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;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;


namespace StartFinish
{
    class Program
    {   
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int[] array = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
            int swapCount = 0;
            
            for(int i = 0; i < n; i++)
            {
                for(int j = n-1; j>i; j--)
                {
                    if (array[j] < array[j - 1])
                    {
                        Swap(ref array[j], ref array[j-1]);

                        swapCount++;

                    }
                }
            }
            for (int i = 0; i < n; i++)
            {
                if (i != n - 1)
                {
                    Console.Write(array[i]+" ");
                }else
                {
                    Console.WriteLine(array[i]);
                }
            }
            Console.WriteLine(swapCount);
        }

        static void Swap(ref int x,ref int y)
        {
            int tmp = x;
            x = y;
            y = tmp;
        }

    }
}