Even internship at a large company was at best 20% of this kind of difficulty. This entails so many little issues (technical + business) on top of the usual data storage and logic.
Maybe I fell asleep during that class I don't know.
Exactly, really my point should have been that you can't expect college to teach you explicit step by step knowledge for most real world problems that will require solving. The idea is that they make you solve a small set of problems and hope that you can extract a general framework for problem solving and communication. Of course there is a lot of rote memorization of reusable axioms that are taught as well.