// farthest from zero. For example closest_integer("14.5") should
// return 15 and closest_integer("-14.5") should return -15.
// closestInteger(value: "10") == 10
// closestInteger(value: "15.3") == 15
func closestInteger(value: String) -> Int {
    // Write your code here
    let valueDouble = Double(value)!
    let valueInt = Int(valueDouble)
    let valueDouble2 = Double(valueInt)
    let valueDouble3 = Double(valueDouble)
    let valueDouble4 = Double(valueDouble2)
    let valueDouble5 = Double(valueDouble3)
    let valueDouble6 = Double(valueDouble4)
    let valueDouble7 = Double(valueDouble5)
    let valueDouble8 = Double(valueDouble6)
    let valueDouble9 = Double(valueDouble7)
    let valueDouble10 = Double(valueDouble8)
    let valueDouble11 = Double(valueDouble9)
    let valueDouble12 = Double(valueDouble10)
    let valueDouble13 = Double(valueDouble11)
    let valueDouble14 = Double(valueDouble12)
    let valueDouble15 = Double(valueDouble13)
    let valueDouble16 = Double(valueDouble14)
    let valueDouble17 = Double(valueDouble15)
    let valueDouble18 = Double(valueDouble16)
    let valueDouble19 = Double(valueDouble17)
    let valueDouble20 = Double(valueDouble18)
    let valueDouble21 = Double(valueDouble19)
    let valueDouble22 = Double(valueDouble20)
    let valueDouble23 = Double(valueDouble21)
    let valueDouble24 = Double(valueDouble22)
    let valueDouble25 = Double(valueDouble23)
    let valueDouble26 = Double(valueDouble24)
    let valueDouble27 = Double(valueDouble25)
    let valueDouble28 = Double(valueDouble26)
    let valueDouble29 = Double(valueDouble27)
    let valueDouble30 = Double(valueDouble28)
    let valueDouble31 = Double(valueDouble29)
    let valueDouble32 = Double(valueDouble30)
    let valueDouble33 = Double(valueDouble31)
    let valueDouble34 = Double(valueDouble32)
    let valueDouble35 = Double(valueDouble33)
    let valueDouble36 = Double(valueDouble34)
    let valueDouble37 = Double(valueDouble35)
    let valueDouble38 = Double(valueDouble36)
    let valueDouble39 = Double(valueDouble37)
    let valueDouble40 = Double(valueDouble38)
    let valueDouble41 = Double(valueDouble39)
    let valueDouble42 = Double(valueDouble40)
    let valueDouble43 = Double(valueDouble41)
    let valueDouble44 = Double(valueDouble42)
    let valueDouble45 = Double(valueDouble43)
    let valueDouble46 = Double(valueDouble44)
    let valueDouble47 = Double(valueDouble45)
    let valueDouble48 = Double(valueDouble46)
    let valueDouble49 = Double(valueDouble47)
    let valueDouble50 = Double(valueDouble48)
    let valueDouble51 = Double(valueDouble49)
    let valueDouble52 = Double(valueDouble50)
    let valueDouble53 = Double(valueDouble51)
    let valueDouble54 = Double(valueDouble52)
    let valueDouble55 = Double(valueDouble53)
    let valueDouble56 = Double(valueDouble54)
    let valueDouble57 = Double(valueDouble55)
    let valueDouble58 = Double(valueDouble56)
    let valueDouble59 = Double(valueDouble57)
    let valueDouble60 = Double(valueDouble58)
    let valueDouble61 = Double(valueDouble59)
    let valueDouble62 = Double(valueDouble60)
    let valueDouble63 = Double(valueDouble61)
    let valueDouble64 = Double(valueDouble62)
    let valueDouble65 = Double(valueDouble63)
    let valueDouble66 = Double(valueDouble64)
    let valueDouble67 = Double(valueDouble65)
    let valueDouble68 = Double(valueDouble66)
    let valueDouble69 = Double(value
XCTAssertTrue(closestInteger(value: "10") == 10) // cannot find 'closestInteger' in scope
XCTAssertTrue(closestInteger(value: "14.5") == 15) // cannot find 'closestInteger' in scope
XCTAssertTrue(closestInteger(value: "-15.5") == -16) // cannot find 'closestInteger' in scope
XCTAssertTrue(closestInteger(value: "15.3") == 15) // cannot find 'closestInteger' in scope
XCTAssertTrue(closestInteger(value: "0") == 0) // cannot find 'closestInteger' in scope

func closestInteger(value: String) -> Int {
    // Write your code here
    let value = Double(value) ?? 0
    let rounded = Int(value.rounded())
    let diff1 = abs(value - Double(rounded))
    let diff2 = abs(value - Double(rounded + 1))
    if diff1 < diff2 {
        return rounded
    } else {
        return rounded + 1
    }
}
```swift
// Create a function that takes a value (string) representing a number
// and returns the closest integer to it. If the number is equidistant
// from two integers, round it away from zero.
// Examples
// Note:
// Rounding away from zero means that if the given number is equidistant
// from two integers, the one you should return is the one that is the
// farthest from zero. For example closest_integer("14.5") should
// return 15 and closest_integer("-14.5") should return -15.
// closestInteger(value: "10") == 10
// closestInteger(value: "15.3") == 15
func closestInteger(value: String) -> Int {
    // Write your code here
    let value = Double(value) ?? 0
    let rounded = Int(value.rounded())
    let diff1 = abs(value - Double(rounded))
    let diff2 = abs(value - Double(rounded + 1))
    if diff1 < diff2 {
        return rounded
    } else {
        return rounded + 1
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func closestInteger(value: String) -> Int {
    let value = Double(value) ?? 0
    let rounded = Int(value.rounded())
    let diff = abs(value - Double(rounded))
    let diff2 = abs(Double(rounded) - value)
    if diff < diff2 {
        return rounded
    } else {
        return -rounded
    }
}
```swift
// Create a function that takes a value (string) representing a number
// and returns the closest integer to it. If the number is equidistant
// from two integers, round it away from zero.
// Examples
// Note:
// Rounding away from zero means that if the given number is equidistant
// from two integers, the one you should return is the one that is the
// farthest from zero. For example closest_integer("14.5") should
// return 15 and closest_integer("-14.5") should return -15.
// closestInteger(value: "10") == 10
// closestInteger(value: "15.3") == 15
func closestInteger(value: String) -> Int {
    let value = Double(value) ?? 0
    let rounded = Int(value.rounded())
    let diff = abs(value - Double(rounded))
    let diff2 = abs(Double(rounded) - value)
    if diff < diff2 {
        return rounded
    } else {
        return -rounded
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func closestInteger(value: String) -> Int {
    let number = Double(value) ?? 0
    let rounded = Int(number.rounded())
    let diff = abs(number - Double(rounded))
    let diff2 = abs(Double(rounded + 1) - number)
    if diff < diff2 {
        return rounded
    } else {
        return rounded + 1
    }
}
```swift
// Create a function that takes a value (string) representing a number
// and returns the closest integer to it. If the number is equidistant
// from two integers, round it away from zero.
// Examples
// Note:
// Rounding away from zero means that if the given number is equidistant
// from two integers, the one you should return is the one that is the
// farthest from zero. For example closest_integer("14.5") should
// return 15 and closest_integer("-14.5") should return -15.
// closestInteger(value: "10") == 10
// closestInteger(value: "15.3") == 15
func closestInteger(value: String) -> Int {
    let number = Double(value) ?? 0
    let rounded = Int(number.rounded())
    let diff = abs(number - Double(rounded))
    let diff2 = abs(Double(rounded + 1) - number)
    if diff < diff2 {
        return rounded
    } else {
        return rounded + 1
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func closestInteger(value: String) -> Int {
    // Write your code here
    let value = Double(value) ?? 0
    let rounded = Int(value.rounded())
    return rounded
}
```swift
// Create a function that takes a value (string) representing a number
// and returns the closest integer to it. If the number is equidistant
// from two integers, round it away from zero.
// Examples
// Note:
// Rounding away from zero means that if the given number is equidistant
// from two integers, the one you should return is the one that is the
// farthest from zero. For example closest_integer("14.5") should
// return 15 and closest_integer("-14.5") should return -15.
// closestInteger(value: "10") == 10
// closestInteger(value: "15.3") == 15
func closestInteger(value: String) -> Int {
    // Write your code here
    let value = Double(value) ?? 0
    let rounded = Int(value.rounded())
    return rounded
}
<|file_separator|>

func closestInteger(value: String) -> Int {
  let number = Double(value) ?? 0
  let rounded = Int(number.rounded())
  return rounded
}
```swift
// Create a function that takes a value (string) representing a number
// and returns the closest integer to it. If the number is equidistant
// from two integers, round it away from zero.
// Examples
// Note:
// Rounding away from zero means that if the given number is equidistant
// from two integers, the one you should return is the one that is the
// farthest from zero. For example closest_integer("14.5") should
// return 15 and closest_integer("-14.5") should return -15.
// closestInteger(value: "10") == 10
// closestInteger(value: "15.3") == 15
func closestInteger(value: String) -> Int {
  let number = Double(value) ?? 0
  let rounded = Int(number.rounded())
  return rounded
}
<|file_separator|>

func closestInteger(value: String) -> Int {
    // Write your code here
    var value = value
    let index = value.index(value.startIndex, offsetBy: 1)
    let first = value[value.startIndex]
    let second = value[index]
    if first == "-" {
        value = value.replacingOccurrences(of: "-", with: "")
    }
    if second == "." {
        value = value.replacingOccurrences(of: ".", with: "")
    }
    let number = Int(value)!
    let absNumber = abs(number)
    let absNumber2 = abs(number - 1)
    let absNumber3 = abs(number + 1)
    if absNumber == absNumber2 || absNumber == absNumber3 {
        return number
    }
    if absNumber < absNumber2 {
        return number
    }
    if absNumber > absNumber2 {
        return number - 1
    }
    if absNumber < absNumber3 {
        return number
    }
    if absNumber > absNumber3 {
        return number + 1
    }
    return 0
}
```swift
// Create a function that takes a value (string) representing a number
// and returns the closest integer to it. If the number is equidistant
// from two integers, round it away from zero.
// Examples
// Note:
// Rounding away from zero means that if the given number is equidistant
// from two integers, the one you should return is the one that is the
// farthest from zero. For example closest_integer("14.5") should
// return 15 and closest_integer("-14.5") should return -15.
// closestInteger(value: "10") == 10
// closestInteger(value: "15.3") == 15
func closestInteger(value: String) -> Int {
    // Write your code here
    var value = value
    let index = value.index(value.startIndex, offsetBy: 1)
    let first = value[value.startIndex]
    let second = value[index]
    if first == "-" {
        value = value.replacingOccurrences(of: "-", with: "")
    }
    if second == "." {
        value = value.replacingOccurrences(of: ".", with: "")
    }
    let number = Int(value)!
    let absNumber = abs(number)
    let absNumber2 = abs(number - 1)
    let absNumber3 = abs(number + 1)
    if absNumber == absNumber2 || absNumber == absNumber3 {
        return number
    }
    if absNumber < absNumber2 {
        return number
    }
    if absNumber > absNumber2 {
        return number - 1
    }
    if absNumber < absNumber3 {
        return number
    }
    if absNumber > absNumber3 {
        return number + 1
    }
    return 0
}
<|file_separator|>
 // XCTAssertTrue failed

func makeAPile(n: Int) -> [Int] {
    var stones = [Int]()
    var odd = 1
    var even = 2
    for _ in 0..<n {
        if n % 2 == 0 {
            stones.append(even)
            even += 2
        } else {
            stones.append(odd)
            odd += 2
        }
    }
    return stones
}
```swift
// Given a positive integer n, you have to make a pile of n levels of stones.
// The first level has n stones.
// The number of stones in the next level is:
// - the next odd number if n is odd.
// - the next even number if n is even.
// Return the number of stones in each level in an array, where element at index
// i represents the number of stones in the level (i+1).
// Examples:
// makeAPile(n: 3) == [3, 5, 7]
func makeAPile(n: Int) -> [Int] {
    var stones = [Int]()
    var odd = 1
    var even = 2
    for _ in 0..<n {
        if n % 2 == 0 {
            stones.append(even)
            even += 2
        } else {
            stones.append(odd)
            odd += 2
        }
    }
    return stones
}
<|file_separator|>```
 // XCTAssertTrue failed

func makeAPile(n: Int) -> [Int] {
  var result = [Int]()
  var i = 1
  while i <= n {
    result.append(i)
    i += 2
  }
  return result
}
```swift
// Given a positive integer n, you have to make a pile of n levels of stones.
// The first level has n stones.
// The number of stones in the next level is:
// - the next odd number if n is odd.
// - the next even number if n is even.
// Return the number of stones in each level in an array, where element at index
// i represents the number of stones in the level (i+1).
// Examples:
// makeAPile(n: 3) == [3, 5, 7]
func makeAPile(n: Int) -> [Int] {
  var result = [Int]()
  var i = 1
  while i <= n {
    result.append(i)
    i += 2
  }
  return result
}
<|file_separator|>```
 // XCTAssertTrue failed

func makeAPile(n: Int) -> [Int] {
    var stones = [Int]()
    var odd = 1
    var even = 2
    for _ in 1...n {
        if n % 2 == 0 {
            stones.append(even)
            even += 2
        } else {
            stones.append(odd)
            odd += 2
        }
    }
    return stones
}
```swift
// Given a positive integer n, you have to make a pile of n levels of stones.
// The first level has n stones.
// The number of stones in the next level is:
// - the next odd number if n is odd.
// - the next even number if n is even.
// Return the number of stones in each level in an array, where element at index
// i represents the number of stones in the level (i+1).
// Examples:
// makeAPile(n: 3) == [3, 5, 7]
func makeAPile(n: Int) -> [Int] {
    var stones = [Int]()
    var odd = 1
    var even = 2
    for _ in 1...n {
        if n % 2 == 0 {
            stones.append(even)
            even += 2
        } else {
            stones.append(odd)
            odd += 2
        }
    }
    return stones
}
<|file_separator|>```
 // XCTAssertTrue failed

func makeAPile(n: Int) -> [Int] {
    var result = [Int]()
    var odd = 1
    var even = 2
    for _ in 0..<n {
        if odd > n {
            odd = even
        }
        if even > n {
            even = odd
        }
        result.append(odd)
        odd += 2
        even += 2
    }
    return result
}
```swift
// Given a positive integer n, you have to make a pile of n levels of stones.
// The first level has n stones.
// The number of stones in the next level is:
// - the next odd number if n is odd.
// - the next even number if n is even.
// Return the number of stones in each level in an array, where element at index
// i represents the number of stones in the level (i+1).
// Examples:
// makeAPile(n: 3) == [3, 5, 7]
func makeAPile(n: Int) -> [Int] {
    var result = [Int]()
    var odd = 1
    var even = 2
    for _ in 0..<n {
        if odd > n {
            odd = even
        }
        if even > n {
            even = odd
        }
        result.append(odd)
        odd += 2
        even += 2
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func makeAPile(n: Int) -> [Int] {
    var result = [Int]()
    var current = n
    while current > 0 {
        result.append(current)
        current = current % 2 == 0 ? current + 1 : current + 2
    }
    return result
}
```swift
// Given a positive integer n, you have to make a pile of n levels of stones.
// The first level has n stones.
// The number of stones in the next level is:
// - the next odd number if n is odd.
// - the next even number if n is even.
// Return the number of stones in each level in an array, where element at index
// i represents the number of stones in the level (i+1).
// Examples:
// makeAPile(n: 3) == [3, 5, 7]
func makeAPile(n: Int) -> [Int] {
    var result = [Int]()
    var current = n
    while current > 0 {
        result.append(current)
        current = current % 2 == 0 ? current + 1 : current + 2
    }
    return result
}
<|file_separator|>

func makeAPile(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num > 0 {
        result.append(num)
        num = (num % 2 == 0) ? num + 1 : num + 2
    }
    return result
}
```swift
// Given a positive integer n, you have to make a pile of n levels of stones.
// The first level has n stones.
// The number of stones in the next level is:
// - the next odd number if n is odd.
// - the next even number if n is even.
// Return the number of stones in each level in an array, where element at index
// i represents the number of stones in the level (i+1).
// Examples:
// makeAPile(n: 3) == [3, 5, 7]
func makeAPile(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num > 0 {
        result.append(num)
        num = (num % 2 == 0) ? num + 1 : num + 2
    }
    return result
}
<|file_separator|>

func makeAPile(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num > 0 {
        result.append(num)
        num = num + 1
        if num % 2 == 0 {
            num = num + 1
        }
    }
    return result
}

func makeAPile(n: Int) -> Int {
    var result = 0
    var num = n
    while num > 0 {
        result = result + 1
        num = num - 1
        if num % 2 == 0 {
            num = num + 1
        }
    }
    return result
}
```swift
// Given a positive integer n, you have to make a pile of n levels of stones.
// The first level has n stones.
// The number of stones in the next level is:
// - the next odd number if n is odd.
// - the next even number if n is even.
// Return the number of stones in each level in an array, where element at index
// i represents the number of stones in the level (i+1).
// Examples:
// makeAPile(n: 3) == [3, 5, 7]
func makeAPile(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num > 0 {
        result.append(num)
        num = num + 1
        if num % 2 == 0 {
            num = num + 1
        }
    }
    return result
}

// Given a positive integer n, return the number of ways you can make a pile of n
// levels of stones.
// Examples:
// makeAPile(n: 3) == 4
// makeAPile(n: 4) == 7
func makeAPile(n: Int) -> Int {
    var result = 0
    var num = n
    while num > 0 {
        result = result + 1
        num = num - 1
        if num % 2 == 0 {
            num = num + 1
        }
    }
    return result
}

// Given a positive integer n, return the number of ways you can make a pile of n
// levels of stones.
// Examples:
// makeAPile(n: 3) == 4
// makeAPile(n: 4) == 7
func makeAPile(n: Int) -> Int {
    var result = 0
    var num = n
    while num > 0 {
        result = result + 1
        num = num - 1
        if num % 2 == 0 {
            num = num + 1
        }
    }
    return result
}

// Given a positive integer n, return the number of ways you can make a pile of n
// levels of stones.
// Examples:
// makeAPile(n: 3) == 4
// makeAPile(n: 4) == 7
func makeAPile(n: Int) -> Int {
    var result = 0
    var num = n
    while num > 0 {
        result = result + 1
        num = num - 1
        if num % 2 == 0 {
            num = num + 1
        }
    }
    return result
}

// Given a positive integer n, return the number of ways you can make a pile of n
// levels of stones.
// Examples:
// makeAPile(n: 3) == 4
// makeAPile(n: 4) == 7
func makeAPile(n: Int) -> Int {
    var result = 0
    var num = n
    while num > 0 {
        result = result + 1
        num = num - 1
        if num % 2 == 0 {
            num = num + 1
        }
    }
    return result
}

// Given a positive integer n, return the number of ways you can make a pile of n
// levels of stones.
// Examples:
// makeAPile(n: 3) == 4
// makeAPile(n: 4) == 7
func makeAPile(n: Int) -> Int {
    var result = 0
    var num = n
    while num > 0 {
        result = result + 1
        num = num - 1
        if num % 2 == 0 {
            num = num + 1
        }
    }
    return result
}

// Given a positive integer n, return the number of ways you can make a pile of n
// levels of stones.
// Examples:
// makeAPile(n: 3) == 4
// makeAPile(n: 4) == 7
func makeAPile(n: Int) -> Int {
    var result = 0
    var num = n
    while num > 0 {
        result = result + 1
        num = num - 1
        if num % 2 == 0 {
            num = num + 1
        }
    }
    return result
}

// Given a positive integer n, return the number of ways you can make a pile of n
// levels of stones.
// Examples:
// makeAPile(n: 3) == 4
// makeAPile(n: 4) == 7
func makeAPile(n: Int) -> Int {
    var result = 0
    var num = n
    while num > 0 {
        result = result + 1
        num = num - 1
        if num % 2 == 0 {
            

func makeAPile(n: Int) -> [Int] {
  var stones = [Int]()
  var num = n
  while num > 0 {
    stones.append(num)
    num = num + 1
    if num % 2 == 0 {
      num = num + 1
    }
  }
  return stones
}
```swift
// Given a positive integer n, you have to make a pile of n levels of stones.
// The first level has n stones.
// The number of stones in the next level is:
// - the next odd number if n is odd.
// - the next even number if n is even.
// Return the number of stones in each level in an array, where element at index
// i represents the number of stones in the level (i+1).
// Examples:
// makeAPile(n: 3) == [3, 5, 7]
func makeAPile(n: Int) -> [Int] {
  var stones = [Int]()
  var num = n
  while num > 0 {
    stones.append(num)
    num = num + 1
    if num % 2 == 0 {
      num = num + 1
    }
  }
  return stones
}
<|file_separator|>

func makeAPile(n: Int) -> [Int] {
  var result = [Int]()
  var num = n
  while num > 0 {
    result.append(num)
    num = num % 2 == 0 ? num + 2 : num + 1
  }
  return result
}
```swift
// Given a positive integer n, you have to make a pile of n levels of stones.
// The first level has n stones.
// The number of stones in the next level is:
// - the next odd number if n is odd.
// - the next even number if n is even.
// Return the number of stones in each level in an array, where element at index
// i represents the number of stones in the level (i+1).
// Examples:
// makeAPile(n: 3) == [3, 5, 7]
func makeAPile(n: Int) -> [Int] {
  var result = [Int]()
  var num = n
  while num > 0 {
    result.append(num)
    num = num % 2 == 0 ? num + 2 : num + 1
  }
  return result
}
<|file_separator|>

func makeAPile(n: Int) -> [Int] {
    var result = [Int]()
    var current = n
    while current > 0 {
        result.append(current)
        current = current % 2 == 0 ? current + 2 : current + 1
    }
    return result
}
```swift
// Given a positive integer n, you have to make a pile of n levels of stones.
// The first level has n stones.
// The number of stones in the next level is:
// - the next odd number if n is odd.
// - the next even number if n is even.
// Return the number of stones in each level in an array, where element at index
// i represents the number of stones in the level (i+1).
// Examples:
// makeAPile(n: 3) == [3, 5, 7]
func makeAPile(n: Int) -> [Int] {
    var result = [Int]()
    var current = n
    while current > 0 {
        result.append(current)
        current = current % 2 == 0 ? current + 2 : current + 1
    }
    return result
}
<|file_separator|>

func wordsString(s: String) -> [String] {
    return s.components(separatedBy: CharacterSet(charactersIn: ", "))
}
```swift
// You will be given a string of words separated by commas or spaces. Your task is
// to split the string into words and return an array of the words.
// For example:
// wordsString(s: "Hi, my name is John") == ["Hi", "my", "name", "is", "John"]
// wordsString(s: "One, two, three, four, five, six") == ["One", "two", "three", "four", "five", "six"]
func wordsString(s: String) -> [String] {
    return s.components(separatedBy: CharacterSet(charactersIn: ", "))
}
<|file_separator|>
 // XCTAssertTrue failed

func wordsString(s: String) -> [String] {
    return s.components(separatedBy: ", ")
}
```swift
// You will be given a string of words separated by commas or spaces. Your task is
// to split the string into words and return an array of the words.
// For example:
// wordsString(s: "Hi, my name is John") == ["Hi", "my", "name", "is", "John"]
// wordsString(s: "One, two, three, four, five, six") == ["One", "two", "three", "four", "five", "six"]
func wordsString(s: String) -> [String] {
    return s.components(separatedBy: ", ")
}
<|file_separator|>
 // XCTAssertTrue failed

func wordsString(s: String) -> [String] {
    var result = [String]()
    var word = ""
    for char in s {
        if char == "," || char == " " {
            if !word.isEmpty {
                result.append(word)
                word = ""
            }
        } else {
            word += String(char)
        }
    }
    if !word.isEmpty {
        result.append(word)
    }
    return result
}
```swift
// You will be given a string of words separated by commas or spaces. Your task is
// to split the string into words and return an array of the words.
// For example:
// wordsString(s: "Hi, my name is John") == ["Hi", "my", "name", "is", "John"]
// wordsString(s: "One, two, three, four, five, six") == ["One", "two", "three", "four", "five", "six"]
func wordsString(s: String) -> [String] {
    var result = [String]()
    var word = ""
    for char in s {
        if char == "," || char == " " {
            if !word.isEmpty {
                result.append(word)
                word = ""
            }
        } else {
            word += String(char)
        }
    }
    if !word.isEmpty {
        result.append(word)
    }
    return result
}
<|file_separator|>

func wordsString(s: String) -> [String] {
    return s.components(separatedBy: ", ")
}
```swift
// You will be given a string of words separated by commas or spaces. Your task is
// to split the string into words and return an array of the words.
// For example:
// wordsString(s: "Hi, my name is John") == ["Hi", "my", "name", "is", "John"]
// wordsString(s: "One, two, three, four, five, six") == ["One", "two", "three", "four", "five", "six"]
func wordsString(s: String) -> [String] {
    return s.components(separatedBy: ", ")
}
<|file_separator|>
 // XCTAssertTrue failed

func wordsString(s: String) -> [String] {
    return s.components(separatedBy: CharacterSet(charactersIn: ", "))
}
```swift
// You will be given a string of words separated by commas or spaces. Your task is
// to split the string into words and return an array of the words.
// For example:
// wordsString(s: "Hi, my name is John") == ["Hi", "my", "name", "is", "John"]
// wordsString(s: "One, two, three, four, five, six") == ["One", "two", "three", "four", "five", "six"]
func wordsString(s: String) -> [String] {
    return s.components(separatedBy: CharacterSet(charactersIn: ", "))
}
<|file_separator|>
 // XCTAssertTrue failed

func wordsString(s: String) -> [String] {
    let words = s.components(separatedBy: ",")
    return words
}
```swift
// You will be given a string of words separated by commas or spaces. Your task is
// to split the string into words and return an array of the words.
// For example:
// wordsString(s: "Hi, my name is John") == ["Hi", "my", "name", "is", "John"]
// wordsString(s: "One, two, three, four, five, six") == ["One", "two", "three", "four", "five", "six"]
func wordsString(s: String) -> [String] {
    let words = s.components(separatedBy: ",")
    return words
}
<|file_separator|>
 // XCTAssertTrue failed

func wordsString(s: String) -> [String] {
    return s.components(separatedBy: ", ")
}
```swift
// You will be given a string of words separated by commas or spaces. Your task is
// to split the string into words and return an array of the words.
// For example:
// wordsString(s: "Hi, my name is John") == ["Hi", "my", "name", "is", "John"]
// wordsString(s: "One, two, three, four, five, six") == ["One", "two", "three", "four", "five", "six"]
func wordsString(s: String) -> [String] {
    return s.components(separatedBy: ", ")
}
<|file_separator|>
 // XCTAssertTrue failed

func wordsString(s: String) -> [String] {
    return s.split(separator: " ").map { String($0) }
}
```swift
// You will be given a string of words separated by commas or spaces. Your task is
// to split the string into words and return an array of the words.
// For example:
// wordsString(s: "Hi, my name is John") == ["Hi", "my", "name", "is", "John"]
// wordsString(s: "One, two, three, four, five, six") == ["One", "two", "three", "four", "five", "six"]
func wordsString(s: String) -> [String] {
    return s.split(separator: " ").map { String($0) }
}
<|file_separator|>
 // XCTAssertTrue failed

func wordsString(s: String) -> [String] {
    return s.components(separatedBy: CharacterSet.whitespacesAndNewlines)
}
```swift
// You will be given a string of words separated by commas or spaces. Your task is
// to split the string into words and return an array of the words.
// For example:
// wordsString(s: "Hi, my name is John") == ["Hi", "my", "name", "is", "John"]
// wordsString(s: "One, two, three, four, five, six") == ["One", "two", "three", "four", "five", "six"]
func wordsString(s: String) -> [String] {
    return s.components(separatedBy: CharacterSet.whitespacesAndNewlines)
}
<|file_separator|>
 // XCTAssertTrue failed

func wordsString(s: String) -> [String] {
    return s.components(separatedBy: ", ")
}
```swift
// You will be given a string of words separated by commas or spaces. Your task is
// to split the string into words and return an array of the words.
// For example:
// wordsString(s: "Hi, my name is John") == ["Hi", "my", "name", "is", "John"]
// wordsString(s: "One, two, three, four, five, six") == ["One", "two", "three", "four", "five", "six"]
func wordsString(s: String) -> [String] {
    return s.components(separatedBy: ", ")
}
<|file_separator|>
 // XCTAssertTrue failed

func chooseNum(x: Int, y: Int) -> Int {
    var maxEven = -1
    for i in x...y {
        if i % 2 == 0 {
            maxEven = i
        }
    }
    return maxEven
}

func countVowels(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}

func countConsonants(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        } else {
            count += 1
        }
    }
    return count
}

func countWords(str: String) -> Int {
    var count = 0
    var word = ""
    for char in str {
        if char == " " {
            count += 1
        } else {
            word += char
        }
    }
    return count
}

func countDigits(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "0" || char == "1" || char == "2" || char == "3" || char == "4" || char == "5" || char == "6" || char == "7" || char == "8" || char == "9" {
            count += 1
        }
    }
    return count
}

func countSpaces(str: String) -> Int {
    var count = 0
    for char in str {
        if char == " " {
            count += 1
        }
    }
    return count
}

func countUppercase(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "A" || char == "B" || char == "C" || char == "D" || char == "E" || char == "F" || char == "G" || char == "H" || char == "I" || char == "J" || char == "K" || char == "L" || char == "M" || char == "N" || char == "O" || char == "P" || char == "Q" || char == "R" || char == "S" || char == "T" || char == "U" || char == "V" || char == "W" || char == "X" || char == "Y" || char == "Z" {
            count += 1
        }
    }
    return count
}
```swift
// This function takes two positive numbers x and y and returns the
// biggest even integer number that is in the range [x, y] inclusive. If 
// there's no such number, then the function should return -1.
// For example:
// chooseNum(x: 12, y: 15) == 14
// chooseNum(x: 13, y: 12) == -1
func chooseNum(x: Int, y: Int) -> Int {
    var maxEven = -1
    for i in x...y {
        if i % 2 == 0 {
            maxEven = i
        }
    }
    return maxEven
}

// This function takes a string and returns the number of vowels in it.
// For example:
// countVowels("Hello, world!") == 3
// countVowels("Hello, world! This is a test.") == 5
func countVowels(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        }
    }
    return count
}

// This function takes a string and returns the number of consonants in it.
// For example:
// countConsonants("Hello, world!") == 20
// countConsonants("Hello, world! This is a test.") == 15
func countConsonants(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            count += 1
        } else {
            count += 1
        }
    }
    return count
}

// This function takes a string and returns the number of words in it.
// For example:
// countWords("Hello, world!") == 2
// countWords("Hello, world! This is a test.") == 4
func countWords(str: String) -> Int {
    var count = 0
    var word = ""
    for char in str {
        if char == " " {
            count += 1
        } else {
            word += char
        }
    }
    return count
}

// This function takes a string and returns the number of digits in it.
// For example:
// countDigits("Hello, world!") == 0
// countDigits("Hello, world! This is a test.") == 3
func countDigits(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "0" || char == "1" || char == "2" || char == "3" || char == "4" || char == "5" || char == "6" || char == "7" || char == "8" || char == "9" {
            count += 1
        }
    }
    return count
}

// This function takes a string and returns the number of spaces in it.
// For example:
// countSpaces("Hello, world!") == 0
// countSpaces("Hello, world! This is a test.") == 1
func countSpaces(str: String) -> Int {
    var count = 0
    for char in str {
        if char == " " {
            count += 1
        }
    }
    return count
}

// This function takes a string and returns the number of uppercase letters in it.
// For example:
// countUppercase("Hello, world!") == 0
// countUppercase("Hello, world! This is a test.") == 3
func countUppercase(str: String) -> Int {
    var count = 0
    for char in str {
        if char == "A" || char == "B" || char == "C" || char == "D" || char == "E" || char == "F" || char == "G" || char == "H" || char == "I" || char == "J" || char == "K" || char == "L" || char == "M" || char == "N" || char == "O" || char == "P" || char == "Q" || char == "R" || char == "S" || char == "T" || char == "U" || char == "V" || char == "W" || char == "X" || char == "Y" || char == "Z" {
            count += 1
        }
    }
    return count
}

// This function takes a string and returns the number of lowercase letters in it.
// For example:
// countLowercase("Hello, world!") == 0
// countLowercase("Hello, world! This is a test.") == 7
func countLowercase(str: String) -> Int {
word += char // cannot convert value of type 'Character' to expected argument type 'String'

func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 && i > result {
            result = i
        }
    }
    return result
}
```swift
// This function takes two positive numbers x and y and returns the
// biggest even integer number that is in the range [x, y] inclusive. If 
// there's no such number, then the function should return -1.
// For example:
// chooseNum(x: 12, y: 15) == 14
// chooseNum(x: 13, y: 12) == -1
func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 && i > result {
            result = i
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
        }
    }
    return result
}
```swift
// This function takes two positive numbers x and y and returns the
// biggest even integer number that is in the range [x, y] inclusive. If 
// there's no such number, then the function should return -1.
// For example:
// chooseNum(x: 12, y: 15) == 14
// chooseNum(x: 13, y: 12) == -1
func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 && i > result {
            result = i
        }
    }
    return result
}
```swift
// This function takes two positive numbers x and y and returns the
// biggest even integer number that is in the range [x, y] inclusive. If 
// there's no such number, then the function should return -1.
// For example:
// chooseNum(x: 12, y: 15) == 14
// chooseNum(x: 13, y: 12) == -1
func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 && i > result {
            result = i
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 && i > result {
            result = i
        }
    }
    return result
}
```swift
// This function takes two positive numbers x and y and returns the
// biggest even integer number that is in the range [x, y] inclusive. If 
// there's no such number, then the function should return -1.
// For example:
// chooseNum(x: 12, y: 15) == 14
// chooseNum(x: 13, y: 12) == -1
func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 && i > result {
            result = i
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
        }
    }
    return result
}
```swift
// This function takes two positive numbers x and y and returns the
// biggest even integer number that is in the range [x, y] inclusive. If 
// there's no such number, then the function should return -1.
// For example:
// chooseNum(x: 12, y: 15) == 14
// chooseNum(x: 13, y: 12) == -1
func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
        }
    }
    return result
}
```swift
// This function takes two positive numbers x and y and returns the
// biggest even integer number that is in the range [x, y] inclusive. If 
// there's no such number, then the function should return -1.
// For example:
// chooseNum(x: 12, y: 15) == 14
// chooseNum(x: 13, y: 12) == -1
func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
        }
    }
    return result
}
```swift
// This function takes two positive numbers x and y and returns the
// biggest even integer number that is in the range [x, y] inclusive. If 
// there's no such number, then the function should return -1.
// For example:
// chooseNum(x: 12, y: 15) == 14
// chooseNum(x: 13, y: 12) == -1
func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
        }
    }
    return result
}
```swift
// This function takes two positive numbers x and y and returns the
// biggest even integer number that is in the range [x, y] inclusive. If 
// there's no such number, then the function should return -1.
// For example:
// chooseNum(x: 12, y: 15) == 14
// chooseNum(x: 13, y: 12) == -1
func chooseNum(x: Int, y: Int) -> Int {
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func chooseNum(x: Int, y: Int) -> Int {
    // Write your code here
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
            break
        }
    }
    return result
}
```swift
// This function takes two positive numbers x and y and returns the
// biggest even integer number that is in the range [x, y] inclusive. If 
// there's no such number, then the function should return -1.
// For example:
// chooseNum(x: 12, y: 15) == 14
// chooseNum(x: 13, y: 12) == -1
func chooseNum(x: Int, y: Int) -> Int {
    // Write your code here
    var result = -1
    for i in x...y {
        if i % 2 == 0 {
            result = i
            break
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

extension Int: Error {

}

extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(n)
    }
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    return .success(String(avg, radix: 2))
}

func longestSubstring(s: String, k: Int) -> String {
    let chars = Array(s)
    var count = [Character: Int]()
    var max = 0
    var start = 0
    for i in 0..<chars.count {
        let char = chars[i]
        if let c = count[char] {
            count[char] = c + 1
        } else {
            count[char] = 1
        }
        while count.values.contains(k) {
            let c = chars[start]
            if let c = count[c] {
                count[c] = c - 1
            } else {
                count[c] = 0
            }
            start += 1
        }
        max = max(max, i - start + 1)
    }
    return String(chars[start..<start + max])
}
```swift
extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(n)
    }
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    return .success(String(avg, radix: 2))
}

// You are given a string s and an integer k.
// Return the longest substring of s that occurs at most k times.
// Example:
// longestSubstring(s: "abcabcbb", k: 2) == "bcb"
// longestSubstring(s: "abcabcbb", k: 3) == "abc"
// longestSubstring(s: "abcabcbb", k: 4) == "bca"
// longestSubstring(s: "abcabcbb", k: 5) == "bca"
func longestSubstring(s: String, k: Int) -> String {
    let chars = Array(s)
    var count = [Character: Int]()
    var max = 0
    var start = 0
    for i in 0..<chars.count {
        let char = chars[i]
        if let c = count[char] {
            count[char] = c + 1
        } else {
            count[char] = 1
        }
        while count.values.contains(k) {
            let c = chars[start]
            if let c = count[c] {
                count[c] = c - 1
            } else {
                count[c] = 0
            }
            start += 1
        }
        max = max(max, i - start + 1)
    }
    return String(chars[start..<start + max])
}

// You are given a string s and an integer k.
// Return the longest substring of s that occurs at most k times.
// Example:
// longestSubstring(s: "abcabcbb", k: 2) == "bcb"
// longestSubstring(s: "abcabcbb", k: 3) == "abc"
// longestSubstring(s: "abcabcbb", k: 4) == "bca"
// longestSubstring(s: "abcabcbb", k: 5) == "bca"
func longestSubstring(s: String, k: Int) -> String {
    let chars = Array(s)
    var count = [Character: Int]()
    var max = 0
    var start = 0
    for i in 0..<chars.count {
        let char = chars[i]
        if let c = count[char] {
            count[char] = c + 1
        } else {
            count[char] = 1
        }
        while count.values.contains(k) {
            let c = chars[start]
            if let c = count[c] {
                count[c] = c - 1
            } else {
                count[c] = 0
            }
            start += 1
        }
        max = max(max, i - start + 1)
    }
    return String(chars[start..<start + max])
}

// You are given a string s and an integer k.
// Return the longest substring of s that occurs at most k times.
// Example:
// longestSubstring(s: "abcabcbb", k: 2) == "bcb"
// longestSubstring(s: "abcabcbb", k: 3) == "abc"
// longestSubstring(s: "abcabcbb", k: 4) == "bca"
// longestSubstring(s: "abcabcbb", k: 5) == "bca"
func longestSubstring(s: String, k: Int) -> String {
    let chars = Array(s)
    var count = [Character: Int]()
    var max = 0
    var start = 0
    for i in 0..<chars.count {
        let char = chars[i]
        if let c = count[char] {
            count[char] = c + 1
        } else {
            count[char] = 1
        }
        while count.values.contains(k) {
            let c = chars[start]
            if let c = count[c] {
                count[c] = c - 1
            } else {
                count[c] = 0
            }
            start +=
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
count[c] = c - 1 // cannot convert value of type 'Int' to expected argument type 'Character'
max = max(max, i - start + 1) // cannot call value of non-function type 'Int'

extension Int: Error {

}

extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(n)
    }
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    return .success(String(avg, radix: 2))
}

func eval(s: String, nums: [Int], ops: [Int]) -> Int {
    var nums = nums
    var ops = ops
    var i = 0
    while i < s.count {
        if s[i] == "+" {
            nums[i] = nums[i] + nums[i + 1]
            nums.remove(at: i + 1)
            ops.remove(at: i)
            i -= 1
        } else if s[i] == "*" {
            nums[i] = nums[i] * nums[i + 1]
            nums.remove(at: i + 1)
            ops.remove(at: i)
            i -= 1
        }
        i += 1
    }
    return nums[0]
}
```swift
extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(n)
    }
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    return .success(String(avg, radix: 2))
}

// You are given a string s, which represents a mathematical expression.
// You are also given a list of integers nums, which represents the order of
// operations.
// You are also given a list of integers ops, which represents the order of
// operations.
// For example, if s = "2 + 3 * 5", nums = [2, 3, 5], and ops = [1, 2, 3],
// then the expression is "2 + 3 * 5", and the order of operations is
// "1 + 2 * 3".
// The expression is evaluated by multiplying the first two numbers in nums
// and adding the third number to the result.
// Return the result of the expression.
// Example:
// eval("2 + 3 * 5", [2, 3, 5], [1, 2, 3]) == 21
// eval("2 + 3 * 5", [2, 3, 5], [1, 2]) == 17
// eval("2 + 3 * 5", [2, 3, 5], [1, 2, 3]) == 21
// eval("2 + 3 * 5", [2, 3, 5], [1, 2, 3, 4]) == 17
func eval(s: String, nums: [Int], ops: [Int]) -> Int {
    var nums = nums
    var ops = ops
    var i = 0
    while i < s.count {
        if s[i] == "+" {
            nums[i] = nums[i] + nums[i + 1]
            nums.remove(at: i + 1)
            ops.remove(at: i)
            i -= 1
        } else if s[i] == "*" {
            nums[i] = nums[i] * nums[i + 1]
            nums.remove(at: i + 1)
            ops.remove(at: i)
            i -= 1
        }
        i += 1
    }
    return nums[0]
}

// You are given a string s, which represents a mathematical expression.
// You are also given a list of integers nums, which represents the order of
// operations.
// You are also given a list of integers ops, which represents the order of
// operations.
// For example, if s = "2 + 3 * 5", nums = [2, 3, 5], and ops = [1, 2, 3],
// then the expression is "2 + 3 * 5", and the order of operations is
// "1 + 2 * 3".
// The expression is evaluated by multiplying the first two numbers in nums
// and adding the third number to the result.
// Return the result of the expression.
// Example:
// eval("2 + 3 * 5", [2, 3, 5], [1, 2, 3]) == 21
// eval("2 + 3 * 5", [2, 3, 5], [1, 2]) == 17
// eval("2 + 3 * 5", [2, 3, 5], [1, 2, 3]) == 21
// eval("2 + 3 * 5", [2, 3, 5], [1, 2, 3, 4]) == 17
func eval(s: String, nums: [Int], ops: [Int]) -> Int {
    var nums = nums
    var ops = ops
    var i = 0
    while i < s.count {
        if s[i] == "+" {
            nums[i] = nums[i] + nums[i + 1]
            nums.remove(at: i + 1)
            ops.remove(at: i)
            i -= 1
        } else if s[i] == "*" {
            nums[i] = nums[i] * nums[i + 1]
            nums.remove(at: i + 1)
            ops.remove(at: i)
            i
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
if s[i] == "+" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
} else if s[i] == "*" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

extension Int: Error {

}

extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    guard n <= m else {
        return .failure(n)
    }
    let avg = (n + m) / 2
    return .success(String(avg, radix: 2))
}

func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().dropLast())
}
```swift
extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    guard n <= m else {
        return .failure(n)
    }
    let avg = (n + m) / 2
    return .success(String(avg, radix: 2))
}

// You are given a string s, and your task is to remove the first and last
// characters from it. Return the resulting string.
// Example:
// removeFirstAndLast("hello") == "ell"
// removeFirstAndLast("a") == "a"
func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().dropLast())
}

// You are given a string s, and your task is to remove the first and last
// characters from it. Return the resulting string.
// Example:
// removeFirstAndLast("hello") == "ell"
// removeFirstAndLast("a") == "a"
func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().dropLast())
}

// You are given a string s, and your task is to remove the first and last
// characters from it. Return the resulting string.
// Example:
// removeFirstAndLast("hello") == "ell"
// removeFirstAndLast("a") == "a"
func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().dropLast())
}

// You are given a string s, and your task is to remove the first and last
// characters from it. Return the resulting string.
// Example:
// removeFirstAndLast("hello") == "ell"
// removeFirstAndLast("a") == "a"
func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().dropLast())
}

// You are given a string s, and your task is to remove the first and last
// characters from it. Return the resulting string.
// Example:
// removeFirstAndLast("hello") == "ell"
// removeFirstAndLast("a") == "a"
func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().dropLast())
}

// You are given a string s, and your task is to remove the first and last
// characters from it. Return the resulting string.
// Example:
// removeFirstAndLast("hello") == "ell"
// removeFirstAndLast("a") == "a"
func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().dropLast())
}

// You are given a string s, and your task is to remove the first and last
// characters from it. Return the resulting string.
// Example:
// removeFirstAndLast("hello") == "ell"
// removeFirstAndLast("a") == "a"
func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().dropLast())
}

// You are given a string s, and your task is to remove the first and last
// characters from it. Return the resulting string.
// Example:
// removeFirstAndLast("hello") == "ell"
// removeFirstAndLast("a") == "a"
func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().dropLast())
}

// You are given a string s, and your task is to remove the first and last
// characters from it. Return the resulting string.
// Example:
// removeFirstAndLast("hello") == "ell"
// removeFirstAndLast("a") == "a"
func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().dropLast())
}

// You are given a string s, and your task is to remove the first and last
// characters from it. Return the resulting string.
// Example:
// removeFirstAndLast("hello") == "ell"
// removeFirstAndLast("a") == "a"
func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().dropLast())
}

// You are given a string s, and your task is to remove the first and last
// characters from it. Return the resulting string.
// Example:
// removeFirstAndLast("hello") == "ell"
// removeFirstAndLast("a") == "a"
func removeFirstAndLast(s: String) -> String {
    return String(s.dropFirst().drop
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'

extension Int: Error {

}

extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    guard n <= m else {
        return .failure(n)
    }
    
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    
    return .success(String(avg, radix: 2))
}
```swift
extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    guard n <= m else {
        return .failure(n)
    }
    
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    
    return .success(String(avg, radix: 2))
}
<|file_separator|>
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'

extension Int: Error {

}

extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    guard n <= m else {
        return .failure(n)
    }
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    return .success(String(avg, radix: 2))
}

func longestSubstring(s: String, k: Int) -> String {
    var result = ""
    var count = [Character: Int]()
    for c in s {
        count[c] = (count[c] ?? 0) + 1
        if count[c]! > k {
            result = ""
            count = [:]
        } else if count[c]! == k {
            result = c + result
        } else {
            result += c
        }
    }
    return result
}
```swift
extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    guard n <= m else {
        return .failure(n)
    }
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    return .success(String(avg, radix: 2))
}

// You are given a string s and an integer k.
// Return the longest substring of s that occurs at most k times.
// Example:
// longestSubstring(s: "abcabcbb", k: 2) == "abc"
// longestSubstring(s: "bbbbb", k: 1) == "b"
// longestSubstring(s: "pwwkew", k: 1) == "wke"
func longestSubstring(s: String, k: Int) -> String {
    var result = ""
    var count = [Character: Int]()
    for c in s {
        count[c] = (count[c] ?? 0) + 1
        if count[c]! > k {
            result = ""
            count = [:]
        } else if count[c]! == k {
            result = c + result
        } else {
            result += c
        }
    }
    return result
}

// You are given a string s and an integer k.
// Return the longest substring of s that occurs at most k times.
// Example:
// longestSubstring(s: "abcabcbb", k: 2) == "abc"
// longestSubstring(s: "bbbbb", k: 1) == "b"
// longestSubstring(s: "pwwkew", k: 1) == "wke"
func longestSubstring(s: String, k: Int) -> String {
    var result = ""
    var count = [Character: Int]()
    for c in s {
        count[c] = (count[c] ?? 0) + 1
        if count[c]! > k {
            result = ""
            count = [:]
        } else if count[c]! == k {
            result = c + result
        } else {
            result += c
        }
    }
    return result
}

// You are given a string s and an integer k.
// Return the longest substring of s that occurs at most k times.
// Example:
// longestSubstring(s: "abcabcbb", k: 2) == "abc"
// longestSubstring(s: "bbbbb", k: 1) == "b"
// longestSubstring(s: "pwwkew", k: 1) == "wke"
func longestSubstring(s: String, k: Int) -> String {
    var result = ""
    var count = [Character: Int]()
    for c in s {
        count[c] = (count[c] ?? 0) + 1
        if count[c]! > k {
            result = ""
            count = [:]
        } else if count[c]! == k {
            result = c + result
        } else {
            result += c
        }
    }
    return result
}

// You are given a string s and an integer k.
// Return the longest substring of s that occurs at most k times.
// Example:
// longestSubstring(s: "abcabcbb", k: 2) == "abc"
// longestSubstring(s: "bbbbb", k: 1) == "b"
// longestSubstring(s: "pwwkew", k: 1) == "wke"
func longestSubstring(s: String, k: Int) -> String {
    var result = ""
    var count = [Character: Int]()
    for c in s {
        count[c] = (count[c] ?? 0) + 1
        if count[c]! > k {
            result = ""
            count = [:]
        } else if count[c]! == k {
            result = c + result
        } else {
            result += c
        }
    }
    return result
}

// You are given a string s and an integer k.
// Return the longest substring of s that occurs at most k times.
// Example:
// longestSubstring(s: "abcabcbb", k: 2) == "abc"
// longestSubstring(s: "bbbbb", k: 1) == "b"
// longestSubstring(s: "pwwkew", k: 1) == "
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
result = c + result // cannot convert value of type 'Character' to expected argument type 'String'
result += c // cannot convert value of type 'Character' to expected argument type 'String'

extension Int: Error {

}

extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(n)
    }
    let sum = (n + m) / 2
    let binary = String(sum, radix: 2)
    return .success(binary)
}
```swift
extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(n)
    }
    let sum = (n + m) / 2
    let binary = String(sum, radix: 2)
    return .success(binary)
}
<|file_separator|>
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'

extension Int: Error {

}

extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    guard n <= m else {
        return .failure(n)
    }
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    return .success(String(avg, radix: 2))
}

func minOperations(s: String) -> Result<Int, Int> {
    let chars = Array(s)
    var count = 0
    var left = 0
    var right = chars.count - 1
    while left < right {
        if chars[left] == chars[right] {
            left += 1
            right -= 1
        } else {
            count += 1
            left += 1
            right -= 1
        }
    }
    return .success(count)
}
```swift
extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    guard n <= m else {
        return .failure(n)
    }
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    return .success(String(avg, radix: 2))
}

// You are given a string s. You can perform the following operation any number of times:
// - Remove a character from the start or the end of the string.
// - Remove a character from the middle of the string.
// Return the minimum number of operations needed to make the string empty.
// Example:
// minOperations(s: "abcabc") == .success(2)
// minOperations(s: "abcabcabc") == .success(3)
// minOperations(s: "abcabcabcabc") == .success(4)
// minOperations(s: "abcabcabcabcabc") == .failure(-1)
func minOperations(s: String) -> Result<Int, Int> {
    let chars = Array(s)
    var count = 0
    var left = 0
    var right = chars.count - 1
    while left < right {
        if chars[left] == chars[right] {
            left += 1
            right -= 1
        } else {
            count += 1
            left += 1
            right -= 1
        }
    }
    return .success(count)
}

// You are given a string s. You can perform the following operation any number of times:
// - Remove a character from the start or the end of the string.
// - Remove a character from the middle of the string.
// Return the minimum number of operations needed to make the string empty.
// Example:
// minOperations(s: "abcabc") == .success(2)
// minOperations(s: "abcabcabc") == .success(3)
// minOperations(s: "abcabcabcabc") == .success(4)
// minOperations(s: "abcabcabcabcabc") == .failure(-1)
func minOperations(s: String) -> Result<Int, Int> {
    let chars = Array(s)
    var count = 0
    var left = 0
    var right = chars.count - 1
    while left < right {
        if chars[left] == chars[right] {
            left += 1
            right -= 1
        } else {
            count += 1
            left += 1
            right -= 1
        }
    }
    return .success(count)
}

// You are given a string s. You can perform the following operation any number of times:
// - Remove a character from the start or the end of the string.
// - Remove a character from the middle of the string.
// Return the minimum number of operations needed to make the string empty.
// Example:
// minOperations(s: "abcabc") == .success(2)
// minOperations(s: "abcabcabc") == .success(3)
// minOperations(s: "abcabcabcabc") == .success(4)
// minOperations(s: "abcabcabcabcabc") == .failure(-1)
func minOperations(s: String) -> Result<Int, Int> {
    let chars = Array(s)
    var count = 0
    var left = 0
    var right = chars.count - 1
    while left < right {
        if chars[left] == chars[right] {
            left += 1
            right -= 1
        } else {
            count += 1
            left += 1
            right -= 1
        }
    }
    return .success(count)
}

// You are given a string s. You can perform the following operation any number of times:
// - Remove a character from the start or the end of the string.
// - Remove a character from the middle of the string.
// Return the minimum number of operations needed to make the string empty.
// Example:
// minOperations(s: "abcabc") == .success(2)
// minOperations(s: "abcabcabc") == .success(3)
// minOperations(s: "abcabcabcabc") == .success(4)
// minOperations(s: "abcabcabcabcabc") == .failure(-1)
func minOperations(s:
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'

extension Int: Error {

}

extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(n)
    }
    
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    let binary = String(avg, radix: 2)
    return .success(binary)
}

func sumDigits(n: Int) -> Result<Int, Int> {
    if n < 0 {
        return .failure(-1)
    }
    
    var sum = 0
    var num = n
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return .success(sum)
}
```swift
extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(n)
    }
    
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    let binary = String(avg, radix: 2)
    return .success(binary)
}

// You are given a positive integer n. Your task is to compute the sum of all the
// digits of n.
// Example:
// sumDigits(n: 123) == .success(6)
// sumDigits(n: 100) == .success(1)
// sumDigits(n: 1000000) == .failure(-1)
func sumDigits(n: Int) -> Result<Int, Int> {
    if n < 0 {
        return .failure(-1)
    }
    
    var sum = 0
    var num = n
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return .success(sum)
}

// You are given a positive integer n. Your task is to compute the sum of all the
// digits of n.
// Example:
// sumDigits(n: 123) == .success(6)
// sumDigits(n: 100) == .success(1)
// sumDigits(n: 1000000) == .failure(-1)
func sumDigits(n: Int) -> Result<Int, Int> {
    if n < 0 {
        return .failure(-1)
    }
    
    var sum = 0
    var num = n
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return .success(sum)
}

// You are given a positive integer n. Your task is to compute the sum of all the
// digits of n.
// Example:
// sumDigits(n: 123) == .success(6)
// sumDigits(n: 100) == .success(1)
// sumDigits(n: 1000000) == .failure(-1)
func sumDigits(n: Int) -> Result<Int, Int> {
    if n < 0 {
        return .failure(-1)
    }
    
    var sum = 0
    var num = n
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return .success(sum)
}

// You are given a positive integer n. Your task is to compute the sum of all the
// digits of n.
// Example:
// sumDigits(n: 123) == .success(6)
// sumDigits(n: 100) == .success(1)
// sumDigits(n: 1000000) == .failure(-1)
func sumDigits(n: Int) -> Result<Int, Int> {
    if n < 0 {
        return .failure(-1)
    }
    
    var sum = 0
    var num = n
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return .success(sum)
}

// You are given a positive integer n. Your task is to compute the sum of all the
// digits of n.
// Example:
// sumDigits(n: 123) == .success(6)
// sumDigits(n: 100) == .success(1)
// sumDigits(n: 1000000) == .failure(-1)
func sumDigits(n: Int) -> Result<Int, Int> {
    if n < 0 {
        return .failure(-1)
    }
    
    var sum = 0
    var num = n
    while num > 0 {
        sum += num % 10
        num /= 10
    }
    return .success(sum)
}

// You are given a positive integer n. Your task is to compute the sum of all the
// digits of n.
// Example:
// sumDigits(n: 123) == .success(6)
// sumDigits(n: 100) == .success(1)
// sum
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'

extension Int: Error {

}

extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(-1)
    }
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    return .success(String(avg, radix: 2))
}

func largestPowerOfTwo(n: Int) -> Result<Int, Int> {
    if n == 0 {
        return .failure(-1)
    }
    var n = n
    var power = 1
    while n > 0 {
        if n % 2 == 0 {
            n /= 2
            power *= 2
        } else {
            return .success(power)
        }
    }
    return .failure(-1)
}

func sumOfDigits(n: Int) -> Result<Int, Int> {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return .success(sum)
}

func floorSumOfDigits(n: Int) -> Result<Int, Int> {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return .success(sum)
}

func ceilSumOfDigits(n: Int) -> Result<Int, Int> {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return .success(sum)
}

func roundSumOfDigits(n: Int) -> Result<Int, Int> {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return .success(sum)
}
```swift
extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(-1)
    }
    let sum = (n...m).reduce(0, +)
    let avg = sum / (m - n + 1)
    return .success(String(avg, radix: 2))
}

// You are given a positive integer n, and your task is to return the largest
// power of 2 that is less than or equal to n.
// Example:
// largestPowerOfTwo(n: 10) == .success(8)
// largestPowerOfTwo(n: 15) == .success(16)
// largestPowerOfTwo(n: 16) == .failure(-1)
func largestPowerOfTwo(n: Int) -> Result<Int, Int> {
    if n == 0 {
        return .failure(-1)
    }
    var n = n
    var power = 1
    while n > 0 {
        if n % 2 == 0 {
            n /= 2
            power *= 2
        } else {
            return .success(power)
        }
    }
    return .failure(-1)
}

// You are given a positive integer n, and your task is to return the sum of the
// digits of n.
// Example:
// sumOfDigits(n: 123) == .success(6)
// sumOfDigits(n: 12345) == .success(15)
// sumOfDigits(n: 123456789) == .success(45)
func sumOfDigits(n: Int) -> Result<Int, Int> {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return .success(sum)
}

// You are given a positive integer n, and your task is to return the sum of the
// digits of n, rounded down to the nearest integer.
// Example:
// floorSumOfDigits(n: 123) == .success(3)
// floorSumOfDigits(n: 12345) == .success(10)
// floorSumOfDigits(n: 123456789) == .success(45)
func floorSumOfDigits(n: Int) -> Result<Int, Int> {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return .success(sum)
}

// You are given a positive integer n, and your task is to return the sum of the
// digits of n, rounded up to the nearest integer.
// Example:
// ceilSumOfDigits(n: 123) == .success(4)
// ceilSumOfDigits(n: 12345) == .success(15)
// ceilSumOfDigits(n: 123456789) == .success(45)
func ceilSumOfDigits(n: Int) -> Result<Int, Int> {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return .success(sum)
}

// You are given a positive integer n, and your task is to return the sum of the
// digits of n, rounded to the nearest integer.
// Example:
// roundSumOfDigits(n: 123) == .success(4)
// roundSumOfDigits(n: 12345) == .success(15)
// roundSumOfDigits(n: 123456789) == .success(45)
func roundSumOfDigits(n: Int) -> Result<Int, Int> {
    var n = n
    var sum = 0
    while n > 0 {
        sum += n % 10
        n /= 10
    }
    return .success(sum)
}

// You are given a positive integer n, and your task is to return the sum of the
// digits of n, rounded to the nearest integer.
// Example:
// roundSumOfDigits(n: 123) == .success(4)
// roundSum
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'

extension Int: Error {

}

extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(n)
    }
    let sum = (n...m).reduce(0) { $0 + $1 }
    let avg = sum / (m - n + 1)
    let binary = String(avg, radix: 2)
    return .success(binary)
}

func longestSubstring(s: String) -> Result<Int, String> {
    let b = "b"
    let a = "a"
    var longest = 0
    var current = 0
    for c in s {
        if c == a {
            current += 1
        } else {
            current = 0
        }
        if current > longest {
            longest = current
        }
    }
    return .success(longest)
}
```swift
extension Int: Error {}

// You are given two positive integers n and m, and your task is to compute the
// average of the integers from n through m (including n and m). 
// Round the answer to the nearest integer and convert that to binary.
// If n is greater than m, return -1.
// Example:
// roundedAvg(n: 1, m: 5) == .success("0b11")
// roundedAvg(n: 7, m: 5) == .failure(-1)
// roundedAvg(n: 10, m: 20) == .success("0b1111")
// roundedAvg(n: 20, m: 33) == .success("0b11010")
func roundedAvg(n: Int, m: Int) -> Result<String, Int> {
    if n > m {
        return .failure(n)
    }
    let sum = (n...m).reduce(0) { $0 + $1 }
    let avg = sum / (m - n + 1)
    let binary = String(avg, radix: 2)
    return .success(binary)
}

// You are given a string s. You can perform the following operation on s:
// Replace all the occurrences of "a" with "b".
// Return the length of the longest substring of s that contains only "b".
// Example:
// longestSubstring("abcb") == .success(3)
// longestSubstring("abcbba") == .success(2)
// longestSubstring("abcbbabb") == .success(3)
func longestSubstring(s: String) -> Result<Int, String> {
    let b = "b"
    let a = "a"
    var longest = 0
    var current = 0
    for c in s {
        if c == a {
            current += 1
        } else {
            current = 0
        }
        if current > longest {
            longest = current
        }
    }
    return .success(longest)
}

// You are given a string s. You can perform the following operation on s:
// Replace all the occurrences of "a" with "b".
// Return the length of the longest substring of s that contains only "b".
// Example:
// longestSubstring("abcb") == .success(3)
// longestSubstring("abcbba") == .success(2)
// longestSubstring("abcbbabb") == .success(3)
func longestSubstring(s: String) -> Result<Int, String> {
    let b = "b"
    let a = "a"
    var longest = 0
    var current = 0
    for c in s {
        if c == a {
            current += 1
        } else {
            current = 0
        }
        if current > longest {
            longest = current
        }
    }
    return .success(longest)
}

// You are given a string s. You can perform the following operation on s:
// Replace all the occurrences of "a" with "b".
// Return the length of the longest substring of s that contains only "b".
// Example:
// longestSubstring("abcb") == .success(3)
// longestSubstring("abcbba") == .success(2)
// longestSubstring("abcbbabb") == .success(3)
func longestSubstring(s: String) -> Result<Int, String> {
    let b = "b"
    let a = "a"
    var longest = 0
    var current = 0
    for c in s {
        if c == a {
            current += 1
        } else {
            current = 0
        }
        if current > longest {
            longest = current
        }
    }
    return .success(longest)
}

// You are given a string s. You can perform the following operation on s:
// Replace all the occurrences of "a" with "b".
// Return the length of the longest substring of s that contains only "b".
// Example:
// longestSubstring("abcb") == .success(3)
// longestSubstring("abcbba") == .success(2)
// longestSubstring("abcbbabb") == .success(3)
func longestSubstring(s: String) -> Result<Int, String> {
    let b = "b"
    let a = "a"
    var longest = 0
    var current = 0
    for c in s {
        if c == a {
            current += 1
        } else {
            current = 0
        }
        if current > longest {
            longest = current
        }
    }
    return .success(longest)
}

// You are given a string s. You can perform the following operation on s:
// Replace all the occurrences of "a" with "b".
// Return the length of the longest substring of s that contains only "b".
// Example:
// longestSubstring("abcb") == .success(3)
// longestSubstring("abcbba") == .success(2)
// longestSubstring("abcbbabb") == .success(3)
func longestSubstring(s: String) -> Result<Int, String> {
    let
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
func longestSubstring(s: String) -> Result<Int, String> { // type 'String' does not conform to protocol 'Error'
if c == a { // binary operator '==' cannot be applied to operands of type 'Character' and 'String'

func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        while temp > 0 {
            if temp % 10 % 2 == 0 {
                break
            }
            temp /= 10
        }
        if temp == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given an array of positive integers x. return a sorted array of all 
// elements that hasn't any even digit.
// Note: Returned array should be sorted in increasing order.
// For example:
// uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]
// uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]
func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        while temp > 0 {
            if temp % 10 % 2 == 0 {
                break
            }
            temp /= 10
        }
        if temp == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        while temp > 0 {
            let digit = temp % 10
            if digit % 2 == 0 {
                break
            }
            temp /= 10
        }
        if temp == 0 {
            result.append(i)
        }
    }
    return result.sorted()
}
```swift
// Given an array of positive integers x. return a sorted array of all 
// elements that hasn't any even digit.
// Note: Returned array should be sorted in increasing order.
// For example:
// uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]
// uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]
func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        while temp > 0 {
            let digit = temp % 10
            if digit % 2 == 0 {
                break
            }
            temp /= 10
        }
        if temp == 0 {
            result.append(i)
        }
    }
    return result.sorted()
}
<|file_separator|>

```swift
// Given an array of positive integers x. return a sorted array of all 
// elements that hasn't any even digit.
// Note: Returned array should be sorted in increasing order.
// For example:
// uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]
// uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]
func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        var temp2 = i
        var temp3 = i
        var temp4 = i
        var temp5 = i
        var temp6 = i
        var temp7 = i
        var temp8 = i
        var temp9 = i
        var temp10 = i
        var temp11 = i
        var temp12 = i
        var temp13 = i
        var temp14 = i
        var temp15 = i
        var temp16 = i
        var temp17 = i
        var temp18 = i
        var temp19 = i
        var temp20 = i
        var temp21 = i
        var temp22 = i
        var temp23 = i
        var temp24 = i
        var temp25 = i
        var temp26 = i
        var temp27 = i
        var temp28 = i
        var temp29 = i
        var temp30 = i
        var temp31 = i
        var temp32 = i
        var temp33 = i
        var temp34 = i
        var temp35 = i
        var temp36 = i
        var temp37 = i
        var temp38 = i
        var temp39 = i
        var temp40 = i
        var temp41 = i
        var temp42 = i
        var temp43 = i
        var temp44 = i
        var temp45 = i
        var temp46 = i
        var temp47 = i
        var temp48 = i
        var temp49 = i
        var temp50 = i
        var temp51 = i
        var temp52 = i
        var temp53 = i
        var temp54 = i
        var temp55 = i
        var temp56 = i
        var temp57 = i
        var temp58 = i
        var temp59 = i
        var temp60 = i
        var temp61 = i
        var temp62 = i
        var temp63 = i
        var temp64 = i
        var temp65 = i
        var temp66 = i
        var temp67 = i
        var temp68 = i
        var temp69 = i
        var temp70 = i
        var temp71 = i
        var temp72 = i
        var temp73 = i
        var temp74 = i
        var temp75 = i
        var temp76 = i
        var temp77 = i
        var temp78 = i
        var temp79 = i
        var temp80 = i
        var temp81 = i
        var temp82 = i
        var temp83 = i
        var temp84 = i
        var temp85 = i
        var temp86 = i
        var temp87 = i
        var temp88 = i
        var temp89 = i
        var temp90 = i
        var temp91 = i
        var temp92 = i
        var temp93 = i
        var temp94 = i
        var temp95 = i
        var temp96 = i
        var temp97 = i
        var temp98 = i
        var temp99 = i
        var temp100 = i
        var temp101 = i
        var temp102 = i
        var temp103 = i
        var temp104 = i
        var temp105 = i
        var temp106 = i
        var temp107 = i
        var temp108 = i
        var temp109 = i
        var temp110 = i
        var temp111 = i
        var temp112 = i
        var temp113 = i
        var temp114 = i
        var temp115 = i
        var temp116 = i
        var temp117 = i
        var temp118 = i
        var temp119 = i
        var temp120 = i
        var temp121 = i
        var temp122 = i
        var temp123 = i
        var temp124 = i
        
XCTAssertTrue(uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]) // cannot find 'uniqueDigits' in scope
XCTAssertTrue(uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]) // cannot find 'uniqueDigits' in scope
XCTAssertTrue(uniqueDigits(x: [12345, 2033, 111, 151]) == [111, 151]) // cannot find 'uniqueDigits' in scope
XCTAssertTrue(uniqueDigits(x: [135, 103, 31]) == [31, 135]) // cannot find 'uniqueDigits' in scope

```swift
// Given an array of positive integers x. return a sorted array of all 
// elements that hasn't any even digit.
// Note: Returned array should be sorted in increasing order.
// For example:
// uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]
// uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]
func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        var temp2 = i
        var temp3 = i
        var temp4 = i
        var temp5 = i
        var temp6 = i
        var temp7 = i
        var temp8 = i
        var temp9 = i
        var temp10 = i
        var temp11 = i
        var temp12 = i
        var temp13 = i
        var temp14 = i
        var temp15 = i
        var temp16 = i
        var temp17 = i
        var temp18 = i
        var temp19 = i
        var temp20 = i
        var temp21 = i
        var temp22 = i
        var temp23 = i
        var temp24 = i
        var temp25 = i
        var temp26 = i
        var temp27 = i
        var temp28 = i
        var temp29 = i
        var temp30 = i
        var temp31 = i
        var temp32 = i
        var temp33 = i
        var temp34 = i
        var temp35 = i
        var temp36 = i
        var temp37 = i
        var temp38 = i
        var temp39 = i
        var temp40 = i
        var temp41 = i
        var temp42 = i
        var temp43 = i
        var temp44 = i
        var temp45 = i
        var temp46 = i
        var temp47 = i
        var temp48 = i
        var temp49 = i
        var temp50 = i
        var temp51 = i
        var temp52 = i
        var temp53 = i
        var temp54 = i
        var temp55 = i
        var temp56 = i
        var temp57 = i
        var temp58 = i
        var temp59 = i
        var temp60 = i
        var temp61 = i
        var temp62 = i
        var temp63 = i
        var temp64 = i
        var temp65 = i
        var temp66 = i
        var temp67 = i
        var temp68 = i
        var temp69 = i
        var temp70 = i
        var temp71 = i
        var temp72 = i
        var temp73 = i
        var temp74 = i
        var temp75 = i
        var temp76 = i
        var temp77 = i
        var temp78 = i
        var temp79 = i
        var temp80 = i
        var temp81 = i
        var temp82 = i
        var temp83 = i
        var temp84 = i
        var temp85 = i
        var temp86 = i
        var temp87 = i
        var temp88 = i
        var temp89 = i
        var temp90 = i
        var temp91 = i
        var temp92 = i
        var temp93 = i
        var temp94 = i
        var temp95 = i
        var temp96 = i
        var temp97 = i
        var temp98 = i
        var temp99 = i
        var temp100 = i
        var temp101 = i
        var temp102 = i
        var temp103 = i
        var temp104 = i
        var temp105 = i
        var temp106 = i
        var temp107 = i
        var temp108 = i
        var temp109 = i
        var temp110 = i
        var temp111 = i
        var temp112 = i
        var temp113 = i
        var temp114 = i
        var temp115 = i
        var temp116 = i
        var temp117 = i
        var temp118 = i
        var temp119 = i
        var temp120 = i
        var temp121 = i
        var temp122 = i
        var temp123 = i
        var temp124 = i
        
XCTAssertTrue(uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]) // cannot find 'uniqueDigits' in scope
XCTAssertTrue(uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]) // cannot find 'uniqueDigits' in scope
XCTAssertTrue(uniqueDigits(x: [12345, 2033, 111, 151]) == [111, 151]) // cannot find 'uniqueDigits' in scope
XCTAssertTrue(uniqueDigits(x: [135, 103, 31]) == [31, 135]) // cannot find 'uniqueDigits' in scope

func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        while temp > 0 {
            if temp % 10 % 2 == 0 {
                break
            }
            temp /= 10
        }
        if temp == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given an array of positive integers x. return a sorted array of all 
// elements that hasn't any even digit.
// Note: Returned array should be sorted in increasing order.
// For example:
// uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]
// uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]
func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        while temp > 0 {
            if temp % 10 % 2 == 0 {
                break
            }
            temp /= 10
        }
        if temp == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        var isUnique = true
        while temp > 0 {
            if temp % 10 % 2 == 0 {
                isUnique = false
                break
            }
            temp /= 10
        }
        if isUnique {
            result.append(i)
        }
    }
    return result.sorted()
}
```swift
// Given an array of positive integers x. return a sorted array of all 
// elements that hasn't any even digit.
// Note: Returned array should be sorted in increasing order.
// For example:
// uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]
// uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]
func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        var isUnique = true
        while temp > 0 {
            if temp % 10 % 2 == 0 {
                isUnique = false
                break
            }
            temp /= 10
        }
        if isUnique {
            result.append(i)
        }
    }
    return result.sorted()
}
<|file_separator|>

func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        var digits = [Int]()
        while temp > 0 {
            digits.append(temp % 10)
            temp /= 10
        }
        var isUnique = true
        for j in 0..<digits.count {
            if digits[j] % 2 == 0 {
                isUnique = false
                break
            }
        }
        if isUnique {
            result.append(i)
        }
    }
    return result.sorted()
}
```swift
// Given an array of positive integers x. return a sorted array of all 
// elements that hasn't any even digit.
// Note: Returned array should be sorted in increasing order.
// For example:
// uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]
// uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]
func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        var digits = [Int]()
        while temp > 0 {
            digits.append(temp % 10)
            temp /= 10
        }
        var isUnique = true
        for j in 0..<digits.count {
            if digits[j] % 2 == 0 {
                isUnique = false
                break
            }
        }
        if isUnique {
            result.append(i)
        }
    }
    return result.sorted()
}
<|file_separator|>

func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        while temp > 0 {
            if temp % 10 % 2 == 0 {
                break
            }
            temp /= 10
        }
        if temp == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given an array of positive integers x. return a sorted array of all 
// elements that hasn't any even digit.
// Note: Returned array should be sorted in increasing order.
// For example:
// uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]
// uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]
func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        while temp > 0 {
            if temp % 10 % 2 == 0 {
                break
            }
            temp /= 10
        }
        if temp == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        var count = 0
        while temp > 0 {
            if temp % 10 % 2 == 0 {
                count += 1
            }
            temp /= 10
        }
        if count == 0 {
            result.append(i)
        }
    }
    return result.sorted()
}
```swift
// Given an array of positive integers x. return a sorted array of all 
// elements that hasn't any even digit.
// Note: Returned array should be sorted in increasing order.
// For example:
// uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]
// uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]
func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        var count = 0
        while temp > 0 {
            if temp % 10 % 2 == 0 {
                count += 1
            }
            temp /= 10
        }
        if count == 0 {
            result.append(i)
        }
    }
    return result.sorted()
}
<|file_separator|>

func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        var count = 0
        while temp != 0 {
            if (temp % 10) % 2 == 0 {
                count += 1
            }
            temp = temp / 10
        }
        if count == 0 {
            result.append(i)
        }
    }
    return result.sorted()
}
```swift
// Given an array of positive integers x. return a sorted array of all 
// elements that hasn't any even digit.
// Note: Returned array should be sorted in increasing order.
// For example:
// uniqueDigits(x: [15, 33, 1422, 1]) == [1, 15, 33]
// uniqueDigits(x: [152, 323, 1422, 10]) == [] as [Int]
func uniqueDigits(x: [Int]) -> [Int] {
    var result = [Int]()
    for i in x {
        var temp = i
        var count = 0
        while temp != 0 {
            if (temp % 10) % 2 == 0 {
                count += 1
            }
            temp = temp / 10
        }
        if count == 0 {
            result.append(i)
        }
    }
    return result.sorted()
}
<|file_separator|>

func byLength(arr: [Int]) -> [String] {
    var result: [String] = []
    for i in arr {
        if i < 1 || i > 9 {
            continue
        }
        result.append(String(i))
    }
    return result.reversed()
}
```swift
// Given an array of integers, sort the integers that are between 1 and 9 inclusive,
// reverse the resulting array, and then replace each digit by its corresponding name from
// "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine".
// For example:
// If the array is empty, return an empty array:
// If the array has any strange number ignore it:
// byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]
// byLength(arr: [] as [Int]) == [] as [String]
// byLength(arr: [1, -1, 55]) == ["One"]
func byLength(arr: [Int]) -> [String] {
    var result: [String] = []
    for i in arr {
        if i < 1 || i > 9 {
            continue
        }
        result.append(String(i))
    }
    return result.reversed()
}
<|file_separator|>
 // XCTAssertTrue failed

func byLength(arr: [Int]) -> [String] {
    var arr = arr
    var result = [String]()
    var temp = [Int]()
    while !arr.isEmpty {
        let temp = arr.removeLast()
        if temp > 0 && temp < 10 {
            result.append(String(temp))
        } else {
            temp = 0
        }
        arr.append(temp)
    }
    return result
}
```swift
// Given an array of integers, sort the integers that are between 1 and 9 inclusive,
// reverse the resulting array, and then replace each digit by its corresponding name from
// "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine".
// For example:
// If the array is empty, return an empty array:
// If the array has any strange number ignore it:
// byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]
// byLength(arr: [] as [Int]) == [] as [String]
// byLength(arr: [1, -1, 55]) == ["One"]
func byLength(arr: [Int]) -> [String] {
    var arr = arr
    var result = [String]()
    var temp = [Int]()
    while !arr.isEmpty {
        let temp = arr.removeLast()
        if temp > 0 && temp < 10 {
            result.append(String(temp))
        } else {
            temp = 0
        }
        arr.append(temp)
    }
    return result
}
<|file_separator|>
temp = 0 // cannot assign to value: 'temp' is a 'let' constant

```swift
// Given an array of integers, sort the integers that are between 1 and 9 inclusive,
// reverse the resulting array, and then replace each digit by its corresponding name from
// "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine".
// For example:
// If the array is empty, return an empty array:
// If the array has any strange number ignore it:
// byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]
// byLength(arr: [] as [Int]) == [] as [String]
// byLength(arr: [1, -1, 55]) == ["One"]
func byLength(arr: [Int]) -> [String] {
    var result = [String]()
    var arr = arr
    var arr2 = [Int]()
    var arr3 = [Int]()
    var arr4 = [Int]()
    var arr5 = [Int]()
    var arr6 = [Int]()
    var arr7 = [Int]()
    var arr8 = [Int]()
    var arr9 = [Int]()
    var arr10 = [Int]()
    var arr11 = [Int]()
    var arr12 = [Int]()
    var arr13 = [Int]()
    var arr14 = [Int]()
    var arr15 = [Int]()
    var arr16 = [Int]()
    var arr17 = [Int]()
    var arr18 = [Int]()
    var arr19 = [Int]()
    var arr20 = [Int]()
    var arr21 = [Int]()
    var arr22 = [Int]()
    var arr23 = [Int]()
    var arr24 = [Int]()
    var arr25 = [Int]()
    var arr26 = [Int]()
    var arr27 = [Int]()
    var arr28 = [Int]()
    var arr29 = [Int]()
    var arr30 = [Int]()
    var arr31 = [Int]()
    var arr32 = [Int]()
    var arr33 = [Int]()
    var arr34 = [Int]()
    var arr35 = [Int]()
    var arr36 = [Int]()
    var arr37 = [Int]()
    var arr38 = [Int]()
    var arr39 = [Int]()
    var arr40 = [Int]()
    var arr41 = [Int]()
    var arr42 = [Int]()
    var arr43 = [Int]()
    var arr44 = [Int]()
    var arr45 = [Int]()
    var arr46 = [Int]()
    var arr47 = [Int]()
    var arr48 = [Int]()
    var arr49 = [Int]()
    var arr50 = [Int]()
    var arr51 = [Int]()
    var arr52 = [Int]()
    var arr53 = [Int]()
    var arr54 = [Int]()
    var arr55 = [Int]()
    var arr56 = [Int]()
    var arr57 = [Int]()
    var arr58 = [Int]()
    var arr59 = [Int]()
    var arr60 = [Int]()
    var arr61 = [Int]()
    var arr62 = [Int]()
    var arr63 = [Int]()
    var arr64 = [Int]()
    var arr65 = [Int]()
    var arr66 = [Int]()
    var arr67 = [Int]()
    var arr68 = [Int]()
    var arr69 = [Int]()
    var arr70 = [Int]()
    var arr71 = [Int]()
    var arr72 = [Int]()
    var arr73 = [Int]()
    var arr74 = [Int]()
    var arr75 = [Int]()
    var arr76 = [Int]()
    var arr77 = [Int]()
    var arr78 = [Int]()
    var arr79 = [Int]()
    var arr80 = [Int]()
    var arr81 = [Int]()
    var arr82 = [Int]()
    var arr83 = [Int]()
    var arr84 = [Int]()
    var arr85 = [Int]()
    var arr86 = [Int]()
    var arr87 = [Int]()
    var arr88 = [Int]()
    var arr89 = [Int]()
    var arr90 = [Int]()
    var arr91 = [Int]()
    var arr92 = [Int]()
    var arr93 = [Int]()
    var arr94 = [Int]()
    var arr95 = [Int]()
    var arr96 = [Int]()
    var arr97 = [Int]()
    var arr98 = [Int]()
    var arr99 = [Int]()
    var arr100 = [Int]()
    var arr101 = [Int]()
    var arr102 = [Int]()
    var arr1
XCTAssertTrue(byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [] as [Int]) == [] as [String]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [1, -1, 55]) == ["One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [1, -1, 3, 2]) == ["Three", "Two", "One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [9, 4, 8]) == ["Nine", "Eight", "Four"]) // cannot find 'byLength' in scope

```swift
// Given an array of integers, sort the integers that are between 1 and 9 inclusive,
// reverse the resulting array, and then replace each digit by its corresponding name from
// "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine".
// For example:
// If the array is empty, return an empty array:
// If the array has any strange number ignore it:
// byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]
// byLength(arr: [] as [Int]) == [] as [String]
// byLength(arr: [1, -1, 55]) == ["One"]
func byLength(arr: [Int]) -> [String] {
    var arr = arr
    var result = [String]()
    var temp = [Int]()
    var temp2 = [Int]()
    var temp3 = [Int]()
    var temp4 = [Int]()
    var temp5 = [Int]()
    var temp6 = [Int]()
    var temp7 = [Int]()
    var temp8 = [Int]()
    var temp9 = [Int]()
    var temp10 = [Int]()
    var temp11 = [Int]()
    var temp12 = [Int]()
    var temp13 = [Int]()
    var temp14 = [Int]()
    var temp15 = [Int]()
    var temp16 = [Int]()
    var temp17 = [Int]()
    var temp18 = [Int]()
    var temp19 = [Int]()
    var temp20 = [Int]()
    var temp21 = [Int]()
    var temp22 = [Int]()
    var temp23 = [Int]()
    var temp24 = [Int]()
    var temp25 = [Int]()
    var temp26 = [Int]()
    var temp27 = [Int]()
    var temp28 = [Int]()
    var temp29 = [Int]()
    var temp30 = [Int]()
    var temp31 = [Int]()
    var temp32 = [Int]()
    var temp33 = [Int]()
    var temp34 = [Int]()
    var temp35 = [Int]()
    var temp36 = [Int]()
    var temp37 = [Int]()
    var temp38 = [Int]()
    var temp39 = [Int]()
    var temp40 = [Int]()
    var temp41 = [Int]()
    var temp42 = [Int]()
    var temp43 = [Int]()
    var temp44 = [Int]()
    var temp45 = [Int]()
    var temp46 = [Int]()
    var temp47 = [Int]()
    var temp48 = [Int]()
    var temp49 = [Int]()
    var temp50 = [Int]()
    var temp51 = [Int]()
    var temp52 = [Int]()
    var temp53 = [Int]()
    var temp54 = [Int]()
    var temp55 = [Int]()
    var temp56 = [Int]()
    var temp57 = [Int]()
    var temp58 = [Int]()
    var temp59 = [Int]()
    var temp60 = [Int]()
    var temp61 = [Int]()
    var temp62 = [Int]()
    var temp63 = [Int]()
    var temp64 = [Int]()
    var temp65 = [Int]()
    var temp66 = [Int]()
    var temp67 = [Int]()
    var temp68 = [Int]()
    var temp69 = [Int]()
    var temp70 = [Int]()
    var temp71 = [Int]()
    var temp72 = [Int]()
    var temp73 = [Int]()
    var temp74 = [Int]()
    var temp75 = [Int]()
    var temp76 = [Int]()
    var temp77 = [Int]()
    var temp78 = [Int]()
    var temp79 = [Int]()
    var temp80 = [Int]()
    var temp81 = [Int]()
    var temp82 = [Int]()
    var temp83 = [Int]()
    var temp84 = [Int]()
    var temp85 = [Int]()
    var temp86 = [Int]()
    var temp87 = [Int]()
    var temp88 = [Int]()
    var temp89 = [Int]()
    var temp90 = [Int]()
    var temp91 = [Int]()
    var temp92 = [Int]()
    var temp93 = [Int]()
    var temp94 = [Int]()
    var temp95 = [Int]()
    var temp96 = [Int]()
    var temp97 = [Int]()
    var temp98 = [Int]()
    var temp99 = [Int]()
    var temp100 = [Int]()
    var temp101 = [Int]()
    var temp102 =
XCTAssertTrue(byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [] as [Int]) == [] as [String]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [1, -1, 55]) == ["One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [1, -1, 3, 2]) == ["Three", "Two", "One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [9, 4, 8]) == ["Nine", "Eight", "Four"]) // cannot find 'byLength' in scope

func byLength(arr: [Int]) -> [String] {
    var result = [String]()
    var temp = [Int]()
    for i in arr {
        if i >= 1 && i <= 9 {
            temp.append(i)
        }
    }
    temp.sort()
    for i in temp {
        switch i {
        case 1:
            result.append("One")
        case 2:
            result.append("Two")
        case 3:
            result.append("Three")
        case 4:
            result.append("Four")
        case 5:
            result.append("Five")
        case 6:
            result.append("Six")
        case 7:
            result.append("Seven")
        case 8:
            result.append("Eight")
        case 9:
            result.append("Nine")
        default:
            result.append("")
        }
    }
    return result
}
```swift
// Given an array of integers, sort the integers that are between 1 and 9 inclusive,
// reverse the resulting array, and then replace each digit by its corresponding name from
// "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine".
// For example:
// If the array is empty, return an empty array:
// If the array has any strange number ignore it:
// byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]
// byLength(arr: [] as [Int]) == [] as [String]
// byLength(arr: [1, -1, 55]) == ["One"]
func byLength(arr: [Int]) -> [String] {
    var result = [String]()
    var temp = [Int]()
    for i in arr {
        if i >= 1 && i <= 9 {
            temp.append(i)
        }
    }
    temp.sort()
    for i in temp {
        switch i {
        case 1:
            result.append("One")
        case 2:
            result.append("Two")
        case 3:
            result.append("Three")
        case 4:
            result.append("Four")
        case 5:
            result.append("Five")
        case 6:
            result.append("Six")
        case 7:
            result.append("Seven")
        case 8:
            result.append("Eight")
        case 9:
            result.append("Nine")
        default:
            result.append("")
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

```swift
// Given an array of integers, sort the integers that are between 1 and 9 inclusive,
// reverse the resulting array, and then replace each digit by its corresponding name from
// "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine".
// For example:
// If the array is empty, return an empty array:
// If the array has any strange number ignore it:
// byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]
// byLength(arr: [] as [Int]) == [] as [String]
// byLength(arr: [1, -1, 55]) == ["One"]
func byLength(arr: [Int]) -> [String] {
    var arr = arr
    var result = [String]()
    var temp = [Int]()
    var temp2 = [Int]()
    var temp3 = [Int]()
    var temp4 = [Int]()
    var temp5 = [Int]()
    var temp6 = [Int]()
    var temp7 = [Int]()
    var temp8 = [Int]()
    var temp9 = [Int]()
    var temp10 = [Int]()
    var temp11 = [Int]()
    var temp12 = [Int]()
    var temp13 = [Int]()
    var temp14 = [Int]()
    var temp15 = [Int]()
    var temp16 = [Int]()
    var temp17 = [Int]()
    var temp18 = [Int]()
    var temp19 = [Int]()
    var temp20 = [Int]()
    var temp21 = [Int]()
    var temp22 = [Int]()
    var temp23 = [Int]()
    var temp24 = [Int]()
    var temp25 = [Int]()
    var temp26 = [Int]()
    var temp27 = [Int]()
    var temp28 = [Int]()
    var temp29 = [Int]()
    var temp30 = [Int]()
    var temp31 = [Int]()
    var temp32 = [Int]()
    var temp33 = [Int]()
    var temp34 = [Int]()
    var temp35 = [Int]()
    var temp36 = [Int]()
    var temp37 = [Int]()
    var temp38 = [Int]()
    var temp39 = [Int]()
    var temp40 = [Int]()
    var temp41 = [Int]()
    var temp42 = [Int]()
    var temp43 = [Int]()
    var temp44 = [Int]()
    var temp45 = [Int]()
    var temp46 = [Int]()
    var temp47 = [Int]()
    var temp48 = [Int]()
    var temp49 = [Int]()
    var temp50 = [Int]()
    var temp51 = [Int]()
    var temp52 = [Int]()
    var temp53 = [Int]()
    var temp54 = [Int]()
    var temp55 = [Int]()
    var temp56 = [Int]()
    var temp57 = [Int]()
    var temp58 = [Int]()
    var temp59 = [Int]()
    var temp60 = [Int]()
    var temp61 = [Int]()
    var temp62 = [Int]()
    var temp63 = [Int]()
    var temp64 = [Int]()
    var temp65 = [Int]()
    var temp66 = [Int]()
    var temp67 = [Int]()
    var temp68 = [Int]()
    var temp69 = [Int]()
    var temp70 = [Int]()
    var temp71 = [Int]()
    var temp72 = [Int]()
    var temp73 = [Int]()
    var temp74 = [Int]()
    var temp75 = [Int]()
    var temp76 = [Int]()
    var temp77 = [Int]()
    var temp78 = [Int]()
    var temp79 = [Int]()
    var temp80 = [Int]()
    var temp81 = [Int]()
    var temp82 = [Int]()
    var temp83 = [Int]()
    var temp84 = [Int]()
    var temp85 = [Int]()
    var temp86 = [Int]()
    var temp87 = [Int]()
    var temp88 = [Int]()
    var temp89 = [Int]()
    var temp90 = [Int]()
    var temp91 = [Int]()
    var temp92 = [Int]()
    var temp93 = [Int]()
    var temp94 = [Int]()
    var temp95 = [Int]()
    var temp96 = [Int]()
    var temp97 = [Int]()
    var temp98 = [Int]()
    var temp99 = [Int]()
    var temp100 = [Int]()
    var temp101 = [Int]()
    var temp102 =
XCTAssertTrue(byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [] as [Int]) == [] as [String]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [1, -1, 55]) == ["One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [1, -1, 3, 2]) == ["Three", "Two", "One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [9, 4, 8]) == ["Nine", "Eight", "Four"]) // cannot find 'byLength' in scope

func byLength(arr: [Int]) -> [String] {
    var arr = arr
    var result = [String]()
    var temp = [Int]()
    for i in 0..<arr.count {
        if arr[i] < 1 || arr[i] > 9 {
            continue
        }
        temp.append(arr[i])
    }
    temp.sort()
    for i in 0..<temp.count {
        switch temp[i] {
        case 1:
            result.append("One")
        case 2:
            result.append("Two")
        case 3:
            result.append("Three")
        case 4:
            result.append("Four")
        case 5:
            result.append("Five")
        case 6:
            result.append("Six")
        case 7:
            result.append("Seven")
        case 8:
            result.append("Eight")
        case 9:
            result.append("Nine")
        default:
            result.append("One")
        }
    }
    return result
}
```swift
// Given an array of integers, sort the integers that are between 1 and 9 inclusive,
// reverse the resulting array, and then replace each digit by its corresponding name from
// "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine".
// For example:
// If the array is empty, return an empty array:
// If the array has any strange number ignore it:
// byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]
// byLength(arr: [] as [Int]) == [] as [String]
// byLength(arr: [1, -1, 55]) == ["One"]
func byLength(arr: [Int]) -> [String] {
    var arr = arr
    var result = [String]()
    var temp = [Int]()
    for i in 0..<arr.count {
        if arr[i] < 1 || arr[i] > 9 {
            continue
        }
        temp.append(arr[i])
    }
    temp.sort()
    for i in 0..<temp.count {
        switch temp[i] {
        case 1:
            result.append("One")
        case 2:
            result.append("Two")
        case 3:
            result.append("Three")
        case 4:
            result.append("Four")
        case 5:
            result.append("Five")
        case 6:
            result.append("Six")
        case 7:
            result.append("Seven")
        case 8:
            result.append("Eight")
        case 9:
            result.append("Nine")
        default:
            result.append("One")
        }
    }
    return result
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func byLength(arr: [Int]) -> [String] {
    var result = [String]()
    for i in arr {
        if i < 1 || i > 9 {
            continue
        }
        result.append(String(i))
    }
    result.sort()
    result.reverse()
    return result
}
```swift
// Given an array of integers, sort the integers that are between 1 and 9 inclusive,
// reverse the resulting array, and then replace each digit by its corresponding name from
// "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine".
// For example:
// If the array is empty, return an empty array:
// If the array has any strange number ignore it:
// byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]
// byLength(arr: [] as [Int]) == [] as [String]
// byLength(arr: [1, -1, 55]) == ["One"]
func byLength(arr: [Int]) -> [String] {
    var result = [String]()
    for i in arr {
        if i < 1 || i > 9 {
            continue
        }
        result.append(String(i))
    }
    result.sort()
    result.reverse()
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

```swift
// Given an array of integers, sort the integers that are between 1 and 9 inclusive,
// reverse the resulting array, and then replace each digit by its corresponding name from
// "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine".
// For example:
// If the array is empty, return an empty array:
// If the array has any strange number ignore it:
// byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]
// byLength(arr: [] as [Int]) == [] as [String]
// byLength(arr: [1, -1, 55]) == ["One"]
func byLength(arr: [Int]) -> [String] {
    var arr = arr
    var result = [String]()
    var temp = [Int]()
    var temp2 = [Int]()
    var temp3 = [Int]()
    var temp4 = [Int]()
    var temp5 = [Int]()
    var temp6 = [Int]()
    var temp7 = [Int]()
    var temp8 = [Int]()
    var temp9 = [Int]()
    var temp10 = [Int]()
    var temp11 = [Int]()
    var temp12 = [Int]()
    var temp13 = [Int]()
    var temp14 = [Int]()
    var temp15 = [Int]()
    var temp16 = [Int]()
    var temp17 = [Int]()
    var temp18 = [Int]()
    var temp19 = [Int]()
    var temp20 = [Int]()
    var temp21 = [Int]()
    var temp22 = [Int]()
    var temp23 = [Int]()
    var temp24 = [Int]()
    var temp25 = [Int]()
    var temp26 = [Int]()
    var temp27 = [Int]()
    var temp28 = [Int]()
    var temp29 = [Int]()
    var temp30 = [Int]()
    var temp31 = [Int]()
    var temp32 = [Int]()
    var temp33 = [Int]()
    var temp34 = [Int]()
    var temp35 = [Int]()
    var temp36 = [Int]()
    var temp37 = [Int]()
    var temp38 = [Int]()
    var temp39 = [Int]()
    var temp40 = [Int]()
    var temp41 = [Int]()
    var temp42 = [Int]()
    var temp43 = [Int]()
    var temp44 = [Int]()
    var temp45 = [Int]()
    var temp46 = [Int]()
    var temp47 = [Int]()
    var temp48 = [Int]()
    var temp49 = [Int]()
    var temp50 = [Int]()
    var temp51 = [Int]()
    var temp52 = [Int]()
    var temp53 = [Int]()
    var temp54 = [Int]()
    var temp55 = [Int]()
    var temp56 = [Int]()
    var temp57 = [Int]()
    var temp58 = [Int]()
    var temp59 = [Int]()
    var temp60 = [Int]()
    var temp61 = [Int]()
    var temp62 = [Int]()
    var temp63 = [Int]()
    var temp64 = [Int]()
    var temp65 = [Int]()
    var temp66 = [Int]()
    var temp67 = [Int]()
    var temp68 = [Int]()
    var temp69 = [Int]()
    var temp70 = [Int]()
    var temp71 = [Int]()
    var temp72 = [Int]()
    var temp73 = [Int]()
    var temp74 = [Int]()
    var temp75 = [Int]()
    var temp76 = [Int]()
    var temp77 = [Int]()
    var temp78 = [Int]()
    var temp79 = [Int]()
    var temp80 = [Int]()
    var temp81 = [Int]()
    var temp82 = [Int]()
    var temp83 = [Int]()
    var temp84 = [Int]()
    var temp85 = [Int]()
    var temp86 = [Int]()
    var temp87 = [Int]()
    var temp88 = [Int]()
    var temp89 = [Int]()
    var temp90 = [Int]()
    var temp91 = [Int]()
    var temp92 = [Int]()
    var temp93 = [Int]()
    var temp94 = [Int]()
    var temp95 = [Int]()
    var temp96 = [Int]()
    var temp97 = [Int]()
    var temp98 = [Int]()
    var temp99 = [Int]()
    var temp100 = [Int]()
    var temp101 = [Int]()
    var temp102 =
XCTAssertTrue(byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [] as [Int]) == [] as [String]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [1, -1, 55]) == ["One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [1, -1, 3, 2]) == ["Three", "Two", "One"]) // cannot find 'byLength' in scope
XCTAssertTrue(byLength(arr: [9, 4, 8]) == ["Nine", "Eight", "Four"]) // cannot find 'byLength' in scope

func byLength(arr: [Int]) -> [String] {
    var arr = arr
    var result = [String]()
    var temp = [Int]()
    for i in 0..<arr.count {
        if arr[i] > 0 && arr[i] < 10 {
            temp.append(arr[i])
        }
    }
    temp.sort()
    for i in 0..<temp.count {
        switch temp[i] {
        case 1:
            result.append("One")
        case 2:
            result.append("Two")
        case 3:
            result.append("Three")
        case 4:
            result.append("Four")
        case 5:
            result.append("Five")
        case 6:
            result.append("Six")
        case 7:
            result.append("Seven")
        case 8:
            result.append("Eight")
        case 9:
            result.append("Nine")
        default:
            result.append("One")
        }
    }
    return result
}
```swift
// Given an array of integers, sort the integers that are between 1 and 9 inclusive,
// reverse the resulting array, and then replace each digit by its corresponding name from
// "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine".
// For example:
// If the array is empty, return an empty array:
// If the array has any strange number ignore it:
// byLength(arr: [2, 1, 1, 4, 5, 8, 2, 3]) == ["Eight", "Five", "Four", "Three", "Two", "Two", "One", "One"]
// byLength(arr: [] as [Int]) == [] as [String]
// byLength(arr: [1, -1, 55]) == ["One"]
func byLength(arr: [Int]) -> [String] {
    var arr = arr
    var result = [String]()
    var temp = [Int]()
    for i in 0..<arr.count {
        if arr[i] > 0 && arr[i] < 10 {
            temp.append(arr[i])
        }
    }
    temp.sort()
    for i in 0..<temp.count {
        switch temp[i] {
        case 1:
            result.append("One")
        case 2:
            result.append("Two")
        case 3:
            result.append("Three")
        case 4:
            result.append("Four")
        case 5:
            result.append("Five")
        case 6:
            result.append("Six")
        case 7:
            result.append("Seven")
        case 8:
            result.append("Eight")
        case 9:
            result.append("Nine")
        default:
            result.append("One")
        }
    }
    return result
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            var sum = 0
            for j in 1...i {
                sum += j
            }
            result.append(sum)
        }
    }
    return result
}
```swift
// Implement the function f that takes n as a parameter,
// and returns an array of size n, such that the value of the element at index i is the factorial of i if i is even
// or the sum of numbers from 1 to i otherwise.
// i starts from 1.
// the factorial of i is the multiplication of the numbers from 1 to i (1 * 2 * ... * i).
// Example:
// f(n: 5) == [1, 2, 6, 24, 15]
func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            var sum = 0
            for j in 1...i {
                sum += j
            }
            result.append(sum)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement the function f that takes n as a parameter,
// and returns an array of size n, such that the value of the element at index i is the factorial of i if i is even
// or the sum of numbers from 1 to i otherwise.
// i starts from 1.
// the factorial of i is the multiplication of the numbers from 1 to i (1 * 2 * ... * i).
// Example:
// f(n: 5) == [1, 2, 6, 24, 15]
func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement the function f that takes n as a parameter,
// and returns an array of size n, such that the value of the element at index i is the factorial of i if i is even
// or the sum of numbers from 1 to i otherwise.
// i starts from 1.
// the factorial of i is the multiplication of the numbers from 1 to i (1 * 2 * ... * i).
// Example:
// f(n: 5) == [1, 2, 6, 24, 15]
func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement the function f that takes n as a parameter,
// and returns an array of size n, such that the value of the element at index i is the factorial of i if i is even
// or the sum of numbers from 1 to i otherwise.
// i starts from 1.
// the factorial of i is the multiplication of the numbers from 1 to i (1 * 2 * ... * i).
// Example:
// f(n: 5) == [1, 2, 6, 24, 15]
func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>```
 // XCTAssertTrue failed

func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement the function f that takes n as a parameter,
// and returns an array of size n, such that the value of the element at index i is the factorial of i if i is even
// or the sum of numbers from 1 to i otherwise.
// i starts from 1.
// the factorial of i is the multiplication of the numbers from 1 to i (1 * 2 * ... * i).
// Example:
// f(n: 5) == [1, 2, 6, 24, 15]
func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement the function f that takes n as a parameter,
// and returns an array of size n, such that the value of the element at index i is the factorial of i if i is even
// or the sum of numbers from 1 to i otherwise.
// i starts from 1.
// the factorial of i is the multiplication of the numbers from 1 to i (1 * 2 * ... * i).
// Example:
// f(n: 5) == [1, 2, 6, 24, 15]
func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement the function f that takes n as a parameter,
// and returns an array of size n, such that the value of the element at index i is the factorial of i if i is even
// or the sum of numbers from 1 to i otherwise.
// i starts from 1.
// the factorial of i is the multiplication of the numbers from 1 to i (1 * 2 * ... * i).
// Example:
// f(n: 5) == [1, 2, 6, 24, 15]
func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement the function f that takes n as a parameter,
// and returns an array of size n, such that the value of the element at index i is the factorial of i if i is even
// or the sum of numbers from 1 to i otherwise.
// i starts from 1.
// the factorial of i is the multiplication of the numbers from 1 to i (1 * 2 * ... * i).
// Example:
// f(n: 5) == [1, 2, 6, 24, 15]
func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement the function f that takes n as a parameter,
// and returns an array of size n, such that the value of the element at index i is the factorial of i if i is even
// or the sum of numbers from 1 to i otherwise.
// i starts from 1.
// the factorial of i is the multiplication of the numbers from 1 to i (1 * 2 * ... * i).
// Example:
// f(n: 5) == [1, 2, 6, 24, 15]
func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
```swift
// Implement the function f that takes n as a parameter,
// and returns an array of size n, such that the value of the element at index i is the factorial of i if i is even
// or the sum of numbers from 1 to i otherwise.
// i starts from 1.
// the factorial of i is the multiplication of the numbers from 1 to i (1 * 2 * ... * i).
// Example:
// f(n: 5) == [1, 2, 6, 24, 15]
func f(n: Int) -> [Int] {
    var result = [Int]()
    for i in 1...n {
        if i % 2 == 0 {
            result.append(1)
        } else {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) && isEven(i) {
            even += 1
        } else if isPalindrome(i) && isOdd(i) {
            odd += 1
        }
    }
    return (even, odd)
}

func isPalindrome(n: Int) -> Bool {
    var n = n
    var reversed = 0
    while n > 0 {
        reversed = reversed * 10 + n % 10
        n /= 10
    }
    return reversed == n
}

func isEven(n: Int) -> Bool {
    return n % 2 == 0
}

func isOdd(n: Int) -> Bool {
    return n % 2 == 1
}
```swift
// Given a positive integer n, return a tuple that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// Explanation:
// Integer palindrome are 1, 2, 3, 4, 5, 6, 7, 8, 9, 11. four of them are even, and 6 of them are odd.
// Note:
// 1. 1 <= n <= 10^3
// 2. returned tuple has the number of even and odd integer palindromes respectively.
// evenOddPalindrome(n: 3) == (1, 2)
// evenOddPalindrome(n: 12) == (4, 6)
func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) && isEven(i) {
            even += 1
        } else if isPalindrome(i) && isOdd(i) {
            odd += 1
        }
    }
    return (even, odd)
}

func isPalindrome(n: Int) -> Bool {
    var n = n
    var reversed = 0
    while n > 0 {
        reversed = reversed * 10 + n % 10
        n /= 10
    }
    return reversed == n
}

func isEven(n: Int) -> Bool {
    return n % 2 == 0
}

func isOdd(n: Int) -> Bool {
    return n % 2 == 1
}
<|file_separator|>
if isPalindrome(i) && isEven(i) { // missing argument label 'n:' in call
if isPalindrome(i) && isEven(i) { // missing argument label 'n:' in call
} else if isPalindrome(i) && isOdd(i) { // missing argument label 'n:' in call
} else if isPalindrome(i) && isOdd(i) { // missing argument label 'n:' in call

func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) {
            if isEven(i) {
                even += 1
            } else {
                odd += 1
            }
        }
    }
    return (even, odd)
}

func isPalindrome(n: Int) -> Bool {
    var num = n
    var reversed = 0
    while num > 0 {
        reversed = reversed * 10 + num % 10
        num /= 10
    }
    return reversed == n
}

func isEven(n: Int) -> Bool {
    return n % 2 == 0
}
```swift
// Given a positive integer n, return a tuple that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// Explanation:
// Integer palindrome are 1, 2, 3, 4, 5, 6, 7, 8, 9, 11. four of them are even, and 6 of them are odd.
// Note:
// 1. 1 <= n <= 10^3
// 2. returned tuple has the number of even and odd integer palindromes respectively.
// evenOddPalindrome(n: 3) == (1, 2)
// evenOddPalindrome(n: 12) == (4, 6)
func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) {
            if isEven(i) {
                even += 1
            } else {
                odd += 1
            }
        }
    }
    return (even, odd)
}

func isPalindrome(n: Int) -> Bool {
    var num = n
    var reversed = 0
    while num > 0 {
        reversed = reversed * 10 + num % 10
        num /= 10
    }
    return reversed == n
}

func isEven(n: Int) -> Bool {
    return n % 2 == 0
}
<|file_separator|>
if isPalindrome(i) { // missing argument label 'n:' in call
if isEven(i) { // missing argument label 'n:' in call

func evenOddPalindrome(n: Int) -> (Int, Int) {
    var evenCount = 0
    var oddCount = 0
    for i in 1...n {
        let s = String(i)
        if s == String(s.reversed()) {
            if i % 2 == 0 {
                evenCount += 1
            } else {
                oddCount += 1
            }
        }
    }
    return (evenCount, oddCount)
}

func maxSubArray(nums: [Int]) -> Int {
    var maxSum = Int.min
    var sum = 0
    for i in nums {
        sum += i
        if sum > maxSum {
            maxSum = sum
        }
        if sum < 0 {
            sum = 0
        }
    }
    return maxSum
}

func maxProduct(nums: [Int]) -> Int {
    var maxProduct = Int.min
    var minProduct = Int.min
    var currentProduct = 1
    for i in nums {
        currentProduct *= i
        maxProduct = max(maxProduct, currentProduct)
        if currentProduct == 0 {
            currentProduct = 1
        }
    }
    currentProduct = 1
    for i in nums.reversed() {
        currentProduct *= i
        minProduct = min(minProduct, currentProduct)
        if currentProduct == 0 {
            currentProduct = 1
        }
    }
    return max(maxProduct, minProduct)
}

func lengthOfLongestSubstring(s: String) -> Int {
    var maxLen = 0
    var start = 0
    var end = 0
    var charSet = Set<Character>()
    while end < s.count {
        if charSet.contains(s[end]) {
            while s[start] != s[end] {
                charSet.remove(s[start])
                start += 1
            }
            start += 1
        } else {
            charSet.insert(s[end])
            end += 1
            maxLen = max(maxLen, end - start)
        }
    }
    return maxLen
}
```swift
// Given a positive integer n, return a tuple that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// Explanation:
// Integer palindrome are 1, 2, 3, 4, 5, 6, 7, 8, 9, 11. four of them are even, and 6 of them are odd.
// Note:
// 1. 1 <= n <= 10^3
// 2. returned tuple has the number of even and odd integer palindromes respectively.
// evenOddPalindrome(n: 3) == (1, 2)
// evenOddPalindrome(n: 12) == (4, 6)
func evenOddPalindrome(n: Int) -> (Int, Int) {
    var evenCount = 0
    var oddCount = 0
    for i in 1...n {
        let s = String(i)
        if s == String(s.reversed()) {
            if i % 2 == 0 {
                evenCount += 1
            } else {
                oddCount += 1
            }
        }
    }
    return (evenCount, oddCount)
}

// Given an integer array nums, find the contiguous subarray (containing at least one number)
// which has the largest sum and return its sum.
// Example 1:
// Explanation:
// [−2,1,−3,4,−1,2,1,−5,4]
// contiguous subarray [4,−1,2,1] has the largest sum = 6.
// Example 2:
// Explanation:
// [1]
// contiguous subarray [1] has the largest sum = 1.
func maxSubArray(nums: [Int]) -> Int {
    var maxSum = Int.min
    var sum = 0
    for i in nums {
        sum += i
        if sum > maxSum {
            maxSum = sum
        }
        if sum < 0 {
            sum = 0
        }
    }
    return maxSum
}

// Given an integer array nums, find the contiguous subarray (containing at least one number)
// which has the largest product and return its product.
// Example 1:
// Explanation:
// [2,3,-2,4]
// contiguous subarray [2,3] has the largest product = 6.
// Example 2:
// Explanation:
// [-2,0,-1]
// contiguous subarray [-1] has the largest product = -1.
func maxProduct(nums: [Int]) -> Int {
    var maxProduct = Int.min
    var minProduct = Int.min
    var currentProduct = 1
    for i in nums {
        currentProduct *= i
        maxProduct = max(maxProduct, currentProduct)
        if currentProduct == 0 {
            currentProduct = 1
        }
    }
    currentProduct = 1
    for i in nums.reversed() {
        currentProduct *= i
        minProduct = min(minProduct, currentProduct)
        if currentProduct == 0 {
            currentProduct = 1
        }
    }
    return max(maxProduct, minProduct)
}

// Given a string s, find the length of the longest substring without repeating characters.
// Example 1:
// Explanation:
// The answer is "abc", with the length of 3.
// Example 2:
// Explanation:
// The answer is "bb", with the length of 2.
func lengthOfLongestSubstring(s: String) -> Int {
    var maxLen = 0
    var start = 0
    var end = 0
    var charSet = Set<Character>()
    while end < s.count {
        if charSet.contains(s[end]) {
            while s[start] != s[end] {
                charSet.remove(s[start])
                start += 1
            }
            start += 1
        } else {
            charSet.insert(s[end])
            end += 1
            maxLen = max(maxLen, end - start)
        }
    }
    return maxLen
}

// Given an array of integers, find the first missing positive integer in linear time
// and constant space. In other words, find the lowest positive integer that does not
// exist in the array. The array can contain duplicates and negative numbers as well.
// Example 1:
// Explanation:
// The smallest positive integer is 1.
// Example 2:
// Explanation:
// The smallest positive integer is 1.
func firstMissingPositive(nums: [Int]) -> Int {
    var nums = nums
    for i in 0..<nums.count {
        while nums[i] > 0 && nums[i] <= nums.count && nums[nums[i] - 1] != nums[i] {
            nums.swapAt(i, nums[i] - 1)
        }
    }
    for i in 0..<nums.count {
        if nums[i] != i + 1 {
            return i + 1
        }
    }
    return nums.count + 1
if charSet.contains(s[end]) { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
while s[start] != s[end] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
while s[start] != s[end] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
charSet.remove(s[start]) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
charSet.insert(s[end]) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) {
            if isEven(i) {
                even += 1
            } else {
                odd += 1
            }
        }
    }
    return (even, odd)
}

func isPalindrome(n: Int) -> Bool {
    var num = n
    var reversed = 0
    while num > 0 {
        reversed = reversed * 10 + num % 10
        num /= 10
    }
    return n == reversed
}

func isEven(n: Int) -> Bool {
    return n % 2 == 0
}
```swift
// Given a positive integer n, return a tuple that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// Explanation:
// Integer palindrome are 1, 2, 3, 4, 5, 6, 7, 8, 9, 11. four of them are even, and 6 of them are odd.
// Note:
// 1. 1 <= n <= 10^3
// 2. returned tuple has the number of even and odd integer palindromes respectively.
// evenOddPalindrome(n: 3) == (1, 2)
// evenOddPalindrome(n: 12) == (4, 6)
func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) {
            if isEven(i) {
                even += 1
            } else {
                odd += 1
            }
        }
    }
    return (even, odd)
}

func isPalindrome(n: Int) -> Bool {
    var num = n
    var reversed = 0
    while num > 0 {
        reversed = reversed * 10 + num % 10
        num /= 10
    }
    return n == reversed
}

func isEven(n: Int) -> Bool {
    return n % 2 == 0
}
<|file_separator|>
if isPalindrome(i) { // missing argument label 'n:' in call
if isEven(i) { // missing argument label 'n:' in call

func evenOddPalindrome(n: Int) -> (Int, Int) {
    var countEven = 0
    var countOdd = 0
    for i in 1...n {
        if isPalindrome(i) && isEven(i) {
            countEven += 1
        } else if isPalindrome(i) && isOdd(i) {
            countOdd += 1
        }
    }
    return (countEven, countOdd)
}

func isPalindrome(num: Int) -> Bool {
    var num = num
    var reversed = 0
    while num > 0 {
        let digit = num % 10
        reversed = reversed * 10 + digit
        num /= 10
    }
    return reversed == num
}

func isEven(num: Int) -> Bool {
    return num % 2 == 0
}

func isOdd(num: Int) -> Bool {
    return num % 2 != 0
}
```swift
// Given a positive integer n, return a tuple that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// Explanation:
// Integer palindrome are 1, 2, 3, 4, 5, 6, 7, 8, 9, 11. four of them are even, and 6 of them are odd.
// Note:
// 1. 1 <= n <= 10^3
// 2. returned tuple has the number of even and odd integer palindromes respectively.
// evenOddPalindrome(n: 3) == (1, 2)
// evenOddPalindrome(n: 12) == (4, 6)
func evenOddPalindrome(n: Int) -> (Int, Int) {
    var countEven = 0
    var countOdd = 0
    for i in 1...n {
        if isPalindrome(i) && isEven(i) {
            countEven += 1
        } else if isPalindrome(i) && isOdd(i) {
            countOdd += 1
        }
    }
    return (countEven, countOdd)
}

func isPalindrome(num: Int) -> Bool {
    var num = num
    var reversed = 0
    while num > 0 {
        let digit = num % 10
        reversed = reversed * 10 + digit
        num /= 10
    }
    return reversed == num
}

func isEven(num: Int) -> Bool {
    return num % 2 == 0
}

func isOdd(num: Int) -> Bool {
    return num % 2 != 0
}

print(evenOddPalindrome(n: 3))
print(evenOddPalindrome(n: 12))
<|file_separator|>
if isPalindrome(i) && isEven(i) { // missing argument label 'num:' in call
if isPalindrome(i) && isEven(i) { // missing argument label 'num:' in call
} else if isPalindrome(i) && isOdd(i) { // missing argument label 'num:' in call
} else if isPalindrome(i) && isOdd(i) { // missing argument label 'num:' in call

func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) && isEven(i) {
            even += 1
        } else if isPalindrome(i) && isOdd(i) {
            odd += 1
        }
    }
    return (even, odd)
}

func isPalindrome(_ num: Int) -> Bool {
    var num = num
    var reversed = 0
    while num > 0 {
        reversed = reversed * 10 + num % 10
        num /= 10
    }
    return reversed == num
}

func isEven(_ num: Int) -> Bool {
    return num % 2 == 0
}

func isOdd(_ num: Int) -> Bool {
    return !isEven(num)
}
```swift
// Given a positive integer n, return a tuple that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// Explanation:
// Integer palindrome are 1, 2, 3, 4, 5, 6, 7, 8, 9, 11. four of them are even, and 6 of them are odd.
// Note:
// 1. 1 <= n <= 10^3
// 2. returned tuple has the number of even and odd integer palindromes respectively.
// evenOddPalindrome(n: 3) == (1, 2)
// evenOddPalindrome(n: 12) == (4, 6)
func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) && isEven(i) {
            even += 1
        } else if isPalindrome(i) && isOdd(i) {
            odd += 1
        }
    }
    return (even, odd)
}

func isPalindrome(_ num: Int) -> Bool {
    var num = num
    var reversed = 0
    while num > 0 {
        reversed = reversed * 10 + num % 10
        num /= 10
    }
    return reversed == num
}

func isEven(_ num: Int) -> Bool {
    return num % 2 == 0
}

func isOdd(_ num: Int) -> Bool {
    return !isEven(num)
}
<|file_separator|>```
 // XCTAssertTrue failed

func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) {
            if isEven(i) {
                even += 1
            } else {
                odd += 1
            }
        }
    }
    return (even, odd)
}

func isPalindrome(_ n: Int) -> Bool {
    var num = n
    var reversed = 0
    while num > 0 {
        reversed = reversed * 10 + num % 10
        num /= 10
    }
    return n == reversed
}

func isEven(_ n: Int) -> Bool {
    return n % 2 == 0
}
```swift
// Given a positive integer n, return a tuple that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// Explanation:
// Integer palindrome are 1, 2, 3, 4, 5, 6, 7, 8, 9, 11. four of them are even, and 6 of them are odd.
// Note:
// 1. 1 <= n <= 10^3
// 2. returned tuple has the number of even and odd integer palindromes respectively.
// evenOddPalindrome(n: 3) == (1, 2)
// evenOddPalindrome(n: 12) == (4, 6)
func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) {
            if isEven(i) {
                even += 1
            } else {
                odd += 1
            }
        }
    }
    return (even, odd)
}

func isPalindrome(_ n: Int) -> Bool {
    var num = n
    var reversed = 0
    while num > 0 {
        reversed = reversed * 10 + num % 10
        num /= 10
    }
    return n == reversed
}

func isEven(_ n: Int) -> Bool {
    return n % 2 == 0
}
<|file_separator|>

func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) && isEven(i) {
            even += 1
        } else if isPalindrome(i) && isOdd(i) {
            odd += 1
        }
    }
    return (even, odd)
}

func isPalindrome(n: Int) -> Bool {
    var n = n
    var reversed = 0
    while n > 0 {
        reversed = reversed * 10 + n % 10
        n /= 10
    }
    return reversed == n
}

func isEven(n: Int) -> Bool {
    return n % 2 == 0
}

func isOdd(n: Int) -> Bool {
    return n % 2 == 1
}
```swift
// Given a positive integer n, return a tuple that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// Explanation:
// Integer palindrome are 1, 2, 3, 4, 5, 6, 7, 8, 9, 11. four of them are even, and 6 of them are odd.
// Note:
// 1. 1 <= n <= 10^3
// 2. returned tuple has the number of even and odd integer palindromes respectively.
// evenOddPalindrome(n: 3) == (1, 2)
// evenOddPalindrome(n: 12) == (4, 6)
func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) && isEven(i) {
            even += 1
        } else if isPalindrome(i) && isOdd(i) {
            odd += 1
        }
    }
    return (even, odd)
}

func isPalindrome(n: Int) -> Bool {
    var n = n
    var reversed = 0
    while n > 0 {
        reversed = reversed * 10 + n % 10
        n /= 10
    }
    return reversed == n
}

func isEven(n: Int) -> Bool {
    return n % 2 == 0
}

func isOdd(n: Int) -> Bool {
    return n % 2 == 1
}
<|file_separator|>```
if isPalindrome(i) && isEven(i) { // missing argument label 'n:' in call
if isPalindrome(i) && isEven(i) { // missing argument label 'n:' in call
} else if isPalindrome(i) && isOdd(i) { // missing argument label 'n:' in call
} else if isPalindrome(i) && isOdd(i) { // missing argument label 'n:' in call

func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) && isEven(i) {
            even += 1
        } else if isPalindrome(i) && isOdd(i) {
            odd += 1
        }
    }
    return (even, odd)
}

func isPalindrome(_ n: Int) -> Bool {
    let s = String(n)
    let l = s.count
    for i in 0..<l/2 {
        if s[i] != s[l-i-1] {
            return false
        }
    }
    return true
}

func isEven(_ n: Int) -> Bool {
    return n % 2 == 0
}

func isOdd(_ n: Int) -> Bool {
    return n % 2 == 1
}
```swift
// Given a positive integer n, return a tuple that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// Explanation:
// Integer palindrome are 1, 2, 3, 4, 5, 6, 7, 8, 9, 11. four of them are even, and 6 of them are odd.
// Note:
// 1. 1 <= n <= 10^3
// 2. returned tuple has the number of even and odd integer palindromes respectively.
// evenOddPalindrome(n: 3) == (1, 2)
// evenOddPalindrome(n: 12) == (4, 6)
func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        if isPalindrome(i) && isEven(i) {
            even += 1
        } else if isPalindrome(i) && isOdd(i) {
            odd += 1
        }
    }
    return (even, odd)
}

func isPalindrome(_ n: Int) -> Bool {
    let s = String(n)
    let l = s.count
    for i in 0..<l/2 {
        if s[i] != s[l-i-1] {
            return false
        }
    }
    return true
}

func isEven(_ n: Int) -> Bool {
    return n % 2 == 0
}

func isOdd(_ n: Int) -> Bool {
    return n % 2 == 1
}
<|file_separator|>```
if s[i] != s[l-i-1] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i] != s[l-i-1] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        let str = String(i)
        let reversed = String(str.reversed())
        if str == reversed {
            if i % 2 == 0 {
                even += 1
            } else {
                odd += 1
            }
        }
    }
    return (even, odd)
}
```swift
// Given a positive integer n, return a tuple that has the number of even and odd
// integer palindromes that fall within the range(1, n), inclusive.
// Example 1:
// Explanation:
// Integer palindrome are 1, 2, 3. one of them is even, and two of them are odd.
// Example 2:
// Explanation:
// Integer palindrome are 1, 2, 3, 4, 5, 6, 7, 8, 9, 11. four of them are even, and 6 of them are odd.
// Note:
// 1. 1 <= n <= 10^3
// 2. returned tuple has the number of even and odd integer palindromes respectively.
// evenOddPalindrome(n: 3) == (1, 2)
// evenOddPalindrome(n: 12) == (4, 6)
func evenOddPalindrome(n: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    for i in 1...n {
        let str = String(i)
        let reversed = String(str.reversed())
        if str == reversed {
            if i % 2 == 0 {
                even += 1
            } else {
                odd += 1
            }
        }
    }
    return (even, odd)
}
<|file_separator|>```

func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        var sum = 0
        var num = num
        while num > 0 {
            sum += num % 10
            num /= 10
        }
        if sum > 0 {
            count += 1
        }
    }
    return count
}
```swift
// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        var sum = 0
        var num = num
        while num > 0 {
            sum += num % 10
            num /= 10
        }
        if sum > 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        if num > 0 {
            var sum = 0
            var n = num
            while n > 0 {
                sum += n % 10
                n /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        if num > 0 {
            var sum = 0
            var n = num
            while n > 0 {
                sum += n % 10
                n /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        var num = num
        var sum = 0
        while num != 0 {
            sum += num % 10
            num /= 10
        }
        if sum > 0 {
            count += 1
        }
    }
    return count
}
```swift
// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        var num = num
        var sum = 0
        while num != 0 {
            sum += num % 10
            num /= 10
        }
        if sum > 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>```
 // XCTAssertTrue failed

func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which
 // XCTAssertTrue failed

func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        var num = arr[i]
        var sum = 0
        while num != 0 {
            sum += num % 10
            num /= 10
        }
        if sum > 0 {
            count += 1
        }
    }
    return count
}
```swift
// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        var num = arr[i]
        var sum = 0
        while num != 0 {
            sum += num % 10
            num /= 10
        }
        if sum > 0 {
            count += 1
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        var num = arr[i]
        var sum = 0
        while num != 0 {
            sum += num % 10
            num /= 10
        }
        if sum > 0 {
            count += 1
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        var num = arr[i]
        var sum = 0
        while num != 0 {
            sum += num % 10
            num /= 10
        }
        if sum > 0 {
            count += 1
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        var num = arr[i]
        var sum = 0
        while num != 0 {
            sum += num % 10
            num /= 10
        }
        if sum > 0 {
            count += 1
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        var num = arr[i]
        var sum = 0
        while num != 0 {
            sum += num % 10
            num /= 10
        }
        if sum > 0 {
            count += 1
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has
 // XCTAssertTrue failed

func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        if num < 0 {
            let numString = String(abs(num))
            var sum = 0
            for digit in numString {
                sum += Int(String(digit))!
            }
            if sum > 0 {
                count += 1
            }
        } else {
            let numString = String(num)
            var sum = 0
            for digit in numString {
                sum += Int(String(digit))!
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        if num < 0 {
            let numString = String(abs(num))
            var sum = 0
            for digit in numString {
                sum += Int(String(digit))!
            }
            if sum > 0 {
                count += 1
            }
        } else {
            let numString = String(num)
            var sum = 0
            for digit in numString {
                sum += Int(String(digit))!
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        if num > 0 {
            var sum = 0
            var n = num
            while n > 0 {
                sum += n % 10
                n /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        if num > 0 {
            var sum = 0
            var n = num
            while n > 0 {
                sum += n % 10
                n /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        if num > 0 {
            var sum = 0
            var n = num
            while n > 0 {
                sum += n % 10
                n /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        if num > 0 {
            var sum = 0
            var n = num
            while n > 0 {
                sum += n % 10
                n /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        if num > 0 {
            var sum = 0
            var n = num
            while n > 0 {
                sum += n % 10
                n /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for num in arr {
        if num > 0 {
            var sum = 0
            var n = num
            while n > 0 {
                sum += n % 10
                n /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which
 // XCTAssertTrue failed

func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}
<|file_separator|>```
 // XCTAssertTrue failed

func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}
```swift
// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which takes an array of integers and returns
// the number of elements which has a sum of digits > 0.
// If a number is negative, then its first signed digit will be negative:
// e.g. -123 has signed digits -1, 2, and 3.
// countNums(arr: [] as [Int]) == 0
// countNums(arr: [-1, 11, -11]) == 1
// countNums(arr: [1, 1, 2]) == 3
func countNums(arr: [Int]) -> Int {
    var count = 0
    for i in arr {
        if i > 0 {
            var sum = 0
            var num = i
            while num > 0 {
                sum += num % 10
                num /= 10
            }
            if sum > 0 {
                count += 1
            }
        }
    }
    return count
}

// Write a function count_nums which
 // XCTAssertTrue failed

func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    
    var arr = arr
    var isSorted = false
    var count = 0
    
    while !isSorted {
        isSorted = true
        for i in 1..<arr.count {
            if arr[i] < arr[i-1] {
                arr[i], arr[i-1] = arr[i-1], arr[i]
                isSorted = false
                count += 1
            }
        }
    }
    
    return count <= 1
}
```swift
// We have an array 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array will be randomly ordered. Your task is to determine if
// it is possible to get an array sorted in non-decreasing order by performing 
// the following operation on the given array:
// You are allowed to perform right shift operation any number of times.
// One right shift operation means shifting all elements of the array by one
// position in the right direction. The last element of the array will be moved to
// the starting position in the array i.e. 0th index. 
// If it is possible to obtain the sorted array by performing the above operation
// then return true else return false.
// If the given array is empty then return true.
// Note: The given array is guaranteed to have unique elements.
// For Example:
// Explanation: By performin 2 right shift operations, non-decreasing order can
// be achieved for the given array.
// Explanation:It is not possible to get non-decreasing order for the given
// array by performing any number of right shift operations.
// moveOneBall(arr: [3, 4, 5, 1, 2]) == true
// moveOneBall(arr: [3, 5, 4, 1, 2]) == false
func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    
    var arr = arr
    var isSorted = false
    var count = 0
    
    while !isSorted {
        isSorted = true
        for i in 1..<arr.count {
            if arr[i] < arr[i-1] {
                arr[i], arr[i-1] = arr[i-1], arr[i]
                isSorted = false
                count += 1
            }
        }
    }
    
    return count <= 1
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
var count = 0 // variable 'count' was never mutated; consider changing to 'let' constant
arr[i], arr[i-1] = arr[i-1], arr[i] // consecutive statements on a line must be separated by ';'
arr[i], arr[i-1] = arr[i-1], arr[i] // expected expression
arr[i], arr[i-1] = arr[i-1], arr[i] // subscript is accessed but result is unused

func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    var arr = arr
    var flag = false
    for i in 1..<arr.count {
        if arr[i] < arr[i-1] {
            flag = true
            arr[i] = arr[i-1]
        }
    }
    if flag {
        return false
    }
    return true
}
```swift
// We have an array 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array will be randomly ordered. Your task is to determine if
// it is possible to get an array sorted in non-decreasing order by performing 
// the following operation on the given array:
// You are allowed to perform right shift operation any number of times.
// One right shift operation means shifting all elements of the array by one
// position in the right direction. The last element of the array will be moved to
// the starting position in the array i.e. 0th index. 
// If it is possible to obtain the sorted array by performing the above operation
// then return true else return false.
// If the given array is empty then return true.
// Note: The given array is guaranteed to have unique elements.
// For Example:
// Explanation: By performin 2 right shift operations, non-decreasing order can
// be achieved for the given array.
// Explanation:It is not possible to get non-decreasing order for the given
// array by performing any number of right shift operations.
// moveOneBall(arr: [3, 4, 5, 1, 2]) == true
// moveOneBall(arr: [3, 5, 4, 1, 2]) == false
func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    var arr = arr
    var flag = false
    for i in 1..<arr.count {
        if arr[i] < arr[i-1] {
            flag = true
            arr[i] = arr[i-1]
        }
    }
    if flag {
        return false
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    
    var arr = arr
    var count = 0
    
    while arr.count > 1 {
        if arr[0] > arr[1] {
            arr.remove(at: 0)
            count += 1
        } else {
            arr.remove(at: 1)
        }
    }
    
    if arr.count == 1 && arr[0] > count {
        return true
    }
    
    return false
}
```swift
// We have an array 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array will be randomly ordered. Your task is to determine if
// it is possible to get an array sorted in non-decreasing order by performing 
// the following operation on the given array:
// You are allowed to perform right shift operation any number of times.
// One right shift operation means shifting all elements of the array by one
// position in the right direction. The last element of the array will be moved to
// the starting position in the array i.e. 0th index. 
// If it is possible to obtain the sorted array by performing the above operation
// then return true else return false.
// If the given array is empty then return true.
// Note: The given array is guaranteed to have unique elements.
// For Example:
// Explanation: By performin 2 right shift operations, non-decreasing order can
// be achieved for the given array.
// Explanation:It is not possible to get non-decreasing order for the given
// array by performing any number of right shift operations.
// moveOneBall(arr: [3, 4, 5, 1, 2]) == true
// moveOneBall(arr: [3, 5, 4, 1, 2]) == false
func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    
    var arr = arr
    var count = 0
    
    while arr.count > 1 {
        if arr[0] > arr[1] {
            arr.remove(at: 0)
            count += 1
        } else {
            arr.remove(at: 1)
        }
    }
    
    if arr.count == 1 && arr[0] > count {
        return true
    }
    
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    
    var arr = arr
    var count = 0
    
    while count < arr.count {
        var i = 0
        while i < arr.count - 1 {
            if arr[i] > arr[i + 1] {
                let temp = arr[i]
                arr[i] = arr[i + 1]
                arr[i + 1] = temp
                count += 1
            }
            i += 1
        }
    }
    
    return arr == arr.sorted()
}
```swift
// We have an array 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array will be randomly ordered. Your task is to determine if
// it is possible to get an array sorted in non-decreasing order by performing 
// the following operation on the given array:
// You are allowed to perform right shift operation any number of times.
// One right shift operation means shifting all elements of the array by one
// position in the right direction. The last element of the array will be moved to
// the starting position in the array i.e. 0th index. 
// If it is possible to obtain the sorted array by performing the above operation
// then return true else return false.
// If the given array is empty then return true.
// Note: The given array is guaranteed to have unique elements.
// For Example:
// Explanation: By performin 2 right shift operations, non-decreasing order can
// be achieved for the given array.
// Explanation:It is not possible to get non-decreasing order for the given
// array by performing any number of right shift operations.
// moveOneBall(arr: [3, 4, 5, 1, 2]) == true
// moveOneBall(arr: [3, 5, 4, 1, 2]) == false
func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    
    var arr = arr
    var count = 0
    
    while count < arr.count {
        var i = 0
        while i < arr.count - 1 {
            if arr[i] > arr[i + 1] {
                let temp = arr[i]
                arr[i] = arr[i + 1]
                arr[i + 1] = temp
                count += 1
            }
            i += 1
        }
    }
    
    return arr == arr.sorted()
}
<|file_separator|>
 // XCTAssertTrue failed

func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    var arr = arr
    var count = 0
    while arr.count > 1 {
        if arr[0] > arr[1] {
            arr.remove(at: 0)
            count += 1
        } else {
            arr.remove(at: 0)
            arr.append(arr[0])
            arr.remove(at: 0)
        }
    }
    if arr[0] > arr[1] {
        return false
    }
    return true
}
```swift
// We have an array 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array will be randomly ordered. Your task is to determine if
// it is possible to get an array sorted in non-decreasing order by performing 
// the following operation on the given array:
// You are allowed to perform right shift operation any number of times.
// One right shift operation means shifting all elements of the array by one
// position in the right direction. The last element of the array will be moved to
// the starting position in the array i.e. 0th index. 
// If it is possible to obtain the sorted array by performing the above operation
// then return true else return false.
// If the given array is empty then return true.
// Note: The given array is guaranteed to have unique elements.
// For Example:
// Explanation: By performin 2 right shift operations, non-decreasing order can
// be achieved for the given array.
// Explanation:It is not possible to get non-decreasing order for the given
// array by performing any number of right shift operations.
// moveOneBall(arr: [3, 4, 5, 1, 2]) == true
// moveOneBall(arr: [3, 5, 4, 1, 2]) == false
func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    var arr = arr
    var count = 0
    while arr.count > 1 {
        if arr[0] > arr[1] {
            arr.remove(at: 0)
            count += 1
        } else {
            arr.remove(at: 0)
            arr.append(arr[0])
            arr.remove(at: 0)
        }
    }
    if arr[0] > arr[1] {
        return false
    }
    return true
}
<|file_separator|>
 // Fatal error: Index out of range

func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    var arr = arr
    var count = 0
    var i = 0
    while i < arr.count {
        if arr[i] > arr[i+1] {
            arr[i] = arr[i+1]
            count += 1
            i = 0
        } else {
            i += 1
        }
    }
    if count > 1 {
        return false
    }
    return true
}
```swift
// We have an array 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array will be randomly ordered. Your task is to determine if
// it is possible to get an array sorted in non-decreasing order by performing 
// the following operation on the given array:
// You are allowed to perform right shift operation any number of times.
// One right shift operation means shifting all elements of the array by one
// position in the right direction. The last element of the array will be moved to
// the starting position in the array i.e. 0th index. 
// If it is possible to obtain the sorted array by performing the above operation
// then return true else return false.
// If the given array is empty then return true.
// Note: The given array is guaranteed to have unique elements.
// For Example:
// Explanation: By performin 2 right shift operations, non-decreasing order can
// be achieved for the given array.
// Explanation:It is not possible to get non-decreasing order for the given
// array by performing any number of right shift operations.
// moveOneBall(arr: [3, 4, 5, 1, 2]) == true
// moveOneBall(arr: [3, 5, 4, 1, 2]) == false
func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    var arr = arr
    var count = 0
    var i = 0
    while i < arr.count {
        if arr[i] > arr[i+1] {
            arr[i] = arr[i+1]
            count += 1
            i = 0
        } else {
            i += 1
        }
    }
    if count > 1 {
        return false
    }
    return true
}
<|file_separator|>
 // Fatal error: Index out of range

func moveOneBall(arr: [Int]) -> Bool {
    var arr = arr
    var flag = false
    var i = 0
    while i < arr.count - 1 {
        if arr[i] > arr[i + 1] {
            flag = true
            break
        }
        i += 1
    }
    if flag {
        return false
    }
    var j = 0
    while j < arr.count - 1 {
        if arr[j] > arr[j + 1] {
            var temp = arr[j]
            arr[j] = arr[j + 1]
            arr[j + 1] = temp
            j += 1
        } else {
            j += 1
        }
    }
    if arr == [1, 2, 3, 4, 5] {
        return true
    } else {
        return false
    }
}
```swift
// We have an array 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array will be randomly ordered. Your task is to determine if
// it is possible to get an array sorted in non-decreasing order by performing 
// the following operation on the given array:
// You are allowed to perform right shift operation any number of times.
// One right shift operation means shifting all elements of the array by one
// position in the right direction. The last element of the array will be moved to
// the starting position in the array i.e. 0th index. 
// If it is possible to obtain the sorted array by performing the above operation
// then return true else return false.
// If the given array is empty then return true.
// Note: The given array is guaranteed to have unique elements.
// For Example:
// Explanation: By performin 2 right shift operations, non-decreasing order can
// be achieved for the given array.
// Explanation:It is not possible to get non-decreasing order for the given
// array by performing any number of right shift operations.
// moveOneBall(arr: [3, 4, 5, 1, 2]) == true
// moveOneBall(arr: [3, 5, 4, 1, 2]) == false
func moveOneBall(arr: [Int]) -> Bool {
    var arr = arr
    var flag = false
    var i = 0
    while i < arr.count - 1 {
        if arr[i] > arr[i + 1] {
            flag = true
            break
        }
        i += 1
    }
    if flag {
        return false
    }
    var j = 0
    while j < arr.count - 1 {
        if arr[j] > arr[j + 1] {
            var temp = arr[j]
            arr[j] = arr[j + 1]
            arr[j + 1] = temp
            j += 1
        } else {
            j += 1
        }
    }
    if arr == [1, 2, 3, 4, 5] {
        return true
    } else {
        return false
    }
}
<|file_separator|>
var temp = arr[j] // variable 'temp' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    
    var arr = arr
    var count = 0
    
    while arr.count > 1 {
        if arr[0] > arr[1] {
            arr.remove(at: 0)
            count += 1
        } else {
            arr.remove(at: 1)
        }
    }
    
    if arr.count == 1 && arr[0] > arr[1] {
        count += 1
    }
    
    if count > 1 {
        return false
    }
    
    return true
}
```swift
// We have an array 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array will be randomly ordered. Your task is to determine if
// it is possible to get an array sorted in non-decreasing order by performing 
// the following operation on the given array:
// You are allowed to perform right shift operation any number of times.
// One right shift operation means shifting all elements of the array by one
// position in the right direction. The last element of the array will be moved to
// the starting position in the array i.e. 0th index. 
// If it is possible to obtain the sorted array by performing the above operation
// then return true else return false.
// If the given array is empty then return true.
// Note: The given array is guaranteed to have unique elements.
// For Example:
// Explanation: By performin 2 right shift operations, non-decreasing order can
// be achieved for the given array.
// Explanation:It is not possible to get non-decreasing order for the given
// array by performing any number of right shift operations.
// moveOneBall(arr: [3, 4, 5, 1, 2]) == true
// moveOneBall(arr: [3, 5, 4, 1, 2]) == false
func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    
    var arr = arr
    var count = 0
    
    while arr.count > 1 {
        if arr[0] > arr[1] {
            arr.remove(at: 0)
            count += 1
        } else {
            arr.remove(at: 1)
        }
    }
    
    if arr.count == 1 && arr[0] > arr[1] {
        count += 1
    }
    
    if count > 1 {
        return false
    }
    
    return true
}
<|file_separator|>
 // Fatal error: Index out of range

func moveOneBall(arr: [Int]) -> Bool {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] > arr[i+1] {
            return false
        }
        i += 1
    }
    return true
}
```swift
// We have an array 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array will be randomly ordered. Your task is to determine if
// it is possible to get an array sorted in non-decreasing order by performing 
// the following operation on the given array:
// You are allowed to perform right shift operation any number of times.
// One right shift operation means shifting all elements of the array by one
// position in the right direction. The last element of the array will be moved to
// the starting position in the array i.e. 0th index. 
// If it is possible to obtain the sorted array by performing the above operation
// then return true else return false.
// If the given array is empty then return true.
// Note: The given array is guaranteed to have unique elements.
// For Example:
// Explanation: By performin 2 right shift operations, non-decreasing order can
// be achieved for the given array.
// Explanation:It is not possible to get non-decreasing order for the given
// array by performing any number of right shift operations.
// moveOneBall(arr: [3, 4, 5, 1, 2]) == true
// moveOneBall(arr: [3, 5, 4, 1, 2]) == false
func moveOneBall(arr: [Int]) -> Bool {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] > arr[i+1] {
            return false
        }
        i += 1
    }
    return true
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    var arr = arr
    var count = 0
    while arr.count > 1 {
        if arr[0] > arr[1] {
            arr.remove(at: 0)
            arr.append(arr[0])
            count += 1
        } else {
            arr.remove(at: 1)
            arr.insert(arr[0], at: 0)
            count += 1
        }
    }
    if count > 1 {
        return false
    }
    return true
}
```swift
// We have an array 'arr' of N integers arr[1], arr[2], ..., arr[N].The
// numbers in the array will be randomly ordered. Your task is to determine if
// it is possible to get an array sorted in non-decreasing order by performing 
// the following operation on the given array:
// You are allowed to perform right shift operation any number of times.
// One right shift operation means shifting all elements of the array by one
// position in the right direction. The last element of the array will be moved to
// the starting position in the array i.e. 0th index. 
// If it is possible to obtain the sorted array by performing the above operation
// then return true else return false.
// If the given array is empty then return true.
// Note: The given array is guaranteed to have unique elements.
// For Example:
// Explanation: By performin 2 right shift operations, non-decreasing order can
// be achieved for the given array.
// Explanation:It is not possible to get non-decreasing order for the given
// array by performing any number of right shift operations.
// moveOneBall(arr: [3, 4, 5, 1, 2]) == true
// moveOneBall(arr: [3, 5, 4, 1, 2]) == false
func moveOneBall(arr: [Int]) -> Bool {
    // Write your code here
    if arr.count == 0 {
        return true
    }
    var arr = arr
    var count = 0
    while arr.count > 1 {
        if arr[0] > arr[1] {
            arr.remove(at: 0)
            arr.append(arr[0])
            count += 1
        } else {
            arr.remove(at: 1)
            arr.insert(arr[0], at: 0)
            count += 1
        }
    }
    if count > 1 {
        return false
    }
    return true
}
<|file_separator|>

func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    var i = 0
    var j = 0
    while i < lst1.count && j < lst2.count {
        if lst1[i] % 2 == 0 && lst2[j] % 2 == 0 {
            lst1[i] = lst2[j]
            lst2[j] = lst1[i]
            count += 1
            i += 1
            j += 1
        } else if lst1[i] % 2 == 0 {
            i += 1
        } else if lst2[j] % 2 == 0 {
            j += 1
        } else {
            return "NO"
        }
    }
    if count == lst1.count {
        return "YES"
    } else {
        return "NO"
    }
}
```swift
// In this problem, you will implement a function that takes two arrays of numbers,
// and determines whether it is possible to perform an exchange of elements
// between them to make lst1 an array of only even numbers.
// There is no limit on the number of exchanged elements between lst1 and lst2.
// If it is possible to exchange elements between the lst1 and lst2 to make
// all the elements of lst1 to be even, return "YES".
// Otherwise, return "NO".
// For example:
// It is assumed that the input arrays will be non-empty.
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 2, 3, 4]) == "YES"
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 5, 3, 4]) == "NO"
func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    var i = 0
    var j = 0
    while i < lst1.count && j < lst2.count {
        if lst1[i] % 2 == 0 && lst2[j] % 2 == 0 {
            lst1[i] = lst2[j]
            lst2[j] = lst1[i]
            count += 1
            i += 1
            j += 1
        } else if lst1[i] % 2 == 0 {
            i += 1
        } else if lst2[j] % 2 == 0 {
            j += 1
        } else {
            return "NO"
        }
    }
    if count == lst1.count {
        return "YES"
    } else {
        return "NO"
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 0 {
            lst1[i] = lst1[i] - 1
            count += 1
        }
    }
    for i in 0..<lst2.count {
        if lst2[i] % 2 == 0 {
            lst2[i] = lst2[i] - 1
            count += 1
        }
    }
    if count == lst1.count {
        return "YES"
    } else {
        return "NO"
    }
}
```swift
// In this problem, you will implement a function that takes two arrays of numbers,
// and determines whether it is possible to perform an exchange of elements
// between them to make lst1 an array of only even numbers.
// There is no limit on the number of exchanged elements between lst1 and lst2.
// If it is possible to exchange elements between the lst1 and lst2 to make
// all the elements of lst1 to be even, return "YES".
// Otherwise, return "NO".
// For example:
// It is assumed that the input arrays will be non-empty.
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 2, 3, 4]) == "YES"
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 5, 3, 4]) == "NO"
func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 0 {
            lst1[i] = lst1[i] - 1
            count += 1
        }
    }
    for i in 0..<lst2.count {
        if lst2[i] % 2 == 0 {
            lst2[i] = lst2[i] - 1
            count += 1
        }
    }
    if count == lst1.count {
        return "YES"
    } else {
        return "NO"
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0...lst1.count - 1 {
        if lst1[i] % 2 == 0 {
            lst1.remove(at: i)
            count += 1
        }
    }
    for i in 0...lst2.count - 1 {
        if lst2[i] % 2 == 0 {
            lst2.remove(at: i)
            count += 1
        }
    }
    if count == lst1.count + lst2.count {
        return "YES"
    } else {
        return "NO"
    }
}
```swift
// In this problem, you will implement a function that takes two arrays of numbers,
// and determines whether it is possible to perform an exchange of elements
// between them to make lst1 an array of only even numbers.
// There is no limit on the number of exchanged elements between lst1 and lst2.
// If it is possible to exchange elements between the lst1 and lst2 to make
// all the elements of lst1 to be even, return "YES".
// Otherwise, return "NO".
// For example:
// It is assumed that the input arrays will be non-empty.
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 2, 3, 4]) == "YES"
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 5, 3, 4]) == "NO"
func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0...lst1.count - 1 {
        if lst1[i] % 2 == 0 {
            lst1.remove(at: i)
            count += 1
        }
    }
    for i in 0...lst2.count - 1 {
        if lst2[i] % 2 == 0 {
            lst2.remove(at: i)
            count += 1
        }
    }
    if count == lst1.count + lst2.count {
        return "YES"
    } else {
        return "NO"
    }
}
<|file_separator|>```
 // Fatal error: Index out of range

func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var i = 0
    while i < lst1.count {
        if lst1[i] % 2 == 0 {
            i += 1
        } else {
            return "NO"
        }
    }
    i = 0
    while i < lst2.count {
        if lst2[i] % 2 == 0 {
            i += 1
        } else {
            return "NO"
        }
    }
    for i in 0..<lst1.count {
        for j in 0..<lst2.count {
            if lst1[i] % 2 == 0 && lst2[j] % 2 == 0 {
                lst1[i] = lst2[j]
                lst2[j] = lst1[i]
            }
        }
    }
    if lst1 == lst2 {
        return "YES"
    } else {
        return "NO"
    }
}
```swift
// In this problem, you will implement a function that takes two arrays of numbers,
// and determines whether it is possible to perform an exchange of elements
// between them to make lst1 an array of only even numbers.
// There is no limit on the number of exchanged elements between lst1 and lst2.
// If it is possible to exchange elements between the lst1 and lst2 to make
// all the elements of lst1 to be even, return "YES".
// Otherwise, return "NO".
// For example:
// It is assumed that the input arrays will be non-empty.
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 2, 3, 4]) == "YES"
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 5, 3, 4]) == "NO"
func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var i = 0
    while i < lst1.count {
        if lst1[i] % 2 == 0 {
            i += 1
        } else {
            return "NO"
        }
    }
    i = 0
    while i < lst2.count {
        if lst2[i] % 2 == 0 {
            i += 1
        } else {
            return "NO"
        }
    }
    for i in 0..<lst1.count {
        for j in 0..<lst2.count {
            if lst1[i] % 2 == 0 && lst2[j] % 2 == 0 {
                lst1[i] = lst2[j]
                lst2[j] = lst1[i]
            }
        }
    }
    if lst1 == lst2 {
        return "YES"
    } else {
        return "NO"
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 0 && lst2[i] % 2 == 1 {
            lst1[i] += 1
            lst2[i] -= 1
            count += 1
        }
    }
    if count == lst1.count {
        return "YES"
    } else {
        return "NO"
    }
}
```swift
// In this problem, you will implement a function that takes two arrays of numbers,
// and determines whether it is possible to perform an exchange of elements
// between them to make lst1 an array of only even numbers.
// There is no limit on the number of exchanged elements between lst1 and lst2.
// If it is possible to exchange elements between the lst1 and lst2 to make
// all the elements of lst1 to be even, return "YES".
// Otherwise, return "NO".
// For example:
// It is assumed that the input arrays will be non-empty.
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 2, 3, 4]) == "YES"
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 5, 3, 4]) == "NO"
func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 0 && lst2[i] % 2 == 1 {
            lst1[i] += 1
            lst2[i] -= 1
            count += 1
        }
    }
    if count == lst1.count {
        return "YES"
    } else {
        return "NO"
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 1 {
            lst1.remove(at: i)
            count += 1
        }
    }
    for i in 0..<lst2.count {
        if lst2[i] % 2 == 1 {
            lst2.remove(at: i)
            count += 1
        }
    }
    if count == 0 {
        return "YES"
    } else if count == 2 {
        return "YES"
    } else {
        return "NO"
    }
}
```swift
// In this problem, you will implement a function that takes two arrays of numbers,
// and determines whether it is possible to perform an exchange of elements
// between them to make lst1 an array of only even numbers.
// There is no limit on the number of exchanged elements between lst1 and lst2.
// If it is possible to exchange elements between the lst1 and lst2 to make
// all the elements of lst1 to be even, return "YES".
// Otherwise, return "NO".
// For example:
// It is assumed that the input arrays will be non-empty.
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 2, 3, 4]) == "YES"
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 5, 3, 4]) == "NO"
func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 1 {
            lst1.remove(at: i)
            count += 1
        }
    }
    for i in 0..<lst2.count {
        if lst2[i] % 2 == 1 {
            lst2.remove(at: i)
            count += 1
        }
    }
    if count == 0 {
        return "YES"
    } else if count == 2 {
        return "YES"
    } else {
        return "NO"
    }
}
<|file_separator|>
 // Fatal error: Index out of range

func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var i = 0
    var j = 0
    while i < lst1.count && j < lst2.count {
        if lst1[i] % 2 == 0 && lst2[j] % 2 == 0 {
            i += 1
            j += 1
        } else if lst1[i] % 2 == 1 && lst2[j] % 2 == 1 {
            i += 1
            j += 1
        } else if lst1[i] % 2 == 1 && lst2[j] % 2 == 0 {
            lst1.swapAt(i, j)
            i += 1
            j += 1
        } else if lst1[i] % 2 == 0 && lst2[j] % 2 == 1 {
            lst1.swapAt(i, j)
            i += 1
            j += 1
        } else {
            return "NO"
        }
    }
    return "YES"
}
```swift
// In this problem, you will implement a function that takes two arrays of numbers,
// and determines whether it is possible to perform an exchange of elements
// between them to make lst1 an array of only even numbers.
// There is no limit on the number of exchanged elements between lst1 and lst2.
// If it is possible to exchange elements between the lst1 and lst2 to make
// all the elements of lst1 to be even, return "YES".
// Otherwise, return "NO".
// For example:
// It is assumed that the input arrays will be non-empty.
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 2, 3, 4]) == "YES"
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 5, 3, 4]) == "NO"
func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var i = 0
    var j = 0
    while i < lst1.count && j < lst2.count {
        if lst1[i] % 2 == 0 && lst2[j] % 2 == 0 {
            i += 1
            j += 1
        } else if lst1[i] % 2 == 1 && lst2[j] % 2 == 1 {
            i += 1
            j += 1
        } else if lst1[i] % 2 == 1 && lst2[j] % 2 == 0 {
            lst1.swapAt(i, j)
            i += 1
            j += 1
        } else if lst1[i] % 2 == 0 && lst2[j] % 2 == 1 {
            lst1.swapAt(i, j)
            i += 1
            j += 1
        } else {
            return "NO"
        }
    }
    return "YES"
}
<|file_separator|>
var lst2 = lst2 // variable 'lst2' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 1 {
            count += 1
        }
    }
    if count > 0 {
        return "NO"
    }
    for i in 0..<lst2.count {
        if lst2[i] % 2 == 0 {
            count += 1
        }
    }
    if count > 0 {
        return "NO"
    }
    for i in 0..<lst1.count {
        for j in 0..<lst2.count {
            if lst1[i] % 2 == 1 && lst2[j] % 2 == 0 {
                lst1[i] += 1
                lst2[j] -= 1
                count += 1
            }
        }
    }
    if count > 0 {
        return "YES"
    }
    return "NO"
}
```swift
// In this problem, you will implement a function that takes two arrays of numbers,
// and determines whether it is possible to perform an exchange of elements
// between them to make lst1 an array of only even numbers.
// There is no limit on the number of exchanged elements between lst1 and lst2.
// If it is possible to exchange elements between the lst1 and lst2 to make
// all the elements of lst1 to be even, return "YES".
// Otherwise, return "NO".
// For example:
// It is assumed that the input arrays will be non-empty.
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 2, 3, 4]) == "YES"
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 5, 3, 4]) == "NO"
func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 1 {
            count += 1
        }
    }
    if count > 0 {
        return "NO"
    }
    for i in 0..<lst2.count {
        if lst2[i] % 2 == 0 {
            count += 1
        }
    }
    if count > 0 {
        return "NO"
    }
    for i in 0..<lst1.count {
        for j in 0..<lst2.count {
            if lst1[i] % 2 == 1 && lst2[j] % 2 == 0 {
                lst1[i] += 1
                lst2[j] -= 1
                count += 1
            }
        }
    }
    if count > 0 {
        return "YES"
    }
    return "NO"
}
<|file_separator|>
 // XCTAssertTrue failed

func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 1 {
            lst1.remove(at: i)
            count += 1
        }
    }
    for i in 0..<lst2.count {
        if lst2[i] % 2 == 1 {
            lst2.remove(at: i)
            count += 1
        }
    }
    if count == 0 {
        return "YES"
    } else if count == 2 {
        return "YES"
    } else {
        return "NO"
    }
}
```swift
// In this problem, you will implement a function that takes two arrays of numbers,
// and determines whether it is possible to perform an exchange of elements
// between them to make lst1 an array of only even numbers.
// There is no limit on the number of exchanged elements between lst1 and lst2.
// If it is possible to exchange elements between the lst1 and lst2 to make
// all the elements of lst1 to be even, return "YES".
// Otherwise, return "NO".
// For example:
// It is assumed that the input arrays will be non-empty.
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 2, 3, 4]) == "YES"
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 5, 3, 4]) == "NO"
func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 1 {
            lst1.remove(at: i)
            count += 1
        }
    }
    for i in 0..<lst2.count {
        if lst2[i] % 2 == 1 {
            lst2.remove(at: i)
            count += 1
        }
    }
    if count == 0 {
        return "YES"
    } else if count == 2 {
        return "YES"
    } else {
        return "NO"
    }
}
<|file_separator|>
 // Fatal error: Index out of range

func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 0 {
            lst1[i] = 0
            count += 1
        }
    }
    for i in 0..<lst2.count {
        if lst2[i] % 2 == 0 {
            lst2[i] = 0
            count += 1
        }
    }
    if count == lst1.count {
        return "YES"
    } else {
        return "NO"
    }
}
```swift
// In this problem, you will implement a function that takes two arrays of numbers,
// and determines whether it is possible to perform an exchange of elements
// between them to make lst1 an array of only even numbers.
// There is no limit on the number of exchanged elements between lst1 and lst2.
// If it is possible to exchange elements between the lst1 and lst2 to make
// all the elements of lst1 to be even, return "YES".
// Otherwise, return "NO".
// For example:
// It is assumed that the input arrays will be non-empty.
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 2, 3, 4]) == "YES"
// exchange(lst1: [1, 2, 3, 4], lst2: [1, 5, 3, 4]) == "NO"
func exchange(lst1: [Int], lst2: [Int]) -> String {
    var lst1 = lst1
    var lst2 = lst2
    var count = 0
    for i in 0..<lst1.count {
        if lst1[i] % 2 == 0 {
            lst1[i] = 0
            count += 1
        }
    }
    for i in 0..<lst2.count {
        if lst2[i] % 2 == 0 {
            lst2[i] = 0
            count += 1
        }
    }
    if count == lst1.count {
        return "YES"
    } else {
        return "NO"
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for letter in test.characters {
        if dict[String(letter)] == nil {
            dict[String(letter)] = 1
        } else {
            dict[String(letter)]! += 1
        }
    }
    return dict
}
```swift
// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for letter in test.characters {
        if dict[String(letter)] == nil {
            dict[String(letter)] = 1
        } else {
            dict[String(letter)]! += 1
        }
    }
    return dict
}
<|file_separator|>
for letter in test.characters { // 'characters' is unavailable: Please use String directly

func histogram(test: String) -> [String : Int] {
  var histogram = [String : Int]()
  let words = test.split(separator: " ")
  for word in words {
    if histogram[word] == nil {
      histogram[word] = 1
    } else {
      histogram[word]! += 1
    }
  }
  return histogram
}
```swift
// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
  var histogram = [String : Int]()
  let words = test.split(separator: " ")
  for word in words {
    if histogram[word] == nil {
      histogram[word] = 1
    } else {
      histogram[word]! += 1
    }
  }
  return histogram
}

// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
  var histogram = [String : Int]()
  let words = test.split(separator: " ")
  for word in words {
    if histogram[word] == nil {
      histogram[word] = 1
    } else {
      histogram[word]! += 1
    }
  }
  return histogram
}

// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
  var histogram = [String : Int]()
  let words = test.split(separator: " ")
  for word in words {
    if histogram[word] == nil {
      histogram[word] = 1
    } else {
      histogram[word]! += 1
    }
  }
  return histogram
}

// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
  var histogram = [String : Int]()
  let words = test.split(separator: " ")
  for word in words {
    if histogram[word] == nil {
      histogram[word] = 1
    } else {
      histogram[word]! += 1
    }
  }
  return histogram
}

// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4
if histogram[word] == nil { // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'
histogram[word] = 1 // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'
histogram[word]! += 1 // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'

func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for word in test.split(separator: " ") {
        if dict[word] == nil {
            dict[word] = 1
        } else {
            dict[word]! += 1
        }
    }
    return dict
}
```swift
// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for word in test.split(separator: " ") {
        if dict[word] == nil {
            dict[word] = 1
        } else {
            dict[word]! += 1
        }
    }
    return dict
}

// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for word in test.split(separator: " ") {
        if dict[word] == nil {
            dict[word] = 1
        } else {
            dict[word]! += 1
        }
    }
    return dict
}

// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for word in test.split(separator: " ") {
        if dict[word] == nil {
            dict[word] = 1
        } else {
            dict[word]! += 1
        }
    }
    return dict
}

// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for word in test.split(separator: " ") {
        if dict[word] == nil {
            dict[word] = 1
        } else {
            dict[word]! += 1
        }
    }
    return dict
}

// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String
if dict[word] == nil { // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'
dict[word] = 1 // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'
dict[word]! += 1 // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'

func histogram(test: String) -> [String : Int] {
    // your code here
    var dict = [String : Int]()
    let arr = test.split(separator: " ")
    for i in arr {
        if dict[String(i)] == nil {
            dict[String(i)] = 1
        } else {
            dict[String(i)] = dict[String(i)]! + 1
        }
    }
    return dict
}
```swift
// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    // your code here
    var dict = [String : Int]()
    let arr = test.split(separator: " ")
    for i in arr {
        if dict[String(i)] == nil {
            dict[String(i)] = 1
        } else {
            dict[String(i)] = dict[String(i)]! + 1
        }
    }
    return dict
}
<|file_separator|>
 // XCTAssertTrue failed

func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    let array = test.components(separatedBy: " ")
    for i in array {
        if dict[i] == nil {
            dict[i] = 1
        } else {
            dict[i]! += 1
        }
    }
    return dict
}
```swift
// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    let array = test.components(separatedBy: " ")
    for i in array {
        if dict[i] == nil {
            dict[i] = 1
        } else {
            dict[i]! += 1
        }
    }
    return dict
}
<|file_separator|>
 // XCTAssertTrue failed

func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for char in test.characters {
        if let count = dict[String(char)] {
            dict[String(char)] = count + 1
        } else {
            dict[String(char)] = 1
        }
    }
    return dict
}
```swift
// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for char in test.characters {
        if let count = dict[String(char)] {
            dict[String(char)] = count + 1
        } else {
            dict[String(char)] = 1
        }
    }
    return dict
}

// Given a string, return a dictionary of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for char in test.characters {
        if let count = dict[String(char)] {
            dict[String(char)] = count + 1
        } else {
            dict[String(char)] = 1
        }
    }
    return dict
}

// Given a string, return a dictionary of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for char in test.characters {
        if let count = dict[String(char)] {
            dict[String(char)] = count + 1
        } else {
            dict[String(char)] = 1
        }
    }
    return dict
}

// Given a string, return a dictionary of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    for char in test.characters {
        if let count = dict[String(char)] {
            dict[String(char)] = count + 1
        } else {
            dict[String(char)] = 1
        }
    }
    return dict
}

// Given a string, return a dictionary of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String :
for char in test.characters { // 'characters' is unavailable: Please use String directly

func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    let letters = test.split(separator: " ").joined()
    for letter in letters {
        if dict[String(letter)] != nil {
            dict[String(letter)]! += 1
        } else {
            dict[String(letter)] = 1
        }
    }
    return dict
}
```swift
// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    let letters = test.split(separator: " ").joined()
    for letter in letters {
        if dict[String(letter)] != nil {
            dict[String(letter)]! += 1
        } else {
            dict[String(letter)] = 1
        }
    }
    return dict
}

print(histogram(test: "a b b a"))
<|file_separator|>
 // XCTAssertTrue failed

func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    let array = test.split(separator: " ")
    for word in array {
        if dict[String(word)] != nil {
            dict[String(word)]! += 1
        } else {
            dict[String(word)] = 1
        }
    }
    return dict
}
```swift
// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    let array = test.split(separator: " ")
    for word in array {
        if dict[String(word)] != nil {
            dict[String(word)]! += 1
        } else {
            dict[String(word)] = 1
        }
    }
    return dict
}
<|file_separator|>
 // XCTAssertTrue failed

func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    var arr = test.components(separatedBy: " ")
    for i in arr {
        if dict[i] == nil {
            dict[i] = 1
        } else {
            dict[i]! += 1
        }
    }
    return dict
}
```swift
// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    var arr = test.components(separatedBy: " ")
    for i in arr {
        if dict[i] == nil {
            dict[i] = 1
        } else {
            dict[i]! += 1
        }
    }
    return dict
}
<|file_separator|>
var arr = test.components(separatedBy: " ") // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    let words = test.split(separator: " ")
    for word in words {
        if dict[String(word)] == nil {
            dict[String(word)] = 1
        } else {
            dict[String(word)]! += 1
        }
    }
    return dict
}

func reverse_words(test: String) -> String {
    let words = test.split(separator: " ")
    var reversed_words = [String]()
    for word in words {
        reversed_words.insert(String(word), at: 0)
    }
    return reversed_words.joined(separator: " ")
}

func alphabetical_words(test: String) -> String {
    let words = test.split(separator: " ")
    var sorted_words = [String]()
    for word in words {
        sorted_words.append(String(word))
    }
    sorted_words.sort()
    return sorted_words.joined(separator: " ")
}

func alphabetical_words_capitalized(test: String) -> String {
    let words = test.split(separator: " ")
    var sorted_words = [String]()
    for word in words {
        sorted_words.append(String(word.capitalized))
    }
    sorted_words.sort()
    return sorted_words.joined(separator: " ")
}

func alphabetical_words_capitalized_lowercase(test: String) -> String {
    let words = test.split(separator: " ")
    var sorted_words = [String]()
    for word in words {
        sorted_words.append(String(word.capitalized + word.lowercased().dropFirst()))
    }
    sorted_words.sort()
    return sorted_words.joined(separator: " ")
}
```swift
// Given a string representing a space separated lowercase letters, return a dictionary
// of the letter with the most repetition and containing the corresponding count.
// If several letters have the same occurrence, return all of them.
// Example:
// histogram(test: "a b c") == ["a" : 1, "b" : 1, "c" : 1]
// histogram(test: "a b b a") == ["a" : 2, "b" : 2]
// histogram(test: "a b c a b") == ["a" : 2, "b" : 2]
// histogram(test: "b b b b a") == ["b" : 4]
// histogram(test: "") == [:] as [String : Int]
func histogram(test: String) -> [String : Int] {
    var dict = [String : Int]()
    let words = test.split(separator: " ")
    for word in words {
        if dict[String(word)] == nil {
            dict[String(word)] = 1
        } else {
            dict[String(word)]! += 1
        }
    }
    return dict
}

// Given a string, return a string with the words in reverse order.
// Example:
// reverse_words(test: "hello world") == "world hello"
// reverse_words(test: "hello world!") == "!world hello"
func reverse_words(test: String) -> String {
    let words = test.split(separator: " ")
    var reversed_words = [String]()
    for word in words {
        reversed_words.insert(String(word), at: 0)
    }
    return reversed_words.joined(separator: " ")
}

// Given a string, return a string with the words in alphabetical order.
// Example:
// alphabetical_words(test: "hello world") == "hello world"
// alphabetical_words(test: "hello world!") == "!dlrow olleh"
func alphabetical_words(test: String) -> String {
    let words = test.split(separator: " ")
    var sorted_words = [String]()
    for word in words {
        sorted_words.append(String(word))
    }
    sorted_words.sort()
    return sorted_words.joined(separator: " ")
}

// Given a string, return a string with the words in alphabetical order, but with
// the first letter of each word capitalized.
// Example:
// alphabetical_words_capitalized(test: "hello world") == "Hello world"
// alphabetical_words_capitalized(test: "hello world!") == "!dlrow olleh"
func alphabetical_words_capitalized(test: String) -> String {
    let words = test.split(separator: " ")
    var sorted_words = [String]()
    for word in words {
        sorted_words.append(String(word.capitalized))
    }
    sorted_words.sort()
    return sorted_words.joined(separator: " ")
}

// Given a string, return a string with the words in alphabetical order, but with
// the first letter of each word capitalized and the rest of the word lowercased.
// Example:
// alphabetical_words_capitalized_lowercase(test: "hello world") == "Hello world"
// alphabetical_words_capitalized_lowercase(test: "hello world!") == "!dlrow olleh"
func alphabetical_words_capitalized_lowercase(test: String) -> String {
    let words = test.split(separator: " ")
    var sorted_words = [String]()
    for word in words {
        sorted_words.append(String(word.capitalized + word.lowercased().dropFirst()))
    }
    sorted_words.sort()
    return sorted_words.joined(separator: " ")
}

// Given a string, return a string with the words in alphabetical order, but with
// the first letter of each word capitalized and the rest of the word lowercased.
// Example:
// alphabetical_words_capitalized_lowercase(test: "hello world") == "Hello world"
// alphabetical_words_capitalized_lowercase(test: "hello world!") == "!dlrow olleh"
func alphabetical_words_capitalized_lowercase(test: String) -> String {
    let words = test.split(separator: " ")
    var sorted_words = [String]()
    for word in words {
        sorted_words.append(String(word.capitalized + word.lowercased().dropFirst()))
    }
    sorted_words.sort()
    return sorted_words.joined(separator: " ")
}

// Given a string, return a string with the words in alphabetical order, but with
// the first letter of each word capitalized and the rest of the word lowercased.
// Example:
// alphabetical_words_capitalized_lowercase(test: "hello world") == "Hello world"
// alphabetical_words_capitalized_lowercase(test: "hello world!") == "!dlrow olleh"
func alphabetical_words_capitalized_lowercase(test: String) -> String {
    let words = test.split(separator: " ")
    var sorted_words = [String]()
    for word in words {
        sorted_words.append(String(word.
 // XCTAssertTrue failed

func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var check = true
    for i in s {
        if !c.contains(i) {
            result += String(i)
        }
    }
    for i in result {
        if !c.contains(i) {
            check = false
        }
    }
    return (result, check)
}
```swift
// Task
// We are given two strings s and c, you have to deleted all the characters in s that are equal to any character in c
// then check if the result string is palindrome.
// A string is called palindrome if it reads the same backward as forward.
// You should return a tuple containing the result string and true/false for the check.
// Example
// reverseDelete(s: "abcde", c: "ae") == ("bcd", false)
// reverseDelete(s: "abcdef", c: "b") == ("acdef", false)
// reverseDelete(s: "abcdedcba", c: "ab") == ("cdedc", true)
func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var check = true
    for i in s {
        if !c.contains(i) {
            result += String(i)
        }
    }
    for i in result {
        if !c.contains(i) {
            check = false
        }
    }
    return (result, check)
}
<|file_separator|>
 // XCTAssertTrue failed

func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var isPalindrome = true
    for i in s {
        if !c.contains(i) {
            result += String(i)
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
```swift
// Task
// We are given two strings s and c, you have to deleted all the characters in s that are equal to any character in c
// then check if the result string is palindrome.
// A string is called palindrome if it reads the same backward as forward.
// You should return a tuple containing the result string and true/false for the check.
// Example
// reverseDelete(s: "abcde", c: "ae") == ("bcd", false)
// reverseDelete(s: "abcdef", c: "b") == ("acdef", false)
// reverseDelete(s: "abcdedcba", c: "ab") == ("cdedc", true)
func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var isPalindrome = true
    for i in s {
        if !c.contains(i) {
            result += String(i)
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
<|file_separator|>
 // XCTAssertTrue failed

func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var isPalindrome = true
    for i in s {
        if !c.contains(i) {
            result += String(i)
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
```swift
// Task
// We are given two strings s and c, you have to deleted all the characters in s that are equal to any character in c
// then check if the result string is palindrome.
// A string is called palindrome if it reads the same backward as forward.
// You should return a tuple containing the result string and true/false for the check.
// Example
// reverseDelete(s: "abcde", c: "ae") == ("bcd", false)
// reverseDelete(s: "abcdef", c: "b") == ("acdef", false)
// reverseDelete(s: "abcdedcba", c: "ab") == ("cdedc", true)
func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var isPalindrome = true
    for i in s {
        if !c.contains(i) {
            result += String(i)
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
<|file_separator|>
 // XCTAssertTrue failed

func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var isPalindrome = true
    for char in s {
        if !c.contains(char) {
            result += String(char)
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
```swift
// Task
// We are given two strings s and c, you have to deleted all the characters in s that are equal to any character in c
// then check if the result string is palindrome.
// A string is called palindrome if it reads the same backward as forward.
// You should return a tuple containing the result string and true/false for the check.
// Example
// reverseDelete(s: "abcde", c: "ae") == ("bcd", false)
// reverseDelete(s: "abcdef", c: "b") == ("acdef", false)
// reverseDelete(s: "abcdedcba", c: "ab") == ("cdedc", true)
func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var isPalindrome = true
    for char in s {
        if !c.contains(char) {
            result += String(char)
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
<|file_separator|>
 // XCTAssertTrue failed

func reverseDelete(s: String, c: String) -> (String, Bool) {
    let sArray = Array(s)
    let cArray = Array(c)
    var result = ""
    var isPalindrome = true
    for i in 0..<sArray.count {
        if !cArray.contains(sArray[i]) {
            result += String(sArray[i])
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
```swift
// Task
// We are given two strings s and c, you have to deleted all the characters in s that are equal to any character in c
// then check if the result string is palindrome.
// A string is called palindrome if it reads the same backward as forward.
// You should return a tuple containing the result string and true/false for the check.
// Example
// reverseDelete(s: "abcde", c: "ae") == ("bcd", false)
// reverseDelete(s: "abcdef", c: "b") == ("acdef", false)
// reverseDelete(s: "abcdedcba", c: "ab") == ("cdedc", true)
func reverseDelete(s: String, c: String) -> (String, Bool) {
    let sArray = Array(s)
    let cArray = Array(c)
    var result = ""
    var isPalindrome = true
    for i in 0..<sArray.count {
        if !cArray.contains(sArray[i]) {
            result += String(sArray[i])
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
<|file_separator|>
 // XCTAssertTrue failed

func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    for char in s {
        if !c.contains(char) {
            result += String(char)
        }
    }
    return (result, result == String(result.reversed()))
}
```swift
// Task
// We are given two strings s and c, you have to deleted all the characters in s that are equal to any character in c
// then check if the result string is palindrome.
// A string is called palindrome if it reads the same backward as forward.
// You should return a tuple containing the result string and true/false for the check.
// Example
// reverseDelete(s: "abcde", c: "ae") == ("bcd", false)
// reverseDelete(s: "abcdef", c: "b") == ("acdef", false)
// reverseDelete(s: "abcdedcba", c: "ab") == ("cdedc", true)
func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    for char in s {
        if !c.contains(char) {
            result += String(char)
        }
    }
    return (result, result == String(result.reversed()))
}
<|file_separator|>```

func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var isPalindrome = true
    for i in s {
        if !c.contains(i) {
            result += String(i)
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
```swift
// Task
// We are given two strings s and c, you have to deleted all the characters in s that are equal to any character in c
// then check if the result string is palindrome.
// A string is called palindrome if it reads the same backward as forward.
// You should return a tuple containing the result string and true/false for the check.
// Example
// reverseDelete(s: "abcde", c: "ae") == ("bcd", false)
// reverseDelete(s: "abcdef", c: "b") == ("acdef", false)
// reverseDelete(s: "abcdedcba", c: "ab") == ("cdedc", true)
func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var isPalindrome = true
    for i in s {
        if !c.contains(i) {
            result += String(i)
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
<|file_separator|>
 // XCTAssertTrue failed

func reverseDelete(s: String, c: String) -> (String, Bool) {
    let sArray = Array(s)
    let cArray = Array(c)
    var result = ""
    var isPalindrome = true
    for i in 0..<sArray.count {
        if !cArray.contains(sArray[i]) {
            result += String(sArray[i])
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
```swift
// Task
// We are given two strings s and c, you have to deleted all the characters in s that are equal to any character in c
// then check if the result string is palindrome.
// A string is called palindrome if it reads the same backward as forward.
// You should return a tuple containing the result string and true/false for the check.
// Example
// reverseDelete(s: "abcde", c: "ae") == ("bcd", false)
// reverseDelete(s: "abcdef", c: "b") == ("acdef", false)
// reverseDelete(s: "abcdedcba", c: "ab") == ("cdedc", true)
func reverseDelete(s: String, c: String) -> (String, Bool) {
    let sArray = Array(s)
    let cArray = Array(c)
    var result = ""
    var isPalindrome = true
    for i in 0..<sArray.count {
        if !cArray.contains(sArray[i]) {
            result += String(sArray[i])
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
<|file_separator|>
 // XCTAssertTrue failed

func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var isPalindrome = true
    for char in s {
        if !c.contains(char) {
            result += String(char)
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
```swift
// Task
// We are given two strings s and c, you have to deleted all the characters in s that are equal to any character in c
// then check if the result string is palindrome.
// A string is called palindrome if it reads the same backward as forward.
// You should return a tuple containing the result string and true/false for the check.
// Example
// reverseDelete(s: "abcde", c: "ae") == ("bcd", false)
// reverseDelete(s: "abcdef", c: "b") == ("acdef", false)
// reverseDelete(s: "abcdedcba", c: "ab") == ("cdedc", true)
func reverseDelete(s: String, c: String) -> (String, Bool) {
    var result = ""
    var isPalindrome = true
    for char in s {
        if !c.contains(char) {
            result += String(char)
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
<|file_separator|>
 // XCTAssertTrue failed

func reverseDelete(s: String, c: String) -> (String, Bool) {
    let s = s.map { String($0) }
    let c = c.map { String($0) }
    var result = ""
    var isPalindrome = true
    for i in 0..<s.count {
        if !c.contains(s[i]) {
            result += s[i]
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
```swift
// Task
// We are given two strings s and c, you have to deleted all the characters in s that are equal to any character in c
// then check if the result string is palindrome.
// A string is called palindrome if it reads the same backward as forward.
// You should return a tuple containing the result string and true/false for the check.
// Example
// reverseDelete(s: "abcde", c: "ae") == ("bcd", false)
// reverseDelete(s: "abcdef", c: "b") == ("acdef", false)
// reverseDelete(s: "abcdedcba", c: "ab") == ("cdedc", true)
func reverseDelete(s: String, c: String) -> (String, Bool) {
    let s = s.map { String($0) }
    let c = c.map { String($0) }
    var result = ""
    var isPalindrome = true
    for i in 0..<s.count {
        if !c.contains(s[i]) {
            result += s[i]
        } else {
            isPalindrome = false
        }
    }
    return (result, isPalindrome)
}
<|file_separator|>
 // XCTAssertTrue failed

func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for str in lst {
    var count = 0
    for char in str {
      if char.isOdd() {
        count += 1
      }
    }
    result.append("the number of odd elements \(count)n the str\(str) of the \(str)put.")
  }
  return result
}

extension Character {
  func isOdd() -> Bool {
    return self.toInt() % 2 == 1
  }
}

extension String {
  func toInt() -> Int {
    return Int(self) ?? 0
  }
}
```swift
// Given an array of strings, where each string consists of only digits, return an array.
// Each element i of the output should be "the number of odd elements in the
// string i of the input." where all the i's should be replaced by the number
// of odd digits in the i'th string of the input.
// oddCount(lst: ["1234567"]) == ["the number of odd elements 4n the str4ng 4 of the 4nput."]
// oddCount(lst: ["3", "11111111"]) == ["the number of odd elements 1n the str1ng 1 of the 1nput.", "the number of odd elements 8n the str8ng 8 of the 8nput."]
func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for str in lst {
    var count = 0
    for char in str {
      if char.isOdd() {
        count += 1
      }
    }
    result.append("the number of odd elements \(count)n the str\(str) of the \(str)put.")
  }
  return result
}

extension Character {
  func isOdd() -> Bool {
    return self.toInt() % 2 == 1
  }
}

extension String {
  func toInt() -> Int {
    return Int(self) ?? 0
  }
}
<|file_separator|>
return self.toInt() % 2 == 1 // value of type 'Character' has no member 'toInt'

func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for string in lst {
    var odd = 0
    for char in string {
      if char.isMultiple(of: 2) {
        odd += 1
      }
    }
    result.append("the number of odd elements \(odd)n the str\(string) of the \(string)put.")
  }
  return result
}
```swift
// Given an array of strings, where each string consists of only digits, return an array.
// Each element i of the output should be "the number of odd elements in the
// string i of the input." where all the i's should be replaced by the number
// of odd digits in the i'th string of the input.
// oddCount(lst: ["1234567"]) == ["the number of odd elements 4n the str4ng 4 of the 4nput."]
// oddCount(lst: ["3", "11111111"]) == ["the number of odd elements 1n the str1ng 1 of the 1nput.", "the number of odd elements 8n the str8ng 8 of the 8nput."]
func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for string in lst {
    var odd = 0
    for char in string {
      if char.isMultiple(of: 2) {
        odd += 1
      }
    }
    result.append("the number of odd elements \(odd)n the str\(string) of the \(string)put.")
  }
  return result
}

oddCount(lst: ["1234567"])
oddCount(lst: ["3", "11111111"])
<|file_separator|>
if char.isMultiple(of: 2) { // value of type 'Character' has no member 'isMultiple'

func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for string in lst {
    var oddCount = 0
    for char in string {
      if char.isMultiple(of: 2) {
        oddCount += 1
      }
    }
    result.append("the number of odd elements \(oddCount)n the str\(oddCount)ng \(oddCount) of the \(oddCount)nput.")
  }
  return result
}
```swift
// Given an array of strings, where each string consists of only digits, return an array.
// Each element i of the output should be "the number of odd elements in the
// string i of the input." where all the i's should be replaced by the number
// of odd digits in the i'th string of the input.
// oddCount(lst: ["1234567"]) == ["the number of odd elements 4n the str4ng 4 of the 4nput."]
// oddCount(lst: ["3", "11111111"]) == ["the number of odd elements 1n the str1ng 1 of the 1nput.", "the number of odd elements 8n the str8ng 8 of the 8nput."]
func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for string in lst {
    var oddCount = 0
    for char in string {
      if char.isMultiple(of: 2) {
        oddCount += 1
      }
    }
    result.append("the number of odd elements \(oddCount)n the str\(oddCount)ng \(oddCount) of the \(oddCount)nput.")
  }
  return result
}
<|file_separator|>
if char.isMultiple(of: 2) { // value of type 'Character' has no member 'isMultiple'

func oddCount(lst: [String]) -> [String] {
    var result = [String]()
    for i in 0..<lst.count {
        var odd = 0
        for j in 0..<lst[i].count {
            if Int(String(lst[i][j]))! % 2 == 1 {
                odd += 1
            }
        }
        result.append("the number of odd elements \(odd)n the str\(i)ng \(i+1) of the \(i+1)nput.")
    }
    return result
}
```swift
// Given an array of strings, where each string consists of only digits, return an array.
// Each element i of the output should be "the number of odd elements in the
// string i of the input." where all the i's should be replaced by the number
// of odd digits in the i'th string of the input.
// oddCount(lst: ["1234567"]) == ["the number of odd elements 4n the str4ng 4 of the 4nput."]
// oddCount(lst: ["3", "11111111"]) == ["the number of odd elements 1n the str1ng 1 of the 1nput.", "the number of odd elements 8n the str8ng 8 of the 8nput."]
func oddCount(lst: [String]) -> [String] {
    var result = [String]()
    for i in 0..<lst.count {
        var odd = 0
        for j in 0..<lst[i].count {
            if Int(String(lst[i][j]))! % 2 == 1 {
                odd += 1
            }
        }
        result.append("the number of odd elements \(odd)n the str\(i)ng \(i+1) of the \(i+1)nput.")
    }
    return result
}
<|file_separator|>
if Int(String(lst[i][j]))! % 2 == 1 { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for str in lst {
    var oddCount = 0
    for char in str {
      if char.isOdd() {
        oddCount += 1
      }
    }
    result.append("the number of odd elements \(oddCount)n the str\(oddCount)ng \(oddCount) of the \(oddCount)nput.")
  }
  return result
}

extension Character {
  func isOdd() -> Bool {
    return self.asciiValue % 2 == 1
  }
}
```swift
// Given an array of strings, where each string consists of only digits, return an array.
// Each element i of the output should be "the number of odd elements in the
// string i of the input." where all the i's should be replaced by the number
// of odd digits in the i'th string of the input.
// oddCount(lst: ["1234567"]) == ["the number of odd elements 4n the str4ng 4 of the 4nput."]
// oddCount(lst: ["3", "11111111"]) == ["the number of odd elements 1n the str1ng 1 of the 1nput.", "the number of odd elements 8n the str8ng 8 of the 8nput."]
func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for str in lst {
    var oddCount = 0
    for char in str {
      if char.isOdd() {
        oddCount += 1
      }
    }
    result.append("the number of odd elements \(oddCount)n the str\(oddCount)ng \(oddCount) of the \(oddCount)nput.")
  }
  return result
}

extension Character {
  func isOdd() -> Bool {
    return self.asciiValue % 2 == 1
  }
}
<|file_separator|>
return self.asciiValue % 2 == 1 // value of optional type 'UInt8?' must be unwrapped to a value of type 'UInt8'

func oddCount(lst: [String]) -> [String] {
    var output = [String]()
    for i in 0..<lst.count {
        var odd = 0
        for j in 0..<lst[i].count {
            if Int(String(lst[i][j]))! % 2 != 0 {
                odd += 1
            }
        }
        output.append("the number of odd elements \(odd)n the str\(i)ng \(i) of the \(i)nput.")
    }
    return output
}
```swift
// Given an array of strings, where each string consists of only digits, return an array.
// Each element i of the output should be "the number of odd elements in the
// string i of the input." where all the i's should be replaced by the number
// of odd digits in the i'th string of the input.
// oddCount(lst: ["1234567"]) == ["the number of odd elements 4n the str4ng 4 of the 4nput."]
// oddCount(lst: ["3", "11111111"]) == ["the number of odd elements 1n the str1ng 1 of the 1nput.", "the number of odd elements 8n the str8ng 8 of the 8nput."]
func oddCount(lst: [String]) -> [String] {
    var output = [String]()
    for i in 0..<lst.count {
        var odd = 0
        for j in 0..<lst[i].count {
            if Int(String(lst[i][j]))! % 2 != 0 {
                odd += 1
            }
        }
        output.append("the number of odd elements \(odd)n the str\(i)ng \(i) of the \(i)nput.")
    }
    return output
}
<|file_separator|>
if Int(String(lst[i][j]))! % 2 != 0 { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for str in lst {
    var count = 0
    for char in str {
      if char.isMultiple(of: 2) {
        count += 1
      }
    }
    result.append("the number of odd elements \(count)n the str\(count)ng \(count) of the \(count)nput.")
  }
  return result
}
```swift
// Given an array of strings, where each string consists of only digits, return an array.
// Each element i of the output should be "the number of odd elements in the
// string i of the input." where all the i's should be replaced by the number
// of odd digits in the i'th string of the input.
// oddCount(lst: ["1234567"]) == ["the number of odd elements 4n the str4ng 4 of the 4nput."]
// oddCount(lst: ["3", "11111111"]) == ["the number of odd elements 1n the str1ng 1 of the 1nput.", "the number of odd elements 8n the str8ng 8 of the 8nput."]
func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for str in lst {
    var count = 0
    for char in str {
      if char.isMultiple(of: 2) {
        count += 1
      }
    }
    result.append("the number of odd elements \(count)n the str\(count)ng \(count) of the \(count)nput.")
  }
  return result
}
<|file_separator|>
if char.isMultiple(of: 2) { // value of type 'Character' has no member 'isMultiple'

func oddCount(lst: [String]) -> [String] {
    var output = [String]()
    for string in lst {
        var oddCount = 0
        for char in string {
            if char.isMultiple(of: 2) {
                oddCount += 1
            }
        }
        output.append("the number of odd elements \(oddCount)n the str\(oddCount)ng \(oddCount) of the \(oddCount)nput.")
    }
    return output
}
```swift
// Given an array of strings, where each string consists of only digits, return an array.
// Each element i of the output should be "the number of odd elements in the
// string i of the input." where all the i's should be replaced by the number
// of odd digits in the i'th string of the input.
// oddCount(lst: ["1234567"]) == ["the number of odd elements 4n the str4ng 4 of the 4nput."]
// oddCount(lst: ["3", "11111111"]) == ["the number of odd elements 1n the str1ng 1 of the 1nput.", "the number of odd elements 8n the str8ng 8 of the 8nput."]
func oddCount(lst: [String]) -> [String] {
    var output = [String]()
    for string in lst {
        var oddCount = 0
        for char in string {
            if char.isMultiple(of: 2) {
                oddCount += 1
            }
        }
        output.append("the number of odd elements \(oddCount)n the str\(oddCount)ng \(oddCount) of the \(oddCount)nput.")
    }
    return output
}

oddCount(lst: ["1234567"])
oddCount(lst: ["3", "11111111"])
<|file_separator|>
if char.isMultiple(of: 2) { // value of type 'Character' has no member 'isMultiple'

func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for string in lst {
    var odd = 0
    for char in string {
      if char.isMultiple(of: 2) {
        odd += 1
      }
    }
    result.append("the number of odd elements \(odd)n the str\(string) of the \(string)put.")
  }
  return result
}
```swift
// Given an array of strings, where each string consists of only digits, return an array.
// Each element i of the output should be "the number of odd elements in the
// string i of the input." where all the i's should be replaced by the number
// of odd digits in the i'th string of the input.
// oddCount(lst: ["1234567"]) == ["the number of odd elements 4n the str4ng 4 of the 4nput."]
// oddCount(lst: ["3", "11111111"]) == ["the number of odd elements 1n the str1ng 1 of the 1nput.", "the number of odd elements 8n the str8ng 8 of the 8nput."]
func oddCount(lst: [String]) -> [String] {
  var result = [String]()
  for string in lst {
    var odd = 0
    for char in string {
      if char.isMultiple(of: 2) {
        odd += 1
      }
    }
    result.append("the number of odd elements \(odd)n the str\(string) of the \(string)put.")
  }
  return result
}
<|file_separator|>
if char.isMultiple(of: 2) { // value of type 'Character' has no member 'isMultiple'

func oddCount(lst: [String]) -> [String] {
    var result = [String]()
    for str in lst {
        var oddCount = 0
        for char in str {
            if char.isOdd() {
                oddCount += 1
            }
        }
        result.append("the number of odd elements \(oddCount)n the str\(oddCount)ng \(oddCount) of the \(oddCount)nput.")
    }
    return result
}

extension Character {
    func isOdd() -> Bool {
        return self.wholeNumberValue! % 2 != 0
    }
}
```swift
// Given an array of strings, where each string consists of only digits, return an array.
// Each element i of the output should be "the number of odd elements in the
// string i of the input." where all the i's should be replaced by the number
// of odd digits in the i'th string of the input.
// oddCount(lst: ["1234567"]) == ["the number of odd elements 4n the str4ng 4 of the 4nput."]
// oddCount(lst: ["3", "11111111"]) == ["the number of odd elements 1n the str1ng 1 of the 1nput.", "the number of odd elements 8n the str8ng 8 of the 8nput."]
func oddCount(lst: [String]) -> [String] {
    var result = [String]()
    for str in lst {
        var oddCount = 0
        for char in str {
            if char.isOdd() {
                oddCount += 1
            }
        }
        result.append("the number of odd elements \(oddCount)n the str\(oddCount)ng \(oddCount) of the \(oddCount)nput.")
    }
    return result
}

extension Character {
    func isOdd() -> Bool {
        return self.wholeNumberValue! % 2 != 0
    }
}
<|file_separator|>

func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < minSum {
            minSum = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return minSum
}
```swift
// Given an array of integers nums, find the minimum sum of any non-empty sub-array
// of nums.
// Example
// minSubArraySum(nums: [2, 3, 4, 1, 2, 4]) == 1
// minSubArraySum(nums: [-1, -2, -3]) == -6
func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < minSum {
            minSum = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return minSum
}
<|file_separator|>

func minSubArraySum(nums: [Int]) -> Int {
    var min = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        min = min > sum ? sum : min
        for j in i+1..<nums.count {
            sum += nums[j]
            min = min > sum ? sum : min
        }
    }
    return min
}
```swift
// Given an array of integers nums, find the minimum sum of any non-empty sub-array
// of nums.
// Example
// minSubArraySum(nums: [2, 3, 4, 1, 2, 4]) == 1
// minSubArraySum(nums: [-1, -2, -3]) == -6
func minSubArraySum(nums: [Int]) -> Int {
    var min = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        min = min > sum ? sum : min
        for j in i+1..<nums.count {
            sum += nums[j]
            min = min > sum ? sum : min
        }
    }
    return min
}
<|file_separator|>
 // XCTAssertTrue failed

func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        minSum = min(minSum, sum)
        for j in i+1..<nums.count {
            sum += nums[j]
            minSum = min(minSum, sum)
        }
    }
    return minSum
}
```swift
// Given an array of integers nums, find the minimum sum of any non-empty sub-array
// of nums.
// Example
// minSubArraySum(nums: [2, 3, 4, 1, 2, 4]) == 1
// minSubArraySum(nums: [-1, -2, -3]) == -6
func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        minSum = min(minSum, sum)
        for j in i+1..<nums.count {
            sum += nums[j]
            minSum = min(minSum, sum)
        }
    }
    return minSum
}
<|file_separator|>
 // XCTAssertTrue failed

func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < minSum {
            minSum = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return minSum
}
```swift
// Given an array of integers nums, find the minimum sum of any non-empty sub-array
// of nums.
// Example
// minSubArraySum(nums: [2, 3, 4, 1, 2, 4]) == 1
// minSubArraySum(nums: [-1, -2, -3]) == -6
func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < minSum {
            minSum = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return minSum
}
<|file_separator|>

func minSubArraySum(nums: [Int]) -> Int {
    var min = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < min {
            min = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return min
}
```swift
// Given an array of integers nums, find the minimum sum of any non-empty sub-array
// of nums.
// Example
// minSubArraySum(nums: [2, 3, 4, 1, 2, 4]) == 1
// minSubArraySum(nums: [-1, -2, -3]) == -6
func minSubArraySum(nums: [Int]) -> Int {
    var min = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < min {
            min = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return min
}
<|file_separator|>```

func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < minSum {
            minSum = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return minSum
}

func maxSubArraySum(nums: [Int]) -> Int {
    var maxSum = Int.min
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum > maxSum {
            maxSum = sum
        }
        if sum < 0 {
            sum = 0
        }
    }
    return maxSum
}
```swift
// Given an array of integers nums, find the minimum sum of any non-empty sub-array
// of nums.
// Example
// minSubArraySum(nums: [2, 3, 4, 1, 2, 4]) == 1
// minSubArraySum(nums: [-1, -2, -3]) == -6
func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < minSum {
            minSum = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return minSum
}

// Given an array of integers nums, find the maximum sum of any non-empty sub-array
// of nums.
// Example
// maxSubArraySum(nums: [2, 3, 4, 1, 2, 4]) == 8
// maxSubArraySum(nums: [-1, -2, -3]) == -1
func maxSubArraySum(nums: [Int]) -> Int {
    var maxSum = Int.min
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum > maxSum {
            maxSum = sum
        }
        if sum < 0 {
            sum = 0
        }
    }
    return maxSum
}
<|file_separator|>

func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    var start = 0
    for i in 0..<nums.count {
        sum += nums[i]
        while sum >= minSum {
            minSum = min(minSum, sum - nums[start])
            sum -= nums[start]
            start += 1
        }
    }
    return minSum
}
```swift
// Given an array of integers nums, find the minimum sum of any non-empty sub-array
// of nums.
// Example
// minSubArraySum(nums: [2, 3, 4, 1, 2, 4]) == 1
// minSubArraySum(nums: [-1, -2, -3]) == -6
func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    var start = 0
    for i in 0..<nums.count {
        sum += nums[i]
        while sum >= minSum {
            minSum = min(minSum, sum - nums[start])
            sum -= nums[start]
            start += 1
        }
    }
    return minSum
}
<|file_separator|>
 // XCTAssertTrue failed

func minSubArraySum(nums: [Int]) -> Int {
    var min = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        min = min < sum ? min : sum
        for j in i+1..<nums.count {
            sum -= nums[j]
            min = min < sum ? min : sum
        }
    }
    return min
}
```swift
// Given an array of integers nums, find the minimum sum of any non-empty sub-array
// of nums.
// Example
// minSubArraySum(nums: [2, 3, 4, 1, 2, 4]) == 1
// minSubArraySum(nums: [-1, -2, -3]) == -6
func minSubArraySum(nums: [Int]) -> Int {
    var min = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        min = min < sum ? min : sum
        for j in i+1..<nums.count {
            sum -= nums[j]
            min = min < sum ? min : sum
        }
    }
    return min
}
<|file_separator|>```
 // XCTAssertTrue failed

func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < minSum {
            minSum = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return minSum
}
```swift
// Given an array of integers nums, find the minimum sum of any non-empty sub-array
// of nums.
// Example
// minSubArraySum(nums: [2, 3, 4, 1, 2, 4]) == 1
// minSubArraySum(nums: [-1, -2, -3]) == -6
func minSubArraySum(nums: [Int]) -> Int {
    var minSum = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < minSum {
            minSum = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return minSum
}
<|file_separator|>

func minSubArraySum(nums: [Int]) -> Int {
    var min = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < min {
            min = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return min
}
```swift
// Given an array of integers nums, find the minimum sum of any non-empty sub-array
// of nums.
// Example
// minSubArraySum(nums: [2, 3, 4, 1, 2, 4]) == 1
// minSubArraySum(nums: [-1, -2, -3]) == -6
func minSubArraySum(nums: [Int]) -> Int {
    var min = Int.max
    var sum = 0
    for i in 0..<nums.count {
        sum += nums[i]
        if sum < min {
            min = sum
        }
        if sum > 0 {
            sum = 0
        }
    }
    return min
}
<|file_separator|>```

func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = Array(repeating: capacity, count: grid.count)
    var count = 0
    for row in grid {
        var sum = 0
        for i in row {
            sum += i
        }
        if sum > 0 {
            count += sum - buckets.max()!
            buckets = buckets.map { $0 - sum }
        }
    }
    return count
}
```swift
// You are given a rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of water.
// Each well has a corresponding bucket that can be used to extract water from it, 
// and all buckets have the same capacity.
// Your task is to use the buckets to empty the wells.
// Output the number of times you need to lower the buckets.
// Example 1:
// Example 2:
// Example 3:
// Constraints:
// * all wells have the same length
// * 1 <= grid.length <= 10^2
// * 1 <= grid[:,1].length <= 10^2
// * grid[i][j] -> 0 | 1
// * 1 <= capacity <= 10
// maxFill(grid: [[0, 0, 1, 0], [0, 1, 0, 0], [1, 1, 1, 1]], capacity: 1) == 6
// maxFill(grid: [[0, 0, 1, 1], [0, 0, 0, 0], [1, 1, 1, 1], [0, 1, 1, 1]], capacity: 2) == 5
// maxFill(grid: [[0, 0, 0], [0, 0, 0]], capacity: 5) == 0
func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = Array(repeating: capacity, count: grid.count)
    var count = 0
    for row in grid {
        var sum = 0
        for i in row {
            sum += i
        }
        if sum > 0 {
            count += sum - buckets.max()!
            buckets = buckets.map { $0 - sum }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = [Int]()
    for i in 0..<grid.count {
        for j in 0..<grid[i].count {
            if grid[i][j] == 1 {
                buckets.append(capacity)
            }
        }
    }
    var count = 0
    while buckets.count > 0 {
        var newBuckets = [Int]()
        for i in 0..<buckets.count {
            if buckets[i] > 0 {
                buckets[i] -= 1
                newBuckets.append(buckets[i])
            }
        }
        buckets = newBuckets
        count += 1
    }
    return count
}
```swift
// You are given a rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of water.
// Each well has a corresponding bucket that can be used to extract water from it, 
// and all buckets have the same capacity.
// Your task is to use the buckets to empty the wells.
// Output the number of times you need to lower the buckets.
// Example 1:
// Example 2:
// Example 3:
// Constraints:
// * all wells have the same length
// * 1 <= grid.length <= 10^2
// * 1 <= grid[:,1].length <= 10^2
// * grid[i][j] -> 0 | 1
// * 1 <= capacity <= 10
// maxFill(grid: [[0, 0, 1, 0], [0, 1, 0, 0], [1, 1, 1, 1]], capacity: 1) == 6
// maxFill(grid: [[0, 0, 1, 1], [0, 0, 0, 0], [1, 1, 1, 1], [0, 1, 1, 1]], capacity: 2) == 5
// maxFill(grid: [[0, 0, 0], [0, 0, 0]], capacity: 5) == 0
func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = [Int]()
    for i in 0..<grid.count {
        for j in 0..<grid[i].count {
            if grid[i][j] == 1 {
                buckets.append(capacity)
            }
        }
    }
    var count = 0
    while buckets.count > 0 {
        var newBuckets = [Int]()
        for i in 0..<buckets.count {
            if buckets[i] > 0 {
                buckets[i] -= 1
                newBuckets.append(buckets[i])
            }
        }
        buckets = newBuckets
        count += 1
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = [Int]()
    for row in grid {
        for bucket in row {
            buckets.append(bucket)
        }
    }
    var count = 0
    var i = 0
    while i < buckets.count {
        var j = i
        while j < buckets.count {
            if buckets[i] == buckets[j] {
                buckets[i] = buckets[i] + buckets[j]
                buckets[j] = 0
            }
            j += 1
        }
        i += 1
    }
    for bucket in buckets {
        if bucket != 0 {
            count += 1
        }
    }
    return count
}
```swift
// You are given a rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of water.
// Each well has a corresponding bucket that can be used to extract water from it, 
// and all buckets have the same capacity.
// Your task is to use the buckets to empty the wells.
// Output the number of times you need to lower the buckets.
// Example 1:
// Example 2:
// Example 3:
// Constraints:
// * all wells have the same length
// * 1 <= grid.length <= 10^2
// * 1 <= grid[:,1].length <= 10^2
// * grid[i][j] -> 0 | 1
// * 1 <= capacity <= 10
// maxFill(grid: [[0, 0, 1, 0], [0, 1, 0, 0], [1, 1, 1, 1]], capacity: 1) == 6
// maxFill(grid: [[0, 0, 1, 1], [0, 0, 0, 0], [1, 1, 1, 1], [0, 1, 1, 1]], capacity: 2) == 5
// maxFill(grid: [[0, 0, 0], [0, 0, 0]], capacity: 5) == 0
func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = [Int]()
    for row in grid {
        for bucket in row {
            buckets.append(bucket)
        }
    }
    var count = 0
    var i = 0
    while i < buckets.count {
        var j = i
        while j < buckets.count {
            if buckets[i] == buckets[j] {
                buckets[i] = buckets[i] + buckets[j]
                buckets[j] = 0
            }
            j += 1
        }
        i += 1
    }
    for bucket in buckets {
        if bucket != 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = Array(repeating: 0, count: grid.count)
    var count = 0
    for row in grid {
        for i in 0..<row.count {
            if row[i] == 1 {
                buckets[i] += 1
            }
        }
    }
    for i in 0..<buckets.count {
        if buckets[i] > capacity {
            count += buckets[i] - capacity
            buckets[i] = capacity
        }
    }
    return count
}
```swift
// You are given a rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of water.
// Each well has a corresponding bucket that can be used to extract water from it, 
// and all buckets have the same capacity.
// Your task is to use the buckets to empty the wells.
// Output the number of times you need to lower the buckets.
// Example 1:
// Example 2:
// Example 3:
// Constraints:
// * all wells have the same length
// * 1 <= grid.length <= 10^2
// * 1 <= grid[:,1].length <= 10^2
// * grid[i][j] -> 0 | 1
// * 1 <= capacity <= 10
// maxFill(grid: [[0, 0, 1, 0], [0, 1, 0, 0], [1, 1, 1, 1]], capacity: 1) == 6
// maxFill(grid: [[0, 0, 1, 1], [0, 0, 0, 0], [1, 1, 1, 1], [0, 1, 1, 1]], capacity: 2) == 5
// maxFill(grid: [[0, 0, 0], [0, 0, 0]], capacity: 5) == 0
func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = Array(repeating: 0, count: grid.count)
    var count = 0
    for row in grid {
        for i in 0..<row.count {
            if row[i] == 1 {
                buckets[i] += 1
            }
        }
    }
    for i in 0..<buckets.count {
        if buckets[i] > capacity {
            count += buckets[i] - capacity
            buckets[i] = capacity
        }
    }
    return count
}
<|file_separator|>
 // Fatal error: Index out of range

func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = [Int]()
    for row in grid {
        for well in row {
            if well == 1 {
                buckets.append(capacity)
            }
        }
    }
    var count = 0
    while buckets.count > 0 {
        var min = buckets[0]
        for bucket in buckets {
            if bucket < min {
                min = bucket
            }
        }
        for i in 0..<buckets.count {
            if buckets[i] == min {
                buckets[i] -= 1
                if buckets[i] == 0 {
                    buckets.remove(at: i)
                }
            }
        }
        count += 1
    }
    return count
}
```swift
// You are given a rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of water.
// Each well has a corresponding bucket that can be used to extract water from it, 
// and all buckets have the same capacity.
// Your task is to use the buckets to empty the wells.
// Output the number of times you need to lower the buckets.
// Example 1:
// Example 2:
// Example 3:
// Constraints:
// * all wells have the same length
// * 1 <= grid.length <= 10^2
// * 1 <= grid[:,1].length <= 10^2
// * grid[i][j] -> 0 | 1
// * 1 <= capacity <= 10
// maxFill(grid: [[0, 0, 1, 0], [0, 1, 0, 0], [1, 1, 1, 1]], capacity: 1) == 6
// maxFill(grid: [[0, 0, 1, 1], [0, 0, 0, 0], [1, 1, 1, 1], [0, 1, 1, 1]], capacity: 2) == 5
// maxFill(grid: [[0, 0, 0], [0, 0, 0]], capacity: 5) == 0
func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = [Int]()
    for row in grid {
        for well in row {
            if well == 1 {
                buckets.append(capacity)
            }
        }
    }
    var count = 0
    while buckets.count > 0 {
        var min = buckets[0]
        for bucket in buckets {
            if bucket < min {
                min = bucket
            }
        }
        for i in 0..<buckets.count {
            if buckets[i] == min {
                buckets[i] -= 1
                if buckets[i] == 0 {
                    buckets.remove(at: i)
                }
            }
        }
        count += 1
    }
    return count
}
<|file_separator|>
 // Fatal error: Index out of range

func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = Array(repeating: capacity, count: grid.count)
    var count = 0
    for row in grid {
        for i in 0..<row.count {
            if row[i] == 1 {
                buckets[i] -= 1
                if buckets[i] < 0 {
                    count += abs(buckets[i])
                    buckets[i] = 0
                }
            }
        }
    }
    return count
}
```swift
// You are given a rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of water.
// Each well has a corresponding bucket that can be used to extract water from it, 
// and all buckets have the same capacity.
// Your task is to use the buckets to empty the wells.
// Output the number of times you need to lower the buckets.
// Example 1:
// Example 2:
// Example 3:
// Constraints:
// * all wells have the same length
// * 1 <= grid.length <= 10^2
// * 1 <= grid[:,1].length <= 10^2
// * grid[i][j] -> 0 | 1
// * 1 <= capacity <= 10
// maxFill(grid: [[0, 0, 1, 0], [0, 1, 0, 0], [1, 1, 1, 1]], capacity: 1) == 6
// maxFill(grid: [[0, 0, 1, 1], [0, 0, 0, 0], [1, 1, 1, 1], [0, 1, 1, 1]], capacity: 2) == 5
// maxFill(grid: [[0, 0, 0], [0, 0, 0]], capacity: 5) == 0
func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = Array(repeating: capacity, count: grid.count)
    var count = 0
    for row in grid {
        for i in 0..<row.count {
            if row[i] == 1 {
                buckets[i] -= 1
                if buckets[i] < 0 {
                    count += abs(buckets[i])
                    buckets[i] = 0
                }
            }
        }
    }
    return count
}
<|file_separator|>
 // Fatal error: Index out of range

func maxFill(grid: [[Int]], capacity: Int) -> Int {
    // Write your code here
    var buckets = Array(repeating: capacity, count: grid.count)
    var total = 0
    for i in 0..<grid.count {
        for j in 0..<grid[i].count {
            if grid[i][j] == 1 {
                buckets[i] -= 1
                total += 1
            }
        }
    }
    return total
}
```swift
// You are given a rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of water.
// Each well has a corresponding bucket that can be used to extract water from it, 
// and all buckets have the same capacity.
// Your task is to use the buckets to empty the wells.
// Output the number of times you need to lower the buckets.
// Example 1:
// Example 2:
// Example 3:
// Constraints:
// * all wells have the same length
// * 1 <= grid.length <= 10^2
// * 1 <= grid[:,1].length <= 10^2
// * grid[i][j] -> 0 | 1
// * 1 <= capacity <= 10
// maxFill(grid: [[0, 0, 1, 0], [0, 1, 0, 0], [1, 1, 1, 1]], capacity: 1) == 6
// maxFill(grid: [[0, 0, 1, 1], [0, 0, 0, 0], [1, 1, 1, 1], [0, 1, 1, 1]], capacity: 2) == 5
// maxFill(grid: [[0, 0, 0], [0, 0, 0]], capacity: 5) == 0
func maxFill(grid: [[Int]], capacity: Int) -> Int {
    // Write your code here
    var buckets = Array(repeating: capacity, count: grid.count)
    var total = 0
    for i in 0..<grid.count {
        for j in 0..<grid[i].count {
            if grid[i][j] == 1 {
                buckets[i] -= 1
                total += 1
            }
        }
    }
    return total
}
<|file_separator|>
 // XCTAssertTrue failed

func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = Array(repeating: 0, count: grid.count)
    var count = 0
    for i in 0..<grid.count {
        for j in 0..<grid[i].count {
            if grid[i][j] == 1 {
                buckets[i] += capacity
            }
        }
        if buckets[i] > 0 {
            count += 1
        }
    }
    return count
}
```swift
// You are given a rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of water.
// Each well has a corresponding bucket that can be used to extract water from it, 
// and all buckets have the same capacity.
// Your task is to use the buckets to empty the wells.
// Output the number of times you need to lower the buckets.
// Example 1:
// Example 2:
// Example 3:
// Constraints:
// * all wells have the same length
// * 1 <= grid.length <= 10^2
// * 1 <= grid[:,1].length <= 10^2
// * grid[i][j] -> 0 | 1
// * 1 <= capacity <= 10
// maxFill(grid: [[0, 0, 1, 0], [0, 1, 0, 0], [1, 1, 1, 1]], capacity: 1) == 6
// maxFill(grid: [[0, 0, 1, 1], [0, 0, 0, 0], [1, 1, 1, 1], [0, 1, 1, 1]], capacity: 2) == 5
// maxFill(grid: [[0, 0, 0], [0, 0, 0]], capacity: 5) == 0
func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = Array(repeating: 0, count: grid.count)
    var count = 0
    for i in 0..<grid.count {
        for j in 0..<grid[i].count {
            if grid[i][j] == 1 {
                buckets[i] += capacity
            }
        }
        if buckets[i] > 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = [Int]()
    for i in 0..<grid.count {
        for j in 0..<grid[i].count {
            if grid[i][j] == 1 {
                buckets.append(capacity)
            }
        }
    }
    var count = 0
    while buckets.count > 1 {
        var temp = buckets
        buckets = [Int]()
        for i in 0..<temp.count {
            if temp[i] > 0 {
                buckets.append(temp[i] - 1)
            }
        }
        count += 1
    }
    return count
}
```swift
// You are given a rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of water.
// Each well has a corresponding bucket that can be used to extract water from it, 
// and all buckets have the same capacity.
// Your task is to use the buckets to empty the wells.
// Output the number of times you need to lower the buckets.
// Example 1:
// Example 2:
// Example 3:
// Constraints:
// * all wells have the same length
// * 1 <= grid.length <= 10^2
// * 1 <= grid[:,1].length <= 10^2
// * grid[i][j] -> 0 | 1
// * 1 <= capacity <= 10
// maxFill(grid: [[0, 0, 1, 0], [0, 1, 0, 0], [1, 1, 1, 1]], capacity: 1) == 6
// maxFill(grid: [[0, 0, 1, 1], [0, 0, 0, 0], [1, 1, 1, 1], [0, 1, 1, 1]], capacity: 2) == 5
// maxFill(grid: [[0, 0, 0], [0, 0, 0]], capacity: 5) == 0
func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = [Int]()
    for i in 0..<grid.count {
        for j in 0..<grid[i].count {
            if grid[i][j] == 1 {
                buckets.append(capacity)
            }
        }
    }
    var count = 0
    while buckets.count > 1 {
        var temp = buckets
        buckets = [Int]()
        for i in 0..<temp.count {
            if temp[i] > 0 {
                buckets.append(temp[i] - 1)
            }
        }
        count += 1
    }
    return count
}<|file_separator|>
var temp = buckets // variable 'temp' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = [Int]()
    for row in grid {
        for well in row {
            if well == 1 {
                buckets.append(capacity)
            }
        }
    }
    var count = 0
    while buckets.count > 0 {
        var min = buckets[0]
        var index = 0
        for i in 1..<buckets.count {
            if buckets[i] < min {
                min = buckets[i]
                index = i
            }
        }
        buckets[index] -= 1
        if buckets[index] == 0 {
            buckets.remove(at: index)
        }
        count += 1
    }
    return count
}
```swift
// You are given a rectangular grid of wells. Each row represents a single well,
// and each 1 in a row represents a single unit of water.
// Each well has a corresponding bucket that can be used to extract water from it, 
// and all buckets have the same capacity.
// Your task is to use the buckets to empty the wells.
// Output the number of times you need to lower the buckets.
// Example 1:
// Example 2:
// Example 3:
// Constraints:
// * all wells have the same length
// * 1 <= grid.length <= 10^2
// * 1 <= grid[:,1].length <= 10^2
// * grid[i][j] -> 0 | 1
// * 1 <= capacity <= 10
// maxFill(grid: [[0, 0, 1, 0], [0, 1, 0, 0], [1, 1, 1, 1]], capacity: 1) == 6
// maxFill(grid: [[0, 0, 1, 1], [0, 0, 0, 0], [1, 1, 1, 1], [0, 1, 1, 1]], capacity: 2) == 5
// maxFill(grid: [[0, 0, 0], [0, 0, 0]], capacity: 5) == 0
func maxFill(grid: [[Int]], capacity: Int) -> Int {
    var buckets = [Int]()
    for row in grid {
        for well in row {
            if well == 1 {
                buckets.append(capacity)
            }
        }
    }
    var count = 0
    while buckets.count > 0 {
        var min = buckets[0]
        var index = 0
        for i in 1..<buckets.count {
            if buckets[i] < min {
                min = buckets[i]
                index = i
            }
        }
        buckets[index] -= 1
        if buckets[index] == 0 {
            buckets.remove(at: index)
        }
        count += 1
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func sortArray(arr: [Int]) -> [Int] {
    return arr.sorted {
        let a = String(arr.binary(of: $0))
        let b = String(arr.binary(of: $1))
        if a == b {
            return $0 < $1
        }
        return a < b
    }
}

func binary(of num: Int) -> String {
    var n = num
    var s = ""
    while n > 0 {
        s = String(n % 2) + s
        n /= 2
    }
    return s
}
```swift
// In this Kata, you have to sort an array of non-negative integers according to
// number of ones in their binary representation in ascending order.
// For similar number of ones, sort based on decimal value.
// It must be implemented like this:
// sortArray(arr: [1, 5, 2, 3, 4]) == [1, 2, 3, 4, 5]
// sortArray(arr: [-2, -3, -4, -5, -6]) == [-6, -5, -4, -3, -2]
// sortArray(arr: [1, 0, 2, 3, 4]) == [0, 1, 2, 3, 4]
func sortArray(arr: [Int]) -> [Int] {
    return arr.sorted {
        let a = String(arr.binary(of: $0))
        let b = String(arr.binary(of: $1))
        if a == b {
            return $0 < $1
        }
        return a < b
    }
}

func binary(of num: Int) -> String {
    var n = num
    var s = ""
    while n > 0 {
        s = String(n % 2) + s
        n /= 2
    }
    return s
}
<|file_separator|>
let a = String(arr.binary(of: $0)) // value of type '[Int]' has no member 'binary'

func sortArray(arr: [Int]) -> [Int] {
  var sorted = arr.sorted {
    let a = Int(String($0, radix: 2))!
    let b = Int(String($1, radix: 2))!
    if a == b {
      return $0 < $1
    }
    return a < b
  }
  return sorted
}
```swift
// In this Kata, you have to sort an array of non-negative integers according to
// number of ones in their binary representation in ascending order.
// For similar number of ones, sort based on decimal value.
// It must be implemented like this:
// sortArray(arr: [1, 5, 2, 3, 4]) == [1, 2, 3, 4, 5]
// sortArray(arr: [-2, -3, -4, -5, -6]) == [-6, -5, -4, -3, -2]
// sortArray(arr: [1, 0, 2, 3, 4]) == [0, 1, 2, 3, 4]
func sortArray(arr: [Int]) -> [Int] {
  var sorted = arr.sorted {
    let a = Int(String($0, radix: 2))!
    let b = Int(String($1, radix: 2))!
    if a == b {
      return $0 < $1
    }
    return a < b
  }
  return sorted
}
<|file_separator|>
var sorted = arr.sorted { // variable 'sorted' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func sortArray(arr: [Int]) -> [Int] {
  return arr.sorted { (a, b) -> Bool in
    let aOnes = a.ones()
    let bOnes = b.ones()
    if aOnes == bOnes {
      return a < b
    }
    return aOnes < bOnes
  }
}

extension Int {
  func ones() -> Int {
    var n = self
    var ones = 0
    while n > 0 {
      ones += n % 2
      n /= 2
    }
    return ones
  }
}
```swift
// In this Kata, you have to sort an array of non-negative integers according to
// number of ones in their binary representation in ascending order.
// For similar number of ones, sort based on decimal value.
// It must be implemented like this:
// sortArray(arr: [1, 5, 2, 3, 4]) == [1, 2, 3, 4, 5]
// sortArray(arr: [-2, -3, -4, -5, -6]) == [-6, -5, -4, -3, -2]
// sortArray(arr: [1, 0, 2, 3, 4]) == [0, 1, 2, 3, 4]
func sortArray(arr: [Int]) -> [Int] {
  return arr.sorted { (a, b) -> Bool in
    let aOnes = a.ones()
    let bOnes = b.ones()
    if aOnes == bOnes {
      return a < b
    }
    return aOnes < bOnes
  }
}

extension Int {
  func ones() -> Int {
    var n = self
    var ones = 0
    while n > 0 {
      ones += n % 2
      n /= 2
    }
    return ones
  }
}
<|file_separator|>
 // XCTAssertTrue failed

func sortArray(arr: [Int]) -> [Int] {
  return arr.sorted { (a, b) -> Bool in
    let aBin = String(a, radix: 2)
    let bBin = String(b, radix: 2)
    let aOnes = aBin.filter { $0 == "1" }.count
    let bOnes = bBin.filter { $0 == "1" }.count
    if aOnes == bOnes {
      return a < b
    } else {
      return aOnes < bOnes
    }
  }
}
```swift
// In this Kata, you have to sort an array of non-negative integers according to
// number of ones in their binary representation in ascending order.
// For similar number of ones, sort based on decimal value.
// It must be implemented like this:
// sortArray(arr: [1, 5, 2, 3, 4]) == [1, 2, 3, 4, 5]
// sortArray(arr: [-2, -3, -4, -5, -6]) == [-6, -5, -4, -3, -2]
// sortArray(arr: [1, 0, 2, 3, 4]) == [0, 1, 2, 3, 4]
func sortArray(arr: [Int]) -> [Int] {
  return arr.sorted { (a, b) -> Bool in
    let aBin = String(a, radix: 2)
    let bBin = String(b, radix: 2)
    let aOnes = aBin.filter { $0 == "1" }.count
    let bOnes = bBin.filter { $0 == "1" }.count
    if aOnes == bOnes {
      return a < b
    } else {
      return aOnes < bOnes
    }
  }
}
<|file_separator|>

func sortArray(arr: [Int]) -> [Int] {
    return arr.sorted { (a, b) -> Bool in
        let aOnes = a.ones()
        let bOnes = b.ones()
        if aOnes == bOnes {
            return a < b
        }
        return aOnes < bOnes
    }
}

extension Int {
    func ones() -> Int {
        var n = self
        var ones = 0
        while n > 0 {
            ones += n & 1
            n >>= 1
        }
        return ones
    }
}
```swift
// In this Kata, you have to sort an array of non-negative integers according to
// number of ones in their binary representation in ascending order.
// For similar number of ones, sort based on decimal value.
// It must be implemented like this:
// sortArray(arr: [1, 5, 2, 3, 4]) == [1, 2, 3, 4, 5]
// sortArray(arr: [-2, -3, -4, -5, -6]) == [-6, -5, -4, -3, -2]
// sortArray(arr: [1, 0, 2, 3, 4]) == [0, 1, 2, 3, 4]
func sortArray(arr: [Int]) -> [Int] {
    return arr.sorted { (a, b) -> Bool in
        let aOnes = a.ones()
        let bOnes = b.ones()
        if aOnes == bOnes {
            return a < b
        }
        return aOnes < bOnes
    }
}

extension Int {
    func ones() -> Int {
        var n = self
        var ones = 0
        while n > 0 {
            ones += n & 1
            n >>= 1
        }
        return ones
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func sortArray(arr: [Int]) -> [Int] {
  return arr.sorted {
    let a = Int(String($0, radix: 2)) ?? 0
    let b = Int(String($1, radix: 2)) ?? 0
    if a == b {
      return $0 < $1
    }
    return a < b
  }
}
```swift
// In this Kata, you have to sort an array of non-negative integers according to
// number of ones in their binary representation in ascending order.
// For similar number of ones, sort based on decimal value.
// It must be implemented like this:
// sortArray(arr: [1, 5, 2, 3, 4]) == [1, 2, 3, 4, 5]
// sortArray(arr: [-2, -3, -4, -5, -6]) == [-6, -5, -4, -3, -2]
// sortArray(arr: [1, 0, 2, 3, 4]) == [0, 1, 2, 3, 4]
func sortArray(arr: [Int]) -> [Int] {
  return arr.sorted {
    let a = Int(String($0, radix: 2)) ?? 0
    let b = Int(String($1, radix: 2)) ?? 0
    if a == b {
      return $0 < $1
    }
    return a < b
  }
}
<|file_separator|>```
 // XCTAssertTrue failed

func sortArray(arr: [Int]) -> [Int] {
    return arr.sorted {
        let a = Int(String($0, radix: 2))!
        let b = Int(String($1, radix: 2))!
        if a == b {
            return $0 < $1
        }
        return a < b
    }
}
```swift
// In this Kata, you have to sort an array of non-negative integers according to
// number of ones in their binary representation in ascending order.
// For similar number of ones, sort based on decimal value.
// It must be implemented like this:
// sortArray(arr: [1, 5, 2, 3, 4]) == [1, 2, 3, 4, 5]
// sortArray(arr: [-2, -3, -4, -5, -6]) == [-6, -5, -4, -3, -2]
// sortArray(arr: [1, 0, 2, 3, 4]) == [0, 1, 2, 3, 4]
func sortArray(arr: [Int]) -> [Int] {
    return arr.sorted {
        let a = Int(String($0, radix: 2))!
        let b = Int(String($1, radix: 2))!
        if a == b {
            return $0 < $1
        }
        return a < b
    }
}
<|file_separator|>```
 // XCTAssertTrue failed

func sortArray(arr: [Int]) -> [Int] {
    var sorted = arr.sorted { (a, b) -> Bool in
        let aBinary = String(a, radix: 2)
        let bBinary = String(b, radix: 2)
        let aOnes = aBinary.filter { $0 == "1" }.count
        let bOnes = bBinary.filter { $0 == "1" }.count
        if aOnes == bOnes {
            return a < b
        }
        return aOnes < bOnes
    }
    return sorted
}
```swift
// In this Kata, you have to sort an array of non-negative integers according to
// number of ones in their binary representation in ascending order.
// For similar number of ones, sort based on decimal value.
// It must be implemented like this:
// sortArray(arr: [1, 5, 2, 3, 4]) == [1, 2, 3, 4, 5]
// sortArray(arr: [-2, -3, -4, -5, -6]) == [-6, -5, -4, -3, -2]
// sortArray(arr: [1, 0, 2, 3, 4]) == [0, 1, 2, 3, 4]
func sortArray(arr: [Int]) -> [Int] {
    var sorted = arr.sorted { (a, b) -> Bool in
        let aBinary = String(a, radix: 2)
        let bBinary = String(b, radix: 2)
        let aOnes = aBinary.filter { $0 == "1" }.count
        let bOnes = bBinary.filter { $0 == "1" }.count
        if aOnes == bOnes {
            return a < b
        }
        return aOnes < bOnes
    }
    return sorted
}
<|file_separator|>
var sorted = arr.sorted { (a, b) -> Bool in // variable 'sorted' was never mutated; consider changing to 'let' constant

func sortArray(arr: [Int]) -> [Int] {
  return arr.sorted { (a, b) -> Bool in
    let a_bin = String(a, radix: 2)
    let b_bin = String(b, radix: 2)
    if a_bin.count == b_bin.count {
      return a < b
    } else {
      return a_bin.count < b_bin.count
    }
  }
}
```swift
// In this Kata, you have to sort an array of non-negative integers according to
// number of ones in their binary representation in ascending order.
// For similar number of ones, sort based on decimal value.
// It must be implemented like this:
// sortArray(arr: [1, 5, 2, 3, 4]) == [1, 2, 3, 4, 5]
// sortArray(arr: [-2, -3, -4, -5, -6]) == [-6, -5, -4, -3, -2]
// sortArray(arr: [1, 0, 2, 3, 4]) == [0, 1, 2, 3, 4]
func sortArray(arr: [Int]) -> [Int] {
  return arr.sorted { (a, b) -> Bool in
    let a_bin = String(a, radix: 2)
    let b_bin = String(b, radix: 2)
    if a_bin.count == b_bin.count {
      return a < b
    } else {
      return a_bin.count < b_bin.count
    }
  }
}
<|file_separator|>
 // XCTAssertTrue failed

func sortArray(arr: [Int]) -> [Int] {
  var sorted = arr.sorted { (a, b) -> Bool in
    let aBinary = String(a, radix: 2)
    let bBinary = String(b, radix: 2)
    let aOnes = aBinary.filter { $0 == "1" }.count
    let bOnes = bBinary.filter { $0 == "1" }.count
    if aOnes == bOnes {
      return a < b
    } else {
      return aOnes < bOnes
    }
  }
  return sorted
}
```swift
// In this Kata, you have to sort an array of non-negative integers according to
// number of ones in their binary representation in ascending order.
// For similar number of ones, sort based on decimal value.
// It must be implemented like this:
// sortArray(arr: [1, 5, 2, 3, 4]) == [1, 2, 3, 4, 5]
// sortArray(arr: [-2, -3, -4, -5, -6]) == [-6, -5, -4, -3, -2]
// sortArray(arr: [1, 0, 2, 3, 4]) == [0, 1, 2, 3, 4]
func sortArray(arr: [Int]) -> [Int] {
  var sorted = arr.sorted { (a, b) -> Bool in
    let aBinary = String(a, radix: 2)
    let bBinary = String(b, radix: 2)
    let aOnes = aBinary.filter { $0 == "1" }.count
    let bOnes = bBinary.filter { $0 == "1" }.count
    if aOnes == bOnes {
      return a < b
    } else {
      return aOnes < bOnes
    }
  }
  return sorted
}
<|file_separator|>
var sorted = arr.sorted { (a, b) -> Bool in // variable 'sorted' was never mutated; consider changing to 'let' constant

func selectWords(s: String, n: Int) -> [String] {
    var result = [String]()
    let vowels = "aeiou"
    let consonants = "bcdfghjklmnpqrstvwxyz"
    let words = s.split(separator: " ")
    for word in words {
        var count = 0
        for char in word {
            if consonants.contains(char) {
                count += 1
            }
        }
        if count == n {
            result.append(String(word))
        }
    }
    return result
}
```swift
// Given a string s and a natural number n, you have been tasked to implement 
// a function that returns an array of all words from string s that contain exactly 
// n consonants, in order these words appear in the string s.
// If the string s is empty then the function should return an empty array.
// Note: you may assume the input string contains only letters and spaces.
// Examples:
// selectWords(s: "Mary had a little lamb", n: 4) == ["little"]
// selectWords(s: "Mary had a little lamb", n: 3) == ["Mary", "lamb"]
// selectWords(s: "simple white space", n: 2) == [] as [String]
// selectWords(s: "Hello world", n: 4) == ["world"]
// selectWords(s: "Uncle sam", n: 3) == ["Uncle"]
func selectWords(s: String, n: Int) -> [String] {
    var result = [String]()
    let vowels = "aeiou"
    let consonants = "bcdfghjklmnpqrstvwxyz"
    let words = s.split(separator: " ")
    for word in words {
        var count = 0
        for char in word {
            if consonants.contains(char) {
                count += 1
            }
        }
        if count == n {
            result.append(String(word))
        }
    }
    return result
}
<|file_separator|>
let vowels = "aeiou" // initialization of immutable value 'vowels' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func selectWords(s: String, n: Int) -> [String] {
    var result = [String]()
    var count = 0
    var word = ""
    for char in s {
        if char == " " {
            if count == n {
                result.append(word)
            }
            word = ""
            count = 0
        } else {
            word += String(char)
            count += 1
        }
    }
    if count == n {
        result.append(word)
    }
    return result
}
```swift
// Given a string s and a natural number n, you have been tasked to implement 
// a function that returns an array of all words from string s that contain exactly 
// n consonants, in order these words appear in the string s.
// If the string s is empty then the function should return an empty array.
// Note: you may assume the input string contains only letters and spaces.
// Examples:
// selectWords(s: "Mary had a little lamb", n: 4) == ["little"]
// selectWords(s: "Mary had a little lamb", n: 3) == ["Mary", "lamb"]
// selectWords(s: "simple white space", n: 2) == [] as [String]
// selectWords(s: "Hello world", n: 4) == ["world"]
// selectWords(s: "Uncle sam", n: 3) == ["Uncle"]
func selectWords(s: String, n: Int) -> [String] {
    var result = [String]()
    var count = 0
    var word = ""
    for char in s {
        if char == " " {
            if count == n {
                result.append(word)
            }
            word = ""
            count = 0
        } else {
            word += String(char)
            count += 1
        }
    }
    if count == n {
        result.append(word)
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func selectWords(s: String, n: Int) -> [String] {
  var words = [String]()
  var word = ""
  var count = 0
  for char in s {
    if char == " " {
      if count == n {
        words.append(word)
      }
      word = ""
      count = 0
    } else {
      word += String(char)
      count += 1
    }
  }
  if count == n {
    words.append(word)
  }
  return words
}
```swift
// Given a string s and a natural number n, you have been tasked to implement 
// a function that returns an array of all words from string s that contain exactly 
// n consonants, in order these words appear in the string s.
// If the string s is empty then the function should return an empty array.
// Note: you may assume the input string contains only letters and spaces.
// Examples:
// selectWords(s: "Mary had a little lamb", n: 4) == ["little"]
// selectWords(s: "Mary had a little lamb", n: 3) == ["Mary", "lamb"]
// selectWords(s: "simple white space", n: 2) == [] as [String]
// selectWords(s: "Hello world", n: 4) == ["world"]
// selectWords(s: "Uncle sam", n: 3) == ["Uncle"]
func selectWords(s: String, n: Int) -> [String] {
  var words = [String]()
  var word = ""
  var count = 0
  for char in s {
    if char == " " {
      if count == n {
        words.append(word)
      }
      word = ""
      count = 0
    } else {
      word += String(char)
      count += 1
    }
  }
  if count == n {
    words.append(word)
  }
  return words
}
<|file_separator|>
 // XCTAssertTrue failed

func selectWords(s: String, n: Int) -> [String] {
    var words = [String]()
    var word = ""
    var count = 0
    for c in s {
        if c == " " {
            if count == n {
                words.append(word)
            }
            word = ""
            count = 0
        } else {
            word += String(c)
            count += 1
        }
    }
    if count == n {
        words.append(word)
    }
    return words
}

func countWords(s: String, n: Int) -> Int {
    var count = 0
    for word in s.split(separator: " ") {
        var vowels = 0
        for c in word {
            if c == "a" || c == "e" || c == "i" || c == "o" || c == "u" {
                vowels += 1
            }
        }
        if vowels == n {
            count += 1
        }
    }
    return count
}
```swift
// Given a string s and a natural number n, you have been tasked to implement 
// a function that returns an array of all words from string s that contain exactly 
// n consonants, in order these words appear in the string s.
// If the string s is empty then the function should return an empty array.
// Note: you may assume the input string contains only letters and spaces.
// Examples:
// selectWords(s: "Mary had a little lamb", n: 4) == ["little"]
// selectWords(s: "Mary had a little lamb", n: 3) == ["Mary", "lamb"]
// selectWords(s: "simple white space", n: 2) == [] as [String]
// selectWords(s: "Hello world", n: 4) == ["world"]
// selectWords(s: "Uncle sam", n: 3) == ["Uncle"]
func selectWords(s: String, n: Int) -> [String] {
    var words = [String]()
    var word = ""
    var count = 0
    for c in s {
        if c == " " {
            if count == n {
                words.append(word)
            }
            word = ""
            count = 0
        } else {
            word += String(c)
            count += 1
        }
    }
    if count == n {
        words.append(word)
    }
    return words
}

// Given a string s, you have been tasked to implement a function that returns 
// the number of words in string s that contain exactly n vowels, in order these 
// words appear in the string s.
// If the string s is empty then the function should return 0.
// Examples:
// countWords(s: "Mary had a little lamb", n: 4) == 1
// countWords(s: "Mary had a little lamb", n: 3) == 2
// countWords(s: "simple white space", n: 2) == 0
// countWords(s: "Hello world", n: 4) == 0
// countWords(s: "Uncle sam", n: 3) == 1
func countWords(s: String, n: Int) -> Int {
    var count = 0
    for word in s.split(separator: " ") {
        var vowels = 0
        for c in word {
            if c == "a" || c == "e" || c == "i" || c == "o" || c == "u" {
                vowels += 1
            }
        }
        if vowels == n {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func selectWords(s: String, n: Int) -> [String] {
    var words = [String]()
    var word = ""
    var count = 0
    for char in s {
        if char == " " {
            if count == n {
                words.append(word)
            }
            word = ""
            count = 0
        } else {
            word += String(char)
            count += 1
        }
    }
    if count == n {
        words.append(word)
    }
    return words
}
```swift
// Given a string s and a natural number n, you have been tasked to implement 
// a function that returns an array of all words from string s that contain exactly 
// n consonants, in order these words appear in the string s.
// If the string s is empty then the function should return an empty array.
// Note: you may assume the input string contains only letters and spaces.
// Examples:
// selectWords(s: "Mary had a little lamb", n: 4) == ["little"]
// selectWords(s: "Mary had a little lamb", n: 3) == ["Mary", "lamb"]
// selectWords(s: "simple white space", n: 2) == [] as [String]
// selectWords(s: "Hello world", n: 4) == ["world"]
// selectWords(s: "Uncle sam", n: 3) == ["Uncle"]
func selectWords(s: String, n: Int) -> [String] {
    var words = [String]()
    var word = ""
    var count = 0
    for char in s {
        if char == " " {
            if count == n {
                words.append(word)
            }
            word = ""
            count = 0
        } else {
            word += String(char)
            count += 1
        }
    }
    if count == n {
        words.append(word)
    }
    return words
}
<|file_separator|>
 // XCTAssertTrue failed

func selectWords(s: String, n: Int) -> [String] {
    // Write your code here
    var words = [String]()
    var word = ""
    var count = 0
    for char in s {
        if char == " " {
            if count == n {
                words.append(word)
            }
            word = ""
            count = 0
        } else {
            word += String(char)
            count += 1
        }
    }
    if count == n {
        words.append(word)
    }
    return words
}
```swift
// Given a string s and a natural number n, you have been tasked to implement 
// a function that returns an array of all words from string s that contain exactly 
// n consonants, in order these words appear in the string s.
// If the string s is empty then the function should return an empty array.
// Note: you may assume the input string contains only letters and spaces.
// Examples:
// selectWords(s: "Mary had a little lamb", n: 4) == ["little"]
// selectWords(s: "Mary had a little lamb", n: 3) == ["Mary", "lamb"]
// selectWords(s: "simple white space", n: 2) == [] as [String]
// selectWords(s: "Hello world", n: 4) == ["world"]
// selectWords(s: "Uncle sam", n: 3) == ["Uncle"]
func selectWords(s: String, n: Int) -> [String] {
    // Write your code here
    var words = [String]()
    var word = ""
    var count = 0
    for char in s {
        if char == " " {
            if count == n {
                words.append(word)
            }
            word = ""
            count = 0
        } else {
            word += String(char)
            count += 1
        }
    }
    if count == n {
        words.append(word)
    }
    return words
}
<|file_separator|>
 // XCTAssertTrue failed

func selectWords(s: String, n: Int) -> [String] {
    var result = [String]()
    var count = 0
    for char in s {
        if char.isLetter {
            count += 1
        }
        if count == n {
            result.append(String(char))
            count = 0
        }
    }
    return result
}
```swift
// Given a string s and a natural number n, you have been tasked to implement 
// a function that returns an array of all words from string s that contain exactly 
// n consonants, in order these words appear in the string s.
// If the string s is empty then the function should return an empty array.
// Note: you may assume the input string contains only letters and spaces.
// Examples:
// selectWords(s: "Mary had a little lamb", n: 4) == ["little"]
// selectWords(s: "Mary had a little lamb", n: 3) == ["Mary", "lamb"]
// selectWords(s: "simple white space", n: 2) == [] as [String]
// selectWords(s: "Hello world", n: 4) == ["world"]
// selectWords(s: "Uncle sam", n: 3) == ["Uncle"]
func selectWords(s: String, n: Int) -> [String] {
    var result = [String]()
    var count = 0
    for char in s {
        if char.isLetter {
            count += 1
        }
        if count == n {
            result.append(String(char))
            count = 0
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func selectWords(s: String, n: Int) -> [String] {
    var result = [String]()
    var count = 0
    for char in s {
        if char == " " {
            count = 0
        } else if isVowel(char) {
            count += 1
        } else {
            count = 0
        }
        if count == n {
            result.append(String(char))
        }
    }
    return result
}

func isVowel(_ char: Character) -> Bool {
    switch char {
    case "a", "e", "i", "o", "u":
        return true
    default:
        return false
    }
}
```swift
// Given a string s and a natural number n, you have been tasked to implement 
// a function that returns an array of all words from string s that contain exactly 
// n consonants, in order these words appear in the string s.
// If the string s is empty then the function should return an empty array.
// Note: you may assume the input string contains only letters and spaces.
// Examples:
// selectWords(s: "Mary had a little lamb", n: 4) == ["little"]
// selectWords(s: "Mary had a little lamb", n: 3) == ["Mary", "lamb"]
// selectWords(s: "simple white space", n: 2) == [] as [String]
// selectWords(s: "Hello world", n: 4) == ["world"]
// selectWords(s: "Uncle sam", n: 3) == ["Uncle"]
func selectWords(s: String, n: Int) -> [String] {
    var result = [String]()
    var count = 0
    for char in s {
        if char == " " {
            count = 0
        } else if isVowel(char) {
            count += 1
        } else {
            count = 0
        }
        if count == n {
            result.append(String(char))
        }
    }
    return result
}

func isVowel(_ char: Character) -> Bool {
    switch char {
    case "a", "e", "i", "o", "u":
        return true
    default:
        return false
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func selectWords(s: String, n: Int) -> [String] {
  // your code here
  var words = [String]()
  var count = 0
  var word = ""
  for char in s {
    if char == " " {
      if count == n {
        words.append(word)
        word = ""
        count = 0
      } else {
        word = ""
        count = 0
      }
    } else {
      word += String(char)
      count += 1
    }
  }
  if count == n {
    words.append(word)
  }
  return words
}
```swift
// Given a string s and a natural number n, you have been tasked to implement 
// a function that returns an array of all words from string s that contain exactly 
// n consonants, in order these words appear in the string s.
// If the string s is empty then the function should return an empty array.
// Note: you may assume the input string contains only letters and spaces.
// Examples:
// selectWords(s: "Mary had a little lamb", n: 4) == ["little"]
// selectWords(s: "Mary had a little lamb", n: 3) == ["Mary", "lamb"]
// selectWords(s: "simple white space", n: 2) == [] as [String]
// selectWords(s: "Hello world", n: 4) == ["world"]
// selectWords(s: "Uncle sam", n: 3) == ["Uncle"]
func selectWords(s: String, n: Int) -> [String] {
  // your code here
  var words = [String]()
  var count = 0
  var word = ""
  for char in s {
    if char == " " {
      if count == n {
        words.append(word)
        word = ""
        count = 0
      } else {
        word = ""
        count = 0
      }
    } else {
      word += String(char)
      count += 1
    }
  }
  if count == n {
    words.append(word)
  }
  return words
}
<|file_separator|>
 // XCTAssertTrue failed

func selectWords(s: String, n: Int) -> [String] {
    var result = [String]()
    var word = ""
    var count = 0
    for c in s {
        if c == " " {
            if count == n {
                result.append(word)
            }
            word = ""
            count = 0
        } else {
            word += String(c)
            count += 1
        }
    }
    if count == n {
        result.append(word)
    }
    return result
}
```swift
// Given a string s and a natural number n, you have been tasked to implement 
// a function that returns an array of all words from string s that contain exactly 
// n consonants, in order these words appear in the string s.
// If the string s is empty then the function should return an empty array.
// Note: you may assume the input string contains only letters and spaces.
// Examples:
// selectWords(s: "Mary had a little lamb", n: 4) == ["little"]
// selectWords(s: "Mary had a little lamb", n: 3) == ["Mary", "lamb"]
// selectWords(s: "simple white space", n: 2) == [] as [String]
// selectWords(s: "Hello world", n: 4) == ["world"]
// selectWords(s: "Uncle sam", n: 3) == ["Uncle"]
func selectWords(s: String, n: Int) -> [String] {
    var result = [String]()
    var word = ""
    var count = 0
    for c in s {
        if c == " " {
            if count == n {
                result.append(word)
            }
            word = ""
            count = 0
        } else {
            word += String(c)
            count += 1
        }
    }
    if count == n {
        result.append(word)
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func getClosestVowel(word: String) -> String {
    var vowel = ""
    for char in word {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            vowel = String(char)
            break
        }
    }
    if vowel == "" {
        return ""
    }
    var index = 0
    for char in word {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            index = word.index(word.startIndex, offsetBy: index)
            break
        }
        index += 1
    }
    var result = ""
    for char in word {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            result = String(char)
            break
        }
        if word.index(word.startIndex, offsetBy: index) == word.endIndex {
            break
        }
        index += 1
    }
    return result
}
```swift
// You are given a word. Your task is to find the closest vowel that stands between 
// two consonants from the right side of the word (case sensitive).
// Vowels in the beginning and ending doesn't count. Return empty string if you didn't
// find any vowel met the above condition. 
// You may assume that the given string contains English letter only.
// Example:
// getClosestVowel(word: "yogurt") == "u"
// getClosestVowel(word: "FULL") == "U"
// getClosestVowel(word: "quick") == ""
// getClosestVowel(word: "ab") == ""
func getClosestVowel(word: String) -> String {
    var vowel = ""
    for char in word {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            vowel = String(char)
            break
        }
    }
    if vowel == "" {
        return ""
    }
    var index = 0
    for char in word {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            index = word.index(word.startIndex, offsetBy: index)
            break
        }
        index += 1
    }
    var result = ""
    for char in word {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            result = String(char)
            break
        }
        if word.index(word.startIndex, offsetBy: index) == word.endIndex {
            break
        }
        index += 1
    }
    return result
}
<|file_separator|>
index = word.index(word.startIndex, offsetBy: index) // cannot assign value of type 'String.Index' to type 'Int'

func getClosestVowel(word: String) -> String {
    var vowel = ""
    var vowelIndex = 0
    var vowelFound = false
    var vowelFoundIndex = 0
    for (index, char) in word.enumerated() {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            vowel = char
            vowelIndex = index
            vowelFound = true
        }
    }
    if vowelFound {
        for (index, char) in word.reversed().enumerated() {
            if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
                vowelFoundIndex = index
                break
            }
        }
        if vowelFoundIndex > vowelIndex {
            return vowel
        }
    }
    return ""
}
```swift
// You are given a word. Your task is to find the closest vowel that stands between 
// two consonants from the right side of the word (case sensitive).
// Vowels in the beginning and ending doesn't count. Return empty string if you didn't
// find any vowel met the above condition. 
// You may assume that the given string contains English letter only.
// Example:
// getClosestVowel(word: "yogurt") == "u"
// getClosestVowel(word: "FULL") == "U"
// getClosestVowel(word: "quick") == ""
// getClosestVowel(word: "ab") == ""
func getClosestVowel(word: String) -> String {
    var vowel = ""
    var vowelIndex = 0
    var vowelFound = false
    var vowelFoundIndex = 0
    for (index, char) in word.enumerated() {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            vowel = char
            vowelIndex = index
            vowelFound = true
        }
    }
    if vowelFound {
        for (index, char) in word.reversed().enumerated() {
            if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
                vowelFoundIndex = index
                break
            }
        }
        if vowelFoundIndex > vowelIndex {
            return vowel
        }
    }
    return ""
}
<|file_separator|>
vowel = char // cannot assign value of type 'String.Element' (aka 'Character') to type 'String'

func getClosestVowel(word: String) -> String {
    var vowels = ["a", "e", "i", "o", "u"]
    var word = word.lowercased()
    var result = ""
    var index = word.index(word.endIndex, offsetBy: -1)
    while index != word.startIndex {
        if vowels.contains(String(word[index])) {
            result = String(word[index])
            break
        }
        index = word.index(before: index)
    }
    return result
}
```swift
// You are given a word. Your task is to find the closest vowel that stands between 
// two consonants from the right side of the word (case sensitive).
// Vowels in the beginning and ending doesn't count. Return empty string if you didn't
// find any vowel met the above condition. 
// You may assume that the given string contains English letter only.
// Example:
// getClosestVowel(word: "yogurt") == "u"
// getClosestVowel(word: "FULL") == "U"
// getClosestVowel(word: "quick") == ""
// getClosestVowel(word: "ab") == ""
func getClosestVowel(word: String) -> String {
    var vowels = ["a", "e", "i", "o", "u"]
    var word = word.lowercased()
    var result = ""
    var index = word.index(word.endIndex, offsetBy: -1)
    while index != word.startIndex {
        if vowels.contains(String(word[index])) {
            result = String(word[index])
            break
        }
        index = word.index(before: index)
    }
    return result
}<|file_separator|>```
var vowels = ["a", "e", "i", "o", "u"] // variable 'vowels' was never mutated; consider changing to 'let' constant
var word = word.lowercased() // variable 'word' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func getClosestVowel(word: String) -> String {
    var vowels = ["a", "e", "i", "o", "u"]
    var word = word.lowercased()
    var result = ""
    var i = word.count - 1
    while i >= 0 {
        if vowels.contains(String(word[word.index(word.startIndex, offsetBy: i)])) {
            result = String(word[word.index(word.startIndex, offsetBy: i)])
            break
        }
        i -= 1
    }
    return result
}
```swift
// You are given a word. Your task is to find the closest vowel that stands between 
// two consonants from the right side of the word (case sensitive).
// Vowels in the beginning and ending doesn't count. Return empty string if you didn't
// find any vowel met the above condition. 
// You may assume that the given string contains English letter only.
// Example:
// getClosestVowel(word: "yogurt") == "u"
// getClosestVowel(word: "FULL") == "U"
// getClosestVowel(word: "quick") == ""
// getClosestVowel(word: "ab") == ""
func getClosestVowel(word: String) -> String {
    var vowels = ["a", "e", "i", "o", "u"]
    var word = word.lowercased()
    var result = ""
    var i = word.count - 1
    while i >= 0 {
        if vowels.contains(String(word[word.index(word.startIndex, offsetBy: i)])) {
            result = String(word[word.index(word.startIndex, offsetBy: i)])
            break
        }
        i -= 1
    }
    return result
}
<|file_separator|>
var vowels = ["a", "e", "i", "o", "u"] // variable 'vowels' was never mutated; consider changing to 'let' constant
var word = word.lowercased() // variable 'word' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func getClosestVowel(word: String) -> String {
    var vowel = ""
    let vowels = ["a", "e", "i", "o", "u"]
    let word = word.lowercased()
    let wordArray = Array(word)
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[wordArray.count - 1 - i])) {
            vowel = String(wordArray[wordArray.count - 1 - i])
            break
        }
    }
    if vowel == "" {
        return ""
    }
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[i])) {
            if wordArray[i] == "u" {
                return ""
            }
            return String(wordArray[i])
        }
    }
    return ""
}
```swift
// You are given a word. Your task is to find the closest vowel that stands between 
// two consonants from the right side of the word (case sensitive).
// Vowels in the beginning and ending doesn't count. Return empty string if you didn't
// find any vowel met the above condition. 
// You may assume that the given string contains English letter only.
// Example:
// getClosestVowel(word: "yogurt") == "u"
// getClosestVowel(word: "FULL") == "U"
// getClosestVowel(word: "quick") == ""
// getClosestVowel(word: "ab") == ""
func getClosestVowel(word: String) -> String {
    var vowel = ""
    let vowels = ["a", "e", "i", "o", "u"]
    let word = word.lowercased()
    let wordArray = Array(word)
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[wordArray.count - 1 - i])) {
            vowel = String(wordArray[wordArray.count - 1 - i])
            break
        }
    }
    if vowel == "" {
        return ""
    }
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[i])) {
            if wordArray[i] == "u" {
                return ""
            }
            return String(wordArray[i])
        }
    }
    return ""
}
<|file_separator|>
 // XCTAssertTrue failed

func getClosestVowel(word: String) -> String {
    var vowels = ["a", "e", "i", "o", "u"]
    var word = word
    var result = ""
    var vowel = ""
    var i = 0
    while i < word.count {
        if vowels.contains(String(word[word.index(word.startIndex, offsetBy: i)])) {
            vowel = String(word[word.index(word.startIndex, offsetBy: i)])
            break
        }
        i += 1
    }
    if vowel == "" {
        return ""
    }
    var j = word.count - 1
    while j >= 0 {
        if vowels.contains(String(word[word.index(word.startIndex, offsetBy: j)])) {
            if j == word.count - 1 {
                return ""
            }
            result = String(word[word.index(word.startIndex, offsetBy: j + 1)])
            break
        }
        j -= 1
    }
    if result == "" {
        return ""
    }
    if vowel == "a" || vowel == "e" || vowel == "i" || vowel == "o" || vowel == "u" {
        return ""
    }
    return result
}
```swift
// You are given a word. Your task is to find the closest vowel that stands between 
// two consonants from the right side of the word (case sensitive).
// Vowels in the beginning and ending doesn't count. Return empty string if you didn't
// find any vowel met the above condition. 
// You may assume that the given string contains English letter only.
// Example:
// getClosestVowel(word: "yogurt") == "u"
// getClosestVowel(word: "FULL") == "U"
// getClosestVowel(word: "quick") == ""
// getClosestVowel(word: "ab") == ""
func getClosestVowel(word: String) -> String {
    var vowels = ["a", "e", "i", "o", "u"]
    var word = word
    var result = ""
    var vowel = ""
    var i = 0
    while i < word.count {
        if vowels.contains(String(word[word.index(word.startIndex, offsetBy: i)])) {
            vowel = String(word[word.index(word.startIndex, offsetBy: i)])
            break
        }
        i += 1
    }
    if vowel == "" {
        return ""
    }
    var j = word.count - 1
    while j >= 0 {
        if vowels.contains(String(word[word.index(word.startIndex, offsetBy: j)])) {
            if j == word.count - 1 {
                return ""
            }
            result = String(word[word.index(word.startIndex, offsetBy: j + 1)])
            break
        }
        j -= 1
    }
    if result == "" {
        return ""
    }
    if vowel == "a" || vowel == "e" || vowel == "i" || vowel == "o" || vowel == "u" {
        return ""
    }
    return result
}
<|file_separator|>
var vowels = ["a", "e", "i", "o", "u"] // variable 'vowels' was never mutated; consider changing to 'let' constant
var word = word // variable 'word' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func getClosestVowel(word: String) -> String {
    var vowels = ["a", "e", "i", "o", "u"]
    let wordArray = Array(word)
    var vowelFound = false
    var closestVowel = ""
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[wordArray.count - i - 1])) {
            vowelFound = true
            closestVowel = String(wordArray[wordArray.count - i - 1])
            break
        }
    }
    if !vowelFound {
        return ""
    }
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[i])) {
            return closestVowel
        }
    }
    return ""
}

func longestPalindrome(words: String) -> String {
    var longestPalindrome = ""
    let wordsArray = Array(words)
    for i in 0..<wordsArray.count {
        for j in i+1..<wordsArray.count {
            if isPalindrome(word: String(wordsArray[i...j])) && String(wordsArray[i...j]) > longestPalindrome {
                longestPalindrome = String(wordsArray[i...j])
            }
        }
    }
    return longestPalindrome
}

func isPalindrome(word: String) -> Bool {
    let wordArray = Array(word)
    for i in 0..<wordArray.count/2 {
        if wordArray[i] != wordArray[wordArray.count - i - 1] {
            return false
        }
    }
    return true
}
```swift
// You are given a word. Your task is to find the closest vowel that stands between 
// two consonants from the right side of the word (case sensitive).
// Vowels in the beginning and ending doesn't count. Return empty string if you didn't
// find any vowel met the above condition. 
// You may assume that the given string contains English letter only.
// Example:
// getClosestVowel(word: "yogurt") == "u"
// getClosestVowel(word: "FULL") == "U"
// getClosestVowel(word: "quick") == ""
// getClosestVowel(word: "ab") == ""
func getClosestVowel(word: String) -> String {
    var vowels = ["a", "e", "i", "o", "u"]
    let wordArray = Array(word)
    var vowelFound = false
    var closestVowel = ""
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[wordArray.count - i - 1])) {
            vowelFound = true
            closestVowel = String(wordArray[wordArray.count - i - 1])
            break
        }
    }
    if !vowelFound {
        return ""
    }
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[i])) {
            return closestVowel
        }
    }
    return ""
}

// You are given a string of words. Your task is to find the longest word that is a 
// palindrome. If there are more than one longest palindrome, return the first one.
// Example:
// longestPalindrome(words: "a b c b a") == "b c b a"
// longestPalindrome(words: "a b c b a b") == "b c b a"
// longestPalindrome(words: "a b c b a b c") == "b c b a"
// longestPalindrome(words: "a b c b a b c d") == "b c b a"
// longestPalindrome(words: "a b c b a b c d e") == "b c b a"
func longestPalindrome(words: String) -> String {
    var longestPalindrome = ""
    let wordsArray = Array(words)
    for i in 0..<wordsArray.count {
        for j in i+1..<wordsArray.count {
            if isPalindrome(word: String(wordsArray[i...j])) && String(wordsArray[i...j]) > longestPalindrome {
                longestPalindrome = String(wordsArray[i...j])
            }
        }
    }
    return longestPalindrome
}

func isPalindrome(word: String) -> Bool {
    let wordArray = Array(word)
    for i in 0..<wordArray.count/2 {
        if wordArray[i] != wordArray[wordArray.count - i - 1] {
            return false
        }
    }
    return true
}

// You are given a string of words. Your task is to find the longest word that is a 
// palindrome. If there are more than one longest palindrome, return the first one.
// Example:
// longestPalindrome(words: "a b c b a") == "b c b a"
// longestPalindrome(words: "a b c b a b") == "b c b a"
// longestPalindrome(words: "a b c b a b c") == "b c b a"
// longestPalindrome(words: "a b c b a b c d") == "b c b a"
// longestPalindrome(words: "a b c b a b c d e") == "b c b a"
func longestPalindrome(words: String) -> String {
    var longestPalindrome = ""
    let wordsArray = Array(words)
    for i in 0..<wordsArray.count {
        for j in i+1..<wordsArray.count {
            if isPalindrome(word: String(wordsArray[i...j])) && String(wordsArray[i...j]) > longestPalindrome {
                longestPalindrome = String(wordsArray[i...j])
            }
        }
    }
    return longestPalindrome
}

func isPalindrome(word: String) -> Bool {
    let wordArray = Array(word)
    for i in 0..<wordArray.count/2 {
        if wordArray[i] != wordArray[wordArray.count - i - 1] {
            return false
        }
    }
    return true
}

// You are given a string of words. Your task is to find the longest word that is a 
// palindrome. If there are more than one longest palindrome, return the first one.
// Example:
// longestPalindrome(words: "a b c b a") == "b c b a"
// longestPalindrome(words: "a b c b a b") == "b c b a"
// longestPalindrome(words: "a b c b a b c") == "b c b a"
// longestPalindrome(words: "a b c b a b c d") == "b c b a"
// longestPalindrome(words: "a
var vowels = ["a", "e", "i", "o", "u"] // variable 'vowels' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func getClosestVowel(word: String) -> String {
    let vowels = ["a", "e", "i", "o", "u"]
    let wordArray = Array(word)
    var vowel = ""
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[wordArray.count - i - 1])) {
            vowel = String(wordArray[wordArray.count - i - 1])
            break
        }
    }
    if vowel == "" {
        return ""
    }
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[i])) {
            return vowel
        }
    }
    return ""
}
```swift
// You are given a word. Your task is to find the closest vowel that stands between 
// two consonants from the right side of the word (case sensitive).
// Vowels in the beginning and ending doesn't count. Return empty string if you didn't
// find any vowel met the above condition. 
// You may assume that the given string contains English letter only.
// Example:
// getClosestVowel(word: "yogurt") == "u"
// getClosestVowel(word: "FULL") == "U"
// getClosestVowel(word: "quick") == ""
// getClosestVowel(word: "ab") == ""
func getClosestVowel(word: String) -> String {
    let vowels = ["a", "e", "i", "o", "u"]
    let wordArray = Array(word)
    var vowel = ""
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[wordArray.count - i - 1])) {
            vowel = String(wordArray[wordArray.count - i - 1])
            break
        }
    }
    if vowel == "" {
        return ""
    }
    for i in 0..<wordArray.count {
        if vowels.contains(String(wordArray[i])) {
            return vowel
        }
    }
    return ""
}
<|file_separator|>
 // XCTAssertTrue failed

```swift
// You are given a word. Your task is to find the closest vowel that stands between 
// two consonants from the right side of the word (case sensitive).
// Vowels in the beginning and ending doesn't count. Return empty string if you didn't
// find any vowel met the above condition. 
// You may assume that the given string contains English letter only.
// Example:
// getClosestVowel(word: "yogurt") == "u"
// getClosestVowel(word: "FULL") == "U"
// getClosestVowel(word: "quick") == ""
// getClosestVowel(word: "ab") == ""
func getClosestVowel(word: String) -> String {
    var vowels = ["a", "e", "i", "o", "u"]
    var result = ""
    var wordArray = Array(word)
    var vowelIndex = 0
    var vowelFound = false
    var vowelFoundIndex = 0
    var vowelFoundIndex2 = 0
    var vowelFoundIndex3 = 0
    var vowelFoundIndex4 = 0
    var vowelFoundIndex5 = 0
    var vowelFoundIndex6 = 0
    var vowelFoundIndex7 = 0
    var vowelFoundIndex8 = 0
    var vowelFoundIndex9 = 0
    var vowelFoundIndex10 = 0
    var vowelFoundIndex11 = 0
    var vowelFoundIndex12 = 0
    var vowelFoundIndex13 = 0
    var vowelFoundIndex14 = 0
    var vowelFoundIndex15 = 0
    var vowelFoundIndex16 = 0
    var vowelFoundIndex17 = 0
    var vowelFoundIndex18 = 0
    var vowelFoundIndex19 = 0
    var vowelFoundIndex20 = 0
    var vowelFoundIndex21 = 0
    var vowelFoundIndex22 = 0
    var vowelFoundIndex23 = 0
    var vowelFoundIndex24 = 0
    var vowelFoundIndex25 = 0
    var vowelFoundIndex26 = 0
    var vowelFoundIndex27 = 0
    var vowelFoundIndex28 = 0
    var vowelFoundIndex29 = 0
    var vowelFoundIndex30 = 0
    var vowelFoundIndex31 = 0
    var vowelFoundIndex32 = 0
    var vowelFoundIndex33 = 0
    var vowelFoundIndex34 = 0
    var vowelFoundIndex35 = 0
    var vowelFoundIndex36 = 0
    var vowelFoundIndex37 = 0
    var vowelFoundIndex38 = 0
    var vowelFoundIndex39 = 0
    var vowelFoundIndex40 = 0
    var vowelFoundIndex41 = 0
    var vowelFoundIndex42 = 0
    var vowelFoundIndex43 = 0
    var vowelFoundIndex44 = 0
    var vowelFoundIndex45 = 0
    var vowelFoundIndex46 = 0
    var vowelFoundIndex47 = 0
    var vowelFoundIndex48 = 0
    var vowelFoundIndex49 = 0
    var vowelFoundIndex50 = 0
    var vowelFoundIndex51 = 0
    var vowelFoundIndex52 = 0
    var vowelFoundIndex53 = 0
    var vowelFoundIndex54 = 0
    var vowelFoundIndex55 = 0
    var vowelFoundIndex56 = 0
    var vowelFoundIndex57 = 0
    var vowelFoundIndex58 = 0
    var vowelFoundIndex59 = 0
    var vowelFoundIndex60 = 0
    var vowelFoundIndex61 = 0
    var vowelFoundIndex62 = 0
    var vowelFoundIndex63 = 0
    var vowelFoundIndex64 = 0
    var vowelFoundIndex65 = 0
    var vowelFoundIndex66 = 0
    var vowelFoundIndex67 = 0
    var vowelFoundIndex68 = 0
    var vowelFoundIndex69 = 0
    var vowelFoundIndex70 = 0
    var vowelFoundIndex71 = 0
    var vowelFoundIndex72 = 0
    var vowelFoundIndex73 = 0
    var vowelFoundIndex74 = 0
    var vowelFoundIndex75 = 0
    var vowelFoundIndex76 = 0
    var vowelFoundIndex77 = 0
    var vowelFoundIndex78 = 0
    var vowelFoundIndex79 = 0
    var vowelFoundIndex80 = 0
    var vowelFoundIndex81 = 0
    var vowelFoundIndex82 = 0
    var vowelFoundIndex83 = 0
    var vowelFoundIndex84 = 0
    var vowelFoundIndex85 = 0
    var vowelFoundIndex86 = 0
    var vowelFoundIndex87 = 0
    var vowelFoundIndex88 = 0
    var vowelFoundIndex89 = 0
    var vowel
XCTAssertTrue(getClosestVowel(word: "yogurt") == "u") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "full") == "u") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "easy") == "") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "eAsy") == "") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "ali") == "") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "bad") == "a") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "most") == "o") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "ab") == "") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "ba") == "") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "quick") == "") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "anime") == "i") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "Asia") == "") // cannot find 'getClosestVowel' in scope
XCTAssertTrue(getClosestVowel(word: "Above") == "o") // cannot find 'getClosestVowel' in scope

func getClosestVowel(word: String) -> String {
    var vowel = ""
    var vowelIndex = -1
    for i in 0..<word.count {
        if word[word.index(word.startIndex, offsetBy: i)] == "a" ||
            word[word.index(word.startIndex, offsetBy: i)] == "e" ||
            word[word.index(word.startIndex, offsetBy: i)] == "i" ||
            word[word.index(word.startIndex, offsetBy: i)] == "o" ||
            word[word.index(word.startIndex, offsetBy: i)] == "u" {
            vowel = String(word[word.index(word.startIndex, offsetBy: i)])
            vowelIndex = i
            break
        }
    }
    if vowelIndex == -1 {
        return ""
    }
    var closestVowel = ""
    var closestVowelIndex = -1
    for i in vowelIndex+1..<word.count {
        if word[word.index(word.startIndex, offsetBy: i)] == "a" ||
            word[word.index(word.startIndex, offsetBy: i)] == "e" ||
            word[word.index(word.startIndex, offsetBy: i)] == "i" ||
            word[word.index(word.startIndex, offsetBy: i)] == "o" ||
            word[word.index(word.startIndex, offsetBy: i)] == "u" {
            closestVowel = String(word[word.index(word.startIndex, offsetBy: i)])
            closestVowelIndex = i
            break
        }
    }
    if closestVowelIndex == -1 {
        return ""
    }
    return closestVowel
}
```swift
// You are given a word. Your task is to find the closest vowel that stands between 
// two consonants from the right side of the word (case sensitive).
// Vowels in the beginning and ending doesn't count. Return empty string if you didn't
// find any vowel met the above condition. 
// You may assume that the given string contains English letter only.
// Example:
// getClosestVowel(word: "yogurt") == "u"
// getClosestVowel(word: "FULL") == "U"
// getClosestVowel(word: "quick") == ""
// getClosestVowel(word: "ab") == ""
func getClosestVowel(word: String) -> String {
    var vowel = ""
    var vowelIndex = -1
    for i in 0..<word.count {
        if word[word.index(word.startIndex, offsetBy: i)] == "a" ||
            word[word.index(word.startIndex, offsetBy: i)] == "e" ||
            word[word.index(word.startIndex, offsetBy: i)] == "i" ||
            word[word.index(word.startIndex, offsetBy: i)] == "o" ||
            word[word.index(word.startIndex, offsetBy: i)] == "u" {
            vowel = String(word[word.index(word.startIndex, offsetBy: i)])
            vowelIndex = i
            break
        }
    }
    if vowelIndex == -1 {
        return ""
    }
    var closestVowel = ""
    var closestVowelIndex = -1
    for i in vowelIndex+1..<word.count {
        if word[word.index(word.startIndex, offsetBy: i)] == "a" ||
            word[word.index(word.startIndex, offsetBy: i)] == "e" ||
            word[word.index(word.startIndex, offsetBy: i)] == "i" ||
            word[word.index(word.startIndex, offsetBy: i)] == "o" ||
            word[word.index(word.startIndex, offsetBy: i)] == "u" {
            closestVowel = String(word[word.index(word.startIndex, offsetBy: i)])
            closestVowelIndex = i
            break
        }
    }
    if closestVowelIndex == -1 {
        return ""
    }
    return closestVowel
}
<|file_separator|>
var vowel = "" // variable 'vowel' was written to, but never read
 // XCTAssertTrue failed

func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for i in 0..<lst.count {
        if lst[i] == "(" {
            stack.append(lst[i])
        } else if lst[i] == ")" {
            if stack.count == 0 {
                return "No"
            } else {
                stack.removeLast()
            }
        }
    }
    if stack.count == 0 {
        return "Yes"
    } else {
        return "No"
    }
}
```swift
// You are given an array of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
// Your job is to check if it is possible to concatenate the two strings in
// some order, that the resulting string will be good.
// A string S is considered to be good if and only if all parentheses in S
// are balanced. For example: the string '(())()' is good, while the string
// '())' is not.
// Return 'Yes' if there's a way to make a good string, and return 'No' otherwise.
// Examples:
// matchParens(lst: ["()(", ")"]) == "Yes"
// matchParens(lst: [")", ")"]) == "No"
func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for i in 0..<lst.count {
        if lst[i] == "(" {
            stack.append(lst[i])
        } else if lst[i] == ")" {
            if stack.count == 0 {
                return "No"
            } else {
                stack.removeLast()
            }
        }
    }
    if stack.count == 0 {
        return "Yes"
    } else {
        return "No"
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for str in lst {
        if str == "(" {
            stack.append(str)
        } else if str == ")" {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    }
    return "No"
}
```swift
// You are given an array of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
// Your job is to check if it is possible to concatenate the two strings in
// some order, that the resulting string will be good.
// A string S is considered to be good if and only if all parentheses in S
// are balanced. For example: the string '(())()' is good, while the string
// '())' is not.
// Return 'Yes' if there's a way to make a good string, and return 'No' otherwise.
// Examples:
// matchParens(lst: ["()(", ")"]) == "Yes"
// matchParens(lst: [")", ")"]) == "No"
func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for str in lst {
        if str == "(" {
            stack.append(str)
        } else if str == ")" {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    }
    return "No"
}
<|file_separator|>
 // XCTAssertTrue failed

func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for i in lst {
        if i == "(" {
            stack.append(i)
        } else if i == ")" {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    }
    return "No"
}
```swift
// You are given an array of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
// Your job is to check if it is possible to concatenate the two strings in
// some order, that the resulting string will be good.
// A string S is considered to be good if and only if all parentheses in S
// are balanced. For example: the string '(())()' is good, while the string
// '())' is not.
// Return 'Yes' if there's a way to make a good string, and return 'No' otherwise.
// Examples:
// matchParens(lst: ["()(", ")"]) == "Yes"
// matchParens(lst: [")", ")"]) == "No"
func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for i in lst {
        if i == "(" {
            stack.append(i)
        } else if i == ")" {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    }
    return "No"
}
<|file_separator|>
 // XCTAssertTrue failed

func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for i in lst {
        if i == "(" {
            stack.append(i)
        } else if i == ")" {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    }
    return "No"
}
```swift
// You are given an array of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
// Your job is to check if it is possible to concatenate the two strings in
// some order, that the resulting string will be good.
// A string S is considered to be good if and only if all parentheses in S
// are balanced. For example: the string '(())()' is good, while the string
// '())' is not.
// Return 'Yes' if there's a way to make a good string, and return 'No' otherwise.
// Examples:
// matchParens(lst: ["()(", ")"]) == "Yes"
// matchParens(lst: [")", ")"]) == "No"
func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for i in lst {
        if i == "(" {
            stack.append(i)
        } else if i == ")" {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    }
    return "No"
}
<|file_separator|>
 // XCTAssertTrue failed

func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for str in lst {
        if str == "(" {
            stack.append(str)
        } else if str == ")" {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    } else {
        return "No"
    }
}
```swift
// You are given an array of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
// Your job is to check if it is possible to concatenate the two strings in
// some order, that the resulting string will be good.
// A string S is considered to be good if and only if all parentheses in S
// are balanced. For example: the string '(())()' is good, while the string
// '())' is not.
// Return 'Yes' if there's a way to make a good string, and return 'No' otherwise.
// Examples:
// matchParens(lst: ["()(", ")"]) == "Yes"
// matchParens(lst: [")", ")"]) == "No"
func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for str in lst {
        if str == "(" {
            stack.append(str)
        } else if str == ")" {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    } else {
        return "No"
    }
}
<|file_separator|>```
 // XCTAssertTrue failed

func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for s in lst {
        if s == "(" {
            stack.append(s)
        } else {
            if stack.isEmpty {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.isEmpty {
        return "Yes"
    }
    return "No"
}
```swift
// You are given an array of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
// Your job is to check if it is possible to concatenate the two strings in
// some order, that the resulting string will be good.
// A string S is considered to be good if and only if all parentheses in S
// are balanced. For example: the string '(())()' is good, while the string
// '())' is not.
// Return 'Yes' if there's a way to make a good string, and return 'No' otherwise.
// Examples:
// matchParens(lst: ["()(", ")"]) == "Yes"
// matchParens(lst: [")", ")"]) == "No"
func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for s in lst {
        if s == "(" {
            stack.append(s)
        } else {
            if stack.isEmpty {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.isEmpty {
        return "Yes"
    }
    return "No"
}
<|file_separator|>
 // XCTAssertTrue failed

func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for i in lst {
        if i == "(" {
            stack.append(i)
        } else {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    } else {
        return "No"
    }
}
```swift
// You are given an array of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
// Your job is to check if it is possible to concatenate the two strings in
// some order, that the resulting string will be good.
// A string S is considered to be good if and only if all parentheses in S
// are balanced. For example: the string '(())()' is good, while the string
// '())' is not.
// Return 'Yes' if there's a way to make a good string, and return 'No' otherwise.
// Examples:
// matchParens(lst: ["()(", ")"]) == "Yes"
// matchParens(lst: [")", ")"]) == "No"
func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for i in lst {
        if i == "(" {
            stack.append(i)
        } else {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    } else {
        return "No"
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for char in lst {
        if char == "(" {
            stack.append(char)
        } else if char == ")" {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    }
    return "No"
}
```swift
// You are given an array of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
// Your job is to check if it is possible to concatenate the two strings in
// some order, that the resulting string will be good.
// A string S is considered to be good if and only if all parentheses in S
// are balanced. For example: the string '(())()' is good, while the string
// '())' is not.
// Return 'Yes' if there's a way to make a good string, and return 'No' otherwise.
// Examples:
// matchParens(lst: ["()(", ")"]) == "Yes"
// matchParens(lst: [")", ")"]) == "No"
func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for char in lst {
        if char == "(" {
            stack.append(char)
        } else if char == ")" {
            if stack.count == 0 {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.count == 0 {
        return "Yes"
    }
    return "No"
}
<|file_separator|>
 // XCTAssertTrue failed

func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for i in lst {
        if i == "(" {
            stack.append(i)
        } else if i == ")" {
            if stack.isEmpty {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.isEmpty {
        return "Yes"
    }
    return "No"
}
```swift
// You are given an array of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
// Your job is to check if it is possible to concatenate the two strings in
// some order, that the resulting string will be good.
// A string S is considered to be good if and only if all parentheses in S
// are balanced. For example: the string '(())()' is good, while the string
// '())' is not.
// Return 'Yes' if there's a way to make a good string, and return 'No' otherwise.
// Examples:
// matchParens(lst: ["()(", ")"]) == "Yes"
// matchParens(lst: [")", ")"]) == "No"
func matchParens(lst: [String]) -> String {
    var stack = [String]()
    for i in lst {
        if i == "(" {
            stack.append(i)
        } else if i == ")" {
            if stack.isEmpty {
                return "No"
            }
            stack.removeLast()
        }
    }
    if stack.isEmpty {
        return "Yes"
    }
    return "No"
}
<|file_separator|>
 // XCTAssertTrue failed

func matchParens(lst: [String]) -> String {
    // Write your code here
    var stack = [String]()
    for i in 0..<lst.count {
        if lst[i] == "(" {
            stack.append(lst[i])
        } else {
            if stack.count == 0 {
                return "No"
            } else {
                stack.removeLast()
            }
        }
    }
    if stack.count == 0 {
        return "Yes"
    } else {
        return "No"
    }
}
```swift
// You are given an array of two strings, both strings consist of open
// parentheses '(' or close parentheses ')' only.
// Your job is to check if it is possible to concatenate the two strings in
// some order, that the resulting string will be good.
// A string S is considered to be good if and only if all parentheses in S
// are balanced. For example: the string '(())()' is good, while the string
// '())' is not.
// Return 'Yes' if there's a way to make a good string, and return 'No' otherwise.
// Examples:
// matchParens(lst: ["()(", ")"]) == "Yes"
// matchParens(lst: [")", ")"]) == "No"
func matchParens(lst: [String]) -> String {
    // Write your code here
    var stack = [String]()
    for i in 0..<lst.count {
        if lst[i] == "(" {
            stack.append(lst[i])
        } else {
            if stack.count == 0 {
                return "No"
            } else {
                stack.removeLast()
            }
        }
    }
    if stack.count == 0 {
        return "Yes"
    } else {
        return "No"
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if heap.count > k {
            heap.remove()
        }
    }
    while !heap.isEmpty {
        result.append(heap.remove())
    }
    return result
}
```swift
// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the maximum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// maximum(arr: [-3, -4, 5], k: 3) == [-4, -3, 5]
// maximum(arr: [4, -4, 4], k: 2) == [4, 4]
// maximum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [2]
func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if heap.count > k {
            heap.remove()
        }
    }
    while !heap.isEmpty {
        result.append(heap.remove())
    }
    return result
}
<|file_separator|>```
var heap = Heap<Int>(sort: >) // cannot find 'Heap' in scope

func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        if heap.count < k {
            heap.insert(arr[i])
        } else {
            if arr[i] > heap.peek()! {
                heap.remove()
                heap.insert(arr[i])
            }
        }
    }
    while heap.count > 0 {
        result.append(heap.remove()!)
    }
    return result
}

func longestUniqueSubString(s: String) -> Int {
    var result = 0
    var start = 0
    var end = 0
    var map = [Character: Int]()
    while end < s.count {
        if map[s[end]] != nil {
            while start < end {
                if s[start] == s[end] {
                    start += 1
                } else {
                    break
                }
            }
        }
        map[s[end]] = end
        end += 1
        result = max(result, end - start)
    }
    return result
}
```swift
// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the maximum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// maximum(arr: [-3, -4, 5], k: 3) == [-4, -3, 5]
// maximum(arr: [4, -4, 4], k: 2) == [4, 4]
// maximum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [2]
func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        if heap.count < k {
            heap.insert(arr[i])
        } else {
            if arr[i] > heap.peek()! {
                heap.remove()
                heap.insert(arr[i])
            }
        }
    }
    while heap.count > 0 {
        result.append(heap.remove()!)
    }
    return result
}

// Given a string s, find the length of the longest substring without repeating characters.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the given string will in the range of [1, 10^6].
// longestUniqueSubString("abcabcbb") == 3
// longestUniqueSubString("bbbbb") == 1
// longestUniqueSubString("pwwkew") == 3
func longestUniqueSubString(s: String) -> Int {
    var result = 0
    var start = 0
    var end = 0
    var map = [Character: Int]()
    while end < s.count {
        if map[s[end]] != nil {
            while start < end {
                if s[start] == s[end] {
                    start += 1
                } else {
                    break
                }
            }
        }
        map[s[end]] = end
        end += 1
        result = max(result, end - start)
    }
    return result
}

// Given a string s, find the length of the longest substring without repeating characters.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the given string will in the range of [1, 10^6].
// longestUniqueSubString("abcabcbb") == 3
// longestUniqueSubString("bbbbb") == 1
// longestUniqueSubString("pwwkew") == 3
func longestUniqueSubString(s: String) -> Int {
    var result = 0
    var start = 0
    var end = 0
    var map = [Character: Int]()
    while end < s.count {
        if map[s[end]] != nil {
            while start < end {
                if s[start] == s[end] {
                    start += 1
                } else {
                    break
                }
            }
        }
        map[s[end]] = end
        end += 1
        result = max(result, end - start)
    }
    return result
}

// Given a string s, find the length of the longest substring without repeating characters.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the given string will in the range of [1, 10^6].
// longestUniqueSubString("abcabcbb") == 3
// longestUniqueSubString("bbbbb") == 1
// longestUniqueSubString("pwwkew") == 3
func longestUniqueSubString(s: String) -> Int {
    var result = 0
    var start = 0
    var end = 0
    var map = [Character: Int]()
    while end < s.count {
        if map[s[end]] != nil {
            while start < end {
                if s[start] == s[end] {
                    start += 1
                } else {
                    break
                }
            }
        }
        map[s[end]] = end
        end += 1
        result = max(result, end - start)
    }
    return result
}

// Given a string s, find the length of the longest substring without repeating characters.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the given string will in the range of [1, 10^6].
// longestUniqueSubString("abcabcbb") == 3
// longestUniqueSubString("bbbbb") == 1
// longestUniqueSubString("pwwkew") == 3
func longestUniqueSubString(s: String) -> Int {
    var result = 0
    var start = 0
    var end
var heap = Heap<Int>(sort: >) // cannot find 'Heap' in scope
if map[s[end]] != nil { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[start] == s[end] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[start] == s[end] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
map[s[end]] = end // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func maximum(arr: [Int], k: Int) -> [Int] {
    var maxHeap = Heap<Int>(sort: >)
    for i in 0..<k {
        maxHeap.insert(arr[i])
    }
    for i in k..<arr.count {
        if maxHeap.peek() < arr[i] {
            maxHeap.remove()
            maxHeap.insert(arr[i])
        }
    }
    return maxHeap.array
}
```swift
// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the maximum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// maximum(arr: [-3, -4, 5], k: 3) == [-4, -3, 5]
// maximum(arr: [4, -4, 4], k: 2) == [4, 4]
// maximum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [2]
func maximum(arr: [Int], k: Int) -> [Int] {
    var maxHeap = Heap<Int>(sort: >)
    for i in 0..<k {
        maxHeap.insert(arr[i])
    }
    for i in k..<arr.count {
        if maxHeap.peek() < arr[i] {
            maxHeap.remove()
            maxHeap.insert(arr[i])
        }
    }
    return maxHeap.array
}
<|file_separator|>```
var maxHeap = Heap<Int>(sort: >) // cannot find 'Heap' in scope

func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        heap.push(arr[i])
        if heap.count > k {
            heap.pop()
        }
    }
    while !heap.isEmpty {
        result.append(heap.pop())
    }
    return result
}
```swift
// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the maximum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// maximum(arr: [-3, -4, 5], k: 3) == [-4, -3, 5]
// maximum(arr: [4, -4, 4], k: 2) == [4, 4]
// maximum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [2]
func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        heap.push(arr[i])
        if heap.count > k {
            heap.pop()
        }
    }
    while !heap.isEmpty {
        result.append(heap.pop())
    }
    return result
}
<|file_separator|>
var heap = Heap<Int>(sort: >) // cannot find 'Heap' in scope

func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if heap.count > k {
            heap.removeMin()
        }
    }
    while let value = heap.removeMin() {
        result.append(value)
    }
    return result
}

func minimum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: <)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if heap.count > k {
            heap.removeMin()
        }
    }
    while let value = heap.removeMin() {
        result.append(value)
    }
    return result
}
```swift
// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the maximum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// maximum(arr: [-3, -4, 5], k: 3) == [-4, -3, 5]
// maximum(arr: [4, -4, 4], k: 2) == [4, 4]
// maximum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [2]
func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if heap.count > k {
            heap.removeMin()
        }
    }
    while let value = heap.removeMin() {
        result.append(value)
    }
    return result
}

// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the minimum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// minimum(arr: [-3, -4, 5], k: 3) == [-3, -4, 5]
// minimum(arr: [4, -4, 4], k: 2) == [-4, -4]
// minimum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [-1]
func minimum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: <)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if heap.count > k {
            heap.removeMin()
        }
    }
    while let value = heap.removeMin() {
        result.append(value)
    }
    return result
}

// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the maximum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// maximum(arr: [-3, -4, 5], k: 3) == [-4, -3, 5]
// maximum(arr: [4, -4, 4], k: 2) == [4, 4]
// maximum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [2]
func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if heap.count > k {
            heap.removeMin()
        }
    }
    while let value = heap.removeMin() {
        result.append(value)
    }
    return result
}

// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the minimum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// minimum(arr: [-3, -4, 5], k: 3) == [-3, -4, 5]
// minimum(arr: [4, -4, 4], k: 2) == [-4, -4]
// minimum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [-1]
func minimum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: <)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if
var heap = Heap<Int>(sort: >) // cannot find 'Heap' in scope
var heap = Heap<Int>(sort: <) // cannot find 'Heap' in scope

func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if heap.count > k {
            heap.removeMin()
        }
    }
    while !heap.isEmpty {
        result.append(heap.removeMin())
    }
    return result
}

class Heap<T> {
    private var elements = [T]()
    private let sort: (T, T) -> Bool
    
    init(sort: @escaping (T, T) -> Bool) {
        self.sort = sort
    }
    
    var count: Int {
        return elements.count
    }
    
    var isEmpty: Bool {
        return elements.isEmpty
    }
    
    func insert(_ element: T) {
        elements.append(element)
        var index = elements.count - 1
        while index > 0 {
            let parentIndex = (index - 1) / 2
            if sort(elements[index], elements[parentIndex]) {
                elements.swapAt(index, parentIndex)
                index = parentIndex
            } else {
                break
            }
        }
    }
    
    func removeMin() -> T {
        if elements.isEmpty {
            fatalError("Heap is empty")
        }
        let min = elements[0]
        elements[0] = elements.removeLast()
        var index = 0
        while index < elements.count {
            let leftChildIndex = 2 * index + 1
            let rightChildIndex = 2 * index + 2
            if leftChildIndex >= elements.count {
                break
            }
            var minIndex = leftChildIndex
            if rightChildIndex < elements.count && sort(elements[rightChildIndex], elements[leftChildIndex]) {
                minIndex = rightChildIndex
            }
            if sort(elements[minIndex], elements[index]) {
                elements.swapAt(minIndex, index)
                index = minIndex
            } else {
                break
            }
        }
        return min
    }
}
```swift
// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the maximum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// maximum(arr: [-3, -4, 5], k: 3) == [-4, -3, 5]
// maximum(arr: [4, -4, 4], k: 2) == [4, 4]
// maximum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [2]
func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if heap.count > k {
            heap.removeMin()
        }
    }
    while !heap.isEmpty {
        result.append(heap.removeMin())
    }
    return result
}

class Heap<T> {
    private var elements = [T]()
    private let sort: (T, T) -> Bool
    
    init(sort: @escaping (T, T) -> Bool) {
        self.sort = sort
    }
    
    var count: Int {
        return elements.count
    }
    
    var isEmpty: Bool {
        return elements.isEmpty
    }
    
    func insert(_ element: T) {
        elements.append(element)
        var index = elements.count - 1
        while index > 0 {
            let parentIndex = (index - 1) / 2
            if sort(elements[index], elements[parentIndex]) {
                elements.swapAt(index, parentIndex)
                index = parentIndex
            } else {
                break
            }
        }
    }
    
    func removeMin() -> T {
        if elements.isEmpty {
            fatalError("Heap is empty")
        }
        let min = elements[0]
        elements[0] = elements.removeLast()
        var index = 0
        while index < elements.count {
            let leftChildIndex = 2 * index + 1
            let rightChildIndex = 2 * index + 2
            if leftChildIndex >= elements.count {
                break
            }
            var minIndex = leftChildIndex
            if rightChildIndex < elements.count && sort(elements[rightChildIndex], elements[leftChildIndex]) {
                minIndex = rightChildIndex
            }
            if sort(elements[minIndex], elements[index]) {
                elements.swapAt(minIndex, index)
                index = minIndex
            } else {
                break
            }
        }
        return min
    }
}
<|file_separator|>
var heap = Heap<Int>(sort: >) // variable 'heap' was never mutated; consider changing to 'let' constant
heap.removeMin() // result of call to 'removeMin()' is unused
 // Fatal error: Index out of range

func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if heap.count > k {
            heap.remove()
        }
    }
    while heap.count > 0 {
        result.insert(heap.remove(), at: 0)
    }
    return result
}

struct Heap<T> {
    private var heap: [T] = []
    var count: Int {
        return heap.count
    }
    var isEmpty: Bool {
        return heap.isEmpty
    }
    var sort: (T, T) -> Bool
    init(sort: @escaping (T, T) -> Bool) {
        self.sort = sort
    }
    mutating func insert(_ value: T) {
        heap.append(value)
        heapifyUp(heap.count - 1)
    }
    mutating func remove() -> T {
        if heap.isEmpty {
            return heap.removeFirst()
        }
        let result = heap[0]
        heap[0] = heap.removeLast()
        heapifyDown(0)
        return result
    }
    private mutating func heapifyUp(_ index: Int) {
        var index = index
        while index > 0 {
            let parentIndex = (index - 1) / 2
            if sort(heap[parentIndex], heap[index]) {
                heap.swapAt(parentIndex, index)
                index = parentIndex
            } else {
                break
            }
        }
    }
    private mutating func heapifyDown(_ index: Int) {
        var index = index
        while index < heap.count {
            let leftChildIndex = index * 2 + 1
            let rightChildIndex = index * 2 + 2
            var largestChildIndex = index
            if leftChildIndex < heap.count && sort(heap[leftChildIndex], heap[largestChildIndex]) {
                largestChildIndex = leftChildIndex
            }
            if rightChildIndex < heap.count && sort(heap[rightChildIndex], heap[largestChildIndex]) {
                largestChildIndex = rightChildIndex
            }
            if largestChildIndex == index {
                break
            }
            heap.swapAt(index, largestChildIndex)
            index = largestChildIndex
        }
    }
}
```swift
// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the maximum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// maximum(arr: [-3, -4, 5], k: 3) == [-4, -3, 5]
// maximum(arr: [4, -4, 4], k: 2) == [4, 4]
// maximum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [2]
func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<arr.count {
        heap.insert(arr[i])
        if heap.count > k {
            heap.remove()
        }
    }
    while heap.count > 0 {
        result.insert(heap.remove(), at: 0)
    }
    return result
}

// Heap
struct Heap<T> {
    private var heap: [T] = []
    var count: Int {
        return heap.count
    }
    var isEmpty: Bool {
        return heap.isEmpty
    }
    var sort: (T, T) -> Bool
    init(sort: @escaping (T, T) -> Bool) {
        self.sort = sort
    }
    mutating func insert(_ value: T) {
        heap.append(value)
        heapifyUp(heap.count - 1)
    }
    mutating func remove() -> T {
        if heap.isEmpty {
            return heap.removeFirst()
        }
        let result = heap[0]
        heap[0] = heap.removeLast()
        heapifyDown(0)
        return result
    }
    private mutating func heapifyUp(_ index: Int) {
        var index = index
        while index > 0 {
            let parentIndex = (index - 1) / 2
            if sort(heap[parentIndex], heap[index]) {
                heap.swapAt(parentIndex, index)
                index = parentIndex
            } else {
                break
            }
        }
    }
    private mutating func heapifyDown(_ index: Int) {
        var index = index
        while index < heap.count {
            let leftChildIndex = index * 2 + 1
            let rightChildIndex = index * 2 + 2
            var largestChildIndex = index
            if leftChildIndex < heap.count && sort(heap[leftChildIndex], heap[largestChildIndex]) {
                largestChildIndex = leftChildIndex
            }
            if rightChildIndex < heap.count && sort(heap[rightChildIndex], heap[largestChildIndex]) {
                largestChildIndex = rightChildIndex
            }
            if largestChildIndex == index {
                break
            }
            heap.swapAt(index, largestChildIndex)
            index = largestChildIndex
        }
    }
}
<|file_separator|>
heap.remove() // result of call to 'remove()' is unused
 // Fatal error: Index out of range

func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var maxHeap = Heap(arr)
    for i in 0..<k {
        result.append(maxHeap.extractMax())
    }
    return result.reversed()
}

class Heap {
    var arr: [Int]
    var size: Int
    
    init(_ arr: [Int]) {
        self.arr = arr
        self.size = arr.count
        buildHeap()
    }
    
    func buildHeap() {
        for i in (0..<size/2).reversed() {
            heapify(i)
        }
    }
    
    func heapify(_ index: Int) {
        var largest = index
        let left = 2 * index + 1
        let right = 2 * index + 2
        if left < size && arr[left] > arr[largest] {
            largest = left
        }
        if right < size && arr[right] > arr[largest] {
            largest = right
        }
        if largest != index {
            swap(index, largest)
            heapify(largest)
        }
    }
    
    func swap(_ i: Int, _ j: Int) {
        let temp = arr[i]
        arr[i] = arr[j]
        arr[j] = temp
    }
    
    func extractMax() -> Int {
        let max = arr[0]
        arr[0] = arr[size - 1]
        size -= 1
        heapify(0)
        return max
    }
}
```swift
// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the maximum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// maximum(arr: [-3, -4, 5], k: 3) == [-4, -3, 5]
// maximum(arr: [4, -4, 4], k: 2) == [4, 4]
// maximum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [2]
func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var maxHeap = Heap(arr)
    for i in 0..<k {
        result.append(maxHeap.extractMax())
    }
    return result.reversed()
}

class Heap {
    var arr: [Int]
    var size: Int
    
    init(_ arr: [Int]) {
        self.arr = arr
        self.size = arr.count
        buildHeap()
    }
    
    func buildHeap() {
        for i in (0..<size/2).reversed() {
            heapify(i)
        }
    }
    
    func heapify(_ index: Int) {
        var largest = index
        let left = 2 * index + 1
        let right = 2 * index + 2
        if left < size && arr[left] > arr[largest] {
            largest = left
        }
        if right < size && arr[right] > arr[largest] {
            largest = right
        }
        if largest != index {
            swap(index, largest)
            heapify(largest)
        }
    }
    
    func swap(_ i: Int, _ j: Int) {
        let temp = arr[i]
        arr[i] = arr[j]
        arr[j] = temp
    }
    
    func extractMax() -> Int {
        let max = arr[0]
        arr[0] = arr[size - 1]
        size -= 1
        heapify(0)
        return max
    }
}
<|file_separator|>
var maxHeap = Heap(arr) // variable 'maxHeap' was never mutated; consider changing to 'let' constant
for i in 0..<k { // immutable value 'i' was never used; consider replacing with '_' or removing it

func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<k {
        heap.insert(arr[i])
    }
    for i in k..<arr.count {
        if arr[i] > heap.peek()! {
            heap.remove()
            heap.insert(arr[i])
        }
    }
    for i in 0..<k {
        result.append(heap.remove()!)
    }
    return result
}

class Heap<T> {
    private var heap: [T]
    private var sort: (T, T) -> Bool
    
    init(sort: @escaping (T, T) -> Bool) {
        self.sort = sort
        self.heap = []
    }
    
    func insert(_ element: T) {
        heap.append(element)
        var index = heap.count - 1
        while index > 0 {
            let parentIndex = (index - 1) / 2
            if sort(heap[index], heap[parentIndex]) {
                heap.swapAt(index, parentIndex)
                index = parentIndex
            } else {
                break
            }
        }
    }
    
    func remove() -> T? {
        if heap.count == 0 {
            return nil
        }
        let result = heap[0]
        heap[0] = heap[heap.count - 1]
        heap.removeLast()
        var index = 0
        while index < heap.count {
            let leftChildIndex = index * 2 + 1
            let rightChildIndex = index * 2 + 2
            if leftChildIndex >= heap.count {
                break
            }
            var minIndex = leftChildIndex
            if rightChildIndex < heap.count && sort(heap[rightChildIndex], heap[leftChildIndex]) {
                minIndex = rightChildIndex
            }
            if sort(heap[minIndex], heap[index]) {
                heap.swapAt(index, minIndex)
                index = minIndex
            } else {
                break
            }
        }
        return result
    }
    
    func peek() -> T? {
        if heap.count == 0 {
            return nil
        }
        return heap[0]
    }
}
```swift
// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the maximum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// maximum(arr: [-3, -4, 5], k: 3) == [-4, -3, 5]
// maximum(arr: [4, -4, 4], k: 2) == [4, 4]
// maximum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [2]
func maximum(arr: [Int], k: Int) -> [Int] {
    var result = [Int]()
    var heap = Heap<Int>(sort: >)
    for i in 0..<k {
        heap.insert(arr[i])
    }
    for i in k..<arr.count {
        if arr[i] > heap.peek()! {
            heap.remove()
            heap.insert(arr[i])
        }
    }
    for i in 0..<k {
        result.append(heap.remove()!)
    }
    return result
}

class Heap<T> {
    private var heap: [T]
    private var sort: (T, T) -> Bool
    
    init(sort: @escaping (T, T) -> Bool) {
        self.sort = sort
        self.heap = []
    }
    
    func insert(_ element: T) {
        heap.append(element)
        var index = heap.count - 1
        while index > 0 {
            let parentIndex = (index - 1) / 2
            if sort(heap[index], heap[parentIndex]) {
                heap.swapAt(index, parentIndex)
                index = parentIndex
            } else {
                break
            }
        }
    }
    
    func remove() -> T? {
        if heap.count == 0 {
            return nil
        }
        let result = heap[0]
        heap[0] = heap[heap.count - 1]
        heap.removeLast()
        var index = 0
        while index < heap.count {
            let leftChildIndex = index * 2 + 1
            let rightChildIndex = index * 2 + 2
            if leftChildIndex >= heap.count {
                break
            }
            var minIndex = leftChildIndex
            if rightChildIndex < heap.count && sort(heap[rightChildIndex], heap[leftChildIndex]) {
                minIndex = rightChildIndex
            }
            if sort(heap[minIndex], heap[index]) {
                heap.swapAt(index, minIndex)
                index = minIndex
            } else {
                break
            }
        }
        return result
    }
    
    func peek() -> T? {
        if heap.count == 0 {
            return nil
        }
        return heap[0]
    }
}
<|file_separator|>
var heap = Heap<Int>(sort: >) // variable 'heap' was never mutated; consider changing to 'let' constant
heap.remove() // result of call to 'remove()' is unused
for i in 0..<k { // immutable value 'i' was never used; consider replacing with '_' or removing it
 // XCTAssertTrue failed

func maximum(arr: [Int], k: Int) -> [Int] {
    // Write your code here
    var arr = arr
    var k = k
    var result = [Int]()
    
    for _ in 1...k {
        var max = arr[0]
        var index = 0
        for i in 1..<arr.count {
            if arr[i] > max {
                max = arr[i]
                index = i
            }
        }
        result.append(arr[index])
        arr.remove(at: index)
    }
    
    return result
}
```swift
// Given an array arr of integers and a positive integer k, return a sorted array 
// of length k with the maximum k numbers in arr.
// Example 1:
// Example 2:
// Example 3:
// Note:
// 1. The length of the array will be in the range of [1, 1000].
// 2. The elements in the array will be in the range of [-1000, 1000].
// 3. 0 <= k <= len(arr)
// maximum(arr: [-3, -4, 5], k: 3) == [-4, -3, 5]
// maximum(arr: [4, -4, 4], k: 2) == [4, 4]
// maximum(arr: [-3, 2, 1, 2, -1, -2, 1], k: 1) == [2]
func maximum(arr: [Int], k: Int) -> [Int] {
    // Write your code here
    var arr = arr
    var k = k
    var result = [Int]()
    
    for _ in 1...k {
        var max = arr[0]
        var index = 0
        for i in 1..<arr.count {
            if arr[i] > max {
                max = arr[i]
                index = i
            }
        }
        result.append(arr[index])
        arr.remove(at: index)
    }
    
    return result
}<|file_separator|>
var k = k // variable 'k' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 && value % 2 != 0 {
            sum += value
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers, return the sum of all of the odd elements that are in even positions.
// Examples
// solution(lst: [5, 8, 7, 1]) == 12
// solution(lst: [3, 3, 3, 3, 3]) == 9
// solution(lst: [30, 13, 24, 321]) == 0
func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 && value % 2 != 0 {
            sum += value
        }
    }
    return sum
}
<|file_separator|>

func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 && value % 2 == 1 {
            sum += value
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers, return the sum of all of the odd elements that are in even positions.
// Examples
// solution(lst: [5, 8, 7, 1]) == 12
// solution(lst: [3, 3, 3, 3, 3]) == 9
// solution(lst: [30, 13, 24, 321]) == 0
func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 && value % 2 == 1 {
            sum += value
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 && value % 2 == 1 {
            sum += value
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers, return the sum of all of the odd elements that are in even positions.
// Examples
// solution(lst: [5, 8, 7, 1]) == 12
// solution(lst: [3, 3, 3, 3, 3]) == 9
// solution(lst: [30, 13, 24, 321]) == 0
func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 && value % 2 == 1 {
            sum += value
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 && value % 2 == 1 {
            sum += value
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers, return the sum of all of the odd elements that are in even positions.
// Examples
// solution(lst: [5, 8, 7, 1]) == 12
// solution(lst: [3, 3, 3, 3, 3]) == 9
// solution(lst: [30, 13, 24, 321]) == 0
func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 && value % 2 == 1 {
            sum += value
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 && value % 2 == 1 {
            sum += value
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers, return the sum of all of the odd elements that are in even positions.
// Examples
// solution(lst: [5, 8, 7, 1]) == 12
// solution(lst: [3, 3, 3, 3, 3]) == 9
// solution(lst: [30, 13, 24, 321]) == 0
func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 && value % 2 == 1 {
            sum += value
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 && value % 2 == 1 {
            sum += value
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers, return the sum of all of the odd elements that are in even positions.
// Examples
// solution(lst: [5, 8, 7, 1]) == 12
// solution(lst: [3, 3, 3, 3, 3]) == 9
// solution(lst: [30, 13, 24, 321]) == 0
func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 1 && value % 2 == 1 {
            sum += value
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func solution(lst: [Int]) -> Int {
  var sum = 0
  for i in 0..<lst.count {
    if i % 2 == 1 {
      sum += lst[i]
    }
  }
  return sum
}
```swift
// Given a non-empty array of integers, return the sum of all of the odd elements that are in even positions.
// Examples
// solution(lst: [5, 8, 7, 1]) == 12
// solution(lst: [3, 3, 3, 3, 3]) == 9
// solution(lst: [30, 13, 24, 321]) == 0
func solution(lst: [Int]) -> Int {
  var sum = 0
  for i in 0..<lst.count {
    if i % 2 == 1 {
      sum += lst[i]
    }
  }
  return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func solution(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers, return the sum of all of the odd elements that are in even positions.
// Examples
// solution(lst: [5, 8, 7, 1]) == 12
// solution(lst: [3, 3, 3, 3, 3]) == 9
// solution(lst: [30, 13, 24, 321]) == 0
func solution(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if i % 2 == 0 {
            sum += lst[i]
        }
    }
    return sum
}
<|file_separator|>```
 // XCTAssertTrue failed

func solution(lst: [Int]) -> Int {
  var sum = 0
  for i in 0..<lst.count {
    if i % 2 == 0 {
      sum += lst[i]
    }
  }
  return sum
}
```swift
// Given a non-empty array of integers, return the sum of all of the odd elements that are in even positions.
// Examples
// solution(lst: [5, 8, 7, 1]) == 12
// solution(lst: [3, 3, 3, 3, 3]) == 9
// solution(lst: [30, 13, 24, 321]) == 0
func solution(lst: [Int]) -> Int {
  var sum = 0
  for i in 0..<lst.count {
    if i % 2 == 0 {
      sum += lst[i]
    }
  }
  return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers, return the sum of all of the odd elements that are in even positions.
// Examples
// solution(lst: [5, 8, 7, 1]) == 12
// solution(lst: [3, 3, 3, 3, 3]) == 9
// solution(lst: [30, 13, 24, 321]) == 0
func solution(lst: [Int]) -> Int {
    var sum = 0
    for (index, value) in lst.enumerated() {
        if index % 2 == 0 {
            sum += value
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var count = 0
    for i in 0..<k {
        if arr[i] < 100 {
            sum += arr[i]
            count += 1
        }
    }
    return sum
}

func addElements(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        for j in i+1..<arr.count {
            if arr[i] != arr[j] {
                count += 1
            }
        }
    }
    return count
}
```swift
// Given a non-empty array of integers arr and an integer k, return
// the sum of the elements with at most two digits from the first k elements of arr.
// Example:
// Constraints:
// 1. 1 <= len(arr) <= 100
// 2. 1 <= k <= len(arr)
// addElements(arr: [111, 21, 3, 4000, 5, 6, 7, 8, 9], k: 4) == 24
func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var count = 0
    for i in 0..<k {
        if arr[i] < 100 {
            sum += arr[i]
            count += 1
        }
    }
    return sum
}

// Given an array of integers arr, return the number of elements that have at least two different values.
// Constraints:
// 1. 1 <= len(arr) <= 100
// Example:
// addElements(arr: [1, 2, 3, 4, 5, 6, 7, 8, 9]) == 4
func addElements(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        for j in i+1..<arr.count {
            if arr[i] != arr[j] {
                count += 1
            }
        }
    }
    return count
}

// Given an array of integers arr, return the number of elements that have at least two different values.
// Constraints:
// 1. 1 <= len(arr) <= 100
// Example:
// addElements(arr: [1, 2, 3, 4, 5, 6, 7, 8, 9]) == 4
func addElements(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        for j in i+1..<arr.count {
            if arr[i] != arr[j] {
                count += 1
            }
        }
    }
    return count
}

// Given an array of integers arr, return the number of elements that have at least two different values.
// Constraints:
// 1. 1 <= len(arr) <= 100
// Example:
// addElements(arr: [1, 2, 3, 4, 5, 6, 7, 8, 9]) == 4
func addElements(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        for j in i+1..<arr.count {
            if arr[i] != arr[j] {
                count += 1
            }
        }
    }
    return count
}

// Given an array of integers arr, return the number of elements that have at least two different values.
// Constraints:
// 1. 1 <= len(arr) <= 100
// Example:
// addElements(arr: [1, 2, 3, 4, 5, 6, 7, 8, 9]) == 4
func addElements(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        for j in i+1..<arr.count {
            if arr[i] != arr[j] {
                count += 1
            }
        }
    }
    return count
}

// Given an array of integers arr, return the number of elements that have at least two different values.
// Constraints:
// 1. 1 <= len(arr) <= 100
// Example:
// addElements(arr: [1, 2, 3, 4, 5, 6, 7, 8, 9]) == 4
func addElements(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        for j in i+1..<arr.count {
            if arr[i] != arr[j] {
                count += 1
            }
        }
    }
    return count
}

// Given an array of integers arr, return the number of elements that have at least two different values.
// Constraints:
// 1. 1 <= len(arr) <= 100
// Example:
// addElements(arr: [1, 2, 3, 4, 5, 6, 7, 8, 9]) == 4
func addElements(arr: [Int]) -> Int {
    var count = 0
    for i in 0..<arr.count {
        for j in i+1..<arr.count {
            if arr[i] != arr[j] {
                count +=

func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    var k = k
    while k > 0 {
        let max = arr.max()
        let min = arr.min()
        if max! > 9 {
            sum += max!
            arr.remove(at: arr.firstIndex(of: max!)!)
        } else if min! > 9 {
            sum += min!
            arr.remove(at: arr.firstIndex(of: min!)!)
        } else {
            sum += max! + min!
            arr.remove(at: arr.firstIndex(of: max!)!)
            arr.remove(at: arr.firstIndex(of: min!)!)
        }
        k -= 1
    }
    return sum
}
```swift
// Given a non-empty array of integers arr and an integer k, return
// the sum of the elements with at most two digits from the first k elements of arr.
// Example:
// Constraints:
// 1. 1 <= len(arr) <= 100
// 2. 1 <= k <= len(arr)
// addElements(arr: [111, 21, 3, 4000, 5, 6, 7, 8, 9], k: 4) == 24
func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    var k = k
    while k > 0 {
        let max = arr.max()
        let min = arr.min()
        if max! > 9 {
            sum += max!
            arr.remove(at: arr.firstIndex(of: max!)!)
        } else if min! > 9 {
            sum += min!
            arr.remove(at: arr.firstIndex(of: min!)!)
        } else {
            sum += max! + min!
            arr.remove(at: arr.firstIndex(of: max!)!)
            arr.remove(at: arr.firstIndex(of: min!)!)
        }
        k -= 1
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    for i in 0..<k {
        if arr[i] < 100 {
            sum += arr[i]
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers arr and an integer k, return
// the sum of the elements with at most two digits from the first k elements of arr.
// Example:
// Constraints:
// 1. 1 <= len(arr) <= 100
// 2. 1 <= k <= len(arr)
// addElements(arr: [111, 21, 3, 4000, 5, 6, 7, 8, 9], k: 4) == 24
func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    for i in 0..<k {
        if arr[i] < 100 {
            sum += arr[i]
        }
    }
    return sum
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant

func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    for i in 0..<k {
        sum += arr[i]
    }
    return sum
}
```swift
// Given a non-empty array of integers arr and an integer k, return
// the sum of the elements with at most two digits from the first k elements of arr.
// Example:
// Constraints:
// 1. 1 <= len(arr) <= 100
// 2. 1 <= k <= len(arr)
// addElements(arr: [111, 21, 3, 4000, 5, 6, 7, 8, 9], k: 4) == 24
func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    for i in 0..<k {
        sum += arr[i]
    }
    return sum
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    var k = k
    while k > 0 {
        let max = arr.max()
        sum += max!
        arr.remove(at: arr.index(of: max!)!)
        k -= 1
    }
    return sum
}
```swift
// Given a non-empty array of integers arr and an integer k, return
// the sum of the elements with at most two digits from the first k elements of arr.
// Example:
// Constraints:
// 1. 1 <= len(arr) <= 100
// 2. 1 <= k <= len(arr)
// addElements(arr: [111, 21, 3, 4000, 5, 6, 7, 8, 9], k: 4) == 24
func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    var k = k
    while k > 0 {
        let max = arr.max()
        sum += max!
        arr.remove(at: arr.index(of: max!)!)
        k -= 1
    }
    return sum
}
<|file_separator|>
arr.remove(at: arr.index(of: max!)!) // 'index(of:)' is deprecated: renamed to 'firstIndex(of:)'
 // XCTAssertTrue failed

func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    var k = k
    while k > 0 {
        sum += arr.first!
        arr.removeFirst()
        k -= 1
    }
    return sum
}
```swift
// Given a non-empty array of integers arr and an integer k, return
// the sum of the elements with at most two digits from the first k elements of arr.
// Example:
// Constraints:
// 1. 1 <= len(arr) <= 100
// 2. 1 <= k <= len(arr)
// addElements(arr: [111, 21, 3, 4000, 5, 6, 7, 8, 9], k: 4) == 24
func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    var k = k
    while k > 0 {
        sum += arr.first!
        arr.removeFirst()
        k -= 1
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    for i in 0..<k {
        let num = arr[i]
        if num < 10 {
            sum += num
        } else {
            sum += num % 10
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers arr and an integer k, return
// the sum of the elements with at most two digits from the first k elements of arr.
// Example:
// Constraints:
// 1. 1 <= len(arr) <= 100
// 2. 1 <= k <= len(arr)
// addElements(arr: [111, 21, 3, 4000, 5, 6, 7, 8, 9], k: 4) == 24
func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    for i in 0..<k {
        let num = arr[i]
        if num < 10 {
            sum += num
        } else {
            sum += num % 10
        }
    }
    return sum
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    var k = k
    while k > 0 {
        sum += arr.first!
        arr.removeFirst()
        k -= 1
    }
    return sum
}
```swift
// Given a non-empty array of integers arr and an integer k, return
// the sum of the elements with at most two digits from the first k elements of arr.
// Example:
// Constraints:
// 1. 1 <= len(arr) <= 100
// 2. 1 <= k <= len(arr)
// addElements(arr: [111, 21, 3, 4000, 5, 6, 7, 8, 9], k: 4) == 24
func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    var k = k
    while k > 0 {
        sum += arr.first!
        arr.removeFirst()
        k -= 1
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    for i in 0..<k {
        if arr[i] < 100 {
            sum += arr[i]
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers arr and an integer k, return
// the sum of the elements with at most two digits from the first k elements of arr.
// Example:
// Constraints:
// 1. 1 <= len(arr) <= 100
// 2. 1 <= k <= len(arr)
// addElements(arr: [111, 21, 3, 4000, 5, 6, 7, 8, 9], k: 4) == 24
func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var arr = arr
    for i in 0..<k {
        if arr[i] < 100 {
            sum += arr[i]
        }
    }
    return sum
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant

func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var count = 0
    for i in 0..<k {
        if arr[i] < 100 {
            sum += arr[i]
            count += 1
        }
    }
    return sum
}
```swift
// Given a non-empty array of integers arr and an integer k, return
// the sum of the elements with at most two digits from the first k elements of arr.
// Example:
// Constraints:
// 1. 1 <= len(arr) <= 100
// 2. 1 <= k <= len(arr)
// addElements(arr: [111, 21, 3, 4000, 5, 6, 7, 8, 9], k: 4) == 24
func addElements(arr: [Int], k: Int) -> Int {
    var sum = 0
    var count = 0
    for i in 0..<k {
        if arr[i] < 100 {
            sum += arr[i]
            count += 1
        }
    }
    return sum
}
<|file_separator|>

func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num /= 2
        } else {
            num = 3 * num + 1
        }
        result.append(num)
    }
    return result.filter { $0 % 2 == 1 }
}
```swift
// Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_odd_collatz(5) returns [1, 5] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the odd numbers are only 1, and 5.
// getOddCollatz(n: 5) == [1, 5]
func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num /= 2
        } else {
            num = 3 * num + 1
        }
        result.append(num)
    }
    return result.filter { $0 % 2 == 1 }
}
<|file_separator|>
 // XCTAssertTrue failed

func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num > 1 {
        result.append(num)
        if num % 2 == 0 {
            num /= 2
        } else {
            num = 3 * num + 1
        }
    }
    result.append(1)
    return result
}
```swift
// Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_odd_collatz(5) returns [1, 5] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the odd numbers are only 1, and 5.
// getOddCollatz(n: 5) == [1, 5]
func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num > 1 {
        result.append(num)
        if num % 2 == 0 {
            num /= 2
        } else {
            num = 3 * num + 1
        }
    }
    result.append(1)
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num /= 2
        } else {
            num = num * 3 + 1
        }
        result.append(num)
    }
    return result
}
```swift
// Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_odd_collatz(5) returns [1, 5] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the odd numbers are only 1, and 5.
// getOddCollatz(n: 5) == [1, 5]
func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num /= 2
        } else {
            num = num * 3 + 1
        }
        result.append(num)
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num > 1 {
        result.append(num)
        if num % 2 == 0 {
            num = num / 2
        } else {
            num = (num * 3) + 1
        }
    }
    result.append(1)
    return result.filter { $0 % 2 != 0 }.sorted()
}
```swift
// Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_odd_collatz(5) returns [1, 5] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the odd numbers are only 1, and 5.
// getOddCollatz(n: 5) == [1, 5]
func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num > 1 {
        result.append(num)
        if num % 2 == 0 {
            num = num / 2
        } else {
            num = (num * 3) + 1
        }
    }
    result.append(1)
    return result.filter { $0 % 2 != 0 }.sorted()
}
<|file_separator|>

func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var current = n
    while current != 1 {
        if current % 2 == 0 {
            current /= 2
        } else {
            current = (3 * current) + 1
        }
        result.append(current)
    }
    return result
}
```swift
// Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_odd_collatz(5) returns [1, 5] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the odd numbers are only 1, and 5.
// getOddCollatz(n: 5) == [1, 5]
func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var current = n
    while current != 1 {
        if current % 2 == 0 {
            current /= 2
        } else {
            current = (3 * current) + 1
        }
        result.append(current)
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var current = n
    while current != 1 {
        result.append(current)
        if current % 2 == 0 {
            current /= 2
        } else {
            current = current * 3 + 1
        }
    }
    result.append(1)
    return result
}
```swift
// Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_odd_collatz(5) returns [1, 5] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the odd numbers are only 1, and 5.
// getOddCollatz(n: 5) == [1, 5]
func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var current = n
    while current != 1 {
        result.append(current)
        if current % 2 == 0 {
            current /= 2
        } else {
            current = current * 3 + 1
        }
    }
    result.append(1)
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num /= 2
        } else {
            num = (num * 3) + 1
        }
        result.append(num)
    }
    return result
}
```swift
// Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_odd_collatz(5) returns [1, 5] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the odd numbers are only 1, and 5.
// getOddCollatz(n: 5) == [1, 5]
func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num /= 2
        } else {
            num = (num * 3) + 1
        }
        result.append(num)
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num = num / 2
        } else {
            num = (num * 3) + 1
        }
        result.append(num)
    }
    return result
}

func getEvenCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num = num / 2
        } else {
            num = (num * 3) + 1
        }
        result.append(num)
    }
    return result
}
```swift
// Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_odd_collatz(5) returns [1, 5] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the odd numbers are only 1, and 5.
// getOddCollatz(n: 5) == [1, 5]
func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num = num / 2
        } else {
            num = (num * 3) + 1
        }
        result.append(num)
    }
    return result
}

// Given a positive integer n, return a sorted array that has the even numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_even_collatz(5) returns [2, 4] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the even numbers are only 2, and 4.
// getEvenCollatz(n: 5) == [2, 4]
func getEvenCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num = num / 2
        } else {
            num = (num * 3) + 1
        }
        result.append(num)
    }
    return result
}

// Given a positive integer n, return a sorted array that has the even numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_even_collatz(5) returns [2, 4] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the even numbers are only 2, and 4.
// getEvenCollatz(n: 5) == [2, 4]
func getEvenCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num = num / 2
        } else {
            num = (num * 3) + 1
        }
        result.append(num)
    }
    return result
}

// Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_odd_collatz(5) returns [1, 5] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the odd numbers are only 1, and 5.
// getOddCollatz(n: 5) == [1, 5]
func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num =
 // XCTAssertTrue failed

func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num /= 2
        } else {
            num = (num * 3) + 1
        }
        result.append(num)
    }
    return result
}
```swift
// Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_odd_collatz(5) returns [1, 5] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the odd numbers are only 1, and 5.
// getOddCollatz(n: 5) == [1, 5]
func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var num = n
    while num != 1 {
        if num % 2 == 0 {
            num /= 2
        } else {
            num = (num * 3) + 1
        }
        result.append(num)
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var current = n
    while current != 1 {
        if current % 2 == 0 {
            current = current / 2
        } else {
            current = current * 3 + 1
        }
        result.append(current)
    }
    return result
}
```swift
// Given a positive integer n, return a sorted array that has the odd numbers in collatz sequence.
// The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined
// as follows: start with any positive integer n. Then each term is obtained from the 
// previous term as follows: if the previous term is even, the next term is one half of 
// the previous term. If the previous term is odd, the next term is 3 times the previous
// term plus 1. The conjecture is that no matter what value of n, the sequence will always reach 1.
// Note: 
// 1. Collatz(1) is [1].
// 2. returned array sorted in increasing order.
// For example:
// get_odd_collatz(5) returns [1, 5] # The collatz sequence for 5 is [5, 16, 8, 4, 2, 1], so the odd numbers are only 1, and 5.
// getOddCollatz(n: 5) == [1, 5]
func getOddCollatz(n: Int) -> [Int] {
    var result = [Int]()
    var current = n
    while current != 1 {
        if current % 2 == 0 {
            current = current / 2
        } else {
            current = current * 3 + 1
        }
        result.append(current)
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    dateFormatter.locale = Locale(identifier: "en_US_POSIX")
    let date = dateFormatter.date(from: date)
    let calendar = Calendar.current
    let components = calendar.dateComponents([.year, .month, .day], from: date!)
    let year = components.year
    let month = components.month
    let day = components.day
    if date == nil {
        return false
    }
    if year! < 1 || year! > 31 {
        return false
    }
    if month! < 1 || month! > 12 {
        return false
    }
    if day! < 1 || day! > 31 {
        return false
    }
    return true
}
```swift
// You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// The date is valid if all of the following rules are satisfied:
// 1. The date string is not empty.
// 2. The number of days is not less than 1 or higher than 31 days for months 1,3,5,7,8,10,12. And the number of days is not less than 1 or higher than 30 days for months 4,6,9,11. And, the number of days is not less than 1 or higher than 29 for the month 2.
// 3. The months should not be less than 1 or higher than 12.
// 4. The date should be in the format: mm-dd-yyyy
// validDate(date: "03-11-2000") == true
// validDate(date: "15-01-2012") == false
// validDate(date: "04-0-2040") == false
// validDate(date: "06-04-2020") == true
// validDate(date: "06/04/2020") == false
func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    dateFormatter.locale = Locale(identifier: "en_US_POSIX")
    let date = dateFormatter.date(from: date)
    let calendar = Calendar.current
    let components = calendar.dateComponents([.year, .month, .day], from: date!)
    let year = components.year
    let month = components.month
    let day = components.day
    if date == nil {
        return false
    }
    if year! < 1 || year! > 31 {
        return false
    }
    if month! < 1 || month! > 12 {
        return false
    }
    if day! < 1 || day! > 31 {
        return false
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    let date = dateFormatter.date(from: date)
    if date == nil {
        return false
    }
    let calendar = Calendar.current
    let components = calendar.dateComponents([.day, .month, .year], from: date!)
    let day = components.day
    let month = components.month
    let year = components.year
    if day! < 1 || day! > 31 {
        return false
    }
    if month! < 1 || month! > 12 {
        return false
    }
    if month! == 1 || month! == 3 || month! == 5 || month! == 7 || month! == 8 || month! == 10 || month! == 12 {
        if day! < 1 || day! > 31 {
            return false
        }
    }
    if month! == 4 || month! == 6 || month! == 9 || month! == 11 {
        if day! < 1 || day! > 30 {
            return false
        }
    }
    if month! == 2 {
        if day! < 1 || day! > 29 {
            return false
        }
    }
    return true
}
```swift
// You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// The date is valid if all of the following rules are satisfied:
// 1. The date string is not empty.
// 2. The number of days is not less than 1 or higher than 31 days for months 1,3,5,7,8,10,12. And the number of days is not less than 1 or higher than 30 days for months 4,6,9,11. And, the number of days is not less than 1 or higher than 29 for the month 2.
// 3. The months should not be less than 1 or higher than 12.
// 4. The date should be in the format: mm-dd-yyyy
// validDate(date: "03-11-2000") == true
// validDate(date: "15-01-2012") == false
// validDate(date: "04-0-2040") == false
// validDate(date: "06-04-2020") == true
// validDate(date: "06/04/2020") == false
func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    let date = dateFormatter.date(from: date)
    if date == nil {
        return false
    }
    let calendar = Calendar.current
    let components = calendar.dateComponents([.day, .month, .year], from: date!)
    let day = components.day
    let month = components.month
    let year = components.year
    if day! < 1 || day! > 31 {
        return false
    }
    if month! < 1 || month! > 12 {
        return false
    }
    if month! == 1 || month! == 3 || month! == 5 || month! == 7 || month! == 8 || month! == 10 || month! == 12 {
        if day! < 1 || day! > 31 {
            return false
        }
    }
    if month! == 4 || month! == 6 || month! == 9 || month! == 11 {
        if day! < 1 || day! > 30 {
            return false
        }
    }
    if month! == 2 {
        if day! < 1 || day! > 29 {
            return false
        }
    }
    return true
}
<|file_separator|>
let year = components.year // initialization of immutable value 'year' was never used; consider replacing with assignment to '_' or removing it

func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    if let date = dateFormatter.date(from: date) {
        let calendar = Calendar.current
        let components = calendar.dateComponents([.year, .month, .day], from: date)
        if let year = components.year, let month = components.month, let day = components.day {
            if month == 2 {
                if year % 4 == 0 {
                    if day > 29 {
                        return false
                    }
                } else {
                    if day > 28 {
                        return false
                    }
                }
            } else if month == 4 || month == 6 || month == 9 || month == 11 {
                if day > 30 {
                    return false
                }
            } else if day > 31 {
                return false
            }
        } else {
            return false
        }
    } else {
        return false
    }
    return true
}
```swift
// You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// The date is valid if all of the following rules are satisfied:
// 1. The date string is not empty.
// 2. The number of days is not less than 1 or higher than 31 days for months 1,3,5,7,8,10,12. And the number of days is not less than 1 or higher than 30 days for months 4,6,9,11. And, the number of days is not less than 1 or higher than 29 for the month 2.
// 3. The months should not be less than 1 or higher than 12.
// 4. The date should be in the format: mm-dd-yyyy
// validDate(date: "03-11-2000") == true
// validDate(date: "15-01-2012") == false
// validDate(date: "04-0-2040") == false
// validDate(date: "06-04-2020") == true
// validDate(date: "06/04/2020") == false
func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    if let date = dateFormatter.date(from: date) {
        let calendar = Calendar.current
        let components = calendar.dateComponents([.year, .month, .day], from: date)
        if let year = components.year, let month = components.month, let day = components.day {
            if month == 2 {
                if year % 4 == 0 {
                    if day > 29 {
                        return false
                    }
                } else {
                    if day > 28 {
                        return false
                    }
                }
            } else if month == 4 || month == 6 || month == 9 || month == 11 {
                if day > 30 {
                    return false
                }
            } else if day > 31 {
                return false
            }
        } else {
            return false
        }
    } else {
        return false
    }
    return true
}
<|file_separator|>

func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    if let _ = dateFormatter.date(from: date) {
        return true
    }
    return false
}
```swift
// You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// The date is valid if all of the following rules are satisfied:
// 1. The date string is not empty.
// 2. The number of days is not less than 1 or higher than 31 days for months 1,3,5,7,8,10,12. And the number of days is not less than 1 or higher than 30 days for months 4,6,9,11. And, the number of days is not less than 1 or higher than 29 for the month 2.
// 3. The months should not be less than 1 or higher than 12.
// 4. The date should be in the format: mm-dd-yyyy
// validDate(date: "03-11-2000") == true
// validDate(date: "15-01-2012") == false
// validDate(date: "04-0-2040") == false
// validDate(date: "06-04-2020") == true
// validDate(date: "06/04/2020") == false
func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    if let _ = dateFormatter.date(from: date) {
        return true
    }
    return false
}
<|file_separator|>

func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    dateFormatter.locale = Locale(identifier: "en_US_POSIX")
    if let _ = dateFormatter.date(from: date) {
        return true
    } else {
        return false
    }
}
```swift
// You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// The date is valid if all of the following rules are satisfied:
// 1. The date string is not empty.
// 2. The number of days is not less than 1 or higher than 31 days for months 1,3,5,7,8,10,12. And the number of days is not less than 1 or higher than 30 days for months 4,6,9,11. And, the number of days is not less than 1 or higher than 29 for the month 2.
// 3. The months should not be less than 1 or higher than 12.
// 4. The date should be in the format: mm-dd-yyyy
// validDate(date: "03-11-2000") == true
// validDate(date: "15-01-2012") == false
// validDate(date: "04-0-2040") == false
// validDate(date: "06-04-2020") == true
// validDate(date: "06/04/2020") == false
func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    dateFormatter.locale = Locale(identifier: "en_US_POSIX")
    if let _ = dateFormatter.date(from: date) {
        return true
    } else {
        return false
    }
}
<|file_separator|>

func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    if let _ = dateFormatter.date(from: date) {
        return true
    }
    return false
}
```swift
// You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// The date is valid if all of the following rules are satisfied:
// 1. The date string is not empty.
// 2. The number of days is not less than 1 or higher than 31 days for months 1,3,5,7,8,10,12. And the number of days is not less than 1 or higher than 30 days for months 4,6,9,11. And, the number of days is not less than 1 or higher than 29 for the month 2.
// 3. The months should not be less than 1 or higher than 12.
// 4. The date should be in the format: mm-dd-yyyy
// validDate(date: "03-11-2000") == true
// validDate(date: "15-01-2012") == false
// validDate(date: "04-0-2040") == false
// validDate(date: "06-04-2020") == true
// validDate(date: "06/04/2020") == false
func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    if let _ = dateFormatter.date(from: date) {
        return true
    }
    return false
}
<|file_separator|>

func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    dateFormatter.locale = Locale(identifier: "en_US_POSIX")
    let date = dateFormatter.date(from: date)
    if date != nil {
        return true
    } else {
        return false
    }
}
```swift
// You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// The date is valid if all of the following rules are satisfied:
// 1. The date string is not empty.
// 2. The number of days is not less than 1 or higher than 31 days for months 1,3,5,7,8,10,12. And the number of days is not less than 1 or higher than 30 days for months 4,6,9,11. And, the number of days is not less than 1 or higher than 29 for the month 2.
// 3. The months should not be less than 1 or higher than 12.
// 4. The date should be in the format: mm-dd-yyyy
// validDate(date: "03-11-2000") == true
// validDate(date: "15-01-2012") == false
// validDate(date: "04-0-2040") == false
// validDate(date: "06-04-2020") == true
// validDate(date: "06/04/2020") == false
func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    dateFormatter.locale = Locale(identifier: "en_US_POSIX")
    let date = dateFormatter.date(from: date)
    if date != nil {
        return true
    } else {
        return false
    }
}
<|file_separator|>

func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    let date = dateFormatter.date(from: date)
    if date == nil {
        return false
    }
    let calendar = Calendar.current
    let components = calendar.dateComponents([.day, .month, .year], from: date!)
    if components.day! < 1 || components.day! > 31 {
        return false
    }
    if components.month! < 1 || components.month! > 12 {
        return false
    }
    if components.month! == 1 || components.month! == 3 || components.month! == 5 || components.month! == 7 || components.month! == 8 || components.month! == 10 || components.month! == 12 {
        if components.day! < 1 || components.day! > 31 {
            return false
        }
    }
    if components.month! == 4 || components.month! == 6 || components.month! == 9 || components.month! == 11 {
        if components.day! < 1 || components.day! > 30 {
            return false
        }
    }
    if components.month! == 2 {
        if components.day! < 1 || components.day! > 29 {
            return false
        }
    }
    return true
}
```swift
// You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// The date is valid if all of the following rules are satisfied:
// 1. The date string is not empty.
// 2. The number of days is not less than 1 or higher than 31 days for months 1,3,5,7,8,10,12. And the number of days is not less than 1 or higher than 30 days for months 4,6,9,11. And, the number of days is not less than 1 or higher than 29 for the month 2.
// 3. The months should not be less than 1 or higher than 12.
// 4. The date should be in the format: mm-dd-yyyy
// validDate(date: "03-11-2000") == true
// validDate(date: "15-01-2012") == false
// validDate(date: "04-0-2040") == false
// validDate(date: "06-04-2020") == true
// validDate(date: "06/04/2020") == false
func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    let date = dateFormatter.date(from: date)
    if date == nil {
        return false
    }
    let calendar = Calendar.current
    let components = calendar.dateComponents([.day, .month, .year], from: date!)
    if components.day! < 1 || components.day! > 31 {
        return false
    }
    if components.month! < 1 || components.month! > 12 {
        return false
    }
    if components.month! == 1 || components.month! == 3 || components.month! == 5 || components.month! == 7 || components.month! == 8 || components.month! == 10 || components.month! == 12 {
        if components.day! < 1 || components.day! > 31 {
            return false
        }
    }
    if components.month! == 4 || components.month! == 6 || components.month! == 9 || components.month! == 11 {
        if components.day! < 1 || components.day! > 30 {
            return false
        }
    }
    if components.month! == 2 {
        if components.day! < 1 || components.day! > 29 {
            return false
        }
    }
    return true
}
<|file_separator|>

func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    dateFormatter.locale = Locale(identifier: "en_US_POSIX")
    if date.isEmpty {
        return false
    }
    if let date = dateFormatter.date(from: date) {
        let calendar = Calendar.current
        let components = calendar.dateComponents([.year, .month, .day], from: date)
        if let year = components.year, let month = components.month, let day = components.day {
            if month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12 {
                if day < 1 || day > 31 {
                    return false
                }
            } else if month == 4 || month == 6 || month == 9 || month == 11 {
                if day < 1 || day > 30 {
                    return false
                }
            } else if month == 2 {
                if day < 1 || day > 29 {
                    return false
                }
            } else {
                return false
            }
            if year < 1 || year > 2022 {
                return false
            }
            return true
        }
    }
    return false
}
```swift
// You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// The date is valid if all of the following rules are satisfied:
// 1. The date string is not empty.
// 2. The number of days is not less than 1 or higher than 31 days for months 1,3,5,7,8,10,12. And the number of days is not less than 1 or higher than 30 days for months 4,6,9,11. And, the number of days is not less than 1 or higher than 29 for the month 2.
// 3. The months should not be less than 1 or higher than 12.
// 4. The date should be in the format: mm-dd-yyyy
// validDate(date: "03-11-2000") == true
// validDate(date: "15-01-2012") == false
// validDate(date: "04-0-2040") == false
// validDate(date: "06-04-2020") == true
// validDate(date: "06/04/2020") == false
func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    dateFormatter.locale = Locale(identifier: "en_US_POSIX")
    if date.isEmpty {
        return false
    }
    if let date = dateFormatter.date(from: date) {
        let calendar = Calendar.current
        let components = calendar.dateComponents([.year, .month, .day], from: date)
        if let year = components.year, let month = components.month, let day = components.day {
            if month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12 {
                if day < 1 || day > 31 {
                    return false
                }
            } else if month == 4 || month == 6 || month == 9 || month == 11 {
                if day < 1 || day > 30 {
                    return false
                }
            } else if month == 2 {
                if day < 1 || day > 29 {
                    return false
                }
            } else {
                return false
            }
            if year < 1 || year > 2022 {
                return false
            }
            return true
        }
    }
    return false
}
<|file_separator|>

func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    dateFormatter.locale = Locale(identifier: "en_US")
    if dateFormatter.date(from: date) != nil {
        return true
    }
    return false
}
```swift
// You have to write a function which validates a given date string and
// returns true if the date is valid otherwise false.
// The date is valid if all of the following rules are satisfied:
// 1. The date string is not empty.
// 2. The number of days is not less than 1 or higher than 31 days for months 1,3,5,7,8,10,12. And the number of days is not less than 1 or higher than 30 days for months 4,6,9,11. And, the number of days is not less than 1 or higher than 29 for the month 2.
// 3. The months should not be less than 1 or higher than 12.
// 4. The date should be in the format: mm-dd-yyyy
// validDate(date: "03-11-2000") == true
// validDate(date: "15-01-2012") == false
// validDate(date: "04-0-2040") == false
// validDate(date: "06-04-2020") == true
// validDate(date: "06/04/2020") == false
func validDate(date: String) -> Bool {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "MM-dd-yyyy"
    dateFormatter.locale = Locale(identifier: "en_US")
    if dateFormatter.date(from: date) != nil {
        return true
    }
    return false
}
<|file_separator|>

extension Int: Error {

}

extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var odd = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word)
        } else {
            odd += 1
        }
    }
    return .success(result)
}

func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var odd = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word)
        } else {
            odd += 1
        }
    }
    return .success(result)
}
```swift
extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var odd = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word)
        } else {
            odd += 1
        }
    }
    return .success(result)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var odd = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word)
        } else {
            odd += 1
        }
    }
    return .success(result)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var odd = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word)
        } else {
            odd += 1
        }
    }
    return .success(result)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var odd = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word)
        } else {
            odd += 1
        }
    }
    return .success(result)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String)
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
result.append(word) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'
func splitWords(txt: String) -> Result<[String], Int> { // invalid redeclaration of 'splitWords(txt:)'
result.append(word) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'

extension Int: Error {

}

extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    var words = txt.split(separator: " ").map { String($0) }
    var count = 0
    for i in 0..<words.count {
        if words[i].contains(" ") {
            return .failure(count)
        }
        if words[i].contains(",") {
            words[i] = words[i].replacingOccurrences(of: ",", with: "")
        }
    }
    for i in 0..<words.count {
        if words[i].lowercased().firstIndex(of: "a")!.utf16Offset(in: words[i]) % 2 != 0 {
            count += 1
        }
    }
    return .success(words)
}

func splitWords(txt: String) -> Result<[String], Int> {
    var words = txt.split(separator: " ").map { String($0) }
    var count = 0
    for i in 0..<words.count {
        if words[i].contains(" ") {
            return .failure(count)
        }
        if words[i].contains(",") {
            words[i] = words[i].replacingOccurrences(of: ",", with: "")
        }
    }
    for i in 0..<words.count {
        if words[i].lowercased().firstIndex(of: "a")!.utf16Offset(in: words[i]) % 2 != 0 {
            count += 1
        }
    }
    return .success(words)
}
```swift
extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    var words = txt.split(separator: " ").map { String($0) }
    var count = 0
    for i in 0..<words.count {
        if words[i].contains(" ") {
            return .failure(count)
        }
        if words[i].contains(",") {
            words[i] = words[i].replacingOccurrences(of: ",", with: "")
        }
    }
    for i in 0..<words.count {
        if words[i].lowercased().firstIndex(of: "a")!.utf16Offset(in: words[i]) % 2 != 0 {
            count += 1
        }
    }
    return .success(words)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    var words = txt.split(separator: " ").map { String($0) }
    var count = 0
    for i in 0..<words.count {
        if words[i].contains(" ") {
            return .failure(count)
        }
        if words[i].contains(",") {
            words[i] = words[i].replacingOccurrences(of: ",", with: "")
        }
    }
    for i in 0..<words.count {
        if words[i].lowercased().firstIndex(of: "a")!.utf16Offset(in: words[i]) % 2 != 0 {
            count += 1
        }
    }
    return .success(words)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    var words = txt.split(separator: " ").map { String($0) }
    var count = 0
    for i in 0..<words.count {
        if words[i].contains(" ") {
            return .failure(count)
        }
        if words[i].contains(",") {
            words[i] = words[i].replacingOccurrences(of: ",", with: "")
        }
    }
    for i in 0..<words.count {
        if words[i].lowercased().firstIndex(of: "a")!.utf16Offset(in: words[i]) % 2 != 0 {
            count += 1
        }
    }
    return .success(words)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    var words = txt.split(separator: " ").map { String($0) }
    var count = 0
    for i in 0..<words.
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
func splitWords(txt: String) -> Result<[String], Int> { // invalid redeclaration of 'splitWords(txt:)'

extension Int: Error {

}

extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }
    let oddLettersCount = oddLetters.count
    if oddLettersCount == 0 {
        return .failure(oddLettersCount)
    }
    return .success(words)
}
```swift
extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }
    let oddLettersCount = oddLetters.count
    if oddLettersCount == 0 {
        return .failure(oddLettersCount)
    }
    return .success(words)
}
<|file_separator|>
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'

extension Int: Error {

}

extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }
    let lowerCaseLetters = words.filter { $0.lowercased() == $0 }
    let lowerCaseLettersCount = lowerCaseLetters.count
    let oddLettersCount = oddLetters.count
    if oddLettersCount == 0 {
        return .failure(lowerCaseLettersCount)
    }
    return .success(words)
}

func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }
    let lowerCaseLetters = words.filter { $0.lowercased() == $0 }
    let lowerCaseLettersCount = lowerCaseLetters.count
    let oddLettersCount = oddLetters.count
    if oddLettersCount == 0 {
        return .failure(lowerCaseLettersCount)
    }
    return .success(words)
}
```swift
extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }
    let lowerCaseLetters = words.filter { $0.lowercased() == $0 }
    let lowerCaseLettersCount = lowerCaseLetters.count
    let oddLettersCount = oddLetters.count
    if oddLettersCount == 0 {
        return .failure(lowerCaseLettersCount)
    }
    return .success(words)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }
    let lowerCaseLetters = words.filter { $0.lowercased() == $0 }
    let lowerCaseLettersCount = lowerCaseLetters.count
    let oddLettersCount = oddLetters.count
    if oddLettersCount == 0 {
        return .failure(lowerCaseLettersCount)
    }
    return .success(words)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }
    let lowerCaseLetters = words.filter { $0.lowercased() == $0 }
    let lowerCaseLettersCount = lowerCaseLetters.count
    let oddLettersCount = oddLetters.count
    if oddLettersCount == 0 {
        return .failure(lowerCaseLettersCount)
    }
    return .success(words)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }
    let lowerCaseLetters = words.filter { $0.lowercased() == $0 }
    let lowerCaseLettersCount = lowerCaseLetters.count
    let oddLettersCount = oddLetters.count
    if oddLettersCount == 0 {
        return .failure(lowerCaseLettersCount)
    }
    return .success(words)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0,
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
func splitWords(txt: String) -> Result<[String], Int> { // invalid redeclaration of 'splitWords(txt:)'

extension Int: Error {

}

extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddCount = 0
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        for char in word {
            if char.isLowercase {
                oddCount += 1
            }
        }
    }
    return .success(words.map { String($0) })
}

func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddCount = 0
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        for char in word {
            if char.isLowercase {
                oddCount += 1
            }
        }
    }
    return .success(words.map { String($0) })
}
```swift
extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddCount = 0
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        for char in word {
            if char.isLowercase {
                oddCount += 1
            }
        }
    }
    return .success(words.map { String($0) })
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddCount = 0
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        for char in word {
            if char.isLowercase {
                oddCount += 1
            }
        }
    }
    return .success(words.map { String($0) })
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddCount = 0
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        for char in word {
            if char.isLowercase {
                oddCount += 1
            }
        }
    }
    return .success(words.map { String($0) })
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddCount = 0
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        for char in word {
            if char.isLowercase {
                oddCount += 1
            }
        }
    }
    return .success(words.map { String($0) })
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
func splitWords(txt: String) -> Result<[String], Int> { // invalid redeclaration of 'splitWords(txt:)'

extension Int: Error {

}

extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 == 1 }.map { $0.lowercased() }.sorted { $0 < $1 }
    return oddLetters.count
}
```swift
extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 == 1 }.map { $0.lowercased() }.sorted { $0 < $1 }
    return oddLetters.count
}
<|file_separator|>
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
return oddLetters.count // cannot convert return expression of type 'Int' to return type 'Result<[String], Int>'

extension Int: Error {

}

extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    for word in words {
        let letters = Array(word)
        for letter in letters {
            if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 {
                oddLetters += 1
            }
        }
    }
    return .success(words.map { String($0) })
}

func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    for word in words {
        let letters = Array(word)
        for letter in letters {
            if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 {
                oddLetters += 1
            }
        }
    }
    return .success(words.map { String($0) })
}
```swift
extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    for word in words {
        let letters = Array(word)
        for letter in letters {
            if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 {
                oddLetters += 1
            }
        }
    }
    return .success(words.map { String($0) })
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    for word in words {
        let letters = Array(word)
        for letter in letters {
            if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 {
                oddLetters += 1
            }
        }
    }
    return .success(words.map { String($0) })
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    for word in words {
        let letters = Array(word)
        for letter in letters {
            if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 {
                oddLetters += 1
            }
        }
    }
    return .success(words.map { String($0) })
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    for word in words {
        let letters = Array(word)
        for letter in letters {
            if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 {
                oddLetters += 1
            }
        }
    }
    return .success(words.map { String($0) })
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 { // cannot convert value of type 'Substring.Element' (aka 'Character') to expected argument type 'String'
func splitWords(txt: String) -> Result<[String], Int> { // invalid redeclaration of 'splitWords(txt:)'
if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 { // cannot convert value of type 'Substring.Element' (aka 'Character') to expected argument type 'String'

extension Int: Error {

}

extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word.replacingOccurrences(of: ",", with: ""))
        } else {
            for letter in word {
                if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 {
                    oddLetters += 1
                }
            }
            result.append(word)
        }
    }
    return .success(result)
}

func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word.replacingOccurrences(of: ",", with: ""))
        } else {
            for letter in word {
                if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 {
                    oddLetters += 1
                }
            }
            result.append(word)
        }
    }
    return .success(result)
}
```swift
extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word.replacingOccurrences(of: ",", with: ""))
        } else {
            for letter in word {
                if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 {
                    oddLetters += 1
                }
            }
            result.append(word)
        }
    }
    return .success(result)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word.replacingOccurrences(of: ",", with: ""))
        } else {
            for letter in word {
                if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 {
                    oddLetters += 1
                }
            }
            result.append(word)
        }
    }
    return .success(result)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word.replacingOccurrences(of: ",", with: ""))
        } else {
            for letter in word {
                if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 {
                    oddLetters += 1
                }
            }
            result.append(word)
        }
    }
    return .success(result)
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ")
    var oddLetters = 0
    var result = [String]()
    for word in words {
        if word.contains(" ") {
            return .failure(3)
        }
        if word.contains(",") {
            result.append(word.replacingOccurrences(of
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 { // cannot convert value of type 'Substring.Element' (aka 'Character') to expected argument type 'String'
result.append(word) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'
func splitWords(txt: String) -> Result<[String], Int> { // invalid redeclaration of 'splitWords(txt:)'
if letter.isLowercase && (Int(letter) ?? 0) % 2 != 0 { // cannot convert value of type 'Substring.Element' (aka 'Character') to expected argument type 'String'
result.append(word) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'

extension Int: Error {

}
```swift
extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let wordsWithOddOrder = words.filter { $0.count % 2 == 1 }
    let wordsWithEvenOrder = words.filter { $0.count % 2 == 0 }
    let oddOrderLetters = wordsWithOddOrder.map { $0.lowercased() }
    let evenOrderLetters = wordsWithEvenOrder.map { $0.lowercased() }
    let oddOrderLettersCount = oddOrderLetters.count
    let evenOrderLettersCount = evenOrderLetters.count
    let oddOrderLettersSorted = oddOrderLetters.sorted()
    let evenOrderLettersSorted = evenOrderLetters.sorted()
    let oddOrderLettersSortedCount = oddOrderLettersSorted.count
    let evenOrderLettersSortedCount = evenOrderLettersSorted.count
    let oddOrderLettersSortedFirst = oddOrderLettersSorted.first ?? ""
    let evenOrderLettersSortedFirst = evenOrderLettersSorted.first ?? ""
    let oddOrderLettersSortedLast = oddOrderLettersSorted.last ?? ""
    let evenOrderLettersSortedLast = evenOrderLettersSorted.last ?? ""
    let oddOrderLettersSortedFirstIndex = oddOrderLettersSorted.firstIndex(of: oddOrderLettersSortedFirst) ?? 0
    let evenOrderLettersSortedFirstIndex = evenOrderLettersSorted.firstIndex(of: evenOrderLettersSortedFirst) ?? 0
    let oddOrderLettersSortedLastIndex = oddOrderLettersSorted.lastIndex(of: oddOrderLettersSortedLast) ?? 0
    let evenOrderLettersSortedLastIndex = evenOrderLettersSorted.lastIndex(of: evenOrderLettersSortedLast) ?? 0
    let oddOrderLettersSortedFirstIndexDiff = oddOrderLettersSortedFirstIndex - evenOrderLettersSortedFirstIndex
    let evenOrderLettersSortedFirstIndexDiff = evenOrderLettersSortedFirstIndex - oddOrderLettersSortedFirstIndex
    let oddOrderLettersSortedLastIndexDiff = oddOrderLettersSortedLastIndex - evenOrderLettersSortedLastIndex
    let evenOrderLettersSortedLastIndexDiff = evenOrderLettersSortedLastIndex - oddOrderLettersSortedLastIndex
    let oddOrderLettersSortedFirstIndexDiffAbs = abs(oddOrderLettersSortedFirstIndexDiff)
    let evenOrderLettersSortedFirstIndexDiffAbs = abs(evenOrderLettersSortedFirstIndexDiff)
    let oddOrderLettersSortedLastIndexDiffAbs = abs(oddOrderLettersSortedLastIndexDiff)
    let evenOrderLettersSortedLastIndexDiffAbs = abs(evenOrderLettersSortedLastIndexDiff)
    let oddOrderLettersSortedFirstIndexDiffAbsSum = oddOrderLettersSortedFirstIndexDiffAbs + evenOrderLettersSortedFirstIndexDiffAbs
    let evenOrderLettersSortedFirstIndexDiffAbsSum = oddOrderLettersSortedFirstIndexDiffAbs + evenOrderLettersSortedFirstIndexDiffAbs
    let oddOrderLettersSortedLastIndexDiffAbsSum = oddOrderLettersSortedLastIndexDiffAbs + evenOrderLettersSortedLastIndexDiffAbs
    let evenOrderLettersSortedLastIndexDiffAbsSum = oddOrderLettersSortedLastIndexDiffAbs + evenOrderLettersSortedLastIndexDiffAbs
    let oddOrderLettersSortedFirstIndexDiffAbsSumAbs = abs(oddOrderLettersSortedFirstIndexDiffAbsSum)
    let evenOrderLettersSortedFirstIndexDiffAbsSumAbs = abs(evenOrderLettersSortedFirstIndexDiffAbsSum)
    let oddOrderLettersSortedLastIndexDiffAbsSumAbs = abs(oddOrderLettersSortedLastIndexDiffAbsSum)
    let evenOrderLettersSortedLastIndexDiffAbsSumAbs = abs(evenOrderLettersSortedLastIndexDiffAbsSum)
    let oddOrderLettersSortedFirstIndexDiffAbsSumAbsSum = oddOrderLettersSortedFirstIndexDiffAbsSumAbs + evenOrderLettersSortedFirstIndexDiffAbsSumAbs
    let evenOrderLettersSortedFirstIndexDiffAbsSumAbsSum = oddOrderLettersSortedFirstIndexDiffAbsSumAbs + evenOrderLettersSortedFirstIndexDiffAbsSumAbs
    let oddOrderLettersSortedLastIndexDiffAbsSumAbsSum = oddOrderLettersSortedLastIndexDiffAbsSumAbs + evenOrderLettersSortedLastIndexDiffAbsSumAbs
    let evenOrderLettersSortedLastIndexDiffAbsSumAbsSum = oddOrderLettersSortedLastIndexDiffAbsSumAbs + evenOrderLettersSortedLastIndexDiffAbsSumAbs
    let oddOrderLettersSortedFirstIndexDiffAbsSumAbsSumAbs = abs(oddOrderLettersSortedFirstIndexDiffAbsSumAbsSum)
    let evenOrderLettersSortedFirstIndexDiffAbsSumAbsSumAbs = abs(evenOrderLettersSortedFirstIndexDiffAbsSumAbsSum)
    let oddOrderLettersSortedLastIndexDiffAbsSumAbsSumAbs = abs(oddOrderLettersSortedLastIndexDiffAbsSumAbsSum)
    let evenOrderLettersSortedLast
XCTAssertTrue(splitWords(txt: "Hello world!") == .success(["Hello", "world!"])) // cannot find 'splitWords' in scope
XCTAssertTrue(splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])) // cannot find 'splitWords' in scope
XCTAssertTrue(splitWords(txt: "Hello world,!") == .success(["Hello", "world,!"])) // cannot find 'splitWords' in scope
XCTAssertTrue(splitWords(txt: "Hello,Hello,world !") == .success(["Hello,Hello,world", "!"])) // cannot find 'splitWords' in scope
XCTAssertTrue(splitWords(txt: "abcdef") == .failure(3)) // cannot find 'splitWords' in scope
XCTAssertTrue(splitWords(txt: "aaabb") == .failure(2)) // cannot find 'splitWords' in scope
XCTAssertTrue(splitWords(txt: "aaaBb") == .failure(1)) // cannot find 'splitWords' in scope
XCTAssertTrue(splitWords(txt: "") == .failure(0)) // cannot find 'splitWords' in scope

extension Int: Error {

}

extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }.map { $0.lowercased() }.sorted { ord($0) < ord($1) }
    return oddLetters.count
}

func sumPairs(arr: [Int], target: Int) -> Result<Int, Int> {
    var count = 0
    for i in 0..<arr.count {
        for j in i+1..<arr.count {
            if arr[i] + arr[j] == target {
                count += 1
            }
        }
    }
    return count
}

func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }.map { $0.lowercased() }.sorted { ord($0) < ord($1) }
    return oddLetters.count
}
```swift
extension Int: Error {}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }.map { $0.lowercased() }.sorted { ord($0) < ord($1) }
    return oddLetters.count
}

// Given an array of integers, return the number of times the sum of two integers in the array equals the target sum.
// Examples
// sumPairs([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 11) == .success(2)
// sumPairs([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 12) == .success(1)
// sumPairs([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 13) == .failure(0)
func sumPairs(arr: [Int], target: Int) -> Result<Int, Int> {
    var count = 0
    for i in 0..<arr.count {
        for j in i+1..<arr.count {
            if arr[i] + arr[j] == target {
                count += 1
            }
        }
    }
    return count
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }.map { $0.lowercased() }.sorted { ord($0) < ord($1) }
    return oddLetters.count
}

// Given an array of integers, return the number of times the sum of two integers in the array equals the target sum.
// Examples
// sumPairs([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 11) == .success(2)
// sumPairs([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 12) == .success(1)
// sumPairs([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 13) == .failure(0)
func sumPairs(arr: [Int], target: Int) -> Result<Int, Int> {
    var count = 0
    for i in 0..<arr.count {
        for j in i+1..<arr.count {
            if arr[i] + arr[j] == target {
                count += 1
            }
        }
    }
    return count
}

// Given a string of words, return an array of words split on whitespace, if no whitespaces exists in the text you
// should split on commas ',' if no commas exists you should return the number of lower-case letters with odd order in the
// alphabet, ord('a') = 0, ord('b') = 1, ... ord('z') = 25
// Examples
// splitWords(txt: "Hello world!") == .success(["Hello", "world!"])
// splitWords(txt: "Hello,world!") == .success(["Hello", "world!"])
// splitWords(txt: "abcdef") == .failure(3)
func splitWords(txt: String) -> Result<[String], Int> {
    let words = txt.split(separator: " ").map { String($0) }
    let oddLetters = words.filter { $0.count % 2 != 0 }.map { $0.lowercased() }.sorted { ord($
extension Int: Error {} // redundant conformance of 'Int' to protocol 'Error'
let oddLetters = words.filter { $0.count % 2 != 0 }.map { $0.lowercased() }.sorted { ord($0) < ord($1) } // cannot find 'ord' in scope
let oddLetters = words.filter { $0.count % 2 != 0 }.map { $0.lowercased() }.sorted { ord($0) < ord($1) } // cannot find 'ord' in scope
return count // cannot convert return expression of type 'Int' to return type 'Result<Int, Int>'
func splitWords(txt: String) -> Result<[String], Int> { // invalid redeclaration of 'splitWords(txt:)'
let oddLetters = words.filter { $0.count % 2 != 0 }.map { $0.lowercased() }.sorted { ord($0) < ord($1) } // cannot find 'ord' in scope
let oddLetters = words.filter { $0.count % 2 != 0 }.map { $0.lowercased() }.sorted { ord($0) < ord($1) } // cannot find 'ord' in scope

func isSorted(lst: [Int]) -> Bool {
    var sorted = true
    for i in 0..<lst.count - 1 {
        if lst[i] > lst[i + 1] {
            sorted = false
        }
    }
    return sorted
}

func longestSubstring(str: String) -> Int {
    var longest = 0
    var current = ""
    for char in str {
        if current.contains(char) {
            if current.count > longest {
                longest = current.count
            }
            current = String(char)
        } else {
            current += String(char)
        }
    }
    if current.count > longest {
        longest = current.count
    }
    return longest
}

func bobCount(str: String) -> Int {
    var count = 0
    for i in 0..<str.count {
        if str[i...i + 2] == "bob" {
            count += 1
        }
    }
    return count
}
```swift
// Given an array of numbers, return whether or not they are sorted
// in ascending order. If array has more than 1 duplicate of the same
// number, return false. Assume no negative numbers and only integers.
// Examples
// isSorted(lst: [5]) == true
// isSorted(lst: [1, 2, 3, 4, 5]) == true
// isSorted(lst: [1, 3, 2, 4, 5]) == false
// isSorted(lst: [1, 2, 3, 4, 5, 6]) == true
// isSorted(lst: [1, 2, 3, 4, 5, 6, 7]) == true
// isSorted(lst: [1, 3, 2, 4, 5, 6, 7]) == false
// isSorted(lst: [1, 2, 2, 3, 3, 4]) == true
// isSorted(lst: [1, 2, 2, 2, 3, 4]) == false
func isSorted(lst: [Int]) -> Bool {
    var sorted = true
    for i in 0..<lst.count - 1 {
        if lst[i] > lst[i + 1] {
            sorted = false
        }
    }
    return sorted
}

// Given a string, return the length of the longest substring without
// repeating characters. If there are no repeating characters, return
// the length of the string.
// Examples
// longestSubstring(str: "abcabcbb") == 3
// longestSubstring(str: "bbbbb") == 1
// longestSubstring(str: "pwwkew") == 3
func longestSubstring(str: String) -> Int {
    var longest = 0
    var current = ""
    for char in str {
        if current.contains(char) {
            if current.count > longest {
                longest = current.count
            }
            current = String(char)
        } else {
            current += String(char)
        }
    }
    if current.count > longest {
        longest = current.count
    }
    return longest
}

// Given a string, return the number of times that the string "William"
// appears anywhere in the string.
// Examples
// bobCount(str: "bobobob") == 2
// bobCount(str: "bobobobob") == 3
// bobCount(str: "bobobobobob") == 4
// bobCount(str: "bobobobobobob") == 5
// bobCount(str: "bobobobobobobob") == 6
func bobCount(str: String) -> Int {
    var count = 0
    for i in 0..<str.count {
        if str[i...i + 2] == "bob" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times that the string "bob"
// appears anywhere in the string.
// Examples
// bobCount(str: "bobobob") == 2
// bobCount(str: "bobobobob") == 3
// bobCount(str: "bobobobobob") == 4
// bobCount(str: "bobobobobobob") == 5
// bobCount(str: "bobobobobobobob") == 6
func bobCount(str: String) -> Int {
    var count = 0
    for i in 0..<str.count {
        if str[i...i + 2] == "bob" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times that the string "bob"
// appears anywhere in the string.
// Examples
// bobCount(str: "bobobob") == 2
// bobCount(str: "bobobobob") == 3
// bobCount(str: "bobobobobob") == 4
// bobCount(str: "bobobobobobob") == 5
// bobCount(str: "bobobobobobobob") == 6
func bobCount(str: String) -> Int {
    var count = 0
    for i in 0..<str.count {
        if str[i...i + 2] == "bob" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times that the string "bob"
// appears anywhere in the string.
// Examples
// bobCount(str: "bobobob") == 2
// bobCount(str: "bobobobob") == 3
// bobCount(str: "bobobobobob") == 4
// bobCount(str: "bobobobobobob") == 5
// bobCount(str: "bobobobobobobob") == 6
func bobCount(str: String) -> Int {
    var count = 0
    for i in 0..<str.count {
        if str[i...i + 2] == "bob" {
            count += 1
        }
    }
    return count
}

// Given a string, return the number of times that the string "bob"
// appears anywhere in the string.
// Examples
// bobCount(str: "bobobob") == 2
// bobCount(str: "bobobobob") == 
if str[i...i + 2] == "bob" { // 'subscript(_:)' is unavailable: cannot subscript String with an integer range, use a String.Index range instead.

func isSorted(lst: [Int]) -> Bool {
  var sorted = true
  for i in 0..<lst.count-1 {
    if lst[i] > lst[i+1] {
      sorted = false
    }
  }
  return sorted
}
```swift
// Given an array of numbers, return whether or not they are sorted
// in ascending order. If array has more than 1 duplicate of the same
// number, return false. Assume no negative numbers and only integers.
// Examples
// isSorted(lst: [5]) == true
// isSorted(lst: [1, 2, 3, 4, 5]) == true
// isSorted(lst: [1, 3, 2, 4, 5]) == false
// isSorted(lst: [1, 2, 3, 4, 5, 6]) == true
// isSorted(lst: [1, 2, 3, 4, 5, 6, 7]) == true
// isSorted(lst: [1, 3, 2, 4, 5, 6, 7]) == false
// isSorted(lst: [1, 2, 2, 3, 3, 4]) == true
// isSorted(lst: [1, 2, 2, 2, 3, 4]) == false
func isSorted(lst: [Int]) -> Bool {
  var sorted = true
  for i in 0..<lst.count-1 {
    if lst[i] > lst[i+1] {
      sorted = false
    }
  }
  return sorted
}
<|file_separator|>```
 // Fatal error: Range requires lowerBound <= upperBound

func isSorted(lst: [Int]) -> Bool {
    var sorted = true
    for i in 0..<lst.count-1 {
        if lst[i] > lst[i+1] {
            sorted = false
        }
    }
    return sorted
}
```swift
// Given an array of numbers, return whether or not they are sorted
// in ascending order. If array has more than 1 duplicate of the same
// number, return false. Assume no negative numbers and only integers.
// Examples
// isSorted(lst: [5]) == true
// isSorted(lst: [1, 2, 3, 4, 5]) == true
// isSorted(lst: [1, 3, 2, 4, 5]) == false
// isSorted(lst: [1, 2, 3, 4, 5, 6]) == true
// isSorted(lst: [1, 2, 3, 4, 5, 6, 7]) == true
// isSorted(lst: [1, 3, 2, 4, 5, 6, 7]) == false
// isSorted(lst: [1, 2, 2, 3, 3, 4]) == true
// isSorted(lst: [1, 2, 2, 2, 3, 4]) == false
func isSorted(lst: [Int]) -> Bool {
    var sorted = true
    for i in 0..<lst.count-1 {
        if lst[i] > lst[i+1] {
            sorted = false
        }
    }
    return sorted
}
<|file_separator|>```
 // Fatal error: Range requires lowerBound <= upperBound

func isSorted(lst: [Int]) -> Bool {
    var sorted = true
    for i in 0..<lst.count - 1 {
        if lst[i] > lst[i + 1] {
            sorted = false
        }
    }
    return sorted
}

func largest(lst: [Int]) -> Int {
    var largest = lst[0]
    for i in 0..<lst.count {
        if lst[i] > largest {
            largest = lst[i]
        }
    }
    return largest
}

func smallest(lst: [Int]) -> Int {
    var smallest = lst[0]
    for i in 0..<lst.count {
        if lst[i] < smallest {
            smallest = lst[i]
        }
    }
    return smallest
}

func sum(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        sum += lst[i]
    }
    return sum
}
```swift
// Given an array of numbers, return whether or not they are sorted
// in ascending order. If array has more than 1 duplicate of the same
// number, return false. Assume no negative numbers and only integers.
// Examples
// isSorted(lst: [5]) == true
// isSorted(lst: [1, 2, 3, 4, 5]) == true
// isSorted(lst: [1, 3, 2, 4, 5]) == false
// isSorted(lst: [1, 2, 3, 4, 5, 6]) == true
// isSorted(lst: [1, 2, 3, 4, 5, 6, 7]) == true
// isSorted(lst: [1, 3, 2, 4, 5, 6, 7]) == false
// isSorted(lst: [1, 2, 2, 3, 3, 4]) == true
// isSorted(lst: [1, 2, 2, 2, 3, 4]) == false
func isSorted(lst: [Int]) -> Bool {
    var sorted = true
    for i in 0..<lst.count - 1 {
        if lst[i] > lst[i + 1] {
            sorted = false
        }
    }
    return sorted
}

// Given an array of numbers, return the largest number in the array.
// Examples
// largest(lst: [1, 2, 3, 4, 5]) == 5
// largest(lst: [1, 3, 2, 4, 5]) == 5
// largest(lst: [1, 2, 3, 4, 5, 6]) == 6
// largest(lst: [1, 2, 3, 4, 5, 6, 7]) == 7
// largest(lst: [1, 3, 2, 4, 5, 6, 7]) == 7
// largest(lst: [1, 2, 2, 3, 3, 4]) == 4
// largest(lst: [1, 2, 2, 2, 3, 4]) == 4
func largest(lst: [Int]) -> Int {
    var largest = lst[0]
    for i in 0..<lst.count {
        if lst[i] > largest {
            largest = lst[i]
        }
    }
    return largest
}

// Given an array of numbers, return the smallest number in the array.
// Examples
// smallest(lst: [1, 2, 3, 4, 5]) == 1
// smallest(lst: [1, 3, 2, 4, 5]) == 1
// smallest(lst: [1, 2, 3, 4, 5, 6]) == 1
// smallest(lst: [1, 2, 3, 4, 5, 6, 7]) == 1
// smallest(lst: [1, 3, 2, 4, 5, 6, 7]) == 1
// smallest(lst: [1, 2, 2, 3, 3, 4]) == 1
// smallest(lst: [1, 2, 2, 2, 3, 4]) == 1
func smallest(lst: [Int]) -> Int {
    var smallest = lst[0]
    for i in 0..<lst.count {
        if lst[i] < smallest {
            smallest = lst[i]
        }
    }
    return smallest
}

// Given an array of numbers, return the sum of all the numbers in the array.
// Examples
// sum(lst: [1, 2, 3, 4, 5]) == 15
// sum(lst: [1, 3, 2, 4, 5]) == 15
// sum(lst: [1, 2, 3, 4, 5, 6]) == 21
// sum(lst: [1, 2, 3, 4, 5, 6, 7]) == 28
// sum(lst: [1, 3, 2, 4, 5, 6, 7]) == 28
// sum(lst: [1, 2, 2, 3, 3, 4]) == 15
// sum(lst: [1, 2, 2, 2, 3, 4]) == 15
func sum(lst: [Int]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        sum += lst[i]
    }
    return sum
}

// Given an array of numbers, return the sum of all the even numbers in the
// array. Assume no negative numbers.
// Examples
// sumEven(lst: [1, 2, 3, 4, 5]) == 6
// sumEven(lst: [1, 3, 2, 4, 5]) == 6
// sumEven(lst: [1, 2, 3, 4, 5, 6]) == 6
// sumEven(lst: [1, 2, 3, 4, 5, 6, 7]) == 6
// sumEven(lst: [1, 3, 2, 4, 5, 
 // Fatal error: Range requires lowerBound <= upperBound

func isSorted(lst: [Int]) -> Bool {
    var sorted = true
    for i in 0..<lst.count-1 {
        if lst[i] > lst[i+1] {
            sorted = false
        }
    }
    return sorted
}
```swift
// Given an array of numbers, return whether or not they are sorted
// in ascending order. If array has more than 1 duplicate of the same
// number, return false. Assume no negative numbers and only integers.
// Examples
// isSorted(lst: [5]) == true
// isSorted(lst: [1, 2, 3, 4, 5]) == true
// isSorted(lst: [1, 3, 2, 4, 5]) == false
// isSorted(lst: [1, 2, 3, 4, 5, 6]) == true
// isSorted(lst: [1, 2, 3, 4, 5, 6, 7]) == true
// isSorted(lst: [1, 3, 2, 4, 5, 6, 7]) == false
// isSorted(lst: [1, 2, 2, 3, 3, 4]) == true
// isSorted(lst: [1, 2, 2, 2, 3, 4]) == false
func isSorted(lst: [Int]) -> Bool {
    var sorted = true
    for i in 0..<lst.count-1 {
        if lst[i] > lst[i+1] {
            sorted = false
        }
    }
    return sorted
}
<|file_separator|>```
 // Fatal error: Range requires lowerBound <= upperBound

func isSorted(lst: [Int]) -> Bool {
  var sorted = true
  for i in 0..<lst.count-1 {
    if lst[i] > lst[i+1] {
      sorted = false
    }
  }
  return sorted
}
```swift
// Given an array of numbers, return whether or not they are sorted
// in ascending order. If array has more than 1 duplicate of the same
// number, return false. Assume no negative numbers and only integers.
// Examples
// isSorted(lst: [5]) == true
// isSorted(lst: [1, 2, 3, 4, 5]) == true
// isSorted(lst: [1, 3, 2, 4, 5]) == false
// isSorted(lst: [1, 2, 3, 4, 5, 6]) == true
// isSorted(lst: [1, 2, 3, 4, 5, 6, 7]) == true
// isSorted(lst: [1, 3, 2, 4, 5, 6, 7]) == false
// isSorted(lst: [1, 2, 2, 3, 3, 4]) == true
// isSorted(lst: [1, 2, 2, 2, 3, 4]) == false
func isSorted(lst: [Int]) -> Bool {
  var sorted = true
  for i in 0..<lst.count-1 {
    if lst[i] > lst[i+1] {
      sorted = false
    }
  }
  return sorted
}
<|file_separator|>```
 // Fatal error: Range requires lowerBound <= upperBound

func isSorted(lst: [Int]) -> Bool {
  var sorted = true
  for i in 0..<lst.count - 1 {
    if lst[i] > lst[i + 1] {
      sorted = false
    }
  }
  return sorted
}
```swift
// Given an array of numbers, return whether or not they are sorted
// in ascending order. If array has more than 1 duplicate of the same
// number, return false. Assume no negative numbers and only integers.
// Examples
// isSorted(lst: [5]) == true
// isSorted(lst: [1, 2, 3, 4, 5]) == true
// isSorted(lst: [1, 3, 2, 4, 5]) == false
// isSorted(lst: [1, 2, 3, 4, 5, 6]) == true
// isSorted(lst: [1, 2, 3, 4, 5, 6, 7]) == true
// isSorted(lst: [1, 3, 2, 4, 5, 6, 7]) == false
// isSorted(lst: [1, 2, 2, 3, 3, 4]) == true
// isSorted(lst: [1, 2, 2, 2, 3, 4]) == false
func isSorted(lst: [Int]) -> Bool {
  var sorted = true
  for i in 0..<lst.count - 1 {
    if lst[i] > lst[i + 1] {
      sorted = false
    }
  }
  return sorted
}
<|file_separator|>```
 // Fatal error: Range requires lowerBound <= upperBound

func isSorted(lst: [Int]) -> Bool {
  var sorted = true
  for i in 0..<lst.count - 1 {
    if lst[i] > lst[i + 1] {
      sorted = false
    }
  }
  return sorted
}
```swift
// Given an array of numbers, return whether or not they are sorted
// in ascending order. If array has more than 1 duplicate of the same
// number, return false. Assume no negative numbers and only integers.
// Examples
// isSorted(lst: [5]) == true
// isSorted(lst: [1, 2, 3, 4, 5]) == true
// isSorted(lst: [1, 3, 2, 4, 5]) == false
// isSorted(lst: [1, 2, 3, 4, 5, 6]) == true
// isSorted(lst: [1, 2, 3, 4, 5, 6, 7]) == true
// isSorted(lst: [1, 3, 2, 4, 5, 6, 7]) == false
// isSorted(lst: [1, 2, 2, 3, 3, 4]) == true
// isSorted(lst: [1, 2, 2, 2, 3, 4]) == false
func isSorted(lst: [Int]) -> Bool {
  var sorted = true
  for i in 0..<lst.count - 1 {
    if lst[i] > lst[i + 1] {
      sorted = false
    }
  }
  return sorted
}
<|file_separator|>```
 // Fatal error: Range requires lowerBound <= upperBound

func isSorted(lst: [Int]) -> Bool {
  var sorted = true
  for i in 0..<lst.count - 1 {
    if lst[i] > lst[i + 1] {
      sorted = false
    }
  }
  return sorted
}

func removeVowels(str: String) -> String {
  var result = ""
  for char in str {
    if char != "a" && char != "e" && char != "i" && char != "o" && char != "u" && char != "A" && char != "E" && char != "I" && char != "O" && char != "U" {
      result += String(char)
    }
  }
  return result
}
```swift
// Given an array of numbers, return whether or not they are sorted
// in ascending order. If array has more than 1 duplicate of the same
// number, return false. Assume no negative numbers and only integers.
// Examples
// isSorted(lst: [5]) == true
// isSorted(lst: [1, 2, 3, 4, 5]) == true
// isSorted(lst: [1, 3, 2, 4, 5]) == false
// isSorted(lst: [1, 2, 3, 4, 5, 6]) == true
// isSorted(lst: [1, 2, 3, 4, 5, 6, 7]) == true
// isSorted(lst: [1, 3, 2, 4, 5, 6, 7]) == false
// isSorted(lst: [1, 2, 2, 3, 3, 4]) == true
// isSorted(lst: [1, 2, 2, 2, 3, 4]) == false
func isSorted(lst: [Int]) -> Bool {
  var sorted = true
  for i in 0..<lst.count - 1 {
    if lst[i] > lst[i + 1] {
      sorted = false
    }
  }
  return sorted
}

// Given a string, return the string with all the vowels removed.
// Examples
// removeVowels(str: "hello") == "hll"
// removeVowels(str: "aeiou") == ""
// removeVowels(str: "aeiouAEIOU") == ""
// removeVowels(str: "aeiouAEIOU1234567890") == "1234567890"
func removeVowels(str: String) -> String {
  var result = ""
  for char in str {
    if char != "a" && char != "e" && char != "i" && char != "o" && char != "u" && char != "A" && char != "E" && char != "I" && char != "O" && char != "U" {
      result += String(char)
    }
  }
  return result
}

// Given a string, return the string with all the vowels removed.
// Examples
// removeVowels(str: "hello") == "hll"
// removeVowels(str: "aeiou") == ""
// removeVowels(str: "aeiouAEIOU") == ""
// removeVowels(str: "aeiouAEIOU1234567890") == "1234567890"
func removeVowels(str: String) -> String {
  var result = ""
  for char in str {
    if char != "a" && char != "e" && char != "i" && char != "o" && char != "u" && char != "A" && char != "E" && char != "I" && char != "O" && char != "U" {
      result += String(char)
    }
  }
  return result
}

// Given a string, return the string with all the vowels removed.
// Examples
// removeVowels(str: "hello") == "hll"
// removeVowels(str: "aeiou") == ""
// removeVowels(str: "aeiouAEIOU") == ""
// removeVowels(str: "aeiouAEIOU1234567890") == "1234567890"
func removeVowels(str: String) -> String {
  var result = ""
  for char in str {
    if char != "a" && char != "e" && char != "i" && char != "o" && char != "u" && char != "A" && char != "E" && char != "I" && char != "O" && char != "U" {
      result += String(char)
    }
  }
  return result
}

// Given a string, return the string with all the vowels removed.
// Examples
// removeVowels(str: "hello") == "hll"
// removeVowels(str: "aeiou") == ""
// removeVowels(str: "aeiouAEIOU") == ""
// removeVowels(str: "aeiouAEIOU1234567890") == "1234567890"
func removeVowels(str: String) -> String {
  var result = ""
  for char in str {
    if char != "a" && char != "e" && char != "i" && char != "o" && char != "u" && char != "A" && char != "E" && char != "I" && char != "O" && char != "U" {
      result += String(char)
    }
  }
  return result
}

// Given a string, return the string with all the vowels removed.
// Examples
// removeVowels(str: "hello") == "hll"
// removeVowels(str: "aeiou") == ""
// removeVowels(str: "aeiouAEIOU") == ""
// removeVowels(str: "aeiouAEIOU1234567890") == "1234567890"
func removeVowels(str: String) -> String {
  var result = ""
 // Fatal error: Range requires lowerBound <= upperBound

func isSorted(lst: [Int]) -> Bool {
    var sorted = true
    for i in 0..<lst.count - 1 {
        if lst[i] > lst[i + 1] {
            sorted = false
        }
    }
    return sorted
}

func swapFirstLast(str: String) -> String {
    var newStr = ""
    if str.count == 1 {
        newStr = str
    } else {
        newStr = String(str[str.index(str.startIndex, offsetBy: 1)]) + String(str[str.index(str.startIndex, offsetBy: str.count - 1)]) + String(str[str.index(str.startIndex, offsetBy: 2)...str.index(str.startIndex, offsetBy: str.count - 1)]) + String(str[str.index(str.startIndex, offsetBy: 0)])
    }
    return newStr
}

func swapFirstLast(str: String) -> String {
    if str.count <= 2 {
        return str
    } else {
        return String(str[str.index(str.startIndex, offsetBy: 1)]) + String(str[str.index(str.startIndex, offsetBy: str.count - 1)]) + String(str[str.index(str.startIndex, offsetBy: 2)...str.index(str.startIndex, offsetBy: str.count - 1)]) + String(str[str.index(str.startIndex, offsetBy: 0)])
    }
}

func repeatFirst(str: String, n: Int) -> String {
    var newStr = ""
    for _ in 0..<n {
        newStr += str
    }
    return newStr
}

func repeatNth(str: String, n: Int) -> String {
    var newStr = ""
    for _ in 0..<n {
        newStr += String(str[str.index(str.startIndex, offsetBy: n)])
    }
    return newStr
}
```swift
// Given an array of numbers, return whether or not they are sorted
// in ascending order. If array has more than 1 duplicate of the same
// number, return false. Assume no negative numbers and only integers.
// Examples
// isSorted(lst: [5]) == true
// isSorted(lst: [1, 2, 3, 4, 5]) == true
// isSorted(lst: [1, 3, 2, 4, 5]) == false
// isSorted(lst: [1, 2, 3, 4, 5, 6]) == true
// isSorted(lst: [1, 2, 3, 4, 5, 6, 7]) == true
// isSorted(lst: [1, 3, 2, 4, 5, 6, 7]) == false
// isSorted(lst: [1, 2, 2, 3, 3, 4]) == true
// isSorted(lst: [1, 2, 2, 2, 3, 4]) == false
func isSorted(lst: [Int]) -> Bool {
    var sorted = true
    for i in 0..<lst.count - 1 {
        if lst[i] > lst[i + 1] {
            sorted = false
        }
    }
    return sorted
}

// Given a string, return a new string where the first and last chars
// have been exchanged.
// Examples
// swapFirstLast(str: "abc") == "cba"
// swapFirstLast(str: "a") == "a"
// swapFirstLast(str: "ab") == "ba"
func swapFirstLast(str: String) -> String {
    var newStr = ""
    if str.count == 1 {
        newStr = str
    } else {
        newStr = String(str[str.index(str.startIndex, offsetBy: 1)]) + String(str[str.index(str.startIndex, offsetBy: str.count - 1)]) + String(str[str.index(str.startIndex, offsetBy: 2)...str.index(str.startIndex, offsetBy: str.count - 1)]) + String(str[str.index(str.startIndex, offsetBy: 0)])
    }
    return newStr
}

// Given a string, return a new string with the first and last chars
// exchanged. If the string length is 2 or less, return the string unchanged.
// Examples
// swapFirstLast(str: "abc") == "cba"
// swapFirstLast(str: "a") == "a"
// swapFirstLast(str: "ab") == "ba"
func swapFirstLast(str: String) -> String {
    if str.count <= 2 {
        return str
    } else {
        return String(str[str.index(str.startIndex, offsetBy: 1)]) + String(str[str.index(str.startIndex, offsetBy: str.count - 1)]) + String(str[str.index(str.startIndex, offsetBy: 2)...str.index(str.startIndex, offsetBy: str.count - 1)]) + String(str[str.index(str.startIndex, offsetBy: 0)])
    }
}

// Given a string, return a new string with the first char of the
// string repeated n times.
// Examples
// repeatFirst(str: "a", n: 5) == "aaaaa"
// repeatFirst(str: "abc", n: 3) == "abcabcabc"
// repeatFirst(str: "ab", n: 4) == "abababab"
func repeatFirst(str: String, n: Int) -> String {
    var newStr = ""
    for _ in 0..<n {
        newStr += str
    }
    return newStr
}

// Given a string, return a new string with the nth char of the
// string repeated n times.
// Examples
// repeatNth(str: "a", n: 5) == "aaaaa"
// repeatNth(str: "abc", n: 3) == "abcabcabc"
// repeatNth(str: "ab", n: 4) == "abababab"
func repeatNth(str: String, n: Int) -> String {
    var newStr = ""
    for _ in 0..<n {
        newStr += String(str[str.index(str.startIndex, offsetBy: n)])
    }
    return newStr
}

// Given a string, return a new string with the nth char of the
// string repeated n times.
// Examples
// repeatNth(str: "a", n: 5) == "aaaaa"
// repeatNth(str: "abc", n: 3) == "abcabcabc"
// repeatNth(str: "ab", n: 4) == "abababab"
func repeatNth(str: String, n: Int) -> String {
    var newStr = ""
    for _ in 0..<n {
        newStr += String(str[str.index(str.startIndex, offsetBy: n)])
    }
    return newStr
}

// Given a string, return a new string with the nth char of the
// string repeated n times.
// Examples
// repeatNth(str: "a", n: 5) == "aaaaa"
// repeatNth(str: "abc", n: 3) == "abcabcabc"
// repeatNth(str: "ab", n: 4) == "abababab"
func swapFirstLast(str: String) -> String { // invalid redeclaration of 'swapFirstLast(str:)'

func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    let start = max(interval1.0, interval2.0)
    let end = min(interval1.1, interval2.1)
    let length = end - start
    if length == 1 {
        return "NO"
    }
    if length % 2 == 0 {
        return "NO"
    }
    return "YES"
}
```swift
// You are given two intervals,
// where each interval is a pair of integers. For example, interval = (start, end) = (1, 2).
// The given intervals are closed which means that the interval (start, end)
// includes both start and end.
// For each given interval, it is assumed that its start is less or equal its end.
// Your task is to determine whether the length of intersection of these two 
// intervals is a prime number.
// Example, the intersection of the intervals (1, 3), (2, 4) is (2, 3)
// which its length is 1, which not a prime number.
// If the length of the intersection is a prime number, return "YES",
// otherwise, return "NO".
// If the two intervals don't intersect, return "NO".
// [input/output] samples:
// intersection(interval1: (1, 2), interval2: (2, 3)) == "NO"
// intersection(interval1: (-1, 1), interval2: (0, 4)) == "NO"
// intersection(interval1: (-3, -1), interval2: (-5, 5)) == "YES"
func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    let start = max(interval1.0, interval2.0)
    let end = min(interval1.1, interval2.1)
    let length = end - start
    if length == 1 {
        return "NO"
    }
    if length % 2 == 0 {
        return "NO"
    }
    return "YES"
}
<|file_separator|>
 // XCTAssertTrue failed

func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval2.0 > interval1.1 {
        return "NO"
    }
    return "YES"
}
```swift
// You are given two intervals,
// where each interval is a pair of integers. For example, interval = (start, end) = (1, 2).
// The given intervals are closed which means that the interval (start, end)
// includes both start and end.
// For each given interval, it is assumed that its start is less or equal its end.
// Your task is to determine whether the length of intersection of these two 
// intervals is a prime number.
// Example, the intersection of the intervals (1, 3), (2, 4) is (2, 3)
// which its length is 1, which not a prime number.
// If the length of the intersection is a prime number, return "YES",
// otherwise, return "NO".
// If the two intervals don't intersect, return "NO".
// [input/output] samples:
// intersection(interval1: (1, 2), interval2: (2, 3)) == "NO"
// intersection(interval1: (-1, 1), interval2: (0, 4)) == "NO"
// intersection(interval1: (-3, -1), interval2: (-5, 5)) == "YES"
func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval2.0 > interval1.1 {
        return "NO"
    }
    return "YES"
}
<|file_separator|>```
 // XCTAssertTrue failed

func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval2.0 > interval1.1 {
        return "NO"
    }
    if interval1.0 <= interval2.0 && interval1.1 >= interval2.1 {
        return "YES"
    }
    return "NO"
}
```swift
// You are given two intervals,
// where each interval is a pair of integers. For example, interval = (start, end) = (1, 2).
// The given intervals are closed which means that the interval (start, end)
// includes both start and end.
// For each given interval, it is assumed that its start is less or equal its end.
// Your task is to determine whether the length of intersection of these two 
// intervals is a prime number.
// Example, the intersection of the intervals (1, 3), (2, 4) is (2, 3)
// which its length is 1, which not a prime number.
// If the length of the intersection is a prime number, return "YES",
// otherwise, return "NO".
// If the two intervals don't intersect, return "NO".
// [input/output] samples:
// intersection(interval1: (1, 2), interval2: (2, 3)) == "NO"
// intersection(interval1: (-1, 1), interval2: (0, 4)) == "NO"
// intersection(interval1: (-3, -1), interval2: (-5, 5)) == "YES"
func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval2.0 > interval1.1 {
        return "NO"
    }
    if interval1.0 <= interval2.0 && interval1.1 >= interval2.1 {
        return "YES"
    }
    return "NO"
}
<|file_separator|>
 // XCTAssertTrue failed

func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    let start = max(interval1.0, interval2.0)
    let end = min(interval1.1, interval2.1)
    if end - start == 1 {
        return "YES"
    }
    return "NO"
}
```swift
// You are given two intervals,
// where each interval is a pair of integers. For example, interval = (start, end) = (1, 2).
// The given intervals are closed which means that the interval (start, end)
// includes both start and end.
// For each given interval, it is assumed that its start is less or equal its end.
// Your task is to determine whether the length of intersection of these two 
// intervals is a prime number.
// Example, the intersection of the intervals (1, 3), (2, 4) is (2, 3)
// which its length is 1, which not a prime number.
// If the length of the intersection is a prime number, return "YES",
// otherwise, return "NO".
// If the two intervals don't intersect, return "NO".
// [input/output] samples:
// intersection(interval1: (1, 2), interval2: (2, 3)) == "NO"
// intersection(interval1: (-1, 1), interval2: (0, 4)) == "NO"
// intersection(interval1: (-3, -1), interval2: (-5, 5)) == "YES"
func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    let start = max(interval1.0, interval2.0)
    let end = min(interval1.1, interval2.1)
    if end - start == 1 {
        return "YES"
    }
    return "NO"
}
<|file_separator|>
 // XCTAssertTrue failed

func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    // Write your code here
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    return "YES"
}
```swift
// You are given two intervals,
// where each interval is a pair of integers. For example, interval = (start, end) = (1, 2).
// The given intervals are closed which means that the interval (start, end)
// includes both start and end.
// For each given interval, it is assumed that its start is less or equal its end.
// Your task is to determine whether the length of intersection of these two 
// intervals is a prime number.
// Example, the intersection of the intervals (1, 3), (2, 4) is (2, 3)
// which its length is 1, which not a prime number.
// If the length of the intersection is a prime number, return "YES",
// otherwise, return "NO".
// If the two intervals don't intersect, return "NO".
// [input/output] samples:
// intersection(interval1: (1, 2), interval2: (2, 3)) == "NO"
// intersection(interval1: (-1, 1), interval2: (0, 4)) == "NO"
// intersection(interval1: (-3, -1), interval2: (-5, 5)) == "YES"
func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    // Write your code here
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    return "YES"
}
<|file_separator|>```
 // XCTAssertTrue failed

func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    let start = max(interval1.0, interval2.0)
    let end = min(interval1.1, interval2.1)
    if end - start == 1 {
        return "YES"
    }
    return "NO"
}
```swift
// You are given two intervals,
// where each interval is a pair of integers. For example, interval = (start, end) = (1, 2).
// The given intervals are closed which means that the interval (start, end)
// includes both start and end.
// For each given interval, it is assumed that its start is less or equal its end.
// Your task is to determine whether the length of intersection of these two 
// intervals is a prime number.
// Example, the intersection of the intervals (1, 3), (2, 4) is (2, 3)
// which its length is 1, which not a prime number.
// If the length of the intersection is a prime number, return "YES",
// otherwise, return "NO".
// If the two intervals don't intersect, return "NO".
// [input/output] samples:
// intersection(interval1: (1, 2), interval2: (2, 3)) == "NO"
// intersection(interval1: (-1, 1), interval2: (0, 4)) == "NO"
// intersection(interval1: (-3, -1), interval2: (-5, 5)) == "YES"
func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    let start = max(interval1.0, interval2.0)
    let end = min(interval1.1, interval2.1)
    if end - start == 1 {
        return "YES"
    }
    return "NO"
}<|file_separator|>```
 // XCTAssertTrue failed

func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    let start = max(interval1.0, interval2.0)
    let end = min(interval1.1, interval2.1)
    if end - start == 1 {
        return "YES"
    }
    return "NO"
}
```swift
// You are given two intervals,
// where each interval is a pair of integers. For example, interval = (start, end) = (1, 2).
// The given intervals are closed which means that the interval (start, end)
// includes both start and end.
// For each given interval, it is assumed that its start is less or equal its end.
// Your task is to determine whether the length of intersection of these two 
// intervals is a prime number.
// Example, the intersection of the intervals (1, 3), (2, 4) is (2, 3)
// which its length is 1, which not a prime number.
// If the length of the intersection is a prime number, return "YES",
// otherwise, return "NO".
// If the two intervals don't intersect, return "NO".
// [input/output] samples:
// intersection(interval1: (1, 2), interval2: (2, 3)) == "NO"
// intersection(interval1: (-1, 1), interval2: (0, 4)) == "NO"
// intersection(interval1: (-3, -1), interval2: (-5, 5)) == "YES"
func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    let start = max(interval1.0, interval2.0)
    let end = min(interval1.1, interval2.1)
    if end - start == 1 {
        return "YES"
    }
    return "NO"
}<|file_separator|>```
 // XCTAssertTrue failed

func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    let (start1, end1) = interval1
    let (start2, end2) = interval2
    if start1 > end1 || start2 > end2 {
        return "NO"
    }
    if start1 > start2 {
        return "NO"
    }
    if end1 < start2 {
        return "NO"
    }
    if end1 == start2 {
        return "YES"
    }
    if end1 > start2 {
        return "YES"
    }
    return "NO"
}
```swift
// You are given two intervals,
// where each interval is a pair of integers. For example, interval = (start, end) = (1, 2).
// The given intervals are closed which means that the interval (start, end)
// includes both start and end.
// For each given interval, it is assumed that its start is less or equal its end.
// Your task is to determine whether the length of intersection of these two 
// intervals is a prime number.
// Example, the intersection of the intervals (1, 3), (2, 4) is (2, 3)
// which its length is 1, which not a prime number.
// If the length of the intersection is a prime number, return "YES",
// otherwise, return "NO".
// If the two intervals don't intersect, return "NO".
// [input/output] samples:
// intersection(interval1: (1, 2), interval2: (2, 3)) == "NO"
// intersection(interval1: (-1, 1), interval2: (0, 4)) == "NO"
// intersection(interval1: (-3, -1), interval2: (-5, 5)) == "YES"
func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    let (start1, end1) = interval1
    let (start2, end2) = interval2
    if start1 > end1 || start2 > end2 {
        return "NO"
    }
    if start1 > start2 {
        return "NO"
    }
    if end1 < start2 {
        return "NO"
    }
    if end1 == start2 {
        return "YES"
    }
    if end1 > start2 {
        return "YES"
    }
    return "NO"
}
<|file_separator|>
 // XCTAssertTrue failed

```swift
// You are given two intervals,
// where each interval is a pair of integers. For example, interval = (start, end) = (1, 2).
// The given intervals are closed which means that the interval (start, end)
// includes both start and end.
// For each given interval, it is assumed that its start is less or equal its end.
// Your task is to determine whether the length of intersection of these two 
// intervals is a prime number.
// Example, the intersection of the intervals (1, 3), (2, 4) is (2, 3)
// which its length is 1, which not a prime number.
// If the length of the intersection is a prime number, return "YES",
// otherwise, return "NO".
// If the two intervals don't intersect, return "NO".
// [input/output] samples:
// intersection(interval1: (1, 2), interval2: (2, 3)) == "NO"
// intersection(interval1: (-1, 1), interval2: (0, 4)) == "NO"
// intersection(interval1: (-3, -1), interval2: (-5, 5)) == "YES"
func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    let (start1, end1) = interval1
    let (start2, end2) = interval2
    if start1 > end1 || start2 > end2 {
        return "NO"
    }
    let start = max(start1, start2)
    let end = min(end1, end2)
    if end < start {
        return "NO"
    }
    if end - start == 1 {
        return "NO"
    }
    if end - start == 2 {
        return "YES"
    }
    if end - start == 3 {
        return "NO"
    }
    if end - start == 4 {
        return "YES"
    }
    if end - start == 5 {
        return "NO"
    }
    if end - start == 6 {
        return "YES"
    }
    if end - start == 7 {
        return "NO"
    }
    if end - start == 8 {
        return "YES"
    }
    if end - start == 9 {
        return "NO"
    }
    if end - start == 10 {
        return "YES"
    }
    if end - start == 11 {
        return "NO"
    }
    if end - start == 12 {
        return "YES"
    }
    if end - start == 13 {
        return "NO"
    }
    if end - start == 14 {
        return "YES"
    }
    if end - start == 15 {
        return "NO"
    }
    if end - start == 16 {
        return "YES"
    }
    if end - start == 17 {
        return "NO"
    }
    if end - start == 18 {
        return "YES"
    }
    if end - start == 19 {
        return "NO"
    }
    if end - start == 20 {
        return "YES"
    }
    if end - start == 21 {
        return "NO"
    }
    if end - start == 22 {
        return "YES"
    }
    if end - start == 23 {
        return "NO"
    }
    if end - start == 24 {
        return "YES"
    }
    if end - start == 25 {
        return "NO"
    }
    if end - start == 26 {
        return "YES"
    }
    if end - start == 27 {
        return "NO"
    }
    if end - start == 28 {
        return "YES"
    }
    if end - start == 29 {
        return "NO"
    }
    if end - start == 30 {
        return "YES"
    }
    if end - start == 31 {
        return "NO"
    }
    if end - start == 32 {
        return "YES"
    }
    if end - start == 33 {
        return "NO"
    }
    if end - start == 34 {
        return "YES"
    }
    if end - start == 35 {
        return "NO"
    }
    if end - start == 36 {
        return "YES"
    }
    if end - start == 37 {
        return "NO"
    }
    if end - start == 38 {
        return "YES"
    }
    if end - start == 39 {
        return "NO"
    }
    if end - start == 40 {
        return "YES"
    }
    if end - start == 41 {
        return "NO"
    }
    if end - start == 42 {
        return "YES"
    }
    if end - start == 43 {
        return "NO"
    }
    if end - start == 44 {
        return "YES"
    }
    if end - start == 45 {
        return "NO"
    }
    if end - start == 46 {
        return "YES"
    }
    if end - start == 47 {
        return "NO"
    }
XCTAssertTrue(intersection(interval1: (1, 2), interval2: (2, 3)) == "NO") // cannot find 'intersection' in scope
XCTAssertTrue(intersection(interval1: (-1, 1), interval2: (0, 4)) == "NO") // cannot find 'intersection' in scope
XCTAssertTrue(intersection(interval1: (-3, -1), interval2: (-5, 5)) == "YES") // cannot find 'intersection' in scope
XCTAssertTrue(intersection(interval1: (-2, 2), interval2: (-4, 0)) == "YES") // cannot find 'intersection' in scope
XCTAssertTrue(intersection(interval1: (-11, 2), interval2: (-1, -1)) == "NO") // cannot find 'intersection' in scope
XCTAssertTrue(intersection(interval1: (1, 2), interval2: (3, 5)) == "NO") // cannot find 'intersection' in scope
XCTAssertTrue(intersection(interval1: (1, 2), interval2: (1, 2)) == "NO") // cannot find 'intersection' in scope
XCTAssertTrue(intersection(interval1: (-2, -2), interval2: (-3, -2)) == "NO") // cannot find 'intersection' in scope

func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    // write your code here
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    let start = max(interval1.0, interval2.0)
    let end = min(interval1.1, interval2.1)
    if end - start == 1 {
        return "YES"
    }
    if end - start == 2 {
        return "NO"
    }
    return "YES"
}
```swift
// You are given two intervals,
// where each interval is a pair of integers. For example, interval = (start, end) = (1, 2).
// The given intervals are closed which means that the interval (start, end)
// includes both start and end.
// For each given interval, it is assumed that its start is less or equal its end.
// Your task is to determine whether the length of intersection of these two 
// intervals is a prime number.
// Example, the intersection of the intervals (1, 3), (2, 4) is (2, 3)
// which its length is 1, which not a prime number.
// If the length of the intersection is a prime number, return "YES",
// otherwise, return "NO".
// If the two intervals don't intersect, return "NO".
// [input/output] samples:
// intersection(interval1: (1, 2), interval2: (2, 3)) == "NO"
// intersection(interval1: (-1, 1), interval2: (0, 4)) == "NO"
// intersection(interval1: (-3, -1), interval2: (-5, 5)) == "YES"
func intersection(interval1: (Int, Int), interval2: (Int, Int)) -> String {
    // write your code here
    if interval1.0 > interval2.1 || interval1.1 < interval2.0 {
        return "NO"
    }
    let start = max(interval1.0, interval2.0)
    let end = min(interval1.1, interval2.1)
    if end - start == 1 {
        return "YES"
    }
    if end - start == 2 {
        return "NO"
    }
    return "YES"
}
<|file_separator|>```
 // XCTAssertTrue failed

func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var sum = 0
    var product = 1
    for i in arr {
        if i == 0 {
            return nil
        }
        if i < 0 {
            product *= -1
        }
        sum += i * product
    }
    return sum
}
```swift
// You are given an array arr of integers and you need to return
// sum of magnitudes of integers multiplied by product of all signs
// of each number in the array, represented by 1, -1 or 0.
// Note: return nil for empty arr.
// Example:
// prodSigns(arr: [1, 2, 2, -4]) == 9
// prodSigns(arr: [0, 1]) == 0
// prodSigns(arr: [] as [Int]) == nil
func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var sum = 0
    var product = 1
    for i in arr {
        if i == 0 {
            return nil
        }
        if i < 0 {
            product *= -1
        }
        sum += i * product
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var sum = 0
    var product = 1
    for i in 0..<arr.count {
        if arr[i] == 0 {
            return 0
        }
        product *= arr[i]
    }
    for i in 0..<arr.count {
        sum += arr[i] * product
    }
    return sum
}
```swift
// You are given an array arr of integers and you need to return
// sum of magnitudes of integers multiplied by product of all signs
// of each number in the array, represented by 1, -1 or 0.
// Note: return nil for empty arr.
// Example:
// prodSigns(arr: [1, 2, 2, -4]) == 9
// prodSigns(arr: [0, 1]) == 0
// prodSigns(arr: [] as [Int]) == nil
func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var sum = 0
    var product = 1
    for i in 0..<arr.count {
        if arr[i] == 0 {
            return 0
        }
        product *= arr[i]
    }
    for i in 0..<arr.count {
        sum += arr[i] * product
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var sum = 0
    var product = 1
    for i in 0..<arr.count {
        if arr[i] == 0 {
            return 0
        }
        product *= arr[i]
    }
    for i in 0..<arr.count {
        sum += arr[i] * product
    }
    return sum
}
```swift
// You are given an array arr of integers and you need to return
// sum of magnitudes of integers multiplied by product of all signs
// of each number in the array, represented by 1, -1 or 0.
// Note: return nil for empty arr.
// Example:
// prodSigns(arr: [1, 2, 2, -4]) == 9
// prodSigns(arr: [0, 1]) == 0
// prodSigns(arr: [] as [Int]) == nil
func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var sum = 0
    var product = 1
    for i in 0..<arr.count {
        if arr[i] == 0 {
            return 0
        }
        product *= arr[i]
    }
    for i in 0..<arr.count {
        sum += arr[i] * product
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    
    var result = 0
    var sign = 1
    
    for num in arr {
        result += num * sign
        sign *= -1
    }
    
    return result
}
```swift
// You are given an array arr of integers and you need to return
// sum of magnitudes of integers multiplied by product of all signs
// of each number in the array, represented by 1, -1 or 0.
// Note: return nil for empty arr.
// Example:
// prodSigns(arr: [1, 2, 2, -4]) == 9
// prodSigns(arr: [0, 1]) == 0
// prodSigns(arr: [] as [Int]) == nil
func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    
    var result = 0
    var sign = 1
    
    for num in arr {
        result += num * sign
        sign *= -1
    }
    
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var sum = 0
    var product = 1
    for i in 0..<arr.count {
        if arr[i] == 0 {
            sum += 0
        } else {
            product *= arr[i]
            if arr[i] < 0 {
                sum += product
            } else {
                sum -= product
            }
        }
    }
    return sum
}
```swift
// You are given an array arr of integers and you need to return
// sum of magnitudes of integers multiplied by product of all signs
// of each number in the array, represented by 1, -1 or 0.
// Note: return nil for empty arr.
// Example:
// prodSigns(arr: [1, 2, 2, -4]) == 9
// prodSigns(arr: [0, 1]) == 0
// prodSigns(arr: [] as [Int]) == nil
func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var sum = 0
    var product = 1
    for i in 0..<arr.count {
        if arr[i] == 0 {
            sum += 0
        } else {
            product *= arr[i]
            if arr[i] < 0 {
                sum += product
            } else {
                sum -= product
            }
        }
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var result = 0
    var sign = 1
    for i in 0..<arr.count {
        if arr[i] == 0 {
            sign = 0
        } else {
            result += sign * arr[i]
            sign *= -1
        }
    }
    return result
}
```swift
// You are given an array arr of integers and you need to return
// sum of magnitudes of integers multiplied by product of all signs
// of each number in the array, represented by 1, -1 or 0.
// Note: return nil for empty arr.
// Example:
// prodSigns(arr: [1, 2, 2, -4]) == 9
// prodSigns(arr: [0, 1]) == 0
// prodSigns(arr: [] as [Int]) == nil
func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var result = 0
    var sign = 1
    for i in 0..<arr.count {
        if arr[i] == 0 {
            sign = 0
        } else {
            result += sign * arr[i]
            sign *= -1
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var result = 1
    for i in arr {
        result *= i
    }
    var sum = 0
    for i in arr {
        sum += i * result
    }
    return sum
}
```swift
// You are given an array arr of integers and you need to return
// sum of magnitudes of integers multiplied by product of all signs
// of each number in the array, represented by 1, -1 or 0.
// Note: return nil for empty arr.
// Example:
// prodSigns(arr: [1, 2, 2, -4]) == 9
// prodSigns(arr: [0, 1]) == 0
// prodSigns(arr: [] as [Int]) == nil
func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var result = 1
    for i in arr {
        result *= i
    }
    var sum = 0
    for i in arr {
        sum += i * result
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var result = 1
    for i in arr {
        result *= i
    }
    var sum = 0
    for i in arr {
        sum += i * result
    }
    return sum
}
```swift
// You are given an array arr of integers and you need to return
// sum of magnitudes of integers multiplied by product of all signs
// of each number in the array, represented by 1, -1 or 0.
// Note: return nil for empty arr.
// Example:
// prodSigns(arr: [1, 2, 2, -4]) == 9
// prodSigns(arr: [0, 1]) == 0
// prodSigns(arr: [] as [Int]) == nil
func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var result = 1
    for i in arr {
        result *= i
    }
    var sum = 0
    for i in arr {
        sum += i * result
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var sum = 0
    var product = 1
    for i in arr {
        if i == 0 {
            return 0
        }
        product *= i
    }
    for i in arr {
        sum += i * product
    }
    return sum
}
```swift
// You are given an array arr of integers and you need to return
// sum of magnitudes of integers multiplied by product of all signs
// of each number in the array, represented by 1, -1 or 0.
// Note: return nil for empty arr.
// Example:
// prodSigns(arr: [1, 2, 2, -4]) == 9
// prodSigns(arr: [0, 1]) == 0
// prodSigns(arr: [] as [Int]) == nil
func prodSigns(arr: [Int]) -> Int? {
    if arr.isEmpty {
        return nil
    }
    var sum = 0
    var product = 1
    for i in arr {
        if i == 0 {
            return 0
        }
        product *= i
    }
    for i in arr {
        sum += i * product
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func prodSigns(arr: [Int]) -> Int? {
    if arr.count == 0 {
        return nil
    }
    
    var sum = 0
    var product = 1
    var sign = 1
    
    for i in 0..<arr.count {
        if arr[i] == 0 {
            sign = 0
        } else {
            product *= arr[i]
        }
    }
    
    for i in 0..<arr.count {
        if arr[i] == 0 {
            sign = 0
        } else {
            sum += arr[i] * sign
        }
    }
    
    return sum
}
```swift
// You are given an array arr of integers and you need to return
// sum of magnitudes of integers multiplied by product of all signs
// of each number in the array, represented by 1, -1 or 0.
// Note: return nil for empty arr.
// Example:
// prodSigns(arr: [1, 2, 2, -4]) == 9
// prodSigns(arr: [0, 1]) == 0
// prodSigns(arr: [] as [Int]) == nil
func prodSigns(arr: [Int]) -> Int? {
    if arr.count == 0 {
        return nil
    }
    
    var sum = 0
    var product = 1
    var sign = 1
    
    for i in 0..<arr.count {
        if arr[i] == 0 {
            sign = 0
        } else {
            product *= arr[i]
        }
    }
    
    for i in 0..<arr.count {
        if arr[i] == 0 {
            sign = 0
        } else {
            sum += arr[i] * sign
        }
    }
    
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func minPath(grid: [[Int]], k: Int) -> [Int] {
    // Write your code here
}
```swift
// Given a grid with N rows and N columns (N >= 2) and a positive integer k, 
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in each step you can move to any of the neighbor cells,
// in other words, you can go to cells which share an edge with you current
// cell.
// Please note that a path of length k means visiting exactly k cells (not
// necessarily distinct).
// You CANNOT go off the grid.
// A path A (of length k) is considered less than a path B (of length k) if
// after making the ordered arrays of the values on the cells that A and B go
// through (let's call them lst_A and lst_B), lst_A is lexicographically less
// than lst_B, in other words, there exist an integer index i (1 <= i <= k)
// such that lst_A[i] < lst_B[i] and for any j (1 <= j < i) we have
// lst_A[j] = lst_B[j].
// It is guaranteed that the answer is unique.
// Return an ordered array of the values on the cells that the minimum path go through.
// Examples:    
// minPath(grid: [[1, 2, 3], [4, 5, 6], [7, 8, 9]], k: 3) == [1, 2, 1]
// minPath(grid: [[5, 9, 3], [4, 1, 6], [7, 8, 2]], k: 1) == [1]
func minPath(grid: [[Int]], k: Int) -> [Int] {
    // Write your code here
}
<|file_separator|>
} // missing return in global function expected to return '[Int]'

func minPath(grid: [[Int]], k: Int) -> [Int] {
    var result = [Int]()
    var visited = [[Bool]](repeating: [Bool](repeating: false, count: grid[0].count), count: grid.count)
    var path = [Int]()
    var current = (0, 0)
    var pathLength = 0
    var minPath = [Int]()
    var minPathLength = Int.max
    var minPathIndex = -1
    
    while pathLength < k {
        if current.0 < 0 || current.0 >= grid.count || current.1 < 0 || current.1 >= grid[0].count || visited[current.0][current.1] {
            if minPathLength < minPathLength {
                minPath = path
                minPathLength = pathLength
                minPathIndex = path.count - 1
            }
            path.removeLast()
            pathLength -= 1
            current = path.last!
            visited[current.0][current.1] = false
        } else {
            visited[current.0][current.1] = true
            path.append(grid[current.0][current.1])
            pathLength += 1
            current = (current.0 + 1, current.1)
        }
    }
    
    return minPath
}
```swift
// Given a grid with N rows and N columns (N >= 2) and a positive integer k, 
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in each step you can move to any of the neighbor cells,
// in other words, you can go to cells which share an edge with you current
// cell.
// Please note that a path of length k means visiting exactly k cells (not
// necessarily distinct).
// You CANNOT go off the grid.
// A path A (of length k) is considered less than a path B (of length k) if
// after making the ordered arrays of the values on the cells that A and B go
// through (let's call them lst_A and lst_B), lst_A is lexicographically less
// than lst_B, in other words, there exist an integer index i (1 <= i <= k)
// such that lst_A[i] < lst_B[i] and for any j (1 <= j < i) we have
// lst_A[j] = lst_B[j].
// It is guaranteed that the answer is unique.
// Return an ordered array of the values on the cells that the minimum path go through.
// Examples:    
// minPath(grid: [[1, 2, 3], [4, 5, 6], [7, 8, 9]], k: 3) == [1, 2, 1]
// minPath(grid: [[5, 9, 3], [4, 1, 6], [7, 8, 2]], k: 1) == [1]
func minPath(grid: [[Int]], k: Int) -> [Int] {
    var result = [Int]()
    var visited = [[Bool]](repeating: [Bool](repeating: false, count: grid[0].count), count: grid.count)
    var path = [Int]()
    var current = (0, 0)
    var pathLength = 0
    var minPath = [Int]()
    var minPathLength = Int.max
    var minPathIndex = -1
    
    while pathLength < k {
        if current.0 < 0 || current.0 >= grid.count || current.1 < 0 || current.1 >= grid[0].count || visited[current.0][current.1] {
            if minPathLength < minPathLength {
                minPath = path
                minPathLength = pathLength
                minPathIndex = path.count - 1
            }
            path.removeLast()
            pathLength -= 1
            current = path.last!
            visited[current.0][current.1] = false
        } else {
            visited[current.0][current.1] = true
            path.append(grid[current.0][current.1])
            pathLength += 1
            current = (current.0 + 1, current.1)
        }
    }
    
    return minPath
}
<|file_separator|>
current = path.last! // cannot assign value of type 'Int' to type '(Int, Int)'

func minPath(grid: [[Int]], k: Int) -> [Int] {
    var result = [Int]()
    var visited = [[Bool]](repeating: [Bool](repeating: false, count: grid[0].count), count: grid.count)
    var path = [Int]()
    var minPath = [Int]()
    var minPathLength = Int.max
    
    func dfs(row: Int, col: Int, path: [Int], minPath: [Int], minPathLength: Int) {
        if path.count == k {
            if minPathLength > minPath.count {
                minPathLength = minPath.count
                minPath = path
            }
            return
        }
        
        if row < 0 || row >= grid.count || col < 0 || col >= grid[0].count || visited[row][col] {
            return
        }
        
        visited[row][col] = true
        path.append(grid[row][col])
        dfs(row: row + 1, col: col, path: path, minPath: minPath, minPathLength: minPathLength)
        dfs(row: row - 1, col: col, path: path, minPath: minPath, minPathLength: minPathLength)
        dfs(row: row, col: col + 1, path: path, minPath: minPath, minPathLength: minPathLength)
        dfs(row: row, col: col - 1, path: path, minPath: minPath, minPathLength: minPathLength)
        visited[row][col] = false
        path.removeLast()
    }
    
    dfs(row: 0, col: 0, path: path, minPath: minPath, minPathLength: minPathLength)
    
    return minPath
}
```swift
// Given a grid with N rows and N columns (N >= 2) and a positive integer k, 
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in each step you can move to any of the neighbor cells,
// in other words, you can go to cells which share an edge with you current
// cell.
// Please note that a path of length k means visiting exactly k cells (not
// necessarily distinct).
// You CANNOT go off the grid.
// A path A (of length k) is considered less than a path B (of length k) if
// after making the ordered arrays of the values on the cells that A and B go
// through (let's call them lst_A and lst_B), lst_A is lexicographically less
// than lst_B, in other words, there exist an integer index i (1 <= i <= k)
// such that lst_A[i] < lst_B[i] and for any j (1 <= j < i) we have
// lst_A[j] = lst_B[j].
// It is guaranteed that the answer is unique.
// Return an ordered array of the values on the cells that the minimum path go through.
// Examples:    
// minPath(grid: [[1, 2, 3], [4, 5, 6], [7, 8, 9]], k: 3) == [1, 2, 1]
// minPath(grid: [[5, 9, 3], [4, 1, 6], [7, 8, 2]], k: 1) == [1]
func minPath(grid: [[Int]], k: Int) -> [Int] {
    var result = [Int]()
    var visited = [[Bool]](repeating: [Bool](repeating: false, count: grid[0].count), count: grid.count)
    var path = [Int]()
    var minPath = [Int]()
    var minPathLength = Int.max
    
    func dfs(row: Int, col: Int, path: [Int], minPath: [Int], minPathLength: Int) {
        if path.count == k {
            if minPathLength > minPath.count {
                minPathLength = minPath.count
                minPath = path
            }
            return
        }
        
        if row < 0 || row >= grid.count || col < 0 || col >= grid[0].count || visited[row][col] {
            return
        }
        
        visited[row][col] = true
        path.append(grid[row][col])
        dfs(row: row + 1, col: col, path: path, minPath: minPath, minPathLength: minPathLength)
        dfs(row: row - 1, col: col, path: path, minPath: minPath, minPathLength: minPathLength)
        dfs(row: row, col: col + 1, path: path, minPath: minPath, minPathLength: minPathLength)
        dfs(row: row, col: col - 1, path: path, minPath: minPath, minPathLength: minPathLength)
        visited[row][col] = false
        path.removeLast()
    }
    
    dfs(row: 0, col: 0, path: path, minPath: minPath, minPathLength: minPathLength)
    
    return minPath
}
<|file_separator|>
minPathLength = minPath.count // cannot assign to value: 'minPathLength' is a 'let' constant
minPath = path // cannot assign to value: 'minPath' is a 'let' constant
path.append(grid[row][col]) // cannot use mutating member on immutable value: 'path' is a 'let' constant
path.removeLast() // cannot use mutating member on immutable value: 'path' is a 'let' constant

func minPath(grid: [[Int]], k: Int) -> [Int] {
    // Write your code here
}
```swift
// Given a grid with N rows and N columns (N >= 2) and a positive integer k, 
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in each step you can move to any of the neighbor cells,
// in other words, you can go to cells which share an edge with you current
// cell.
// Please note that a path of length k means visiting exactly k cells (not
// necessarily distinct).
// You CANNOT go off the grid.
// A path A (of length k) is considered less than a path B (of length k) if
// after making the ordered arrays of the values on the cells that A and B go
// through (let's call them lst_A and lst_B), lst_A is lexicographically less
// than lst_B, in other words, there exist an integer index i (1 <= i <= k)
// such that lst_A[i] < lst_B[i] and for any j (1 <= j < i) we have
// lst_A[j] = lst_B[j].
// It is guaranteed that the answer is unique.
// Return an ordered array of the values on the cells that the minimum path go through.
// Examples:    
// minPath(grid: [[1, 2, 3], [4, 5, 6], [7, 8, 9]], k: 3) == [1, 2, 1]
// minPath(grid: [[5, 9, 3], [4, 1, 6], [7, 8, 2]], k: 1) == [1]
func minPath(grid: [[Int]], k: Int) -> [Int] {
    // Write your code here
}
<|file_separator|>
} // missing return in global function expected to return '[Int]'

func minPath(grid: [[Int]], k: Int) -> [Int] {
    var result = [Int]()
    var visited = Array(repeating: Array(repeating: false, count: grid.count), count: grid.count)
    var path = [Int]()
    var minPath = [Int]()
    var minPathLength = Int.max
    
    func dfs(x: Int, y: Int, length: Int) {
        if length > k {
            return
        }
        if length == k {
            if length < minPathLength {
                minPathLength = length
                minPath = path
            }
            return
        }
        if x < 0 || x >= grid.count || y < 0 || y >= grid.count || visited[x][y] {
            return
        }
        visited[x][y] = true
        path.append(grid[x][y])
        dfs(x: x + 1, y: y, length: length + 1)
        dfs(x: x - 1, y: y, length: length + 1)
        dfs(x: x, y: y + 1, length: length + 1)
        dfs(x: x, y: y - 1, length: length + 1)
        visited[x][y] = false
        path.removeLast()
    }
    
    dfs(x: 0, y: 0, length: 0)
    
    for i in 0..<minPath.count {
        result.append(minPath[i])
    }
    
    return result
}
```swift
// Given a grid with N rows and N columns (N >= 2) and a positive integer k, 
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in each step you can move to any of the neighbor cells,
// in other words, you can go to cells which share an edge with you current
// cell.
// Please note that a path of length k means visiting exactly k cells (not
// necessarily distinct).
// You CANNOT go off the grid.
// A path A (of length k) is considered less than a path B (of length k) if
// after making the ordered arrays of the values on the cells that A and B go
// through (let's call them lst_A and lst_B), lst_A is lexicographically less
// than lst_B, in other words, there exist an integer index i (1 <= i <= k)
// such that lst_A[i] < lst_B[i] and for any j (1 <= j < i) we have
// lst_A[j] = lst_B[j].
// It is guaranteed that the answer is unique.
// Return an ordered array of the values on the cells that the minimum path go through.
// Examples:    
// minPath(grid: [[1, 2, 3], [4, 5, 6], [7, 8, 9]], k: 3) == [1, 2, 1]
// minPath(grid: [[5, 9, 3], [4, 1, 6], [7, 8, 2]], k: 1) == [1]
func minPath(grid: [[Int]], k: Int) -> [Int] {
    var result = [Int]()
    var visited = Array(repeating: Array(repeating: false, count: grid.count), count: grid.count)
    var path = [Int]()
    var minPath = [Int]()
    var minPathLength = Int.max
    
    func dfs(x: Int, y: Int, length: Int) {
        if length > k {
            return
        }
        if length == k {
            if length < minPathLength {
                minPathLength = length
                minPath = path
            }
            return
        }
        if x < 0 || x >= grid.count || y < 0 || y >= grid.count || visited[x][y] {
            return
        }
        visited[x][y] = true
        path.append(grid[x][y])
        dfs(x: x + 1, y: y, length: length + 1)
        dfs(x: x - 1, y: y, length: length + 1)
        dfs(x: x, y: y + 1, length: length + 1)
        dfs(x: x, y: y - 1, length: length + 1)
        visited[x][y] = false
        path.removeLast()
    }
    
    dfs(x: 0, y: 0, length: 0)
    
    for i in 0..<minPath.count {
        result.append(minPath[i])
    }
    
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func minPath(grid: [[Int]], k: Int) -> [Int] {
    // Write your code here
    var grid = grid
    var path = [Int]()
    var visited = Array(repeating: Array(repeating: false, count: grid.count), count: grid.count)
    var minPath = [Int]()
    var minPathLength = Int.max
    var minPathIndex = 0
    
    func dfs(row: Int, col: Int, path: [Int], visited: [[Bool]]) {
        if path.count == k {
            if path.count < minPathLength {
                minPathLength = path.count
                minPathIndex = path.count
                minPath = path
            }
            return
        }
        
        if row < 0 || row >= grid.count || col < 0 || col >= grid[0].count || visited[row][col] {
            return
        }
        
        visited[row][col] = true
        path.append(grid[row][col])
        
        dfs(row: row + 1, col: col, path: path, visited: visited)
        dfs(row: row - 1, col: col, path: path, visited: visited)
        dfs(row: row, col: col + 1, path: path, visited: visited)
        dfs(row: row, col: col - 1, path: path, visited: visited)
        
        path.removeLast()
        visited[row][col] = false
    }
    
    dfs(row: 0, col: 0, path: path, visited: visited)
    
    return minPath
}
```swift
// Given a grid with N rows and N columns (N >= 2) and a positive integer k, 
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in each step you can move to any of the neighbor cells,
// in other words, you can go to cells which share an edge with you current
// cell.
// Please note that a path of length k means visiting exactly k cells (not
// necessarily distinct).
// You CANNOT go off the grid.
// A path A (of length k) is considered less than a path B (of length k) if
// after making the ordered arrays of the values on the cells that A and B go
// through (let's call them lst_A and lst_B), lst_A is lexicographically less
// than lst_B, in other words, there exist an integer index i (1 <= i <= k)
// such that lst_A[i] < lst_B[i] and for any j (1 <= j < i) we have
// lst_A[j] = lst_B[j].
// It is guaranteed that the answer is unique.
// Return an ordered array of the values on the cells that the minimum path go through.
// Examples:    
// minPath(grid: [[1, 2, 3], [4, 5, 6], [7, 8, 9]], k: 3) == [1, 2, 1]
// minPath(grid: [[5, 9, 3], [4, 1, 6], [7, 8, 2]], k: 1) == [1]
func minPath(grid: [[Int]], k: Int) -> [Int] {
    // Write your code here
    var grid = grid
    var path = [Int]()
    var visited = Array(repeating: Array(repeating: false, count: grid.count), count: grid.count)
    var minPath = [Int]()
    var minPathLength = Int.max
    var minPathIndex = 0
    
    func dfs(row: Int, col: Int, path: [Int], visited: [[Bool]]) {
        if path.count == k {
            if path.count < minPathLength {
                minPathLength = path.count
                minPathIndex = path.count
                minPath = path
            }
            return
        }
        
        if row < 0 || row >= grid.count || col < 0 || col >= grid[0].count || visited[row][col] {
            return
        }
        
        visited[row][col] = true
        path.append(grid[row][col])
        
        dfs(row: row + 1, col: col, path: path, visited: visited)
        dfs(row: row - 1, col: col, path: path, visited: visited)
        dfs(row: row, col: col + 1, path: path, visited: visited)
        dfs(row: row, col: col - 1, path: path, visited: visited)
        
        path.removeLast()
        visited[row][col] = false
    }
    
    dfs(row: 0, col: 0, path: path, visited: visited)
    
    return minPath
}

<|file_separator|>```
visited[row][col] = true // cannot assign through subscript: 'visited' is a 'let' constant
path.append(grid[row][col]) // cannot use mutating member on immutable value: 'path' is a 'let' constant
path.removeLast() // cannot use mutating member on immutable value: 'path' is a 'let' constant
visited[row][col] = false // cannot assign through subscript: 'visited' is a 'let' constant

func minPath(grid: [[Int]], k: Int) -> [Int] {
    // Write your code here
    var result = [Int]()
    var visited = [[Bool]](repeating: [Bool](repeating: false, count: grid[0].count), count: grid.count)
    var path = [Int]()
    var minPath = [Int]()
    var minPathLength = Int.max
    
    func dfs(x: Int, y: Int, length: Int) {
        if length > k {
            return
        }
        if length == k {
            if length < minPathLength {
                minPathLength = length
                minPath = path
            }
            return
        }
        
        if x < 0 || x >= grid.count || y < 0 || y >= grid[0].count || visited[x][y] {
            return
        }
        
        visited[x][y] = true
        path.append(grid[x][y])
        dfs(x: x + 1, y: y, length: length + 1)
        dfs(x: x - 1, y: y, length: length + 1)
        dfs(x: x, y: y + 1, length: length + 1)
        dfs(x: x, y: y - 1, length: length + 1)
        visited[x][y] = false
        path.removeLast()
    }
    
    dfs(x: 0, y: 0, length: 0)
    
    return minPath
}
```swift
// Given a grid with N rows and N columns (N >= 2) and a positive integer k, 
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in each step you can move to any of the neighbor cells,
// in other words, you can go to cells which share an edge with you current
// cell.
// Please note that a path of length k means visiting exactly k cells (not
// necessarily distinct).
// You CANNOT go off the grid.
// A path A (of length k) is considered less than a path B (of length k) if
// after making the ordered arrays of the values on the cells that A and B go
// through (let's call them lst_A and lst_B), lst_A is lexicographically less
// than lst_B, in other words, there exist an integer index i (1 <= i <= k)
// such that lst_A[i] < lst_B[i] and for any j (1 <= j < i) we have
// lst_A[j] = lst_B[j].
// It is guaranteed that the answer is unique.
// Return an ordered array of the values on the cells that the minimum path go through.
// Examples:    
// minPath(grid: [[1, 2, 3], [4, 5, 6], [7, 8, 9]], k: 3) == [1, 2, 1]
// minPath(grid: [[5, 9, 3], [4, 1, 6], [7, 8, 2]], k: 1) == [1]
func minPath(grid: [[Int]], k: Int) -> [Int] {
    // Write your code here
    var result = [Int]()
    var visited = [[Bool]](repeating: [Bool](repeating: false, count: grid[0].count), count: grid.count)
    var path = [Int]()
    var minPath = [Int]()
    var minPathLength = Int.max
    
    func dfs(x: Int, y: Int, length: Int) {
        if length > k {
            return
        }
        if length == k {
            if length < minPathLength {
                minPathLength = length
                minPath = path
            }
            return
        }
        
        if x < 0 || x >= grid.count || y < 0 || y >= grid[0].count || visited[x][y] {
            return
        }
        
        visited[x][y] = true
        path.append(grid[x][y])
        dfs(x: x + 1, y: y, length: length + 1)
        dfs(x: x - 1, y: y, length: length + 1)
        dfs(x: x, y: y + 1, length: length + 1)
        dfs(x: x, y: y - 1, length: length + 1)
        visited[x][y] = false
        path.removeLast()
    }
    
    dfs(x: 0, y: 0, length: 0)
    
    return minPath
}
<|file_separator|>
var result = [Int]() // initialization of variable 'result' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func minPath(grid: [[Int]], k: Int) -> [Int] {
    var grid = grid
    var k = k
    var path = [Int]()
    var visited = [[Bool]](repeating: [Bool](repeating: false, count: grid.count), count: grid.count)
    var minPath = [Int]()
    var minPathLen = Int.max
    
    func dfs(row: Int, col: Int, path: [Int], visited: [[Bool]]) {
        if k == 0 {
            if path.count < minPathLen {
                minPath = path
                minPathLen = path.count
            }
            return
        }
        
        if row < 0 || row >= grid.count || col < 0 || col >= grid[0].count || visited[row][col] {
            return
        }
        
        visited[row][col] = true
        path.append(grid[row][col])
        dfs(row: row - 1, col: col, path: path, visited: visited)
        dfs(row: row + 1, col: col, path: path, visited: visited)
        dfs(row: row, col: col - 1, path: path, visited: visited)
        dfs(row: row, col: col + 1, path: path, visited: visited)
        path.removeLast()
        visited[row][col] = false
    }
    
    dfs(row: 0, col: 0, path: path, visited: visited)
    
    return minPath
}
```swift
// Given a grid with N rows and N columns (N >= 2) and a positive integer k, 
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in each step you can move to any of the neighbor cells,
// in other words, you can go to cells which share an edge with you current
// cell.
// Please note that a path of length k means visiting exactly k cells (not
// necessarily distinct).
// You CANNOT go off the grid.
// A path A (of length k) is considered less than a path B (of length k) if
// after making the ordered arrays of the values on the cells that A and B go
// through (let's call them lst_A and lst_B), lst_A is lexicographically less
// than lst_B, in other words, there exist an integer index i (1 <= i <= k)
// such that lst_A[i] < lst_B[i] and for any j (1 <= j < i) we have
// lst_A[j] = lst_B[j].
// It is guaranteed that the answer is unique.
// Return an ordered array of the values on the cells that the minimum path go through.
// Examples:    
// minPath(grid: [[1, 2, 3], [4, 5, 6], [7, 8, 9]], k: 3) == [1, 2, 1]
// minPath(grid: [[5, 9, 3], [4, 1, 6], [7, 8, 2]], k: 1) == [1]
func minPath(grid: [[Int]], k: Int) -> [Int] {
    var grid = grid
    var k = k
    var path = [Int]()
    var visited = [[Bool]](repeating: [Bool](repeating: false, count: grid.count), count: grid.count)
    var minPath = [Int]()
    var minPathLen = Int.max
    
    func dfs(row: Int, col: Int, path: [Int], visited: [[Bool]]) {
        if k == 0 {
            if path.count < minPathLen {
                minPath = path
                minPathLen = path.count
            }
            return
        }
        
        if row < 0 || row >= grid.count || col < 0 || col >= grid[0].count || visited[row][col] {
            return
        }
        
        visited[row][col] = true
        path.append(grid[row][col])
        dfs(row: row - 1, col: col, path: path, visited: visited)
        dfs(row: row + 1, col: col, path: path, visited: visited)
        dfs(row: row, col: col - 1, path: path, visited: visited)
        dfs(row: row, col: col + 1, path: path, visited: visited)
        path.removeLast()
        visited[row][col] = false
    }
    
    dfs(row: 0, col: 0, path: path, visited: visited)
    
    return minPath
}
<|file_separator|>
visited[row][col] = true // cannot assign through subscript: 'visited' is a 'let' constant
path.append(grid[row][col]) // cannot use mutating member on immutable value: 'path' is a 'let' constant
path.removeLast() // cannot use mutating member on immutable value: 'path' is a 'let' constant
visited[row][col] = false // cannot assign through subscript: 'visited' is a 'let' constant

```swift
// Given a grid with N rows and N columns (N >= 2) and a positive integer k, 
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in each step you can move to any of the neighbor cells,
// in other words, you can go to cells which share an edge with you current
// cell.
// Please note that a path of length k means visiting exactly k cells (not
// necessarily distinct).
// You CANNOT go off the grid.
// A path A (of length k) is considered less than a path B (of length k) if
// after making the ordered arrays of the values on the cells that A and B go
// through (let's call them lst_A and lst_B), lst_A is lexicographically less
// than lst_B, in other words, there exist an integer index i (1 <= i <= k)
// such that lst_A[i] < lst_B[i] and for any j (1 <= j < i) we have
// lst_A[j] = lst_B[j].
// It is guaranteed that the answer is unique.
// Return an ordered array of the values on the cells that the minimum path go through.
// Examples:    
// minPath(grid: [[1, 2, 3], [4, 5, 6], [7, 8, 9]], k: 3) == [1, 2, 1]
// minPath(grid: [[5, 9, 3], [4, 1, 6], [7, 8, 2]], k: 1) == [1]
func minPath(grid: [[Int]], k: Int) -> [Int] {
    // Write your code here
    var grid = grid
    var path = [Int]()
    var visited = Array(repeating: Array(repeating: false, count: grid.count), count: grid.count)
    var minPath = Array(repeating: Array(repeating: 0, count: grid.count), count: grid.count)
    var minPathIndex = Array(repeating: Array(repeating: 0, count: grid.count), count: grid.count)
    var minPathIndexCount = 0
    var minPathIndexCountMax = 0
    var minPathIndexCountMaxIndex = 0
    var minPathIndexCountMaxIndexMax = 0
    var minPathIndexCountMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMax = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMax = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMax = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMax = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMax = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMax = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMax = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndex = 0
    var minPathIndexCountMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMaxIndexMax

```swift
// Given a grid with N rows and N columns (N >= 2) and a positive integer k, 
// each cell of the grid contains a value. Every integer in the range [1, N * N]
// inclusive appears exactly once on the cells of the grid.
// You have to find the minimum path of length k in the grid. You can start
// from any cell, and in each step you can move to any of the neighbor cells,
// in other words, you can go to cells which share an edge with you current
// cell.
// Please note that a path of length k means visiting exactly k cells (not
// necessarily distinct).
// You CANNOT go off the grid.
// A path A (of length k) is considered less than a path B (of length k) if
// after making the ordered arrays of the values on the cells that A and B go
// through (let's call them lst_A and lst_B), lst_A is lexicographically less
// than lst_B, in other words, there exist an integer index i (1 <= i <= k)
// such that lst_A[i] < lst_B[i] and for any j (1 <= j < i) we have
// lst_A[j] = lst_B[j].
// It is guaranteed that the answer is unique.
// Return an ordered array of the values on the cells that the minimum path go through.
// Examples:    
// minPath(grid: [[1, 2, 3], [4, 5, 6], [7, 8, 9]], k: 3) == [1, 2, 1]
// minPath(grid: [[5, 9, 3], [4, 1, 6], [7, 8, 2]], k: 1) == [1]
func minPath(grid: [[Int]], k: Int) -> [Int] {
    // Write your code here
    var result = [Int]()
    var visited = [[Bool]](repeating: [Bool](repeating: false, count: grid[0].count), count: grid.count)
    var path = [Int]()
    var current = 0
    var currentPath = [Int]()
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func tri(n: Int) -> [Int] {
    var arr = [Int]()
    arr.append(1)
    arr.append(1)
    arr.append(2)
    for i in 3...n {
        arr.append(arr[i-1] + arr[i-2] + arr[i-3])
    }
    return arr
}
```swift
// Everyone knows Fibonacci sequence, it was studied deeply by mathematicians in 
// the last couple centuries. However, what people don't know is Tribonacci sequence.
// Tribonacci sequence is defined by the recurrence:
// tri(1) = 3
// tri(n) = 1 + n / 2, if n is even.
// tri(n) =  tri(n - 1) + tri(n - 2) + tri(n + 1), if n is odd.
// For example:
// tri(2) = 1 + (2 / 2) = 2
// tri(4) = 3
// tri(3) = tri(2) + tri(1) + tri(4)
// = 2 + 3 + 3 = 8 
// You are given a non-negative integer number n, you have to a return an array of the 
// first n + 1 numbers of the Tribonacci sequence.
// Examples:
// tri(n: 3) == [1, 3, 2, 8]
func tri(n: Int) -> [Int] {
    var arr = [Int]()
    arr.append(1)
    arr.append(1)
    arr.append(2)
    for i in 3...n {
        arr.append(arr[i-1] + arr[i-2] + arr[i-3])
    }
    return arr
}
<|file_separator|>
 // XCTAssertTrue failed

func tri(n: Int) -> [Int] {
  var result = [Int]()
  for i in 0...n {
    if i == 0 {
      result.append(1)
    } else if i == 1 {
      result.append(1)
    } else if i == 2 {
      result.append(2)
    } else {
      result.append(result[i - 1] + result[i - 2] + result[i - 3])
    }
  }
  return result
}
```swift
// Everyone knows Fibonacci sequence, it was studied deeply by mathematicians in 
// the last couple centuries. However, what people don't know is Tribonacci sequence.
// Tribonacci sequence is defined by the recurrence:
// tri(1) = 3
// tri(n) = 1 + n / 2, if n is even.
// tri(n) =  tri(n - 1) + tri(n - 2) + tri(n + 1), if n is odd.
// For example:
// tri(2) = 1 + (2 / 2) = 2
// tri(4) = 3
// tri(3) = tri(2) + tri(1) + tri(4)
// = 2 + 3 + 3 = 8 
// You are given a non-negative integer number n, you have to a return an array of the 
// first n + 1 numbers of the Tribonacci sequence.
// Examples:
// tri(n: 3) == [1, 3, 2, 8]
func tri(n: Int) -> [Int] {
  var result = [Int]()
  for i in 0...n {
    if i == 0 {
      result.append(1)
    } else if i == 1 {
      result.append(1)
    } else if i == 2 {
      result.append(2)
    } else {
      result.append(result[i - 1] + result[i - 2] + result[i - 3])
    }
  }
  return result
}
<|file_separator|>
 // XCTAssertTrue failed

func tri(n: Int) -> [Int] {
  var arr = [Int]()
  if n == 0 {
    return arr
  }
  arr.append(1)
  if n == 1 {
    return arr
  }
  arr.append(1)
  if n == 2 {
    return arr
  }
  for i in 2...n {
    arr.append(arr[i - 1] + arr[i - 2] + arr[i - 3])
  }
  return arr
}
```swift
// Everyone knows Fibonacci sequence, it was studied deeply by mathematicians in 
// the last couple centuries. However, what people don't know is Tribonacci sequence.
// Tribonacci sequence is defined by the recurrence:
// tri(1) = 3
// tri(n) = 1 + n / 2, if n is even.
// tri(n) =  tri(n - 1) + tri(n - 2) + tri(n + 1), if n is odd.
// For example:
// tri(2) = 1 + (2 / 2) = 2
// tri(4) = 3
// tri(3) = tri(2) + tri(1) + tri(4)
// = 2 + 3 + 3 = 8 
// You are given a non-negative integer number n, you have to a return an array of the 
// first n + 1 numbers of the Tribonacci sequence.
// Examples:
// tri(n: 3) == [1, 3, 2, 8]
func tri(n: Int) -> [Int] {
  var arr = [Int]()
  if n == 0 {
    return arr
  }
  arr.append(1)
  if n == 1 {
    return arr
  }
  arr.append(1)
  if n == 2 {
    return arr
  }
  for i in 2...n {
    arr.append(arr[i - 1] + arr[i - 2] + arr[i - 3])
  }
  return arr
}
<|file_separator|>
 // Fatal error: Index out of range

func tri(n: Int) -> [Int] {
  var result = [Int]()
  for i in 0...n {
    if i == 0 {
      result.append(1)
    } else if i == 1 {
      result.append(1)
    } else if i == 2 {
      result.append(2)
    } else {
      result.append(result[i - 1] + result[i - 2] + result[i - 3])
    }
  }
  return result
}
```swift
// Everyone knows Fibonacci sequence, it was studied deeply by mathematicians in 
// the last couple centuries. However, what people don't know is Tribonacci sequence.
// Tribonacci sequence is defined by the recurrence:
// tri(1) = 3
// tri(n) = 1 + n / 2, if n is even.
// tri(n) =  tri(n - 1) + tri(n - 2) + tri(n + 1), if n is odd.
// For example:
// tri(2) = 1 + (2 / 2) = 2
// tri(4) = 3
// tri(3) = tri(2) + tri(1) + tri(4)
// = 2 + 3 + 3 = 8 
// You are given a non-negative integer number n, you have to a return an array of the 
// first n + 1 numbers of the Tribonacci sequence.
// Examples:
// tri(n: 3) == [1, 3, 2, 8]
func tri(n: Int) -> [Int] {
  var result = [Int]()
  for i in 0...n {
    if i == 0 {
      result.append(1)
    } else if i == 1 {
      result.append(1)
    } else if i == 2 {
      result.append(2)
    } else {
      result.append(result[i - 1] + result[i - 2] + result[i - 3])
    }
  }
  return result
}
<|file_separator|>
 // XCTAssertTrue failed

func tri(n: Int) -> [Int] {
    var result = [Int]()
    var a = 1
    var b = 1
    var c = 2
    var d = 3
    var e = 5
    var f = 8
    if n == 1 {
        result.append(a)
    } else if n == 2 {
        result.append(a)
        result.append(b)
    } else if n == 3 {
        result.append(a)
        result.append(b)
        result.append(c)
    } else {
        result.append(a)
        result.append(b)
        result.append(c)
        while result.count < n {
            result.append(e)
            e = a + b + c
            a = b
            b = c
            c = d
            d = e
        }
    }
    return result
}
```swift
// Everyone knows Fibonacci sequence, it was studied deeply by mathematicians in 
// the last couple centuries. However, what people don't know is Tribonacci sequence.
// Tribonacci sequence is defined by the recurrence:
// tri(1) = 3
// tri(n) = 1 + n / 2, if n is even.
// tri(n) =  tri(n - 1) + tri(n - 2) + tri(n + 1), if n is odd.
// For example:
// tri(2) = 1 + (2 / 2) = 2
// tri(4) = 3
// tri(3) = tri(2) + tri(1) + tri(4)
// = 2 + 3 + 3 = 8 
// You are given a non-negative integer number n, you have to a return an array of the 
// first n + 1 numbers of the Tribonacci sequence.
// Examples:
// tri(n: 3) == [1, 3, 2, 8]
func tri(n: Int) -> [Int] {
    var result = [Int]()
    var a = 1
    var b = 1
    var c = 2
    var d = 3
    var e = 5
    var f = 8
    if n == 1 {
        result.append(a)
    } else if n == 2 {
        result.append(a)
        result.append(b)
    } else if n == 3 {
        result.append(a)
        result.append(b)
        result.append(c)
    } else {
        result.append(a)
        result.append(b)
        result.append(c)
        while result.count < n {
            result.append(e)
            e = a + b + c
            a = b
            b = c
            c = d
            d = e
        }
    }
    return result
}
<|file_separator|>
var f = 8 // initialization of variable 'f' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func tri(n: Int) -> [Int] {
    var result = [Int]()
    result.append(1)
    result.append(1)
    result.append(1)
    for i in 3...n {
        result.append(result[i - 1] + result[i - 2] + result[i - 3])
    }
    return result
}
```swift
// Everyone knows Fibonacci sequence, it was studied deeply by mathematicians in 
// the last couple centuries. However, what people don't know is Tribonacci sequence.
// Tribonacci sequence is defined by the recurrence:
// tri(1) = 3
// tri(n) = 1 + n / 2, if n is even.
// tri(n) =  tri(n - 1) + tri(n - 2) + tri(n + 1), if n is odd.
// For example:
// tri(2) = 1 + (2 / 2) = 2
// tri(4) = 3
// tri(3) = tri(2) + tri(1) + tri(4)
// = 2 + 3 + 3 = 8 
// You are given a non-negative integer number n, you have to a return an array of the 
// first n + 1 numbers of the Tribonacci sequence.
// Examples:
// tri(n: 3) == [1, 3, 2, 8]
func tri(n: Int) -> [Int] {
    var result = [Int]()
    result.append(1)
    result.append(1)
    result.append(1)
    for i in 3...n {
        result.append(result[i - 1] + result[i - 2] + result[i - 3])
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func tri(n: Int) -> [Int] {
  var arr = [Int]()
  if n > 0 {
    arr.append(1)
    if n > 1 {
      arr.append(1)
      if n > 2 {
        for i in 3...n {
          if i % 2 == 0 {
            arr.append(arr[i - 2] + arr[i - 1] / 2)
          } else {
            arr.append(arr[i - 1] + arr[i - 2] + arr[i])
          }
        }
      }
    }
  }
  return arr
}
```swift
// Everyone knows Fibonacci sequence, it was studied deeply by mathematicians in 
// the last couple centuries. However, what people don't know is Tribonacci sequence.
// Tribonacci sequence is defined by the recurrence:
// tri(1) = 3
// tri(n) = 1 + n / 2, if n is even.
// tri(n) =  tri(n - 1) + tri(n - 2) + tri(n + 1), if n is odd.
// For example:
// tri(2) = 1 + (2 / 2) = 2
// tri(4) = 3
// tri(3) = tri(2) + tri(1) + tri(4)
// = 2 + 3 + 3 = 8 
// You are given a non-negative integer number n, you have to a return an array of the 
// first n + 1 numbers of the Tribonacci sequence.
// Examples:
// tri(n: 3) == [1, 3, 2, 8]
func tri(n: Int) -> [Int] {
  var arr = [Int]()
  if n > 0 {
    arr.append(1)
    if n > 1 {
      arr.append(1)
      if n > 2 {
        for i in 3...n {
          if i % 2 == 0 {
            arr.append(arr[i - 2] + arr[i - 1] / 2)
          } else {
            arr.append(arr[i - 1] + arr[i - 2] + arr[i])
          }
        }
      }
    }
  }
  return arr
}
<|file_separator|>
 // Fatal error: Index out of range

func tri(n: Int) -> [Int] {
    var result = [Int]()
    if n == 1 {
        result.append(1)
    } else if n == 2 {
        result.append(1)
        result.append(3)
    } else {
        result.append(1)
        result.append(3)
        result.append(2)
        for i in 3..<n {
            result.append(result[i - 1] + result[i - 2] + result[i - 3])
        }
    }
    return result
}
```swift
// Everyone knows Fibonacci sequence, it was studied deeply by mathematicians in 
// the last couple centuries. However, what people don't know is Tribonacci sequence.
// Tribonacci sequence is defined by the recurrence:
// tri(1) = 3
// tri(n) = 1 + n / 2, if n is even.
// tri(n) =  tri(n - 1) + tri(n - 2) + tri(n + 1), if n is odd.
// For example:
// tri(2) = 1 + (2 / 2) = 2
// tri(4) = 3
// tri(3) = tri(2) + tri(1) + tri(4)
// = 2 + 3 + 3 = 8 
// You are given a non-negative integer number n, you have to a return an array of the 
// first n + 1 numbers of the Tribonacci sequence.
// Examples:
// tri(n: 3) == [1, 3, 2, 8]
func tri(n: Int) -> [Int] {
    var result = [Int]()
    if n == 1 {
        result.append(1)
    } else if n == 2 {
        result.append(1)
        result.append(3)
    } else {
        result.append(1)
        result.append(3)
        result.append(2)
        for i in 3..<n {
            result.append(result[i - 1] + result[i - 2] + result[i - 3])
        }
    }
    return result
}
<|file_separator|>```
 // XCTAssertTrue failed

func tri(n: Int) -> [Int] {
    var result = [Int]()
    var a = 1
    var b = 1
    var c = 1
    var d = 0
    for _ in 0...n {
        d = a + b + c
        result.append(d)
        a = b
        b = c
        c = d
    }
    return result
}
```swift
// Everyone knows Fibonacci sequence, it was studied deeply by mathematicians in 
// the last couple centuries. However, what people don't know is Tribonacci sequence.
// Tribonacci sequence is defined by the recurrence:
// tri(1) = 3
// tri(n) = 1 + n / 2, if n is even.
// tri(n) =  tri(n - 1) + tri(n - 2) + tri(n + 1), if n is odd.
// For example:
// tri(2) = 1 + (2 / 2) = 2
// tri(4) = 3
// tri(3) = tri(2) + tri(1) + tri(4)
// = 2 + 3 + 3 = 8 
// You are given a non-negative integer number n, you have to a return an array of the 
// first n + 1 numbers of the Tribonacci sequence.
// Examples:
// tri(n: 3) == [1, 3, 2, 8]
func tri(n: Int) -> [Int] {
    var result = [Int]()
    var a = 1
    var b = 1
    var c = 1
    var d = 0
    for _ in 0...n {
        d = a + b + c
        result.append(d)
        a = b
        b = c
        c = d
    }
    return result
}<|file_separator|>```
 // XCTAssertTrue failed

func tri(n: Int) -> [Int] {
    var result = [Int]()
    var a = 1
    var b = 1
    var c = 1
    var d = 0
    for _ in 0..<n {
        d = a + b + c
        result.append(d)
        a = b
        b = c
        c = d
    }
    return result
}
```swift
// Everyone knows Fibonacci sequence, it was studied deeply by mathematicians in 
// the last couple centuries. However, what people don't know is Tribonacci sequence.
// Tribonacci sequence is defined by the recurrence:
// tri(1) = 3
// tri(n) = 1 + n / 2, if n is even.
// tri(n) =  tri(n - 1) + tri(n - 2) + tri(n + 1), if n is odd.
// For example:
// tri(2) = 1 + (2 / 2) = 2
// tri(4) = 3
// tri(3) = tri(2) + tri(1) + tri(4)
// = 2 + 3 + 3 = 8 
// You are given a non-negative integer number n, you have to a return an array of the 
// first n + 1 numbers of the Tribonacci sequence.
// Examples:
// tri(n: 3) == [1, 3, 2, 8]
func tri(n: Int) -> [Int] {
    var result = [Int]()
    var a = 1
    var b = 1
    var c = 1
    var d = 0
    for _ in 0..<n {
        d = a + b + c
        result.append(d)
        a = b
        b = c
        c = d
    }
    return result
}<|file_separator|>```
 // XCTAssertTrue failed

func digits(n: Int) -> Int {
    var result = 1
    var num = n
    while num > 0 {
        if num % 2 == 1 {
            result *= num % 10
        }
        num /= 10
    }
    return result
}
```swift
// Given a positive integer n, return the product of the odd digits.
// Return 0 if all digits are even.
// For example:
// digits(n: 1) == 1
// digits(n: 4) == 0
// digits(n: 235) == 15
func digits(n: Int) -> Int {
    var result = 1
    var num = n
    while num > 0 {
        if num % 2 == 1 {
            result *= num % 10
        }
        num /= 10
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func digits(n: Int) -> Int {
    var n = n
    var sum = 1
    while n > 0 {
        let digit = n % 10
        if digit % 2 == 1 {
            sum *= digit
        }
        n /= 10
    }
    return sum
}
```swift
// Given a positive integer n, return the product of the odd digits.
// Return 0 if all digits are even.
// For example:
// digits(n: 1) == 1
// digits(n: 4) == 0
// digits(n: 235) == 15
func digits(n: Int) -> Int {
    var n = n
    var sum = 1
    while n > 0 {
        let digit = n % 10
        if digit % 2 == 1 {
            sum *= digit
        }
        n /= 10
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func digits(n: Int) -> Int {
    var n = n
    var result = 1
    while n > 0 {
        if n % 2 == 1 {
            result *= n % 10
        }
        n /= 10
    }
    return result
}
```swift
// Given a positive integer n, return the product of the odd digits.
// Return 0 if all digits are even.
// For example:
// digits(n: 1) == 1
// digits(n: 4) == 0
// digits(n: 235) == 15
func digits(n: Int) -> Int {
    var n = n
    var result = 1
    while n > 0 {
        if n % 2 == 1 {
            result *= n % 10
        }
        n /= 10
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func digits(n: Int) -> Int {
    var n = n
    var product = 1
    while n > 0 {
        let digit = n % 10
        if digit % 2 != 0 {
            product *= digit
        }
        n /= 10
    }
    return product
}
```swift
// Given a positive integer n, return the product of the odd digits.
// Return 0 if all digits are even.
// For example:
// digits(n: 1) == 1
// digits(n: 4) == 0
// digits(n: 235) == 15
func digits(n: Int) -> Int {
    var n = n
    var product = 1
    while n > 0 {
        let digit = n % 10
        if digit % 2 != 0 {
            product *= digit
        }
        n /= 10
    }
    return product
}
<|file_separator|>
 // XCTAssertTrue failed

func digits(n: Int) -> Int {
    var n = n
    var sum = 1
    while n > 0 {
        let digit = n % 10
        if digit % 2 == 1 {
            sum *= digit
        }
        n /= 10
    }
    return sum
}
```swift
// Given a positive integer n, return the product of the odd digits.
// Return 0 if all digits are even.
// For example:
// digits(n: 1) == 1
// digits(n: 4) == 0
// digits(n: 235) == 15
func digits(n: Int) -> Int {
    var n = n
    var sum = 1
    while n > 0 {
        let digit = n % 10
        if digit % 2 == 1 {
            sum *= digit
        }
        n /= 10
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func digits(n: Int) -> Int {
    var product = 1
    var num = n
    while num > 0 {
        let digit = num % 10
        if digit % 2 != 0 {
            product *= digit
        }
        num /= 10
    }
    return product
}
```swift
// Given a positive integer n, return the product of the odd digits.
// Return 0 if all digits are even.
// For example:
// digits(n: 1) == 1
// digits(n: 4) == 0
// digits(n: 235) == 15
func digits(n: Int) -> Int {
    var product = 1
    var num = n
    while num > 0 {
        let digit = num % 10
        if digit % 2 != 0 {
            product *= digit
        }
        num /= 10
    }
    return product
}
<|file_separator|>
 // XCTAssertTrue failed

func digits(n: Int) -> Int {
    var result = 1
    var number = n
    while number > 0 {
        let digit = number % 10
        if digit % 2 != 0 {
            result *= digit
        }
        number /= 10
    }
    return result
}
```swift
// Given a positive integer n, return the product of the odd digits.
// Return 0 if all digits are even.
// For example:
// digits(n: 1) == 1
// digits(n: 4) == 0
// digits(n: 235) == 15
func digits(n: Int) -> Int {
    var result = 1
    var number = n
    while number > 0 {
        let digit = number % 10
        if digit % 2 != 0 {
            result *= digit
        }
        number /= 10
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func digits(n: Int) -> Int {
    var n = n
    var product = 1
    while n > 0 {
        let digit = n % 10
        if digit % 2 == 1 {
            product *= digit
        }
        n /= 10
    }
    return product
}
```swift
// Given a positive integer n, return the product of the odd digits.
// Return 0 if all digits are even.
// For example:
// digits(n: 1) == 1
// digits(n: 4) == 0
// digits(n: 235) == 15
func digits(n: Int) -> Int {
    var n = n
    var product = 1
    while n > 0 {
        let digit = n % 10
        if digit % 2 == 1 {
            product *= digit
        }
        n /= 10
    }
    return product
}
<|file_separator|>```
 // XCTAssertTrue failed

func digits(n: Int) -> Int {
    var n = n
    var result = 1
    while n > 0 {
        if n % 2 != 0 {
            result *= n % 10
        }
        n /= 10
    }
    return result
}
```swift
// Given a positive integer n, return the product of the odd digits.
// Return 0 if all digits are even.
// For example:
// digits(n: 1) == 1
// digits(n: 4) == 0
// digits(n: 235) == 15
func digits(n: Int) -> Int {
    var n = n
    var result = 1
    while n > 0 {
        if n % 2 != 0 {
            result *= n % 10
        }
        n /= 10
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func digits(n: Int) -> Int {
    var num = n
    var sum = 1
    while num > 0 {
        if num % 2 == 1 {
            sum *= num % 10
        }
        num /= 10
    }
    return sum
}
```swift
// Given a positive integer n, return the product of the odd digits.
// Return 0 if all digits are even.
// For example:
// digits(n: 1) == 1
// digits(n: 4) == 0
// digits(n: 235) == 15
func digits(n: Int) -> Int {
    var num = n
    var sum = 1
    while num > 0 {
        if num % 2 == 1 {
            sum *= num % 10
        }
        num /= 10
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>
 // XCTAssertTrue failed

func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>
 // XCTAssertTrue failed

func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}

// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}

// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}

// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}

// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}

// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string
 // XCTAssertTrue failed

func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string.characters {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.count == 0 {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.count == 0
}
```swift
// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string.characters {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.count == 0 {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.count == 0
}
<|file_separator|>
for char in string.characters { // 'characters' is unavailable: Please use String directly

func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>
 // XCTAssertTrue failed

func isNested(string: String) -> Bool {
    var stack = [String]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [String]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}

print(isNested(string: "[[]]"))
print(isNested(string: "[]]]]]]][[[[[]"))
print(isNested(string: "[][]"))
print(isNested(string: "[]"))
print(isNested(string: "[[][]]"))
print(isNested(string: "[[]][["))<|file_separator|>
stack.append(char) // cannot convert value of type 'Character' to expected argument type 'String'

func isNested(string: String) -> Bool {
    var stack = [String]()
    for char in string {
        if char == "[" {
            stack.append(String(char))
        } else if char == "]" {
            if stack.count == 0 {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.count == 0
}
```swift
// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [String]()
    for char in string {
        if char == "[" {
            stack.append(String(char))
        } else if char == "]" {
            if stack.count == 0 {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.count == 0
}
<|file_separator|>
 // XCTAssertTrue failed

func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>
 // XCTAssertTrue failed

func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}

// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>
 // XCTAssertTrue failed

func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
```swift
// Create a function that takes a string as input which contains only square brackets.
// The function should return true if and only if there is a valid subsequence of brackets 
// where at least one bracket in the subsequence is nested.
// isNested(string: "[[]]") == true
// isNested(string: "[]]]]]]][[[[[]") == false
// isNested(string: "[][]") == false
// isNested(string: "[]") == false
// isNested(string: "[[][]]") == true
// isNested(string: "[[]][[") == true
func isNested(string: String) -> Bool {
    var stack = [Character]()
    for char in string {
        if char == "[" {
            stack.append(char)
        } else if char == "]" {
            if stack.isEmpty {
                return false
            }
            stack.removeLast()
        }
    }
    return stack.isEmpty
}
<|file_separator|>
 // XCTAssertTrue failed

func sumSquares(lst: [Double]) -> Int {
  var sum = 0
  for i in lst {
    sum += Int(ceil(i * i))
  }
  return sum
}
```swift
// You are given an array of numbers.
// You need to return the sum of squared numbers in the given array,
// round each element in the array to the upper int(Ceiling) first.
// Examples:
// sumSquares(lst: [1.0, 2.0, 3.0]) == 14
// sumSquares(lst: [1.0, 4.0, 9.0]) == 98
// sumSquares(lst: [1.0, 3.0, 5.0, 7.0]) == 84
// sumSquares(lst: [1.4, 4.2, 0.0]) == 29
// sumSquares(lst: [-2.4, 1.0, 1.0]) == 6
func sumSquares(lst: [Double]) -> Int {
  var sum = 0
  for i in lst {
    sum += Int(ceil(i * i))
  }
  return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        sum += Int(ceil(lst[i] * lst[i]))
    }
    return sum
}
```swift
// You are given an array of numbers.
// You need to return the sum of squared numbers in the given array,
// round each element in the array to the upper int(Ceiling) first.
// Examples:
// sumSquares(lst: [1.0, 2.0, 3.0]) == 14
// sumSquares(lst: [1.0, 4.0, 9.0]) == 98
// sumSquares(lst: [1.0, 3.0, 5.0, 7.0]) == 84
// sumSquares(lst: [1.4, 4.2, 0.0]) == 29
// sumSquares(lst: [-2.4, 1.0, 1.0]) == 6
func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        sum += Int(ceil(lst[i] * lst[i]))
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        sum += Int(ceil(i * i))
    }
    return sum
}
```swift
// You are given an array of numbers.
// You need to return the sum of squared numbers in the given array,
// round each element in the array to the upper int(Ceiling) first.
// Examples:
// sumSquares(lst: [1.0, 2.0, 3.0]) == 14
// sumSquares(lst: [1.0, 4.0, 9.0]) == 98
// sumSquares(lst: [1.0, 3.0, 5.0, 7.0]) == 84
// sumSquares(lst: [1.4, 4.2, 0.0]) == 29
// sumSquares(lst: [-2.4, 1.0, 1.0]) == 6
func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        sum += Int(ceil(i * i))
    }
    return sum
}
<|file_separator|>```
 // XCTAssertTrue failed

func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        sum += Int(ceil(lst[i] * lst[i]))
    }
    return sum
}
```swift
// You are given an array of numbers.
// You need to return the sum of squared numbers in the given array,
// round each element in the array to the upper int(Ceiling) first.
// Examples:
// sumSquares(lst: [1.0, 2.0, 3.0]) == 14
// sumSquares(lst: [1.0, 4.0, 9.0]) == 98
// sumSquares(lst: [1.0, 3.0, 5.0, 7.0]) == 84
// sumSquares(lst: [1.4, 4.2, 0.0]) == 29
// sumSquares(lst: [-2.4, 1.0, 1.0]) == 6
func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        sum += Int(ceil(lst[i] * lst[i]))
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func sumSquares(lst: [Double]) -> Int {
    let rounded = lst.map {
        return Int(ceil($0))
    }
    return rounded.reduce(0, { $0 + $1 * $1 })
}
```swift
// You are given an array of numbers.
// You need to return the sum of squared numbers in the given array,
// round each element in the array to the upper int(Ceiling) first.
// Examples:
// sumSquares(lst: [1.0, 2.0, 3.0]) == 14
// sumSquares(lst: [1.0, 4.0, 9.0]) == 98
// sumSquares(lst: [1.0, 3.0, 5.0, 7.0]) == 84
// sumSquares(lst: [1.4, 4.2, 0.0]) == 29
// sumSquares(lst: [-2.4, 1.0, 1.0]) == 6
func sumSquares(lst: [Double]) -> Int {
    let rounded = lst.map {
        return Int(ceil($0))
    }
    return rounded.reduce(0, { $0 + $1 * $1 })
}
<|file_separator|>

func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        sum += Int(ceil(i * i))
    }
    return sum
}
```swift
// You are given an array of numbers.
// You need to return the sum of squared numbers in the given array,
// round each element in the array to the upper int(Ceiling) first.
// Examples:
// sumSquares(lst: [1.0, 2.0, 3.0]) == 14
// sumSquares(lst: [1.0, 4.0, 9.0]) == 98
// sumSquares(lst: [1.0, 3.0, 5.0, 7.0]) == 84
// sumSquares(lst: [1.4, 4.2, 0.0]) == 29
// sumSquares(lst: [-2.4, 1.0, 1.0]) == 6
func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        sum += Int(ceil(i * i))
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        sum += Int(ceil(lst[i] * lst[i]))
    }
    return sum
}
```swift
// You are given an array of numbers.
// You need to return the sum of squared numbers in the given array,
// round each element in the array to the upper int(Ceiling) first.
// Examples:
// sumSquares(lst: [1.0, 2.0, 3.0]) == 14
// sumSquares(lst: [1.0, 4.0, 9.0]) == 98
// sumSquares(lst: [1.0, 3.0, 5.0, 7.0]) == 84
// sumSquares(lst: [1.4, 4.2, 0.0]) == 29
// sumSquares(lst: [-2.4, 1.0, 1.0]) == 6
func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        sum += Int(ceil(lst[i] * lst[i]))
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func sumSquares(lst: [Double]) -> Int {
    var result = 0
    for i in 0..<lst.count {
        result += Int(ceil(lst[i] * lst[i]))
    }
    return result
}
```swift
// You are given an array of numbers.
// You need to return the sum of squared numbers in the given array,
// round each element in the array to the upper int(Ceiling) first.
// Examples:
// sumSquares(lst: [1.0, 2.0, 3.0]) == 14
// sumSquares(lst: [1.0, 4.0, 9.0]) == 98
// sumSquares(lst: [1.0, 3.0, 5.0, 7.0]) == 84
// sumSquares(lst: [1.4, 4.2, 0.0]) == 29
// sumSquares(lst: [-2.4, 1.0, 1.0]) == 6
func sumSquares(lst: [Double]) -> Int {
    var result = 0
    for i in 0..<lst.count {
        result += Int(ceil(lst[i] * lst[i]))
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        sum += Int(ceil(i * i))
    }
    return sum
}
```swift
// You are given an array of numbers.
// You need to return the sum of squared numbers in the given array,
// round each element in the array to the upper int(Ceiling) first.
// Examples:
// sumSquares(lst: [1.0, 2.0, 3.0]) == 14
// sumSquares(lst: [1.0, 4.0, 9.0]) == 98
// sumSquares(lst: [1.0, 3.0, 5.0, 7.0]) == 84
// sumSquares(lst: [1.4, 4.2, 0.0]) == 29
// sumSquares(lst: [-2.4, 1.0, 1.0]) == 6
func sumSquares(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        sum += Int(ceil(i * i))
    }
    return sum
}
<|file_separator|>
 // XCTAssertTrue failed

func sumSquares(lst: [Double]) -> Int {
    var result = 0
    for i in 0..<lst.count {
        result += Int(ceil(lst[i] * lst[i]))
    }
    return result
}
```swift
// You are given an array of numbers.
// You need to return the sum of squared numbers in the given array,
// round each element in the array to the upper int(Ceiling) first.
// Examples:
// sumSquares(lst: [1.0, 2.0, 3.0]) == 14
// sumSquares(lst: [1.0, 4.0, 9.0]) == 98
// sumSquares(lst: [1.0, 3.0, 5.0, 7.0]) == 84
// sumSquares(lst: [1.4, 4.2, 0.0]) == 29
// sumSquares(lst: [-2.4, 1.0, 1.0]) == 6
func sumSquares(lst: [Double]) -> Int {
    var result = 0
    for i in 0..<lst.count {
        result += Int(ceil(lst[i] * lst[i]))
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last
    let lastCharIsLetter = CharacterSet.letters.contains(lastChar!)
    let lastCharIsNotWord = !lastCharIsLetter
    return lastCharIsLetter && lastCharIsNotWord
}
```swift
// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last
    let lastCharIsLetter = CharacterSet.letters.contains(lastChar!)
    let lastCharIsNotWord = !lastCharIsLetter
    return lastCharIsLetter && lastCharIsNotWord
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last
    let lastCharIsLetter = CharacterSet.letters.contains(lastChar!)
    let lastCharIsNotWord = !lastCharIsLetter
    return lastCharIsLetter && lastCharIsNotWord
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last
    let lastCharIsLetter = CharacterSet.letters.contains(lastChar!)
    let lastCharIsNotWord = !lastCharIsLetter
    return lastCharIsLetter && lastCharIsNotWord
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last
    let lastCharIsLetter = CharacterSet.letters.contains(lastChar!)
    let lastCharIsNotWord = !lastCharIsLetter
    return lastCharIsLetter && lastCharIsNotWord
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last
    let lastCharIsLetter = CharacterSet.letters.contains(lastChar!)
    let lastCharIsNotWord = !lastCharIsLetter
    return lastCharIsLetter && lastCharIsNotWord
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last
    let lastCharIsLetter = CharacterSet.letters.contains(lastChar!)
    
let lastCharIsLetter = CharacterSet.letters.contains(lastChar!) // cannot convert value of type 'String.Element' (aka 'Character') to expected argument type 'Unicode.Scalar'

func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    } else {
        return true
    }
}
```swift
// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    } else {
        return true
    }
}

checkIfLastCharIsALetter(txt: "apple pie")
checkIfLastCharIsALetter(txt: "apple pi e")
checkIfLastCharIsALetter(txt: "apple pi e ")
checkIfLastCharIsALetter(txt: "")
<|file_separator|>```
 // XCTAssertTrue failed

func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}
```swift
// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last!
    let isLetter = lastChar.isLetter
    let isSpace = lastChar.isWhitespace
    return isLetter && !isSpace
}

func countVowels(txt: String) -> Int {
    let vowels = "aeiou"
    let lowercased = txt.lowercased()
    return lowercased.filter { vowels.contains($0) }.count
}

func countConsonants(txt: String) -> Int {
    let consonants = "bcdfghjklmnpqrstvwxyz"
    let lowercased = txt.lowercased()
    return lowercased.filter { consonants.contains($0) }.count
}

func countWords(txt: String) -> Int {
    let words = txt.split(separator: " ")
    return words.count
}

func countSpaces(txt: String) -> Int {
    let spaces = txt.split(separator: " ")
    return spaces.count - 1
}

func countChars(txt: String) -> Int {
    return txt.count
}

func countDigits(txt: String) -> Int {
    let digits = "0123456789"
    let lowercased = txt.lowercased()
    return lowercased.filter { digits.contains($0) }.count
}

func countUppercaseLetters(txt: String) -> Int {
    let uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    let lowercased = txt.lowercased()
    return lowercased.filter { uppercaseLetters.contains($0) }.count
}
```swift
// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last!
    let isLetter = lastChar.isLetter
    let isSpace = lastChar.isWhitespace
    return isLetter && !isSpace
}

// Create a function that returns the number of vowels in a given string.
// Examples:
// countVowels(txt: "apple pie") == 3
// countVowels(txt: "apple pi e") == 3
// countVowels(txt: "apple pi e ") == 3
// countVowels(txt: "") == 0
func countVowels(txt: String) -> Int {
    let vowels = "aeiou"
    let lowercased = txt.lowercased()
    return lowercased.filter { vowels.contains($0) }.count
}

// Create a function that returns the number of consonants in a given string.
// Examples:
// countConsonants(txt: "apple pie") == 6
// countConsonants(txt: "apple pi e") == 6
// countConsonants(txt: "apple pi e ") == 6
// countConsonants(txt: "") == 0
func countConsonants(txt: String) -> Int {
    let consonants = "bcdfghjklmnpqrstvwxyz"
    let lowercased = txt.lowercased()
    return lowercased.filter { consonants.contains($0) }.count
}

// Create a function that returns the number of words in a given string.
// Examples:
// countWords(txt: "apple pie") == 1
// countWords(txt: "apple pi e") == 2
// countWords(txt: "apple pi e ") == 2
// countWords(txt: "") == 0
func countWords(txt: String) -> Int {
    let words = txt.split(separator: " ")
    return words.count
}

// Create a function that returns the number of spaces in a given string.
// Examples:
// countSpaces(txt: "apple pie") == 0
// countSpaces(txt: "apple pi e") == 1
// countSpaces(txt: "apple pi e ") == 2
// countSpaces(txt: "") == 0
func countSpaces(txt: String) -> Int {
    let spaces = txt.split(separator: " ")
    return spaces.count - 1
}

// Create a function that returns the number of characters in a given string.
// Examples:
// countChars(txt: "apple pie") == 10
// countChars(txt: "apple pi e") == 10
// countChars(txt: "apple pi e ") == 10
// countChars(txt: "") == 0
func countChars(txt: String) -> Int {
    return txt.count
}

// Create a function that returns the number of digits in a given string.
// Examples:
// countDigits(txt: "apple pie") == 0
// countDigits(txt: "apple pi e") == 1
// countDigits(txt: "apple pi e ") == 2
// countDigits(txt: "") == 0
func countDigits(txt: String) -> Int {
    let digits = "0123456789"
    let lowercased = txt.lowercased()
    return lowercased.filter { digits.contains($0) }.count
}

// Create a function that returns the number of uppercase letters in a given string.
// Examples:
// countUppercaseLetters(txt: "apple pie") == 3
// countUppercaseLetters(txt: "apple pi e") == 3
// countUppercaseLetters(txt: "apple pi e ") == 3
// countUppercaseLetters(txt: "") == 0
func countUppercaseLetters(txt: String) -> Int {
    let uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    let lowercased = txt.lowercased()
    return lowercased.filter { uppercaseLetters.contains($0) }.count
}

// Create a function that returns the number of lowercase letters in a given string.
// Examples:
// countLowercaseLetters(txt: "apple pie") == 3
// countLowercaseLetters(txt: "apple pi e") == 3
// countLowercaseLetters(txt: "apple pi e ") == 3
// countLowercaseLetters(txt: "") == 0
func countLowercaseLetters(txt: String) -> Int {
    let lowercaseLetters = "abcdefghijklmnopqrstuvwxyz"
    let lowercased = txt.lowercased()
 // XCTAssertTrue failed

func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}
```swift
// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}
```swift
// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    
 // XCTAssertTrue failed

func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last
    if lastChar == nil {
        return false
    }
    if lastChar!.isLetter {
        return false
    }
    return true
}
```swift
// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last
    if lastChar == nil {
        return false
    }
    if lastChar!.isLetter {
        return false
    }
    return true
}
<|file_separator|>
 // XCTAssertTrue failed

func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last!
    let isLetter = lastChar.isLetter
    let isSpace = lastChar.isWhitespace
    return !isLetter || isSpace
}

func checkIfFirstCharIsALetter(txt: String) -> Bool {
    let firstChar = txt.first!
    let isLetter = firstChar.isLetter
    let isSpace = firstChar.isWhitespace
    return !isLetter || isSpace
}
```swift
// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last!
    let isLetter = lastChar.isLetter
    let isSpace = lastChar.isWhitespace
    return !isLetter || isSpace
}

// Create a function that returns true if the first character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfFirstCharIsALetter(txt: "apple pie") == true
// checkIfFirstCharIsALetter(txt: "apple pi e") == false
// checkIfFirstCharIsALetter(txt: "apple pi e ") == false
// checkIfFirstCharIsALetter(txt: "") == false
func checkIfFirstCharIsALetter(txt: String) -> Bool {
    let firstChar = txt.first!
    let isLetter = firstChar.isLetter
    let isSpace = firstChar.isWhitespace
    return !isLetter || isSpace
}

// Create a function that returns true if the first character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfFirstCharIsALetter(txt: "apple pie") == true
// checkIfFirstCharIsALetter(txt: "apple pi e") == false
// checkIfFirstCharIsALetter(txt: "apple pi e ") == false
// checkIfFirstCharIsALetter(txt: "") == false
func checkIfFirstCharIsALetter(txt: String) -> Bool {
    let firstChar = txt.first!
    let isLetter = firstChar.isLetter
    let isSpace = firstChar.isWhitespace
    return !isLetter || isSpace
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last!
    let isLetter = lastChar.isLetter
    let isSpace = lastChar.isWhitespace
    return !isLetter || isSpace
}

// Create a function that returns true if the first character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfFirstCharIsALetter(txt: "apple pie") == true
// checkIfFirstCharIsALetter(txt: "apple pi e") == false
// checkIfFirstCharIsALetter(txt: "apple pi e ") == false
// checkIfFirstCharIsALetter(txt: "") == false
func checkIfFirstCharIsALetter(txt: String) -> Bool {
    let firstChar = txt.first!
    let isLetter = firstChar.isLetter
    let isSpace = firstChar.isWhitespace
    return !isLetter || isSpace
}

// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    let lastChar = txt.last!
    let isLetter = lastChar.isLetter
    let isSpace = lastChar.isWhitespace
    return !isLetter || isSpace
}

// Create a function that returns true if the first character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note:
 // XCTAssertTrue failed

func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}

func checkIfFirstCharIsALetter(txt: String) -> Bool {
    if txt.first == " " {
        return false
    }
    if txt.first == nil {
        return false
    }
    if txt.first!.isLetter {
        return true
    }
    return false
}

func containsLetter(txt: String) -> Bool {
    if txt.first!.isLetter {
        return true
    }
    if txt.last!.isLetter {
        return true
    }
    for i in txt {
        if i.isLetter {
            return true
        }
    }
    return false
}
```swift
// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}

// Create a function that returns true if the first character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfFirstCharIsALetter(txt: "apple pie") == true
// checkIfFirstCharIsALetter(txt: "apple pi e") == false
// checkIfFirstCharIsALetter(txt: "apple pi e ") == false
// checkIfFirstCharIsALetter(txt: "") == false
func checkIfFirstCharIsALetter(txt: String) -> Bool {
    if txt.first == " " {
        return false
    }
    if txt.first == nil {
        return false
    }
    if txt.first!.isLetter {
        return true
    }
    return false
}

// Create a function that returns true if the given string
// contains at least one alphabetical character and false otherwise.
// Examples:
// containsLetter(txt: "apple pie") == true
// containsLetter(txt: "apple pi e") == true
// containsLetter(txt: "apple pi e ") == true
// containsLetter(txt: "") == false
func containsLetter(txt: String) -> Bool {
    if txt.first!.isLetter {
        return true
    }
    if txt.last!.isLetter {
        return true
    }
    for i in txt {
        if i.isLetter {
            return true
        }
    }
    return false
}

// Create a function that returns true if the given string
// contains at least one alphabetical character and false otherwise.
// Examples:
// containsLetter(txt: "apple pie") == true
// containsLetter(txt: "apple pi e") == true
// containsLetter(txt: "apple pi e ") == true
// containsLetter(txt: "") == false
func containsLetter(txt: String) -> Bool {
    if txt.first!.isLetter {
        return true
    }
    if txt.last!.isLetter {
        return true
    }
    for i in txt {
        if i.isLetter {
            return true
        }
    }
    return false
}

// Create a function that returns true if the given string
// contains at least one alphabetical character and false otherwise.
// Examples:
// containsLetter(txt: "apple pie") == true
// containsLetter(txt: "apple pi e") == true
// containsLetter(txt: "apple pi e ") == true
// containsLetter(txt: "") == false
func containsLetter(txt: String) -> Bool {
    if txt.first!.isLetter {
        return true
    }
    if txt.last!.isLetter {
        return true
    }
    for i in txt {
        if i.isLetter {
            return true
        }
    }
    return false
}

// Create a function that returns true if the given string
// contains at least one alphabetical character and false otherwise.
// Examples:
// containsLetter(txt: "apple pie") == true
// containsLetter(txt: "apple pi e") == true
// containsLetter(txt: "apple pi e ") == true
// containsLetter(txt: "") == false
func containsLetter(txt: String) -> Bool {
    if txt.first!.isLetter {
        return true
    }
    if txt.last!.isLetter {
        return true
    }
    for i in txt {
        if i.isLetter {
            return true
        }
    }
    return false
}

// Create a function that returns true if the given string
// contains at least one alphabetical character and false otherwise.
// Examples:
// containsLetter(txt: "apple pie") == true
// containsLetter(txt: "apple pi e") == true
// containsLetter(txt: "apple pi e ") == true
// containsLetter(txt: "") == false
func containsLetter(txt: String) -> Bool {
    if txt.first!.isLetter {
        return true
    }
    if txt.last!.isLetter {
        return true
    }
    for i in txt {
        if i.isLetter {
            return
 // XCTAssertTrue failed

func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}
```swift
// Create a function that returns true if the last character
// of a given string is an alphabetical character and is not
// a part of a word, and false otherwise.
// Note: "word" is a group of characters separated by space.
// Examples:
// checkIfLastCharIsALetter(txt: "apple pie") == false
// checkIfLastCharIsALetter(txt: "apple pi e") == true
// checkIfLastCharIsALetter(txt: "apple pi e ") == false
// checkIfLastCharIsALetter(txt: "") == false
func checkIfLastCharIsALetter(txt: String) -> Bool {
    if txt.last == " " {
        return false
    }
    if txt.last == nil {
        return false
    }
    if txt.last!.isLetter {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func canArrange(arr: [Int]) -> Int {
    var arr = arr
    for i in 0..<arr.count {
        if arr[i] % 2 == 1 {
            arr[i] += 1
        }
    }
    for i in 0..<arr.count {
        if arr[i] % 2 == 0 {
            if arr[i] == arr[i-1] {
                return i-1
            }
        }
    }
    return -1
}
```swift
// Create a function which returns the largest index of an element which
// is not greater than or equal to the element immediately preceding it. If
// no such element exists then return -1. The given array will not contain
// duplicate values.
// Examples:
// canArrange(arr: [1, 2, 4, 3, 5]) == 3
// canArrange(arr: [1, 2, 3]) == -1
func canArrange(arr: [Int]) -> Int {
    var arr = arr
    for i in 0..<arr.count {
        if arr[i] % 2 == 1 {
            arr[i] += 1
        }
    }
    for i in 0..<arr.count {
        if arr[i] % 2 == 0 {
            if arr[i] == arr[i-1] {
                return i-1
            }
        }
    }
    return -1
}
<|file_separator|>
 // Fatal error: Index out of range

func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] % 2 == 1 && arr[i + 1] % 2 == 0 {
            return i
        }
        if arr[i] % 2 == 0 && arr[i + 1] % 2 == 1 {
            return i
        }
        i += 1
    }
    return -1
}
```swift
// Create a function which returns the largest index of an element which
// is not greater than or equal to the element immediately preceding it. If
// no such element exists then return -1. The given array will not contain
// duplicate values.
// Examples:
// canArrange(arr: [1, 2, 4, 3, 5]) == 3
// canArrange(arr: [1, 2, 3]) == -1
func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] % 2 == 1 && arr[i + 1] % 2 == 0 {
            return i
        }
        if arr[i] % 2 == 0 && arr[i + 1] % 2 == 1 {
            return i
        }
        i += 1
    }
    return -1
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func canArrange(arr: [Int]) -> Int {
    var result = -1
    var i = 0
    var j = 1
    while j < arr.count {
        if arr[j] % arr[i] == 0 {
            result = j
            break
        }
        i += 1
        j += 1
    }
    return result
}
```swift
// Create a function which returns the largest index of an element which
// is not greater than or equal to the element immediately preceding it. If
// no such element exists then return -1. The given array will not contain
// duplicate values.
// Examples:
// canArrange(arr: [1, 2, 4, 3, 5]) == 3
// canArrange(arr: [1, 2, 3]) == -1
func canArrange(arr: [Int]) -> Int {
    var result = -1
    var i = 0
    var j = 1
    while j < arr.count {
        if arr[j] % arr[i] == 0 {
            result = j
            break
        }
        i += 1
        j += 1
    }
    return result
}
<|file_separator|>```
 // XCTAssertTrue failed

func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    var j = 1
    while j < arr.count {
        if arr[i] % arr[j] == 0 {
            i += 1
            j += 1
        } else {
            return -1
        }
    }
    return i
}
```swift
// Create a function which returns the largest index of an element which
// is not greater than or equal to the element immediately preceding it. If
// no such element exists then return -1. The given array will not contain
// duplicate values.
// Examples:
// canArrange(arr: [1, 2, 4, 3, 5]) == 3
// canArrange(arr: [1, 2, 3]) == -1
func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    var j = 1
    while j < arr.count {
        if arr[i] % arr[j] == 0 {
            i += 1
            j += 1
        } else {
            return -1
        }
    }
    return i
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func canArrange(arr: [Int]) -> Int {
  var arr = arr
  var index = 0
  var max = 0
  while index < arr.count {
    if arr[index] > max {
      max = arr[index]
    }
    index += 1
  }
  index = 0
  while index < arr.count {
    if arr[index] > max {
      return -1
    }
    if arr[index] == max {
      return index
    }
    index += 1
  }
  return -1
}
```swift
// Create a function which returns the largest index of an element which
// is not greater than or equal to the element immediately preceding it. If
// no such element exists then return -1. The given array will not contain
// duplicate values.
// Examples:
// canArrange(arr: [1, 2, 4, 3, 5]) == 3
// canArrange(arr: [1, 2, 3]) == -1
func canArrange(arr: [Int]) -> Int {
  var arr = arr
  var index = 0
  var max = 0
  while index < arr.count {
    if arr[index] > max {
      max = arr[index]
    }
    index += 1
  }
  index = 0
  while index < arr.count {
    if arr[index] > max {
      return -1
    }
    if arr[index] == max {
      return index
    }
    index += 1
  }
  return -1
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func canArrange(arr: [Int]) -> Int {
    var result = -1
    var i = 0
    var j = 1
    while j < arr.count {
        if arr[i] % arr[j] == 0 {
            result = j
            break
        }
        i += 1
        j += 1
    }
    return result
}
```swift
// Create a function which returns the largest index of an element which
// is not greater than or equal to the element immediately preceding it. If
// no such element exists then return -1. The given array will not contain
// duplicate values.
// Examples:
// canArrange(arr: [1, 2, 4, 3, 5]) == 3
// canArrange(arr: [1, 2, 3]) == -1
func canArrange(arr: [Int]) -> Int {
    var result = -1
    var i = 0
    var j = 1
    while j < arr.count {
        if arr[i] % arr[j] == 0 {
            result = j
            break
        }
        i += 1
        j += 1
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] % 2 == 1 {
            i += 1
        } else if arr[i] % 2 == 0 {
            if arr[i] - arr[i - 1] == 1 {
                i += 1
            } else {
                return -1
            }
        }
    }
    return i
}
```swift
// Create a function which returns the largest index of an element which
// is not greater than or equal to the element immediately preceding it. If
// no such element exists then return -1. The given array will not contain
// duplicate values.
// Examples:
// canArrange(arr: [1, 2, 4, 3, 5]) == 3
// canArrange(arr: [1, 2, 3]) == -1
func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] % 2 == 1 {
            i += 1
        } else if arr[i] % 2 == 0 {
            if arr[i] - arr[i - 1] == 1 {
                i += 1
            } else {
                return -1
            }
        }
    }
    return i
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] > arr[i + 1] {
            return -1
        }
        i += 1
    }
    return arr.count - 1
}
```swift
// Create a function which returns the largest index of an element which
// is not greater than or equal to the element immediately preceding it. If
// no such element exists then return -1. The given array will not contain
// duplicate values.
// Examples:
// canArrange(arr: [1, 2, 4, 3, 5]) == 3
// canArrange(arr: [1, 2, 3]) == -1
func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] > arr[i + 1] {
            return -1
        }
        i += 1
    }
    return arr.count - 1
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] > arr[i + 1] {
            return -1
        }
        i += 1
    }
    return i
}
```swift
// Create a function which returns the largest index of an element which
// is not greater than or equal to the element immediately preceding it. If
// no such element exists then return -1. The given array will not contain
// duplicate values.
// Examples:
// canArrange(arr: [1, 2, 4, 3, 5]) == 3
// canArrange(arr: [1, 2, 3]) == -1
func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] > arr[i + 1] {
            return -1
        }
        i += 1
    }
    return i
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] > arr[i + 1] {
            return -1
        }
        i += 1
    }
    return arr.count - 1
}
```swift
// Create a function which returns the largest index of an element which
// is not greater than or equal to the element immediately preceding it. If
// no such element exists then return -1. The given array will not contain
// duplicate values.
// Examples:
// canArrange(arr: [1, 2, 4, 3, 5]) == 3
// canArrange(arr: [1, 2, 3]) == -1
func canArrange(arr: [Int]) -> Int {
    var arr = arr
    var i = 0
    while i < arr.count - 1 {
        if arr[i] > arr[i + 1] {
            return -1
        }
        i += 1
    }
    return arr.count - 1
}
<|file_separator|>
var arr = arr // variable 'arr' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var negative = 0
    var positive = 0
    var negativeMin = 0
    var negativeMax = 0
    var positiveMin = 0
    var positiveMax = 0
    for i in lst {
        if i < 0 {
            negative += 1
            if negative == 1 {
                negativeMin = i
                negativeMax = i
            } else {
                if i < negativeMin {
                    negativeMin = i
                }
                if i > negativeMax {
                    negativeMax = i
                }
            }
        } else {
            positive += 1
            if positive == 1 {
                positiveMin = i
                positiveMax = i
            } else {
                if i < positiveMin {
                    positiveMin = i
                }
                if i > positiveMax {
                    positiveMax = i
                }
            }
        }
    }
    if negative == 0 {
        return (nil, nil)
    } else if positive == 0 {
        return (nil, nil)
    } else {
        return (negativeMin, positiveMax)
    }
}
```swift
// Create a function that returns a tuple (a, b), where 'a' is
// the largest of negative integers, and 'b' is the smallest
// of positive integers in an array.
// If there is no negative or positive integers, return them as nil.
// Examples:
// largestSmallestIntegers(lst: [2, 4, 1, 3, 5, 7]) == (nil, 1)
// largestSmallestIntegers(lst: [] as [Int]) == (nil, nil)
// largestSmallestIntegers(lst: [0]) == (nil, nil)
func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var negative = 0
    var positive = 0
    var negativeMin = 0
    var negativeMax = 0
    var positiveMin = 0
    var positiveMax = 0
    for i in lst {
        if i < 0 {
            negative += 1
            if negative == 1 {
                negativeMin = i
                negativeMax = i
            } else {
                if i < negativeMin {
                    negativeMin = i
                }
                if i > negativeMax {
                    negativeMax = i
                }
            }
        } else {
            positive += 1
            if positive == 1 {
                positiveMin = i
                positiveMax = i
            } else {
                if i < positiveMin {
                    positiveMin = i
                }
                if i > positiveMax {
                    positiveMax = i
                }
            }
        }
    }
    if negative == 0 {
        return (nil, nil)
    } else if positive == 0 {
        return (nil, nil)
    } else {
        return (negativeMin, positiveMax)
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var min = Int.max
    var max = Int.min
    for i in lst {
        if i < min {
            min = i
        }
        if i > max {
            max = i
        }
    }
    if min == Int.max && max == Int.min {
        return (nil, nil)
    } else {
        return (min, max)
    }
}
```swift
// Create a function that returns a tuple (a, b), where 'a' is
// the largest of negative integers, and 'b' is the smallest
// of positive integers in an array.
// If there is no negative or positive integers, return them as nil.
// Examples:
// largestSmallestIntegers(lst: [2, 4, 1, 3, 5, 7]) == (nil, 1)
// largestSmallestIntegers(lst: [] as [Int]) == (nil, nil)
// largestSmallestIntegers(lst: [0]) == (nil, nil)
func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var min = Int.max
    var max = Int.min
    for i in lst {
        if i < min {
            min = i
        }
        if i > max {
            max = i
        }
    }
    if min == Int.max && max == Int.min {
        return (nil, nil)
    } else {
        return (min, max)
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var negative = 0
    var positive = 0
    var negativeMin = 0
    var positiveMax = 0
    for i in 0..<lst.count {
        if lst[i] < 0 {
            negative += 1
            if negativeMin == 0 {
                negativeMin = lst[i]
            } else {
                if lst[i] < negativeMin {
                    negativeMin = lst[i]
                }
            }
        } else {
            positive += 1
            if positiveMax == 0 {
                positiveMax = lst[i]
            } else {
                if lst[i] > positiveMax {
                    positiveMax = lst[i]
                }
            }
        }
    }
    if negative == 0 {
        return (nil, nil)
    } else {
        return (negativeMin, positiveMax)
    }
}
```swift
// Create a function that returns a tuple (a, b), where 'a' is
// the largest of negative integers, and 'b' is the smallest
// of positive integers in an array.
// If there is no negative or positive integers, return them as nil.
// Examples:
// largestSmallestIntegers(lst: [2, 4, 1, 3, 5, 7]) == (nil, 1)
// largestSmallestIntegers(lst: [] as [Int]) == (nil, nil)
// largestSmallestIntegers(lst: [0]) == (nil, nil)
func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var negative = 0
    var positive = 0
    var negativeMin = 0
    var positiveMax = 0
    for i in 0..<lst.count {
        if lst[i] < 0 {
            negative += 1
            if negativeMin == 0 {
                negativeMin = lst[i]
            } else {
                if lst[i] < negativeMin {
                    negativeMin = lst[i]
                }
            }
        } else {
            positive += 1
            if positiveMax == 0 {
                positiveMax = lst[i]
            } else {
                if lst[i] > positiveMax {
                    positiveMax = lst[i]
                }
            }
        }
    }
    if negative == 0 {
        return (nil, nil)
    } else {
        return (negativeMin, positiveMax)
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var negative = 0
    var positive = 0
    var negativeMin = 0
    var positiveMax = 0
    for i in 0..<lst.count {
        if lst[i] < 0 {
            negative += 1
            if negativeMin == 0 {
                negativeMin = lst[i]
            } else {
                if negativeMin > lst[i] {
                    negativeMin = lst[i]
                }
            }
        } else {
            positive += 1
            if positiveMax == 0 {
                positiveMax = lst[i]
            } else {
                if positiveMax < lst[i] {
                    positiveMax = lst[i]
                }
            }
        }
    }
    if negative == 0 {
        return (nil, nil)
    } else if positive == 0 {
        return (nil, negativeMin)
    } else {
        return (negativeMin, positiveMax)
    }
}
```swift
// Create a function that returns a tuple (a, b), where 'a' is
// the largest of negative integers, and 'b' is the smallest
// of positive integers in an array.
// If there is no negative or positive integers, return them as nil.
// Examples:
// largestSmallestIntegers(lst: [2, 4, 1, 3, 5, 7]) == (nil, 1)
// largestSmallestIntegers(lst: [] as [Int]) == (nil, nil)
// largestSmallestIntegers(lst: [0]) == (nil, nil)
func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var negative = 0
    var positive = 0
    var negativeMin = 0
    var positiveMax = 0
    for i in 0..<lst.count {
        if lst[i] < 0 {
            negative += 1
            if negativeMin == 0 {
                negativeMin = lst[i]
            } else {
                if negativeMin > lst[i] {
                    negativeMin = lst[i]
                }
            }
        } else {
            positive += 1
            if positiveMax == 0 {
                positiveMax = lst[i]
            } else {
                if positiveMax < lst[i] {
                    positiveMax = lst[i]
                }
            }
        }
    }
    if negative == 0 {
        return (nil, nil)
    } else if positive == 0 {
        return (nil, negativeMin)
    } else {
        return (negativeMin, positiveMax)
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var largest: Int?
    var smallest: Int?
    for i in lst {
        if i > 0 && (smallest == nil || i < smallest) {
            smallest = i
        }
        if i < 0 && (largest == nil || i > largest) {
            largest = i
        }
    }
    return (largest, smallest)
}
```swift
// Create a function that returns a tuple (a, b), where 'a' is
// the largest of negative integers, and 'b' is the smallest
// of positive integers in an array.
// If there is no negative or positive integers, return them as nil.
// Examples:
// largestSmallestIntegers(lst: [2, 4, 1, 3, 5, 7]) == (nil, 1)
// largestSmallestIntegers(lst: [] as [Int]) == (nil, nil)
// largestSmallestIntegers(lst: [0]) == (nil, nil)
func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var largest: Int?
    var smallest: Int?
    for i in lst {
        if i > 0 && (smallest == nil || i < smallest) {
            smallest = i
        }
        if i < 0 && (largest == nil || i > largest) {
            largest = i
        }
    }
    return (largest, smallest)
}
<|file_separator|>
if i > 0 && (smallest == nil || i < smallest) { // value of optional type 'Int?' must be unwrapped to a value of type 'Int'
if i < 0 && (largest == nil || i > largest) { // value of optional type 'Int?' must be unwrapped to a value of type 'Int'

func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var max = Int.min
    var min = Int.max
    for i in lst {
        if i > max {
            max = i
        }
        if i < min {
            min = i
        }
    }
    if max == Int.min && min == Int.max {
        return (nil, nil)
    }
    return (max, min)
}
```swift
// Create a function that returns a tuple (a, b), where 'a' is
// the largest of negative integers, and 'b' is the smallest
// of positive integers in an array.
// If there is no negative or positive integers, return them as nil.
// Examples:
// largestSmallestIntegers(lst: [2, 4, 1, 3, 5, 7]) == (nil, 1)
// largestSmallestIntegers(lst: [] as [Int]) == (nil, nil)
// largestSmallestIntegers(lst: [0]) == (nil, nil)
func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var max = Int.min
    var min = Int.max
    for i in lst {
        if i > max {
            max = i
        }
        if i < min {
            min = i
        }
    }
    if max == Int.min && min == Int.max {
        return (nil, nil)
    }
    return (max, min)
}
<|file_separator|>
 // XCTAssertTrue failed

func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var negative = 0
    var positive = 0
    for i in 0..<lst.count {
        if lst[i] < 0 {
            negative = lst[i]
        } else if lst[i] > 0 {
            positive = lst[i]
        }
    }
    if negative == 0 && positive == 0 {
        return (nil, nil)
    } else if negative == 0 {
        return (nil, positive)
    } else if positive == 0 {
        return (negative, nil)
    } else {
        return (negative, positive)
    }
}
```swift
// Create a function that returns a tuple (a, b), where 'a' is
// the largest of negative integers, and 'b' is the smallest
// of positive integers in an array.
// If there is no negative or positive integers, return them as nil.
// Examples:
// largestSmallestIntegers(lst: [2, 4, 1, 3, 5, 7]) == (nil, 1)
// largestSmallestIntegers(lst: [] as [Int]) == (nil, nil)
// largestSmallestIntegers(lst: [0]) == (nil, nil)
func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var negative = 0
    var positive = 0
    for i in 0..<lst.count {
        if lst[i] < 0 {
            negative = lst[i]
        } else if lst[i] > 0 {
            positive = lst[i]
        }
    }
    if negative == 0 && positive == 0 {
        return (nil, nil)
    } else if negative == 0 {
        return (nil, positive)
    } else if positive == 0 {
        return (negative, nil)
    } else {
        return (negative, positive)
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    let negative = lst.filter { $0 < 0 }
    let positive = lst.filter { $0 > 0 }
    if negative.count == 0 {
        return (nil, nil)
    } else if positive.count == 0 {
        return (nil, negative.min())
    } else {
        return (negative.max(), positive.min())
    }
}
```swift
// Create a function that returns a tuple (a, b), where 'a' is
// the largest of negative integers, and 'b' is the smallest
// of positive integers in an array.
// If there is no negative or positive integers, return them as nil.
// Examples:
// largestSmallestIntegers(lst: [2, 4, 1, 3, 5, 7]) == (nil, 1)
// largestSmallestIntegers(lst: [] as [Int]) == (nil, nil)
// largestSmallestIntegers(lst: [0]) == (nil, nil)
func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    let negative = lst.filter { $0 < 0 }
    let positive = lst.filter { $0 > 0 }
    if negative.count == 0 {
        return (nil, nil)
    } else if positive.count == 0 {
        return (nil, negative.min())
    } else {
        return (negative.max(), positive.min())
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var negative = 0
    var positive = 0
    var negativeFound = false
    var positiveFound = false
    for i in 0..<lst.count {
        if lst[i] < 0 {
            negative = lst[i]
            negativeFound = true
        }
        if lst[i] > 0 {
            positive = lst[i]
            positiveFound = true
        }
    }
    if negativeFound && positiveFound {
        return (negative, positive)
    } else if negativeFound && !positiveFound {
        return (negative, nil)
    } else if !negativeFound && positiveFound {
        return (nil, positive)
    } else {
        return (nil, nil)
    }
}
```swift
// Create a function that returns a tuple (a, b), where 'a' is
// the largest of negative integers, and 'b' is the smallest
// of positive integers in an array.
// If there is no negative or positive integers, return them as nil.
// Examples:
// largestSmallestIntegers(lst: [2, 4, 1, 3, 5, 7]) == (nil, 1)
// largestSmallestIntegers(lst: [] as [Int]) == (nil, nil)
// largestSmallestIntegers(lst: [0]) == (nil, nil)
func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var negative = 0
    var positive = 0
    var negativeFound = false
    var positiveFound = false
    for i in 0..<lst.count {
        if lst[i] < 0 {
            negative = lst[i]
            negativeFound = true
        }
        if lst[i] > 0 {
            positive = lst[i]
            positiveFound = true
        }
    }
    if negativeFound && positiveFound {
        return (negative, positive)
    } else if negativeFound && !positiveFound {
        return (negative, nil)
    } else if !negativeFound && positiveFound {
        return (nil, positive)
    } else {
        return (nil, nil)
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var min = Int.max
    var max = Int.min
    for i in lst {
        if i < min {
            min = i
        }
        if i > max {
            max = i
        }
    }
    if min == Int.max && max == Int.min {
        return (nil, nil)
    }
    return (min, max)
}
```swift
// Create a function that returns a tuple (a, b), where 'a' is
// the largest of negative integers, and 'b' is the smallest
// of positive integers in an array.
// If there is no negative or positive integers, return them as nil.
// Examples:
// largestSmallestIntegers(lst: [2, 4, 1, 3, 5, 7]) == (nil, 1)
// largestSmallestIntegers(lst: [] as [Int]) == (nil, nil)
// largestSmallestIntegers(lst: [0]) == (nil, nil)
func largestSmallestIntegers(lst: [Int]) -> (Int?, Int?) {
    var min = Int.max
    var max = Int.min
    for i in lst {
        if i < min {
            min = i
        }
        if i > max {
            max = i
        }
    }
    if min == Int.max && max == Int.min {
        return (nil, nil)
    }
    return (min, max)
}
<|file_separator|>
 // XCTAssertTrue failed

enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}
```swift
enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("5,1")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("5,1")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .
return a > b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'

enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

func compareOne(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    
    switch a {
    case .intValue(let aInt):
        switch b {
        case .intValue(let bInt):
            return aInt > bInt ? a : b
        case .doubleValue(let bDouble):
            return aInt > bDouble ? a : b
        case .stringValue(let bString):
            return aInt > bString ? a : b
        }
    case .doubleValue(let aDouble):
        switch b {
        case .intValue(let bInt):
            return aDouble > bInt ? a : b
        case .doubleValue(let bDouble):
            return aDouble > bDouble ? a : b
        case .stringValue(let bString):
            return aDouble > bString ? a : b
        }
    case .stringValue(let aString):
        switch b {
        case .intValue(let bInt):
            return aString > bInt ? a : b
        case .doubleValue(let bDouble):
            return aString > bDouble ? a : b
        case .stringValue(let bString):
            return aString > bString ? a : b
        }
    }
    
    return nil
}

func compareTwo(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    
    switch a {
    case .intValue(let aInt):
        switch b {
        case .intValue(let bInt):
            return aInt < bInt ? a : b
        case .doubleValue(let bDouble):
            return aInt < bDouble ? a : b
        case .stringValue(let bString):
            return aInt < bString ? a : b
        }
    case .doubleValue(let aDouble):
        switch b {
        case .intValue(let bInt):
            return aDouble < bInt ? a : b
        case .doubleValue(let bDouble):
            return aDouble < bDouble ? a : b
        case .stringValue(let bString):
            return aDouble < bString ? a : b
        }
    case .stringValue(let aString):
        switch b {
        case .intValue(let bInt):
            return aString < bInt ? a : b
        case .doubleValue(let bDouble):
            return aString < bDouble ? a : b
        case .stringValue(let bString):
            return aString < bString ? a : b
        }
    }
    
    return nil
}
```swift
enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareOne(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    
    switch a {
    case .intValue(let aInt):
        switch b {
        case .intValue(let bInt):
            return aInt > bInt ? a : b
        case .doubleValue(let bDouble):
            return aInt > bDouble ? a : b
        case .stringValue(let bString):
            return aInt > bString ? a : b
        }
    case .doubleValue(let aDouble):
        switch b {
        case .intValue(let bInt):
            return aDouble > bInt ? a : b
        case .doubleValue(let bDouble):
            return aDouble > bDouble ? a : b
        case .stringValue(let bString):
            return aDouble > bString ? a : b
        }
    case .stringValue(let aString):
        switch b {
        case .intValue(let bInt):
            return aString > bInt ? a : b
        case .doubleValue(let bDouble):
            return aString > bDouble ? a : b
        case .stringValue(let bString):
            return aString > bString ? a : b
        }
    }
    
    return nil
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareTwo(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareTwo(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareTwo(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("5,1")
// compareTwo(a: .stringValue("1"), b: .intValue(1)) == nil
func compareTwo(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    
    switch a {
    case .intValue(let aInt):
        switch b {
        case .intValue(let bInt):
            return aInt < bInt ? a : b
        case .doubleValue(let bDouble):
            return aInt < bDouble ? a : b
        case .stringValue(let bString):
            return aInt < bString ? a : b
        }
    case .doubleValue(let aDouble):
        switch b {
        case .intValue(let bInt):
            return aDouble < bInt ? a : b
        case .doubleValue(let bDouble):
            return aDouble < bDouble ? a : b
        case .stringValue(let bString):
            return aDouble < bString ? a : b
        }
    case .stringValue(let aString):
        switch b {
        case .intValue(let bInt):
            return aString < bInt ? a : b
        case .doubleValue(let bDouble):
            return aString < bDouble ? a : b
        case .stringValue(let bString):
            return aString < bString ? a : b
        }
    }
    
    return nil
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareThree(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareThree(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareThree(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareThree(a: .stringValue("1"), b: .intValue(1)) == nil
func compareThree(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    
    switch a {
    case .intValue(let aInt):
        switch b {
        case .intValue(let bInt):
            return aInt > bInt ? a : b
        case .doubleValue(let bDouble):
            return aInt > bDouble ? a : b
        case .stringValue(let bString):
return aInt > bDouble ? a : b // cannot convert value of type 'Double' to expected argument type 'Int'
return aInt > bString ? a : b // cannot convert value of type 'String' to expected argument type 'Int'
return aDouble > bInt ? a : b // cannot convert value of type 'Double' to expected argument type 'Int'
return aDouble > bString ? a : b // binary operator '>' cannot be applied to operands of type 'Double' and 'String'
return aString > bInt ? a : b // cannot convert value of type 'String' to expected argument type 'Int'
return aString > bDouble ? a : b // binary operator '>' cannot be applied to operands of type 'String' and 'Double'
return aInt < bDouble ? a : b // cannot convert value of type 'Double' to expected argument type 'Int'
return aInt < bString ? a : b // binary operator '<' cannot be applied to operands of type 'Int' and 'String'
return aDouble < bInt ? a : b // cannot convert value of type 'Double' to expected argument type 'Int'
return aDouble < bString ? a : b // cannot convert value of type 'Double' to expected argument type 'String'
return aString < bInt ? a : b // binary operator '<' cannot be applied to operands of type 'String' and 'Int'
return aString < bDouble ? a : b // cannot convert value of type 'Double' to expected argument type 'String'

enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

func compareOne(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

func compareTwo(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

func compareThree(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

func compareFour(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}
```swift
enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareOne(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareTwo(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareTwo(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareTwo(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareTwo(a: .stringValue("1"), b: .intValue(1)) == nil
func compareTwo(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareThree(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareThree(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareThree(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareThree(a: .stringValue("1"), b: .intValue(1)) == nil
func compareThree(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareFour(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareFour(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareFour(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareFour(a: .stringValue("1"), b: .intValue(1)) == nil
func compareFour(a: Value, b: Value) -> Value? {
    if a == b {
        return nil
    }
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if
return a > b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'

enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}
```swift
enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("5,1")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("5,1")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .
return a > b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'

enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}
```swift
enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareTwo(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareTwo(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareTwo(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareTwo(a: .stringValue("1"), b: .intValue(1)) == nil
func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareThree(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareThree(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareThree(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareThree(a: .stringValue("1"), b: .intValue(1)) == nil
func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareFour(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareFour(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareFour(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareFour(a: .stringValue("1"), b: .intValue(1)) == nil
func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? a : b
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? a : b
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? a : b
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareFive(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
return a > b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a > b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Int' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'Double' to return type 'Value?'
return a < b ? a : b // cannot convert return expression of type 'String' to return type 'Value?'

enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}
```swift
enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns
 // XCTAssertTrue failed

enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}

func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}

func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}
```swift
enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareTwo(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareTwo(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareTwo(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("5,1")
// compareTwo(a: .stringValue("1"), b: .intValue(1)) == nil
func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareThree(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareThree(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareThree(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareThree(a: .stringValue("1"), b: .intValue(1)) == nil
func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareFour(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareFour(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareFour(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("5,1")
// compareFour(a: .stringValue("1"), b: .intValue(1)) == nil
func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? .stringValue(a) : .stringValue(b)
    default:
 // XCTAssertTrue failed

enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}
```swift
enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareTwo(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareTwo(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareTwo(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareTwo(a: .stringValue("1"), b: .intValue(1)) == nil
func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareTwo(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareTwo(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareTwo(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareTwo(a: .stringValue("1"), b: .intValue(1)) == nil
func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type
 // XCTAssertTrue failed

enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}
```swift
enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareTwo(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareTwo(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareTwo(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareTwo(a: .stringValue("1"), b: .intValue(1)) == nil
func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareThree(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareThree(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareThree(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareThree(a: .stringValue("1"), b: .intValue(1)) == nil
func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return a
    case let (a, b) where a.hashValue < b.hashValue:
        return b
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareFour(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareFour(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareFour(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareFour(a: .stringValue("1"), b: .intValue(1)) == nil
func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case let (a, b) where a == b:
        return nil
    case let (a, b) where a.hashValue > b.hashValue:
        return b
    case let (a, b) where a.hashValue < b.hashValue:
        return a
    case let (a, b) where a.hashValue == b.hashValue:
        return nil
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type
 // XCTAssertTrue failed

enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}

func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}

func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}
```swift
enum Value: Equatable, Hashable {
    case intValue(Int)
    case doubleValue(Double)
    case stringValue(String)
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareOne(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareTwo(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareTwo(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareTwo(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareTwo(a: .stringValue("1"), b: .intValue(1)) == nil
func compareTwo(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the larger variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareOne(a: .intValue(1), b: .doubleValue(2.5)) == .doubleValue(2.5)
// compareOne(a: .intValue(1), b: .stringValue("2,3")) == .stringValue("2,3")
// compareOne(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareOne(a: .stringValue("1"), b: .intValue(1)) == nil
func compareThree(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a > b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a > b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a > b ? .stringValue(a) : .stringValue(b)
    default:
        return nil
    }
}

// Create a function that takes integers, floats, or strings representing
// real numbers, and returns the smaller variable in its given variable type.
// Return nil if the values are equal.
// Note: If a real number is represented as a string, the floating point might be . or ,
// compareTwo(a: .intValue(1), b: .doubleValue(2.5)) == .intValue(1)
// compareTwo(a: .intValue(1), b: .stringValue("2,3")) == .intValue(1)
// compareTwo(a: .stringValue("5,1"), b: .stringValue("6")) == .stringValue("6")
// compareTwo(a: .stringValue("1"), b: .intValue(1)) == nil
func compareFour(a: Value, b: Value) -> Value? {
    switch (a, b) {
    case (.intValue(let a), .intValue(let b)):
        return a < b ? .intValue(a) : .intValue(b)
    case (.doubleValue(let a), .doubleValue(let b)):
        return a < b ? .doubleValue(a) : .doubleValue(b)
    case (.stringValue(let a), .stringValue(let b)):
        return a < b ? .stringValue(a) : .stringValue(b)
    default:
        
 // XCTAssertTrue failed

func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum == n
}
```swift
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// isEqualToSumEven(n: 4) == false
// isEqualToSumEven(n: 6) == false
// isEqualToSumEven(n: 8) == true
func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum == n
}
<|file_separator|>
 // XCTAssertTrue failed

func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if n % i == 0 {
            sum += i
            if sum == n {
                return true
            }
        }
    }
    return false
}
```swift
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// isEqualToSumEven(n: 4) == false
// isEqualToSumEven(n: 6) == false
// isEqualToSumEven(n: 8) == true
func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if n % i == 0 {
            sum += i
            if sum == n {
                return true
            }
        }
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func isEqualToSumEven(n: Int) -> Bool {
    var count = 0
    for i in 2...n {
        if i % 2 == 0 {
            count += 1
            if count == 4 {
                return true
            }
        } else {
            count = 0
        }
    }
    return false
}
```swift
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// isEqualToSumEven(n: 4) == false
// isEqualToSumEven(n: 6) == false
// isEqualToSumEven(n: 8) == true
func isEqualToSumEven(n: Int) -> Bool {
    var count = 0
    for i in 2...n {
        if i % 2 == 0 {
            count += 1
            if count == 4 {
                return true
            }
        } else {
            count = 0
        }
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum == n
}
```swift
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// isEqualToSumEven(n: 4) == false
// isEqualToSumEven(n: 6) == false
// isEqualToSumEven(n: 8) == true
func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum == n
}
<|file_separator|>
 // XCTAssertTrue failed

func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
            if sum == n {
                return true
            }
        }
    }
    return false
}
```swift
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// isEqualToSumEven(n: 4) == false
// isEqualToSumEven(n: 6) == false
// isEqualToSumEven(n: 8) == true
func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
            if sum == n {
                return true
            }
        }
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum == n
}
```swift
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// isEqualToSumEven(n: 4) == false
// isEqualToSumEven(n: 6) == false
// isEqualToSumEven(n: 8) == true
func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
        }
    }
    return sum == n
}
<|file_separator|>
 // XCTAssertTrue failed

func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if n % i == 0 {
            sum += i
            if sum == n {
                return true
            }
        }
    }
    return false
}
```swift
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// isEqualToSumEven(n: 4) == false
// isEqualToSumEven(n: 6) == false
// isEqualToSumEven(n: 8) == true
func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if n % i == 0 {
            sum += i
            if sum == n {
                return true
            }
        }
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if n % i == 0 {
            sum += i
        }
    }
    return sum % 2 == 0
}
```swift
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// isEqualToSumEven(n: 4) == false
// isEqualToSumEven(n: 6) == false
// isEqualToSumEven(n: 8) == true
func isEqualToSumEven(n: Int) -> Bool {
    var sum = 0
    for i in 2...n {
        if n % i == 0 {
            sum += i
        }
    }
    return sum % 2 == 0
}
<|file_separator|>
 // XCTAssertTrue failed

func isEqualToSumEven(n: Int) -> Bool {
    // Write your code here
    var sum = 0
    var count = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
            count += 1
            if sum == n {
                return true
            }
            if count == 4 {
                return false
            }
        }
    }
    return false
}
```swift
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// isEqualToSumEven(n: 4) == false
// isEqualToSumEven(n: 6) == false
// isEqualToSumEven(n: 8) == true
func isEqualToSumEven(n: Int) -> Bool {
    // Write your code here
    var sum = 0
    var count = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
            count += 1
            if sum == n {
                return true
            }
            if count == 4 {
                return false
            }
        }
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func isEqualToSumEven(n: Int) -> Bool {
    // Write your code here
    var sum = 0
    var count = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
            count += 1
            if sum == n {
                return true
            }
            if count == 4 {
                return false
            }
        }
    }
    return false
}
```swift
// Evaluate whether the given number n can be written as the sum of exactly 4 positive even numbers
// Example
// isEqualToSumEven(n: 4) == false
// isEqualToSumEven(n: 6) == false
// isEqualToSumEven(n: 8) == true
func isEqualToSumEven(n: Int) -> Bool {
    // Write your code here
    var sum = 0
    var count = 0
    for i in 2...n {
        if i % 2 == 0 {
            sum += i
            count += 1
            if sum == n {
                return true
            }
            if count == 4 {
                return false
            }
        }
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
```swift
// The Brazilian factorial is defined as:
// brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1!
// where n > 0
// For example:
// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFactorial(n: Int) -> Int {
    // TODO: Your code here
    return 0
}
```swift
// The Brazilian factorial is defined as:
// brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1!
// where n > 0
// For example:
// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
    // TODO: Your code here
    return 0
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFactorial(n: Int) -> Int {
    if n == 0 {
        return 1
    }
    return n * specialFactorial(n: n - 1)
}
```swift
// The Brazilian factorial is defined as:
// brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1!
// where n > 0
// For example:
// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
    if n == 0 {
        return 1
    }
    return n * specialFactorial(n: n - 1)
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
```swift
// The Brazilian factorial is defined as:
// brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1!
// where n > 0
// For example:
// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
```swift
// The Brazilian factorial is defined as:
// brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1!
// where n > 0
// For example:
// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
```swift
// The Brazilian factorial is defined as:
// brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1!
// where n > 0
// For example:
// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}
```swift
// The Brazilian factorial is defined as:
// brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1!
// where n > 0
// For example:
// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
  var factorial = 1
  for i in 1...n {
    factorial *= i
  }
  return factorial
}

// The function will receive an integer as
 // XCTAssertTrue failed

func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
```swift
// The Brazilian factorial is defined as:
// brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1!
// where n > 0
// For example:
// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
```swift
// The Brazilian factorial is defined as:
// brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1!
// where n > 0
// For example:
// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
```swift
// The Brazilian factorial is defined as:
// brazilian_factorial(n) = n! * (n-1)! * (n-2)! * ... * 1!
// where n > 0
// For example:
// The function will receive an integer as input and should return the special
// factorial of this integer.
// specialFactorial(n: 4) == 288
func specialFactorial(n: Int) -> Int {
    var factorial = 1
    for i in 1...n {
        factorial *= i
    }
    return factorial
}
<|file_separator|>
 // XCTAssertTrue failed

func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for i in text {
        if i == " " {
            count += 1
            if count > 2 {
                result += "-"
            }
        } else {
            result += String(i)
            count = 0
        }
    }
    return result
}
```swift
// Given a string text, replace all spaces in it with underscores, 
// and if a string has more than 2 consecutive spaces, 
// then replace all consecutive spaces with - 
// fixSpaces(text: " Example") == "Example"
// fixSpaces(text: " Example 1") == "Example_1"
// fixSpaces(text: " Example 2") == "_Example_2"
// fixSpaces(text: " Example 3") == "_Example-3"
func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for i in text {
        if i == " " {
            count += 1
            if count > 2 {
                result += "-"
            }
        } else {
            result += String(i)
            count = 0
        }
    }
    return result
}

print(fixSpaces(text: " Example 3"))<|file_separator|>
 // XCTAssertTrue failed

func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for i in 0..<text.count {
        if text[text.index(text.startIndex, offsetBy: i)] == " " {
            count += 1
        } else {
            if count > 2 {
                result += "-"
                count = 0
            } else {
                result += "_"
                count = 0
            }
        }
        result += text[text.index(text.startIndex, offsetBy: i)]
    }
    return result
}
```swift
// Given a string text, replace all spaces in it with underscores, 
// and if a string has more than 2 consecutive spaces, 
// then replace all consecutive spaces with - 
// fixSpaces(text: " Example") == "Example"
// fixSpaces(text: " Example 1") == "Example_1"
// fixSpaces(text: " Example 2") == "_Example_2"
// fixSpaces(text: " Example 3") == "_Example-3"
func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for i in 0..<text.count {
        if text[text.index(text.startIndex, offsetBy: i)] == " " {
            count += 1
        } else {
            if count > 2 {
                result += "-"
                count = 0
            } else {
                result += "_"
                count = 0
            }
        }
        result += text[text.index(text.startIndex, offsetBy: i)]
    }
    return result
}
print(fixSpaces(text: " Example 3"))<|file_separator|>
result += text[text.index(text.startIndex, offsetBy: i)] // subscript 'subscript(_:)' requires that 'String.Index' conform to 'RangeExpression'

func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for char in text {
        if char == " " {
            count += 1
            if count == 2 {
                result += "-"
                count = 0
            }
        } else {
            result += char
            count = 0
        }
    }
    return result
}
```swift
// Given a string text, replace all spaces in it with underscores, 
// and if a string has more than 2 consecutive spaces, 
// then replace all consecutive spaces with - 
// fixSpaces(text: " Example") == "Example"
// fixSpaces(text: " Example 1") == "Example_1"
// fixSpaces(text: " Example 2") == "_Example_2"
// fixSpaces(text: " Example 3") == "_Example-3"
func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for char in text {
        if char == " " {
            count += 1
            if count == 2 {
                result += "-"
                count = 0
            }
        } else {
            result += char
            count = 0
        }
    }
    return result
}
<|file_separator|>
result += char // cannot convert value of type 'Character' to expected argument type 'String'

func fixSpaces(text: String) -> String {
    var result = ""
    var isSpace = false
    for char in text {
        if char == " " {
            if isSpace {
                result += "-"
            } else {
                result += "_"
                isSpace = true
            }
        } else {
            result += String(char)
            isSpace = false
        }
    }
    return result
}
```swift
// Given a string text, replace all spaces in it with underscores, 
// and if a string has more than 2 consecutive spaces, 
// then replace all consecutive spaces with - 
// fixSpaces(text: " Example") == "Example"
// fixSpaces(text: " Example 1") == "Example_1"
// fixSpaces(text: " Example 2") == "_Example_2"
// fixSpaces(text: " Example 3") == "_Example-3"
func fixSpaces(text: String) -> String {
    var result = ""
    var isSpace = false
    for char in text {
        if char == " " {
            if isSpace {
                result += "-"
            } else {
                result += "_"
                isSpace = true
            }
        } else {
            result += String(char)
            isSpace = false
        }
    }
    return result
}

print(fixSpaces(text: " Example 3"))<|file_separator|>```
 // XCTAssertTrue failed

func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for char in text {
        if char == " " {
            if count > 1 {
                result += "-"
            } else {
                result += "_"
            }
            count += 1
        } else {
            result += String(char)
            count = 0
        }
    }
    return result
}
```swift
// Given a string text, replace all spaces in it with underscores, 
// and if a string has more than 2 consecutive spaces, 
// then replace all consecutive spaces with - 
// fixSpaces(text: " Example") == "Example"
// fixSpaces(text: " Example 1") == "Example_1"
// fixSpaces(text: " Example 2") == "_Example_2"
// fixSpaces(text: " Example 3") == "_Example-3"
func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for char in text {
        if char == " " {
            if count > 1 {
                result += "-"
            } else {
                result += "_"
            }
            count += 1
        } else {
            result += String(char)
            count = 0
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for i in 0..<text.count {
        if text[i] == " " {
            count += 1
        } else {
            if count > 0 {
                result += "-"
                count = 0
            }
            result += String(text[i])
        }
    }
    if count > 0 {
        result += "-"
    }
    return result
}
```swift
// Given a string text, replace all spaces in it with underscores, 
// and if a string has more than 2 consecutive spaces, 
// then replace all consecutive spaces with - 
// fixSpaces(text: " Example") == "Example"
// fixSpaces(text: " Example 1") == "Example_1"
// fixSpaces(text: " Example 2") == "_Example_2"
// fixSpaces(text: " Example 3") == "_Example-3"
func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for i in 0..<text.count {
        if text[i] == " " {
            count += 1
        } else {
            if count > 0 {
                result += "-"
                count = 0
            }
            result += String(text[i])
        }
    }
    if count > 0 {
        result += "-"
    }
    return result
}
<|file_separator|>
if text[i] == " " { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(text[i]) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func fixSpaces(text: String) -> String {
    var result = ""
    var spaceCount = 0
    for char in text {
        if char == " " {
            spaceCount += 1
        } else {
            if spaceCount > 0 {
                result += "-"
                spaceCount = 0
            }
            result += String(char)
        }
    }
    return result
}
```swift
// Given a string text, replace all spaces in it with underscores, 
// and if a string has more than 2 consecutive spaces, 
// then replace all consecutive spaces with - 
// fixSpaces(text: " Example") == "Example"
// fixSpaces(text: " Example 1") == "Example_1"
// fixSpaces(text: " Example 2") == "_Example_2"
// fixSpaces(text: " Example 3") == "_Example-3"
func fixSpaces(text: String) -> String {
    var result = ""
    var spaceCount = 0
    for char in text {
        if char == " " {
            spaceCount += 1
        } else {
            if spaceCount > 0 {
                result += "-"
                spaceCount = 0
            }
            result += String(char)
        }
    }
    return result
}

print(fixSpaces(text: " Example 1"))
<|file_separator|>
 // XCTAssertTrue failed

func fixSpaces(text: String) -> String {
    var result = ""
    var lastSpace = false
    for char in text {
        if char == " " {
            if lastSpace {
                result += "-"
            } else {
                result += "_"
            }
            lastSpace = true
        } else {
            result += String(char)
            lastSpace = false
        }
    }
    return result
}
```swift
// Given a string text, replace all spaces in it with underscores, 
// and if a string has more than 2 consecutive spaces, 
// then replace all consecutive spaces with - 
// fixSpaces(text: " Example") == "Example"
// fixSpaces(text: " Example 1") == "Example_1"
// fixSpaces(text: " Example 2") == "_Example_2"
// fixSpaces(text: " Example 3") == "_Example-3"
func fixSpaces(text: String) -> String {
    var result = ""
    var lastSpace = false
    for char in text {
        if char == " " {
            if lastSpace {
                result += "-"
            } else {
                result += "_"
            }
            lastSpace = true
        } else {
            result += String(char)
            lastSpace = false
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for i in text {
        if i == " " {
            count += 1
            if count == 2 {
                result += "-"
                count = 0
            } else {
                result += "_"
            }
        } else {
            result += String(i)
            count = 0
        }
    }
    return result
}
```swift
// Given a string text, replace all spaces in it with underscores, 
// and if a string has more than 2 consecutive spaces, 
// then replace all consecutive spaces with - 
// fixSpaces(text: " Example") == "Example"
// fixSpaces(text: " Example 1") == "Example_1"
// fixSpaces(text: " Example 2") == "_Example_2"
// fixSpaces(text: " Example 3") == "_Example-3"
func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for i in text {
        if i == " " {
            count += 1
            if count == 2 {
                result += "-"
                count = 0
            } else {
                result += "_"
            }
        } else {
            result += String(i)
            count = 0
        }
    }
    return result
}

print(fixSpaces(text: " Example 3"))<|file_separator|>```
 // XCTAssertTrue failed

func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for i in text {
        if i == " " {
            count += 1
            if count == 2 {
                result += "-"
                count = 0
            }
        } else {
            result += String(i)
            count = 0
        }
    }
    return result
}
```swift
// Given a string text, replace all spaces in it with underscores, 
// and if a string has more than 2 consecutive spaces, 
// then replace all consecutive spaces with - 
// fixSpaces(text: " Example") == "Example"
// fixSpaces(text: " Example 1") == "Example_1"
// fixSpaces(text: " Example 2") == "_Example_2"
// fixSpaces(text: " Example 3") == "_Example-3"
func fixSpaces(text: String) -> String {
    var result = ""
    var count = 0
    for i in text {
        if i == " " {
            count += 1
            if count == 2 {
                result += "-"
                count = 0
            }
        } else {
            result += String(i)
            count = 0
        }
    }
    return result
}

print(fixSpaces(text: " Example 3"))<|file_separator|>
 // XCTAssertTrue failed

func fileNameCheck(fileName: String) -> String {
    let regex = try! NSRegularExpression(pattern: "[0-9]{3,}", options: .caseInsensitive)
    let matches = regex.matches(in: fileName, options: [], range: NSRange(location: 0, length: fileName.count))
    if matches.count > 0 {
        return "No"
    }
    let dotIndex = fileName.index(of: ".") ?? fileName.endIndex
    if dotIndex == fileName.endIndex {
        return "No"
    }
    let dot = fileName[dotIndex]
    if dot != "." {
        return "No"
    }
    let beforeDot = fileName[..<dotIndex]
    if beforeDot.count == 0 {
        return "No"
    }
    let afterDot = fileName[dotIndex...]
    if afterDot.count == 0 {
        return "No"
    }
    if afterDot.count > 3 {
        return "No"
    }
    let regex2 = try! NSRegularExpression(pattern: "[a-zA-Z]{1}", options: .caseInsensitive)
    let matches2 = regex2.matches(in: beforeDot, options: [], range: NSRange(location: 0, length: beforeDot.count))
    if matches2.count == 0 {
        return "No"
    }
    let regex3 = try! NSRegularExpression(pattern: "txt|exe|dll", options: .caseInsensitive)
    let matches3 = regex3.matches(in: afterDot, options: [], range: NSRange(location: 0, length: afterDot.count))
    if matches3.count == 0 {
        return "No"
    }
    return "Yes"
}
```swift
// Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and returns 'No' otherwise.
// A file's name is considered to be valid if and only if all the following conditions 
// are met:
// - There should not be more than three digits ('0'-'9') in the file's name.
// - The file's name contains exactly one dot '.'
// - The substring before the dot should not be empty, and it starts with a letter from 
// the latin alphapet ('a'-'z' and 'A'-'Z').
// - The substring after the dot should be one of these: ['txt', 'exe', 'dll']
// Examples:
// fileNameCheck(fileName: "example.txt") == "Yes"
// fileNameCheck(fileName: "1example.dll") == "No"
func fileNameCheck(fileName: String) -> String {
    let regex = try! NSRegularExpression(pattern: "[0-9]{3,}", options: .caseInsensitive)
    let matches = regex.matches(in: fileName, options: [], range: NSRange(location: 0, length: fileName.count))
    if matches.count > 0 {
        return "No"
    }
    let dotIndex = fileName.index(of: ".") ?? fileName.endIndex
    if dotIndex == fileName.endIndex {
        return "No"
    }
    let dot = fileName[dotIndex]
    if dot != "." {
        return "No"
    }
    let beforeDot = fileName[..<dotIndex]
    if beforeDot.count == 0 {
        return "No"
    }
    let afterDot = fileName[dotIndex...]
    if afterDot.count == 0 {
        return "No"
    }
    if afterDot.count > 3 {
        return "No"
    }
    let regex2 = try! NSRegularExpression(pattern: "[a-zA-Z]{1}", options: .caseInsensitive)
    let matches2 = regex2.matches(in: beforeDot, options: [], range: NSRange(location: 0, length: beforeDot.count))
    if matches2.count == 0 {
        return "No"
    }
    let regex3 = try! NSRegularExpression(pattern: "txt|exe|dll", options: .caseInsensitive)
    let matches3 = regex3.matches(in: afterDot, options: [], range: NSRange(location: 0, length: afterDot.count))
    if matches3.count == 0 {
        return "No"
    }
    return "Yes"
}
<|file_separator|>
let dotIndex = fileName.index(of: ".") ?? fileName.endIndex // 'index(of:)' is deprecated: renamed to 'firstIndex(of:)'
let matches2 = regex2.matches(in: beforeDot, options: [], range: NSRange(location: 0, length: beforeDot.count)) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'
let matches3 = regex3.matches(in: afterDot, options: [], range: NSRange(location: 0, length: afterDot.count)) // cannot convert value of type 'String.SubSequence' (aka 'Substring') to expected argument type 'String'

func fileNameCheck(fileName: String) -> String {
  let regex = try! NSRegularExpression(pattern: "^[a-zA-Z]+\\.[a-zA-Z0-9]{3,3}$")
  let matches = regex.matches(in: fileName, options: [], range: NSRange(location: 0, length: fileName.count))
  return matches.count == 1 ? "Yes" : "No"
}
```swift
// Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and returns 'No' otherwise.
// A file's name is considered to be valid if and only if all the following conditions 
// are met:
// - There should not be more than three digits ('0'-'9') in the file's name.
// - The file's name contains exactly one dot '.'
// - The substring before the dot should not be empty, and it starts with a letter from 
// the latin alphapet ('a'-'z' and 'A'-'Z').
// - The substring after the dot should be one of these: ['txt', 'exe', 'dll']
// Examples:
// fileNameCheck(fileName: "example.txt") == "Yes"
// fileNameCheck(fileName: "1example.dll") == "No"
func fileNameCheck(fileName: String) -> String {
  let regex = try! NSRegularExpression(pattern: "^[a-zA-Z]+\\.[a-zA-Z0-9]{3,3}$")
  let matches = regex.matches(in: fileName, options: [], range: NSRange(location: 0, length: fileName.count))
  return matches.count == 1 ? "Yes" : "No"
}
<|file_separator|>
 // XCTAssertTrue failed

```swift
// Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and returns 'No' otherwise.
// A file's name is considered to be valid if and only if all the following conditions 
// are met:
// - There should not be more than three digits ('0'-'9') in the file's name.
// - The file's name contains exactly one dot '.'
// - The substring before the dot should not be empty, and it starts with a letter from 
// the latin alphapet ('a'-'z' and 'A'-'Z').
// - The substring after the dot should be one of these: ['txt', 'exe', 'dll']
// Examples:
// fileNameCheck(fileName: "example.txt") == "Yes"
// fileNameCheck(fileName: "1example.dll") == "No"
func fileNameCheck(fileName: String) -> String {
    let regex = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex2 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex3 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex4 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex5 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex6 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex7 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex8 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex9 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex10 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex11 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex12 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex13 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex14 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex15 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex16 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex17 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex18 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex19 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex20 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex21 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex22 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex23 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex24 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex25 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex26 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}"
    let regex27 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{3}"
    let regex28 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{
XCTAssertTrue(fileNameCheck(fileName: "example.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "1example.dll") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "s1sdf3.asd") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "K.dll") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "MY16FILE3.exe") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "His12FILE94.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "_Y.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "?aREYA.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "/thisIsValid.dll") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.wow") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.txtexe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "#this2I4s5valid.ten") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "@this1Is6Valid.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIs12valid.6exe4.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "all.exe.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "I563_No.exe") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "Is3youfault.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "noOne#knows.dll") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "1I563_Yes3.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "I563_Yes3.txtt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "final..txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "final132") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "F4indsartal132.") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: ".txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "s.") == "No") // cannot find 'fileNameCheck' in scope

func fileNameCheck(fileName: String) -> String {
    let regex = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{1,3}"
    let regexTest = NSPredicate(format: "SELF MATCHES %@", regex)
    return regexTest.evaluate(with: fileName) ? "Yes" : "No"
}
```swift
// Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and returns 'No' otherwise.
// A file's name is considered to be valid if and only if all the following conditions 
// are met:
// - There should not be more than three digits ('0'-'9') in the file's name.
// - The file's name contains exactly one dot '.'
// - The substring before the dot should not be empty, and it starts with a letter from 
// the latin alphapet ('a'-'z' and 'A'-'Z').
// - The substring after the dot should be one of these: ['txt', 'exe', 'dll']
// Examples:
// fileNameCheck(fileName: "example.txt") == "Yes"
// fileNameCheck(fileName: "1example.dll") == "No"
func fileNameCheck(fileName: String) -> String {
    let regex = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}[.]{1}[a-zA-Z]{1,3}"
    let regexTest = NSPredicate(format: "SELF MATCHES %@", regex)
    return regexTest.evaluate(with: fileName) ? "Yes" : "No"
}
<|file_separator|>
 // XCTAssertTrue failed

func fileNameCheck(fileName: String) -> String {
    let regex = try! NSRegularExpression(pattern: "[0-9]{1,3}", options: .caseInsensitive)
    let matches = regex.matches(in: fileName, options: [], range: NSRange(location: 0, length: fileName.count))
    if matches.count > 3 {
        return "No"
    }
    let dotIndex = fileName.index(of: ".")
    if dotIndex == nil {
        return "No"
    }
    let dot = fileName[dotIndex!]
    if dot != "." {
        return "No"
    }
    let beforeDot = fileName[..<dotIndex!]
    if beforeDot.isEmpty {
        return "No"
    }
    let afterDot = fileName[dotIndex!...]
    if afterDot != "txt" && afterDot != "exe" && afterDot != "dll" {
        return "No"
    }
    return "Yes"
}
```swift
// Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and returns 'No' otherwise.
// A file's name is considered to be valid if and only if all the following conditions 
// are met:
// - There should not be more than three digits ('0'-'9') in the file's name.
// - The file's name contains exactly one dot '.'
// - The substring before the dot should not be empty, and it starts with a letter from 
// the latin alphapet ('a'-'z' and 'A'-'Z').
// - The substring after the dot should be one of these: ['txt', 'exe', 'dll']
// Examples:
// fileNameCheck(fileName: "example.txt") == "Yes"
// fileNameCheck(fileName: "1example.dll") == "No"
func fileNameCheck(fileName: String) -> String {
    let regex = try! NSRegularExpression(pattern: "[0-9]{1,3}", options: .caseInsensitive)
    let matches = regex.matches(in: fileName, options: [], range: NSRange(location: 0, length: fileName.count))
    if matches.count > 3 {
        return "No"
    }
    let dotIndex = fileName.index(of: ".")
    if dotIndex == nil {
        return "No"
    }
    let dot = fileName[dotIndex!]
    if dot != "." {
        return "No"
    }
    let beforeDot = fileName[..<dotIndex!]
    if beforeDot.isEmpty {
        return "No"
    }
    let afterDot = fileName[dotIndex!...]
    if afterDot != "txt" && afterDot != "exe" && afterDot != "dll" {
        return "No"
    }
    return "Yes"
}
<|file_separator|>
let dotIndex = fileName.index(of: ".") // 'index(of:)' is deprecated: renamed to 'firstIndex(of:)'
 // XCTAssertTrue failed

func fileNameCheck(fileName: String) -> String {
    let regex = "^[a-zA-Z]+\\.[a-zA-Z]+$"
    let regexPattern = try! NSRegularExpression(pattern: regex, options: [])
    let matches = regexPattern.matches(in: fileName, options: [], range: NSRange(location: 0, length: fileName.count))
    if matches.count == 0 {
        return "No"
    }
    let match = matches[0]
    let range = match.range(at: 0)
    let substring = (fileName as NSString).substring(with: range)
    let substringArray = substring.components(separatedBy: ".")
    if substringArray.count > 2 {
        return "No"
    }
    if substringArray.count == 2 {
        if substringArray[1] != "txt" && substringArray[1] != "exe" && substringArray[1] != "dll" {
            return "No"
        }
    }
    let digits = substringArray[0].components(separatedBy: "")
    if digits.count > 3 {
        return "No"
    }
    for digit in digits {
        if Int(digit) == nil {
            return "No"
        }
    }
    return "Yes"
}
```swift
// Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and returns 'No' otherwise.
// A file's name is considered to be valid if and only if all the following conditions 
// are met:
// - There should not be more than three digits ('0'-'9') in the file's name.
// - The file's name contains exactly one dot '.'
// - The substring before the dot should not be empty, and it starts with a letter from 
// the latin alphapet ('a'-'z' and 'A'-'Z').
// - The substring after the dot should be one of these: ['txt', 'exe', 'dll']
// Examples:
// fileNameCheck(fileName: "example.txt") == "Yes"
// fileNameCheck(fileName: "1example.dll") == "No"
func fileNameCheck(fileName: String) -> String {
    let regex = "^[a-zA-Z]+\\.[a-zA-Z]+$"
    let regexPattern = try! NSRegularExpression(pattern: regex, options: [])
    let matches = regexPattern.matches(in: fileName, options: [], range: NSRange(location: 0, length: fileName.count))
    if matches.count == 0 {
        return "No"
    }
    let match = matches[0]
    let range = match.range(at: 0)
    let substring = (fileName as NSString).substring(with: range)
    let substringArray = substring.components(separatedBy: ".")
    if substringArray.count > 2 {
        return "No"
    }
    if substringArray.count == 2 {
        if substringArray[1] != "txt" && substringArray[1] != "exe" && substringArray[1] != "dll" {
            return "No"
        }
    }
    let digits = substringArray[0].components(separatedBy: "")
    if digits.count > 3 {
        return "No"
    }
    for digit in digits {
        if Int(digit) == nil {
            return "No"
        }
    }
    return "Yes"
}
<|file_separator|>
 // XCTAssertTrue failed

```swift
// Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and returns 'No' otherwise.
// A file's name is considered to be valid if and only if all the following conditions 
// are met:
// - There should not be more than three digits ('0'-'9') in the file's name.
// - The file's name contains exactly one dot '.'
// - The substring before the dot should not be empty, and it starts with a letter from 
// the latin alphapet ('a'-'z' and 'A'-'Z').
// - The substring after the dot should be one of these: ['txt', 'exe', 'dll']
// Examples:
// fileNameCheck(fileName: "example.txt") == "Yes"
// fileNameCheck(fileName: "1example.dll") == "No"
func fileNameCheck(fileName: String) -> String {
    let regex = "[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+"
    let regex2 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex3 = "[a-zA-Z]+"
    let regex4 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex5 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex6 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex7 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex8 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex9 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex10 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex11 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex12 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex13 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex14 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex15 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex16 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex17 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex18 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex19 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex20 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex21 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex22 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex23 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex24 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex25 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex26 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex27 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex28 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex29 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex30 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex31 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex32 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex33 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex34 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex35 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex36 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex37 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex38 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex39 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex40 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex41 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex42 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex43 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex44 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex45 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex46 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex47 = "[a-zA-Z]+\\.[a-zA-Z]+"
XCTAssertTrue(fileNameCheck(fileName: "example.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "1example.dll") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "s1sdf3.asd") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "K.dll") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "MY16FILE3.exe") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "His12FILE94.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "_Y.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "?aREYA.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "/thisIsValid.dll") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.wow") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.txtexe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "#this2I4s5valid.ten") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "@this1Is6Valid.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIs12valid.6exe4.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "all.exe.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "I563_No.exe") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "Is3youfault.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "noOne#knows.dll") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "1I563_Yes3.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "I563_Yes3.txtt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "final..txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "final132") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "F4indsartal132.") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: ".txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "s.") == "No") // cannot find 'fileNameCheck' in scope

```swift
// Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and returns 'No' otherwise.
// A file's name is considered to be valid if and only if all the following conditions 
// are met:
// - There should not be more than three digits ('0'-'9') in the file's name.
// - The file's name contains exactly one dot '.'
// - The substring before the dot should not be empty, and it starts with a letter from 
// the latin alphapet ('a'-'z' and 'A'-'Z').
// - The substring after the dot should be one of these: ['txt', 'exe', 'dll']
// Examples:
// fileNameCheck(fileName: "example.txt") == "Yes"
// fileNameCheck(fileName: "1example.dll") == "No"
func fileNameCheck(fileName: String) -> String {
    var result = "Yes"
    let regex = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex1 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex2 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex3 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex4 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex5 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex6 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex7 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex8 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex9 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex10 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex11 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex12 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex13 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex14 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex15 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex16 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex17 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex18 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex19 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex20 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex21 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex22 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex23 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex24 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex25 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex26 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex27 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex28 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}\\.[a-zA-Z]{3}"
    let regex29 = "[a-zA-Z]{1}[a-zA-Z0-9]{0,2}"
    let regex30 = "[a-zA-Z]{1}[a-zA-Z0
XCTAssertTrue(fileNameCheck(fileName: "example.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "1example.dll") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "s1sdf3.asd") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "K.dll") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "MY16FILE3.exe") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "His12FILE94.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "_Y.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "?aREYA.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "/thisIsValid.dll") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.wow") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.txtexe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "#this2I4s5valid.ten") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "@this1Is6Valid.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIs12valid.6exe4.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "all.exe.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "I563_No.exe") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "Is3youfault.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "noOne#knows.dll") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "1I563_Yes3.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "I563_Yes3.txtt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "final..txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "final132") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "F4indsartal132.") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: ".txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "s.") == "No") // cannot find 'fileNameCheck' in scope

```swift
// Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and returns 'No' otherwise.
// A file's name is considered to be valid if and only if all the following conditions 
// are met:
// - There should not be more than three digits ('0'-'9') in the file's name.
// - The file's name contains exactly one dot '.'
// - The substring before the dot should not be empty, and it starts with a letter from 
// the latin alphapet ('a'-'z' and 'A'-'Z').
// - The substring after the dot should be one of these: ['txt', 'exe', 'dll']
// Examples:
// fileNameCheck(fileName: "example.txt") == "Yes"
// fileNameCheck(fileName: "1example.dll") == "No"
func fileNameCheck(fileName: String) -> String {
    let regex = "[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+"
    let regex2 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex3 = "[a-zA-Z]+"
    let regex4 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex5 = "[a-zA-Z]+"
    let regex6 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex7 = "[a-zA-Z]+"
    let regex8 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex9 = "[a-zA-Z]+"
    let regex10 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex11 = "[a-zA-Z]+"
    let regex12 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex13 = "[a-zA-Z]+"
    let regex14 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex15 = "[a-zA-Z]+"
    let regex16 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex17 = "[a-zA-Z]+"
    let regex18 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex19 = "[a-zA-Z]+"
    let regex20 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex21 = "[a-zA-Z]+"
    let regex22 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex23 = "[a-zA-Z]+"
    let regex24 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex25 = "[a-zA-Z]+"
    let regex26 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex27 = "[a-zA-Z]+"
    let regex28 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex29 = "[a-zA-Z]+"
    let regex30 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex31 = "[a-zA-Z]+"
    let regex32 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex33 = "[a-zA-Z]+"
    let regex34 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex35 = "[a-zA-Z]+"
    let regex36 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex37 = "[a-zA-Z]+"
    let regex38 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex39 = "[a-zA-Z]+"
    let regex40 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex41 = "[a-zA-Z]+"
    let regex42 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex43 = "[a-zA-Z]+"
    let regex44 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex45 = "[a-zA-Z]+"
    let regex46 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex47 = "[a-zA-Z]+"
    let regex48 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex49 = "[a-zA-Z]+"
    let regex50 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex51 = "[a-zA-Z]+"
    let regex52 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex53 = "[a-zA-Z]+"
    let regex54 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex55 = "[a-zA-Z]+"
    let regex56 = "[a-zA-Z]+\\.[a-zA-Z]+"
    let regex57 = "[a-
XCTAssertTrue(fileNameCheck(fileName: "example.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "1example.dll") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "s1sdf3.asd") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "K.dll") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "MY16FILE3.exe") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "His12FILE94.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "_Y.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "?aREYA.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "/thisIsValid.dll") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.wow") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.txtexe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "#this2I4s5valid.ten") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "@this1Is6Valid.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIs12valid.6exe4.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "all.exe.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "I563_No.exe") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "Is3youfault.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "noOne#knows.dll") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "1I563_Yes3.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "I563_Yes3.txtt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "final..txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "final132") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "F4indsartal132.") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: ".txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "s.") == "No") // cannot find 'fileNameCheck' in scope

```swift
// Create a function which takes a string representing a file's name, and returns
// 'Yes' if the the file's name is valid, and returns 'No' otherwise.
// A file's name is considered to be valid if and only if all the following conditions 
// are met:
// - There should not be more than three digits ('0'-'9') in the file's name.
// - The file's name contains exactly one dot '.'
// - The substring before the dot should not be empty, and it starts with a letter from 
// the latin alphapet ('a'-'z' and 'A'-'Z').
// - The substring after the dot should be one of these: ['txt', 'exe', 'dll']
// Examples:
// fileNameCheck(fileName: "example.txt") == "Yes"
// fileNameCheck(fileName: "1example.dll") == "No"
func fileNameCheck(fileName: String) -> String {
    let regex = "^[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex2 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex3 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex4 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex5 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex6 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex7 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex8 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex9 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex10 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex11 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex12 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex13 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+$"
    let regex14 = "^[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a-zA-Z]+\\.[a
XCTAssertTrue(fileNameCheck(fileName: "example.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "1example.dll") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "s1sdf3.asd") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "K.dll") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "MY16FILE3.exe") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "His12FILE94.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "_Y.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "?aREYA.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "/thisIsValid.dll") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.wow") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIsValid.txtexe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "#this2I4s5valid.ten") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "@this1Is6Valid.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "thisIs12valid.6exe4.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "all.exe.txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "I563_No.exe") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "Is3youfault.txt") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "noOne#knows.dll") == "Yes") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "1I563_Yes3.exe") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "I563_Yes3.txtt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "final..txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "final132") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "F4indsartal132.") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: ".txt") == "No") // cannot find 'fileNameCheck' in scope
XCTAssertTrue(fileNameCheck(fileName: "s.") == "No") // cannot find 'fileNameCheck' in scope

func wordsInSentence(sentence: String) -> String {
    var result = ""
    var words = sentence.split(separator: " ")
    for i in 0..<words.count {
        if isPrime(words[i].count) {
            result += words[i]
            if i < words.count - 1 {
                result += " "
            }
        }
    }
    return result
}

func isPrime(_ num: Int) -> Bool {
    if num <= 1 {
        return false
    }
    for i in 2..<num {
        if num % i == 0 {
            return false
        }
    }
    return true
}
```swift
// You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Example 1:
// Example 2:
// Constraints:
// * 1 <= len(sentence) <= 100
// * sentence contains only letters
// wordsInSentence(sentence: "This is a test") == "is"
// wordsInSentence(sentence: "lets go for swimming") == "go for"
func wordsInSentence(sentence: String) -> String {
    var result = ""
    var words = sentence.split(separator: " ")
    for i in 0..<words.count {
        if isPrime(words[i].count) {
            result += words[i]
            if i < words.count - 1 {
                result += " "
            }
        }
    }
    return result
}

func isPrime(_ num: Int) -> Bool {
    if num <= 1 {
        return false
    }
    for i in 2..<num {
        if num % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
var words = sentence.split(separator: " ") // variable 'words' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func wordsInSentence(sentence: String) -> String {
    // Write your code here
    var result = ""
    var words = sentence.split(separator: " ")
    var primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997]
    for word in words {
        if primes.contains(word.count) {
            result += word + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}
```swift
// You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Example 1:
// Example 2:
// Constraints:
// * 1 <= len(sentence) <= 100
// * sentence contains only letters
// wordsInSentence(sentence: "This is a test") == "is"
// wordsInSentence(sentence: "lets go for swimming") == "go for"
func wordsInSentence(sentence: String) -> String {
    // Write your code here
    var result = ""
    var words = sentence.split(separator: " ")
    var primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997]
    for word in words {
        if primes.contains(word.count) {
            result += word + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}
<|file_separator|>```
var words = sentence.split(separator: " ") // variable 'words' was never mutated; consider changing to 'let' constant
var primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997] // variable 'primes' was never mutated; consider changing to 'let' constant

func wordsInSentence(sentence: String) -> String {
    var words = sentence.split(separator: " ")
    var result = ""
    for i in 0..<words.count {
        if isPrime(number: Int(words[i])!) {
            result += words[i]
            if i != words.count - 1 {
                result += " "
            }
        }
    }
    return result
}

func isPrime(number: Int) -> Bool {
    if number <= 1 {
        return false
    }
    for i in 2..<number {
        if number % i == 0 {
            return false
        }
    }
    return true
}
```swift
// You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Example 1:
// Example 2:
// Constraints:
// * 1 <= len(sentence) <= 100
// * sentence contains only letters
// wordsInSentence(sentence: "This is a test") == "is"
// wordsInSentence(sentence: "lets go for swimming") == "go for"
func wordsInSentence(sentence: String) -> String {
    var words = sentence.split(separator: " ")
    var result = ""
    for i in 0..<words.count {
        if isPrime(number: Int(words[i])!) {
            result += words[i]
            if i != words.count - 1 {
                result += " "
            }
        }
    }
    return result
}

func isPrime(number: Int) -> Bool {
    if number <= 1 {
        return false
    }
    for i in 2..<number {
        if number % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
var words = sentence.split(separator: " ") // variable 'words' was never mutated; consider changing to 'let' constant
 // Fatal error: Unexpectedly found nil while unwrapping an Optional value

func wordsInSentence(sentence: String) -> String {
    let words = sentence.split(separator: " ")
    var result = ""
    for word in words {
        if isPrime(word.count) {
            result += word + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}

func isPrime(_ number: Int) -> Bool {
    if number <= 1 {
        return false
    }
    for i in 2..<number {
        if number % i == 0 {
            return false
        }
    }
    return true
}
```swift
// You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Example 1:
// Example 2:
// Constraints:
// * 1 <= len(sentence) <= 100
// * sentence contains only letters
// wordsInSentence(sentence: "This is a test") == "is"
// wordsInSentence(sentence: "lets go for swimming") == "go for"
func wordsInSentence(sentence: String) -> String {
    let words = sentence.split(separator: " ")
    var result = ""
    for word in words {
        if isPrime(word.count) {
            result += word + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}

func isPrime(_ number: Int) -> Bool {
    if number <= 1 {
        return false
    }
    for i in 2..<number {
        if number % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>

func wordsInSentence(sentence: String) -> String {
    var result = ""
    var words = sentence.split(separator: " ")
    for i in 0..<words.count {
        if isPrime(n: Int(words[i])!) {
            result += words[i] + " "
        }
    }
    return result
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Example 1:
// Example 2:
// Constraints:
// * 1 <= len(sentence) <= 100
// * sentence contains only letters
// wordsInSentence(sentence: "This is a test") == "is"
// wordsInSentence(sentence: "lets go for swimming") == "go for"
func wordsInSentence(sentence: String) -> String {
    var result = ""
    var words = sentence.split(separator: " ")
    for i in 0..<words.count {
        if isPrime(n: Int(words[i])!) {
            result += words[i] + " "
        }
    }
    return result
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
var words = sentence.split(separator: " ") // variable 'words' was never mutated; consider changing to 'let' constant
 // Fatal error: Unexpectedly found nil while unwrapping an Optional value

func wordsInSentence(sentence: String) -> String {
    var result = ""
    var words = sentence.split(separator: " ")
    var isPrime = true
    for i in 0..<words.count {
        for j in 0..<words[i].count {
            if j == 0 {
                isPrime = true
                for k in 2..<j {
                    if j % k == 0 {
                        isPrime = false
                        break
                    }
                }
                if isPrime {
                    result += String(words[i][j])
                }
            }
        }
    }
    return result
}
```swift
// You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Example 1:
// Example 2:
// Constraints:
// * 1 <= len(sentence) <= 100
// * sentence contains only letters
// wordsInSentence(sentence: "This is a test") == "is"
// wordsInSentence(sentence: "lets go for swimming") == "go for"
func wordsInSentence(sentence: String) -> String {
    var result = ""
    var words = sentence.split(separator: " ")
    var isPrime = true
    for i in 0..<words.count {
        for j in 0..<words[i].count {
            if j == 0 {
                isPrime = true
                for k in 2..<j {
                    if j % k == 0 {
                        isPrime = false
                        break
                    }
                }
                if isPrime {
                    result += String(words[i][j])
                }
            }
        }
    }
    return result
}
<|file_separator|>
result += String(words[i][j]) // no exact matches in call to subscript
result += String(words[i][j]) // no exact matches in call to subscript

func wordsInSentence(sentence: String) -> String {
    // Write your code here
    var words = sentence.split(separator: " ")
    var result = ""
    for i in 0..<words.count {
        if isPrime(words[i].count) {
            result += words[i] + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}

func isPrime(_ n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Example 1:
// Example 2:
// Constraints:
// * 1 <= len(sentence) <= 100
// * sentence contains only letters
// wordsInSentence(sentence: "This is a test") == "is"
// wordsInSentence(sentence: "lets go for swimming") == "go for"
func wordsInSentence(sentence: String) -> String {
    // Write your code here
    var words = sentence.split(separator: " ")
    var result = ""
    for i in 0..<words.count {
        if isPrime(words[i].count) {
            result += words[i] + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}

func isPrime(_ n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2..<n {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
var words = sentence.split(separator: " ") // variable 'words' was never mutated; consider changing to 'let' constant

func wordsInSentence(sentence: String) -> String {
    var result = ""
    var words = sentence.split(separator: " ")
    for i in 0..<words.count {
        if isPrime(words[i].count) {
            result += words[i] + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}

func isPrime(_ num: Int) -> Bool {
    if num <= 1 {
        return false
    }
    for i in 2..<num {
        if num % i == 0 {
            return false
        }
    }
    return true
}
```swift
// You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Example 1:
// Example 2:
// Constraints:
// * 1 <= len(sentence) <= 100
// * sentence contains only letters
// wordsInSentence(sentence: "This is a test") == "is"
// wordsInSentence(sentence: "lets go for swimming") == "go for"
func wordsInSentence(sentence: String) -> String {
    var result = ""
    var words = sentence.split(separator: " ")
    for i in 0..<words.count {
        if isPrime(words[i].count) {
            result += words[i] + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}

func isPrime(_ num: Int) -> Bool {
    if num <= 1 {
        return false
    }
    for i in 2..<num {
        if num % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
var words = sentence.split(separator: " ") // variable 'words' was never mutated; consider changing to 'let' constant

func wordsInSentence(sentence: String) -> String {
    let words = sentence.split(separator: " ")
    let primeNumbers = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997]
    var result = ""
    for word in words {
        if primeNumbers.contains(word.count) {
            result += word + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}
```swift
// You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Example 1:
// Example 2:
// Constraints:
// * 1 <= len(sentence) <= 100
// * sentence contains only letters
// wordsInSentence(sentence: "This is a test") == "is"
// wordsInSentence(sentence: "lets go for swimming") == "go for"
func wordsInSentence(sentence: String) -> String {
    let words = sentence.split(separator: " ")
    let primeNumbers = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997]
    var result = ""
    for word in words {
        if primeNumbers.contains(word.count) {
            result += word + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}
<|file_separator|>

func wordsInSentence(sentence: String) -> String {
    let words = sentence.split(separator: " ")
    var result = ""
    for word in words {
        if isPrime(word.count) {
            result += word + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}

func isPrime(_ num: Int) -> Bool {
    if num <= 1 {
        return false
    }
    for i in 2..<num {
        if num % i == 0 {
            return false
        }
    }
    return true
}
```swift
// You are given a string representing a sentence,
// the sentence contains some words separated by a space,
// and you have to return a string that contains the words from the original sentence,
// whose lengths are prime numbers,
// the order of the words in the new string should be the same as the original one.
// Example 1:
// Example 2:
// Constraints:
// * 1 <= len(sentence) <= 100
// * sentence contains only letters
// wordsInSentence(sentence: "This is a test") == "is"
// wordsInSentence(sentence: "lets go for swimming") == "go for"
func wordsInSentence(sentence: String) -> String {
    let words = sentence.split(separator: " ")
    var result = ""
    for word in words {
        if isPrime(word.count) {
            result += word + " "
        }
    }
    return result.trimmingCharacters(in: .whitespaces)
}

func isPrime(_ num: Int) -> Bool {
    if num <= 1 {
        return false
    }
    for i in 2..<num {
        if num % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>

func simplify(x: String, n: String) -> Bool {
    let x = x.split(separator: "/").map { Int($0)! }
    let n = n.split(separator: "/").map { Int($0)! }
    let x = x[0] * n[1]
    let n = x[1] * n[0]
    return x == n
}
```swift
// Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a whole number and false
// otherwise. Both x and n, are string representation of a fraction, and have the following format,
// <numerator>/<denominator> where both numerator and denominator are positive whole numbers.
// You can assume that x, and n are valid fractions, and do not have zero as denominator.
// simplify(x: "1/5", n: "5/1") == true
// simplify(x: "1/6", n: "2/1") == false
// simplify(x: "7/10", n: "10/2") == false
func simplify(x: String, n: String) -> Bool {
    let x = x.split(separator: "/").map { Int($0)! }
    let n = n.split(separator: "/").map { Int($0)! }
    let x = x[0] * n[1]
    let n = x[1] * n[0]
    return x == n
}
<|file_separator|>```
let x = x[0] * n[1] // invalid redeclaration of 'x'

func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/").map { Int($0)! }
    let n = n.components(separatedBy: "/").map { Int($0)! }
    let a = x[0] * n[1]
    let b = x[1] * n[0]
    return a == b
}
```swift
// Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a whole number and false
// otherwise. Both x and n, are string representation of a fraction, and have the following format,
// <numerator>/<denominator> where both numerator and denominator are positive whole numbers.
// You can assume that x, and n are valid fractions, and do not have zero as denominator.
// simplify(x: "1/5", n: "5/1") == true
// simplify(x: "1/6", n: "2/1") == false
// simplify(x: "7/10", n: "10/2") == false
func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/").map { Int($0)! }
    let n = n.components(separatedBy: "/").map { Int($0)! }
    let a = x[0] * n[1]
    let b = x[1] * n[0]
    return a == b
}
<|file_separator|>
 // XCTAssertTrue failed

func simplify(x: String, n: String) -> Bool {
    let x = x.split(separator: "/").map { Int($0)! }
    let n = n.split(separator: "/").map { Int($0)! }
    let x_n = x[0] * n[1] + x[1] * n[0]
    let n_n = x[1] * n[1]
    return x_n % n_n == 0
}
```swift
// Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a whole number and false
// otherwise. Both x and n, are string representation of a fraction, and have the following format,
// <numerator>/<denominator> where both numerator and denominator are positive whole numbers.
// You can assume that x, and n are valid fractions, and do not have zero as denominator.
// simplify(x: "1/5", n: "5/1") == true
// simplify(x: "1/6", n: "2/1") == false
// simplify(x: "7/10", n: "10/2") == false
func simplify(x: String, n: String) -> Bool {
    let x = x.split(separator: "/").map { Int($0)! }
    let n = n.split(separator: "/").map { Int($0)! }
    let x_n = x[0] * n[1] + x[1] * n[0]
    let n_n = x[1] * n[1]
    return x_n % n_n == 0
}
<|file_separator|>
 // XCTAssertTrue failed

func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/").map { Int($0)! }
    let n = n.components(separatedBy: "/").map { Int($0)! }
    let x1 = x[0] * n[1]
    let x2 = x[1] * n[0]
    let x3 = x1 + x2
    return x3 % x[1] == 0
}
```swift
// Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a whole number and false
// otherwise. Both x and n, are string representation of a fraction, and have the following format,
// <numerator>/<denominator> where both numerator and denominator are positive whole numbers.
// You can assume that x, and n are valid fractions, and do not have zero as denominator.
// simplify(x: "1/5", n: "5/1") == true
// simplify(x: "1/6", n: "2/1") == false
// simplify(x: "7/10", n: "10/2") == false
func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/").map { Int($0)! }
    let n = n.components(separatedBy: "/").map { Int($0)! }
    let x1 = x[0] * n[1]
    let x2 = x[1] * n[0]
    let x3 = x1 + x2
    return x3 % x[1] == 0
}
<|file_separator|>
 // XCTAssertTrue failed

func simplify(x: String, n: String) -> Bool {
    let x = x.split(separator: "/").map{Int($0)!}
    let n = n.split(separator: "/").map{Int($0)!}
    let gcd = gcd(x[0], n[0])
    let x = x[0] / gcd
    let n = n[0] / gcd
    return x * n == x[0] * n[0]
}

func gcd(_ a: Int, _ b: Int) -> Int {
    if b == 0 {
        return a
    } else {
        return gcd(b, a % b)
    }
}
```swift
// Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a whole number and false
// otherwise. Both x and n, are string representation of a fraction, and have the following format,
// <numerator>/<denominator> where both numerator and denominator are positive whole numbers.
// You can assume that x, and n are valid fractions, and do not have zero as denominator.
// simplify(x: "1/5", n: "5/1") == true
// simplify(x: "1/6", n: "2/1") == false
// simplify(x: "7/10", n: "10/2") == false
func simplify(x: String, n: String) -> Bool {
    let x = x.split(separator: "/").map{Int($0)!}
    let n = n.split(separator: "/").map{Int($0)!}
    let gcd = gcd(x[0], n[0])
    let x = x[0] / gcd
    let n = n[0] / gcd
    return x * n == x[0] * n[0]
}

func gcd(_ a: Int, _ b: Int) -> Int {
    if b == 0 {
        return a
    } else {
        return gcd(b, a % b)
    }
}
<|file_separator|>
let x = x[0] / gcd // invalid redeclaration of 'x'
let n = n[0] / gcd // invalid redeclaration of 'n'

func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/")
    let n = n.components(separatedBy: "/")
    let xNum = Int(x[0])!
    let xDen = Int(x[1])!
    let nNum = Int(n[0])!
    let nDen = Int(n[1])!
    let result = xNum * nNum
    if result % xDen == 0 {
        return true
    }
    return false
}
```swift
// Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a whole number and false
// otherwise. Both x and n, are string representation of a fraction, and have the following format,
// <numerator>/<denominator> where both numerator and denominator are positive whole numbers.
// You can assume that x, and n are valid fractions, and do not have zero as denominator.
// simplify(x: "1/5", n: "5/1") == true
// simplify(x: "1/6", n: "2/1") == false
// simplify(x: "7/10", n: "10/2") == false
func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/")
    let n = n.components(separatedBy: "/")
    let xNum = Int(x[0])!
    let xDen = Int(x[1])!
    let nNum = Int(n[0])!
    let nDen = Int(n[1])!
    let result = xNum * nNum
    if result % xDen == 0 {
        return true
    }
    return false
}
<|file_separator|>
let nDen = Int(n[1])! // initialization of immutable value 'nDen' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func simplify(x: String, n: String) -> Bool {
  let xArr = x.components(separatedBy: "/")
  let nArr = n.components(separatedBy: "/")
  let xNum = Int(xArr[0])!
  let xDen = Int(xArr[1])!
  let nNum = Int(nArr[0])!
  let nDen = Int(nArr[1])!
  let result = xNum * nNum
  if result % xDen == 0 {
    return true
  } else {
    return false
  }
}
```swift
// Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a whole number and false
// otherwise. Both x and n, are string representation of a fraction, and have the following format,
// <numerator>/<denominator> where both numerator and denominator are positive whole numbers.
// You can assume that x, and n are valid fractions, and do not have zero as denominator.
// simplify(x: "1/5", n: "5/1") == true
// simplify(x: "1/6", n: "2/1") == false
// simplify(x: "7/10", n: "10/2") == false
func simplify(x: String, n: String) -> Bool {
  let xArr = x.components(separatedBy: "/")
  let nArr = n.components(separatedBy: "/")
  let xNum = Int(xArr[0])!
  let xDen = Int(xArr[1])!
  let nNum = Int(nArr[0])!
  let nDen = Int(nArr[1])!
  let result = xNum * nNum
  if result % xDen == 0 {
    return true
  } else {
    return false
  }
}
<|file_separator|>
let nDen = Int(nArr[1])! // initialization of immutable value 'nDen' was never used; consider replacing with assignment to '_' or removing it
 // XCTAssertTrue failed

func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/")
    let n = n.components(separatedBy: "/")
    let x1 = Int(x[0])!
    let x2 = Int(x[1])!
    let n1 = Int(n[0])!
    let n2 = Int(n[1])!
    if x1 * n2 == x2 * n1 {
        return true
    }
    return false
}
```swift
// Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a whole number and false
// otherwise. Both x and n, are string representation of a fraction, and have the following format,
// <numerator>/<denominator> where both numerator and denominator are positive whole numbers.
// You can assume that x, and n are valid fractions, and do not have zero as denominator.
// simplify(x: "1/5", n: "5/1") == true
// simplify(x: "1/6", n: "2/1") == false
// simplify(x: "7/10", n: "10/2") == false
func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/")
    let n = n.components(separatedBy: "/")
    let x1 = Int(x[0])!
    let x2 = Int(x[1])!
    let n1 = Int(n[0])!
    let n2 = Int(n[1])!
    if x1 * n2 == x2 * n1 {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/")
    let n = n.components(separatedBy: "/")
    let x1 = Int(x[0])!
    let x2 = Int(x[1])!
    let n1 = Int(n[0])!
    let n2 = Int(n[1])!
    let x3 = x1 * n2
    let x4 = x2 * n1
    let x5 = x3 + x4
    let x6 = x5 / x2
    if x6 == n1 {
        return true
    }
    return false
}
```swift
// Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a whole number and false
// otherwise. Both x and n, are string representation of a fraction, and have the following format,
// <numerator>/<denominator> where both numerator and denominator are positive whole numbers.
// You can assume that x, and n are valid fractions, and do not have zero as denominator.
// simplify(x: "1/5", n: "5/1") == true
// simplify(x: "1/6", n: "2/1") == false
// simplify(x: "7/10", n: "10/2") == false
func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/")
    let n = n.components(separatedBy: "/")
    let x1 = Int(x[0])!
    let x2 = Int(x[1])!
    let n1 = Int(n[0])!
    let n2 = Int(n[1])!
    let x3 = x1 * n2
    let x4 = x2 * n1
    let x5 = x3 + x4
    let x6 = x5 / x2
    if x6 == n1 {
        return true
    }
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/")
    let n = n.components(separatedBy: "/")
    let x1 = Int(x[0])!
    let x2 = Int(x[1])!
    let n1 = Int(n[0])!
    let n2 = Int(n[1])!
    if x1 * n2 == x2 * n1 {
        return true
    } else {
        return false
    }
}
```swift
// Your task is to implement a function that will simplify the expression
// x * n. The function returns true if x * n evaluates to a whole number and false
// otherwise. Both x and n, are string representation of a fraction, and have the following format,
// <numerator>/<denominator> where both numerator and denominator are positive whole numbers.
// You can assume that x, and n are valid fractions, and do not have zero as denominator.
// simplify(x: "1/5", n: "5/1") == true
// simplify(x: "1/6", n: "2/1") == false
// simplify(x: "7/10", n: "10/2") == false
func simplify(x: String, n: String) -> Bool {
    let x = x.components(separatedBy: "/")
    let n = n.components(separatedBy: "/")
    let x1 = Int(x[0])!
    let x2 = Int(x[1])!
    let n1 = Int(n[0])!
    let n2 = Int(n[1])!
    if x1 * n2 == x2 * n1 {
        return true
    } else {
        return false
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func orderByPoints(nums: [Int]) -> [Int] {
    var sortedNums = nums
    sortedNums.sort {
        (a, b) -> Bool in
        let aSum = a.digits().reduce(0, +)
        let bSum = b.digits().reduce(0, +)
        if aSum == bSum {
            return a < b
        }
        return aSum < bSum
    }
    return sortedNums
}

func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}
```swift
// Write a function which sorts the given array of integers
// in ascending order according to the sum of their digits.
// Note: if there are several items with similar sum of their digits,
// order them based on their index in original array.
// For example:
// orderByPoints(nums: [1, 11, -1, -11, -12]) == [-1, -11, 1, -12, 11]
// orderByPoints(nums: [] as [Int]) == [] as [Int]
func orderByPoints(nums: [Int]) -> [Int] {
    var sortedNums = nums
    sortedNums.sort {
        (a, b) -> Bool in
        let aSum = a.digits().reduce(0, +)
        let bSum = b.digits().reduce(0, +)
        if aSum == bSum {
            return a < b
        }
        return aSum < bSum
    }
    return sortedNums
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all the digits of a given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(12345) == 15
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the
let aSum = a.digits().reduce(0, +) // value of type 'Int' has no member 'digits'
return num.digits().reduce(0, +) // value of type 'Int' has no member 'digits'

func orderByPoints(nums: [Int]) -> [Int] {
    var result = nums
    result.sort {
        let sum1 = $0.digits().reduce(0, +)
        let sum2 = $1.digits().reduce(0, +)
        if sum1 == sum2 {
            return $0 < $1
        }
        return sum1 < sum2
    }
    return result
}

func digits(num: Int) -> [Int] {
    var result = [Int]()
    var n = num
    while n > 0 {
        result.append(n % 10)
        n /= 10
    }
    return result
}

func countChar(str: String, ch: Character) -> Int {
    var result = 0
    for c in str {
        if c == ch {
            result += 1
        }
    }
    return result
}

func countSubstr(str: String, substr: String) -> Int {
    var result = 0
    var i = 0
    while i < str.count {
        if str.substring(with: i..<i + substr.count) == substr {
            result += 1
        }
        i += 1
    }
    return result
}
```swift
// Write a function which sorts the given array of integers
// in ascending order according to the sum of their digits.
// Note: if there are several items with similar sum of their digits,
// order them based on their index in original array.
// For example:
// orderByPoints(nums: [1, 11, -1, -11, -12]) == [-1, -11, 1, -12, 11]
// orderByPoints(nums: [] as [Int]) == [] as [Int]
func orderByPoints(nums: [Int]) -> [Int] {
    var result = nums
    result.sort {
        let sum1 = $0.digits().reduce(0, +)
        let sum2 = $1.digits().reduce(0, +)
        if sum1 == sum2 {
            return $0 < $1
        }
        return sum1 < sum2
    }
    return result
}

func digits(num: Int) -> [Int] {
    var result = [Int]()
    var n = num
    while n > 0 {
        result.append(n % 10)
        n /= 10
    }
    return result
}

// Write a function which returns the number of occurrences of the given
// character in the given string.
// For example:
// countChar("hello", "l") == 2
// countChar("hello", "z") == 0
func countChar(str: String, ch: Character) -> Int {
    var result = 0
    for c in str {
        if c == ch {
            result += 1
        }
    }
    return result
}

// Write a function which returns the number of occurrences of the given
// substring in the given string.
// For example:
// countSubstr("hello", "ll") == 2
// countSubstr("hello", "z") == 0
func countSubstr(str: String, substr: String) -> Int {
    var result = 0
    var i = 0
    while i < str.count {
        if str.substring(with: i..<i + substr.count) == substr {
            result += 1
        }
        i += 1
    }
    return result
}

// Write a function which returns the number of occurrences of the given
// substring in the given string.
// For example:
// countSubstr("hello", "ll") == 2
// countSubstr("hello", "z") == 0
func countSubstr(str: String, substr: String) -> Int {
    var result = 0
    var i = 0
    while i < str.count {
        if str.substring(with: i..<i + substr.count) == substr {
            result += 1
        }
        i += 1
    }
    return result
}

// Write a function which returns the number of occurrences of the given
// substring in the given string.
// For example:
// countSubstr("hello", "ll") == 2
// countSubstr("hello", "z") == 0
func countSubstr(str: String, substr: String) -> Int {
    var result = 0
    var i = 0
    while i < str.count {
        if str.substring(with: i..<i + substr.count) == substr {
            result += 1
        }
        i += 1
    }
    return result
}

// Write a function which returns the number of occurrences of the given
// substring in the given string.
// For example:
// countSubstr("hello", "ll") == 2
// countSubstr("hello", "z") == 0
func countSubstr(str: String, substr: String) -> Int {
    var result = 0
    var i = 0
    while i < str.count {
        if str.substring(with: i..<i + substr.count) == substr {
            result += 1
        }
        i += 1
    }
    return result
}

// Write a function which returns the number of occurrences of the given
// substring in the given string.
// For example:
// countSubstr("hello", "ll") == 2
// countSubstr("hello", "z") == 0
func countSubstr(str: String, substr: String) -> Int {
    var result = 0
    var i = 0
    while i < str.count {
        if str.substring(with: i..<i + substr.count) == substr {
            result += 1
        }
        i += 1
    }
    return result
}

// Write a function which returns the number of occurrences of the given
// substring in the given string.
// For example:
// countSubstr("hello", "ll") == 2
// countSubstr("hello", "z") == 0
func countSubstr(str: String, substr: String) -> Int {
    var
let sum1 = $0.digits().reduce(0, +) // value of type 'Int' has no member 'digits'
if str.substring(with: i..<i + substr.count) == substr { // cannot convert value of type 'Int' to expected argument type 'String.Index'
if str.substring(with: i..<i + substr.count) == substr { // cannot convert value of type 'Int' to expected argument type 'String.Index'

func orderByPoints(nums: [Int]) -> [Int] {
    var nums = nums
    nums.sort {
        let a = nums.map { $0 }.reduce(0, +)
        let b = nums.map { $0 }.reduce(0, +)
        return a < b
    }
    return nums
}
```swift
// Write a function which sorts the given array of integers
// in ascending order according to the sum of their digits.
// Note: if there are several items with similar sum of their digits,
// order them based on their index in original array.
// For example:
// orderByPoints(nums: [1, 11, -1, -11, -12]) == [-1, -11, 1, -12, 11]
// orderByPoints(nums: [] as [Int]) == [] as [Int]
func orderByPoints(nums: [Int]) -> [Int] {
    var nums = nums
    nums.sort {
        let a = nums.map { $0 }.reduce(0, +)
        let b = nums.map { $0 }.reduce(0, +)
        return a < b
    }
    return nums
}
<|file_separator|>
nums.sort { // contextual type for closure argument list expects 2 arguments, which cannot be implicitly ignored

func orderByPoints(nums: [Int]) -> [Int] {
    var nums = nums
    nums.sort { (a, b) -> Bool in
        let aSum = a.digits().reduce(0, +)
        let bSum = b.digits().reduce(0, +)
        if aSum == bSum {
            return a < b
        } else {
            return aSum < bSum
        }
    }
    return nums
}

func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

extension Int {
    func digits() -> [Int] {
        var digits = [Int]()
        var num = self
        while num > 0 {
            digits.append(num % 10)
            num /= 10
        }
        return digits
    }
}
```swift
// Write a function which sorts the given array of integers
// in ascending order according to the sum of their digits.
// Note: if there are several items with similar sum of their digits,
// order them based on their index in original array.
// For example:
// orderByPoints(nums: [1, 11, -1, -11, -12]) == [-1, -11, 1, -12, 11]
// orderByPoints(nums: [] as [Int]) == [] as [Int]
func orderByPoints(nums: [Int]) -> [Int] {
    var nums = nums
    nums.sort { (a, b) -> Bool in
        let aSum = a.digits().reduce(0, +)
        let bSum = b.digits().reduce(0, +)
        if aSum == bSum {
            return a < b
        } else {
            return aSum < bSum
        }
    }
    return nums
}

// Write a function which returns the sum of the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
extension Int {
    func digits() -> [Int] {
        var digits = [Int]()
        var num = self
        while num > 0 {
            digits.append(num % 10)
            num /= 10
        }
        return digits
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func orderByPoints(nums: [Int]) -> [Int] {
    var result = nums
    result.sort {
        let a = $0.digits.reduce(0, +)
        let b = $1.digits.reduce(0, +)
        if a == b {
            return $0 < $1
        } else {
            return a < b
        }
    }
    return result
}

func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}
```swift
// Write a function which sorts the given array of integers
// in ascending order according to the sum of their digits.
// Note: if there are several items with similar sum of their digits,
// order them based on their index in original array.
// For example:
// orderByPoints(nums: [1, 11, -1, -11, -12]) == [-1, -11, 1, -12, 11]
// orderByPoints(nums: [] as [Int]) == [] as [Int]
func orderByPoints(nums: [Int]) -> [Int] {
    var result = nums
    result.sort {
        let a = $0.digits.reduce(0, +)
        let b = $1.digits.reduce(0, +)
        if a == b {
            return $0 < $1
        } else {
            return a < b
        }
    }
    return result
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) == 45
func sumDigits(n: Int) -> Int {
    return n.digits.reduce(0, +)
}

// Write a function which returns the sum of all the digits of the given integer.
// For example:
// sumDigits(123) == 6
// sumDigits(123456789) ==
let a = $0.digits.reduce(0, +) // value of type 'Int' has no member 'digits'
return n.digits.reduce(0, +) // value of type 'Int' has no member 'digits'

func orderByPoints(nums: [Int]) -> [Int] {
    var nums = nums
    nums.sort { (a, b) -> Bool in
        let aSum = a.digits().reduce(0, +)
        let bSum = b.digits().reduce(0, +)
        if aSum == bSum {
            return a < b
        }
        return aSum < bSum
    }
    return nums
}

func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}
```swift
// Write a function which sorts the given array of integers
// in ascending order according to the sum of their digits.
// Note: if there are several items with similar sum of their digits,
// order them based on their index in original array.
// For example:
// orderByPoints(nums: [1, 11, -1, -11, -12]) == [-1, -11, 1, -12, 11]
// orderByPoints(nums: [] as [Int]) == [] as [Int]
func orderByPoints(nums: [Int]) -> [Int] {
    var nums = nums
    nums.sort { (a, b) -> Bool in
        let aSum = a.digits().reduce(0, +)
        let bSum = b.digits().reduce(0, +)
        if aSum == bSum {
            return a < b
        }
        return aSum < bSum
    }
    return nums
}

// Write a function which returns the sum of the digits of a given number.
// For example:
// sumDigits(12345) == 15
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of a given number.
// For example:
// sumDigits(12345) == 15
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of a given number.
// For example:
// sumDigits(12345) == 15
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of a given number.
// For example:
// sumDigits(12345) == 15
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of a given number.
// For example:
// sumDigits(12345) == 15
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of a given number.
// For example:
// sumDigits(12345) == 15
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of a given number.
// For example:
// sumDigits(12345) == 15
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of a given number.
// For example:
// sumDigits(12345) == 15
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of a given number.
// For example:
// sumDigits(12345) == 15
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of a given number.
// For example:
// sumDigits(12345) == 15
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of a given number.
// For example:
// sumDigits(12345) == 15
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of the digits of a given number.
// For example:
//
let aSum = a.digits().reduce(0, +) // value of type 'Int' has no member 'digits'
return num.digits().reduce(0, +) // value of type 'Int' has no member 'digits'

func orderByPoints(nums: [Int]) -> [Int] {
    return nums.sorted {
        let a = nums.reduce(0) { $0 + $1 }
        let b = nums.reduce(0) { $0 + $1 }
        return a == b ? nums.index(of: $0)! : a < b
    }
}
```swift
// Write a function which sorts the given array of integers
// in ascending order according to the sum of their digits.
// Note: if there are several items with similar sum of their digits,
// order them based on their index in original array.
// For example:
// orderByPoints(nums: [1, 11, -1, -11, -12]) == [-1, -11, 1, -12, 11]
// orderByPoints(nums: [] as [Int]) == [] as [Int]
func orderByPoints(nums: [Int]) -> [Int] {
    return nums.sorted {
        let a = nums.reduce(0) { $0 + $1 }
        let b = nums.reduce(0) { $0 + $1 }
        return a == b ? nums.index(of: $0)! : a < b
    }
}
<|file_separator|>
return nums.sorted { // contextual closure type '(Int, Int) throws -> Bool' expects 2 arguments, but 1 was used in closure body
return a == b ? nums.index(of: $0)! : a < b // result values in '? :' expression have mismatching types 'Array<Int>.Index' (aka 'Int') and 'Bool'

func orderByPoints(nums: [Int]) -> [Int] {
    return nums.sorted {
        let sum1 = nums.reduce(0) { $0 + $1 }
        let sum2 = nums.reduce(0) { $0 + $1 }
        return sum1 == sum2 ? nums.index(of: $0)! < nums.index(of: $1)! : sum1 < sum2
    }
}

func countChar(str: String, char: Character) -> Int {
    return str.reduce(0) { $0 + (String($1) == String(char) ? 1 : 0) }
}
```swift
// Write a function which sorts the given array of integers
// in ascending order according to the sum of their digits.
// Note: if there are several items with similar sum of their digits,
// order them based on their index in original array.
// For example:
// orderByPoints(nums: [1, 11, -1, -11, -12]) == [-1, -11, 1, -12, 11]
// orderByPoints(nums: [] as [Int]) == [] as [Int]
func orderByPoints(nums: [Int]) -> [Int] {
    return nums.sorted {
        let sum1 = nums.reduce(0) { $0 + $1 }
        let sum2 = nums.reduce(0) { $0 + $1 }
        return sum1 == sum2 ? nums.index(of: $0)! < nums.index(of: $1)! : sum1 < sum2
    }
}

// Write a function which returns the number of occurrences of a given
// character in a given string.
// For example:
// countChar("hello", "l") == 2
// countChar("hello", "z") == 0
func countChar(str: String, char: Character) -> Int {
    return str.reduce(0) { $0 + (String($1) == String(char) ? 1 : 0) }
}

// Write a function which returns the number of occurrences of a given
// character in a given string.
// For example:
// countChar("hello", "l") == 2
// countChar("hello", "z") == 0
func countChar(str: String, char: Character) -> Int {
    return str.reduce(0) { $0 + (String($1) == String(char) ? 1 : 0) }
}

// Write a function which returns the number of occurrences of a given
// character in a given string.
// For example:
// countChar("hello", "l") == 2
// countChar("hello", "z") == 0
func countChar(str: String, char: Character) -> Int {
    return str.reduce(0) { $0 + (String($1) == String(char) ? 1 : 0) }
}

// Write a function which returns the number of occurrences of a given
// character in a given string.
// For example:
// countChar("hello", "l") == 2
// countChar("hello", "z") == 0
func countChar(str: String, char: Character) -> Int {
    return str.reduce(0) { $0 + (String($1) == String(char) ? 1 : 0) }
}

// Write a function which returns the number of occurrences of a given
// character in a given string.
// For example:
// countChar("hello", "l") == 2
// countChar("hello", "z") == 0
func countChar(str: String, char: Character) -> Int {
    return str.reduce(0) { $0 + (String($1) == String(char) ? 1 : 0) }
}

// Write a function which returns the number of occurrences of a given
// character in a given string.
// For example:
// countChar("hello", "l") == 2
// countChar("hello", "z") == 0
func countChar(str: String, char: Character) -> Int {
    return str.reduce(0) { $0 + (String($1) == String(char) ? 1 : 0) }
}

// Write a function which returns the number of occurrences of a given
// character in a given string.
// For example:
// countChar("hello", "l") == 2
// countChar("hello", "z") == 0
func countChar(str: String, char: Character) -> Int {
    return str.reduce(0) { $0 + (String($1) == String(char) ? 1 : 0) }
}

// Write a function which returns the number of occurrences of a given
// character in a given string.
// For example:
// countChar("hello", "l") == 2
// countChar("hello", "z") == 0
func countChar(str: String, char: Character) -> Int {
    return str.reduce(0) { $0 + (String($1) == String(char) ? 1 : 0) }
}

// Write a function which returns the number of occurrences of a given
// character in a given string.
// For example:
// countChar("hello", "l") == 2
// countChar("hello", "z") == 0
func countChar(str: String, char: Character) -> Int {
    return str.reduce(0) { $0 + (String($1) == String(char) ? 1 : 0) }
}

// Write a function which returns the number of occurrences of a given
// character in a given string.
return sum1 == sum2 ? nums.index(of: $0)! < nums.index(of: $1)! : sum1 < sum2 // 'index(of:)' is deprecated: renamed to 'firstIndex(of:)'
return sum1 == sum2 ? nums.index(of: $0)! < nums.index(of: $1)! : sum1 < sum2 // 'index(of:)' is deprecated: renamed to 'firstIndex(of:)'
 // XCTAssertTrue failed

func orderByPoints(nums: [Int]) -> [Int] {
    var sorted = nums.sorted {
        (a, b) -> Bool in
        let aSum = a.digits().reduce(0, +)
        let bSum = b.digits().reduce(0, +)
        if aSum == bSum {
            return a < b
        }
        return aSum < bSum
    }
    return sorted
}

func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}
```swift
// Write a function which sorts the given array of integers
// in ascending order according to the sum of their digits.
// Note: if there are several items with similar sum of their digits,
// order them based on their index in original array.
// For example:
// orderByPoints(nums: [1, 11, -1, -11, -12]) == [-1, -11, 1, -12, 11]
// orderByPoints(nums: [] as [Int]) == [] as [Int]
func orderByPoints(nums: [Int]) -> [Int] {
    var sorted = nums.sorted {
        (a, b) -> Bool in
        let aSum = a.digits().reduce(0, +)
        let bSum = b.digits().reduce(0, +)
        if aSum == bSum {
            return a < b
        }
        return aSum < bSum
    }
    return sorted
}

// Write a function which returns the sum of all digits of the given integer.
// For example:
// sumDigits(12345) == 15
// sumDigits(1) == 1
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all digits of the given integer.
// For example:
// sumDigits(12345) == 15
// sumDigits(1) == 1
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all digits of the given integer.
// For example:
// sumDigits(12345) == 15
// sumDigits(1) == 1
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all digits of the given integer.
// For example:
// sumDigits(12345) == 15
// sumDigits(1) == 1
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all digits of the given integer.
// For example:
// sumDigits(12345) == 15
// sumDigits(1) == 1
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all digits of the given integer.
// For example:
// sumDigits(12345) == 15
// sumDigits(1) == 1
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all digits of the given integer.
// For example:
// sumDigits(12345) == 15
// sumDigits(1) == 1
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all digits of the given integer.
// For example:
// sumDigits(12345) == 15
// sumDigits(1) == 1
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all digits of the given integer.
// For example:
// sumDigits(12345) == 15
// sumDigits(1) == 1
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the sum of all digits of the given integer.
// For example:
// sumDigits(12345) == 15
// sumDigits(1) == 1
// sumDigits(123456789) == 45
func sumDigits(num: Int) -> Int {
    return num.digits().reduce(0, +)
}

// Write a function which returns the
let aSum = a.digits().reduce(0, +) // value of type 'Int' has no member 'digits'
return num.digits().reduce(0, +) // value of type 'Int' has no member 'digits'

func orderByPoints(nums: [Int]) -> [Int] {
    var nums = nums
    nums.sort { (a, b) -> Bool in
        let aSum = a.digits().reduce(0, +)
        let bSum = b.digits().reduce(0, +)
        if aSum == bSum {
            return a < b
        } else {
            return aSum < bSum
        }
    }
    return nums
}

private extension Int {
    func digits() -> [Int] {
        var digits = [Int]()
        var n = self
        while n > 0 {
            digits.append(n % 10)
            n /= 10
        }
        return digits
    }
}
```swift
// Write a function which sorts the given array of integers
// in ascending order according to the sum of their digits.
// Note: if there are several items with similar sum of their digits,
// order them based on their index in original array.
// For example:
// orderByPoints(nums: [1, 11, -1, -11, -12]) == [-1, -11, 1, -12, 11]
// orderByPoints(nums: [] as [Int]) == [] as [Int]
func orderByPoints(nums: [Int]) -> [Int] {
    var nums = nums
    nums.sort { (a, b) -> Bool in
        let aSum = a.digits().reduce(0, +)
        let bSum = b.digits().reduce(0, +)
        if aSum == bSum {
            return a < b
        } else {
            return aSum < bSum
        }
    }
    return nums
}

private extension Int {
    func digits() -> [Int] {
        var digits = [Int]()
        var n = self
        while n > 0 {
            digits.append(n % 10)
            n /= 10
        }
        return digits
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() {
            count += 1
        }
    }
    return count
}
```swift
// Write a function that takes an array of numbers as input and returns 
// the number of elements in the array that are greater than 10 and both 
// first and last digits of a number are odd (1, 3, 5, 7, 9).
// For example:
// specialFilter(nums: [15, -73, 14, -15]) == 1
// specialFilter(nums: [33, -2, -3, 45, 21, 109]) == 2
func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() {
            count += 1
        }
    }
    return count
}
<|file_separator|>
if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() { // value of type 'Int' has no member 'isOdd'
if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() { // value of type 'Int' has no member 'firstDigit'
if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() { // value of type 'Int' has no member 'lastDigit'

func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() {
            count += 1
        }
    }
    return count
}

func vowelCount(str: String) -> Int {
    let vowels = "aeiou"
    var count = 0
    for char in str {
        if vowels.contains(char) {
            count += 1
        }
    }
    return count
}

func wordCount(str: String) -> Int {
    let words = str.split(separator: " ")
    return words.count
}

func consonantCount(str: String) -> Int {
    let consonants = "bcdfghjklmnpqrstvwxyz"
    var count = 0
    for char in str {
        if consonants.contains(char) {
            count += 1
        }
    }
    return count
}

func digitCount(str: String) -> Int {
    var count = 0
    for char in str {
        if char.isDigit() {
            count += 1
        }
    }
    return count
}

func spaceCount(str: String) -> Int {
    var count = 0
    for char in str {
        if char == " " {
            count += 1
        }
    }
    return count
}

func uppercaseCount(str: String) -> Int {
    var count = 0
    for char in str {
        if char.isUppercase() {
            count += 1
        }
    }
    return count
}

func lowercaseCount(str: String) -> Int {
    var count = 0
    for char in str {
        if char.isLowercase() {
            count += 1
        }
    }
    return count
}

func specialCount(str: String) -> Int {
    let specialChars = "!@#$%^&*()_+-=[]{}|;':\",./<>?"
    var count = 0
    for char in str {
        if specialChars.contains(char) {
            count += 1
        }
    }
    return count
}
```swift
// Write a function that takes an array of numbers as input and returns 
// the number of elements in the array that are greater than 10 and both 
// first and last digits of a number are odd (1, 3, 5, 7, 9).
// For example:
// specialFilter(nums: [15, -73, 14, -15]) == 1
// specialFilter(nums: [33, -2, -3, 45, 21, 109]) == 2
func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string as input and returns the number of 
// vowels in the string.
// For example:
// vowelCount("hello") == 2
// vowelCount("world") == 3
func vowelCount(str: String) -> Int {
    let vowels = "aeiou"
    var count = 0
    for char in str {
        if vowels.contains(char) {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string as input and returns the number of 
// words in the string.
// For example:
// wordCount("hello world") == 2
// wordCount("hello world, how are you?") == 4
func wordCount(str: String) -> Int {
    let words = str.split(separator: " ")
    return words.count
}

// Write a function that takes a string as input and returns the number of 
// consonants in the string.
// For example:
// consonantCount("hello") == 3
// consonantCount("world") == 5
func consonantCount(str: String) -> Int {
    let consonants = "bcdfghjklmnpqrstvwxyz"
    var count = 0
    for char in str {
        if consonants.contains(char) {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string as input and returns the number of 
// digits in the string.
// For example:
// digitCount("hello") == 0
// digitCount("world") == 1
func digitCount(str: String) -> Int {
    var count = 0
    for char in str {
        if char.isDigit() {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string as input and returns the number of 
// spaces in the string.
// For example:
// spaceCount("hello world") == 1
// spaceCount("hello world, how are you?") == 2
func spaceCount(str: String) -> Int {
    var count = 0
    for char in str {
        if char == " " {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string as input and returns the number of 
// uppercase letters in the string.
// For example:
// uppercaseCount("hello") == 2
// uppercaseCount("WORLD") == 2
func uppercaseCount(str: String) -> Int {
    var count = 0
    for char in str {
        if char.isUppercase() {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string as input and returns the number of 
// lowercase letters in the string.
// For example:
// lowercaseCount("hello") == 2
// lowercaseCount("WORLD") == 2
func lowercaseCount(str: String) -> Int {
    var count = 0
    for char in str {
        if char.isLowercase() {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string as input and returns the number of 
// special characters in the string.
// For example:
// specialCount("hello") == 0
// specialCount("hello world, how are you?") == 3
func specialCount(str: String) -> Int {
    let specialChars = "!@#$%^&*()_+-=[]{}|;':\",./<>?"
    var count = 0
    for char in str {
        if specialChars.contains(char) {
            count += 1
        }
    }
    return count
}

// Write a function that takes a string as input and returns the number of 
// words that start with a vowel in the string.
// For example:
// vowelWordCount("hello world") == 1
// vowelWordCount("hello world, how are you?") == 2
func vowelWordCount(str: String) -> Int {
    let vowels = "aeiou"
    var count = 
if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() { // value of type 'Int' has no member 'isOdd'
if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() { // value of type 'Int' has no member 'lastDigit'
if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() { // value of type 'Int' has no member 'firstDigit'
if char.isDigit() { // value of type 'Character' has no member 'isDigit'
if char.isUppercase() { // cannot call value of non-function type 'Bool'
if char.isLowercase() { // cannot call value of non-function type 'Bool'

func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() {
            count += 1
        }
    }
    return count
}
```swift
// Write a function that takes an array of numbers as input and returns 
// the number of elements in the array that are greater than 10 and both 
// first and last digits of a number are odd (1, 3, 5, 7, 9).
// For example:
// specialFilter(nums: [15, -73, 14, -15]) == 1
// specialFilter(nums: [33, -2, -3, 45, 21, 109]) == 2
func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() {
            count += 1
        }
    }
    return count
}
<|file_separator|>
if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() { // value of type 'Int' has no member 'isOdd'
if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() { // value of type 'Int' has no member 'firstDigit'
if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() { // value of type 'Int' has no member 'lastDigit'

func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num % 2 != 0 && num % 10 % 2 != 0 && num / 10 % 2 != 0 {
            count += 1
        }
    }
    return count
}
```swift
// Write a function that takes an array of numbers as input and returns 
// the number of elements in the array that are greater than 10 and both 
// first and last digits of a number are odd (1, 3, 5, 7, 9).
// For example:
// specialFilter(nums: [15, -73, 14, -15]) == 1
// specialFilter(nums: [33, -2, -3, 45, 21, 109]) == 2
func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num % 2 != 0 && num % 10 % 2 != 0 && num / 10 % 2 != 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num % 2 == 1 && num % 10 % 2 == 1 && num / 10 % 2 == 1 {
            count += 1
        }
    }
    return count
}
```swift
// Write a function that takes an array of numbers as input and returns 
// the number of elements in the array that are greater than 10 and both 
// first and last digits of a number are odd (1, 3, 5, 7, 9).
// For example:
// specialFilter(nums: [15, -73, 14, -15]) == 1
// specialFilter(nums: [33, -2, -3, 45, 21, 109]) == 2
func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num % 2 == 1 && num % 10 % 2 == 1 && num / 10 % 2 == 1 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num % 2 == 1 && num % 10 % 2 == 1 && num / 10 % 2 == 1 {
            count += 1
        }
    }
    return count
}
```swift
// Write a function that takes an array of numbers as input and returns 
// the number of elements in the array that are greater than 10 and both 
// first and last digits of a number are odd (1, 3, 5, 7, 9).
// For example:
// specialFilter(nums: [15, -73, 14, -15]) == 1
// specialFilter(nums: [33, -2, -3, 45, 21, 109]) == 2
func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num % 2 == 1 && num % 10 % 2 == 1 && num / 10 % 2 == 1 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num % 2 != 0 && num % 10 % 2 != 0 && num / 10 % 2 != 0 {
            count += 1
        }
    }
    return count
}
```swift
// Write a function that takes an array of numbers as input and returns 
// the number of elements in the array that are greater than 10 and both 
// first and last digits of a number are odd (1, 3, 5, 7, 9).
// For example:
// specialFilter(nums: [15, -73, 14, -15]) == 1
// specialFilter(nums: [33, -2, -3, 45, 21, 109]) == 2
func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num % 2 != 0 && num % 10 % 2 != 0 && num / 10 % 2 != 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFilter(nums: [Int]) -> Int {
  var count = 0
  for num in nums {
    if num > 10 && num % 2 != 0 && num % 10 % 2 != 0 && num / 10 % 2 != 0 {
      count += 1
    }
  }
  return count
}
```swift
// Write a function that takes an array of numbers as input and returns 
// the number of elements in the array that are greater than 10 and both 
// first and last digits of a number are odd (1, 3, 5, 7, 9).
// For example:
// specialFilter(nums: [15, -73, 14, -15]) == 1
// specialFilter(nums: [33, -2, -3, 45, 21, 109]) == 2
func specialFilter(nums: [Int]) -> Int {
  var count = 0
  for num in nums {
    if num > 10 && num % 2 != 0 && num % 10 % 2 != 0 && num / 10 % 2 != 0 {
      count += 1
    }
  }
  return count
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num % 2 != 0 && num % 10 % 2 != 0 && num / 10 % 2 != 0 {
            count += 1
        }
    }
    return count
}
```swift
// Write a function that takes an array of numbers as input and returns 
// the number of elements in the array that are greater than 10 and both 
// first and last digits of a number are odd (1, 3, 5, 7, 9).
// For example:
// specialFilter(nums: [15, -73, 14, -15]) == 1
// specialFilter(nums: [33, -2, -3, 45, 21, 109]) == 2
func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num % 2 != 0 && num % 10 % 2 != 0 && num / 10 % 2 != 0 {
            count += 1
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() {
            count += 1
        }
    }
    return count
}

extension Int {
    func isOdd() -> Bool {
        return self % 2 != 0
    }
    
    func firstDigit() -> Int {
        return self / 10000 % 10
    }
    
    func lastDigit() -> Int {
        return self % 10
    }
}
```swift
// Write a function that takes an array of numbers as input and returns 
// the number of elements in the array that are greater than 10 and both 
// first and last digits of a number are odd (1, 3, 5, 7, 9).
// For example:
// specialFilter(nums: [15, -73, 14, -15]) == 1
// specialFilter(nums: [33, -2, -3, 45, 21, 109]) == 2
func specialFilter(nums: [Int]) -> Int {
    var count = 0
    for num in nums {
        if num > 10 && num.isOdd() && num.firstDigit().isOdd() && num.lastDigit().isOdd() {
            count += 1
        }
    }
    return count
}

extension Int {
    func isOdd() -> Bool {
        return self % 2 != 0
    }
    
    func firstDigit() -> Int {
        return self / 10000 % 10
    }
    
    func lastDigit() -> Int {
        return self % 10
    }
}
<|file_separator|>
 // XCTAssertTrue failed

func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
```swift
// You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k, 
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// Explanation: 
// a = [1, 3, 7, 13, 21]
// The only valid triple is (1, 7, 13).
// getMaxTriples(n: 5) == 1
func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
```swift
// You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k, 
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// Explanation: 
// a = [1, 3, 7, 13, 21]
// The only valid triple is (1, 7, 13).
// getMaxTriples(n: 5) == 1
func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
```swift
// You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k, 
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// Explanation: 
// a = [1, 3, 7, 13, 21]
// The only valid triple is (1, 7, 13).
// getMaxTriples(n: 5) == 1
func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
```swift
// You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k, 
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// Explanation: 
// a = [1, 3, 7, 13, 21]
// The only valid triple is (1, 7, 13).
// getMaxTriples(n: 5) == 1
func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
```swift
// You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k, 
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// Explanation: 
// a = [1, 3, 7, 13, 21]
// The only valid triple is (1, 7, 13).
// getMaxTriples(n: 5) == 1
func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func getMaxTriples(n: Int) -> Int {
    var a = Array(repeating: 0, count: n)
    for i in 0..<n {
        a[i] = (i+1)*(i+1) - i
    }
    var count = 0
    for i in 0..<n {
        for j in i+1..<n {
            for k in j+1..<n {
                if a[i] + a[j] + a[k] % 3 == 0 {
                    count += 1
                }
            }
        }
    }
    return count
}
```swift
// You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k, 
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// Explanation: 
// a = [1, 3, 7, 13, 21]
// The only valid triple is (1, 7, 13).
// getMaxTriples(n: 5) == 1
func getMaxTriples(n: Int) -> Int {
    var a = Array(repeating: 0, count: n)
    for i in 0..<n {
        a[i] = (i+1)*(i+1) - i
    }
    var count = 0
    for i in 0..<n {
        for j in i+1..<n {
            for k in j+1..<n {
                if a[i] + a[j] + a[k] % 3 == 0 {
                    count += 1
                }
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func getMaxTriples(n: Int) -> Int {
    var result = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k {
                    result += 1
                }
            }
        }
    }
    return result
}
```swift
// You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k, 
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// Explanation: 
// a = [1, 3, 7, 13, 21]
// The only valid triple is (1, 7, 13).
// getMaxTriples(n: 5) == 1
func getMaxTriples(n: Int) -> Int {
    var result = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k {
                    result += 1
                }
            }
        }
    }
    return result
}

// You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k, 
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// Explanation: 
// a = [1, 3, 7, 13, 21]
// The only valid triple is (1, 7, 13).
// getMaxTriples(n: 5) == 1
func getMaxTriples(n: Int) -> Int {
    var result = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k {
                    result += 1
                }
            }
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
```swift
// You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k, 
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// Explanation: 
// a = [1, 3, 7, 13, 21]
// The only valid triple is (1, 7, 13).
// getMaxTriples(n: 5) == 1
func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
```swift
// You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k, 
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// Explanation: 
// a = [1, 3, 7, 13, 21]
// The only valid triple is (1, 7, 13).
// getMaxTriples(n: 5) == 1
func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
```swift
// You are given a positive integer n. You have to create an integer array a of length n.
// For each i (1 ≤ i ≤ n), the value of a[i] = i * i - i + 1.
// Return the number of triples (a[i], a[j], a[k]) of a where i < j < k, 
// and a[i] + a[j] + a[k] is a multiple of 3.
// Example :
// Explanation: 
// a = [1, 3, 7, 13, 21]
// The only valid triple is (1, 7, 13).
// getMaxTriples(n: 5) == 1
func getMaxTriples(n: Int) -> Int {
    var count = 0
    for i in 1...n {
        for j in 1...n {
            for k in 1...n {
                if i * i + j * j == k * k && i < j && j < k {
                    count += 1
                }
            }
        }
    }
    return count
}
<|file_separator|>
 // XCTAssertTrue failed

func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for i in lst {
        if i.count % 2 == 1 {
            result.append(i)
        }
    }
    result.sort()
    return result
}
```swift
// Write a function that accepts an array of strings as a parameter,
// deletes the strings that have odd lengths from it,
// and returns the resulted array with a sorted order,
// The array is always an array of strings and never an array of numbers,
// and it may contain duplicates.
// The order of the array should be ascending by length of each word, and you
// should return the array sorted by that rule.
// If two words have the same length, sort the array alphabetically.
// The function should return an array of strings in sorted order.
// You may assume that all words will have the same length.
// For example:
// sortedListSum(lst: ["aa", "a", "aaa"]) == ["aa"]
// sortedListSum(lst: ["ab", "a", "aaa", "cd"]) == ["ab", "cd"]
func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for i in lst {
        if i.count % 2 == 1 {
            result.append(i)
        }
    }
    result.sort()
    return result
}
<|file_separator|>```
 // XCTAssertTrue failed

func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for str in lst {
        if str.count % 2 == 0 {
            result.append(str)
        }
    }
    result.sort { $0.count < $1.count }
    return result
}
```swift
// Write a function that accepts an array of strings as a parameter,
// deletes the strings that have odd lengths from it,
// and returns the resulted array with a sorted order,
// The array is always an array of strings and never an array of numbers,
// and it may contain duplicates.
// The order of the array should be ascending by length of each word, and you
// should return the array sorted by that rule.
// If two words have the same length, sort the array alphabetically.
// The function should return an array of strings in sorted order.
// You may assume that all words will have the same length.
// For example:
// sortedListSum(lst: ["aa", "a", "aaa"]) == ["aa"]
// sortedListSum(lst: ["ab", "a", "aaa", "cd"]) == ["ab", "cd"]
func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for str in lst {
        if str.count % 2 == 0 {
            result.append(str)
        }
    }
    result.sort { $0.count < $1.count }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func sortedListSum(lst: [String]) -> [String] {
    var result = lst
    result.sort {
        if $0.count == $1.count {
            return $0 < $1
        } else {
            return $0.count < $1.count
        }
    }
    return result
}
```swift
// Write a function that accepts an array of strings as a parameter,
// deletes the strings that have odd lengths from it,
// and returns the resulted array with a sorted order,
// The array is always an array of strings and never an array of numbers,
// and it may contain duplicates.
// The order of the array should be ascending by length of each word, and you
// should return the array sorted by that rule.
// If two words have the same length, sort the array alphabetically.
// The function should return an array of strings in sorted order.
// You may assume that all words will have the same length.
// For example:
// sortedListSum(lst: ["aa", "a", "aaa"]) == ["aa"]
// sortedListSum(lst: ["ab", "a", "aaa", "cd"]) == ["ab", "cd"]
func sortedListSum(lst: [String]) -> [String] {
    var result = lst
    result.sort {
        if $0.count == $1.count {
            return $0 < $1
        } else {
            return $0.count < $1.count
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func sortedListSum(lst: [String]) -> [String] {
  var result = [String]()
  for str in lst {
    if str.count % 2 == 0 {
      result.append(str)
    }
  }
  result.sort {
    $0.count < $1.count
  }
  return result
}
```swift
// Write a function that accepts an array of strings as a parameter,
// deletes the strings that have odd lengths from it,
// and returns the resulted array with a sorted order,
// The array is always an array of strings and never an array of numbers,
// and it may contain duplicates.
// The order of the array should be ascending by length of each word, and you
// should return the array sorted by that rule.
// If two words have the same length, sort the array alphabetically.
// The function should return an array of strings in sorted order.
// You may assume that all words will have the same length.
// For example:
// sortedListSum(lst: ["aa", "a", "aaa"]) == ["aa"]
// sortedListSum(lst: ["ab", "a", "aaa", "cd"]) == ["ab", "cd"]
func sortedListSum(lst: [String]) -> [String] {
  var result = [String]()
  for str in lst {
    if str.count % 2 == 0 {
      result.append(str)
    }
  }
  result.sort {
    $0.count < $1.count
  }
  return result
}
<|file_separator|>
 // XCTAssertTrue failed

func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for word in lst {
        if word.count % 2 == 0 {
            result.append(word)
        }
    }
    result.sort { $0.count < $1.count }
    return result
}
```swift
// Write a function that accepts an array of strings as a parameter,
// deletes the strings that have odd lengths from it,
// and returns the resulted array with a sorted order,
// The array is always an array of strings and never an array of numbers,
// and it may contain duplicates.
// The order of the array should be ascending by length of each word, and you
// should return the array sorted by that rule.
// If two words have the same length, sort the array alphabetically.
// The function should return an array of strings in sorted order.
// You may assume that all words will have the same length.
// For example:
// sortedListSum(lst: ["aa", "a", "aaa"]) == ["aa"]
// sortedListSum(lst: ["ab", "a", "aaa", "cd"]) == ["ab", "cd"]
func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for word in lst {
        if word.count % 2 == 0 {
            result.append(word)
        }
    }
    result.sort { $0.count < $1.count }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for str in lst {
        if str.count % 2 == 0 {
            result.append(str)
        }
    }
    result.sort(by: { $0.count < $1.count })
    return result
}
```swift
// Write a function that accepts an array of strings as a parameter,
// deletes the strings that have odd lengths from it,
// and returns the resulted array with a sorted order,
// The array is always an array of strings and never an array of numbers,
// and it may contain duplicates.
// The order of the array should be ascending by length of each word, and you
// should return the array sorted by that rule.
// If two words have the same length, sort the array alphabetically.
// The function should return an array of strings in sorted order.
// You may assume that all words will have the same length.
// For example:
// sortedListSum(lst: ["aa", "a", "aaa"]) == ["aa"]
// sortedListSum(lst: ["ab", "a", "aaa", "cd"]) == ["ab", "cd"]
func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for str in lst {
        if str.count % 2 == 0 {
            result.append(str)
        }
    }
    result.sort(by: { $0.count < $1.count })
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for i in lst {
        if i.count % 2 == 0 {
            result.append(i)
        }
    }
    result.sort { $0.count < $1.count }
    return result
}
```swift
// Write a function that accepts an array of strings as a parameter,
// deletes the strings that have odd lengths from it,
// and returns the resulted array with a sorted order,
// The array is always an array of strings and never an array of numbers,
// and it may contain duplicates.
// The order of the array should be ascending by length of each word, and you
// should return the array sorted by that rule.
// If two words have the same length, sort the array alphabetically.
// The function should return an array of strings in sorted order.
// You may assume that all words will have the same length.
// For example:
// sortedListSum(lst: ["aa", "a", "aaa"]) == ["aa"]
// sortedListSum(lst: ["ab", "a", "aaa", "cd"]) == ["ab", "cd"]
func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for i in lst {
        if i.count % 2 == 0 {
            result.append(i)
        }
    }
    result.sort { $0.count < $1.count }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func sortedListSum(lst: [String]) -> [String] {
    let sorted = lst.sorted { $0.count < $1.count }
    return sorted.filter { $0.count % 2 == 0 }
}
```swift
// Write a function that accepts an array of strings as a parameter,
// deletes the strings that have odd lengths from it,
// and returns the resulted array with a sorted order,
// The array is always an array of strings and never an array of numbers,
// and it may contain duplicates.
// The order of the array should be ascending by length of each word, and you
// should return the array sorted by that rule.
// If two words have the same length, sort the array alphabetically.
// The function should return an array of strings in sorted order.
// You may assume that all words will have the same length.
// For example:
// sortedListSum(lst: ["aa", "a", "aaa"]) == ["aa"]
// sortedListSum(lst: ["ab", "a", "aaa", "cd"]) == ["ab", "cd"]
func sortedListSum(lst: [String]) -> [String] {
    let sorted = lst.sorted { $0.count < $1.count }
    return sorted.filter { $0.count % 2 == 0 }
}
<|file_separator|>
 // XCTAssertTrue failed

func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for i in lst {
        if i.count % 2 == 0 {
            result.append(i)
        }
    }
    result.sort()
    return result
}
```swift
// Write a function that accepts an array of strings as a parameter,
// deletes the strings that have odd lengths from it,
// and returns the resulted array with a sorted order,
// The array is always an array of strings and never an array of numbers,
// and it may contain duplicates.
// The order of the array should be ascending by length of each word, and you
// should return the array sorted by that rule.
// If two words have the same length, sort the array alphabetically.
// The function should return an array of strings in sorted order.
// You may assume that all words will have the same length.
// For example:
// sortedListSum(lst: ["aa", "a", "aaa"]) == ["aa"]
// sortedListSum(lst: ["ab", "a", "aaa", "cd"]) == ["ab", "cd"]
func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for i in lst {
        if i.count % 2 == 0 {
            result.append(i)
        }
    }
    result.sort()
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for i in lst {
        if i.count % 2 == 0 {
            result.append(i)
        }
    }
    result.sort { $0.count < $1.count }
    return result
}
```swift
// Write a function that accepts an array of strings as a parameter,
// deletes the strings that have odd lengths from it,
// and returns the resulted array with a sorted order,
// The array is always an array of strings and never an array of numbers,
// and it may contain duplicates.
// The order of the array should be ascending by length of each word, and you
// should return the array sorted by that rule.
// If two words have the same length, sort the array alphabetically.
// The function should return an array of strings in sorted order.
// You may assume that all words will have the same length.
// For example:
// sortedListSum(lst: ["aa", "a", "aaa"]) == ["aa"]
// sortedListSum(lst: ["ab", "a", "aaa", "cd"]) == ["ab", "cd"]
func sortedListSum(lst: [String]) -> [String] {
    var result = [String]()
    for i in lst {
        if i.count % 2 == 0 {
            result.append(i)
        }
    }
    result.sort { $0.count < $1.count }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func xOrY(n: Int, x: Int, y: Int) -> Int {
    var result = 0
    if isPrime(n: n) {
        result = x
    } else {
        result = y
    }
    return result
}

func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    for i in 2...n-1 {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// A simple program which should return the value of x if n is 
// a prime number and should return the value of y otherwise.
// Examples:
// xOrY(n: 7, x: 34, y: 12) == 34
// xOrY(n: 15, x: 8, y: 5) == 5
func xOrY(n: Int, x: Int, y: Int) -> Int {
    var result = 0
    if isPrime(n: n) {
        result = x
    } else {
        result = y
    }
    return result
}

func isPrime(n: Int) -> Bool {
    if n == 1 {
        return false
    }
    for i in 2...n-1 {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func xOrY(n: Int, x: Int, y: Int) -> Int {
    if n == 1 {
        return x
    }
    if n == 2 {
        return y
    }
    if n % 2 == 0 {
        return x
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return x
        }
        i += 2
    }
    return y
}
```swift
// A simple program which should return the value of x if n is 
// a prime number and should return the value of y otherwise.
// Examples:
// xOrY(n: 7, x: 34, y: 12) == 34
// xOrY(n: 15, x: 8, y: 5) == 5
func xOrY(n: Int, x: Int, y: Int) -> Int {
    if n == 1 {
        return x
    }
    if n == 2 {
        return y
    }
    if n % 2 == 0 {
        return x
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return x
        }
        i += 2
    }
    return y
}
<|file_separator|>
 // XCTAssertTrue failed

func xOrY(n: Int, x: Int, y: Int) -> Int {
    if n == 1 {
        return x
    }
    if n == 2 {
        return y
    }
    if n % 2 == 0 {
        return x
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return x
        }
        i += 2
    }
    return y
}
```swift
// A simple program which should return the value of x if n is 
// a prime number and should return the value of y otherwise.
// Examples:
// xOrY(n: 7, x: 34, y: 12) == 34
// xOrY(n: 15, x: 8, y: 5) == 5
func xOrY(n: Int, x: Int, y: Int) -> Int {
    if n == 1 {
        return x
    }
    if n == 2 {
        return y
    }
    if n % 2 == 0 {
        return x
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return x
        }
        i += 2
    }
    return y
}
<|file_separator|>
 // XCTAssertTrue failed

func xOrY(n: Int, x: Int, y: Int) -> Int {
    if isPrime(n: n) {
        return x
    } else {
        return y
    }
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(n))) {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// A simple program which should return the value of x if n is 
// a prime number and should return the value of y otherwise.
// Examples:
// xOrY(n: 7, x: 34, y: 12) == 34
// xOrY(n: 15, x: 8, y: 5) == 5
func xOrY(n: Int, x: Int, y: Int) -> Int {
    if isPrime(n: n) {
        return x
    } else {
        return y
    }
}

func isPrime(n: Int) -> Bool {
    if n == 2 {
        return true
    }
    if n % 2 == 0 {
        return false
    }
    for i in 3...Int(sqrt(Double(n))) {
        if n % i == 0 {
            return false
        }
    }
    return true
}<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func xOrY(n: Int, x: Int, y: Int) -> Int {
    var result = 0
    if n == 1 {
        result = x
    } else if n == 2 {
        result = y
    } else {
        var i = 2
        while i < n {
            if n % i == 0 {
                result = y
                break
            }
            i += 1
        }
        if result == 0 {
            result = x
        }
    }
    return result
}
```swift
// A simple program which should return the value of x if n is 
// a prime number and should return the value of y otherwise.
// Examples:
// xOrY(n: 7, x: 34, y: 12) == 34
// xOrY(n: 15, x: 8, y: 5) == 5
func xOrY(n: Int, x: Int, y: Int) -> Int {
    var result = 0
    if n == 1 {
        result = x
    } else if n == 2 {
        result = y
    } else {
        var i = 2
        while i < n {
            if n % i == 0 {
                result = y
                break
            }
            i += 1
        }
        if result == 0 {
            result = x
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func xOrY(n: Int, x: Int, y: Int) -> Int {
    if n == 1 {
        return x
    } else if n == 2 {
        return y
    } else if n % 2 == 0 {
        return x
    } else {
        return y
    }
}
```swift
// A simple program which should return the value of x if n is 
// a prime number and should return the value of y otherwise.
// Examples:
// xOrY(n: 7, x: 34, y: 12) == 34
// xOrY(n: 15, x: 8, y: 5) == 5
func xOrY(n: Int, x: Int, y: Int) -> Int {
    if n == 1 {
        return x
    } else if n == 2 {
        return y
    } else if n % 2 == 0 {
        return x
    } else {
        return y
    }
}
<|file_separator|>
 // XCTAssertTrue failed

```swift
// A simple program which should return the value of x if n is 
// a prime number and should return the value of y otherwise.
// Examples:
// xOrY(n: 7, x: 34, y: 12) == 34
// xOrY(n: 15, x: 8, y: 5) == 5
func xOrY(n: Int, x: Int, y: Int) -> Int {
    if n == 1 {
        return x
    } else if n == 2 {
        return y
    } else if n == 3 {
        return x
    } else if n == 4 {
        return y
    } else if n == 5 {
        return x
    } else if n == 6 {
        return y
    } else if n == 7 {
        return x
    } else if n == 8 {
        return y
    } else if n == 9 {
        return x
    } else if n == 10 {
        return y
    } else if n == 11 {
        return x
    } else if n == 12 {
        return y
    } else if n == 13 {
        return x
    } else if n == 14 {
        return y
    } else if n == 15 {
        return x
    } else if n == 16 {
        return y
    } else if n == 17 {
        return x
    } else if n == 18 {
        return y
    } else if n == 19 {
        return x
    } else if n == 20 {
        return y
    } else if n == 21 {
        return x
    } else if n == 22 {
        return y
    } else if n == 23 {
        return x
    } else if n == 24 {
        return y
    } else if n == 25 {
        return x
    } else if n == 26 {
        return y
    } else if n == 27 {
        return x
    } else if n == 28 {
        return y
    } else if n == 29 {
        return x
    } else if n == 30 {
        return y
    } else if n == 31 {
        return x
    } else if n == 32 {
        return y
    } else if n == 33 {
        return x
    } else if n == 34 {
        return y
    } else if n == 35 {
        return x
    } else if n == 36 {
        return y
    } else if n == 37 {
        return x
    } else if n == 38 {
        return y
    } else if n == 39 {
        return x
    } else if n == 40 {
        return y
    } else if n == 41 {
        return x
    } else if n == 42 {
        return y
    } else if n == 43 {
        return x
    } else if n == 44 {
        return y
    } else if n == 45 {
        return x
    } else if n == 46 {
        return y
    } else if n == 47 {
        return x
    } else if n == 48 {
        return y
    } else if n == 49 {
        return x
    } else if n == 50 {
        return y
    } else if n == 51 {
        return x
    } else if n == 52 {
        return y
    } else if n == 53 {
        return x
    } else if n == 54 {
        return y
    } else if n == 55 {
        return x
    } else if n == 56 {
        return y
    } else if n == 57 {
        return x
    } else if n == 58 {
        return y
    } else if n == 59 {
        return x
    } else if n == 60 {
        return y
    } else if n == 61 {
        return x
    } else if n == 62 {
        return y
    } else if n == 63 {
        return x
    } else if n == 64 {
        return y
    } else if n == 65 {
        return x
    } else if n == 66 {
        return y
    } else if n == 67 {
        return x
    } else if n == 68 {
        return y
    } else if n == 69 {
        return x
XCTAssertTrue(xOrY(n: 7, x: 34, y: 12) == 34) // cannot find 'xOrY' in scope
XCTAssertTrue(xOrY(n: 15, x: 8, y: 5) == 5) // cannot find 'xOrY' in scope
XCTAssertTrue(xOrY(n: 3, x: 33, y: 5212) == 33) // cannot find 'xOrY' in scope
XCTAssertTrue(xOrY(n: 1259, x: 3, y: 52) == 3) // cannot find 'xOrY' in scope
XCTAssertTrue(xOrY(n: 7919, x: -1, y: 12) == -1) // cannot find 'xOrY' in scope
XCTAssertTrue(xOrY(n: 3609, x: 1245, y: 583) == 583) // cannot find 'xOrY' in scope
XCTAssertTrue(xOrY(n: 91, x: 56, y: 129) == 129) // cannot find 'xOrY' in scope
XCTAssertTrue(xOrY(n: 6, x: 34, y: 1234) == 1234) // cannot find 'xOrY' in scope
XCTAssertTrue(xOrY(n: 1, x: 2, y: 0) == 0) // cannot find 'xOrY' in scope
XCTAssertTrue(xOrY(n: 2, x: 2, y: 0) == 2) // cannot find 'xOrY' in scope

func xOrY(n: Int, x: Int, y: Int) -> Int {
    if n == 1 {
        return x
    }
    if n == 2 {
        return y
    }
    if n % 2 == 0 {
        return x
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return x
        }
        i += 2
    }
    return y
}
```swift
// A simple program which should return the value of x if n is 
// a prime number and should return the value of y otherwise.
// Examples:
// xOrY(n: 7, x: 34, y: 12) == 34
// xOrY(n: 15, x: 8, y: 5) == 5
func xOrY(n: Int, x: Int, y: Int) -> Int {
    if n == 1 {
        return x
    }
    if n == 2 {
        return y
    }
    if n % 2 == 0 {
        return x
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return x
        }
        i += 2
    }
    return y
}
<|file_separator|>
 // XCTAssertTrue failed

func xOrY(n: Int, x: Int, y: Int) -> Int {
    if isPrime(n: n) {
        return x
    } else {
        return y
    }
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2...n-1 {
        if n % i == 0 {
            return false
        }
    }
    return true
}
```swift
// A simple program which should return the value of x if n is 
// a prime number and should return the value of y otherwise.
// Examples:
// xOrY(n: 7, x: 34, y: 12) == 34
// xOrY(n: 15, x: 8, y: 5) == 5
func xOrY(n: Int, x: Int, y: Int) -> Int {
    if isPrime(n: n) {
        return x
    } else {
        return y
    }
}

func isPrime(n: Int) -> Bool {
    if n <= 1 {
        return false
    }
    for i in 2...n-1 {
        if n % i == 0 {
            return false
        }
    }
    return true
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func xOrY(n: Int, x: Int, y: Int) -> Int {
    if n == 1 {
        return x
    }
    if n == 2 {
        return y
    }
    if n % 2 == 0 {
        return x
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return x
        }
        i += 2
    }
    return y
}
```swift
// A simple program which should return the value of x if n is 
// a prime number and should return the value of y otherwise.
// Examples:
// xOrY(n: 7, x: 34, y: 12) == 34
// xOrY(n: 15, x: 8, y: 5) == 5
func xOrY(n: Int, x: Int, y: Int) -> Int {
    if n == 1 {
        return x
    }
    if n == 2 {
        return y
    }
    if n % 2 == 0 {
        return x
    }
    var i = 3
    while i * i <= n {
        if n % i == 0 {
            return x
        }
        i += 2
    }
    return y
}
<|file_separator|>
 // XCTAssertTrue failed

func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        if i > 0 && i % 2 != 0 {
            sum += i * i
        }
    }
    return sum
}
```swift
// Given an array of numbers, return the sum of squares of the numbers
// in the array that are odd. Ignore numbers that are negative or not integers.
// If the input array is empty, return 0.
// doubleTheDifference(lst: [1, 3, 2, 0]) == 10
// doubleTheDifference(lst: [-1, -2, 0]) == 0
// doubleTheDifference(lst: [9, -2]) == 81
// doubleTheDifference(lst: [0]) == 0
func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        if i > 0 && i % 2 != 0 {
            sum += i * i
        }
    }
    return sum
}
<|file_separator|>```
if i > 0 && i % 2 != 0 { // '%' is unavailable: For floating point numbers use truncatingRemainder instead
sum += i * i // cannot convert value of type 'Double' to expected argument type 'Int'

func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        if i > 0 && i % 2 != 0 {
            sum += i * i
        }
    }
    return sum
}
```swift
// Given an array of numbers, return the sum of squares of the numbers
// in the array that are odd. Ignore numbers that are negative or not integers.
// If the input array is empty, return 0.
// doubleTheDifference(lst: [1, 3, 2, 0]) == 10
// doubleTheDifference(lst: [-1, -2, 0]) == 0
// doubleTheDifference(lst: [9, -2]) == 81
// doubleTheDifference(lst: [0]) == 0
func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        if i > 0 && i % 2 != 0 {
            sum += i * i
        }
    }
    return sum
}
<|file_separator|>
if i > 0 && i % 2 != 0 { // '%' is unavailable: For floating point numbers use truncatingRemainder instead
sum += i * i // cannot convert value of type 'Double' to expected argument type 'Int'

func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        if i > 0 && i.truncatingRemainder(dividingBy: 2) == 0 {
            sum += i * i
        }
    }
    return sum
}
```swift
// Given an array of numbers, return the sum of squares of the numbers
// in the array that are odd. Ignore numbers that are negative or not integers.
// If the input array is empty, return 0.
// doubleTheDifference(lst: [1, 3, 2, 0]) == 10
// doubleTheDifference(lst: [-1, -2, 0]) == 0
// doubleTheDifference(lst: [9, -2]) == 81
// doubleTheDifference(lst: [0]) == 0
func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        if i > 0 && i.truncatingRemainder(dividingBy: 2) == 0 {
            sum += i * i
        }
    }
    return sum
}
<|file_separator|>
sum += i * i // cannot convert value of type 'Double' to expected argument type 'Int'

func doubleTheDifference(lst: [Double]) -> Int {
  var sum = 0
  for i in 0..<lst.count {
    if lst[i] > 0 && lst[i] % 2 != 0 {
      sum += Int(pow(lst[i], 2))
    }
  }
  return sum
}
```swift
// Given an array of numbers, return the sum of squares of the numbers
// in the array that are odd. Ignore numbers that are negative or not integers.
// If the input array is empty, return 0.
// doubleTheDifference(lst: [1, 3, 2, 0]) == 10
// doubleTheDifference(lst: [-1, -2, 0]) == 0
// doubleTheDifference(lst: [9, -2]) == 81
// doubleTheDifference(lst: [0]) == 0
func doubleTheDifference(lst: [Double]) -> Int {
  var sum = 0
  for i in 0..<lst.count {
    if lst[i] > 0 && lst[i] % 2 != 0 {
      sum += Int(pow(lst[i], 2))
    }
  }
  return sum
}
<|file_separator|>
if lst[i] > 0 && lst[i] % 2 != 0 { // '%' is unavailable: For floating point numbers use truncatingRemainder instead

func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        if i > 0 && i % 2 != 0 {
            sum += i * i
        }
    }
    return sum
}
```swift
// Given an array of numbers, return the sum of squares of the numbers
// in the array that are odd. Ignore numbers that are negative or not integers.
// If the input array is empty, return 0.
// doubleTheDifference(lst: [1, 3, 2, 0]) == 10
// doubleTheDifference(lst: [-1, -2, 0]) == 0
// doubleTheDifference(lst: [9, -2]) == 81
// doubleTheDifference(lst: [0]) == 0
func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        if i > 0 && i % 2 != 0 {
            sum += i * i
        }
    }
    return sum
}
<|file_separator|>
if i > 0 && i % 2 != 0 { // '%' is unavailable: For floating point numbers use truncatingRemainder instead
sum += i * i // cannot convert value of type 'Double' to expected argument type 'Int'

func doubleTheDifference(lst: [Double]) -> Int {
  var sum = 0
  for i in lst {
    if i > 0 && i % 2 == 1 {
      sum += i * i
    }
  }
  return sum
}
```swift
// Given an array of numbers, return the sum of squares of the numbers
// in the array that are odd. Ignore numbers that are negative or not integers.
// If the input array is empty, return 0.
// doubleTheDifference(lst: [1, 3, 2, 0]) == 10
// doubleTheDifference(lst: [-1, -2, 0]) == 0
// doubleTheDifference(lst: [9, -2]) == 81
// doubleTheDifference(lst: [0]) == 0
func doubleTheDifference(lst: [Double]) -> Int {
  var sum = 0
  for i in lst {
    if i > 0 && i % 2 == 1 {
      sum += i * i
    }
  }
  return sum
}
<|file_separator|>
if i > 0 && i % 2 == 1 { // '%' is unavailable: For floating point numbers use truncatingRemainder instead
sum += i * i // cannot convert value of type 'Double' to expected argument type 'Int'

func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for num in lst {
        if num > 0 && num % 2 == 1 {
            sum += num * num
        }
    }
    return sum
}
```swift
// Given an array of numbers, return the sum of squares of the numbers
// in the array that are odd. Ignore numbers that are negative or not integers.
// If the input array is empty, return 0.
// doubleTheDifference(lst: [1, 3, 2, 0]) == 10
// doubleTheDifference(lst: [-1, -2, 0]) == 0
// doubleTheDifference(lst: [9, -2]) == 81
// doubleTheDifference(lst: [0]) == 0
func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for num in lst {
        if num > 0 && num % 2 == 1 {
            sum += num * num
        }
    }
    return sum
}
<|file_separator|>
if num > 0 && num % 2 == 1 { // '%' is unavailable: For floating point numbers use truncatingRemainder instead
sum += num * num // cannot convert value of type 'Double' to expected argument type 'Int'

func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if lst[i] > 0 && lst[i] % 2 == 1 {
            sum += Int(pow(lst[i], 2))
        }
    }
    return sum
}
```swift
// Given an array of numbers, return the sum of squares of the numbers
// in the array that are odd. Ignore numbers that are negative or not integers.
// If the input array is empty, return 0.
// doubleTheDifference(lst: [1, 3, 2, 0]) == 10
// doubleTheDifference(lst: [-1, -2, 0]) == 0
// doubleTheDifference(lst: [9, -2]) == 81
// doubleTheDifference(lst: [0]) == 0
func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in 0..<lst.count {
        if lst[i] > 0 && lst[i] % 2 == 1 {
            sum += Int(pow(lst[i], 2))
        }
    }
    return sum
}
<|file_separator|>
if lst[i] > 0 && lst[i] % 2 == 1 { // '%' is unavailable: For floating point numbers use truncatingRemainder instead

func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        if i > 0 && i % 2 == 1 {
            sum += i * i
        }
    }
    return sum
}
```swift
// Given an array of numbers, return the sum of squares of the numbers
// in the array that are odd. Ignore numbers that are negative or not integers.
// If the input array is empty, return 0.
// doubleTheDifference(lst: [1, 3, 2, 0]) == 10
// doubleTheDifference(lst: [-1, -2, 0]) == 0
// doubleTheDifference(lst: [9, -2]) == 81
// doubleTheDifference(lst: [0]) == 0
func doubleTheDifference(lst: [Double]) -> Int {
    var sum = 0
    for i in lst {
        if i > 0 && i % 2 == 1 {
            sum += i * i
        }
    }
    return sum
}
<|file_separator|>
if i > 0 && i % 2 == 1 { // '%' is unavailable: For floating point numbers use truncatingRemainder instead
sum += i * i // cannot convert value of type 'Double' to expected argument type 'Int'

func doubleTheDifference(lst: [Double]) -> Int {
  var sum = 0
  for i in lst {
    if i > 0 && i % 2 == 1 {
      sum += i * i
    }
  }
  return sum
}
```swift
// Given an array of numbers, return the sum of squares of the numbers
// in the array that are odd. Ignore numbers that are negative or not integers.
// If the input array is empty, return 0.
// doubleTheDifference(lst: [1, 3, 2, 0]) == 10
// doubleTheDifference(lst: [-1, -2, 0]) == 0
// doubleTheDifference(lst: [9, -2]) == 81
// doubleTheDifference(lst: [0]) == 0
func doubleTheDifference(lst: [Double]) -> Int {
  var sum = 0
  for i in lst {
    if i > 0 && i % 2 == 1 {
      sum += i * i
    }
  }
  return sum
}
<|file_separator|>
if i > 0 && i % 2 == 1 { // '%' is unavailable: For floating point numbers use truncatingRemainder instead
sum += i * i // cannot convert value of type 'Double' to expected argument type 'Int'

func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
```swift
// I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you have at that moment are
// definitely worth noting down and comparing.
// Your task is to determine if a person correctly guessed the results of a number of matches.
// You are given two arrays of scores and guesses of equal length, where each index shows a match. 
// Return an array of the same length denoting how far off each guess was. If they have guessed correctly,
// the value is 0, and if not, the value is the absolute difference between the guess and the score.
// example:
// compare(game: [1, 2, 3, 4, 5, 1], guess: [1, 2, 3, 4, 2, -2]) == [0, 0, 0, 0, 3, 3]
// compare(game: [0, 5, 0, 0, 0, 4], guess: [4, 1, 1, 0, 0, -2]) == [4, 4, 1, 0, 0, 6]
func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}<|file_separator|>

func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
```swift
// I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you have at that moment are
// definitely worth noting down and comparing.
// Your task is to determine if a person correctly guessed the results of a number of matches.
// You are given two arrays of scores and guesses of equal length, where each index shows a match. 
// Return an array of the same length denoting how far off each guess was. If they have guessed correctly,
// the value is 0, and if not, the value is the absolute difference between the guess and the score.
// example:
// compare(game: [1, 2, 3, 4, 5, 1], guess: [1, 2, 3, 4, 2, -2]) == [0, 0, 0, 0, 3, 3]
// compare(game: [0, 5, 0, 0, 0, 4], guess: [4, 1, 1, 0, 0, -2]) == [4, 4, 1, 0, 0, 6]
func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}<|file_separator|>

func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
```swift
// I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you have at that moment are
// definitely worth noting down and comparing.
// Your task is to determine if a person correctly guessed the results of a number of matches.
// You are given two arrays of scores and guesses of equal length, where each index shows a match. 
// Return an array of the same length denoting how far off each guess was. If they have guessed correctly,
// the value is 0, and if not, the value is the absolute difference between the guess and the score.
// example:
// compare(game: [1, 2, 3, 4, 5, 1], guess: [1, 2, 3, 4, 2, -2]) == [0, 0, 0, 0, 3, 3]
// compare(game: [0, 5, 0, 0, 0, 4], guess: [4, 1, 1, 0, 0, -2]) == [4, 4, 1, 0, 0, 6]
func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
<|file_separator|>

func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
```swift
// I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you have at that moment are
// definitely worth noting down and comparing.
// Your task is to determine if a person correctly guessed the results of a number of matches.
// You are given two arrays of scores and guesses of equal length, where each index shows a match. 
// Return an array of the same length denoting how far off each guess was. If they have guessed correctly,
// the value is 0, and if not, the value is the absolute difference between the guess and the score.
// example:
// compare(game: [1, 2, 3, 4, 5, 1], guess: [1, 2, 3, 4, 2, -2]) == [0, 0, 0, 0, 3, 3]
// compare(game: [0, 5, 0, 0, 0, 4], guess: [4, 1, 1, 0, 0, -2]) == [4, 4, 1, 0, 0, 6]
func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
<|file_separator|>

func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
```swift
// I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you have at that moment are
// definitely worth noting down and comparing.
// Your task is to determine if a person correctly guessed the results of a number of matches.
// You are given two arrays of scores and guesses of equal length, where each index shows a match. 
// Return an array of the same length denoting how far off each guess was. If they have guessed correctly,
// the value is 0, and if not, the value is the absolute difference between the guess and the score.
// example:
// compare(game: [1, 2, 3, 4, 5, 1], guess: [1, 2, 3, 4, 2, -2]) == [0, 0, 0, 0, 3, 3]
// compare(game: [0, 5, 0, 0, 0, 4], guess: [4, 1, 1, 0, 0, -2]) == [4, 4, 1, 0, 0, 6]
func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
<|file_separator|>

func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
```swift
// I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you have at that moment are
// definitely worth noting down and comparing.
// Your task is to determine if a person correctly guessed the results of a number of matches.
// You are given two arrays of scores and guesses of equal length, where each index shows a match. 
// Return an array of the same length denoting how far off each guess was. If they have guessed correctly,
// the value is 0, and if not, the value is the absolute difference between the guess and the score.
// example:
// compare(game: [1, 2, 3, 4, 5, 1], guess: [1, 2, 3, 4, 2, -2]) == [0, 0, 0, 0, 3, 3]
// compare(game: [0, 5, 0, 0, 0, 4], guess: [4, 1, 1, 0, 0, -2]) == [4, 4, 1, 0, 0, 6]
func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
<|file_separator|>

func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
```swift
// I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you have at that moment are
// definitely worth noting down and comparing.
// Your task is to determine if a person correctly guessed the results of a number of matches.
// You are given two arrays of scores and guesses of equal length, where each index shows a match. 
// Return an array of the same length denoting how far off each guess was. If they have guessed correctly,
// the value is 0, and if not, the value is the absolute difference between the guess and the score.
// example:
// compare(game: [1, 2, 3, 4, 5, 1], guess: [1, 2, 3, 4, 2, -2]) == [0, 0, 0, 0, 3, 3]
// compare(game: [0, 5, 0, 0, 0, 4], guess: [4, 1, 1, 0, 0, -2]) == [4, 4, 1, 0, 0, 6]
func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}<|file_separator|>

func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
```swift
// I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you have at that moment are
// definitely worth noting down and comparing.
// Your task is to determine if a person correctly guessed the results of a number of matches.
// You are given two arrays of scores and guesses of equal length, where each index shows a match. 
// Return an array of the same length denoting how far off each guess was. If they have guessed correctly,
// the value is 0, and if not, the value is the absolute difference between the guess and the score.
// example:
// compare(game: [1, 2, 3, 4, 5, 1], guess: [1, 2, 3, 4, 2, -2]) == [0, 0, 0, 0, 3, 3]
// compare(game: [0, 5, 0, 0, 0, 4], guess: [4, 1, 1, 0, 0, -2]) == [4, 4, 1, 0, 0, 6]
func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
<|file_separator|>

func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
```swift
// I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you have at that moment are
// definitely worth noting down and comparing.
// Your task is to determine if a person correctly guessed the results of a number of matches.
// You are given two arrays of scores and guesses of equal length, where each index shows a match. 
// Return an array of the same length denoting how far off each guess was. If they have guessed correctly,
// the value is 0, and if not, the value is the absolute difference between the guess and the score.
// example:
// compare(game: [1, 2, 3, 4, 5, 1], guess: [1, 2, 3, 4, 2, -2]) == [0, 0, 0, 0, 3, 3]
// compare(game: [0, 5, 0, 0, 0, 4], guess: [4, 1, 1, 0, 0, -2]) == [4, 4, 1, 0, 0, 6]
func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
<|file_separator|>

func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}
```swift
// I think we all remember that feeling when the result of some long-awaited
// event is finally known. The feelings and thoughts you have at that moment are
// definitely worth noting down and comparing.
// Your task is to determine if a person correctly guessed the results of a number of matches.
// You are given two arrays of scores and guesses of equal length, where each index shows a match. 
// Return an array of the same length denoting how far off each guess was. If they have guessed correctly,
// the value is 0, and if not, the value is the absolute difference between the guess and the score.
// example:
// compare(game: [1, 2, 3, 4, 5, 1], guess: [1, 2, 3, 4, 2, -2]) == [0, 0, 0, 0, 3, 3]
// compare(game: [0, 5, 0, 0, 0, 4], guess: [4, 1, 1, 0, 0, -2]) == [4, 4, 1, 0, 0, 6]
func compare(game: [Int], guess: [Int]) -> [Int] {
    var result = [Int]()
    for i in 0..<game.count {
        if game[i] == guess[i] {
            result.append(0)
        } else {
            result.append(abs(game[i] - guess[i]))
        }
    }
    return result
}<|file_separator|>

func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var max_name = ""
    for i in 0..<extensions.count {
        var name = extensions[i]
        var strength = 0
        for j in 0..<name.count {
            if name[j] >= "A" && name[j] <= "Z" {
                strength += 1
            } else if name[j] >= "a" && name[j] <= "z" {
                strength -= 1
            }
        }
        if strength > max {
            max = strength
            max_name = name
        } else if strength == max {
            if name < max_name {
                max = strength
                max_name = name
            }
        }
    }
    return className + "." + max_name
}
```swift
// You will be given the name of a class (a string) and an array of extensions.
// The extensions are to be used to load additional classes to the class. The
// strength of the extension is as follows: Let CAP be the number of the uppercase
// letters in the extension's name, and let SM be the number of lowercase letters 
// in the extension's name, the strength is given by the fraction CAP - SM. 
// You should find the strongest extension and return a string in this 
// format: ClassName.StrongestExtensionName.
// If there are two or more extensions with the same strength, you should
// choose the one that comes first in the array.
// For example, if you are given "Slices" as the class and an array of the
// extensions: ['SErviNGSliCes', 'Cheese', 'StuFfed'] then you should
// return 'Slices.SErviNGSliCes' since 'SErviNGSliCes' is the strongest extension 
// (its strength is -1).
// Example:
// Strongest_Extension(className: "myClass", extensions: ["AA", "Be", "CC"]) == "my_class.AA"
func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var max_name = ""
    for i in 0..<extensions.count {
        var name = extensions[i]
        var strength = 0
        for j in 0..<name.count {
            if name[j] >= "A" && name[j] <= "Z" {
                strength += 1
            } else if name[j] >= "a" && name[j] <= "z" {
                strength -= 1
            }
        }
        if strength > max {
            max = strength
            max_name = name
        } else if strength == max {
            if name < max_name {
                max = strength
                max_name = name
            }
        }
    }
    return className + "." + max_name
}
<|file_separator|>
var name = extensions[i] // variable 'name' was never mutated; consider changing to 'let' constant
if name[j] >= "A" && name[j] <= "Z" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if name[j] >= "A" && name[j] <= "Z" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
} else if name[j] >= "a" && name[j] <= "z" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
} else if name[j] >= "a" && name[j] <= "z" { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var max_name = ""
    for i in 0..<extensions.count {
        var strength = 0
        for j in 0..<extensions[i].count {
            if extensions[i][j].isUppercase {
                strength += 1
            } else {
                strength -= 1
            }
        }
        if strength > max {
            max = strength
            max_name = extensions[i]
        }
    }
    return className + "." + max_name
}
```swift
// You will be given the name of a class (a string) and an array of extensions.
// The extensions are to be used to load additional classes to the class. The
// strength of the extension is as follows: Let CAP be the number of the uppercase
// letters in the extension's name, and let SM be the number of lowercase letters 
// in the extension's name, the strength is given by the fraction CAP - SM. 
// You should find the strongest extension and return a string in this 
// format: ClassName.StrongestExtensionName.
// If there are two or more extensions with the same strength, you should
// choose the one that comes first in the array.
// For example, if you are given "Slices" as the class and an array of the
// extensions: ['SErviNGSliCes', 'Cheese', 'StuFfed'] then you should
// return 'Slices.SErviNGSliCes' since 'SErviNGSliCes' is the strongest extension 
// (its strength is -1).
// Example:
// Strongest_Extension(className: "myClass", extensions: ["AA", "Be", "CC"]) == "my_class.AA"
func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var max_name = ""
    for i in 0..<extensions.count {
        var strength = 0
        for j in 0..<extensions[i].count {
            if extensions[i][j].isUppercase {
                strength += 1
            } else {
                strength -= 1
            }
        }
        if strength > max {
            max = strength
            max_name = extensions[i]
        }
    }
    return className + "." + max_name
}
<|file_separator|>
if extensions[i][j].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func Strongest_Extension(className: String, extensions: [String]) -> String {
    // your code here
    var max = 0
    var max_name = ""
    for i in extensions{
        var strength = 0
        for j in i{
            if j.isUppercase{
                strength += 1
            }
            else{
                strength -= 1
            }
        }
        if strength > max{
            max = strength
            max_name = i
        }
    }
    return className + "." + max_name
}
```swift
// You will be given the name of a class (a string) and an array of extensions.
// The extensions are to be used to load additional classes to the class. The
// strength of the extension is as follows: Let CAP be the number of the uppercase
// letters in the extension's name, and let SM be the number of lowercase letters 
// in the extension's name, the strength is given by the fraction CAP - SM. 
// You should find the strongest extension and return a string in this 
// format: ClassName.StrongestExtensionName.
// If there are two or more extensions with the same strength, you should
// choose the one that comes first in the array.
// For example, if you are given "Slices" as the class and an array of the
// extensions: ['SErviNGSliCes', 'Cheese', 'StuFfed'] then you should
// return 'Slices.SErviNGSliCes' since 'SErviNGSliCes' is the strongest extension 
// (its strength is -1).
// Example:
// Strongest_Extension(className: "myClass", extensions: ["AA", "Be", "CC"]) == "my_class.AA"
func Strongest_Extension(className: String, extensions: [String]) -> String {
    // your code here
    var max = 0
    var max_name = ""
    for i in extensions{
        var strength = 0
        for j in i{
            if j.isUppercase{
                strength += 1
            }
            else{
                strength -= 1
            }
        }
        if strength > max{
            max = strength
            max_name = i
        }
    }
    return className + "." + max_name
}
<|file_separator|>
 // XCTAssertTrue failed

func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var max_name = ""
    for i in extensions {
        var strength = 0
        for j in i {
            if j >= "A" && j <= "Z" {
                strength += 1
            }
            else {
                strength -= 1
            }
        }
        if strength > max {
            max = strength
            max_name = i
        }
    }
    return className + "." + max_name
}
```swift
// You will be given the name of a class (a string) and an array of extensions.
// The extensions are to be used to load additional classes to the class. The
// strength of the extension is as follows: Let CAP be the number of the uppercase
// letters in the extension's name, and let SM be the number of lowercase letters 
// in the extension's name, the strength is given by the fraction CAP - SM. 
// You should find the strongest extension and return a string in this 
// format: ClassName.StrongestExtensionName.
// If there are two or more extensions with the same strength, you should
// choose the one that comes first in the array.
// For example, if you are given "Slices" as the class and an array of the
// extensions: ['SErviNGSliCes', 'Cheese', 'StuFfed'] then you should
// return 'Slices.SErviNGSliCes' since 'SErviNGSliCes' is the strongest extension 
// (its strength is -1).
// Example:
// Strongest_Extension(className: "myClass", extensions: ["AA", "Be", "CC"]) == "my_class.AA"
func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var max_name = ""
    for i in extensions {
        var strength = 0
        for j in i {
            if j >= "A" && j <= "Z" {
                strength += 1
            }
            else {
                strength -= 1
            }
        }
        if strength > max {
            max = strength
            max_name = i
        }
    }
    return className + "." + max_name
}
<|file_separator|>
 // XCTAssertTrue failed

func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var max_name = ""
    for i in 0..<extensions.count {
        let name = extensions[i]
        let cap = name.filter { $0.isUppercase }.count
        let sm = name.filter { $0.isLowercase }.count
        let strength = cap - sm
        if strength > max {
            max = strength
            max_name = name
        }
    }
    return className + "." + max_name
}
```swift
// You will be given the name of a class (a string) and an array of extensions.
// The extensions are to be used to load additional classes to the class. The
// strength of the extension is as follows: Let CAP be the number of the uppercase
// letters in the extension's name, and let SM be the number of lowercase letters 
// in the extension's name, the strength is given by the fraction CAP - SM. 
// You should find the strongest extension and return a string in this 
// format: ClassName.StrongestExtensionName.
// If there are two or more extensions with the same strength, you should
// choose the one that comes first in the array.
// For example, if you are given "Slices" as the class and an array of the
// extensions: ['SErviNGSliCes', 'Cheese', 'StuFfed'] then you should
// return 'Slices.SErviNGSliCes' since 'SErviNGSliCes' is the strongest extension 
// (its strength is -1).
// Example:
// Strongest_Extension(className: "myClass", extensions: ["AA", "Be", "CC"]) == "my_class.AA"
func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var max_name = ""
    for i in 0..<extensions.count {
        let name = extensions[i]
        let cap = name.filter { $0.isUppercase }.count
        let sm = name.filter { $0.isLowercase }.count
        let strength = cap - sm
        if strength > max {
            max = strength
            max_name = name
        }
    }
    return className + "." + max_name
}
<|file_separator|>
 // XCTAssertTrue failed

func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var max_name = ""
    for i in 0..<extensions.count {
        var cap = 0
        var sm = 0
        for j in 0..<extensions[i].count {
            if extensions[i][j].isUppercase {
                cap += 1
            } else {
                sm += 1
            }
        }
        if cap - sm > max {
            max = cap - sm
            max_name = className + "." + extensions[i]
        }
    }
    return max_name
}
```swift
// You will be given the name of a class (a string) and an array of extensions.
// The extensions are to be used to load additional classes to the class. The
// strength of the extension is as follows: Let CAP be the number of the uppercase
// letters in the extension's name, and let SM be the number of lowercase letters 
// in the extension's name, the strength is given by the fraction CAP - SM. 
// You should find the strongest extension and return a string in this 
// format: ClassName.StrongestExtensionName.
// If there are two or more extensions with the same strength, you should
// choose the one that comes first in the array.
// For example, if you are given "Slices" as the class and an array of the
// extensions: ['SErviNGSliCes', 'Cheese', 'StuFfed'] then you should
// return 'Slices.SErviNGSliCes' since 'SErviNGSliCes' is the strongest extension 
// (its strength is -1).
// Example:
// Strongest_Extension(className: "myClass", extensions: ["AA", "Be", "CC"]) == "my_class.AA"
func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var max_name = ""
    for i in 0..<extensions.count {
        var cap = 0
        var sm = 0
        for j in 0..<extensions[i].count {
            if extensions[i][j].isUppercase {
                cap += 1
            } else {
                sm += 1
            }
        }
        if cap - sm > max {
            max = cap - sm
            max_name = className + "." + extensions[i]
        }
    }
    return max_name
}
<|file_separator|>
if extensions[i][j].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func Strongest_Extension(className: String, extensions: [String]) -> String {
    // your code here
    var max = 0
    var max_name = ""
    for i in 0..<extensions.count {
        let name = extensions[i]
        let cap = name.filter({$0.isUppercase}).count
        let sm = name.filter({$0.isLowercase}).count
        let strength = cap - sm
        if strength > max {
            max = strength
            max_name = name
        }
    }
    return className + "." + max_name
}
```swift
// You will be given the name of a class (a string) and an array of extensions.
// The extensions are to be used to load additional classes to the class. The
// strength of the extension is as follows: Let CAP be the number of the uppercase
// letters in the extension's name, and let SM be the number of lowercase letters 
// in the extension's name, the strength is given by the fraction CAP - SM. 
// You should find the strongest extension and return a string in this 
// format: ClassName.StrongestExtensionName.
// If there are two or more extensions with the same strength, you should
// choose the one that comes first in the array.
// For example, if you are given "Slices" as the class and an array of the
// extensions: ['SErviNGSliCes', 'Cheese', 'StuFfed'] then you should
// return 'Slices.SErviNGSliCes' since 'SErviNGSliCes' is the strongest extension 
// (its strength is -1).
// Example:
// Strongest_Extension(className: "myClass", extensions: ["AA", "Be", "CC"]) == "my_class.AA"
func Strongest_Extension(className: String, extensions: [String]) -> String {
    // your code here
    var max = 0
    var max_name = ""
    for i in 0..<extensions.count {
        let name = extensions[i]
        let cap = name.filter({$0.isUppercase}).count
        let sm = name.filter({$0.isLowercase}).count
        let strength = cap - sm
        if strength > max {
            max = strength
            max_name = name
        }
    }
    return className + "." + max_name
}
<|file_separator|>
 // XCTAssertTrue failed

func Strongest_Extension(className: String, extensions: [String]) -> String {
    var maxStrength = 0
    var strongestExtension = ""
    for extensionName in extensions {
        let strength = extensionName.count - extensionName.lowercased().count
        if strength > maxStrength {
            maxStrength = strength
            strongestExtension = extensionName
        } else if strength == maxStrength {
            if extensionName < strongestExtension {
                strongestExtension = extensionName
            }
        }
    }
    return className + "." + strongestExtension
}
```swift
// You will be given the name of a class (a string) and an array of extensions.
// The extensions are to be used to load additional classes to the class. The
// strength of the extension is as follows: Let CAP be the number of the uppercase
// letters in the extension's name, and let SM be the number of lowercase letters 
// in the extension's name, the strength is given by the fraction CAP - SM. 
// You should find the strongest extension and return a string in this 
// format: ClassName.StrongestExtensionName.
// If there are two or more extensions with the same strength, you should
// choose the one that comes first in the array.
// For example, if you are given "Slices" as the class and an array of the
// extensions: ['SErviNGSliCes', 'Cheese', 'StuFfed'] then you should
// return 'Slices.SErviNGSliCes' since 'SErviNGSliCes' is the strongest extension 
// (its strength is -1).
// Example:
// Strongest_Extension(className: "myClass", extensions: ["AA", "Be", "CC"]) == "my_class.AA"
func Strongest_Extension(className: String, extensions: [String]) -> String {
    var maxStrength = 0
    var strongestExtension = ""
    for extensionName in extensions {
        let strength = extensionName.count - extensionName.lowercased().count
        if strength > maxStrength {
            maxStrength = strength
            strongestExtension = extensionName
        } else if strength == maxStrength {
            if extensionName < strongestExtension {
                strongestExtension = extensionName
            }
        }
    }
    return className + "." + strongestExtension
}
<|file_separator|>
 // XCTAssertTrue failed

func Strongest_Extension(className: String, extensions: [String]) -> String {
    // your code here
    var max = 0
    var max_name = ""
    for i in extensions {
        if i.count > max {
            max = i.count
            max_name = i
        }
    }
    return className + "." + max_name
}
```swift
// You will be given the name of a class (a string) and an array of extensions.
// The extensions are to be used to load additional classes to the class. The
// strength of the extension is as follows: Let CAP be the number of the uppercase
// letters in the extension's name, and let SM be the number of lowercase letters 
// in the extension's name, the strength is given by the fraction CAP - SM. 
// You should find the strongest extension and return a string in this 
// format: ClassName.StrongestExtensionName.
// If there are two or more extensions with the same strength, you should
// choose the one that comes first in the array.
// For example, if you are given "Slices" as the class and an array of the
// extensions: ['SErviNGSliCes', 'Cheese', 'StuFfed'] then you should
// return 'Slices.SErviNGSliCes' since 'SErviNGSliCes' is the strongest extension 
// (its strength is -1).
// Example:
// Strongest_Extension(className: "myClass", extensions: ["AA", "Be", "CC"]) == "my_class.AA"
func Strongest_Extension(className: String, extensions: [String]) -> String {
    // your code here
    var max = 0
    var max_name = ""
    for i in extensions {
        if i.count > max {
            max = i.count
            max_name = i
        }
    }
    return className + "." + max_name
}
<|file_separator|>
 // XCTAssertTrue failed

func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var maxStr = ""
    for ext in extensions {
        let cap = ext.filter { $0.isUppercase }.count
        let low = ext.filter { $0.isLowercase }.count
        let strength = cap - low
        if strength > max {
            max = strength
            maxStr = ext
        } else if strength == max {
            if ext < maxStr {
                maxStr = ext
            }
        }
    }
    return className + "." + maxStr
}
```swift
// You will be given the name of a class (a string) and an array of extensions.
// The extensions are to be used to load additional classes to the class. The
// strength of the extension is as follows: Let CAP be the number of the uppercase
// letters in the extension's name, and let SM be the number of lowercase letters 
// in the extension's name, the strength is given by the fraction CAP - SM. 
// You should find the strongest extension and return a string in this 
// format: ClassName.StrongestExtensionName.
// If there are two or more extensions with the same strength, you should
// choose the one that comes first in the array.
// For example, if you are given "Slices" as the class and an array of the
// extensions: ['SErviNGSliCes', 'Cheese', 'StuFfed'] then you should
// return 'Slices.SErviNGSliCes' since 'SErviNGSliCes' is the strongest extension 
// (its strength is -1).
// Example:
// Strongest_Extension(className: "myClass", extensions: ["AA", "Be", "CC"]) == "my_class.AA"
func Strongest_Extension(className: String, extensions: [String]) -> String {
    var max = 0
    var maxStr = ""
    for ext in extensions {
        let cap = ext.filter { $0.isUppercase }.count
        let low = ext.filter { $0.isLowercase }.count
        let strength = cap - low
        if strength > max {
            max = strength
            maxStr = ext
        } else if strength == max {
            if ext < maxStr {
                maxStr = ext
            }
        }
    }
    return className + "." + maxStr
}
<|file_separator|>
 // XCTAssertTrue failed

```swift
// You are given 2 words. You need to return true if the second word or any of its rotations is a substring in the first word
// cycpatternCheck(a: "abcd", b: "abd") == false
// cycpatternCheck(a: "hello", b: "ell") == true
// cycpatternCheck(a: "whassup", b: "psus") == false
// cycpatternCheck(a: "abab", b: "baa") == true
// cycpatternCheck(a: "efef", b: "eeff") == false
// cycpatternCheck(a: "himenss", b: "simen") == true
func cycpatternCheck(a: String, b: String) -> Bool {
    let a = a.lowercased()
    let b = b.lowercased()
    let b1 = b.reversed()
    let b2 = b.reversed()
    let b3 = b.reversed()
    let b4 = b.reversed()
    let b5 = b.reversed()
    let b6 = b.reversed()
    let b7 = b.reversed()
    let b8 = b.reversed()
    let b9 = b.reversed()
    let b10 = b.reversed()
    let b11 = b.reversed()
    let b12 = b.reversed()
    let b13 = b.reversed()
    let b14 = b.reversed()
    let b15 = b.reversed()
    let b16 = b.reversed()
    let b17 = b.reversed()
    let b18 = b.reversed()
    let b19 = b.reversed()
    let b20 = b.reversed()
    let b21 = b.reversed()
    let b22 = b.reversed()
    let b23 = b.reversed()
    let b24 = b.reversed()
    let b25 = b.reversed()
    let b26 = b.reversed()
    let b27 = b.reversed()
    let b28 = b.reversed()
    let b29 = b.reversed()
    let b30 = b.reversed()
    let b31 = b.reversed()
    let b32 = b.reversed()
    let b33 = b.reversed()
    let b34 = b.reversed()
    let b35 = b.reversed()
    let b36 = b.reversed()
    let b37 = b.reversed()
    let b38 = b.reversed()
    let b39 = b.reversed()
    let b40 = b.reversed()
    let b41 = b.reversed()
    let b42 = b.reversed()
    let b43 = b.reversed()
    let b44 = b.reversed()
    let b45 = b.reversed()
    let b46 = b.reversed()
    let b47 = b.reversed()
    let b48 = b.reversed()
    let b49 = b.reversed()
    let b50 = b.reversed()
    let b51 = b.reversed()
    let b52 = b.reversed()
    let b53 = b.reversed()
    let b54 = b.reversed()
    let b55 = b.reversed()
    let b56 = b.reversed()
    let b57 = b.reversed()
    let b58 = b.reversed()
    let b59 = b.reversed()
    let b60 = b.reversed()
    let b61 = b.reversed()
    let b62 = b.reversed()
    let b63 = b.reversed()
    let b64 = b.reversed()
    let b65 = b.reversed()
    let b66 = b.reversed()
    let b67 = b.reversed()
    let b68 = b.reversed()
    let b69 = b.reversed()
    let b70 = b.reversed()
    let b71 = b.reversed()
    let b72 = b.reversed()
    let b73 = b.reversed()
    let b74 = b.reversed()
    let b75 = b.reversed()
    let b76 = b.reversed()
    let b77 = b.reversed()
    let b78 = b.reversed()
    let b79 = b.reversed()
    let b80 = b.reversed()
    let b81 = b.reversed()
    let b82 = b.reversed()
    let b83 = b.reversed()
    let b84 = b.reversed()
    let b85 = b.reversed()
    let b86 = b.reversed()
    let b87 = b.reversed()
    let b88 = b.reversed()
    let b89 = b.reversed()
    let b90 = b.reversed()
    let b91 = b.reversed()
    let b92 = b.reversed()
XCTAssertTrue(cycpatternCheck(a: "xyzw", b: "xyw") == false) // cannot find 'cycpatternCheck' in scope
XCTAssertTrue(cycpatternCheck(a: "yello", b: "ell") == true) // cannot find 'cycpatternCheck' in scope
XCTAssertTrue(cycpatternCheck(a: "whattup", b: "ptut") == false) // cannot find 'cycpatternCheck' in scope
XCTAssertTrue(cycpatternCheck(a: "efef", b: "fee") == true) // cannot find 'cycpatternCheck' in scope
XCTAssertTrue(cycpatternCheck(a: "abab", b: "aabb") == false) // cannot find 'cycpatternCheck' in scope
XCTAssertTrue(cycpatternCheck(a: "winemtt", b: "tinem") == true) // cannot find 'cycpatternCheck' in scope

func cycpatternCheck(a: String, b: String) -> Bool {
    if a.count < b.count {
        return false
    }
    let bLength = b.count
    for i in 0..<a.count - bLength + 1 {
        if a[i...i+bLength-1] == b {
            return true
        }
    }
    return false
}
```swift
// You are given 2 words. You need to return true if the second word or any of its rotations is a substring in the first word
// cycpatternCheck(a: "abcd", b: "abd") == false
// cycpatternCheck(a: "hello", b: "ell") == true
// cycpatternCheck(a: "whassup", b: "psus") == false
// cycpatternCheck(a: "abab", b: "baa") == true
// cycpatternCheck(a: "efef", b: "eeff") == false
// cycpatternCheck(a: "himenss", b: "simen") == true
func cycpatternCheck(a: String, b: String) -> Bool {
    if a.count < b.count {
        return false
    }
    let bLength = b.count
    for i in 0..<a.count - bLength + 1 {
        if a[i...i+bLength-1] == b {
            return true
        }
    }
    return false
}
<|file_separator|>
if a[i...i+bLength-1] == b { // 'subscript(_:)' is unavailable: cannot subscript String with an integer range, use a String.Index range instead.

func cycpatternCheck(a: String, b: String) -> Bool {
    let aArray = Array(a)
    let bArray = Array(b)
    
    if aArray.count != bArray.count {
        return false
    }
    
    for i in 0..<aArray.count {
        if aArray[i] == bArray[0] {
            var tempArray = Array(aArray[i..<aArray.count])
            tempArray.append(contentsOf: aArray[0..<i])
            
            if tempArray.joined() == b {
                return true
            }
        }
    }
    
    return false
}
```swift
// You are given 2 words. You need to return true if the second word or any of its rotations is a substring in the first word
// cycpatternCheck(a: "abcd", b: "abd") == false
// cycpatternCheck(a: "hello", b: "ell") == true
// cycpatternCheck(a: "whassup", b: "psus") == false
// cycpatternCheck(a: "abab", b: "baa") == true
// cycpatternCheck(a: "efef", b: "eeff") == false
// cycpatternCheck(a: "himenss", b: "simen") == true
func cycpatternCheck(a: String, b: String) -> Bool {
    let aArray = Array(a)
    let bArray = Array(b)
    
    if aArray.count != bArray.count {
        return false
    }
    
    for i in 0..<aArray.count {
        if aArray[i] == bArray[0] {
            var tempArray = Array(aArray[i..<aArray.count])
            tempArray.append(contentsOf: aArray[0..<i])
            
            if tempArray.joined() == b {
                return true
            }
        }
    }
    
    return false
}
<|file_separator|>
if tempArray.joined() == b { // no exact matches in call to instance method 'joined'

func cycpatternCheck(a: String, b: String) -> Bool {
    if a.count != b.count {
        return false
    }
    
    let aArray = Array(a)
    let bArray = Array(b)
    
    for i in 0..<aArray.count {
        let subArray = Array(aArray[i..<aArray.count])
        let subArray2 = Array(aArray[0..<i])
        
        if subArray.joined() == bArray.joined() || subArray2.joined() == bArray.joined() {
            return true
        }
    }
    
    return false
}

func palindromeCheck(a: String) -> Bool {
    let aArray = Array(a)
    
    for i in 0..<aArray.count/2 {
        if aArray[i] != aArray[aArray.count - i - 1] {
            return false
        }
    }
    
    return true
}
```swift
// You are given 2 words. You need to return true if the second word or any of its rotations is a substring in the first word
// cycpatternCheck(a: "abcd", b: "abd") == false
// cycpatternCheck(a: "hello", b: "ell") == true
// cycpatternCheck(a: "whassup", b: "psus") == false
// cycpatternCheck(a: "abab", b: "baa") == true
// cycpatternCheck(a: "efef", b: "eeff") == false
// cycpatternCheck(a: "himenss", b: "simen") == true
func cycpatternCheck(a: String, b: String) -> Bool {
    if a.count != b.count {
        return false
    }
    
    let aArray = Array(a)
    let bArray = Array(b)
    
    for i in 0..<aArray.count {
        let subArray = Array(aArray[i..<aArray.count])
        let subArray2 = Array(aArray[0..<i])
        
        if subArray.joined() == bArray.joined() || subArray2.joined() == bArray.joined() {
            return true
        }
    }
    
    return false
}

// You are given a string. You need to return true if the string is a palindrome.
// palindromeCheck(a: "abba") == true
// palindromeCheck(a: "abbc") == false
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
func palindromeCheck(a: String) -> Bool {
    let aArray = Array(a)
    
    for i in 0..<aArray.count/2 {
        if aArray[i] != aArray[aArray.count - i - 1] {
            return false
        }
    }
    
    return true
}

// You are given a string. You need to return true if the string is a palindrome.
// palindromeCheck(a: "abba") == true
// palindromeCheck(a: "abbc") == false
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
func palindromeCheck(a: String) -> Bool {
    let aArray = Array(a)
    
    for i in 0..<aArray.count/2 {
        if aArray[i] != aArray[aArray.count - i - 1] {
            return false
        }
    }
    
    return true
}

// You are given a string. You need to return true if the string is a palindrome.
// palindromeCheck(a: "abba") == true
// palindromeCheck(a: "abbc") == false
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
func palindromeCheck(a: String) -> Bool {
    let aArray = Array(a)
    
    for i in 0..<aArray.count/2 {
        if aArray[i] != aArray[aArray.count - i - 1] {
            return false
        }
    }
    
    return true
}

// You are given a string. You need to return true if the string is a palindrome.
// palindromeCheck(a: "abba") == true
// palindromeCheck(a: "abbc") == false
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
func palindromeCheck(a: String) -> Bool {
    let aArray = Array(a)
    
    for i in 0..<aArray.count/2 {
        if aArray[i] != aArray[aArray.count - i - 1] {
            return false
        }
    }
    
    return true
}

// You are given a string. You need to return true if the string is a palindrome.
// palindromeCheck(a: "abba") == true
// palindromeCheck(a: "abbc") == false
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
// palindromeCheck(a: "abccba") == true
func palindromeCheck(a: String) -> Bool {
    let aArray = Array(a)
    
    for i in 0..<aArray.count/2 {
        if aArray[i] != aArray[aArray.count - i - 1] {
if subArray.joined() == bArray.joined() || subArray2.joined() == bArray.joined() { // referencing instance method 'joined(separator:)' on 'BidirectionalCollection' requires the types 'String.Element' (aka 'Character') and 'String' be equivalent
if subArray.joined() == bArray.joined() || subArray2.joined() == bArray.joined() { // referencing instance method 'joined(separator:)' on 'BidirectionalCollection' requires the types 'String.Element' (aka 'Character') and 'String' be equivalent
if subArray.joined() == bArray.joined() || subArray2.joined() == bArray.joined() { // referencing instance method 'joined(separator:)' on 'BidirectionalCollection' requires the types 'String.Element' (aka 'Character') and 'String' be equivalent
if subArray.joined() == bArray.joined() || subArray2.joined() == bArray.joined() { // referencing instance method 'joined(separator:)' on 'BidirectionalCollection' requires the types 'String.Element' (aka 'Character') and 'String' be equivalent

func cycpatternCheck(a: String, b: String) -> Bool {
    let aArray = Array(a)
    let bArray = Array(b)
    
    if aArray.count != bArray.count {
        return false
    }
    
    for i in 0..<aArray.count {
        var newAArray = aArray
        newAArray.remove(at: i)
        if newAArray.joined() == bArray.joined() {
            return true
        }
    }
    
    return false
}
```swift
// You are given 2 words. You need to return true if the second word or any of its rotations is a substring in the first word
// cycpatternCheck(a: "abcd", b: "abd") == false
// cycpatternCheck(a: "hello", b: "ell") == true
// cycpatternCheck(a: "whassup", b: "psus") == false
// cycpatternCheck(a: "abab", b: "baa") == true
// cycpatternCheck(a: "efef", b: "eeff") == false
// cycpatternCheck(a: "himenss", b: "simen") == true
func cycpatternCheck(a: String, b: String) -> Bool {
    let aArray = Array(a)
    let bArray = Array(b)
    
    if aArray.count != bArray.count {
        return false
    }
    
    for i in 0..<aArray.count {
        var newAArray = aArray
        newAArray.remove(at: i)
        if newAArray.joined() == bArray.joined() {
            return true
        }
    }
    
    return false
}
<|file_separator|>
if newAArray.joined() == bArray.joined() { // no exact matches in call to instance method 'joined'
if newAArray.joined() == bArray.joined() { // no exact matches in call to instance method 'joined'

func cycpatternCheck(a: String, b: String) -> Bool {
    let aArray = Array(a)
    let bArray = Array(b)
    
    if aArray.count != bArray.count {
        return false
    }
    
    for i in 0..<aArray.count {
        var tempArray = aArray
        tempArray.remove(at: i)
        if tempArray.joined() == bArray.joined() {
            return true
        }
    }
    
    return false
}
```swift
// You are given 2 words. You need to return true if the second word or any of its rotations is a substring in the first word
// cycpatternCheck(a: "abcd", b: "abd") == false
// cycpatternCheck(a: "hello", b: "ell") == true
// cycpatternCheck(a: "whassup", b: "psus") == false
// cycpatternCheck(a: "abab", b: "baa") == true
// cycpatternCheck(a: "efef", b: "eeff") == false
// cycpatternCheck(a: "himenss", b: "simen") == true
func cycpatternCheck(a: String, b: String) -> Bool {
    let aArray = Array(a)
    let bArray = Array(b)
    
    if aArray.count != bArray.count {
        return false
    }
    
    for i in 0..<aArray.count {
        var tempArray = aArray
        tempArray.remove(at: i)
        if tempArray.joined() == bArray.joined() {
            return true
        }
    }
    
    return false
}
<|file_separator|>
if tempArray.joined() == bArray.joined() { // no exact matches in call to instance method 'joined'
if tempArray.joined() == bArray.joined() { // no exact matches in call to instance method 'joined'

func cycpatternCheck(a: String, b: String) -> Bool {
    if a == b {
        return true
    }
    
    let a = a.lowercased()
    let b = b.lowercased()
    
    for i in 0..<a.count {
        if a.contains(b) {
            return true
        }
        let rotated = a.rotate(by: i)
        if rotated == b {
            return true
        }
    }
    
    return false
}

extension String {
    func rotate(by offset: Int) -> String {
        let offset = offset % self.count
        return String(self[self.index(self.startIndex, offsetBy: offset)...]) + String(self[self.index(self.startIndex, offsetBy: offset + self.count)...])
    }
}
```swift
// You are given 2 words. You need to return true if the second word or any of its rotations is a substring in the first word
// cycpatternCheck(a: "abcd", b: "abd") == false
// cycpatternCheck(a: "hello", b: "ell") == true
// cycpatternCheck(a: "whassup", b: "psus") == false
// cycpatternCheck(a: "abab", b: "baa") == true
// cycpatternCheck(a: "efef", b: "eeff") == false
// cycpatternCheck(a: "himenss", b: "simen") == true
func cycpatternCheck(a: String, b: String) -> Bool {
    if a == b {
        return true
    }
    
    let a = a.lowercased()
    let b = b.lowercased()
    
    for i in 0..<a.count {
        if a.contains(b) {
            return true
        }
        let rotated = a.rotate(by: i)
        if rotated == b {
            return true
        }
    }
    
    return false
}

extension String {
    func rotate(by offset: Int) -> String {
        let offset = offset % self.count
        return String(self[self.index(self.startIndex, offsetBy: offset)...]) + String(self[self.index(self.startIndex, offsetBy: offset + self.count)...])
    }
}
<|file_separator|>
 // Fatal error: String index is out of bounds

func cycpatternCheck(a: String, b: String) -> Bool {
    let aArray = Array(a)
    let bArray = Array(b)
    let bArrayLength = bArray.count
    for i in 0..<aArray.count {
        let aSubArray = Array(aArray[i..<aArray.count])
        let bSubArray = Array(bArray[i..<bArray.count])
        if aSubArray.count == bSubArray.count {
            if aSubArray == bSubArray {
                return true
            }
        }
    }
    return false
}
```swift
// You are given 2 words. You need to return true if the second word or any of its rotations is a substring in the first word
// cycpatternCheck(a: "abcd", b: "abd") == false
// cycpatternCheck(a: "hello", b: "ell") == true
// cycpatternCheck(a: "whassup", b: "psus") == false
// cycpatternCheck(a: "abab", b: "baa") == true
// cycpatternCheck(a: "efef", b: "eeff") == false
// cycpatternCheck(a: "himenss", b: "simen") == true
func cycpatternCheck(a: String, b: String) -> Bool {
    let aArray = Array(a)
    let bArray = Array(b)
    let bArrayLength = bArray.count
    for i in 0..<aArray.count {
        let aSubArray = Array(aArray[i..<aArray.count])
        let bSubArray = Array(bArray[i..<bArray.count])
        if aSubArray.count == bSubArray.count {
            if aSubArray == bSubArray {
                return true
            }
        }
    }
    return false
}
<|file_separator|>
let bArrayLength = bArray.count // initialization of immutable value 'bArrayLength' was never used; consider replacing with assignment to '_' or removing it
 // Fatal error: Range requires lowerBound <= upperBound

func cycpatternCheck(a: String, b: String) -> Bool {
    var a = a
    var b = b
    if a.count != b.count {
        return false
    }
    if a == b {
        return true
    }
    for i in 0..<a.count {
        a = a.substring(from: a.index(a.startIndex, offsetBy: i)) + a.substring(to: a.index(a.startIndex, offsetBy: i))
        if a == b {
            return true
        }
    }
    return false
}
```swift
// You are given 2 words. You need to return true if the second word or any of its rotations is a substring in the first word
// cycpatternCheck(a: "abcd", b: "abd") == false
// cycpatternCheck(a: "hello", b: "ell") == true
// cycpatternCheck(a: "whassup", b: "psus") == false
// cycpatternCheck(a: "abab", b: "baa") == true
// cycpatternCheck(a: "efef", b: "eeff") == false
// cycpatternCheck(a: "himenss", b: "simen") == true
func cycpatternCheck(a: String, b: String) -> Bool {
    var a = a
    var b = b
    if a.count != b.count {
        return false
    }
    if a == b {
        return true
    }
    for i in 0..<a.count {
        a = a.substring(from: a.index(a.startIndex, offsetBy: i)) + a.substring(to: a.index(a.startIndex, offsetBy: i))
        if a == b {
            return true
        }
    }
    return false
}
<|file_separator|>
var b = b // variable 'b' was never mutated; consider changing to 'let' constant
a = a.substring(from: a.index(a.startIndex, offsetBy: i)) + a.substring(to: a.index(a.startIndex, offsetBy: i)) // 'substring(from:)' is deprecated: Please use String slicing subscript with a 'partial range from' operator.
a = a.substring(from: a.index(a.startIndex, offsetBy: i)) + a.substring(to: a.index(a.startIndex, offsetBy: i)) // 'substring(to:)' is deprecated: Please use String slicing subscript with a 'partial range upto' operator.
 // XCTAssertTrue failed

func cycpatternCheck(a: String, b: String) -> Bool {
    let aArray = Array(a)
    let bArray = Array(b)
    
    if aArray.count != bArray.count {
        return false
    }
    
    for i in 0..<aArray.count {
        let subArray = Array(aArray[i..<aArray.count])
        let subArray2 = Array(aArray[0..<i])
        let subArray3 = Array(aArray[i..<aArray.count])
        let subArray4 = Array(aArray[0..<i])
        
        if subArray == bArray || subArray2 == bArray || subArray3 == bArray || subArray4 == bArray {
            return true
        }
    }
    
    return false
}
```swift
// You are given 2 words. You need to return true if the second word or any of its rotations is a substring in the first word
// cycpatternCheck(a: "abcd", b: "abd") == false
// cycpatternCheck(a: "hello", b: "ell") == true
// cycpatternCheck(a: "whassup", b: "psus") == false
// cycpatternCheck(a: "abab", b: "baa") == true
// cycpatternCheck(a: "efef", b: "eeff") == false
// cycpatternCheck(a: "himenss", b: "simen") == true
func cycpatternCheck(a: String, b: String) -> Bool {
    let aArray = Array(a)
    let bArray = Array(b)
    
    if aArray.count != bArray.count {
        return false
    }
    
    for i in 0..<aArray.count {
        let subArray = Array(aArray[i..<aArray.count])
        let subArray2 = Array(aArray[0..<i])
        let subArray3 = Array(aArray[i..<aArray.count])
        let subArray4 = Array(aArray[0..<i])
        
        if subArray == bArray || subArray2 == bArray || subArray3 == bArray || subArray4 == bArray {
            return true
        }
    }
    
    return false
}
<|file_separator|>
 // XCTAssertTrue failed

func evenOddCount(num: Int) -> (Int, Int) {
    let num = abs(num)
    var even = 0
    var odd = 0
    while num > 0 {
        if num % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
```swift
// Given an integer. return a tuple that has the number of even and odd digits respectively.
// Example:
// evenOddCount(num: -12) == (1, 1)
// evenOddCount(num: 123) == (1, 2)
func evenOddCount(num: Int) -> (Int, Int) {
    let num = abs(num)
    var even = 0
    var odd = 0
    while num > 0 {
        if num % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
<|file_separator|>
num /= 10 // left side of mutating operator isn't mutable: 'num' is a 'let' constant

func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var num = num
    while num != 0 {
        if num % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
```swift
// Given an integer. return a tuple that has the number of even and odd digits respectively.
// Example:
// evenOddCount(num: -12) == (1, 1)
// evenOddCount(num: 123) == (1, 2)
func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var num = num
    while num != 0 {
        if num % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
<|file_separator|>
 // XCTAssertTrue failed

func evenOddCount(num: Int) -> (Int, Int) {
    let num = String(abs(num))
    var even = 0
    var odd = 0
    for i in num {
        if Int(String(i))! % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
    }
    return (even, odd)
}
```swift
// Given an integer. return a tuple that has the number of even and odd digits respectively.
// Example:
// evenOddCount(num: -12) == (1, 1)
// evenOddCount(num: 123) == (1, 2)
func evenOddCount(num: Int) -> (Int, Int) {
    let num = String(abs(num))
    var even = 0
    var odd = 0
    for i in num {
        if Int(String(i))! % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
    }
    return (even, odd)
}
<|file_separator|>

func evenOddCount(num: Int) -> (Int, Int) {
    var num = num
    var even = 0
    var odd = 0
    while num != 0 {
        let digit = num % 10
        if digit % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
```swift
// Given an integer. return a tuple that has the number of even and odd digits respectively.
// Example:
// evenOddCount(num: -12) == (1, 1)
// evenOddCount(num: 123) == (1, 2)
func evenOddCount(num: Int) -> (Int, Int) {
    var num = num
    var even = 0
    var odd = 0
    while num != 0 {
        let digit = num % 10
        if digit % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
<|file_separator|>
 // XCTAssertTrue failed

func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var num = num
    while num != 0 {
        let digit = num % 10
        if digit % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
```swift
// Given an integer. return a tuple that has the number of even and odd digits respectively.
// Example:
// evenOddCount(num: -12) == (1, 1)
// evenOddCount(num: 123) == (1, 2)
func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var num = num
    while num != 0 {
        let digit = num % 10
        if digit % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
<|file_separator|>
 // XCTAssertTrue failed

func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var num = num
    while num != 0 {
        let digit = num % 10
        if digit % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num = num / 10
    }
    return (even, odd)
}
```swift
// Given an integer. return a tuple that has the number of even and odd digits respectively.
// Example:
// evenOddCount(num: -12) == (1, 1)
// evenOddCount(num: 123) == (1, 2)
func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var num = num
    while num != 0 {
        let digit = num % 10
        if digit % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num = num / 10
    }
    return (even, odd)
}
<|file_separator|>
 // XCTAssertTrue failed

func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var num = num
    while num != 0 {
        let digit = num % 10
        if digit % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
```swift
// Given an integer. return a tuple that has the number of even and odd digits respectively.
// Example:
// evenOddCount(num: -12) == (1, 1)
// evenOddCount(num: 123) == (1, 2)
func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var num = num
    while num != 0 {
        let digit = num % 10
        if digit % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
<|file_separator|>
 // XCTAssertTrue failed

func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var num = num
    while num > 0 {
        if num % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
```swift
// Given an integer. return a tuple that has the number of even and odd digits respectively.
// Example:
// evenOddCount(num: -12) == (1, 1)
// evenOddCount(num: 123) == (1, 2)
func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var num = num
    while num > 0 {
        if num % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        num /= 10
    }
    return (even, odd)
}
<|file_separator|>
 // XCTAssertTrue failed

func evenOddCount(num: Int) -> (Int, Int) {
  var even = 0
  var odd = 0
  var num = num
  while num != 0 {
    let digit = num % 10
    if digit % 2 == 0 {
      even += 1
    } else {
      odd += 1
    }
    num = num / 10
  }
  return (even, odd)
}
```swift
// Given an integer. return a tuple that has the number of even and odd digits respectively.
// Example:
// evenOddCount(num: -12) == (1, 1)
// evenOddCount(num: 123) == (1, 2)
func evenOddCount(num: Int) -> (Int, Int) {
  var even = 0
  var odd = 0
  var num = num
  while num != 0 {
    let digit = num % 10
    if digit % 2 == 0 {
      even += 1
    } else {
      odd += 1
    }
    num = num / 10
  }
  return (even, odd)
}
<|file_separator|>
 // XCTAssertTrue failed

func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var temp = num
    while temp > 0 {
        let digit = temp % 10
        if digit % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        temp /= 10
    }
    return (even, odd)
}
```swift
// Given an integer. return a tuple that has the number of even and odd digits respectively.
// Example:
// evenOddCount(num: -12) == (1, 1)
// evenOddCount(num: 123) == (1, 2)
func evenOddCount(num: Int) -> (Int, Int) {
    var even = 0
    var odd = 0
    var temp = num
    while temp > 0 {
        let digit = temp % 10
        if digit % 2 == 0 {
            even += 1
        } else {
            odd += 1
        }
        temp /= 10
    }
    return (even, odd)
}
<|file_separator|>
 // XCTAssertTrue failed

func intToMiniRoman(number: Int) -> String {
    let romanNumerals = ["i", "v", "x", "l", "c", "d", "m"]
    var result = ""
    var num = number
    while num > 0 {
        if num >= 1000 {
            result += "m"
            num -= 1000
        } else if num >= 500 {
            if num >= 900 {
                result += "cm"
                num -= 900
            } else {
                result += "d"
                num -= 500
            }
        } else if num >= 100 {
            if num >= 400 {
                result += "cd"
                num -= 400
            } else {
                result += "c"
                num -= 100
            }
        } else if num >= 50 {
            if num >= 90 {
                result += "xc"
                num -= 90
            } else {
                result += "l"
                num -= 50
            }
        } else if num >= 10 {
            if num >= 40 {
                result += "xl"
                num -= 40
            } else {
                result += "x"
                num -= 10
            }
        } else if num >= 5 {
            if num >= 9 {
                result += "ix"
                num -= 9
            } else {
                result += "v"
                num -= 5
            }
        } else {
            if num >= 4 {
                result += "iv"
                num -= 4
            } else {
                result += "i"
                num -= 1
            }
        }
    }
    return result
}
```swift
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// intToMiniRoman(number: 19) == "xix"
// intToMiniRoman(number: 152) == "clii"
// intToMiniRoman(number: 426) == "cdxxvi"
func intToMiniRoman(number: Int) -> String {
    let romanNumerals = ["i", "v", "x", "l", "c", "d", "m"]
    var result = ""
    var num = number
    while num > 0 {
        if num >= 1000 {
            result += "m"
            num -= 1000
        } else if num >= 500 {
            if num >= 900 {
                result += "cm"
                num -= 900
            } else {
                result += "d"
                num -= 500
            }
        } else if num >= 100 {
            if num >= 400 {
                result += "cd"
                num -= 400
            } else {
                result += "c"
                num -= 100
            }
        } else if num >= 50 {
            if num >= 90 {
                result += "xc"
                num -= 90
            } else {
                result += "l"
                num -= 50
            }
        } else if num >= 10 {
            if num >= 40 {
                result += "xl"
                num -= 40
            } else {
                result += "x"
                num -= 10
            }
        } else if num >= 5 {
            if num >= 9 {
                result += "ix"
                num -= 9
            } else {
                result += "v"
                num -= 5
            }
        } else {
            if num >= 4 {
                result += "iv"
                num -= 4
            } else {
                result += "i"
                num -= 1
            }
        }
    }
    return result
}
<|file_separator|>
let romanNumerals = ["i", "v", "x", "l", "c", "d", "m"] // initialization of immutable value 'romanNumerals' was never used; consider replacing with assignment to '_' or removing it

func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i",
    ]
    
    var result = ""
    var num = number
    
    for (value, numeral) in romanNumerals {
        while num >= value {
            result += numeral
            num -= value
        }
    }
    
    return result
}
```swift
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// intToMiniRoman(number: 19) == "xix"
// intToMiniRoman(number: 152) == "clii"
// intToMiniRoman(number: 426) == "cdxxvi"
func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i",
    ]
    
    var result = ""
    var num = number
    
    for (value, numeral) in romanNumerals {
        while num >= value {
            result += numeral
            num -= value
        }
    }
    
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i"
    ]
    
    var result = ""
    var remaining = number
    
    for (value, numeral) in romanNumerals {
        while remaining >= value {
            result += numeral
            remaining -= value
        }
    }
    
    return result.lowercased()
}
```swift
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// intToMiniRoman(number: 19) == "xix"
// intToMiniRoman(number: 152) == "clii"
// intToMiniRoman(number: 426) == "cdxxvi"
func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i"
    ]
    
    var result = ""
    var remaining = number
    
    for (value, numeral) in romanNumerals {
        while remaining >= value {
            result += numeral
            remaining -= value
        }
    }
    
    return result.lowercased()
}
<|file_separator|>
 // XCTAssertTrue failed

func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i"
    ]
    
    var result = ""
    var num = number
    
    for (value, numeral) in romanNumerals {
        while num >= value {
            result += numeral
            num -= value
        }
    }
    
    return result.lowercased()
}
```swift
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// intToMiniRoman(number: 19) == "xix"
// intToMiniRoman(number: 152) == "clii"
// intToMiniRoman(number: 426) == "cdxxvi"
func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i"
    ]
    
    var result = ""
    var num = number
    
    for (value, numeral) in romanNumerals {
        while num >= value {
            result += numeral
            num -= value
        }
    }
    
    return result.lowercased()
}
<|file_separator|>
 // XCTAssertTrue failed

func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i",
    ]
    var result = ""
    var num = number
    for (value, numeral) in romanNumerals {
        while num >= value {
            result += numeral
            num -= value
        }
    }
    return result.lowercased()
}
```swift
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// intToMiniRoman(number: 19) == "xix"
// intToMiniRoman(number: 152) == "clii"
// intToMiniRoman(number: 426) == "cdxxvi"
func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i",
    ]
    var result = ""
    var num = number
    for (value, numeral) in romanNumerals {
        while num >= value {
            result += numeral
            num -= value
        }
    }
    return result.lowercased()
}
<|file_separator|>
 // XCTAssertTrue failed

func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i"
    ]
    var result = ""
    var remainingNumber = number
    for (value, numeral) in romanNumerals {
        while remainingNumber >= value {
            result += numeral
            remainingNumber -= value
        }
    }
    return result
}
```swift
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// intToMiniRoman(number: 19) == "xix"
// intToMiniRoman(number: 152) == "clii"
// intToMiniRoman(number: 426) == "cdxxvi"
func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i"
    ]
    var result = ""
    var remainingNumber = number
    for (value, numeral) in romanNumerals {
        while remainingNumber >= value {
            result += numeral
            remainingNumber -= value
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func intToMiniRoman(number: Int) -> String {
    var number = number
    var result = ""
    while number > 0 {
        if number >= 1000 {
            result += "m"
            number -= 1000
        } else if number >= 900 {
            result += "cm"
            number -= 900
        } else if number >= 500 {
            result += "d"
            number -= 500
        } else if number >= 400 {
            result += "cd"
            number -= 400
        } else if number >= 100 {
            result += "c"
            number -= 100
        } else if number >= 90 {
            result += "xc"
            number -= 90
        } else if number >= 50 {
            result += "l"
            number -= 50
        } else if number >= 40 {
            result += "xl"
            number -= 40
        } else if number >= 10 {
            result += "x"
            number -= 10
        } else if number >= 9 {
            result += "ix"
            number -= 9
        } else if number >= 5 {
            result += "v"
            number -= 5
        } else if number >= 4 {
            result += "iv"
            number -= 4
        } else if number >= 1 {
            result += "i"
            number -= 1
        }
    }
    return result
}

func intToMaxiRoman(number: Int) -> String {
    var number = number
    var result = ""
    while number > 0 {
        if number >= 1000 {
            result += "M"
            number -= 1000
        } else if number >= 900 {
            result += "CM"
            number -= 900
        } else if number >= 500 {
            result += "D"
            number -= 500
        } else if number >= 400 {
            result += "CD"
            number -= 400
        } else if number >= 100 {
            result += "C"
            number -= 100
        } else if number >= 90 {
            result += "XC"
            number -= 90
        } else if number >= 50 {
            result += "L"
            number -= 50
        } else if number >= 40 {
            result += "XL"
            number -= 40
        } else if number >= 10 {
            result += "X"
            number -= 10
        } else if number >= 9 {
            result += "IX"
            number -= 9
        } else if number >= 5 {
            result += "V"
            number -= 5
        } else if number >= 4 {
            result += "IV"
            number -= 4
        } else if number >= 1 {
            result += "I"
            number -= 1
        }
    }
    return result
}
```swift
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// intToMiniRoman(number: 19) == "xix"
// intToMiniRoman(number: 152) == "clii"
// intToMiniRoman(number: 426) == "cdxxvi"
func intToMiniRoman(number: Int) -> String {
    var number = number
    var result = ""
    while number > 0 {
        if number >= 1000 {
            result += "m"
            number -= 1000
        } else if number >= 900 {
            result += "cm"
            number -= 900
        } else if number >= 500 {
            result += "d"
            number -= 500
        } else if number >= 400 {
            result += "cd"
            number -= 400
        } else if number >= 100 {
            result += "c"
            number -= 100
        } else if number >= 90 {
            result += "xc"
            number -= 90
        } else if number >= 50 {
            result += "l"
            number -= 50
        } else if number >= 40 {
            result += "xl"
            number -= 40
        } else if number >= 10 {
            result += "x"
            number -= 10
        } else if number >= 9 {
            result += "ix"
            number -= 9
        } else if number >= 5 {
            result += "v"
            number -= 5
        } else if number >= 4 {
            result += "iv"
            number -= 4
        } else if number >= 1 {
            result += "i"
            number -= 1
        }
    }
    return result
}

// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in uppercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// intToMaxiRoman(number: 19) == "XIX"
// intToMaxiRoman(number: 152) == "CLII"
// intToMaxiRoman(number: 426) == "CDXXVI"
func intToMaxiRoman(number: Int) -> String {
    var number = number
    var result = ""
    while number > 0 {
        if number >= 1000 {
            result += "M"
            number -= 1000
        } else if number >= 900 {
            result += "CM"
            number -= 900
        } else if number >= 500 {
            result += "D"
            number -= 500
        } else if number >= 400 {
            result += "CD"
            number -= 400
        } else if number >= 100 {
            result += "C"
            number -= 100
        } else if number >= 90 {
            result += "XC"
            number -= 90
        } else if number >= 50 {
            result += "L"
            number -= 50
        } else if number >= 40 {
            result += "XL"
            number -= 40
        } else if number >= 10 {
            result += "X"
            number -= 10
        } else if number >= 9 {
            result += "IX"
            number -= 9
        } else if number >= 5 {
            result += "V"
            number -= 5
        } else if number >= 4 {
            result += "IV"
            number -= 4
        } else if number >= 1 {
            result += "I"
            number -= 1
        }
    }
    return result
}

// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 3999
// Examples:
// intToMiniRoman(number: 19) == "xix"
// intToMiniRoman(number: 152) == "clii"
// intToMiniRoman(number: 426) == "cdxxvi"
func intToMiniRoman(number: Int) -> String {
    var number = number
    var result = ""
    while number > 0 {
        if number >= 1000 {
            result += "m"
            number -= 1000
        } else if number >= 900 {
            result += "cm"
            number -= 900
        } else if number >= 

```swift
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// intToMiniRoman(number: 19) == "xix"
// intToMiniRoman(number: 152) == "clii"
// intToMiniRoman(number: 426) == "cdxxvi"
func intToMiniRoman(number: Int) -> String {
    var number = number
    var roman = ""
    var romanNumerals = ["i", "v", "x", "l", "c", "d", "m"]
    var romanNumeralsValues = [1, 5, 10, 50, 100, 500, 1000]
    var i = 0
    while number > 0 {
        var remainder = number % 10
        var quotient = number / 10
        var romanNumeral = romanNumerals[i]
        var romanNumeralValue = romanNumeralsValues[i]
        if remainder >= quotient {
            romanNumeral = romanNumerals[i + 1]
            romanNumeralValue = romanNumeralsValues[i + 1]
        }
        if remainder == 4 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 1]
            romanNumeralValue = romanNumeralsValues[i + 1]
        }
        if remainder == 9 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 2]
            romanNumeralValue = romanNumeralsValues[i + 2]
        }
        if remainder == 4 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 1]
            romanNumeralValue = romanNumeralsValues[i + 1]
        }
        if remainder == 9 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 2]
            romanNumeralValue = romanNumeralsValues[i + 2]
        }
        if remainder == 4 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 1]
            romanNumeralValue = romanNumeralsValues[i + 1]
        }
        if remainder == 9 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 2]
            romanNumeralValue = romanNumeralsValues[i + 2]
        }
        if remainder == 4 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 1]
            romanNumeralValue = romanNumeralsValues[i + 1]
        }
        if remainder == 9 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 2]
            romanNumeralValue = romanNumeralsValues[i + 2]
        }
        if remainder == 4 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 1]
            romanNumeralValue = romanNumeralsValues[i + 1]
        }
        if remainder == 9 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 2]
            romanNumeralValue = romanNumeralsValues[i + 2]
        }
        if remainder == 4 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 1]
            romanNumeralValue = romanNumeralsValues[i + 1]
        }
        if remainder == 9 {
            romanNumeral = romanNumerals[i]
            romanNumeralValue = romanNumeralsValues[i]
            romanNumeral = romanNumerals[i + 2]
            romanNumeralValue = romanNumeralsValues[i + 2]
        }
        if remainder == 4 {
            romanNumeral
XCTAssertTrue(intToMiniRoman(number: 19) == "xix") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 152) == "clii") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 251) == "ccli") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 426) == "cdxxvi") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 500) == "d") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 1) == "i") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 4) == "iv") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 43) == "xliii") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 90) == "xc") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 94) == "xciv") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 532) == "dxxxii") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 900) == "cm") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 994) == "cmxciv") // cannot find 'intToMiniRoman' in scope
XCTAssertTrue(intToMiniRoman(number: 1000) == "m") // cannot find 'intToMiniRoman' in scope

func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i"
    ]
    var result = ""
    var num = number
    for (value, numeral) in romanNumerals {
        while num >= value {
            result += numeral
            num -= value
        }
    }
    return result.lowercased()
}
```swift
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// intToMiniRoman(number: 19) == "xix"
// intToMiniRoman(number: 152) == "clii"
// intToMiniRoman(number: 426) == "cdxxvi"
func intToMiniRoman(number: Int) -> String {
    let romanNumerals = [
        1000: "m",
        900: "cm",
        500: "d",
        400: "cd",
        100: "c",
        90: "xc",
        50: "l",
        40: "xl",
        10: "x",
        9: "ix",
        5: "v",
        4: "iv",
        1: "i"
    ]
    var result = ""
    var num = number
    for (value, numeral) in romanNumerals {
        while num >= value {
            result += numeral
            num -= value
        }
    }
    return result.lowercased()
}
<|file_separator|>
 // XCTAssertTrue failed

func intToMiniRoman(number: Int) -> String {
    var result = ""
    var num = number
    var roman = ["i", "v", "x", "l", "c", "d", "m"]
    var num_roman = [1, 5, 10, 50, 100, 500, 1000]
    var i = 0
    while num > 0 {
        if num >= num_roman[i] {
            result += roman[i]
            num -= num_roman[i]
        } else {
            i += 1
        }
    }
    return result
}
```swift
// Given a positive integer, obtain its roman numeral equivalent as a string,
// and return it in lowercase.
// Restrictions: 1 <= num <= 1000
// Examples:
// intToMiniRoman(number: 19) == "xix"
// intToMiniRoman(number: 152) == "clii"
// intToMiniRoman(number: 426) == "cdxxvi"
func intToMiniRoman(number: Int) -> String {
    var result = ""
    var num = number
    var roman = ["i", "v", "x", "l", "c", "d", "m"]
    var num_roman = [1, 5, 10, 50, 100, 500, 1000]
    var i = 0
    while num > 0 {
        if num >= num_roman[i] {
            result += roman[i]
            num -= num_roman[i]
        } else {
            i += 1
        }
    }
    return result
}
<|file_separator|>
var roman = ["i", "v", "x", "l", "c", "d", "m"] // variable 'roman' was never mutated; consider changing to 'let' constant
var num_roman = [1, 5, 10, 50, 100, 500, 1000] // variable 'num_roman' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    let aSquared = a * a
    let bSquared = b * b
    let cSquared = c * c
    return aSquared + bSquared == cSquared || aSquared + cSquared == bSquared || bSquared + cSquared == aSquared
}
```swift
// Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or 
// 90 degree.
// Example:
// rightAngleTriangle(a: 3, b: 4, c: 5) == true
// rightAngleTriangle(a: 1, b: 2, c: 3) == false
func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    let aSquared = a * a
    let bSquared = b * b
    let cSquared = c * c
    return aSquared + bSquared == cSquared || aSquared + cSquared == bSquared || bSquared + cSquared == aSquared
}
<|file_separator|>```

func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    return a * a + b * b == c * c || a * a + c * c == b * b || b * b + c * c == a * a
}

func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

func sumOfArray(array: [Int]) -> Int {
    var sum = 0
    for i in array {
        sum += i
    }
    return sum
}
```swift
// Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or 
// 90 degree.
// Example:
// rightAngleTriangle(a: 3, b: 4, c: 5) == true
// rightAngleTriangle(a: 1, b: 2, c: 3) == false
func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    return a * a + b * b == c * c || a * a + c * c == b * b || b * b + c * c == a * a
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    var sum = 0
    for i in array {
        sum += i
    }
    return sum
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    return array.reduce(0, +)
}

// Given an array of integers, return the sum of the integers.
// Example:
// sumOfArray([1, 2, 3, 4, 5]) == 15
func sumOfArray(array: [Int]) -> Int {
    
func sumOfArray(array: [Int]) -> Int { // invalid redeclaration of 'sumOfArray(array:)'

func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    if a * a + b * b == c * c || b * b + c * c == a * a || c * c + a * a == b * b {
        return true
    } else {
        return false
    }
}
```swift
// Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or 
// 90 degree.
// Example:
// rightAngleTriangle(a: 3, b: 4, c: 5) == true
// rightAngleTriangle(a: 1, b: 2, c: 3) == false
func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    if a * a + b * b == c * c || b * b + c * c == a * a || c * c + a * a == b * b {
        return true
    } else {
        return false
    }
}
<|file_separator|>

func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
  return a*a + b*b == c*c || a*a + c*c == b*b || b*b + c*c == a*a
}
```swift
// Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or 
// 90 degree.
// Example:
// rightAngleTriangle(a: 3, b: 4, c: 5) == true
// rightAngleTriangle(a: 1, b: 2, c: 3) == false
func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
  return a*a + b*b == c*c || a*a + c*c == b*b || b*b + c*c == a*a
}
<|file_separator|>

func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    let aSquared = a * a
    let bSquared = b * b
    let cSquared = c * c
    
    return aSquared + bSquared == cSquared ||
           aSquared + cSquared == bSquared ||
           bSquared + cSquared == aSquared
}
```swift
// Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or 
// 90 degree.
// Example:
// rightAngleTriangle(a: 3, b: 4, c: 5) == true
// rightAngleTriangle(a: 1, b: 2, c: 3) == false
func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    let aSquared = a * a
    let bSquared = b * b
    let cSquared = c * c
    
    return aSquared + bSquared == cSquared ||
           aSquared + cSquared == bSquared ||
           bSquared + cSquared == aSquared
}
<|file_separator|>

func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    return (a*a + b*b == c*c) || (a*a + c*c == b*b) || (b*b + c*c == a*a)
}
```swift
// Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or 
// 90 degree.
// Example:
// rightAngleTriangle(a: 3, b: 4, c: 5) == true
// rightAngleTriangle(a: 1, b: 2, c: 3) == false
func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    return (a*a + b*b == c*c) || (a*a + c*c == b*b) || (b*b + c*c == a*a)
}
<|file_separator|>```

func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    if a*a + b*b == c*c || a*a + c*c == b*b || b*b + c*c == a*a {
        return true
    } else {
        return false
    }
}
```swift
// Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or 
// 90 degree.
// Example:
// rightAngleTriangle(a: 3, b: 4, c: 5) == true
// rightAngleTriangle(a: 1, b: 2, c: 3) == false
func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    if a*a + b*b == c*c || a*a + c*c == b*b || b*b + c*c == a*a {
        return true
    } else {
        return false
    }
}
<|file_separator|>

func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    if a*a + b*b == c*c || a*a + c*c == b*b || b*b + c*c == a*a {
        return true
    } else {
        return false
    }
}
```swift
// Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or 
// 90 degree.
// Example:
// rightAngleTriangle(a: 3, b: 4, c: 5) == true
// rightAngleTriangle(a: 1, b: 2, c: 3) == false
func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    if a*a + b*b == c*c || a*a + c*c == b*b || b*b + c*c == a*a {
        return true
    } else {
        return false
    }
}
<|file_separator|>

func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    if a*a + b*b == c*c || a*a + c*c == b*b || b*b + c*c == a*a {
        return true
    } else {
        return false
    }
}
```swift
// Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or 
// 90 degree.
// Example:
// rightAngleTriangle(a: 3, b: 4, c: 5) == true
// rightAngleTriangle(a: 1, b: 2, c: 3) == false
func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    if a*a + b*b == c*c || a*a + c*c == b*b || b*b + c*c == a*a {
        return true
    } else {
        return false
    }
}
<|file_separator|>

func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    if a*a + b*b == c*c || b*b + c*c == a*a || c*c + a*a == b*b {
        return true
    } else {
        return false
    }
}

func palindrome(str: String) -> Bool {
    var str = str.lowercased()
    var str2 = ""
    for i in str.characters {
        if i != " " {
            str2 += String(i)
        }
    }
    for i in 0..<str2.characters.count/2 {
        if str2[str2.startIndex.advancedBy(i)] != str2[str2.startIndex.advancedBy(str2.characters.count-i-1)] {
            return false
        }
    }
    return true
}
```swift
// Given the lengths of the three sides of a triangle. Return true if the three
// sides form a right-angled triangle, false otherwise.
// A right-angled triangle is a triangle in which one angle is right angle or 
// 90 degree.
// Example:
// rightAngleTriangle(a: 3, b: 4, c: 5) == true
// rightAngleTriangle(a: 1, b: 2, c: 3) == false
func rightAngleTriangle(a: Int, b: Int, c: Int) -> Bool {
    if a*a + b*b == c*c || b*b + c*c == a*a || c*c + a*a == b*b {
        return true
    } else {
        return false
    }
}

// Given a string, return true if the string is a palindrome, false otherwise.
// A palindrome is a word or phrase that reads the same backwards as forwards.
// Example:
// palindrome("racecar") == true
// palindrome("hello") == false
func palindrome(str: String) -> Bool {
    var str = str.lowercased()
    var str2 = ""
    for i in str.characters {
        if i != " " {
            str2 += String(i)
        }
    }
    for i in 0..<str2.characters.count/2 {
        if str2[str2.startIndex.advancedBy(i)] != str2[str2.startIndex.advancedBy(str2.characters.count-i-1)] {
            return false
        }
    }
    return true
}

// Given a string, return true if the string is a palindrome, false otherwise.
// A palindrome is a word or phrase that reads the same backwards as forwards.
// Example:
// palindrome("racecar") == true
// palindrome("hello") == false
func palindrome(str: String) -> Bool {
    var str = str.lowercased()
    var str2 = ""
    for i in str.characters {
        if i != " " {
            str2 += String(i)
        }
    }
    for i in 0..<str2.characters.count/2 {
        if str2[str2.startIndex.advancedBy(i)] != str2[str2.startIndex.advancedBy(str2.characters.count-i-1)] {
            return false
        }
    }
    return true
}

// Given a string, return true if the string is a palindrome, false otherwise.
// A palindrome is a word or phrase that reads the same backwards as forwards.
// Example:
// palindrome("racecar") == true
// palindrome("hello") == false
func palindrome(str: String) -> Bool {
    var str = str.lowercased()
    var str2 = ""
    for i in str.characters {
        if i != " " {
            str2 += String(i)
        }
    }
    for i in 0..<str2.characters.count/2 {
        if str2[str2.startIndex.advancedBy(i)] != str2[str2.startIndex.advancedBy(str2.characters.count-i-1)] {
            return false
        }
    }
    return true
}

// Given a string, return true if the string is a palindrome, false otherwise.
// A palindrome is a word or phrase that reads the same backwards as forwards.
// Example:
// palindrome("racecar") == true
// palindrome("hello") == false
func palindrome(str: String) -> Bool {
    var str = str.lowercased()
    var str2 = ""
    for i in str.characters {
        if i != " " {
            str2 += String(i)
        }
    }
    for i in 0..<str2.characters.count/2 {
        if str2[str2.startIndex.advancedBy(i)] != str2[str2.startIndex.advancedBy(str2.characters.count-i-1)] {
            return false
        }
    }
    return true
}

// Given a string, return true if the string is a palindrome, false otherwise.
// A palindrome is a word or phrase that reads the same backwards as forwards.
// Example:
// palindrome("racecar") == true
// palindrome("hello") == false
func palindrome(str: String) -> Bool {
    var str = str.lowercased()
    var str2 = ""
    for i in str.characters {
        if i != " " {
            str2 += String(i)
        }
    }
    for i in 0..<str2.characters.count/2 {
        if str2[str2.startIndex.advancedBy(i)] != str2[str2.startIndex.advancedBy(str2.characters.count-i-1)] {
            return false
        }
    }
    return true
}

// Given a string, return true if the string is a palindrome, false otherwise.
// A palindrome
for i in str.characters { // 'characters' is unavailable: Please use String directly
for i in 0..<str2.characters.count/2 { // 'characters' is unavailable: Please use String directly
if str2[str2.startIndex.advancedBy(i)] != str2[str2.startIndex.advancedBy(str2.characters.count-i-1)] { // value of type 'String.Index' has no member 'advancedBy'
if str2[str2.startIndex.advancedBy(i)] != str2[str2.startIndex.advancedBy(str2.characters.count-i-1)] { // value of type 'String.Index' has no member 'advancedBy'

func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}
```swift
// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum
// number of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum
// number of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum
// number of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum
// number of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum
// number of unique characters
if word.count(of: char) > 1 { // cannot call value of non-function type 'Int'

func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    var count = 0
    for i in 0..<words.count {
        for j in 0..<words[i].count {
            for k in 0..<words[i].count {
                if words[i][j] == words[i][k] {
                    count += 1
                }
            }
        }
        if count > maxCount {
            max = words[i]
            maxCount = count
        }
        count = 0
    }
    return max
}
```swift
// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    var count = 0
    for i in 0..<words.count {
        for j in 0..<words[i].count {
            for k in 0..<words[i].count {
                if words[i][j] == words[i][k] {
                    count += 1
                }
            }
        }
        if count > maxCount {
            max = words[i]
            maxCount = count
        }
        count = 0
    }
    return max
}
<|file_separator|>
if words[i][j] == words[i][k] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if words[i][j] == words[i][k] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    var count = 0
    for i in 0..<words.count {
        for j in 0..<words[i].count {
            for k in 0..<words[i].count {
                if words[i][j] == words[i][k] {
                    count += 1
                }
            }
        }
        if count > maxCount {
            max = words[i]
            maxCount = count
        }
        count = 0
    }
    return max
}
```swift
// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    var count = 0
    for i in 0..<words.count {
        for j in 0..<words[i].count {
            for k in 0..<words[i].count {
                if words[i][j] == words[i][k] {
                    count += 1
                }
            }
        }
        if count > maxCount {
            max = words[i]
            maxCount = count
        }
        count = 0
    }
    return max
}
<|file_separator|>
if words[i][j] == words[i][k] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if words[i][j] == words[i][k] { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}

func findMin(words: [String]) -> String {
    var min = ""
    var minCount = Int.max
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count < minCount {
            min = word
            minCount = count
        }
    }
    return min
}
```swift
// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with minimum number
// of unique characters. If multiple strings have minimum number of unique
// characters, return the one which comes first in lexicographical order.
// findMin(words: ["name", "of", "string"]) == "of"
// findMin(words: ["name", "enam", "game"]) == "enam"
// findMin(words: ["aaaaaaa", "bb", "cc"]) == "bb"
func findMin(words: [String]) -> String {
    var min = ""
    var minCount = Int.max
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count < minCount {
            min = word
            minCount = count
        }
    }
    return min
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with minimum number
// of unique characters. If multiple strings have minimum number of unique
// characters, return the one which comes first in lexicographical order.
// findMin(words: ["name", "of", "string"]) == "of"
// findMin(words: ["name", "enam", "game"]) == "enam"
// findMin(words: ["aaaaaaa", "bb", "cc"]) == "bb"
func findMin(words: [String]) -> String {
    var min = ""
    var minCount = Int.max
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count < minCount {
            min = word
            minCount = count
        }
    }
    return min
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with minimum number
// of unique characters
if word.count(of: char) > 1 { // cannot call value of non-function type 'Int'
if word.count(of: char) > 1 { // cannot call value of non-function type 'Int'

func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}
```swift
// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}
<|file_separator|>
if word.count(of: char) > 1 { // cannot call value of non-function type 'Int'

func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}
```swift
// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = ""
    var maxCount = 0
    for word in words {
        var count = 0
        for char in word {
            if word.count(of: char) > 1 {
                count += 1
            }
        }
        if count > maxCount {
            max = word
            maxCount = count
        }
    }
    return max
}
<|file_separator|>
if word.count(of: char) > 1 { // cannot call value of non-function type 'Int'

func findMax(words: [String]) -> String {
  var max = words[0]
  for i in 1..<words.count {
    if words[i].count > max.count {
      max = words[i]
    }
  }
  return max
}
```swift
// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
  var max = words[0]
  for i in 1..<words.count {
    if words[i].count > max.count {
      max = words[i]
    }
  }
  return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
  var max = words[0]
  for i in 1..<words.count {
    if words[i].count > max.count {
      max = words[i]
    }
  }
  return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
  var max = words[0]
  for i in 1..<words.count {
    if words[i].count > max.count {
      max = words[i]
    }
  }
  return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
  var max = words[0]
  for i in 1..<words.count {
    if words[i].count > max.count {
      max = words[i]
    }
  }
  return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
  var max = words[0]
  for i in 1..<words.count {
    if words[i].count > max.count {
      max = words[i]
    }
  }
  return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
  var max = words[0]
  for i in 1..<words.count {
    if words[i].count > max.count {
      max = words[i]
    }
  }
  return max
}

// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
 // XCTAssertTrue failed

func findMax(words: [String]) -> String {
    var max = 0
    var maxWord = ""
    for word in words {
        var unique = 0
        for char in word {
            if !maxWord.contains(String(char)) {
                unique += 1
            }
        }
        if unique > max {
            max = unique
            maxWord = word
        }
    }
    return maxWord
}
```swift
// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = 0
    var maxWord = ""
    for word in words {
        var unique = 0
        for char in word {
            if !maxWord.contains(String(char)) {
                unique += 1
            }
        }
        if unique > max {
            max = unique
            maxWord = word
        }
    }
    return maxWord
}
<|file_separator|>
 // XCTAssertTrue failed

func findMax(words: [String]) -> String {
  var max = ""
  for word in words {
    let set = Set(word)
    if set.count > max.count {
      max = word
    }
  }
  return max
}
```swift
// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
  var max = ""
  for word in words {
    let set = Set(word)
    if set.count > max.count {
      max = word
    }
  }
  return max
}
<|file_separator|>
 // XCTAssertTrue failed

func findMax(words: [String]) -> String {
    var max = 0
    var maxWord = ""
    for word in words {
        var unique = 0
        for char in word {
            if !maxWord.contains(char) {
                unique += 1
            }
        }
        if unique > max {
            max = unique
            maxWord = word
        }
    }
    return maxWord
}
```swift
// Write a function that accepts an array of strings.
// The array contains different words. Return the word with maximum number
// of unique characters. If multiple strings have maximum number of unique
// characters, return the one which comes first in lexicographical order.
// findMax(words: ["name", "of", "string"]) == "string"
// findMax(words: ["name", "enam", "game"]) == "enam"
// findMax(words: ["aaaaaaa", "bb", "cc"]) == "aaaaaaa"
func findMax(words: [String]) -> String {
    var max = 0
    var maxWord = ""
    for word in words {
        var unique = 0
        for char in word {
            if !maxWord.contains(char) {
                unique += 1
            }
        }
        if unique > max {
            max = unique
            maxWord = word
        }
    }
    return maxWord
}
<|file_separator|>
 // XCTAssertTrue failed

func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    var eaten = 0
    var remaining = remaining
    var need = need
    var number = number
    while eaten < need {
        if remaining > 0 {
            eaten += 1
            remaining -= 1
        } else {
            remaining = 0
            eaten += 1
        }
    }
    while eaten > need {
        eaten -= 1
        remaining += 1
    }
    return [eaten + number, remaining]
}
```swift
// You're a hungry rabbit, and you already have eaten a certain number of carrots,
// but now you need to eat more carrots to complete the day's meals.
// you should return an array of [ total number of eaten carrots after your meals,
// the number of carrots left after your meals ]
// if there are not enough remaining carrots, you will eat all remaining carrots, but will still be hungry.
// Example:
// Variables:
// @number : integer
// the number of carrots that you have eaten.
// @need : integer
// the number of carrots that you need to eat.
// @remaining : integer
// the number of remaining carrots thet exist in stock
// Constrain:
// * 0 <= number <= 1000
// * 0 <= need <= 1000
// * 0 <= remaining <= 1000
// Have fun :)
// eat(number: 5, need: 6, remaining: 10) == [11, 4]
// eat(number: 4, need: 8, remaining: 9) == [12, 1]
// eat(number: 1, need: 10, remaining: 10) == [11, 0]
// eat(number: 2, need: 11, remaining: 5) == [7, 0]
func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    var eaten = 0
    var remaining = remaining
    var need = need
    var number = number
    while eaten < need {
        if remaining > 0 {
            eaten += 1
            remaining -= 1
        } else {
            remaining = 0
            eaten += 1
        }
    }
    while eaten > need {
        eaten -= 1
        remaining += 1
    }
    return [eaten + number, remaining]
}
<|file_separator|>
var need = need // variable 'need' was never mutated; consider changing to 'let' constant
var number = number // variable 'number' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    var eaten = number
    var remaining = remaining
    var need = need
    while eaten < need {
        eaten += 1
        remaining -= 1
    }
    return [eaten, remaining]
}
```swift
// You're a hungry rabbit, and you already have eaten a certain number of carrots,
// but now you need to eat more carrots to complete the day's meals.
// you should return an array of [ total number of eaten carrots after your meals,
// the number of carrots left after your meals ]
// if there are not enough remaining carrots, you will eat all remaining carrots, but will still be hungry.
// Example:
// Variables:
// @number : integer
// the number of carrots that you have eaten.
// @need : integer
// the number of carrots that you need to eat.
// @remaining : integer
// the number of remaining carrots thet exist in stock
// Constrain:
// * 0 <= number <= 1000
// * 0 <= need <= 1000
// * 0 <= remaining <= 1000
// Have fun :)
// eat(number: 5, need: 6, remaining: 10) == [11, 4]
// eat(number: 4, need: 8, remaining: 9) == [12, 1]
// eat(number: 1, need: 10, remaining: 10) == [11, 0]
// eat(number: 2, need: 11, remaining: 5) == [7, 0]
func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    var eaten = number
    var remaining = remaining
    var need = need
    while eaten < need {
        eaten += 1
        remaining -= 1
    }
    return [eaten, remaining]
}
<|file_separator|>
var need = need // variable 'need' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    var eaten = 0
    var remaining = remaining
    var need = need
    var number = number
    while number < need {
        eaten += number
        remaining -= number
        number += 1
    }
    if remaining < need {
        eaten += remaining
        remaining = 0
    }
    return [eaten, remaining]
}
```swift
// You're a hungry rabbit, and you already have eaten a certain number of carrots,
// but now you need to eat more carrots to complete the day's meals.
// you should return an array of [ total number of eaten carrots after your meals,
// the number of carrots left after your meals ]
// if there are not enough remaining carrots, you will eat all remaining carrots, but will still be hungry.
// Example:
// Variables:
// @number : integer
// the number of carrots that you have eaten.
// @need : integer
// the number of carrots that you need to eat.
// @remaining : integer
// the number of remaining carrots thet exist in stock
// Constrain:
// * 0 <= number <= 1000
// * 0 <= need <= 1000
// * 0 <= remaining <= 1000
// Have fun :)
// eat(number: 5, need: 6, remaining: 10) == [11, 4]
// eat(number: 4, need: 8, remaining: 9) == [12, 1]
// eat(number: 1, need: 10, remaining: 10) == [11, 0]
// eat(number: 2, need: 11, remaining: 5) == [7, 0]
func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    var eaten = 0
    var remaining = remaining
    var need = need
    var number = number
    while number < need {
        eaten += number
        remaining -= number
        number += 1
    }
    if remaining < need {
        eaten += remaining
        remaining = 0
    }
    return [eaten, remaining]
}
<|file_separator|>
var need = need // variable 'need' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    let eaten = number + remaining - need
    return [eaten, remaining - eaten]
}
```swift
// You're a hungry rabbit, and you already have eaten a certain number of carrots,
// but now you need to eat more carrots to complete the day's meals.
// you should return an array of [ total number of eaten carrots after your meals,
// the number of carrots left after your meals ]
// if there are not enough remaining carrots, you will eat all remaining carrots, but will still be hungry.
// Example:
// Variables:
// @number : integer
// the number of carrots that you have eaten.
// @need : integer
// the number of carrots that you need to eat.
// @remaining : integer
// the number of remaining carrots thet exist in stock
// Constrain:
// * 0 <= number <= 1000
// * 0 <= need <= 1000
// * 0 <= remaining <= 1000
// Have fun :)
// eat(number: 5, need: 6, remaining: 10) == [11, 4]
// eat(number: 4, need: 8, remaining: 9) == [12, 1]
// eat(number: 1, need: 10, remaining: 10) == [11, 0]
// eat(number: 2, need: 11, remaining: 5) == [7, 0]
func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    let eaten = number + remaining - need
    return [eaten, remaining - eaten]
}
<|file_separator|>
 // XCTAssertTrue failed

func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    var eaten = 0
    var remaining = remaining
    var need = need
    while eaten < need {
        if remaining >= number {
            remaining -= number
            eaten += number
        } else {
            eaten += remaining
            remaining = 0
        }
    }
    return [eaten, remaining]
}
```swift
// You're a hungry rabbit, and you already have eaten a certain number of carrots,
// but now you need to eat more carrots to complete the day's meals.
// you should return an array of [ total number of eaten carrots after your meals,
// the number of carrots left after your meals ]
// if there are not enough remaining carrots, you will eat all remaining carrots, but will still be hungry.
// Example:
// Variables:
// @number : integer
// the number of carrots that you have eaten.
// @need : integer
// the number of carrots that you need to eat.
// @remaining : integer
// the number of remaining carrots thet exist in stock
// Constrain:
// * 0 <= number <= 1000
// * 0 <= need <= 1000
// * 0 <= remaining <= 1000
// Have fun :)
// eat(number: 5, need: 6, remaining: 10) == [11, 4]
// eat(number: 4, need: 8, remaining: 9) == [12, 1]
// eat(number: 1, need: 10, remaining: 10) == [11, 0]
// eat(number: 2, need: 11, remaining: 5) == [7, 0]
func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    var eaten = 0
    var remaining = remaining
    var need = need
    while eaten < need {
        if remaining >= number {
            remaining -= number
            eaten += number
        } else {
            eaten += remaining
            remaining = 0
        }
    }
    return [eaten, remaining]
}
<|file_separator|>
var need = need // variable 'need' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    var eaten = number
    var remaining = remaining
    var need = need
    var result = [Int]()
    while remaining > 0 {
        if remaining < need {
            need = remaining
        }
        eaten += need
        remaining -= need
        need = need * 2
    }
    result.append(eaten)
    result.append(remaining)
    return result
}
```swift
// You're a hungry rabbit, and you already have eaten a certain number of carrots,
// but now you need to eat more carrots to complete the day's meals.
// you should return an array of [ total number of eaten carrots after your meals,
// the number of carrots left after your meals ]
// if there are not enough remaining carrots, you will eat all remaining carrots, but will still be hungry.
// Example:
// Variables:
// @number : integer
// the number of carrots that you have eaten.
// @need : integer
// the number of carrots that you need to eat.
// @remaining : integer
// the number of remaining carrots thet exist in stock
// Constrain:
// * 0 <= number <= 1000
// * 0 <= need <= 1000
// * 0 <= remaining <= 1000
// Have fun :)
// eat(number: 5, need: 6, remaining: 10) == [11, 4]
// eat(number: 4, need: 8, remaining: 9) == [12, 1]
// eat(number: 1, need: 10, remaining: 10) == [11, 0]
// eat(number: 2, need: 11, remaining: 5) == [7, 0]
func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    var eaten = number
    var remaining = remaining
    var need = need
    var result = [Int]()
    while remaining > 0 {
        if remaining < need {
            need = remaining
        }
        eaten += need
        remaining -= need
        need = need * 2
    }
    result.append(eaten)
    result.append(remaining)
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    var eaten = number
    var remaining = remaining
    var need = need
    var result = [Int]()
    while eaten < need {
        eaten += 1
        remaining -= 1
        if remaining == 0 {
            remaining = 10
        }
    }
    result.append(eaten)
    result.append(remaining)
    return result
}
```swift
// You're a hungry rabbit, and you already have eaten a certain number of carrots,
// but now you need to eat more carrots to complete the day's meals.
// you should return an array of [ total number of eaten carrots after your meals,
// the number of carrots left after your meals ]
// if there are not enough remaining carrots, you will eat all remaining carrots, but will still be hungry.
// Example:
// Variables:
// @number : integer
// the number of carrots that you have eaten.
// @need : integer
// the number of carrots that you need to eat.
// @remaining : integer
// the number of remaining carrots thet exist in stock
// Constrain:
// * 0 <= number <= 1000
// * 0 <= need <= 1000
// * 0 <= remaining <= 1000
// Have fun :)
// eat(number: 5, need: 6, remaining: 10) == [11, 4]
// eat(number: 4, need: 8, remaining: 9) == [12, 1]
// eat(number: 1, need: 10, remaining: 10) == [11, 0]
// eat(number: 2, need: 11, remaining: 5) == [7, 0]
func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    var eaten = number
    var remaining = remaining
    var need = need
    var result = [Int]()
    while eaten < need {
        eaten += 1
        remaining -= 1
        if remaining == 0 {
            remaining = 10
        }
    }
    result.append(eaten)
    result.append(remaining)
    return result
}
<|file_separator|>
var need = need // variable 'need' was never mutated; consider changing to 'let' constant
 // XCTAssertTrue failed

func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    var eaten = number
    var remaining = remaining
    var need = need
    var result = [Int]()
    while eaten < need {
        eaten += 1
        remaining -= 1
        need -= 1
    }
    result.append(eaten)
    result.append(remaining)
    return result
}
```swift
// You're a hungry rabbit, and you already have eaten a certain number of carrots,
// but now you need to eat more carrots to complete the day's meals.
// you should return an array of [ total number of eaten carrots after your meals,
// the number of carrots left after your meals ]
// if there are not enough remaining carrots, you will eat all remaining carrots, but will still be hungry.
// Example:
// Variables:
// @number : integer
// the number of carrots that you have eaten.
// @need : integer
// the number of carrots that you need to eat.
// @remaining : integer
// the number of remaining carrots thet exist in stock
// Constrain:
// * 0 <= number <= 1000
// * 0 <= need <= 1000
// * 0 <= remaining <= 1000
// Have fun :)
// eat(number: 5, need: 6, remaining: 10) == [11, 4]
// eat(number: 4, need: 8, remaining: 9) == [12, 1]
// eat(number: 1, need: 10, remaining: 10) == [11, 0]
// eat(number: 2, need: 11, remaining: 5) == [7, 0]
func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    var eaten = number
    var remaining = remaining
    var need = need
    var result = [Int]()
    while eaten < need {
        eaten += 1
        remaining -= 1
        need -= 1
    }
    result.append(eaten)
    result.append(remaining)
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    var eaten = number
    var remaining = remaining
    var need = need
    while need > 0 {
        if eaten >= need {
            eaten -= need
            need = 0
        } else {
            need -= eaten
            eaten = 0
        }
    }
    return [eaten + remaining, need]
}
```swift
// You're a hungry rabbit, and you already have eaten a certain number of carrots,
// but now you need to eat more carrots to complete the day's meals.
// you should return an array of [ total number of eaten carrots after your meals,
// the number of carrots left after your meals ]
// if there are not enough remaining carrots, you will eat all remaining carrots, but will still be hungry.
// Example:
// Variables:
// @number : integer
// the number of carrots that you have eaten.
// @need : integer
// the number of carrots that you need to eat.
// @remaining : integer
// the number of remaining carrots thet exist in stock
// Constrain:
// * 0 <= number <= 1000
// * 0 <= need <= 1000
// * 0 <= remaining <= 1000
// Have fun :)
// eat(number: 5, need: 6, remaining: 10) == [11, 4]
// eat(number: 4, need: 8, remaining: 9) == [12, 1]
// eat(number: 1, need: 10, remaining: 10) == [11, 0]
// eat(number: 2, need: 11, remaining: 5) == [7, 0]
func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    var eaten = number
    var remaining = remaining
    var need = need
    while need > 0 {
        if eaten >= need {
            eaten -= need
            need = 0
        } else {
            need -= eaten
            eaten = 0
        }
    }
    return [eaten + remaining, need]
}
<|file_separator|>
var remaining = remaining // variable 'remaining' was never mutated; consider changing to 'let' constant

func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    var eaten = number
    var remaining = remaining
    var need = need
    var result = [Int]()
    while remaining > 0 {
        if remaining >= need {
            eaten += need
            remaining -= need
            need = 0
        } else {
            eaten += remaining
            need -= remaining
            remaining = 0
        }
    }
    result.append(eaten)
    result.append(need)
    return result
}
```swift
// You're a hungry rabbit, and you already have eaten a certain number of carrots,
// but now you need to eat more carrots to complete the day's meals.
// you should return an array of [ total number of eaten carrots after your meals,
// the number of carrots left after your meals ]
// if there are not enough remaining carrots, you will eat all remaining carrots, but will still be hungry.
// Example:
// Variables:
// @number : integer
// the number of carrots that you have eaten.
// @need : integer
// the number of carrots that you need to eat.
// @remaining : integer
// the number of remaining carrots thet exist in stock
// Constrain:
// * 0 <= number <= 1000
// * 0 <= need <= 1000
// * 0 <= remaining <= 1000
// Have fun :)
// eat(number: 5, need: 6, remaining: 10) == [11, 4]
// eat(number: 4, need: 8, remaining: 9) == [12, 1]
// eat(number: 1, need: 10, remaining: 10) == [11, 0]
// eat(number: 2, need: 11, remaining: 5) == [7, 0]
func eat(number: Int, need: Int, remaining: Int) -> [Int] {
    // your code here
    var eaten = number
    var remaining = remaining
    var need = need
    var result = [Int]()
    while remaining > 0 {
        if remaining >= need {
            eaten += need
            remaining -= need
            need = 0
        } else {
            eaten += remaining
            need -= remaining
            remaining = 0
        }
    }
    result.append(eaten)
    result.append(need)
    return result
}
<|file_separator|>

func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 1..<operands.count {
        switch operators[i - 1] {
        case "+":
            result += operands[i]
        case "-":
            result -= operands[i]
        case "*":
            result *= operands[i]
        case "//":
            result /= operands[i]
        case "**":
            result = Int(pow(Double(result), Double(operands[i])))
        default:
            break
        }
    }
    return result
}
```swift
// Given two arrays operators, and operands. The first array has basic algebra operations, and 
// the second array is an array of integers. Use the two given arrays to build the algebric 
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + ) 
// Subtraction ( - ) 
// Multiplication ( * ) 
// Floor division ( // ) 
// Exponentiation ( ** ) 
// Example:
// operator['+', '*', '-']
// array = [2, 3, 4, 5]
// result = 2 + 3 * 4 - 5
// => result = 9
// Note:
// The length of operator array is equal to the length of operand array minus one.
// Operand is an array of of non-negative integers.
// Operator array has at least one operator, and operand array has at least two operands.
func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 1..<operands.count {
        switch operators[i - 1] {
        case "+":
            result += operands[i]
        case "-":
            result -= operands[i]
        case "*":
            result *= operands[i]
        case "//":
            result /= operands[i]
        case "**":
            result = Int(pow(Double(result), Double(operands[i])))
        default:
            break
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i + 1]
        case "-":
            result -= operands[i + 1]
        case "*":
            result *= operands[i + 1]
        case "//":
            result /= operands[i + 1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i + 1])))
        default:
            break
        }
    }
    return result
}
```swift
// Given two arrays operators, and operands. The first array has basic algebra operations, and 
// the second array is an array of integers. Use the two given arrays to build the algebric 
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + ) 
// Subtraction ( - ) 
// Multiplication ( * ) 
// Floor division ( // ) 
// Exponentiation ( ** ) 
// Example:
// operator['+', '*', '-']
// array = [2, 3, 4, 5]
// result = 2 + 3 * 4 - 5
// => result = 9
// Note:
// The length of operator array is equal to the length of operand array minus one.
// Operand is an array of of non-negative integers.
// Operator array has at least one operator, and operand array has at least two operands.
func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i + 1]
        case "-":
            result -= operands[i + 1]
        case "*":
            result *= operands[i + 1]
        case "//":
            result /= operands[i + 1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i + 1])))
        default:
            break
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 1..<operands.count {
        let operator = operators[i - 1]
        switch operator {
        case "+":
            result += operands[i]
        case "-":
            result -= operands[i]
        case "*":
            result *= operands[i]
        case "//":
            result /= operands[i]
        case "**":
            result = Int(pow(Double(result), Double(operands[i])))
        default:
            break
        }
    }
    return result
}
```swift
// Given two arrays operators, and operands. The first array has basic algebra operations, and 
// the second array is an array of integers. Use the two given arrays to build the algebric 
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + ) 
// Subtraction ( - ) 
// Multiplication ( * ) 
// Floor division ( // ) 
// Exponentiation ( ** ) 
// Example:
// operator['+', '*', '-']
// array = [2, 3, 4, 5]
// result = 2 + 3 * 4 - 5
// => result = 9
// Note:
// The length of operator array is equal to the length of operand array minus one.
// Operand is an array of of non-negative integers.
// Operator array has at least one operator, and operand array has at least two operands.
func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 1..<operands.count {
        let operator = operators[i - 1]
        switch operator {
        case "+":
            result += operands[i]
        case "-":
            result -= operands[i]
        case "*":
            result *= operands[i]
        case "//":
            result /= operands[i]
        case "**":
            result = Int(pow(Double(result), Double(operands[i])))
        default:
            break
        }
    }
    return result
}
<|file_separator|>
let operator = operators[i - 1] // keyword 'operator' cannot be used as an identifier here
switch operator { // expected operator name in operator declaration
switch operator { // expected expression in 'switch' statement

func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i + 1]
        case "-":
            result -= operands[i + 1]
        case "*":
            result *= operands[i + 1]
        case "//":
            result /= operands[i + 1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i + 1])))
        default:
            break
        }
    }
    return result
}
```swift
// Given two arrays operators, and operands. The first array has basic algebra operations, and 
// the second array is an array of integers. Use the two given arrays to build the algebric 
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + ) 
// Subtraction ( - ) 
// Multiplication ( * ) 
// Floor division ( // ) 
// Exponentiation ( ** ) 
// Example:
// operator['+', '*', '-']
// array = [2, 3, 4, 5]
// result = 2 + 3 * 4 - 5
// => result = 9
// Note:
// The length of operator array is equal to the length of operand array minus one.
// Operand is an array of of non-negative integers.
// Operator array has at least one operator, and operand array has at least two operands.
func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i + 1]
        case "-":
            result -= operands[i + 1]
        case "*":
            result *= operands[i + 1]
        case "//":
            result /= operands[i + 1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i + 1])))
        default:
            break
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 1..<operands.count {
        switch operators[i - 1] {
        case "+":
            result += operands[i]
        case "-":
            result -= operands[i]
        case "*":
            result *= operands[i]
        case "//":
            result /= operands[i]
        case "**":
            result = Int(pow(Double(result), Double(operands[i])))
        default:
            break
        }
    }
    return result
}
```swift
// Given two arrays operators, and operands. The first array has basic algebra operations, and 
// the second array is an array of integers. Use the two given arrays to build the algebric 
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + ) 
// Subtraction ( - ) 
// Multiplication ( * ) 
// Floor division ( // ) 
// Exponentiation ( ** ) 
// Example:
// operator['+', '*', '-']
// array = [2, 3, 4, 5]
// result = 2 + 3 * 4 - 5
// => result = 9
// Note:
// The length of operator array is equal to the length of operand array minus one.
// Operand is an array of of non-negative integers.
// Operator array has at least one operator, and operand array has at least two operands.
func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 1..<operands.count {
        switch operators[i - 1] {
        case "+":
            result += operands[i]
        case "-":
            result -= operands[i]
        case "*":
            result *= operands[i]
        case "//":
            result /= operands[i]
        case "**":
            result = Int(pow(Double(result), Double(operands[i])))
        default:
            break
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i+1]
        case "-":
            result -= operands[i+1]
        case "*":
            result *= operands[i+1]
        case "//":
            result /= operands[i+1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i+1])))
        default:
            break
        }
    }
    return result
}
```swift
// Given two arrays operators, and operands. The first array has basic algebra operations, and 
// the second array is an array of integers. Use the two given arrays to build the algebric 
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + ) 
// Subtraction ( - ) 
// Multiplication ( * ) 
// Floor division ( // ) 
// Exponentiation ( ** ) 
// Example:
// operator['+', '*', '-']
// array = [2, 3, 4, 5]
// result = 2 + 3 * 4 - 5
// => result = 9
// Note:
// The length of operator array is equal to the length of operand array minus one.
// Operand is an array of of non-negative integers.
// Operator array has at least one operator, and operand array has at least two operands.
func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i+1]
        case "-":
            result -= operands[i+1]
        case "*":
            result *= operands[i+1]
        case "//":
            result /= operands[i+1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i+1])))
        default:
            break
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 1..<operands.count {
        switch operators[i - 1] {
        case "+":
            result += operands[i]
        case "-":
            result -= operands[i]
        case "*":
            result *= operands[i]
        case "//":
            result /= operands[i]
        case "**":
            result = Int(pow(Double(result), Double(operands[i])))
        default:
            break
        }
    }
    return result
}
```swift
// Given two arrays operators, and operands. The first array has basic algebra operations, and 
// the second array is an array of integers. Use the two given arrays to build the algebric 
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + ) 
// Subtraction ( - ) 
// Multiplication ( * ) 
// Floor division ( // ) 
// Exponentiation ( ** ) 
// Example:
// operator['+', '*', '-']
// array = [2, 3, 4, 5]
// result = 2 + 3 * 4 - 5
// => result = 9
// Note:
// The length of operator array is equal to the length of operand array minus one.
// Operand is an array of of non-negative integers.
// Operator array has at least one operator, and operand array has at least two operands.
func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 1..<operands.count {
        switch operators[i - 1] {
        case "+":
            result += operands[i]
        case "-":
            result -= operands[i]
        case "*":
            result *= operands[i]
        case "//":
            result /= operands[i]
        case "**":
            result = Int(pow(Double(result), Double(operands[i])))
        default:
            break
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i + 1]
        case "-":
            result -= operands[i + 1]
        case "*":
            result *= operands[i + 1]
        case "//":
            result /= operands[i + 1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i + 1])))
        default:
            break
        }
    }
    return result
}
```swift
// Given two arrays operators, and operands. The first array has basic algebra operations, and 
// the second array is an array of integers. Use the two given arrays to build the algebric 
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + ) 
// Subtraction ( - ) 
// Multiplication ( * ) 
// Floor division ( // ) 
// Exponentiation ( ** ) 
// Example:
// operator['+', '*', '-']
// array = [2, 3, 4, 5]
// result = 2 + 3 * 4 - 5
// => result = 9
// Note:
// The length of operator array is equal to the length of operand array minus one.
// Operand is an array of of non-negative integers.
// Operator array has at least one operator, and operand array has at least two operands.
func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i + 1]
        case "-":
            result -= operands[i + 1]
        case "*":
            result *= operands[i + 1]
        case "//":
            result /= operands[i + 1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i + 1])))
        default:
            break
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i + 1]
        case "-":
            result -= operands[i + 1]
        case "*":
            result *= operands[i + 1]
        case "//":
            result /= operands[i + 1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i + 1])))
        default:
            break
        }
    }
    return result
}
```swift
// Given two arrays operators, and operands. The first array has basic algebra operations, and 
// the second array is an array of integers. Use the two given arrays to build the algebric 
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + ) 
// Subtraction ( - ) 
// Multiplication ( * ) 
// Floor division ( // ) 
// Exponentiation ( ** ) 
// Example:
// operator['+', '*', '-']
// array = [2, 3, 4, 5]
// result = 2 + 3 * 4 - 5
// => result = 9
// Note:
// The length of operator array is equal to the length of operand array minus one.
// Operand is an array of of non-negative integers.
// Operator array has at least one operator, and operand array has at least two operands.
func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i + 1]
        case "-":
            result -= operands[i + 1]
        case "*":
            result *= operands[i + 1]
        case "//":
            result /= operands[i + 1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i + 1])))
        default:
            break
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i+1]
        case "-":
            result -= operands[i+1]
        case "*":
            result *= operands[i+1]
        case "//":
            result /= operands[i+1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i+1])))
        default:
            break
        }
    }
    return result
}
```swift
// Given two arrays operators, and operands. The first array has basic algebra operations, and 
// the second array is an array of integers. Use the two given arrays to build the algebric 
// expression and return the evaluation of this expression.
// The basic algebra operations:
// Addition ( + ) 
// Subtraction ( - ) 
// Multiplication ( * ) 
// Floor division ( // ) 
// Exponentiation ( ** ) 
// Example:
// operator['+', '*', '-']
// array = [2, 3, 4, 5]
// result = 2 + 3 * 4 - 5
// => result = 9
// Note:
// The length of operator array is equal to the length of operand array minus one.
// Operand is an array of of non-negative integers.
// Operator array has at least one operator, and operand array has at least two operands.
func doAlgebra(operators: [String], operands: [Int]) -> Int {
    var result = operands[0]
    for i in 0..<operators.count {
        switch operators[i] {
        case "+":
            result += operands[i+1]
        case "-":
            result -= operands[i+1]
        case "*":
            result *= operands[i+1]
        case "//":
            result /= operands[i+1]
        case "**":
            result = Int(pow(Double(result), Double(operands[i+1])))
        default:
            break
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func solve(s: String) -> String {
    var result = ""
    for c in s {
        if c.isLetter() {
            if c.isUppercase() {
                result += c.lowercased()
            } else {
                result += c.uppercased()
            }
        } else {
            result += String(c)
        }
    }
    return result
}
```swift
// You are given a string s.
// if s[i] is a letter, reverse its case from lower to upper or vise versa, 
// otherwise keep it as it is.
// If the string contains no letters, reverse the string.
// The function should return the resulted string.
// Examples
// solve(s: "1234") == "4321"
// solve(s: "ab") == "AB"
// solve(s: "#a@C") == "#A@c"
func solve(s: String) -> String {
    var result = ""
    for c in s {
        if c.isLetter() {
            if c.isUppercase() {
                result += c.lowercased()
            } else {
                result += c.uppercased()
            }
        } else {
            result += String(c)
        }
    }
    return result
}<|file_separator|>
if c.isLetter() { // cannot call value of non-function type 'Bool'
if c.isUppercase() { // cannot call value of non-function type 'Bool'

func solve(s: String) -> String {
    var result = ""
    for i in s {
        if i.isLetter() {
            if i.isUppercase() {
                result += i.lowercased()
            } else {
                result += i.uppercased()
            }
        } else {
            result += String(i)
        }
    }
    return result
}
```swift
// You are given a string s.
// if s[i] is a letter, reverse its case from lower to upper or vise versa, 
// otherwise keep it as it is.
// If the string contains no letters, reverse the string.
// The function should return the resulted string.
// Examples
// solve(s: "1234") == "4321"
// solve(s: "ab") == "AB"
// solve(s: "#a@C") == "#A@c"
func solve(s: String) -> String {
    var result = ""
    for i in s {
        if i.isLetter() {
            if i.isUppercase() {
                result += i.lowercased()
            } else {
                result += i.uppercased()
            }
        } else {
            result += String(i)
        }
    }
    return result
}
<|file_separator|>
if i.isLetter() { // cannot call value of non-function type 'Bool'
if i.isUppercase() { // cannot call value of non-function type 'Bool'

func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += String(s[i].lowercased())
            } else {
                result += String(s[i].uppercased())
            }
        } else {
            result += String(s[i])
        }
    }
    return result
}
```swift
// You are given a string s.
// if s[i] is a letter, reverse its case from lower to upper or vise versa, 
// otherwise keep it as it is.
// If the string contains no letters, reverse the string.
// The function should return the resulted string.
// Examples
// solve(s: "1234") == "4321"
// solve(s: "ab") == "AB"
// solve(s: "#a@C") == "#A@c"
func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += String(s[i].lowercased())
            } else {
                result += String(s[i].uppercased())
            }
        } else {
            result += String(s[i])
        }
    }
    return result
}
<|file_separator|>
if s[i].isLetter { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i].lowercased()) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i].uppercased()) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i]) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isLowercase {
                result += s[i].uppercased()
            } else {
                result += s[i].lowercased()
            }
        } else {
            result += s[i]
        }
    }
    return result
}
```swift
// You are given a string s.
// if s[i] is a letter, reverse its case from lower to upper or vise versa, 
// otherwise keep it as it is.
// If the string contains no letters, reverse the string.
// The function should return the resulted string.
// Examples
// solve(s: "1234") == "4321"
// solve(s: "ab") == "AB"
// solve(s: "#a@C") == "#A@c"
func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isLowercase {
                result += s[i].uppercased()
            } else {
                result += s[i].lowercased()
            }
        } else {
            result += s[i]
        }
    }
    return result
}
<|file_separator|>```
if s[i].isLetter { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i].isLowercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += s[i].uppercased() // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += s[i].lowercased() // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += s[i] // no exact matches in call to subscript

func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += s[i].lowercased()
            } else {
                result += s[i].uppercased()
            }
        } else {
            result += s[i]
        }
    }
    return result
}
```swift
// You are given a string s.
// if s[i] is a letter, reverse its case from lower to upper or vise versa, 
// otherwise keep it as it is.
// If the string contains no letters, reverse the string.
// The function should return the resulted string.
// Examples
// solve(s: "1234") == "4321"
// solve(s: "ab") == "AB"
// solve(s: "#a@C") == "#A@c"
func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += s[i].lowercased()
            } else {
                result += s[i].uppercased()
            }
        } else {
            result += s[i]
        }
    }
    return result
}
<|file_separator|>```
if s[i].isLetter { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += s[i].lowercased() // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += s[i].uppercased() // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += s[i] // no exact matches in call to subscript

func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += String(s[i].lowercased())
            } else {
                result += String(s[i].uppercased())
            }
        } else {
            result += String(s[i])
        }
    }
    return result
}
```swift
// You are given a string s.
// if s[i] is a letter, reverse its case from lower to upper or vise versa, 
// otherwise keep it as it is.
// If the string contains no letters, reverse the string.
// The function should return the resulted string.
// Examples
// solve(s: "1234") == "4321"
// solve(s: "ab") == "AB"
// solve(s: "#a@C") == "#A@c"
func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += String(s[i].lowercased())
            } else {
                result += String(s[i].uppercased())
            }
        } else {
            result += String(s[i])
        }
    }
    return result
}
<|file_separator|>
if s[i].isLetter { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i].lowercased()) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i].uppercased()) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i]) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += String(s[i].lowercased())
            } else {
                result += String(s[i].uppercased())
            }
        } else {
            result += String(s[i])
        }
    }
    return result
}
```swift
// You are given a string s.
// if s[i] is a letter, reverse its case from lower to upper or vise versa, 
// otherwise keep it as it is.
// If the string contains no letters, reverse the string.
// The function should return the resulted string.
// Examples
// solve(s: "1234") == "4321"
// solve(s: "ab") == "AB"
// solve(s: "#a@C") == "#A@c"
func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += String(s[i].lowercased())
            } else {
                result += String(s[i].uppercased())
            }
        } else {
            result += String(s[i])
        }
    }
    return result
}
<|file_separator|>
if s[i].isLetter { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i].lowercased()) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i].uppercased()) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i]) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += String(s[i].lowercased())
            } else {
                result += String(s[i].uppercased())
            }
        } else {
            result += String(s[i])
        }
    }
    return result
}
```swift
// You are given a string s.
// if s[i] is a letter, reverse its case from lower to upper or vise versa, 
// otherwise keep it as it is.
// If the string contains no letters, reverse the string.
// The function should return the resulted string.
// Examples
// solve(s: "1234") == "4321"
// solve(s: "ab") == "AB"
// solve(s: "#a@C") == "#A@c"
func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += String(s[i].lowercased())
            } else {
                result += String(s[i].uppercased())
            }
        } else {
            result += String(s[i])
        }
    }
    return result
}
<|file_separator|>
if s[i].isLetter { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i].lowercased()) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i].uppercased()) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i]) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[s.index(s.startIndex, offsetBy: i)] >= "a" && s[s.index(s.startIndex, offsetBy: i)] <= "z" {
            result += String(s[s.index(s.startIndex, offsetBy: i)].uppercased())
        } else if s[s.index(s.startIndex, offsetBy: i)] >= "A" && s[s.index(s.startIndex, offsetBy: i)] <= "Z" {
            result += String(s[s.index(s.startIndex, offsetBy: i)].lowercased())
        } else {
            result += String(s[s.index(s.startIndex, offsetBy: i)])
        }
    }
    return result
}
```swift
// You are given a string s.
// if s[i] is a letter, reverse its case from lower to upper or vise versa, 
// otherwise keep it as it is.
// If the string contains no letters, reverse the string.
// The function should return the resulted string.
// Examples
// solve(s: "1234") == "4321"
// solve(s: "ab") == "AB"
// solve(s: "#a@C") == "#A@c"
func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[s.index(s.startIndex, offsetBy: i)] >= "a" && s[s.index(s.startIndex, offsetBy: i)] <= "z" {
            result += String(s[s.index(s.startIndex, offsetBy: i)].uppercased())
        } else if s[s.index(s.startIndex, offsetBy: i)] >= "A" && s[s.index(s.startIndex, offsetBy: i)] <= "Z" {
            result += String(s[s.index(s.startIndex, offsetBy: i)].lowercased())
        } else {
            result += String(s[s.index(s.startIndex, offsetBy: i)])
        }
    }
    return result
}
<|file_separator|>
 // XCTAssertTrue failed

func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += String(s[i].lowercased())
            } else {
                result += String(s[i].uppercased())
            }
        } else {
            result += String(s[i])
        }
    }
    return result
}
```swift
// You are given a string s.
// if s[i] is a letter, reverse its case from lower to upper or vise versa, 
// otherwise keep it as it is.
// If the string contains no letters, reverse the string.
// The function should return the resulted string.
// Examples
// solve(s: "1234") == "4321"
// solve(s: "ab") == "AB"
// solve(s: "#a@C") == "#A@c"
func solve(s: String) -> String {
    var result = ""
    for i in 0..<s.count {
        if s[i].isLetter {
            if s[i].isUppercase {
                result += String(s[i].lowercased())
            } else {
                result += String(s[i].uppercased())
            }
        } else {
            result += String(s[i])
        }
    }
    return result
}
<|file_separator|>
if s[i].isLetter { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
if s[i].isUppercase { // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i].lowercased()) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i].uppercased()) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.
result += String(s[i]) // 'subscript(_:)' is unavailable: cannot subscript String with an Int, use a String.Index instead.

import CommonCrypto

func stringToMd5(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let hash = data.md5()
    
    return hash.map { String(format: "%02hhx", $0) }.joined()
}
```swift
// Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToMd5(text: "Hello world") == "3e25960a79dbc69b674cd4ec67a72c62"
func stringToMd5(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let hash = data.md5()
    
    return hash.map { String(format: "%02hhx", $0) }.joined()
}
<|file_separator|>
let hash = data.md5() // value of type 'Data' has no member 'md5'

import CommonCrypto

func stringToMd5(text: String) -> String? {
    guard !text.isEmpty else { return nil }
    return text.md5()
}

func stringToSha1(text: String) -> String? {
    guard !text.isEmpty else { return nil }
    return text.sha1()
}

func stringToSha256(text: String) -> String? {
    guard !text.isEmpty else { return nil }
    return text.sha256()
}

func stringToSha512(text: String) -> String? {
    guard !text.isEmpty else { return nil }
    return text.sha512()
}
```swift
// Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToMd5(text: "Hello world") == "3e25960a79dbc69b674cd4ec67a72c62"
func stringToMd5(text: String) -> String? {
    guard !text.isEmpty else { return nil }
    return text.md5()
}

// Given a string 'text', return its sha1 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToSha1(text: "Hello world") == "aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d"
func stringToSha1(text: String) -> String? {
    guard !text.isEmpty else { return nil }
    return text.sha1()
}

// Given a string 'text', return its sha256 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToSha256(text: "Hello world") == "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"
func stringToSha256(text: String) -> String? {
    guard !text.isEmpty else { return nil }
    return text.sha256()
}

// Given a string 'text', return its sha512 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToSha512(text: "Hello world") == "d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592a8fadf031c6d463f9a35c8c1db085127a2e07408eae2h4b2b41b83e415ff59606"
func stringToSha512(text: String) -> String? {
    guard !text.isEmpty else { return nil }
    return text.sha512()
}
<|file_separator|>
return text.md5() // value of type 'String' has no member 'md5'
return text.sha1() // value of type 'String' has no member 'sha1'
return text.sha256() // value of type 'String' has no member 'sha256'
return text.sha512() // value of type 'String' has no member 'sha512'

import CommonCrypto

func stringToMd5(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)!
    let hash = data.md5()
    return hash.map { String(format: "%02hhx", $0) }.joined()
}
```swift
// Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToMd5(text: "Hello world") == "3e25960a79dbc69b674cd4ec67a72c62"
func stringToMd5(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)!
    let hash = data.md5()
    return hash.map { String(format: "%02hhx", $0) }.joined()
}

// Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToMd5(text: "Hello world") == "3e25960a79dbc69b674cd4ec67a72c62"
func stringToMd5(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)!
    let hash = data.md5()
    return hash.map { String(format: "%02hhx", $0) }.joined()
}
<|file_separator|>
let hash = data.md5() // value of type 'Data' has no member 'md5'

import CommonCrypto

func stringToMd5(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)
    guard let hash = data?.md5() else {
        return nil
    }
    return hash.map { String(format: "%02hhx", $0) }.joined()
}

func stringToSha1(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)
    guard let hash = data?.sha1() else {
        return nil
    }
    return hash.map { String(format: "%02hhx", $0) }.joined()
}

func stringToSha256(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)
    guard let hash = data?.sha256() else {
        return nil
    }
    return hash.map { String(format: "%02hhx", $0) }.joined()
}

func stringToSha512(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)
    guard let hash = data?.sha512() else {
        return nil
    }
    return hash.map { String(format: "%02hhx", $0) }.joined()
}
```swift
// Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToMd5(text: "Hello world") == "3e25960a79dbc69b674cd4ec67a72c62"
func stringToMd5(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)
    guard let hash = data?.md5() else {
        return nil
    }
    return hash.map { String(format: "%02hhx", $0) }.joined()
}

// Given a string 'text', return its sha1 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToSha1(text: "Hello world") == "aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d"
func stringToSha1(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)
    guard let hash = data?.sha1() else {
        return nil
    }
    return hash.map { String(format: "%02hhx", $0) }.joined()
}

// Given a string 'text', return its sha256 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToSha256(text: "Hello world") == "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"
func stringToSha256(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)
    guard let hash = data?.sha256() else {
        return nil
    }
    return hash.map { String(format: "%02hhx", $0) }.joined()
}

// Given a string 'text', return its sha512 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToSha512(text: "Hello world") == "d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592a8fadf76e6387943cb00a43e59b4a79ef2c59c89b396f0ae3c50994bf1d36f9b"
func stringToSha512(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)
    guard let hash = data?.sha512() else {
        return nil
    }
    return hash.map { String(format: "%02hhx", $0) }.joined()
}
<|file_separator|>
guard let hash = data?.md5() else { // value of type 'Data' has no member 'md5'
guard let hash = data?.sha1() else { // value of type 'Data' has no member 'sha1'
guard let hash = data?.sha256() else { // value of type 'Data' has no member 'sha256'
guard let hash = data?.sha512() else { // value of type 'Data' has no member 'sha512'

import CommonCrypto

func stringToMd5(text: String) -> String? {
    guard !text.isEmpty else { return nil }
    let data = text.data(using: .utf8)!
    var digest = [UInt8](repeating: 0, count: Int(CC_MD5_DIGEST_LENGTH))
    CC_MD5(data.bytes, CC_LONG(data.count), &digest)
    let result = NSMutableString()
    for byte in digest {
        result.appendFormat("%02x", byte)
    }
    return result as String
}
```swift
// Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToMd5(text: "Hello world") == "3e25960a79dbc69b674cd4ec67a72c62"
func stringToMd5(text: String) -> String? {
    guard !text.isEmpty else { return nil }
    let data = text.data(using: .utf8)!
    var digest = [UInt8](repeating: 0, count: Int(CC_MD5_DIGEST_LENGTH))
    CC_MD5(data.bytes, CC_LONG(data.count), &digest)
    let result = NSMutableString()
    for byte in digest {
        result.appendFormat("%02x", byte)
    }
    return result as String
}
<|file_separator|>
CC_MD5(data.bytes, CC_LONG(data.count), &digest) // value of type 'Data' has no member 'bytes'

import CommonCrypto

func stringToMd5(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    
    var hash = [UInt8](repeating: 0, count: Int(CC_MD5_DIGEST_LENGTH))
    CC_MD5(data.bytes, CC_LONG(data.count), &hash)
    
    let result = hash.map { String(format: "%02x", $0) }.joined()
    return result
}
```swift
// Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToMd5(text: "Hello world") == "3e25960a79dbc69b674cd4ec67a72c62"
func stringToMd5(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    
    var hash = [UInt8](repeating: 0, count: Int(CC_MD5_DIGEST_LENGTH))
    CC_MD5(data.bytes, CC_LONG(data.count), &hash)
    
    let result = hash.map { String(format: "%02x", $0) }.joined()
    return result
}
<|file_separator|>
CC_MD5(data.bytes, CC_LONG(data.count), &hash) // value of type 'Data' has no member 'bytes'

import CommonCrypto

func stringToMd5(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let hash = data.withUnsafeBytes { (bytes: UnsafeRawBufferPointer) -> String in
        let hash = CC_MD5(bytes.baseAddress, CC_LONG(data.count), nil)
        return String(format: "%02x%02x%02x%02x", hash[0], hash[1], hash[2], hash[3])
    }
    
    return hash
}

func base64(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let base64 = data.base64EncodedString()
    
    return base64
}
```swift
// Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToMd5(text: "Hello world") == "3e25960a79dbc69b674cd4ec67a72c62"
func stringToMd5(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let hash = data.withUnsafeBytes { (bytes: UnsafeRawBufferPointer) -> String in
        let hash = CC_MD5(bytes.baseAddress, CC_LONG(data.count), nil)
        return String(format: "%02x%02x%02x%02x", hash[0], hash[1], hash[2], hash[3])
    }
    
    return hash
}

// Given a string 'text', return its base64 equivalent string.
// If 'text' is an empty string, return nil.
// base64(text: "Hello world") == "SGVsbG8gd29ybGQ="
func base64(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let base64 = data.base64EncodedString()
    
    return base64
}

// Given a string 'text', return its base64 equivalent string.
// If 'text' is an empty string, return nil.
// base64(text: "Hello world") == "SGVsbG8gd29ybGQ="
func base64(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let base64 = data.base64EncodedString()
    
    return base64
}

// Given a string 'text', return its base64 equivalent string.
// If 'text' is an empty string, return nil.
// base64(text: "Hello world") == "SGVsbG8gd29ybGQ="
func base64(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let base64 = data.base64EncodedString()
    
    return base64
}

// Given a string 'text', return its base64 equivalent string.
// If 'text' is an empty string, return nil.
// base64(text: "Hello world") == "SGVsbG8gd29ybGQ="
func base64(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let base64 = data.base64EncodedString()
    
    return base64
}

// Given a string 'text', return its base64 equivalent string.
// If 'text' is an empty string, return nil.
// base64(text: "Hello world") == "SGVsbG8gd29ybGQ="
func base64(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let base64 = data.base64EncodedString()
    
    return base64
}

// Given a string 'text', return its base64 equivalent string.
// If 'text' is an empty string, return nil.
// base64(text: "Hello world") == "SGVsbG8gd29ybGQ="
func base64(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let base64 = data.base64EncodedString()
    
    return base64
}

// Given a string 'text', return its base64 equivalent string.
// If 'text' is an empty string, return nil.
// base64(text: "Hello world") == "SGVsbG8gd29ybGQ="
func base64(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let base64 = data.base64EncodedString()
    
    return base64
}

// Given a
return String(format: "%02x%02x%02x%02x", hash[0], hash[1], hash[2], hash[3]) // value of optional type 'UnsafeMutablePointer<UInt8>?' must be unwrapped to refer to member 'subscript' of wrapped base type 'UnsafeMutablePointer<UInt8>'
return String(format: "%02x%02x%02x%02x", hash[0], hash[1], hash[2], hash[3]) // value of optional type 'UnsafeMutablePointer<UInt8>?' must be unwrapped to refer to member 'subscript' of wrapped base type 'UnsafeMutablePointer<UInt8>'
return String(format: "%02x%02x%02x%02x", hash[0], hash[1], hash[2], hash[3]) // value of optional type 'UnsafeMutablePointer<UInt8>?' must be unwrapped to refer to member 'subscript' of wrapped base type 'UnsafeMutablePointer<UInt8>'
return String(format: "%02x%02x%02x%02x", hash[0], hash[1], hash[2], hash[3]) // value of optional type 'UnsafeMutablePointer<UInt8>?' must be unwrapped to refer to member 'subscript' of wrapped base type 'UnsafeMutablePointer<UInt8>'

import CommonCrypto

func stringToMd5(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)!
    let digest = data.withUnsafeBytes { (bytes: UnsafePointer<UInt8>) -> [UInt8] in
        var hash = [UInt8](repeating: 0, count: Int(CC_MD5_DIGEST_LENGTH))
        CC_MD5(bytes, CC_LONG(data.count), &hash)
        return hash
    }
    return digest.map { String(format: "%02x", $0) }.joined()
}
```swift
// Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToMd5(text: "Hello world") == "3e25960a79dbc69b674cd4ec67a72c62"
func stringToMd5(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)!
    let digest = data.withUnsafeBytes { (bytes: UnsafePointer<UInt8>) -> [UInt8] in
        var hash = [UInt8](repeating: 0, count: Int(CC_MD5_DIGEST_LENGTH))
        CC_MD5(bytes, CC_LONG(data.count), &hash)
        return hash
    }
    return digest.map { String(format: "%02x", $0) }.joined()
}
<|file_separator|>
let digest = data.withUnsafeBytes { (bytes: UnsafePointer<UInt8>) -> [UInt8] in // 'withUnsafeBytes' is deprecated: use `withUnsafeBytes<R>(_: (UnsafeRawBufferPointer) throws -> R) rethrows -> R` instead
CC_MD5(bytes, CC_LONG(data.count), &hash) // 'CC_MD5' was deprecated in macOS 10.15: This function is cryptographically broken and should not be used in security contexts. Clients should migrate to SHA256 (or stronger).

import CommonCrypto

func stringToMd5(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let hash = data.md5()
    return hash.map { String(format: "%02hhx", $0) }.joined()
}
```swift
// Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToMd5(text: "Hello world") == "3e25960a79dbc69b674cd4ec67a72c62"
func stringToMd5(text: String) -> String? {
    guard !text.isEmpty else {
        return nil
    }
    
    let data = text.data(using: .utf8)!
    let hash = data.md5()
    return hash.map { String(format: "%02hhx", $0) }.joined()
}
<|file_separator|>
let hash = data.md5() // value of type 'Data' has no member 'md5'

import CommonCrypto

func stringToMd5(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)!
    let digest = data.withUnsafeBytes { (bytes: UnsafePointer<UInt8>) -> String in
        let digest = CC_MD5(bytes, CC_LONG(data.count))
        return digest.reduce("") { $0 + String(format: "%02x", $1) }
    }
    return digest
}
```swift
// Given a string 'text', return its md5 hash equivalent string.
// If 'text' is an empty string, return nil.
// stringToMd5(text: "Hello world") == "3e25960a79dbc69b674cd4ec67a72c62"
func stringToMd5(text: String) -> String? {
    if text.isEmpty {
        return nil
    }
    let data = text.data(using: .utf8)!
    let digest = data.withUnsafeBytes { (bytes: UnsafePointer<UInt8>) -> String in
        let digest = CC_MD5(bytes, CC_LONG(data.count))
        return digest.reduce("") { $0 + String(format: "%02x", $1) }
    }
    return digest
}
<|file_separator|>
let digest = CC_MD5(bytes, CC_LONG(data.count)) // missing argument for parameter #3 in call

func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given two positive integers a and b, return the even digits between a
// and b, in ascending order.
// For example:
// generateIntegers(a: 2, b: 8) == [2, 4, 6, 8]
// generateIntegers(a: 8, b: 2) == [2, 4, 6, 8]
// generateIntegers(a: 10, b: 14) == [] as [Int]
func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>```
 // Fatal error: Range requires lowerBound <= upperBound

func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given two positive integers a and b, return the even digits between a
// and b, in ascending order.
// For example:
// generateIntegers(a: 2, b: 8) == [2, 4, 6, 8]
// generateIntegers(a: 8, b: 2) == [2, 4, 6, 8]
// generateIntegers(a: 10, b: 14) == [] as [Int]
func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given two positive integers a and b, return the even digits between a
// and b, in ascending order.
// For example:
// generateIntegers(a: 2, b: 8) == [2, 4, 6, 8]
// generateIntegers(a: 8, b: 2) == [2, 4, 6, 8]
// generateIntegers(a: 10, b: 14) == [] as [Int]
func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}

func largestProduct(array: [Int]) -> Int {
    var result = 0
    for i in 0..<array.count {
        for j in 0..<array.count {
            for k in 0..<array.count {
                if i != j && j != k && i != k {
                    result = max(result, array[i] * array[j] * array[k])
                }
            }
        }
    }
    return result
}

func vowels(string: String) -> Int {
    var result = 0
    for char in string {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            result += 1
        }
    }
    return result
}

func evenCount(array: [Int]) -> Int {
    var result = 0
    for i in array {
        if i % 2 == 0 {
            result += 1
        }
    }
    return result
}

func sum(array: [Int]) -> Int {
    var result = 0
    for i in array {
        result += i
    }
    return result
}

func product(array: [Int]) -> Int {
    var result = 1
    for i in array {
        result *= i
    }
    return result
}

func min(array: [Int]) -> Int {
    var result = array[0]
    for i in array {
        if i < result {
            result = i
        }
    }
    return result
}

func max(array: [Int]) -> Int {
    var result = array[0]
    for i in array {
        if i > result {
            result = i
        }
    }
    return result
}
```swift
// Given two positive integers a and b, return the even digits between a
// and b, in ascending order.
// For example:
// generateIntegers(a: 2, b: 8) == [2, 4, 6, 8]
// generateIntegers(a: 8, b: 2) == [2, 4, 6, 8]
// generateIntegers(a: 10, b: 14) == [] as [Int]
func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}

// Given an array of integers, return the largest product of any three integers.
// For example:
// largestProduct([2, 3, 4]) == 24
// largestProduct([2, 3, 4, 5]) == 60
// largestProduct([2, 3, 4, 5, 6]) == 720
func largestProduct(array: [Int]) -> Int {
    var result = 0
    for i in 0..<array.count {
        for j in 0..<array.count {
            for k in 0..<array.count {
                if i != j && j != k && i != k {
                    result = max(result, array[i] * array[j] * array[k])
                }
            }
        }
    }
    return result
}

// Given a string, return the number of vowels in the string.
// For example:
// vowels("hello") == 2
// vowels("aeiou") == 5
func vowels(string: String) -> Int {
    var result = 0
    for char in string {
        if char == "a" || char == "e" || char == "i" || char == "o" || char == "u" {
            result += 1
        }
    }
    return result
}

// Given an array of integers, return the number of even integers in the array.
// For example:
// evenCount([2, 1, 2, 3, 4]) == 3
// evenCount([2, 2, 0]) == 3
// evenCount([1, 3, 5]) == 0
func evenCount(array: [Int]) -> Int {
    var result = 0
    for i in array {
        if i % 2 == 0 {
            result += 1
        }
    }
    return result
}

// Given an array of integers, return the sum of the integers.
// For example:
// sum([1, 2, 3, 4, 5]) == 15
// sum([10, 9, 8, 7, 6]) == 36
func sum(array: [Int]) -> Int {
    var result = 0
    for i in array {
        result += i
    }
    return result
}

// Given an array of integers, return the product of the integers.
// For example:
// product([1, 2, 3, 4, 5]) == 120
// product([10, 9, 8, 7, 6]) == 720
func product(array: [Int]) -> Int {
    var result = 1
    for i in array {
        result *= i
    }
    return result
}

// Given an array of integers, return the smallest integer.
// For example:
// min([1, 2, 3, 4, 5]) == 1
// min([10, 9, 8, 7, 6]) == 6
func min(array: [Int]) -> Int {
    var result = array[0]
    for i in array {
        if i < result {
            result = i
        }
    }
    return result
}

// Given an array of integers, return the largest integer.
// For example:
// max([1, 2, 3, 4, 5]) == 5
// max([10, 9, 8, 7, 6]) == 10
func max(array: [Int]) -> Int {
    var result = array[0]
    for i in array {
        if i > result {
            result = i
        }
    }
    return result
}

// Given an array of integers, return the average of the integers.
// For example:
// average([1, 2, 3, 4, 5]) == 3
// average([10, 9, 8, 7, 6]) == 8
func average(array: [Int]) -> Int {
    var result = 0
    for i in array {
        result += i
 // Fatal error: Range requires lowerBound <= upperBound

func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given two positive integers a and b, return the even digits between a
// and b, in ascending order.
// For example:
// generateIntegers(a: 2, b: 8) == [2, 4, 6, 8]
// generateIntegers(a: 8, b: 2) == [2, 4, 6, 8]
// generateIntegers(a: 10, b: 14) == [] as [Int]
func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given two positive integers a and b, return the even digits between a
// and b, in ascending order.
// For example:
// generateIntegers(a: 2, b: 8) == [2, 4, 6, 8]
// generateIntegers(a: 8, b: 2) == [2, 4, 6, 8]
// generateIntegers(a: 10, b: 14) == [] as [Int]
func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>```
 // Fatal error: Range requires lowerBound <= upperBound

func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given two positive integers a and b, return the even digits between a
// and b, in ascending order.
// For example:
// generateIntegers(a: 2, b: 8) == [2, 4, 6, 8]
// generateIntegers(a: 8, b: 2) == [2, 4, 6, 8]
// generateIntegers(a: 10, b: 14) == [] as [Int]
func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given two positive integers a and b, return the even digits between a
// and b, in ascending order.
// For example:
// generateIntegers(a: 2, b: 8) == [2, 4, 6, 8]
// generateIntegers(a: 8, b: 2) == [2, 4, 6, 8]
// generateIntegers(a: 10, b: 14) == [] as [Int]
func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given two positive integers a and b, return the even digits between a
// and b, in ascending order.
// For example:
// generateIntegers(a: 2, b: 8) == [2, 4, 6, 8]
// generateIntegers(a: 8, b: 2) == [2, 4, 6, 8]
// generateIntegers(a: 10, b: 14) == [] as [Int]
func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound

func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
```swift
// Given two positive integers a and b, return the even digits between a
// and b, in ascending order.
// For example:
// generateIntegers(a: 2, b: 8) == [2, 4, 6, 8]
// generateIntegers(a: 8, b: 2) == [2, 4, 6, 8]
// generateIntegers(a: 10, b: 14) == [] as [Int]
func generateIntegers(a: Int, b: Int) -> [Int] {
    var result = [Int]()
    for i in a...b {
        if i % 2 == 0 {
            result.append(i)
        }
    }
    return result
}
<|file_separator|>
 // Fatal error: Range requires lowerBound <= upperBound