My iPhone custom software development business is expanding and we need more part-time programmers. Our recent apps include Unitron's uHear to test your hearing, OurKids, an upcoming app for Kik, and others.

You must:

• know C, C++, pointers, object and object-relational patterns already
• be ready to learn the iPhone SDK fast (we'll help)

I've personally been programming on the Cocoa SDK since 1998 back when it was called OpenStep, so if you can pick things up, we can get you up to speed in a few weeks.

Demonstrate your qualifications by answering 2 out of these 3 tricky questions:

[Question 1] (C Pointers) Here is some slightly odd C code, but it will produce an (int) result, provided that you make some small changes in order to make it compile. What is the result going to be, and why?

int * a = 1990;
int result = &5[a];

[Question 2] (ORM) Draw an relational/DB model that would work for the Twitter database or the Facebook database. You don't have to cover all of the features, just the basics. You can use ascii art if you like.

[Question 3] (C++ Objects) The C++ program below has just 2 compile time errors, 1 runtime error, and there is 1 single line missing. Send us a fixed version that compiles and runs correctly. The errors will test your knowledge of object use and management in C++, and the missing line will test you on abstract/virtual inheritance.

SEND TO: simon@semacode.com. Include your answer(s) and some source code that you have written, whether it's open source, for assignments, for fun, or whatever.

REMUNERATION: Competitive.

MORE INFO: http://simonwoodside.com/pages/consulting

(PS Please keep the answers to yourself)

//// File: futurama.cpp ////
#include <iostream>

class Drinker {
public: Drinker(); void drink( int potency ); int _numberOfDrinksSoFar;
private: virtual int cantDrinkAnyMoreThan() = 0;
}; Drinker::Drinker() { _numberOfDrinksSoFar = 0; }
class Robot : public Drinker { int cantDrinkAnyMoreThan() { return INT_MAX; } };
class Human : public Drinker {
};
void Drinker::drink( int potency ) {
  _numberOfDrinksSoFar += potency;
  if( _numberOfDrinksSoFar > cantDrinkAnyMoreThan() ) { std::cout << "I'm all done." << endl; }
}

int main (int argc, char * const argv[]) {
  int beer = 5, coffee = 3;
  Human fry;
  Robot * bender;
  for( int i=0; i<6283; i++ ) { bender.drink(beer); }
  for( int i=0; i<100; i++ ) { fry.drink(coffee); }
  std::cout << "Bender: " << bender->_numberOfDrinksSoFar << "  Fry: " << fry._numberOfDrinksSoFar << std::endl;
  fry.drink(1);
  return 0;
}

(Update Feb 14: updated code to make my intentions clearer)