These are puzzles for the Advent of Code 2021 challenge, written and solved in the Rust programming language.
The puzzle for each day is in its own folder in src/bin, and can be run
using the following command (from the root folder):
cargo run --bin day1
If a particular day has tests, you can also run those:
cargo test --bin day1
This year, I've put each day into its own folder because then I can give each its own README. I'll use this to write a little explanation of how it works, why I did something a certain way, or some other useful notes that may be helpful to people learning.