#include <iostream>
using namespace std;

// we creating a function 
  void printMyName(){

    cout<<"Vikas"<<endl;
}

// 2nd function we create for subtract
 
int sub(int x ,int y ){
  return x-y;
}

// now overloading a function 
// in overloading we create same name function and store some more arguments called fn overl..

int sub(int x,int y ,int z){
return (x-y-z);

}



int main() {
    
// calling a function 
// call fun..by name
 printMyName();

// calling a 2nd function 
// or call a function by value 
 cout<<sub(45,7)<<endl;

// call a function by reference
int a =22; // in this we directly not put value 
int b= 55; // we put the address of the integer in function 
cout<<sub(a,b)<<endl;



//calling overloading fn..
 cout<<sub(34,5,6)<<endl;
    return 0;
}