diff --git a/README.md b/README.md
index d611802..73d2b86 100644
--- a/README.md
+++ b/README.md
@@ -19,9 +19,9 @@ Solutions for [Advent of Code](https://adventofcode.com/) in [Rust](https://www.
 | Day | Part 1 | Part 2 |
 | :---: | :---: | :---:  |
 | [Day 1](./src/bin/01.rs) | `72.0µs` | `76.8µs` |
-| [Day 2](./src/bin/02.rs) | `333.6µs` | `642.1µs` |
+| [Day 2](./src/bin/02.rs) | `215.6µs` | `371.6µs` |
 
-**Total: 1.12ms**
+**Total: 0.74ms**
 <!--- benchmarking table --->
 
 ---
diff --git a/src/bin/02.rs b/src/bin/02.rs
index 95166cc..378a045 100644
--- a/src/bin/02.rs
+++ b/src/bin/02.rs
@@ -2,7 +2,7 @@ advent_of_code::solution!(2);
 
 use std::cmp::Ordering;
 
-fn validate_input_p1(input: &Vec<u32>) -> bool {
+fn validate_input_p1(input: &[u32]) -> bool {
     input
         .iter()
         .fold(
@@ -30,7 +30,7 @@ fn validate_input_p2(input: &Vec<u32>) -> bool {
     }
 
     for i in 0..input.len() {
-        let mut input2 = input.clone();
+        let mut input2 = input.to_owned();
         input2.remove(i);
         if validate_input_p1(&input2) {
             return true;
@@ -50,7 +50,7 @@ pub fn part_one(input: &str) -> Option<usize> {
                 .map(|nb| nb.parse::<u32>().expect("parsing failed"))
                 .collect::<Vec<u32>>()
         })
-        .filter(validate_input_p1)
+        .filter(|s| validate_input_p1(s))
         .count()
         .into()
 }