Cargo.lock

@@ -15,19 +15,9 @@ dependencies = [
  "dotenvy",
  "indoc",
  "itertools",
- "regex",
  "ureq",
 ]
 
-[[package]]
-name = "aho-corasick"
-version = "1.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "base64"
 version = "0.22.1"
@@ -283,12 +273,6 @@ version = "0.4.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
 
-[[package]]
-name = "memchr"
-version = "2.7.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
-
 [[package]]
 name = "miniz_oxide"
 version = "0.8.0"
@@ -328,35 +312,6 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "regex"
-version = "1.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b544ef1b4eac5dc2db33ea63606ae9ffcfac26c1416a2806ae0bf5f56b201191"
-dependencies = [
- "aho-corasick",
- "memchr",
- "regex-automata",
- "regex-syntax",
-]
-
-[[package]]
-name = "regex-automata"
-version = "0.4.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "809e8dc61f6de73b46c85f4c96486310fe304c434cfa43669d7b40f711150908"
-dependencies = [
- "aho-corasick",
- "memchr",
- "regex-syntax",
-]
-
-[[package]]
-name = "regex-syntax"
-version = "0.8.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
-
 [[package]]
 name = "ring"
 version = "0.17.8"

Cargo.toml

@@ -7,5 +7,4 @@ edition = "2021"
 dotenvy = "0.15.7"
 indoc = "2.0.5"
 itertools = "0.13.0"
-regex = "1.11.1"
 ureq = "2.11.0"

src/solutions/day_02.rs

@@ -6,7 +6,7 @@ pub struct Day02;
 
 impl Solution for Day02 {
     fn name(&self) -> &'static str {
-        "Red-Nosed Reports"
+        ""
     }
 
     fn part_a(&self, input: &str) -> Answer {

src/solutions/day_03.rs

@@ -1,54 +0,0 @@
-use itertools::Itertools;
-use regex::Regex;
-
-use crate::common::{Answer, Solution};
-
-pub struct Day03;
-
-impl Solution for Day03 {
-    fn name(&self) -> &'static str {
-        "Mull It Over"
-    }
-
-    fn part_a(&self, input: &str) -> Answer {
-        let re = Regex::new(r"mul\((\d+),(\d+)\)").unwrap();
-
-        let sum = re
-            .captures_iter(input)
-            .map(|c| c.extract())
-            .map(|(_, [a, b])| a.parse::<u64>().unwrap() * b.parse::<u64>().unwrap())
-            .sum::<u64>();
-
-        Answer::Number(sum)
-    }
-
-    fn part_b(&self, input: &str) -> Answer {
-        let without_donts = input
-            .split("do()")
-            .map(|s| s.split_once("don't()").map(|(b, _)| b).unwrap_or(s))
-            .join("");
-
-        self.part_a(&without_donts)
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::Day03;
-    use crate::common::Solution;
-
-    const INPUT_A: &str = "xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))";
-
-    const INPUT_B: &str =
-        "xmul(2,4)&mul[3,7]!^don't()_mul(5,5)+mul(32,64](mul(11,8)undo()?mul(8,5))";
-
-    #[test]
-    fn part_a() {
-        assert_eq!(Day03.part_a(INPUT_A), 161.into());
-    }
-
-    #[test]
-    fn part_b() {
-        assert_eq!(Day03.part_b(INPUT_B), 48.into());
-    }
-}

src/solutions/mod.rs

@@ -2,6 +2,5 @@ use crate::common::Solution;
 
 mod day_01;
 mod day_02;
-mod day_03;
 
-pub const SOLUTIONS: &[&dyn Solution] = &[&day_01::Day01, &day_02::Day02, &day_03::Day03];
+pub const SOLUTIONS: &[&dyn Solution] = &[&day_01::Day01, &day_02::Day02];