Advent of Code 2022 solutions in JavaScript

This repository contains my solutions to all 50 (technically 49) puzzles from Advent of Code 2022.

I challenged myself to first solve each puzzle on my own, without looking at hints or solutions from other people. Only after I found the correct answer did I sometimes look at other solutions to learn from them while trying to further improve the code and performance of my solution.

Most solutions should take only a few milliseconds to run, but a small number of them may take up to a few seconds to compute the answer.

Running a solution

Since the puzzle inputs of Advent of Code should not be redistributed, this repo contains only the solutions, and you'll need to run them on your own puzzle inputs.

To run a solution, you can use the run-solution.js script in the root of this repo, which not only runs the solution with the given input, but also measures the time it took to run each part.

node run-solution.js [solution_file] [puzzle_input_file]

For example, to run the solution day_01/index.js, you can execute the following command:

node run-solution.js day_01/index.js day_01/puzzle_input.txt

Or in short:

node run-solution day_01 day_01/puzzle_input.txt

Passing additional arguments

To pass additional values to the puzzle solution that are not part of the puzzle input, you can add them as additional command line arguments:

node run-solution day_15 day_15/sample_input.txt --row=10 --coordMax=20

Most puzzle solutions don't take additional arguments.

Running tests

The included tests check the puzzle solutions against the sample inputs provided in the puzzle descriptions. You can run the tests with the following command:

node ./tests/run-tests.js