this post was submitted on 09 Dec 2025
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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.
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 |
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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console.log('Hello World')
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I can't code today because of travel, just as the one that might run slow enough to geek out on benchmarking the various options. Does seem like it's a bit of a jump in difficulty from previous days.
Based on the slow trickle of results pt2 was very hard. But, having now got a good result, its not that difficult, but getting to that solution/algorithm took a lot of brain power.
I hope todays is a little bit more relaxed.
wish not granted
Yeah, today is rough as well. I guess I jinxed it.