1 files changed, 2 insertions, 4 deletions
diff --git a/2024/day02.rs b/2024/day02.rs
index b573d5c..798df97 100644
--- a/2024/day02.rs
+++ b/2024/day02.rs
@@ -4,10 +4,8 @@
 use std::env;
 use std::fs::File;
 use std::io::Read;
+use itertools::Itertools;
 
-fn is_all_same(arr: &[bool]) -> bool {
-    arr.windows(2).all(|w| w[0] == w[1])
-}
 
 fn is_safe(arr: &[i32]) -> bool {
     let diff: Vec<i32> = arr.windows(2).map(|w| w[0] - w[1]).collect();
@@ -15,7 +13,7 @@ fn is_safe(arr: &[i32]) -> bool {
         .iter()
         .map(|a| (3 >= a.abs()) && (a.abs() >= 1))
         .all(|a| a);
-    let sign_ok = is_all_same(&diff.iter().map(|a| *a > 0).collect::<Vec<_>>());
+    let sign_ok = diff.iter().map(|a| *a > 0).all_equal();
 
     inc_ok && sign_ok
 }