AdventOfCode/Rust/2022/04.rs

26 lines
613 B
Rust

#![feature(test)]
type Input = Vec<(u8, u8, u8, u8)>;
fn setup(input: &str) -> Input {
input
.lines()
.map(|line| {
let mut it = line.split(&[',', '-']).map(|x| x.parse().unwrap());
(|| Some((it.next()?, it.next()?, it.next()?, it.next()?)))().unwrap()
})
.collect()
}
fn part1(input: &Input) -> usize {
input
.iter()
.filter(|(a, b, c, d)| a <= c && d <= b || c <= a && b <= d)
.count()
}
fn part2(input: &Input) -> usize {
input.iter().filter(|(a, b, c, d)| d >= a && c <= b).count()
}
aoc::main!(2022, 4, ex: 1);