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.*;

public class Main {
  public static void main(String[] args) {
    try {
      BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
      int count = Integer.parseInt(in.readLine());
      String[] arrStr = in.readLine().split(" ");
      int[] arrInt = new int[count];
      for(int i=0; i<count; i++) { arrInt[i] = Integer.parseInt(arrStr[i]); }
      int flag = 1;
      int cntResult = 0;
      while(flag==1) {
        flag = 0;
        for( int j = count-1; j > 0; j-- ) {
          if(arrInt[j] < arrInt[j-1]) {
            int tmp = arrInt[j];
            arrInt[j] = arrInt[j-1];
            arrInt[j-1] = tmp;
            flag = 1;
            cntResult++;
          }
        }
      }
      StringBuilder sb = new StringBuilder();
      for( int i : arrInt ) { sb.append(i).append(" "); }
      System.out.println(sb.toString().trim());
      System.out.println(cntResult);
    } catch (IOException e) {
    }
  }
}