src/lib.rs


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#![feature(iterator_try_collect, iter_array_chunks, array_windows, let_chains)]

pub mod day_01;
pub mod day_02;
pub mod day_03;
pub mod day_04;
pub mod day_05;
pub mod day_06;
pub mod day_07;

pub trait Problem {
    const DAY: u8;

    const INPUT: &'static str;
}

pub trait Solution: Problem {
    type Answer1: std::fmt::Display + Default;

    type Answer2: std::fmt::Display + Default;

    fn part_1(input: &str) -> anyhow::Result<Self::Answer1>;

    fn part_2(input: &str) -> anyhow::Result<Self::Answer2>;

    fn solve() -> anyhow::Result<()> {
        println!("Day {}.1", Self::DAY);
        println!("{}\n", Self::part_1(Self::INPUT)?);

        println!("Day {}.2", Self::DAY);
        println!("{}\n", Self::part_2(Self::INPUT)?);

        Ok(())
    }
}