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 JAVA (judge verdict: Accepted)

import java.util.Scanner;

/**
 * Created by zhangrunfeng on 2/16/20
 */
public class Main {
    private int N;
    private int[] arr;

    public Main(Scanner sc) {
        N = sc.nextInt();
        arr = new int[N];
        for (int i = 0; i < N; i++) {
            arr[i] = sc.nextInt();
        }
    }

    public void printArray() {
        for (int i = 0; i < N-1; i++) {
            System.out.print(arr[i] + " ");
        }
        System.out.println(arr[N-1]);
    }

    public void selectionSort() {
        int count = 0;
        for (int i = 0; i < N-1; i++) {
            int minIx = i;
            for (int j = minIx+1; j < N; j++) {
                if (arr[j] < arr[minIx]) {
                    minIx = j;
                }
            }
            if (minIx != i) {
                count++;
                // swap arr[i] & arr[minIx]
                int tmp = arr[i]; arr[i] = arr[minIx]; arr[minIx] = tmp;
            }
        }
        printArray();
        System.out.println(count);
    }

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        Main m = new Main(sc);
        m.selectionSort();
    }
}