day21 better

aoc_2024/src/day21.rs

@@ -1,5 +1,3 @@
-use std::iter::once;
-
 use aoc_runner_derive::{aoc, aoc_generator};
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -37,12 +35,6 @@ impl<T> IntoIterator for Path<T> {
     }
 }
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-enum Button {
-    Num(NumButton),
-    Dir(DirButton),
-}
-
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 enum DirButton {
     Up,