计算球体积
#include <stdio.h>
#define PI 3.1415927int main()
{
double v, x;
while(scanf("%lf", &x)!=EOF)
{
v = (4.0/3.0) * PI * x * x * x;
printf("%.3lf\n",v);
}
return 0;
}
int main()
{
double v, x;
while(scanf("%lf", &x)!=EOF)
{
v = (4.0/3.0) * PI * x * x * x;
printf("%.3lf\n",v);
}
return 0;
}