volume

#include<iostream>
using namespace std ;
int r , l ;
float v ;
int cylvol (double,double);
int main()

{

cout << "Enter cylinder's radius and its length:\n"  ;

cin >> r >> l ;

 cylvol (r,l);

cout <<"The volume is: "<< v << endl;
return 0 ;

}

int cylvol (double r ,double l)
{
v = r*r*l*3.14  ;
return v ;
}