Problem:
Bubble Sort

Write a program of the Bubble Sort algorithm which sorts a sequence A in ascending order. The algorithm should be based on the following pseudocode:

BubbleSort(A)
1 for i = 0 to A.length-1
2 for j = A.length-1 downto i+1
3 if A[j] < A[j-1]
4 swap A[j] and A[j-1]

Note that, indices for array elements are based on 0-origin.

Your program should also print the number of swap operations defined in line 4 of the pseudocode.

Input

The first line of the input includes an integer N, the number of elements in the sequence.

In the second line, N elements of the sequence are given separated by spaces characters.

Output

The output consists of 2 lines.

In the first line, please print the sorted sequence. Two contiguous elements of the sequence should be separated by a space character.

In the second line, please print the number of swap operations.

Constraints

1 ≤ N ≤ 100

Sample Input 1

5
5 3 2 4 1

Sample Output 1

1 2 3 4 5
8

Sample Input 2

6
5 2 4 6 1 3

Sample Output 2

1 2 3 4 5 6
9

Solution in JAVA (judge verdict: Accepted)

import java.util.*;

class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int n = scanner.nextInt();
		int[] arr = new int[n];

		for (int i=0; i<n; i++) {
			arr[i] = scanner.nextInt();
		}

		int count = 0;
		for (int i=0; i<arr.length; i++) {
			for (int j=arr.length-1; j>i; j--) {
				if (arr[j] < arr[j-1]) {
                    int temp = arr[j];
      		        arr[j] = arr[j-1];
      		        arr[j-1] = temp;
					count++;
				}
			}
		}

		for (int i=0; i<arr.length-1; i++) {
			System.out.print(arr[i] + " ");
		}
		System.out.println(arr[arr.length-1]);
		System.out.println(count);
	}

}