2022 day 13

2022 day 12

Add a justfile to make it easier to run everything

Utils: use a hash-table instead of an alist for sparse-grid

2022 day 11

Add sequence.lisp

Run in CI

2022 day 10

2022 day 9

2022 day 8: use dense grids

Part 1 is 20x faster, part 2 is 1000x faster.

Define sparse and dense grids

Move grid to the advent-of-code package

2022 day 8

2022 day 7

2022 day 6

More defpuzzle fun

2022 day 5

2022 day 4

Reorganize Lisp packages

Yep, those are my first Common Lisp packages 😅

2022 day 3