This is pretty cool.

But important to note, "competitive level" means it is good at programming competitions.

Meaning these are problems with a limited solution space, designed to be fully understood and fully explained in the question, and solved in a very short period of time.

I'm not saying it's not impressive... But in the real world of engineering, there is almost never a problem where you can say "here is EXACTLY what I want, with EVERY requirement clearly explained, and this shouldn't take you more than an hour start to finish."