fn main() {
    const INPUT: &str = include_str!("../input.txt");

    let split = INPUT.split("\n");
    let mut calories: Vec<u64> = Vec::new();

    let mut running_total: u64 = 0;
    for s in split {
        if s == "" {
            calories.push(running_total);
            running_total = 0;
        } else {
            running_total += s.trim().parse::<u64>().expect("Invalid input line: {s}!");
        }
    }

    let max_calories = calories.iter().max().unwrap();

    println!("Max calories: {max_calories}");

    calories.sort_by(|a, b| b.cmp(a));
    let top_three = calories[0] + calories[1] + calories[2];
    println!("Sum of top 3: {top_three}");
}