🎄 Advent of Code 🎊

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Welcome to my collection of solutions for Advent of Code, an annual programming event with challenging puzzles for every day of December.

This repository contains my solutions for multiple years of Advent of Code written in TypeScript. I implore you to try out the challenges yourself before looking at my solutions.

Repository Structure

The repository contains some plumbing code for actually running the different years and days solvers with different input, but the meat is in the /src/solvers directory. Here every year has its own directory with ts files for each day.

Each day default exports a Solver that returns a Promise the will resolve to a Solution.

A Solution printed will look like this:

                     *
                    /.\
                   /o..\
                   /..o\
                  /.o..o\
                  /...o.\
                 /..o....\
                 ^^^[_]^^^

*------------------------------------------*
|        Solution for day 9 of 2015        |
|                                          |
|        First:  141                       |
|        Second: 736                       |
|                                          |
|        Ran in 21.589958ms                |
*------------------------------------------*

In /src/lib you will find common utility functions I've used to solve multiple of the challenges.

CLI

To run a specific day of a specific year with some input you can use the CLI. The main entry point is main.tsx. A helper shell-script aoc is available in the root`. You run the CLI with the following flags:

• --year, -y <year>

  The year to run. Defaults to current year

• --day, -d <day> (required)

  The day to run

• --input, -i <input>

  The input to read from. Defaults to stdin but can be any file. Use - to explicitly read from stdin

• --help, -h

  Prints helps message