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.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {

	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int n = Integer.parseInt(br.readLine());
		String[] strs = br.readLine().split(" ");
		int[] inputData = new int[n];
		for (int i = 0; i < n; i++) {
			inputData[i] = Integer.parseInt(strs[i]);
		}
		int swapCnt = bubbleSort(inputData, n);
		printArray(inputData);
		System.out.println(swapCnt);

	}

	public static int bubbleSort(int[] A, int N) {
		int swapCnt = 0;
		boolean flag = true;
		while (flag) {
			flag = false;
			for (int i = N - 1; i > 0; i--) {
				if (A[i] < A[i - 1] ) {
					int temp = A[i];
					A[i] = A[i - 1];
					A[i - 1] = temp;
					swapCnt++;
					flag = true;
				}
			}
		}
		return swapCnt;
	}

	public static void printArray(int[] target) {
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < target.length; i++) {
			sb.append(target[i]);
			if (i < target.length - 1) {
				sb.append(" ");
			}
		}
		System.out.println(sb.toString());
	}
}