diff --git a/Cargo.lock b/Cargo.lock
index 1ff9aa1..1422a84 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8,14 +8,12 @@ version = "0.9.2"
 dependencies = [
  "hashlink",
  "itertools",
- "lazy_static",
  "nom",
  "num-traits",
  "ordered-float",
  "pico-args",
  "rstar",
  "strum",
- "strum_macros",
  "tinyvec",
 ]
 
@@ -31,21 +29,6 @@ dependencies = [
  "zerocopy",
 ]
 
-[[package]]
-name = "allocator-api2"
-version = "0.2.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0942ffc6dcaadf03badf6e6a2d0228460359d5e34b57ccdc720b7382dfbd5ec5"
-
-[[package]]
-name = "atomic-polyfill"
-version = "1.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8cf2bce30dfe09ef0bfaef228b9d414faaf7e563035494d7fe092dba54b300f4"
-dependencies = [
- "critical-section",
-]
-
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -64,12 +47,6 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
-[[package]]
-name = "critical-section"
-version = "1.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7059fff8937831a9ae6f0fe4d658ffabf58f2ca96aa9dec1c889f936f705f216"
-
 [[package]]
 name = "either"
 version = "1.9.0"
@@ -78,9 +55,9 @@ checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
 
 [[package]]
 name = "hash32"
-version = "0.2.1"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0c35f58762feb77d74ebe43bdbc3210f09be9fe6742234d573bacc26ed92b67"
+checksum = "47d60b12902ba28e2730cd37e95b8c9223af2808df9e902d4df49588d1470606"
 dependencies = [
  "byteorder",
 ]
@@ -92,68 +69,48 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "290f1a1d9242c78d09ce40a5e87e7554ee637af1351968159f4952f028f75604"
 dependencies = [
  "ahash",
- "allocator-api2",
 ]
 
 [[package]]
 name = "hashlink"
-version = "0.8.4"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8094feaf31ff591f651a2664fb9cfd92bba7a60ce3197265e9482ebe753c8f7"
+checksum = "6ba4ff7128dee98c7dc9794b6a411377e1404dba1c97deb8d1a55297bd25d8af"
 dependencies = [
  "hashbrown",
 ]
 
 [[package]]
 name = "heapless"
-version = "0.7.17"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cdc6457c0eb62c71aac4bc17216026d8410337c4126773b9c5daba343f17964f"
+checksum = "0bfb9eb618601c89945a70e254898da93b13be0388091d42117462b265bb3fad"
 dependencies = [
- "atomic-polyfill",
  "hash32",
- "rustc_version",
- "spin",
  "stable_deref_trait",
 ]
 
 [[package]]
 name = "heck"
-version = "0.4.1"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
 [[package]]
 name = "itertools"
-version = "0.12.0"
+version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25db6b064527c5d482d0423354fcd07a89a2dfe07b67892e62411946db7f07b0"
+checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
 dependencies = [
  "either",
 ]
 
-[[package]]
-name = "lazy_static"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
-
 [[package]]
 name = "libm"
 version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
 
-[[package]]
-name = "lock_api"
-version = "0.4.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c168f8615b12bc01f9c17e2eb0cc07dcae1940121185446edc3744920e8ef45"
-dependencies = [
- "autocfg",
- "scopeguard",
-]
-
 [[package]]
 name = "memchr"
 version = "2.6.4"
@@ -178,9 +135,9 @@ dependencies = [
 
 [[package]]
 name = "num-traits"
-version = "0.2.17"
+version = "0.2.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39e3200413f237f41ab11ad6d161bc7239c84dcb631773ccd7de3dfe4b5c267c"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
 dependencies = [
  "autocfg",
  "libm",
@@ -194,9 +151,9 @@ checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
 [[package]]
 name = "ordered-float"
-version = "4.2.0"
+version = "4.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a76df7075c7d4d01fdcb46c912dd17fba5b60c78ea480b475f2b6ab6f666584e"
+checksum = "c65ee1f9701bf938026630b455d5315f490640234259037edb259798b3bcf85e"
 dependencies = [
  "num-traits",
 ]
@@ -227,41 +184,20 @@ dependencies = [
 
 [[package]]
 name = "rstar"
-version = "0.11.0"
+version = "0.12.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73111312eb7a2287d229f06c00ff35b51ddee180f017ab6dec1f69d62ac098d6"
+checksum = "421400d13ccfd26dfa5858199c30a5d76f9c54e0dba7575273025b43c5175dbb"
 dependencies = [
  "heapless",
  "num-traits",
  "smallvec",
 ]
 
-[[package]]
-name = "rustc_version"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
-dependencies = [
- "semver",
-]
-
 [[package]]
 name = "rustversion"
-version = "1.0.14"
+version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ffc183a10b4478d04cbbbfc96d0873219d962dd5accaff2ffbd4ceb7df837f4"
-
-[[package]]
-name = "scopeguard"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
-
-[[package]]
-name = "semver"
-version = "1.0.20"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "836fa6a3e1e547f9a2c4040802ec865b5d85f4014efe00555d7090a3dcaa1090"
+checksum = "0e819f2bc632f285be6d7cd36e25940d45b2391dd6d9b939e79de557f7014248"
 
 [[package]]
 name = "smallvec"
@@ -269,15 +205,6 @@ version = "1.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4dccd0940a2dcdf68d092b8cbab7dc0ad8fa938bf95787e1b916b0e3d0e8e970"
 
-[[package]]
-name = "spin"
-version = "0.9.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
-dependencies = [
- "lock_api",
-]
-
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.0"
@@ -286,15 +213,18 @@ checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 
 [[package]]
 name = "strum"
-version = "0.25.0"
+version = "0.26.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "290d54ea6f91c969195bdbcd7442c8c2a2ba87da8bf60a7ee86a235d4bc1e125"
+checksum = "8fec0f0aef304996cf250b31b5a10dee7980c85da9d759361292b8bca5a18f06"
+dependencies = [
+ "strum_macros",
+]
 
 [[package]]
 name = "strum_macros"
-version = "0.25.3"
+version = "0.26.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23dc1fa9ac9c169a78ba62f0b841814b7abae11bdd047b9c58f893439e309ea0"
+checksum = "4c6bee85a5a24955dc440386795aa378cd9cf82acd5f764469152d2270e581be"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -316,9 +246,9 @@ dependencies = [
 
 [[package]]
 name = "tinyvec"
-version = "1.6.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
+checksum = "445e881f4f6d382d5f27c034e25eb92edd7c784ceab92a0937db7f2e9471b938"
 dependencies = [
  "tinyvec_macros",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 25bbf8f..4b20752 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,13 +15,11 @@ test_lib = []
 
 [dependencies]
 pico-args = "0.5.0"
-lazy_static = "1.4.0"
 nom = "7.1.3"
-itertools = "0.12.0"
-strum = "0.25.0"
-strum_macros = "0.25.0"
-tinyvec = { version = "1.6.0", features = ["alloc"]}
-hashlink = "0.8.4"
-rstar = "0.11.0"
-num-traits = "0.2.15"
-ordered-float = "4.2.0"
\ No newline at end of file
+itertools = "0.13.0"
+tinyvec = { version = "1.8.0", features = ["alloc"]}
+hashlink = "0.9.1"
+rstar = "0.12.2"
+num-traits = "0.2.19"
+ordered-float = "4.5.0"
+strum = { version = "0.26.3", features = ["derive"] }
diff --git a/README.md b/README.md
index 180fce3..614de95 100644
--- a/README.md
+++ b/README.md
@@ -14,11 +14,11 @@ Solutions for [Advent of Code](https://adventofcode.com/) in [Rust](https://www.
 <!--- benchmarking table --->
 ## Benchmarks
 
-|  Day  | Part 1 | Part 2 |
-| :---: | :----: | :----: |
-
+| Day | Part 1 | Part 2 |
+| :---: | :---: | :---:  |
+| [Day 1](./src/bin/01.rs) | `36.5µs` | `48.1µs` |
 
-**Total: 0ms**
+**Total: 0.08ms**
 <!--- benchmarking table --->
 
 ---
diff --git a/data/examples/01.txt b/data/examples/01.txt
new file mode 100644
index 0000000..dfca0b1
--- /dev/null
+++ b/data/examples/01.txt
@@ -0,0 +1,6 @@
+3   4
+4   3
+2   5
+1   3
+3   9
+3   3
\ No newline at end of file
diff --git a/src/bin/01.rs b/src/bin/01.rs
new file mode 100644
index 0000000..9d0cbae
--- /dev/null
+++ b/src/bin/01.rs
@@ -0,0 +1,67 @@
+use std::collections::HashMap;
+
+use advent_of_code::ws;
+use nom::{character::complete::u32, sequence::pair, IResult};
+
+advent_of_code::solution!(1);
+
+fn parse_line(line: &str) -> (u32, u32) {
+    let result: IResult<_, _> = pair(ws(u32), ws(u32))(line);
+    result.expect("😎").1
+}
+
+pub fn part_one(input: &str) -> Option<u32> {
+    let (mut left, mut right): (Vec<_>, Vec<_>) =
+        input.lines().map(parse_line).unzip();
+
+    left.sort();
+    right.sort();
+
+    Some(
+        left.into_iter()
+            .zip(right)
+            .map(|(l, r)| l.abs_diff(r))
+            .sum(),
+    )
+}
+
+pub fn part_two(input: &str) -> Option<u32> {
+    let (left, right): (Vec<_>, Vec<_>) = input.lines().map(parse_line).unzip();
+
+    let mut right_counts = HashMap::<u32, u32>::new();
+
+    for v in right.into_iter() {
+        right_counts
+            .entry(v)
+            .and_modify(|existing| *existing += 1)
+            .or_insert(1);
+    }
+
+    let result = left
+        .into_iter()
+        .map(|left| {
+            (right_counts.get(&left).copied().unwrap_or_default(), left)
+        })
+        .map(|(left, right)| left * right)
+        .sum();
+    Some(result)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_part_one() {
+        let result =
+            part_one(&advent_of_code::template::read_file("examples", DAY));
+        assert_eq!(result, Some(11));
+    }
+
+    #[test]
+    fn test_part_two() {
+        let result =
+            part_two(&advent_of_code::template::read_file("examples", DAY));
+        assert_eq!(result, Some(31));
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index 53b2400..e4ac4be 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,8 +13,7 @@ use nom::{
     sequence::{delimited, preceded},
     Parser,
 };
-use strum::IntoEnumIterator;
-use strum_macros::EnumIter;
+use strum::{EnumIter, IntoEnumIterator};
 use tinyvec::TinyVec;
 
 pub type TV4<K> = TinyVec<[K; 4]>;
@@ -185,9 +184,8 @@ impl<T> Grid<T> {
     }
 
     pub fn escaping(&self, i: usize) -> impl Iterator<Item = Compass> + '_ {
-        Compass::iter().filter_map(move |dir| {
-            self.step_from_index(i, dir).is_none().then_some(dir)
-        })
+        Compass::iter()
+            .filter(move |dir| self.step_from_index(i, *dir).is_some())
     }
 
     pub fn min_dist(&self, from: usize, to: usize) -> usize {