From 4b8e2ab4cc57320646a5398c070444ef8c8c17ea Mon Sep 17 00:00:00 2001
From: Tobias Berger <toby@tobot.dev>
Date: Sat, 2 Dec 2023 13:22:12 +0100
Subject: [PATCH] Rust Day 2 Part 1

---
 rust/Cargo.lock                 |   2 +-
 rust/Cargo.toml                 |   7 ++-
 rust/src/day02/input.txt        | 100 ++++++++++++++++++++++++++++++
 rust/src/day02/main.rs          |  11 ++++
 rust/src/day02/part_1.rs        | 104 ++++++++++++++++++++++++++++++++
 rust/src/day02/part_2.rs        |  24 ++++++++
 rust/src/day02/sample_input.txt |   5 ++
 7 files changed, 251 insertions(+), 2 deletions(-)
 create mode 100644 rust/src/day02/input.txt
 create mode 100644 rust/src/day02/main.rs
 create mode 100644 rust/src/day02/part_1.rs
 create mode 100644 rust/src/day02/part_2.rs
 create mode 100644 rust/src/day02/sample_input.txt

diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 8240683..7f3dc66 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -4,4 +4,4 @@ version = 3
 
 [[package]]
 name = "advent-of-code"
-version = "23.1.2"
+version = "23.2.1"
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index 4534212..bbd8903 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -1,7 +1,8 @@
 [package]
 name = "advent-of-code"
-version = "23.1.2"
+version = "23.2.1"
 edition = "2021"
+default-run = "day02"
 
 [profile.release]
 strip = "symbols"
@@ -27,3 +28,7 @@ test = false
 [[bin]]
 name = "day01"
 path = "src/day01/main.rs"
+
+[[bin]]
+name = "day02"
+path = "src/day02/main.rs"
diff --git a/rust/src/day02/input.txt b/rust/src/day02/input.txt
new file mode 100644
index 0000000..e25a721
--- /dev/null
+++ b/rust/src/day02/input.txt
@@ -0,0 +1,100 @@
+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
\ No newline at end of file
diff --git a/rust/src/day02/main.rs b/rust/src/day02/main.rs
new file mode 100644
index 0000000..333bf98
--- /dev/null
+++ b/rust/src/day02/main.rs
@@ -0,0 +1,11 @@
+const INPUT: &str = include_str!("input.txt");
+
+mod part_1;
+use part_1::part_1;
+mod part_2;
+use part_2::part_2;
+
+fn main() {
+    println!("{}", part_1(INPUT));
+    println!("{}", part_2(INPUT));
+}
diff --git a/rust/src/day02/part_1.rs b/rust/src/day02/part_1.rs
new file mode 100644
index 0000000..bd65caf
--- /dev/null
+++ b/rust/src/day02/part_1.rs
@@ -0,0 +1,104 @@
+#[derive(Default, Debug)]
+struct CubeCounts {
+    red: u16,
+    green: u16,
+    blue: u16,
+}
+impl std::fmt::Display for CubeCounts {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+        write!(f, "({},{},{})", self.red, self.green, self.blue)
+    }
+}
+
+impl std::ops::Add<CubeCounts> for CubeCounts {
+    type Output = Self;
+
+    fn add(self, rhs: CubeCounts) -> Self::Output {
+        Self {
+            red: self.red + rhs.red,
+            green: self.green + rhs.green,
+            blue: self.blue + rhs.blue,
+        }
+    }
+}
+
+impl std::iter::Sum<CubeCounts> for CubeCounts {
+    fn sum<I: Iterator<Item = CubeCounts>>(iter: I) -> Self {
+        iter.fold(CubeCounts::default(), |acc, x| acc + x)
+    }
+}
+
+pub(crate) fn part_1(input: &'static str) -> usize {
+    let id_sum = input
+        .lines()
+        .enumerate()
+        .filter_map(|(game_id, line)| {
+            let game_start_index = line.find(":").expect("Every line should have a ': '") + 2;
+
+            let game = &line[game_start_index..];
+
+            let groups = game.split("; ");
+
+            let game_counts = groups
+                .map(|group| {
+                    let color_counts = group.split(", ");
+
+                    let group_counts =
+                        color_counts.map(|color_count| {
+                            let (count, color) = color_count
+                                .split_once(' ')
+                                .expect("Every color count should have one space");
+
+                            let count = count.parse().expect(
+                        format!("Every color count should be a valid number - `{count}` `{color}`")
+                            .as_str(),
+                    );
+
+                            match color {
+                                "red" => CubeCounts {
+                                    red: count,
+                                    ..Default::default()
+                                },
+                                "green" => CubeCounts {
+                                    green: count,
+                                    ..Default::default()
+                                },
+                                "blue" => CubeCounts {
+                                    blue: count,
+                                    ..Default::default()
+                                },
+                                _ => unreachable!(),
+                            }
+                        });
+                    group_counts.sum::<CubeCounts>()
+                })
+                .reduce(|acc, cube_count| CubeCounts {
+                    red: u16::max(acc.red, cube_count.red),
+                    green: u16::max(acc.green, cube_count.green),
+                    blue: u16::max(acc.blue, cube_count.blue),
+                })
+                .expect("At least one group should exist in each game");
+            if game_counts.red <= 12 && game_counts.green <= 13 && game_counts.blue <= 14 {
+                Some(game_id + 1)
+            } else {
+                None
+            }
+        })
+        .sum();
+    id_sum
+}
+
+#[cfg(test)]
+mod tests {
+    const SAMPLE_INPUT: &str = include_str!("sample_input.txt");
+
+    #[test]
+    fn test_with_sample_solution() {
+        assert_eq!(super::part_1(SAMPLE_INPUT), 8)
+    }
+
+    #[test]
+    fn test_with_solution() {
+        assert_eq!(super::part_1(crate::INPUT), 2449);
+    }
+}
diff --git a/rust/src/day02/part_2.rs b/rust/src/day02/part_2.rs
new file mode 100644
index 0000000..928ee24
--- /dev/null
+++ b/rust/src/day02/part_2.rs
@@ -0,0 +1,24 @@
+pub(crate) fn part_2(_input: &'static str) -> u64 {
+    todo!("Part 2")
+}
+
+#[cfg(test)]
+mod tests {
+    const SAMPLE_INPUT: &str = include_str!("sample_input.txt");
+
+    #[test]
+    fn test_with_sample_solution() {
+        assert_eq!(
+            super::part_2(SAMPLE_INPUT),
+            todo!("Add result from example part 2")
+        );
+    }
+
+    #[test]
+    fn test_with_solution() {
+        assert_eq!(
+            super::part_2(crate::INPUT),
+            todo!("Add result for solved part 2")
+        );
+    }
+}
diff --git a/rust/src/day02/sample_input.txt b/rust/src/day02/sample_input.txt
new file mode 100644
index 0000000..1cd7d33
--- /dev/null
+++ b/rust/src/day02/sample_input.txt
@@ -0,0 +1,5 @@
+Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green
+Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue
+Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red
+Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red
+Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green
\ No newline at end of file