Solutions to Advent of Code 2021 exercises.
Run with cargo run --bin day$N to get the solution for a given $N.
# To run the day 1 exercise
cargo run --bin day1 -- day1/data/input.txt
cargo run --bin day1 -- -w day1/data/input.txt- Mostly copying from https://github.com/lloydmeta/aoc2021-rs