---cargo
---

static CONTENT: &'static str = include_str!("./inputs/09_1.txt");

fn main() {
    let points: Vec<(usize, usize)> = CONTENT.lines().map(|l| l.trim()).filter(|l| !l.is_empty()).map(|l| {
        let (first, second) = l.split_once(',').unwrap();

        let first = first.parse::<usize>().unwrap();
        let second = second.parse::<usize>().unwrap();

        (first, second)
    }).collect();
    println!("Points:\n{:?}", points);

    let mut rects: Vec<((usize, usize), (usize, usize), usize)> = points.iter()
        .flat_map(|p| core::iter::repeat(*p).zip(points.iter().copied()))
        .filter(|(f, s)| f != s)
        .map(|(f, s)| (f, s, (f.0.abs_diff(s.0)+1) * (f.1.abs_diff(s.1)+1)))
        .collect();

    rects.sort_by_key(|(_, _, a)| *a);

    // println!("Rectangle: {:?}", rects);
    
    println!("Largest: {:?}", rects.last().unwrap());
}