I'm doing it again this year, or at least, I'm trying to. Elixir has been my favourite language to start learning ever, so despite the fact that work is extremely busy, and that I'm in the midst of moving from Australia to Canada, via The UK, I am cautiously optimistic, and certainly excited!

Every exercise is implemented in lib/aoc/day_{n}.ex. Each solution has example code with the supplied test input, which double as unit tests. Run the unit tests like so:

mix test

Or run a single file like:

mix test test/aoc/day_01.exs

There is a Mix task that passes stdin to a requested solution, and emits the answer for the supplied input. For example:

mix solve 2 b < input/day-2.txt