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;

namespace ConsoleApplication2
{
    class Program
    {
        static void Swap<T>(ref T l, ref T r)
        {
            T t = l; l = r; r = t;
        }

        static void Main(string[] args)
        {
            var length = int.Parse(Console.ReadLine());
            var intArray = Console.ReadLine().Split(' ').Select<string, int>(x => int.Parse(x)).ToArray();
            var swapTimes = 0;
            for (var i = 0; i < length; i++)
            {
                for (var j = length - 1; i < j; j--)
                {
                    if (intArray[j - 1] > intArray[j])
                    {
                        Swap(ref intArray[j - 1], ref intArray[j]);
                        swapTimes++;
                    }
                }
            }
            var stringArray = intArray.Select<int, string>(x => x.ToString()).ToArray();
            Console.WriteLine(String.Join(" ", stringArray));
            Console.WriteLine(swapTimes);
        }
    }
}