I found these write-ups for advent of code. They are quite well done and a great learning resouce for algorithms!
@xuu@txt.sour.is Despite that these AoC math text problems are rather silly in my opinion (reminds me of an exercise in our math book where somebody wanted to carry a railroad rail around an L-shaped corner in the house and the question was how long that rail could be so that it still fits — sure, we’ve all carried several meter long railroad rails in our houses by ourselves numerous times…), these algorithms are really neat!
@lyse@lyse.isobeef.org I think there is a problem related to the fitting around a corner that is unsolved. I watched a video about it a little while back.