I finished all 12 days of Advent of Code 2025! #AdventOfCode https://adventofcode.com — did it in my own language, mu (Go/Python-ish, dynamic, int/bool/string, no floats/bitwise). Found a VM bug, fixed it, and the self-hosted mu compiler/VM (written in mu, host in Go) carried me through. 🥳

I just completed “Printing Department” - Day 4 - Advent of Code 2025 #AdventOfCode https://adventofcode.com/2025/day/4 – Again, I’m doing this in mu, a Go(ish) / Python(ish) dynamic langugage that I had to design and build first which has very few builtins and only a handful of types (ints, no flots). 🤣

I just completed “Lobby” - Day 3 - Advent of Code 2025 #AdventOfCode https://adventofcode.com/2025/day/3 – Again, I’m doing this in mu, a Go(ish) / Python(ish) dynamic langugage that I had to design and build first which has very few builtins and only a handful of types (ints, no flots). 🤣

I just completed “Gift Shop” - Day 2 - Advent of Code 2025 #AdventOfCode https://adventofcode.com/2025/day/2 – But again, I’m solving this in my own language mu that I had to build first 🤣

I just completed “Secret Entrance” - Day 1 - Advent of Code 2025 #AdventOfCode https://adventofcode.com/2025/day/1 — However I did it in my own toy programming language called mu, which I had to build first 🤣

@itsericwoodward@itsericwoodward.com Nice to see someone else also participating! 🥳

(Btw, they don’t want us to share our inputs: https://www.reddit.com/r/adventofcode/wiki/faqs/copyright/inputs/ Yeah, it’s a bit annoying. I also have to do quite a bit of filtering on my repo …)

Working on day 3 of the Advent of Code 2025: https://adventofcode.com/

My solutions repo: https://git.itsericwoodward.com/eric/aoc-2025

Changes to Advent of Code starting this December
Comments ⌘ Read more

Advent of Code will be different this year:

https://old.reddit.com/r/adventofcode/comments/1ocwh04/changes_to_advent_of_code_starting_this_december/

There will only be 12 puzzles, i.e. only December 1 to December 12. This might make it more interesting for some people, because it’s (probably) less work and a lower chance of people getting burned out. 🤔

Personally, I’ll probably stretch it out over 24 days. Giving myself more time to solve each puzzle and I really want this event to last the entire month. 😅

Maybe this makes it more interesting for some people around here as well?

Day 19 was a really nice puzzle. 😊

Erlang Solutions: Advent of Code 2024

Like every year, I start the challenge with the best attitude and love of being an Elixir programmer. Although I know that at some point, I will go to the “what is this? I hate it” phase, unlike other years, this time, I am committed to finishing Advent of Code and, more importantly, sharing it with you.

I hope you enjoy this series of December posts, where we will discuss the approach for each exercise. … ⌘ Read more

I have been really impressed with the cool visualizations in pygame that @gereleth over on Twitter has been making. #AdventOfCode

So today’s #adventofcode was solved with no programming. Just a bit o maths and wolfram/alpha

Erlang Solutions: Advent of Code 2023
Hello! I’m Piotr from Erlang Solutions Poland and I have the pleasure of saving Christmas this year with the power of Erlang for you!

This is the second time we participate in the amazing event called the Advent of Code. Last year’s edition was solved by my colleague Aleksander and as far as I know – many of you enjoyed following his efforts. I hope you’ll like my tale of helping S … ⌘ Read more

** December adventure **
Over the past couple years I’ve done the advent of code to varying degrees. I thought I was going to do it again this year but decided to try something different. I’ve been calling what came together a“ December Adventure.”

It isn’t anything fancy; throughout December I aim to write a little bit of code everyday. So far I’ve written a bit of apl, bash, elisp, explored a bunch of flavors of scheme, and star … ⌘ Read more

Day 2 done in #adventofcode

https://gitlab.com/AsbjornOlling/aoc2022/-/blob/main/02/02.hy

#Hy wouldn’t let me use lisp symbols in pattern matching blocks, so I had to use string literals instead 😢

I wonder if that’s a bug, or if I’m using it wrong… ⌘ Read more

Not that easy to decide when coming home from work: which site do I visit first?

• Advent of Code
  
• Carlsen-Nepomniachtchi