fjMcit - Online C Compiler & Debugging Tool

#include <stdio.h>

void swap(int *a, int *b);
void sort(int *x, int *y);

int main(void) {
    int x, y;

    scanf("%d", &x);
    scanf("%d", &y);

    sort(&x, &y);

    printf("%d %d\n", x, y);

    return 0;
}

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

void sort(int *x, int *y) {
    if (*x < *y) {
        swap(x, y);
    }
}