I strongly prefer actual implementations and adore the way this was written. Maybe its all of the "to get this to run in O(N) time we will leave the trick for t

I strongly prefer actual implementations and adore the way this was written. Maybe its all of the "to get this to run in O(N) time we will leave the trick for the reader to discover" I've bumped into. Or the classic "use this esoteric pay-walled reference for instructions for this important subalgorithm" then when you get that reference you realize its doing the same sort of thing. Super cool for quizzing masters students, pretty ridiculous for people in industry or hobbyists who learn by playing with code. Unfortunately when that happens there is almost never an OSS implementation with the "trick" either.