Anson/Aoc-2023-Rust
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day2

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Anson Biggs 2023-12-01 23:44:34 -07:00
parent 90dfcaebe9
commit d78aee48a7
1 changed files with 41 additions and 13 deletions
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54
src/day2.rs
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@ -1,4 +1,5 @@
// use itertools::Itertools; // use itertools::Itertools;
use std::cmp;
use std::fs; use std::fs;
pub fn run() { pub fn run() {
@ -6,9 +7,10 @@ pub fn run() {
let input = fs::read_to_string("./inputs/day2.txt").expect("Could not read file"); let input = fs::read_to_string("./inputs/day2.txt").expect("Could not read file");
println!("\tPart 1: {}", part1(&input)); println!("\tPart 1: {}", part1(&input));
// println!("\tPart 2: {}", part2(&input)); println!("\tPart 2: {}", part2(&input));
} }
#[derive(Debug)]
struct Game { struct Game {
red: usize, red: usize,
green: usize, green: usize,
@ -66,7 +68,35 @@ fn part1(games: &str) -> usize {
valid_games.into_iter().sum() valid_games.into_iter().sum()
} }
// fn part2(calibration_input: &str) -> usize {} fn part2(games: &str) -> usize {
let mut game_powers: Vec<usize> = vec![];
for game in games.lines() {
let (_, rounds) = game.split_once(':').unwrap();
let mut game_minimums = Game {
red: 0,
green: 0,
blue: 0,
};
for round in rounds.split(';') {
let dice = round.split(',');
for die in dice {
let (amount_str, color) = die.trim_start().split_once(' ').unwrap();
let amount = amount_str.parse::<usize>().unwrap();
match color {
"red" => game_minimums.red = cmp::max(game_minimums.red, amount),
"green" => game_minimums.green = cmp::max(game_minimums.green, amount),
"blue" => game_minimums.blue = cmp::max(game_minimums.blue, amount),
_ => panic!("No color match found"),
}
}
}
game_powers.push(game_minimums.red * game_minimums.green * game_minimums.blue);
}
game_powers.into_iter().sum()
}
#[cfg(test)] #[cfg(test)]
mod tests { mod tests {
@ -83,16 +113,14 @@ Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green";
assert_eq!(part1(input), 8); assert_eq!(part1(input), 8);
} }
// #[test] #[test]
// fn test_2() { fn test_2() {
// let input = "two1nine let input = "Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green
// eightwothree Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue
// abcone2threexyz Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red
// xtwone3four Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red
// 4nineeightseven2 Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green";
// zoneight234
// 7pqrstsixteen";
// assert_eq!(part2(input), 281); assert_eq!(part2(input), 2286);
// } }
} }