Advent of Code 2025
The Elves have good news and bad news.
The good news is that they've discovered project management! This has given them the tools they need to prevent their usual Christmas emergency. For example, they now know that the North Pole decorations need to be finished soon so that other critical tasks can start on time.
The bad news is that they've realized they have a different emergency: according to their resource planning, none of them have any time left to decorate the North Pole!
To save Christmas, the Elves need you to finish decorating the North Pole by December 12th.
Collect stars by solving puzzles. Two puzzles will be made available on each day; the second puzzle is unlocked when you complete the first. Each puzzle grants one star. Good luck!
The puzzles
- AoC - Day 1a
This was harder than I thought it would be!
- AoC - Day 1b
I'm not very good at this..
- AoC - Day 2a
This was easier :)
- AoC - Day 2b
Oh no.. it got difficult again :(