Advent of Code

Crystal solutions to Advent of Code.

Installation

First install crystal.

Note: If on macOS, I recommend installing via homebrew because it includes interpreter support. The current version installed by asdf does not support the interpreter.

Usage

Create a file at .session and enter your cookie value.

Download input for a day:

crystal run ./src/advent_of_code.cr -- -d 3

Solve a day:

crystal run ./src/advent_of_code.cr -- -s 1

Testing

Run all tests:

crystal spec

Run a specific test:

crystal spec spec/01_spec.cr:8