I'd love to be able to submit my code - to there or to here. But I wouldn't want people to start cheating

Personally I think that some of these programming contests toss in problems that are dubious. One asks for entrants to submit sort algorithms. Hmmmm. Are they hoping for some breakthrough? Or perhaps they should just ask naive programmers to solve the traveling salesman problem, or other intractables. Just in the hope that there's an untapped genius solution out there. Then offer a $10 reward. Ha!