Write A C++ Program To Multiply Two Numbers By Using Function Showing Return Variable.

#include <iostream.h> 
 #include <conio.h> 
  void main( ) 
 { 
        int x, y, z,mul( int,int); 
        clrscr(); 
        cout<<"\n Enter the value of x, y : "; 
        cin>>x>>y; 
        z = mul (x, y); 
       cout<<"Multiplied value is "<<z; 
       getch( ); 
  } 
      int mul (int p,int q) 
      {      
           int s; 
           s = p * q; 
           return (s); 
      }