I have been meaning to brush up on my interview skills, and I've found the lack of structure in LeetCode's Monthly problem sets to be quite frustrating. Every time I'd get stuck on a certain problem, I'd dive deep into the techniques behind the solution just to discard that knowledge the next day, as the selection of problems was seemingly random.
That was one of the first courses I took that course as I was learning to program. Of course most of it was way over my head at the time, but even to a beginner it was clear that he really, really knows what he is doing.
