You missed the third type, "write detailed leetcode regurgitating an obscure algorithm for this problem set up to have a very specific answer". IMO, most compl

You missed the third type, "write detailed leetcode regurgitating an obscure algorithm for this problem set up to have a very specific answer". IMO, most complaints about leetcode are about that type. Nobody should need to "grind" to pass the "can you program at all"-type fizzbuzz problems. They're annoying, and indicative of a remarkable failure in our hiring system, but they're a minor nuisance. Your second type, in my experience, is not typically referred to as leetcode at all, and is effectively impossible to "grind" for. Unfortunately, my third type is extremely "grindable", as memorizing all the common algorithmic puzzles is a thing you can just do if you spend enough time on it.