[rs] Solve 2022_06 part 1

rs/src/y2022.rs

@@ -3,3 +3,4 @@ pub mod d02;
 pub mod d03;
 pub mod d04;
 pub mod d05;
+pub mod d06;

rs/src/y2022/d05.rs

@@ -46,7 +46,7 @@ pub fn solve(input: String) {
     let part1 = part1.iter().map(|s| s.last().unwrap()).collect::<String>();
     println!("Part 1: {}", part1);
 
-    // Par 2
+    // Part 2
     let mut part2 = stacks.clone();
     for (amount, from, to) in moves {
         let mut values = vec![];

rs/src/y2022/d06.rs

@@ -0,0 +1,17 @@
+pub fn solve(input: String) {
+    let part1 = input
+        .chars()
+        .zip(input.chars().skip(1))
+        .zip(input.chars().skip(2))
+        .zip(input.char_indices().skip(3))
+        .find_map(|(((c1, c2), c3), (i, c4))| {
+            if c1 != c2 && c1 != c3 && c1 != c4 && c2 != c3 && c2 != c4 && c3 != c4 {
+                println!("{c1}{c2}{c3}{c4}");
+                Some(i + 1)
+            } else {
+                None
+            }
+        })
+        .unwrap();
+    println!("Part 1: {part1}");
+}