I love Advent of Code. As I sit here trying to prepare for my next set of 'leet' interviews, I wish employers could switch over to this style of tech questions. Advent of Code requires good coding and problem solving skills. Leet coding requires you to memorize every operation for dozens of data structures like how to insert elements in a min heap.

( Insert elements at the end and swap with the parent until the tree is correctly ordered again. Good luck figuring this out in 20 minutes if you don't know it ahead of time. )

( Now prepare yourself to remember how to insert/delete/search for elements in every other data structure with any number of different qualifiers when it's not going to be obvious at the outset of the question what kind of data structure to use )

( Oh and make sure you've memorized the time and space complexity )

( Not that I'm bitter or anything )