[2025 Day 9] When you wake up and see lots of grey stars

programming.dev

[2025 Day 9] When you wake up and see lots of grey stars

programming.dev

Avicenna@programming.dev to

Advent Of Code@programming.dev · 6 months ago

It is only going to be downhill from here

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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.

EC 2025

AoC 2025

Solution Threads

M	T	W	T	F	S	S
1	2	3	4	5	6	7
8	9	10	11	12

Visualisations Megathread

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

console.log('Hello World')

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