Run composer install to install the dependencies.
Run ./aoc {day} {year?} to run the solution for a specific day. If year is not given, use the current year (for example ./aoc 1 to run the code for day 1 2021)
Run ./aoc21 puzzle {day} {year?} to get the description of the puzzle for the specific day.
Run composer test to automatically validate the solutions.

🧩 Add a new puzzle/solution

Create a directory in ./data/Y??/day? with the correct name.
- Create example.txt with the example values from the puzzle.
- Create data.txt with your personal input.
- Create puzzle.md with the puzzle. You can use this plugin to easily convert the puzzle to markdown.
Create a new class in the src/Y??/ directory and make sure it has the structure defined below.
Add this class to the ./aoc file, and you can run it.
Add a new test in ./tests with structure defined below.
Run composer test to run all the tests.

Solution command structure

<?php

namespace trizz\AdventOfCode\Y21;

// Make sure the classname is correct.
class Day1 extends Solution
{
  // Provide the expected results for part 1.
  public static int $part1ExampleResult = null;
  public static int $part1Result = null;

  // Provide the expected results for part 2.
  public static int $part2ExampleResult = null;
  public static int $part2Result = null;
    
  protected function part1(array $data): int
  {
      // Solution for part 1.
  }

  protected function part2(array $data): int
  {
    // Solution for part 2.
  }
}