My attempt at Advent of Code 2020 using Rust.
Layout of the project should put any test inputs under input/ as e.g. 01.txt for Day 1.
The code for each day can be placed under src/bin/ as e.g. 01.rs for each day, with a main() which runs any necessary parts.
Common code should be able to be shared between these binaries.
To run, specify the day like cargo run --bin 01, or set the Cargo.toml default (usually set to most up-to-date day). Same goes for any tests.