advent-of-code-dart

My solutions to the Advent of Code puzzles written in the Dart programming language. I love solving programming puzzles, and I wanted to get more familiar with the base library features of Dart as I use it in my day job, which is mostly UI related and less general CS.

Given that, these are just my solutions to the problems. There are likely cleaner, faster or more idiomatic ways to do this in Dart (if so, please drop me a line and let me know).

Input files

The input files needed for these solutions come from the Advent of Code site and are customized for each user. They have requested that these input files are not made publicly available. Therefore I have put my input files in a private repo named advent_of_code_input and check it out as a sibling of this repo. However, you can specify the location of this repo with the -DINPUT_REPO=<some path> command line option to dart below.

Usage

To run the all of the solutions you can use the aoc program:

dart bin/aoc.dart

Which as noted above requires the input files to be in a sibling repo.

To run just a specific year's solutions:

dart bin/aoc.dart -y 2020

To run only specific days you can use:

dart bin/aoc.dart -y 2020 10 11 12

Tests

In addition to the solutions there are also unit tests for each of the problems as well as the common code in packages/aoc. To run the tests for a given package use:

cd packages/aoc2021
dart test

Code layout

• The main program to run everything is bin/aoc.dart.
• Each yearly event's code is located in its own package in packages/aoc20XX. Each day's solution is in the package's src directory under lib/src/dayXX.dart.
• Useful supporting utilities live in packages/aoc/lib/src/util.

Support the cause if you can

The Advent of Code is an awesome event that we can all look forward to each year. If you can, please support Eric's efforts at:

https://adventofcode.com/support