2022/data/day4.expected

@@ -1,2 +0,0 @@
-576
-905

2022/day3/rust/src/main.rs

@@ -50,6 +50,11 @@ impl BitAnd for ItemSet {
     }
 }
 
+struct Rucksack {
+    left: ItemSet,
+    right: ItemSet,
+}
+
 fn main() {
     let mut data = String::new();
     stdin().read_to_string(&mut data).unwrap();
@@ -60,16 +65,16 @@ fn main() {
             let (left, right) = line.split_at(line.len() / 2);
             assert_eq!(left.len(), right.len());
 
-            let left: ItemSet = left.chars().collect();
-            let right: ItemSet = right.chars().collect();
+            let left = left.chars().collect();
+            let right = right.chars().collect();
 
-            (left, right)
+            Rucksack { left, right }
         })
         .collect();
 
     let sum1: u32 = sacks
         .iter()
-        .map(|&(left, right)| (left & right).priority_of_single_item().unwrap())
+        .map(|sack| (sack.left & sack.right).priority_of_single_item().unwrap())
         .sum();
 
     let sum2: u32 = sacks
@@ -78,7 +83,7 @@ fn main() {
         .map(|sacks| {
             sacks
                 .iter()
-                .map(|&(left, right)| left | right)
+                .map(|sack| sack.left | sack.right)
                 .reduce(BitAnd::bitand)
                 .unwrap()
                 .priority_of_single_item()

2022/day4/rust/Cargo.toml

@@ -1,8 +0,0 @@
-[package]
-name = "rust_2022_04"
-version = "0.1.0"
-edition = "2021"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]

2022/day4/rust/src/main.rs

@@ -1,45 +0,0 @@
-use std::io::{stdin, Read};
-
-fn main() {
-    let mut data = String::new();
-    stdin().read_to_string(&mut data).unwrap();
-
-    let pairs: Vec<_> = data
-        .lines()
-        .map(|line| {
-            let make_range = |s: &str| {
-                let (start, end) = s.split_once('-').unwrap();
-
-                let start: u64 = start.parse().unwrap();
-                let end = end.parse().unwrap();
-
-                assert!(start <= end);
-                start..=end
-            };
-
-            let (left, right) = line.split_once(',').unwrap();
-            let left = make_range(left);
-            let right = make_range(right);
-
-            (left, right)
-        })
-        .collect();
-
-    println!(
-        "{}",
-        pairs
-            .iter()
-            .filter(|(l, r)| l.start() == r.start()
-                || l.end() == r.end()
-                || l.start().cmp(r.start()) != l.end().cmp(r.end()))
-            .count()
-    );
-
-    println!(
-        "{}",
-        pairs
-            .iter()
-            .filter(|(l, r)| l.end() >= r.start() && r.end() >= l.start())
-            .count()
-    );
-}

Cargo.lock

@@ -473,10 +473,6 @@ version = "0.1.0"
 name = "rust_2022_03"
 version = "0.1.0"
 
-[[package]]
-name = "rust_2022_04"
-version = "0.1.0"
-
 [[package]]
 name = "ryu"
 version = "1.0.11"

Cargo.toml

@@ -12,5 +12,4 @@ members = [
 	"2022/day1/rust",
 	"2022/day2/rust",
 	"2022/day3/rust",
-	"2022/day4/rust",
 ]