HackerRank: Sorting: Bubble Sort (Swift 3)

gistfile1.txt

import Foundation

// read the integer n
let n = Int(readLine()!)!

// read the array
var arr = readLine()!.components(separatedBy: " ").map{ Int($0)! }

var swapCount = 0

for i in 0...arr.count-1 {
    for j in i...arr.count-1 {
        if arr[i] > arr[j] {
            let temp = arr[i];
            arr[i] = arr[j];
            arr[j] = temp
            swapCount += 1
        }
    }
}

print("Array is sorted in \(swapCount) swaps.")
print("First Element: \(arr.first!)")
print("Last Element: \(arr.last!)")