Aoc-2025

Helping elves fit oddly-shaped presents under Christmas trees before the deadline.

Counting paths through a device network to help repair the factory's toroidal reactor.

Toggling indicator lights to activate factory machines with the minimum number of button presses.

Finding the largest rectangle using known corners in a movie theater floor grid.

Connecting junction boxes to form electrical circuits with their nearest neighbours.

Tracing tachyon beams through a manifold and counting all possible timelines.

Helping some cephalopods with their maths homework after falling into a garbage chute.

Optimising the elves stock management of fresh ingredients.

Helping the elves manage paper rolls with accessible neighbour counting and iterative removal.

Day 3 brings battery banks and joltage calculations to restore emergency power to the escalator.

Day 2 brings product ID validation puzzles and some surprising lessons about Python's string counting behaviour.

It's December, which means it's time to take a break from all the usual projects; it's time for the Advent of Code!