aoc 2022 day01

day01.rs

fn main() {
    let input = include_str!("day01_input.txt");

    let mut elf_totals = vec![];
    let mut total = 0;
    for line in input.split('\n') {
        if line == "" {
            elf_totals.push(total);
            total = 0;
        } else {
            let cals = line.parse::<i32>().unwrap();
            total += cals;
        }
    }

    // part 1
    let biggest_total = elf_totals.iter().max().unwrap();
    println!("biggest total {}", biggest_total);

    // part 2
    let mut top_3 = vec![0, 0, 0];
    for total in elf_totals {
        for i in 0..top_3.len() {
            if total > top_3[i] {
                top_3[i] = total;
                top_3.sort();
                break;
            }
        }
    }

    println!("top 3 combined {}", top_3.iter().sum::<i32>());
}