//
// sphere2a.cpp
// CSC 215
// John Rogers
// 
// This program inputs the radius of a sphere,
// computes its volume using a function, and outputs
// the volume.  This was the version actually presented
// in class on 9/15.
//

#include <iostream.h>

float computeVolume(float radius)
{
	const float pi = 3.14159;
	return 4.0/3.0 * radius * radius * radius * pi;
}

int main()
{
    float radius, volume;

    cout << "Please enter the radius of the sphere: ";
    cin >> radius;
 
    volume = computeVolume(radius);

    cout << "The sphere's volume is: " << volume << endl;
    
    return 0;
}