Therein lies my solutions to the Advent of Code. They are ordered by year, then by day.

For each puzzle, I usually try to make part two retro-compatible with part one.

Tests are written in Java. The build tool is Maven. Each year, I update the language version to play with the latest features.

So you need to have a recent JDK and Maven installed on your machine.

As advised by the rules, the puzzle inputs are not included. Each test expects the input to be placed in a file named "input" in the same package.

For instance, my layout:

src/main
 ├─ java
 │   └─ fr/lbroquet/adventofcode2025
 │       └─ day1
 │           └─ Main.java   <--------- puzzle code
 └─ resources   <--------------------- Git-ignored
     └─ fr/lbroquet/adventofcode2025
         └─ day1
             └─ input   <------------- puzzle input

I recommend laying out your inputs in the aforementioned fashion, then running the following commands:

mvn compile
java -cp target/classes fr.lbroquet.adventofcode2025.day1.Main