题解 | #对其元素按照升序或降序进行排序#

import Foundation

while let line = readLine() {
    
    var array = readLine()!.components(separatedBy: " ")
    let flag = Int(String(readLine()!))!

    for i in 0..<array.count {
        for j in 0..<array.count-i-1 {
            let first = Int(array[j])!
            let second = Int(array[j+1])!

            if (first > second) && flag == 0 {
                array.swapAt(j,j+1)
            } else if (first < second) && flag == 1 {
                array.swapAt(j,j+1)
            }
        }
    }
   
    print(array.joined(separator:" "))
}