Day 22: Sand

Megathread guidelines

  • Keep top level comments as only solutions, if you want to say something other than a solution put it in a new post. (replies to comments can be whatever)
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FAQ

  • What is this?: Here is a post with a large amount of details: https://programming.dev/post/6637268
  • Where do I participate?: https://adventofcode.com/
  • Is there a leaderboard for the community?: We have a programming.dev leaderboard with the info on how to join in this post: https://programming.dev/post/6631465
  • sjmulder@lemmy.sdf.org
    ·
    10 months ago

    C

    Part 1 was fun, essentially a matter of mapping a grid and implementing a function to scan above and below bricks.

    Was worried part 2 would either make the grid approach impossible (large numbers) or have combinatory complexity that would necessitate some super efficient dependency table that I don't know about. Luckily that wasn't the case! Phew.

    https://github.com/sjmulder/aoc/blob/master/2023/c/day22.c