pawroman / advent-of-rust-2018

My Rust solutions to Advent of Code 2018 challenges

Advent of code 2018

My Rust solutions to Advent of Code 2018 challenges: https://adventofcode.com/2018

Design choices

Although one can devise much more succinct solutions to some problems (write code in ad-hoc script style and avoid over-engineering), my motivation was to:

• Be correct and write the code such that it can be easily tested. All the code has tests (test coverage might not be 100%, but it's pretty solid).

• Apply defensive programming (assume the challenge can have malformed input or might never converge to a solution).

• Learn more advanced Rust, in particular:

  • Testing.

  • "Production grade" error handling (never panic, always return structured errors).

  • Generic programming and the trait system.

  • The 2018 edition!

Running

To build & run, make sure you have Rust 1.31 or above (using Rust 2018).

All code has tests, you can run all of them using:

$ cargo test

To run one a challenge, e.g. day01, you need to specify its name and path to input:

$ cargo run --bin day01 day01/input/input

Or to run in release mode:

$ cargo run --release --bin day01 day01/input/input