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 A{
  public static void Main(){
    int n,count = 0;
    n = int.Parse(Console.ReadLine());
    int[] array = new int[n];

    string[] str = Console.ReadLine().Split(' ');
    for(int i = 0;i < n;i++){
      array[i] = int.Parse(str[i]);
    }

    for(int i = 0;i < n - 1;i++){
      for(int j = n - 1;j > i;j--){
        if(array[j].CompareTo(array[j-1]) < 0){
          Swap(ref array[j],ref array[j-1]);
          count++;
        }
      }
    }

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

    Console.WriteLine(count);
    }

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