this post was submitted on 10 Dec 2024
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Advent of Code 2024 Week 2: this time it's all grids, all the time (awful.systems)
submitted 2 weeks ago by [email protected] to c/[email protected]
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[–] [email protected] 2 points 1 week ago (2 children)

Day 15

p1Pretty easy. Just check in the direction you want to push if you have space.

p2 DNFCurrently debugging with test cases from the subreddit. I’ve also created a shitty visualiser for it, stay tuned!

[–] [email protected] 2 points 1 week ago

Re: p2Definitely a bit tedious, I had to "play" a whole session to spot bugs that I had. It took me far longer than average. I had buggy dissepearing boxes because of update order, I would reccomend a basic test case of pushing a line/pyramid of boxes in every direction.

[–] [email protected] 2 points 1 week ago

P2 completeThe issue with my code was that I didn't make a push atomic, i.e. I would move boxes even if their ancestors couldn't be pushed. Making a list of candidate boxes to push solved this.

Here's the visualisation of the complete solution, though it doesn't show the last 100 frames or so. Please forgive me

https://imgur.com/a/RL50MaC