题解 | #KiKi和酸奶#

#include <stdio.h>

int main() {
    int n = 0;
    int h = 0;
    int m = 0;

    do {
    scanf("%d %d %d",&n,&h,&m);
    }while (m > n*h);
    if(m%h == 0)
    printf("%d",n-m/h);
    else
     printf("%d",n-m/h-1);
    return 0;
}