Adding game.

#include<iostream>

using namespace std;

int func(void) {
  int b;
  int c;
  int r;
  cout << " hello enter a number " << endl;
  cin >> b;
  cout << " enter another number " << endl;
  cin >> c;
  r = b + c;
  return r;
}

int main(int argc, char * argv[]) {
  int t(0);
  cout << " Hello world would you like to play a little game? if so type 0 if no 1 " << endl;
  cin >> t;
  if (t == 0) {
    int r = func();
    cout << " the result is " << r << endl;
  }
  else if (t == 1) {
    cout << " thanks for typing 1 bye " << endl;
  }
  else {
    cout << " see you later!" << endl;
  }

  return 0;
}