#include
using std::cout;
using std::cin;
using std::endl;
#include
const double PI = 3.14159;
inline double sphereVolume( const double r )
{ return 4.0 / 3.0 * PI * pow( r, 3 ); }
int main()
{
double radius;
cout << "Enter the length of the radius of your sphere: ";
cin >> radius;
cout << "Volume of sphere with radius " << radius <<
" is " << sphereVolume( radius ) << endl;
return 0;
}