#include <iostream>
#include <iomanip>
using namespace std;
#define PI 3.1415927
int main()
{
double r, v;
while (cin >> r)
{
v = PI*r*r*r*(4.0 / 3);
cout << setprecision(3) << fixed << v << endl;
}
}
杭电OJ2002
猜你喜欢
转载自blog.csdn.net/weixin_42265486/article/details/83505508
今日推荐
周排行