That's my impression as well. I think it's because access to knowledge has become a lot easier, so contestants know more; plus, the competitions themselves hav

That's my impression as well. I think it's because access to knowledge has become a lot easier, so contestants know more; plus, the competitions themselves have become more organized. For example, last I checked, the IOI had a syllabus outlining the various algorithms contestants needed to know. During my time, it was more of a wild west.