Code:

#include <iostream>int Add (int x, int y){    cout << "In Add(), recieved " << x << " and " << y << endl;    system ("pause");    return (x+y);}int main(){    cout << "im in main() " << endl;    int a, b, c;    cout << "enter two numbers: " <<endl>> a;    cin >> b;    cout << "calling Add() " << endl;    c=Add(a, b);    cout << "back in main()" << endl;    cout << " c was set to" << c << endl;    cout << " exiting...." << endl;    system ("pause");    return 0;}

Code:

#include <iostream>using namespace std;int main(){    cout << "Hello World" << endl;    system("pause");    return 0;}