Welcome to my AoC 2025 solutions. I’m using this repository to follow my journey, try out ideas and keep my strategies coherent throughout the month. Every day has a folder, input file and solutions in TypeScript. I use Bun for quick iteration and low friction tools. If you are solving the puzzles yourself, you’ll have an opportunity to compare notes or snag anything here that may help!
I’ve solved Advent of Code every year since 2020. Until now I kept my solutions private, but for 2025 I decided to publish everything as I go.
Eric Wastl, the creator of the Advent of Code challenge describes it as:
An 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. People use them as a speed contest, interview prep, company training, university coursework, practice problems, or to challenge each other.
Each day consists of two puzzles. To complete the challenge, you must solve all of the puzzles by December 25th.
Install Bun, then run any part file directly:
bun 01/part1.tsEach day folder includes part files and an input file. The scripts load input automatically and print the formatted answer.
I also keep a blog displaying my thoughts, views and opinions on each day's problem and how I went about solving it. You can find that here!
| Exercise Description | Link | Stars |
|---|---|---|
| Day 01: Secret Entrance | 2025/01 | ⭐⭐ |
| Day 02: Gift Shop | 2025/02 | ⭐⭐ |
| Day 03: Lobby | 2025/03 | ⭐⭐ |
| Day 04: Printing Department | 2025/04 | ⭐⭐ |