Advent of Code

This repository contains my Advent of Code solutions in PHP and a library built on Symfony that helps me work on puzzle-solving more conveniently.

How to use

Configure

Create .env file based on .env.example.

cp .env.example .env

How to get value for SESSION_ID?

Login into your account on Advent of Code website, open Network tab in your browser and copy and find session in cookie.

Generate solution template

It is helpful in immediately starting to solve puzzles. It creates all the required files for a puzzle. The default day is today.

Furthermore, this command:

• fetches puzzle name and injects it to attribute in solution class,
• fetches puzzle input and stores it in puzzle.in,
• fetches example input (with 99% accuracy) and stores it in example.in.

php app.php app:generate-template [--year=2022] [--day=1]

Solve puzzle

It runs a puzzle solver for a given day and compares it with expected results.

• you can pass example number to solve not default example input. There is five examples available.

php app.php app:solve [--year=2022] [--day=1] [--puzzle] [--example=3]

Good result

Wrong result

Upload answers

If you have solved the task correctly for puzzle input, you can immediately send it to AOC server. This command fetches answers from a server and sends them if they are missing. The default day is today.

If answers are correct, it saves them to puzzle.out file in dir with a solution.

php app.php app:upload [--year=2022] [--day=1]

List all puzzles and check the results

It displays a table with all puzzles for a given year. The default year is the current year.

• Click on puzzle name, opens browser with the puzzle description,
• in the table, you can notice execution time for exemplary and individual puzzle input.

php app.php app:list [--year=2022]

Fetch puzzle inputs and outputs

It fetches all puzzle inputs and outputs for existing solvers for given year.

php app.php app:fetch-puzzle-input-and-output [year]