//n盒奶，h分钟喝一盒，m分钟后剩多少盒 #include<stdio.h> int main() { int n,h,m; scanf("%d %d %d",&n,&h,&m); if(m%h==0) { printf("%d",n-(m/h)); } else { printf("%d",n-1-(m/h)); } return 0; }