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)
  • You can send code in code blocks by using three backticks, the code, and then three backticks or use something such as https://topaz.github.io/paste/ if you prefer sending it through a URL

FAQ

  • sjmulder@lemmy.sdf.org
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    11 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