My solutions for the Advent of Code 2019.
This is a Rust project, so you'll need a recent version of Rust installed. You'll also need to install cargo-aoc by running cargo install cargo-aoc (add a --force if you had it installed from previous years).
Once you've got that, you can run the latest day's code with:
cargo aoc
See here for more information about cargo-aoc: https://github.com/gobanos/cargo-aoc