🎄🎅 Advent of Code 2025 🎅🎄

My OCaml 🐫 solutions for some Advent of Code 2025 puzzles.

How to run

1. Clone the repository

git clone https://github.com/danielrouco/Advent-of-Code-2025.git

In each folder there are these files:

dayN
├── example.txt
├── input.txt
├── part1.ml
└── part2.ml

2. Compile part X of day N:

cd dayN

ocamlopt partX.ml -o partX

3. Run the executable

./partX

Note

By default the program gives the solution for the input.txt file. If you want to change that, only change the first line of the .ml file:

By default:

let file = open_in "input.txt"

If you want to execute it with example.txt instead:

let file = open_in "example.txt"