题解 | #牛牛的水杯#
牛牛的水杯
https://www.nowcoder.com/practice/c196c47c23394bf3bdd4f82a838df6bf
#include <stdio.h>
#define PI 3.14
int main()
{
//输入杯子高度，底面半径；
float h = 0, r = 0,v = 0, res = 0;
int N = 0;
scanf("%f%f",&h,&r);
v = PI * h * r * r;
//代入公式，判断其于10升
while(res >= 0)
{
N++;
res = 10000 - v * N;
}
//输出结果
printf("%d",N);
return 0;
}