maymeow.hashnode.devAoC25 Day 12: Christmas Tree FarmTetris, but make it elves. Today was all about figuring out whether oddly shaped presents could tile a given rectangle without overlaps. On paper it sounds like a straight polyomino packing question; in practice it turned into a tour through three di...Dec 12, 2025·7 min read
maymeow.hashnode.devAoC25 Day 11: Reactor RelaysToday’s problem looked like a straight "count the wire paths" exercise, but the density of the wiring diagram quickly turned it into a combinatorics workout. I ended up treating the factory like a directed acyclic graph of devices and tallying every ...Dec 12, 2025·6 min read
maymeow.hashnode.devAoC25 Day 10: FactoryToday’s puzzle felt like fixing two halves of the same machine: first we snap indicator lights into place with toggles, then we flip a lever and treat those same buttons like little add-one circuits. Two different algebra problems, one pile of schema...Dec 12, 2025·8 min read
maymeow.hashnode.devAoC25 Day 9: Movie TheaterNorth Pole interior decorators handed me a loop of red tiles laid out on a huge floor. Part 1 wanted the largest axis-aligned rectangle that uses any two red tiles as opposite corners. Part 2 limited the rectangle to stay entirely inside the red/gree...Dec 9, 2025·8 min read
maymeow.hashnode.devAoC25 Day 7: LaboratoriesWe find ourselves in a teleporter lab trying to fix a tachyon manifold. The puzzle input is a 2D grid representing the manifold. A tachyon beam starts at S and moves downwards. Empty space (.) allows the beam to continue straight down. However, split...Dec 8, 2025·6 min read
