Advent Of Code

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An unofficial home for the advent of code community on programming.dev! Other challenges are also welcome!

Advent of Code is an annual Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like.

Everybody Codes is another collection of programming puzzles with seasonal events.

AoC 2025

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Follow the programming.dev instance rules
Keep all content related to advent of code in some way
If what youre posting relates to a day, put in brackets the year and then day number in front of the post title (e.g. [2024 Day 10])
When an event is running, keep solutions in the solution megathread to avoid the community getting spammed with posts

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Icon base by Lorc under CC BY 3.0 with modifications to add a gradient

console.log('Hello World')

founded 2 years ago

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Ategon@programming.dev

Sigmatics@lemmy.ca

CameronDev@programming.dev

hades@programming.dev

🍵 - 2023 DAY 17 SOLUTIONS -🍵 (programming.dev)

submitted 2 years ago* (last edited 2 years ago) by CameronDev@programming.dev to c/advent_of_code@programming.dev

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Day 17: Clumsy Crucible

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

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

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[–] Sekoia@lemmy.blahaj.zone 1 points 2 years ago (1 children)

Rust: https://codeberg.org/Sekoia/adventofcode/src/branch/main/src/y2023/day17.rs

WOW that took me forever. Completely forgot how to dijkstra's and then struggled with the actual puzzle too. 1h20 total, but I was still top 1500, which I guess means most people really struggled with this, huh.

[–] lwhjp@lemmy.sdf.org 1 points 2 years ago

Yeah, finding a good way to represent the "last three moves" constraint was a really interesting twist. You beat me to it, anyway!