Print Inversions pairs of array in swift

Swift program for Print Inversions pairs of array. Here mentioned other language solution.

import Foundation
/*
  Swift 4 program for
  Display inversions pairs in array
*/
class InversionPairs
{
	// Print the all inversion pairs in given array
	func printInversionPair(_ arr: [Int], _ size: Int)
	{
		if (size <= 1)
		{
			return;
		}
		var i: Int = 0;
		// Outer loop
		while (i < size)
		{
			var j: Int = i + 1;
			// Inner loop
			while (j < size)
			{
				if (arr[i] > arr[j])
				{
					// When element of i is 
					// greater than element of j
					// Print inversion pair
					print("(" + String(arr[i]) + "," + 
                          String(arr[j]) + ")");
				}
				j += 1;
			}
			i += 1;
		}
	}
	static func main()
	{
		let task: InversionPairs = InversionPairs();
		// Define array elements
		let arr: [Int] = [1, 7, 6, 4, 5, 9, 8];
		// Get the number of array elements
		let size: Int = arr.count;
		// Display inversion pair result
		task.printInversionPair(arr, size);
	}
}
InversionPairs.main();

Output

(7,6)
(7,4)
(7,5)
(6,4)
(6,5)
(9,8)