Cleanup old 2023 solutions

Author: michel-kraemer

2023/day16/src/main.rs

@@ -73,8 +73,12 @@ fn energize(start: (i32, i32, i32, i32), grid: &[u8], w: usize, h: usize) -> usi
 
 fn main() {
     let input = fs::read_to_string("input.txt").expect("Could not read file");
-    let lines: Vec<&str> = input.lines().collect();
-    let grid: Vec<u8> = lines.iter().flat_map(|&l| l.as_bytes().to_vec()).collect();
+    let lines = input.lines().collect::<Vec<_>>();
+    let grid = lines
+        .iter()
+        .flat_map(|l| l.as_bytes())
+        .copied()
+        .collect::<Vec<_>>();
     let w = lines[0].len();
     let h = lines.len();
 

2023/day23/src/main.rs

@@ -64,8 +64,12 @@ fn insert_edge(
 fn main() {
     for part1 in [true, false] {
         let input = fs::read_to_string("input.txt").expect("Could not read file");
-        let lines: Vec<&str> = input.lines().collect();
-        let grid: Vec<u8> = lines.iter().flat_map(|&l| l.as_bytes().to_vec()).collect();
+        let lines = input.lines().collect::<Vec<_>>();
+        let grid = lines
+            .iter()
+            .flat_map(|l| l.as_bytes())
+            .copied()
+            .collect::<Vec<_>>();
         let w = lines[0].len();
         let h = lines.len();