Advent Of Code

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An unofficial home for the advent of code community on programming.dev!

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.

AoC 2024

Solution Threads

M	T	W	T	F	S	S
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2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
23	24	25

Rules/Guidelines

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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Relevant Links

Advent of Code Homepage

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console.log('Hello World')

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🌲 - 2024 DAY 1 SOLUTIONS -🌲 (programming.dev)

submitted 3 weeks ago by [email protected] to c/[email protected]

39 comments fedilink hide all child comments

Day 1: Historian Hysteria

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://blocks.programming.dev/ 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/22323136
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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[–] [email protected] 1 points 3 weeks ago* (last edited 3 weeks ago)

J

NB. file handling from https://www.jsoftware.com/help/primer/files.htm
data =: > 0 ". each cutopen toJ fread '1.data'
result1 =: +/ | -/"1 |: ({~ /:)"1 |: data
NB. Lemmy insists on mangling the ampersand, the &amp; is _just_ an ampersand
result2 =: +/ , ((0&amp;{) * (="0 1)/) |: data