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 C# (judge verdict: Accepted)

using System;

class Program
{
    static void Main(string[] args) {
        int N = int.Parse(Console.ReadLine());
        string[] v = Console.ReadLine().Split(' ');

        int[] A = new int[N];
        for (int i = 0; i < N; i++) {
            A[i] = int.Parse(v[i]);
        }

        int cnt = bubbleSort(A);
        for (int i = 0; i < A.Length; i++) {
            if (i > 0) { Console.Write(" "); }
            Console.Write(A[i]);
        }
        Console.WriteLine("");
        Console.WriteLine(cnt);
    }

    static int bubbleSort(int[] A) {
        int cnt = 0;

        int flag = 1;
        while (flag == 1) {
            flag = 0;
            for (int j = A.Length - 1; j >= 1; j--) {
                if (A[j] < A[j - 1]) {
                    int v = A[j - 1];
                    A[j - 1] = A[j];
                    A[j] = v;
                    flag = 1;
                    cnt++;
                }
            }
        }
        return cnt;
    }
}