#include <iostream>
using namespace std ;

//Pass by reference instead of pass by value
//Advantages of pass by reference

//--------------------------------------------------------------------
void func1( int& param1 )
{
param1  = 200 ;
}
//--------------------------------------------------------------------i

int main()
{
 int  local1 = 100 ;
 func1( local1 ) ;
 cout << local1 << endl ;
 return(0)  ;

}
//--------------------------------------------------------------------