People have different standards of "know how to code". It could means you were able to solve this tricky algorithm problem I gave you in < 30 minutes. It could

People have different standards of "know how to code". It could means you were able to solve this tricky algorithm problem I gave you in < 30 minutes. It could means you know some of the darker corners of C++, know the STL backwards and forwards without having to consult references (like whats the complexity of inserting into a map vs unordered_map), how to do a custom comparator for std::priority_queue, or custom class for unordered_map (again without looking it up), know how to use std::function etc. Alot of that stuff was not taught at university at least where I went - the profs/TAs largely didn't care how your code looked, as long as it ran correctly, we didn't have timed coding exercise- the timed exams were writing out things by hand, mainly in pseudocode. Of course this was all 20+ years ago so perhaps things have changed.