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.*;
import java.util.*;



public class Main{
    public static void main(String[] args)throws IOException{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String str;
                    
        str = br.readLine();
        int N = Integer.parseInt(str);
        str = br.readLine();
        
        String[] strs = str.split("\\s");
        int[] line = new int[N];
        for(int i=0;i<N;i++){
            line[i] = Integer.parseInt(strs[i]);
        }

        int ans =0;

        for(int i=0;i<N;i++){
            for(int j = N-1;j >= 1; j--){
                if(line[j] < line[j -1]){
                    ans++;
                    int temp = line[j-1];
                    line[j -1] = line[j];
                    line[j] = temp;
                }
            }
        }

        StringBuilder sb = new StringBuilder();
        for(int i =0;i<N;i++){
            if(i != N -1){
            sb.append(String.valueOf(line[i]));
            sb.append(" ");
            }else{
                sb.append(String.valueOf(line[i]));
            }
        }
        sb.append("\n");
        sb.append(String.valueOf(ans));
        System.out.println(sb.toString());
        br.close();
    }

    
}