selection sort

#include <stdio.h>
#include <stdlib.h>
#define NMAX 101

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

int main(void) {
    static int arr[NMAX];
    int n;
    scanf_s("%d", &n);
    for (int i = 0; i < n; i++) {
        scanf_s("%d", &arr[i]);
    }
    for (int i = 0; i < n - 1; i++) {
        int minId = i;
        for (int j = i + 1; j < n; j++) {
            if (arr[minId] > arr[j]) {
                minId = j;
            }
        }
        swap(&arr[i], &arr[minId]);
    }
    for (int i = 0; i < n; i++) {
        printf("%d ", arr[i]);
    }
    putchar('\n');
    return 0;
}