#include <stdio.h>
#include <math.h>

int main(void) {
        int foo;
        foo = ceil(4/5);
        printf("Ceil 4/5: %d\n", foo);
        foo = ceil(8/3);
        printf("Ceil 8/3: %d\n", foo);
        foo = ceil(6/5);
        printf("Ceil 6/5: %d\n", foo);
        return 1;

}

/*output:

Ceil 4/5: 0
Ceil 8/3: 2
Ceil 6/5: 1
*/