C言語　ALDS1_2_B　Selection Sort

#include <stdio.h>

static void swap(int *a, int *b)
{
    int tmp = *a;
    *a = *b;
    *b = tmp;
}

static void print_array(int array[], int array_len)
{
    for (int i = 0; i < array_len; i++)
    {
        printf("%d", array[i]);
        if (i != array_len - 1)
            printf(" ");
    }
    printf("\n");
}

/* 選択ソート */
static int selection_sort_count(int A[], int N)
{
    int min_index = 0;
    int count = 0;

    for (int i = 0; i < N - 1; i++)
    {
        min_index = i;
        for (int j = i; j < N; j++)
            if (A[j] < A[min_index])
                min_index = j;
        if (i != min_index)
        {
            swap(&A[i], &A[min_index]);
            count++;
        }
    }
    print_array(A, N);
    return count;
}

int main(void)
{
    int N;
    int A[100];

    scanf("%d", &N);
    for (int i = 0; i < N; i++)
        scanf("%d", &A[i]);

    printf("%d\n", selection_sort_count(A, N));

    return 0;
}