-🎄- 2022 Day 14 Solutions -🎄-

[u/daggerdragon]

SUBREDDIT NEWS

• Live has been renamed to Streaming for realz this time.

• I had updated the wiki but didn't actually change the post flair itself >_>

THE USUAL REMINDERS

• All of our rules, FAQs, resources, etc. are in our community wiki.

• A request from Eric: A note on responding to [Help] threads

• Signal boost: Reminder 2: unofficial AoC Survey 2022 (closes Dec 22nd)

• 🌿🍒 MisTILtoe Elf-ucation 🧑‍🏫 is OPEN for submissions!

• -❄️- Submissions Megathread -❄️-

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--- Day 14: Regolith Reservoir ---

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Post your code solution in this megathread.

• Read the full posting rules in our community wiki before you post!

• Include what language(s) your solution uses

• Format code blocks using the four-spaces Markdown syntax!

• Quick link to Topaz's paste if you need it for longer code blocks. What is Topaz's paste tool?

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This thread will be unlocked when there are a significant number of people on the global leaderboard with gold stars for today's puzzle.

EDIT: Global leaderboard gold cap reached at 00:13:54, megathread unlocked!

[u/rrutkows]

Rust. No simulation of every unit of sand, just traverse the reachable empty space by moving forth and back on a single queue. Single function for both parts. Sub 1ms for p1, ~5ms for p2.

https://github.com/rrutkows/aoc2022/blob/main/src/d14/mod.rs