Today was interesting. Part 1 needed some debugging until I finally had all cases correct.
Solution Part2
Here is my day 12. It took around 20 minutes and is therefore obviously not the correct answer. But it gave me both stars. Maybe I come back to it later: https://github.com/ostcar/aoc2023/blob/main/days/day12.roc
Finally solved day 12! https://github.com/lindskogen/advent-of-code-2023/blob/main/day12/main.roc
Mine takes 9 seconds (on a pretty beefy M1 laptop), so there's probably still perf work to be done here.
Last updated: Jul 06 2025 at 12:14 UTC