adventofcode2022/day03/part2.rs

37 lines
1.2 KiB
Rust

// Copyright 2022 Christian Ulrich
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// usage: ./part2 < input
pub mod common;
use common::{Group, Rucksacks};
fn main() -> Result<(), &'static str> {
let rucksacks = Rucksacks {};
let mut result = 0;
let mut group_rucksacks = vec![];
for rucksack in rucksacks {
group_rucksacks.push(rucksack?);
if group_rucksacks.len() == 3 {
let group = Group::new(&group_rucksacks);
result += group.badge()?.priority();
group_rucksacks.clear();
}
}
println!("{result}");
Ok(())
}