<p>USACO, which is basically the USAMO series but with computer science, also has some rounds before college applications are due. And their website is [Programming</a> Contest](<a href=“http://www.usaco.org%5DProgramming”>http://www.usaco.org). But these contests are a lot harder to get into than the math ones though, since you have to be able to know how to program already.</p>