sbalev/advent-of-code-rust

Advent of Code

As a learning project, I will try to solve some of the AoC puzzles in Rust.

Disclaimer: I am Rust beginner, my code will probably be neither idiomatic, nor efficient.

Constraints:

• Do not use of external crates. The goal is to learn Rust and to get familiar with the API of it's standard library. This means for example, no regex.
• Use efficient algorithms and do the best to implement them efficiently in Rust.

Project structure

For the moment, the code is organized as follows, but this organization could change in the future. The crate has modules yearYYYY for each year with submodules dayDD for each day. A module util contains some commonly used tools. I will try to keep the same structure for each day :

const INPUT: &str = include_str!("../../data/yearYYYY/dayDD/input.txt");

pub fn solve() -> (u32, u32) {
    solve_input(INPUT)
}

pub fn solve_input(input: &str) -> (u32, u32) {
    (0, 0)
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test() {
        let example = "";
        assert_eq!((0, 0), solve_input(example));
    }
}

The input is not read from a file but directly integrated in the binary.

The solve_input() function can be called passing either the small examples for testing or the real input.

Benchmarks

Measured by cargo bench on Intel(R) Core(TM) i7-1365U with RUSTFLAGS="-C target-cpu=native".

2023

Day	Time (µs)
01	32
02	10
03	68
04	40
05	12
06	0