Problem:
Selection Sort

Write a program of the Selection Sort algorithm which sorts a sequence A in ascending order. The algorithm should be based on the following pseudocode:

SelectionSort(A)
1 for i = 0 to A.length-1
2 mini = i
3 for j = i to A.length-1
4 if A[j] < A[mini]
5 mini = j
6 swap A[i] and A[mini]

Note that, indices for array elements are based on 0-origin.

Your program should also print the number of swap operations defined in line 6 of the pseudocode in the case where i ≠ mini.

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 space 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

6
5 6 4 2 1 3

Sample Output 1

1 2 3 4 5 6
4

Sample Input 2

6
5 2 4 6 1 3

Sample Output 2

1 2 3 4 5 6
3

Solution in C# (judge verdict: Accepted)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Collections;
using System.Linq.Expressions;

static class Program
{
    static void Main()
    {
        new Magatro().Solve();
    }
}

class Magatro
{
    private int N;
    private int[] A;
    private void Scan()
    {
        N = int.Parse(Console.ReadLine());
        A = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
    }

    private void Swap(ref int a, ref int b)
    {
        a ^= b;
        b ^= a;
        a ^= b;
    }

    public void Solve()
    {
        Scan();
        int cnt = 0;
        for (int i = 0; i < N; i++)
        {
            int minj = i;
            for (int j = i; j < N; j++)
            {
                if (A[j] < A[minj])
                {
                    minj = j;
                }
            }
            if (i != minj)
            {
                cnt++;
                Swap(ref A[i], ref A[minj]);
            }
        }
        Console.WriteLine(string.Join(" ", A.Select(i=>i.ToString()).ToArray()));
        Console.WriteLine(cnt);
    }
}