/*--------------------------------------------------------------------*/ 
/*  This program computes the volume V of a cylinder of radius r and height h. */ 
 
#include <iostream> 
using namespace std; 
 
const double PI = 3.141593; 
 
int main() 
{ 
   /*  Declare variables.  */ 
   double r, h, volume; 
 
   /*  Enter the radius of the cylinder.  */ 
   cout << "Enter the radius r of the cylinder: "; 
   cin >> r; 

   /*  Enter the height of the cylinder.  */
   cout << "Enter the height h of the cylinder: ";
   cin >> h;
 
   /*  Compute the volume of the cylinder.  */ 
   volume = PI * r * r * h; 
 
   /*  Print the value of the volume.  */ 
   cout << "The volume of a cylinder with radius " << r 
        << " and height " << h << " is: " << volume << endl; 
 
   /*  Exit program.  */ 
   return 0; 
} 
/*--------------------------------------------------------------------*/