chore: common repo

chore: break out part a

chore: refactor to include b mode flag

finish day 2

ignore

11 files changed, 1240 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3f9177e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+input
diff --git a/aoc01/.gitignore b/aoc01/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/aoc01/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/aoc01/Cargo.lock b/aoc01/Cargo.lock
new file mode 100644
index 0000000..295f643
--- /dev/null
+++ b/aoc01/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aoc01"
+version = "0.1.0"
diff --git a/aoc01/Cargo.toml b/aoc01/Cargo.toml
new file mode 100644
index 0000000..48329c8
--- /dev/null
+++ b/aoc01/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "aoc01"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/aoc01/input b/aoc01/input
new file mode 100644
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--- /dev/null
+++ b/aoc01/input
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diff --git a/aoc01/src/main.rs b/aoc01/src/main.rs
new file mode 100644
index 0000000..62db893
--- /dev/null
+++ b/aoc01/src/main.rs
@@ -0,0 +1,58 @@
+use std::{env::args, io::stdin};
+
+const NUM_WORDS: [(&str, &str); 9] = [
+    ("one", "1"),
+    ("two", "2"),
+    ("three", "3"),
+    ("four", "4"),
+    ("five", "5"),
+    ("six", "6"),
+    ("seven", "7"),
+    ("eight", "8"),
+    ("nine", "9"),
+];
+
+fn word_to_digit(word: &str) -> &str {
+    match word {
+        "one" => "1",
+        "two" => "2",
+        "three" => "3",
+        "four" => "4",
+        "five" => "5",
+        "six" => "6",
+        "seven" => "7",
+        "eight" => "8",
+        "nine" => "9",
+        num => num,
+    }
+}
+
+fn get_digits(line: &str) -> u32 {
+    let mut found = Vec::new();
+    let find_words = args().any(|b| b == "-b");
+
+    for (word, num) in NUM_WORDS {
+        found.extend(line.match_indices(num));
+
+        if find_words {
+            found.extend(line.match_indices(word));
+        }
+    }
+
+    found.sort();
+
+    let first = word_to_digit(found.first().unwrap().1);
+    let last = word_to_digit(found.last().unwrap().1);
+
+    let combined = format!("{first}{last}");
+    combined.parse().unwrap()
+}
+
+fn main() {
+    let i: u32 = stdin()
+        .lines()
+        .filter_map(|l| Some(get_digits(&l.ok()?)))
+        .sum();
+
+    println!("{i}");
+}
diff --git a/aoc02/.gitignore b/aoc02/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/aoc02/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/aoc02/Cargo.lock b/aoc02/Cargo.lock
new file mode 100644
index 0000000..1590d3e
--- /dev/null
+++ b/aoc02/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aoc02"
+version = "0.1.0"
diff --git a/aoc02/Cargo.toml b/aoc02/Cargo.toml
new file mode 100644
index 0000000..87ba57d
--- /dev/null
+++ b/aoc02/Cargo.toml
@@ -0,0 +1,4 @@
+[package]
+name = "aoc02"
+version = "0.1.0"
+edition = "2021"
diff --git a/aoc02/input b/aoc02/input
new file mode 100644
index 0000000..df26935
--- /dev/null
+++ b/aoc02/input
@@ -0,0 +1,100 @@
+Game 1: 1 green, 4 blue; 1 blue, 2 green, 1 red; 1 red, 1 green, 2 blue; 1 green, 1 red; 1 green; 1 green, 1 blue, 1 red
+Game 2: 2 blue, 2 red, 6 green; 1 red, 6 green, 7 blue; 10 green, 8 blue, 1 red; 2 green, 18 blue, 2 red; 14 blue, 3 green, 1 red; 8 green, 1 red, 9 blue
+Game 3: 6 green, 5 blue, 9 red; 4 blue, 1 green, 13 red; 9 green, 14 red, 1 blue
+Game 4: 14 green, 3 blue, 16 red; 20 red; 4 green, 2 red, 1 blue; 10 blue, 11 green, 18 red; 3 red, 3 blue, 6 green; 2 green, 18 red, 9 blue
+Game 5: 5 green, 4 blue; 1 red, 3 blue, 2 green; 4 green, 2 red, 15 blue; 11 blue, 8 green, 4 red; 4 red, 3 green; 4 red, 3 green, 7 blue
+Game 6: 6 blue, 10 green; 2 red, 6 green, 2 blue; 4 red, 4 blue, 1 green; 2 blue, 7 green, 2 red
+Game 7: 14 green, 3 red, 2 blue; 5 blue, 3 green, 2 red; 1 green, 3 blue
+Game 8: 7 red; 3 blue, 9 red, 1 green; 5 green, 5 blue, 7 red; 1 red, 2 blue
+Game 9: 3 green, 4 blue, 1 red; 3 blue, 12 green, 18 red; 7 green, 9 red, 8 blue; 2 blue, 10 red, 12 green; 4 blue, 1 red, 1 green; 4 blue, 6 green, 6 red
+Game 10: 2 blue, 4 green, 2 red; 7 green, 4 red; 5 red, 8 green
+Game 11: 1 blue, 10 green, 15 red; 1 blue, 2 green, 2 red; 5 green, 10 blue, 8 red; 13 red, 7 blue; 1 red, 9 green, 4 blue; 9 blue, 9 red, 8 green
+Game 12: 1 green, 10 red, 3 blue; 14 red, 1 green, 4 blue; 6 red, 3 green, 12 blue; 13 blue, 1 green, 18 red; 4 green, 14 red, 7 blue
+Game 13: 1 red, 3 green; 2 green, 1 red, 5 blue; 1 blue; 1 green, 7 blue, 1 red; 1 red, 2 green, 7 blue
+Game 14: 7 blue, 9 red, 1 green; 8 red, 2 blue; 11 red, 18 blue, 4 green; 2 blue, 3 green, 1 red; 1 green, 8 red, 9 blue; 2 blue, 8 red, 1 green
+Game 15: 8 blue, 3 green, 15 red; 13 red, 10 blue; 2 red
+Game 16: 1 green, 1 red; 1 blue, 2 green, 2 red; 1 blue, 4 red, 1 green; 3 green; 2 blue, 3 green, 4 red
+Game 17: 1 green, 3 red, 14 blue; 1 red, 2 blue, 2 green; 3 red
+Game 18: 1 red, 2 green, 8 blue; 2 blue, 14 red; 4 blue, 2 red, 2 green; 6 red
+Game 19: 2 red, 11 blue, 18 green; 3 red, 6 green, 3 blue; 7 green, 1 red, 10 blue
+Game 20: 10 red, 1 blue, 4 green; 4 green, 3 blue; 10 green, 13 red, 4 blue; 2 red, 7 green; 4 red, 3 blue, 5 green; 13 red, 1 green, 4 blue
+Game 21: 20 red, 4 green, 5 blue; 10 red, 11 green, 4 blue; 1 red, 8 blue, 14 green; 11 green, 8 blue, 15 red; 8 blue, 2 green, 13 red
+Game 22: 2 red, 11 blue, 4 green; 1 blue, 3 red, 6 green; 6 green, 1 red, 1 blue; 4 green, 7 blue, 3 red; 11 blue, 6 green, 4 red
+Game 23: 6 green, 3 red, 1 blue; 17 green, 11 red; 1 red, 2 blue, 13 green; 13 green, 19 red
+Game 24: 1 blue; 12 red, 1 blue; 1 red; 12 red, 1 green, 1 blue; 11 red, 1 blue; 12 red, 1 green
+Game 25: 12 blue, 6 red, 3 green; 8 green, 14 blue; 11 green, 5 blue, 6 red; 4 red, 12 blue, 8 green
+Game 26: 15 red, 13 green, 9 blue; 9 blue, 8 green, 7 red; 2 green, 6 red, 3 blue; 1 blue, 7 red, 3 green; 13 blue, 4 green, 18 red
+Game 27: 9 blue, 5 red; 15 red, 12 blue, 3 green; 12 red, 12 blue, 1 green
+Game 28: 18 red, 4 green; 4 green, 6 red; 1 blue, 6 green, 19 red; 9 green, 17 red; 4 green, 5 blue, 18 red
+Game 29: 7 green, 6 red, 6 blue; 6 blue, 19 red, 4 green; 4 green, 4 blue, 13 red; 5 blue, 15 red, 10 green; 2 green, 6 blue, 5 red; 8 red, 10 green, 6 blue
+Game 30: 1 green, 13 red, 12 blue; 1 red, 2 blue; 11 blue, 1 red, 1 green
+Game 31: 8 green, 18 blue, 17 red; 4 red, 8 green, 6 blue; 9 blue, 7 green; 3 green, 1 blue, 12 red; 5 red, 10 blue, 11 green
+Game 32: 17 red, 17 green, 7 blue; 18 red, 16 green; 1 blue
+Game 33: 16 blue, 3 red; 9 blue, 1 red, 2 green; 3 green, 7 blue; 1 green, 4 red; 3 green, 1 red, 8 blue; 5 blue
+Game 34: 5 blue, 8 red, 1 green; 9 red, 10 blue, 7 green; 1 green, 14 blue; 8 blue, 4 red, 10 green; 15 blue, 8 green, 7 red; 2 red, 6 green, 3 blue
+Game 35: 13 red, 9 blue; 7 blue, 16 red, 10 green; 4 red, 6 blue; 3 blue, 12 green, 7 red; 8 blue, 6 red; 10 blue, 3 green, 2 red
+Game 36: 1 blue, 9 red, 2 green; 11 red, 3 blue, 2 green; 2 green, 6 red; 8 green, 11 red, 3 blue; 4 green, 7 blue, 11 red; 9 green, 8 red, 2 blue
+Game 37: 8 green, 3 blue, 4 red; 14 blue, 10 green, 3 red; 19 green, 2 blue, 7 red
+Game 38: 2 green, 3 red, 3 blue; 3 green, 9 red; 13 blue, 8 red; 6 red, 5 green, 13 blue
+Game 39: 8 red, 5 blue; 4 green, 5 blue, 3 red; 18 red, 2 green, 6 blue; 2 green, 5 blue, 17 red; 1 green, 2 red; 5 green, 6 blue
+Game 40: 12 red, 4 blue, 1 green; 11 green, 20 blue, 4 red; 10 blue, 4 red
+Game 41: 2 green, 2 blue; 2 red, 2 green; 2 green, 2 blue, 10 red
+Game 42: 6 green, 3 blue; 2 red, 2 green, 1 blue; 3 blue, 5 green, 6 red; 6 red; 1 blue, 6 green, 12 red
+Game 43: 1 blue, 4 green; 1 blue; 2 blue, 8 red, 2 green; 2 blue, 1 red, 4 green; 1 blue, 4 red, 4 green; 4 green, 7 red
+Game 44: 8 green, 9 red; 1 red, 2 blue, 13 green; 4 blue, 8 green, 17 red; 13 red, 13 green; 1 red, 9 green; 19 red, 3 green, 3 blue
+Game 45: 10 blue, 2 red, 1 green; 6 green, 5 red, 8 blue; 3 blue, 1 red; 4 green, 10 blue, 4 red
+Game 46: 3 red, 8 blue; 6 blue, 7 green, 6 red; 6 green, 1 blue, 7 red; 8 red, 1 green, 5 blue; 9 red, 12 blue, 10 green; 7 green, 5 red, 1 blue
+Game 47: 5 red; 2 blue, 2 green, 5 red; 3 green, 7 red; 14 red, 3 green, 2 blue
+Game 48: 7 blue, 12 green, 2 red; 11 green, 10 blue, 1 red; 1 red, 13 blue, 2 green; 14 green, 2 red, 9 blue; 2 red, 12 green, 3 blue; 2 red, 7 blue
+Game 49: 4 green, 5 blue; 9 blue; 10 blue, 5 green, 2 red; 10 blue, 2 red, 2 green; 1 red, 1 green, 4 blue; 2 blue
+Game 50: 2 red, 2 blue, 7 green; 7 red, 9 green, 3 blue; 5 red, 10 green
+Game 51: 15 red, 9 blue, 4 green; 5 red, 2 blue, 15 green; 4 blue, 3 green, 20 red; 12 green, 1 red, 10 blue; 10 green, 5 blue, 13 red; 9 red, 10 green, 11 blue
+Game 52: 3 blue, 12 green, 1 red; 6 green; 1 red, 8 green; 1 blue, 1 green, 1 red
+Game 53: 10 green, 7 red, 12 blue; 9 blue, 6 green, 2 red; 8 green, 5 blue, 5 red; 7 blue, 16 green, 11 red; 6 red, 8 blue, 13 green
+Game 54: 10 green, 6 blue, 3 red; 6 green, 2 red, 8 blue; 9 blue, 11 green, 2 red; 10 green, 1 blue, 3 red
+Game 55: 4 blue, 1 red; 3 red, 7 blue; 12 red, 4 green, 8 blue; 3 green, 5 blue, 1 red; 13 blue, 12 red, 1 green
+Game 56: 12 blue, 15 green; 1 green, 7 red, 11 blue; 5 green, 9 blue, 1 red; 8 red, 5 green, 6 blue
+Game 57: 4 green, 11 blue, 18 red; 14 blue, 14 red, 16 green; 7 red, 15 green, 3 blue; 18 red, 20 green, 8 blue; 12 blue, 9 red, 16 green
+Game 58: 10 blue, 9 green, 8 red; 13 green, 6 blue, 8 red; 8 green, 4 red; 4 blue, 1 red, 18 green; 7 red, 10 green, 10 blue; 15 blue, 10 green, 3 red
+Game 59: 17 green, 2 blue, 2 red; 2 blue, 1 red, 8 green; 14 green, 1 red, 1 blue; 15 green, 3 blue, 2 red; 2 blue, 8 green, 1 red; 1 blue, 1 red, 8 green
+Game 60: 1 green, 1 blue, 1 red; 4 blue, 3 red, 2 green; 13 green; 2 blue, 2 red, 8 green; 4 red, 12 green, 4 blue; 4 green, 4 blue, 4 red
+Game 61: 3 blue, 7 red; 5 blue, 8 red, 1 green; 1 blue, 8 red; 10 blue, 2 red, 1 green; 1 green, 5 blue, 2 red
+Game 62: 10 red, 2 green; 8 blue, 7 red, 2 green; 4 green, 2 blue, 10 red
+Game 63: 1 green, 3 blue, 5 red; 6 green, 5 blue, 2 red; 3 blue, 7 red
+Game 64: 6 red, 20 blue; 4 red, 3 blue, 2 green; 3 green, 19 blue, 6 red; 2 green, 6 blue, 3 red; 13 blue, 5 green, 5 red
+Game 65: 6 red, 9 blue, 20 green; 6 red, 16 green, 4 blue; 12 red, 6 green, 5 blue
+Game 66: 2 blue, 5 red, 4 green; 13 blue, 2 green; 1 green, 6 blue
+Game 67: 4 green, 5 blue, 2 red; 1 red, 14 blue, 6 green; 1 green, 14 red, 5 blue; 18 red, 16 blue; 15 blue, 8 red, 18 green; 1 green, 18 red, 6 blue
+Game 68: 1 blue, 9 red, 7 green; 7 red, 1 blue, 6 green; 5 green, 1 blue, 8 red
+Game 69: 12 green, 3 blue, 4 red; 9 green, 8 red, 7 blue; 4 blue, 5 red, 10 green; 4 red, 5 green, 7 blue; 9 green, 4 red, 2 blue; 3 green, 13 blue, 1 red
+Game 70: 9 red, 1 green, 8 blue; 11 green, 13 blue, 12 red; 3 blue, 5 green, 8 red; 1 red, 14 blue
+Game 71: 10 blue; 2 green, 8 blue, 9 red; 5 red, 1 blue
+Game 72: 3 green, 5 blue, 5 red; 1 blue, 1 red, 2 green; 4 red, 4 blue, 1 green; 5 blue, 4 red, 1 green; 6 blue, 3 green, 5 red; 5 blue, 1 red, 4 green
+Game 73: 3 red, 1 green, 1 blue; 7 green, 2 red, 1 blue; 2 green, 1 blue, 3 red; 1 red, 4 green, 1 blue; 3 red, 5 green
+Game 74: 5 blue, 1 red, 4 green; 3 red, 2 green; 4 red, 6 blue; 2 red, 2 blue; 1 green, 4 red, 8 blue; 5 blue, 4 red
+Game 75: 3 red, 5 blue, 3 green; 9 green, 6 blue, 7 red; 2 green, 3 red, 12 blue; 14 green, 4 blue, 10 red
+Game 76: 1 blue, 7 red, 1 green; 6 red, 1 blue, 2 green; 4 red, 2 green; 3 red, 1 blue; 16 red, 1 green
+Game 77: 3 red, 10 blue, 1 green; 4 red, 7 blue, 3 green; 7 blue, 6 green, 7 red; 5 green, 15 blue, 7 red; 12 green, 5 red
+Game 78: 6 red, 10 blue, 15 green; 6 green, 11 red, 4 blue; 6 blue, 8 red; 4 blue, 7 red, 2 green; 11 green, 7 red, 11 blue; 3 blue, 14 green, 6 red
+Game 79: 14 red, 6 green, 4 blue; 13 red, 6 blue; 6 red, 13 green, 4 blue
+Game 80: 8 red, 2 blue, 8 green; 6 red, 10 green, 4 blue; 3 red, 9 green; 2 green, 8 blue, 7 red; 7 blue, 3 red, 11 green; 1 red, 12 green, 8 blue
+Game 81: 9 red, 4 blue, 11 green; 1 blue, 4 red, 2 green; 5 red; 3 blue, 2 red, 2 green; 14 red, 12 green
+Game 82: 5 green; 2 blue; 2 red; 1 blue, 2 red, 11 green; 8 green, 2 red, 1 blue
+Game 83: 3 green, 7 red, 6 blue; 7 red, 7 green, 11 blue; 7 blue, 13 green, 7 red; 12 blue, 10 red, 2 green; 1 green, 11 red, 7 blue; 12 blue, 9 red, 9 green
+Game 84: 5 blue, 1 green; 16 green, 4 blue, 8 red; 7 red, 5 blue, 16 green
+Game 85: 9 green, 20 blue, 7 red; 19 blue, 14 red, 2 green; 10 green, 2 red, 10 blue
+Game 86: 1 green, 3 red, 5 blue; 9 red, 2 blue, 6 green; 8 green, 14 red, 3 blue; 18 green, 2 blue, 7 red; 2 blue, 10 red, 14 green; 17 green, 4 blue, 12 red
+Game 87: 4 green, 8 red, 13 blue; 7 red, 13 blue, 4 green; 1 green, 8 blue
+Game 88: 9 blue, 11 red; 5 green, 7 blue, 12 red; 10 red, 2 green, 1 blue; 2 blue, 5 red, 5 green; 7 red, 6 green, 9 blue; 1 green, 10 red, 5 blue
+Game 89: 7 red, 2 green, 1 blue; 1 blue, 2 green; 6 red, 1 green; 7 red, 1 blue; 3 green, 3 red
+Game 90: 8 blue, 2 red, 3 green; 9 green, 4 blue, 3 red; 7 green, 11 blue, 2 red; 13 green, 12 blue, 8 red; 10 blue, 2 green; 5 green, 1 red, 9 blue
+Game 91: 2 red, 2 green, 4 blue; 5 blue, 2 red, 16 green; 11 green; 3 blue, 2 red, 8 green; 4 green, 3 blue
+Game 92: 8 red, 12 blue, 3 green; 11 red, 10 blue, 6 green; 14 red, 8 green, 14 blue
+Game 93: 3 green, 2 red, 3 blue; 3 green, 3 red, 1 blue; 2 blue, 16 red, 3 green; 2 green; 5 green, 2 blue, 2 red
+Game 94: 5 red, 2 green; 9 red, 3 blue; 2 green, 2 blue, 5 red; 3 blue, 8 red, 2 green; 8 red, 1 blue, 1 green
+Game 95: 3 blue, 4 green, 7 red; 7 red, 1 green, 15 blue; 6 blue, 2 green, 7 red
+Game 96: 2 blue, 1 red, 6 green; 7 blue, 8 green; 1 red, 7 green; 2 green, 14 blue, 1 red; 3 blue, 1 red, 7 green; 4 blue, 11 green
+Game 97: 2 red, 9 blue, 8 green; 3 green, 5 blue; 6 green, 1 red, 9 blue; 2 red, 13 green, 1 blue; 2 green, 2 red, 2 blue
+Game 98: 2 blue, 1 green, 1 red; 4 blue, 5 red, 1 green; 4 blue, 3 red, 2 green
+Game 99: 17 red, 2 blue, 4 green; 4 green, 8 red, 6 blue; 5 red
+Game 100: 6 red, 4 green; 3 red, 2 blue, 9 green; 1 blue, 5 green, 14 red; 1 blue, 2 red, 2 green; 9 red, 1 blue, 14 green; 2 blue, 11 green, 8 red
diff --git a/aoc02/src/main.rs b/aoc02/src/main.rs
new file mode 100644
index 0000000..b8b5eae
--- /dev/null
+++ b/aoc02/src/main.rs
@@ -0,0 +1,53 @@
+use std::{collections::BTreeMap, env::args, io::stdin};
+
+fn rounds_are_possible(rounds: &str) -> bool {
+    !rounds
+        .split(&[';', ','])
+        .map(|round| round.trim().split_once(' ').expect("bad input whitespace"))
+        .map(|(score, color)| (score.parse::<u32>().expect("input score not digit"), color))
+        .map(|(score, color)| {
+            color == "red" && score > 12
+                || color == "blue" && score > 14
+                || color == "green" && score > 13
+        })
+        .any(|p| p)
+}
+
+fn rounds_power(rounds: &str) -> u32 {
+    let mut maximums = BTreeMap::new();
+
+    for (score, color) in rounds
+        .split(&[';', ','])
+        .map(|round| round.trim().split_once(' ').expect("bad input whitespace"))
+        .map(|(score, color)| (score.parse::<u32>().expect("input score not digit"), color))
+    {
+        if &score > maximums.get(color).unwrap_or(&0) {
+            maximums.insert(color, score);
+        }
+    }
+
+    maximums.values().product()
+}
+
+fn main() {
+    let b_mode = args().any(|b| b == "-b");
+    let mut lines = stdin().lines();
+    let mut possibilities = Vec::new();
+
+    while let Some(Ok(line)) = lines.next() {
+        let line = line
+            .strip_prefix("Game ")
+            .expect("input missing game prefix");
+        let (id, rounds) = line
+            .split_once(": ")
+            .expect("input missing colon separator");
+
+        if !b_mode && rounds_are_possible(rounds) {
+            possibilities.push(id.parse::<u32>().expect("input id not integers"));
+        } else if b_mode {
+            possibilities.push(rounds_power(rounds));
+        }
+    }
+
+    println!("{}", possibilities.iter().sum::<u32>());
+}