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.Scanner;
import java.util.StringJoiner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int size = Integer.parseInt(scanner.next());
        int[] array = new int[size];
        for (int i = 0; i < size; i++) {
            array[i] = Integer.parseInt(scanner.next());
        }

        int swapCount = 0;
        for (int i = 0; i < size; i++) {
            for (int j = size - 1; j > i; j--) {
                if (array[j] < array[j - 1]) {
                    swap(j, j - 1, array);
                    swapCount++;
                }
            }
        }
        System.out.println(concat(array));
        System.out.println(swapCount);
    }

    private static String concat(int[] array) {
        StringJoiner joiner = new StringJoiner(" ");
        for (int value : array) {
            joiner.add(String.valueOf(value));
        }
        return joiner.toString();
    }

    private static void swap(int i, int j, int[] array) {
        int temp = array[i];
        array[i] = array[j];
        array[j] = temp;
    }
}