题解 | 牛牛的水杯

#include <stdio.h>

int main()
{
    int h,r;
    scanf("%d %d",&h,&r);
    float b=3.14*h*r*r;
    int n=10000;
    int count=0;
   while(n>0)
   {
    n=n-b;
    count ++;
   }
   printf("%d",count);
}