It's very good at translating between programming languages, including pseudocode.
It can write a lot more valid code much quicker than any human, and in a whole slew of languages.
I haven't had the urge to use it much after playing around with it constantly for a few days, but it was pretty mind-blowing.
So not only would you have to submit a insanely large amount of code but you're also racing against literally millions of users writing legitimate code at any period of time.