// function overloading usin c++

#include"iostream.h"

//Declarations (prototypes)

int volume(int);
double volume(double, int);
long volume(long, int, int);

int main()
{
cout<< volume(10) <<"\n";
cout<< volume(2.5,8) <<"\n";
cout<< volume(100L,75,15) <<"\n";

return 0;
}

//Function definitions

int volume(int s) //cube
{
return(s*s*s);
}
double volume(double r, int h) //cylinder
{
return(3.14519*r*h);
}
long volume(long l, int b, int h) //rectangular box
{
return(l*b*h);
}