Advent of Code 2020 day 14
Bit-twiddling, until it wasn't.
Recent posts
Advent of Code 2020 day 13
Reusing number theory
Advent of Code 2020 day 12
Day 12 was fairly straighforward: apply a bunch of rules to update a state. The two parts are so similar, I'll treat them together here. I started with some data definitions, for Directions,
Advent of Code 2020 day 11
Cellular automata, and being inefficient
Advent of Code 2020 day 10
Dynamic programming done quickly.
Advent of Code 2020 day 9
Playing to Haskell's strengths