day 2

b-cube/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "b-cube"
+version = "0.1.0"

b-cube/Cargo.toml

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+[package]
+name = "b-cube"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

b-cube/src/input

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+Game 1: 13 red, 18 green; 5 green, 3 red, 5 blue; 5 green, 9 red, 6 blue; 3 blue, 3 green
+Game 2: 2 green, 3 blue, 5 red; 9 green, 4 red, 2 blue; 4 green, 3 blue; 2 blue, 3 red; 5 red, 3 blue, 9 green; 9 green, 5 red, 2 blue
+Game 3: 12 green, 3 red, 3 blue; 2 blue, 5 green, 2 red; 2 red, 3 blue, 11 green; 2 red, 8 green, 7 blue
+Game 4: 1 green, 2 blue; 7 green, 13 red; 2 blue, 5 green, 7 red; 6 green, 2 red
+Game 5: 6 blue, 4 green; 8 blue, 7 green; 1 red, 10 blue
+Game 6: 4 red, 4 blue, 2 green; 8 green, 1 blue, 8 red; 9 green, 1 red, 3 blue
+Game 7: 3 red, 12 green, 4 blue; 1 blue, 3 red, 6 green; 4 blue, 3 red, 15 green; 11 green, 2 blue, 2 red
+Game 8: 13 blue, 7 green, 8 red; 5 green, 8 blue, 2 red; 5 red, 6 blue, 7 green; 6 green, 6 red, 3 blue; 7 blue, 8 red, 6 green
+Game 9: 4 blue, 1 green, 4 red; 16 red, 1 green, 7 blue; 11 red, 3 green, 7 blue
+Game 10: 5 green, 1 red; 5 green, 3 blue; 1 red, 7 green, 3 blue; 1 blue, 6 green; 2 green, 4 blue
+Game 11: 10 green, 2 blue, 2 red; 14 green, 1 blue, 3 red; 13 green; 3 green, 2 red; 3 red, 1 blue, 2 green; 1 red, 10 green, 2 blue
+Game 12: 9 green, 2 blue; 11 green, 1 blue; 2 red, 1 blue; 1 blue, 2 red, 3 green; 1 blue, 2 red, 3 green
+Game 13: 11 blue, 3 red, 8 green; 9 red, 7 blue; 7 blue, 4 red
+Game 14: 17 blue, 2 red; 1 green, 13 blue, 1 red; 4 blue, 1 red, 4 green; 2 blue, 5 red, 13 green; 3 blue, 4 green, 6 red; 9 green, 14 blue, 6 red
+Game 15: 7 green, 2 blue, 3 red; 4 red, 18 green; 8 green, 1 blue; 3 red, 15 green, 2 blue; 1 red, 15 green; 9 green, 3 red, 1 blue
+Game 16: 10 red, 19 blue, 5 green; 12 red, 5 blue; 6 red, 3 green, 14 blue; 8 red, 10 blue, 6 green; 7 green, 10 red, 17 blue
+Game 17: 3 green, 3 red, 1 blue; 3 blue, 1 green, 2 red; 4 green, 3 red, 2 blue
+Game 18: 1 red, 2 blue; 1 green, 4 blue; 1 blue; 5 blue; 1 green, 3 red, 6 blue
+Game 19: 3 blue, 5 red, 8 green; 10 red, 6 blue, 11 green; 5 blue, 7 red, 8 green; 9 blue, 6 green, 5 red; 8 red, 12 green, 8 blue; 1 blue, 5 green, 10 red
+Game 20: 16 blue, 2 green; 10 green, 1 red, 4 blue; 13 green, 5 red, 9 blue
+Game 21: 1 blue, 1 green, 14 red; 2 blue; 5 green, 1 blue; 2 green, 11 red; 2 red, 4 green; 2 green, 16 red
+Game 22: 1 green, 10 red, 4 blue; 1 green, 4 blue, 8 red; 2 blue, 8 red; 4 green, 14 red; 1 blue, 5 red, 2 green
+Game 23: 17 green, 3 red, 16 blue; 9 green, 15 red; 3 red, 8 blue, 15 green
+Game 24: 1 green, 1 blue; 2 blue, 1 green, 2 red; 3 green, 1 blue, 1 red; 3 blue, 1 red; 2 green, 5 blue
+Game 25: 11 red, 2 green; 7 red, 6 green; 10 red, 1 blue, 8 green; 8 green, 4 red; 6 green, 10 red; 2 blue, 7 red
+Game 26: 2 green, 2 blue, 8 red; 1 blue, 1 red, 6 green; 9 red, 6 green, 2 blue
+Game 27: 5 red, 7 blue, 3 green; 3 blue, 1 red; 1 green, 1 red, 9 blue
+Game 28: 17 red, 5 green, 10 blue; 3 red, 14 blue, 1 green; 11 blue, 11 green
+Game 29: 16 red, 4 green, 4 blue; 3 green, 5 blue, 11 red; 7 blue, 8 red, 1 green; 1 green, 10 red, 4 blue; 2 green, 4 blue, 8 red
+Game 30: 3 green, 6 blue; 18 green, 3 blue; 14 green, 11 blue; 7 blue, 2 red, 17 green; 1 red, 12 green, 7 blue
+Game 31: 11 red, 2 green, 3 blue; 10 green, 11 blue, 15 red; 12 green, 17 blue, 5 red; 5 green, 2 red, 12 blue; 13 blue, 13 green, 4 red
+Game 32: 4 red, 2 blue, 5 green; 7 blue, 15 red; 11 blue, 4 green, 8 red
+Game 33: 18 blue, 3 green, 3 red; 3 green, 6 red; 2 blue, 4 red, 1 green; 3 green, 5 red, 3 blue
+Game 34: 5 red, 2 blue, 16 green; 9 red, 10 blue, 3 green; 8 red, 10 green, 13 blue
+Game 35: 7 blue, 5 red; 3 red, 1 blue; 4 blue, 7 red, 1 green; 4 red, 4 blue, 1 green; 3 blue, 7 red; 4 red, 1 green, 3 blue
+Game 36: 14 blue; 10 blue, 1 green; 10 blue, 4 green; 4 blue, 1 green, 1 red; 1 red, 6 blue, 4 green; 1 green, 1 red, 11 blue
+Game 37: 8 red, 13 green, 5 blue; 11 red, 16 green, 8 blue; 2 green, 10 blue, 11 red
+Game 38: 2 red, 1 blue, 10 green; 7 red, 6 blue, 14 green; 18 red, 1 blue, 5 green; 5 green, 5 blue, 13 red; 14 red, 5 green; 15 green, 13 red, 2 blue
+Game 39: 1 blue, 5 red; 9 red, 9 green; 4 blue, 10 green, 4 red; 3 green, 11 red, 1 blue; 2 green, 11 red, 4 blue
+Game 40: 9 blue, 4 green; 12 green, 1 red; 2 red, 15 green, 10 blue
+Game 41: 1 blue, 14 red, 12 green; 16 green, 2 blue, 3 red; 6 green, 9 red
+Game 42: 4 green, 13 red, 9 blue; 9 green, 9 red, 4 blue; 7 blue, 10 red, 9 green; 4 green, 18 blue, 14 red; 9 blue, 7 green, 2 red
+Game 43: 7 red, 6 blue; 4 green; 3 red, 6 green; 7 blue, 6 green, 8 red; 9 green, 7 blue, 7 red; 5 blue, 5 green, 6 red
+Game 44: 5 red, 8 blue; 2 red, 5 green; 6 green, 11 blue, 2 red; 1 green, 1 blue, 2 red
+Game 45: 3 blue, 7 green, 1 red; 5 red, 1 blue; 2 blue, 3 red; 8 green, 5 red
+Game 46: 4 red, 4 blue, 17 green; 1 blue, 5 green, 1 red; 1 red, 1 blue, 7 green; 18 green, 7 blue
+Game 47: 14 red, 3 green, 2 blue; 4 green, 4 red, 2 blue; 13 red, 1 blue
+Game 48: 5 red, 12 blue, 2 green; 3 blue, 1 red, 2 green; 10 blue, 7 red
+Game 49: 6 blue, 11 red; 11 red, 17 blue, 11 green; 16 blue, 12 green, 6 red
+Game 50: 12 blue, 3 green, 1 red; 3 green, 10 blue, 3 red; 11 blue, 3 red
+Game 51: 12 green, 1 blue, 8 red; 6 blue, 1 green, 9 red; 17 red, 5 blue; 7 blue, 9 green, 9 red; 13 green, 10 red, 2 blue
+Game 52: 5 blue, 1 green; 1 red, 1 green, 3 blue; 8 blue, 1 green; 1 green, 7 blue; 3 blue; 1 red, 6 blue
+Game 53: 11 green, 5 red; 16 green, 6 blue; 4 red, 19 green, 4 blue
+Game 54: 6 green, 4 blue, 8 red; 7 red, 6 green, 5 blue; 5 blue, 4 red; 5 blue, 14 red
+Game 55: 11 blue, 1 green; 2 red, 5 blue, 1 green; 10 blue, 1 green; 11 blue; 2 green, 2 red, 5 blue
+Game 56: 1 red, 9 blue, 1 green; 2 red, 8 blue; 1 green, 9 blue, 10 red; 5 blue, 1 green; 15 blue, 1 red; 12 blue, 4 red
+Game 57: 1 green, 17 blue; 10 blue, 2 green; 2 red, 16 blue; 6 green, 15 blue; 5 green; 2 red, 1 green
+Game 58: 2 blue, 4 green, 2 red; 5 blue; 5 red, 3 green, 2 blue; 5 red, 2 green, 5 blue; 7 green, 3 red, 4 blue; 4 red
+Game 59: 8 blue, 2 red, 2 green; 15 blue, 1 green, 4 red; 9 blue, 1 red; 3 green, 5 red, 5 blue
+Game 60: 3 red, 2 blue, 6 green; 1 red, 5 green; 2 blue, 10 green; 6 green, 2 red
+Game 61: 6 green, 4 blue; 1 red, 4 blue, 15 green; 1 blue, 16 green, 3 red; 6 red, 12 green, 2 blue; 3 red, 14 green, 1 blue; 3 red, 2 blue, 9 green
+Game 62: 1 green, 2 red; 4 red; 1 green, 4 red, 1 blue; 1 red, 1 blue, 1 green
+Game 63: 8 green, 4 red, 4 blue; 5 red, 4 blue, 8 green; 3 green, 1 blue
+Game 64: 5 blue, 2 green, 5 red; 3 green, 2 blue, 1 red; 6 blue, 2 red, 1 green; 2 green, 2 blue, 3 red; 3 blue, 1 red
+Game 65: 2 red, 7 green, 5 blue; 8 blue, 3 green, 4 red; 1 red, 6 green, 1 blue
+Game 66: 1 green, 6 red; 5 red, 1 green, 1 blue; 4 red, 1 blue, 1 green; 1 blue, 2 red, 1 green; 1 blue, 5 red; 1 blue, 8 red
+Game 67: 6 red, 8 blue, 8 green; 5 green, 2 red, 10 blue; 4 red, 1 green; 7 blue, 2 green
+Game 68: 7 green, 9 red, 15 blue; 4 green, 6 red, 3 blue; 1 blue, 5 green, 4 red; 9 green, 14 red, 6 blue; 8 blue, 15 red, 4 green; 7 green, 14 blue, 6 red
+Game 69: 4 green; 2 blue; 4 green, 8 blue, 11 red; 3 green, 9 red, 4 blue; 1 red, 2 blue; 2 green, 5 blue, 11 red
+Game 70: 6 blue, 16 green, 4 red; 6 green, 13 red, 2 blue; 7 green, 1 red, 2 blue; 8 green, 4 blue, 1 red; 10 red, 11 green
+Game 71: 6 blue, 7 red; 10 blue, 2 green, 4 red; 12 red, 10 blue, 1 green
+Game 72: 13 red, 13 blue; 6 red, 10 blue, 7 green; 3 blue, 5 green, 4 red; 8 green, 9 blue
+Game 73: 1 red, 1 green, 8 blue; 1 green, 8 blue; 2 green, 6 blue; 2 blue; 1 red, 12 blue; 12 blue, 3 green
+Game 74: 2 blue, 1 green, 1 red; 3 blue, 1 red, 1 green; 3 blue, 2 red; 3 blue, 1 red; 1 green
+Game 75: 10 red, 1 green, 4 blue; 12 red, 11 blue, 9 green; 18 green, 14 red, 5 blue
+Game 76: 4 blue, 3 green, 11 red; 4 blue, 1 green, 12 red; 11 blue, 2 green, 4 red; 2 blue, 2 green, 11 red; 12 red, 1 blue; 4 red, 2 green, 15 blue
+Game 77: 2 red, 10 blue, 6 green; 6 blue, 2 red, 8 green; 1 red, 9 green, 7 blue
+Game 78: 3 green, 10 red; 2 blue, 4 red, 3 green; 8 red, 3 blue, 4 green; 1 blue, 7 red
+Game 79: 4 green, 2 red; 2 red, 14 green; 1 blue, 5 green, 8 red; 4 red, 20 green; 3 green, 1 blue, 8 red; 4 green, 1 blue
+Game 80: 2 green; 3 green, 13 red, 10 blue; 6 blue, 10 red, 1 green; 10 green, 12 red, 3 blue; 10 blue, 17 red, 5 green; 8 red, 2 blue, 6 green
+Game 81: 4 green, 2 blue, 4 red; 16 red, 1 blue, 20 green; 7 blue, 10 red, 9 green; 7 blue, 2 green, 14 red
+Game 82: 4 blue, 8 green, 5 red; 14 red, 8 blue, 1 green; 11 red, 13 green
+Game 83: 2 blue, 2 green, 10 red; 10 green, 4 red, 3 blue; 11 green, 14 red, 4 blue; 2 blue, 11 red; 3 blue, 1 green, 4 red
+Game 84: 12 blue, 9 green, 10 red; 1 red, 6 green, 4 blue; 7 red, 3 green, 16 blue; 3 green, 3 blue
+Game 85: 2 red, 4 blue; 4 blue, 1 green, 6 red; 9 blue, 1 red; 1 green, 4 blue, 10 red; 5 green, 7 red, 17 blue
+Game 86: 2 red, 3 blue, 1 green; 2 blue, 2 red, 2 green; 10 blue, 2 green; 5 green, 4 red, 6 blue
+Game 87: 1 red, 7 blue, 9 green; 3 green, 2 blue; 1 red, 4 blue, 10 green; 10 green, 7 blue, 1 red; 6 blue, 9 green; 9 blue, 7 green, 1 red
+Game 88: 1 blue, 14 red, 9 green; 4 green, 9 red; 8 green, 1 blue, 10 red
+Game 89: 13 red, 1 green; 2 blue, 10 red; 1 green, 3 blue, 13 red; 1 green, 14 red, 3 blue; 2 green, 6 red; 1 green, 12 red
+Game 90: 1 red, 2 blue, 9 green; 1 blue, 3 red, 2 green; 10 green, 9 red; 1 red, 9 green, 4 blue; 3 blue, 13 green, 13 red
+Game 91: 2 red, 8 green, 8 blue; 3 green, 2 red, 6 blue; 5 green, 4 red
+Game 92: 8 green, 12 blue, 4 red; 7 red, 4 green; 4 blue, 7 green, 7 red; 7 blue, 5 green
+Game 93: 1 green, 1 red, 2 blue; 3 green, 1 red, 3 blue; 1 red, 8 blue; 1 green, 13 blue; 1 red, 4 blue, 4 green
+Game 94: 2 blue, 7 red, 17 green; 2 green, 1 blue, 5 red; 3 blue, 7 green, 1 red; 6 red, 1 blue, 1 green; 1 green, 1 blue, 1 red
+Game 95: 4 blue, 3 green, 4 red; 17 red, 2 blue; 6 blue, 16 green, 15 red; 7 blue, 17 green; 1 red, 3 green, 3 blue; 7 red, 14 green, 4 blue
+Game 96: 6 red, 3 blue; 7 green, 5 blue, 10 red; 9 green, 1 blue; 6 blue, 1 red, 12 green; 3 blue, 10 green
+Game 97: 3 green, 1 red, 13 blue; 1 red, 8 green, 2 blue; 1 green, 2 blue, 2 red; 1 red, 4 green, 9 blue
+Game 98: 1 green, 8 red, 7 blue; 8 blue, 8 red, 3 green; 1 blue, 2 red; 4 red, 7 blue; 3 green, 3 blue, 3 red
+Game 99: 9 blue, 14 red; 3 blue, 10 red, 5 green; 3 blue, 3 green, 6 red
+Game 100: 12 blue, 2 green; 2 green, 4 red, 13 blue; 9 blue, 1 red, 2 green; 2 green, 3 red, 1 blue

b-cube/src/main.rs

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+use std::cmp::max;
+
+static INPUT: &str = include_str!("input");
+
+fn main() {
+    println!("part1: {}", part1());
+    println!("part2: {}", part2());
+}
+
+struct Game {
+    id: usize,
+    samples: Vec<RevealedSample>,
+}
+
+struct RevealedSample {
+    red: Option<usize>,
+    green: Option<usize>,
+    blue: Option<usize>,
+}
+
+impl From<&str> for Game {
+    fn from(value: &str) -> Self {
+        let (id, rest) = value
+            .strip_prefix("Game ")
+            .unwrap()
+            .split_once(": ")
+            .unwrap();
+        let id = id.parse().unwrap();
+
+        let samples: Vec<_> = rest.split(';').map(RevealedSample::from).collect();
+
+        Self { id, samples }
+    }
+}
+
+impl From<&str> for RevealedSample {
+    fn from(value: &str) -> Self {
+        let mut red = None;
+        let mut green = None;
+        let mut blue = None;
+
+        value
+            .split(',')
+            .map(str::trim)
+            .map(|s| s.split_once(' ').unwrap())
+            .for_each(|(count, color)| match color {
+                "red" => red = Some(count.parse().unwrap()),
+                "green" => green = Some(count.parse().unwrap()),
+                "blue" => blue = Some(count.parse().unwrap()),
+                _ => panic!("the disco"),
+            });
+
+        Self { red, green, blue }
+    }
+}
+
+impl RevealedSample {
+    fn get_tuple(&self) -> (usize, usize, usize) {
+        (
+            self.red.unwrap_or(0),
+            self.green.unwrap_or(0),
+            self.blue.unwrap_or(0),
+        )
+    }
+}
+
+impl Game {
+    fn max_seen(&self) -> (usize, usize, usize) {
+        self.samples.iter().fold((0, 0, 0), |(r, g, b), sample| {
+            let (sr, sg, sb) = sample.get_tuple();
+            (max(r, sr), max(g, sg), max(b, sb))
+        })
+    }
+
+    fn is_possible(&self) -> bool {
+        let (r, g, b) = self.max_seen();
+        r <= 12 && g <= 13 && b <= 14
+    }
+}
+
+fn part1() -> usize {
+    INPUT
+        .lines()
+        .map(Game::from)
+        .filter(Game::is_possible)
+        .map(|game| game.id)
+        .sum()
+}
+
+fn part2() -> usize {
+    INPUT
+        .lines()
+        .map(Game::from)
+        .map(|game| game.max_seen())
+        .map(|(r, g, b)| r * g * b)
+        .sum()
+}