diff --git a/src/bin/day20.rs b/src/bin/day20.rs
index 906f2ee..dc97d89 100644
--- a/src/bin/day20.rs
+++ b/src/bin/day20.rs
@@ -110,7 +110,7 @@ impl Day20 {
         watch: Option<u64>,
     ) -> (usize, usize, Option<usize>) {
         let mut q = VecDeque::new();
-        let mut counters = vec![0, 0];
+        let mut counters = [0, 0];
         let mut high_idx = None;
 
         q.push_back(("button".to_owned(), "broadcaster".to_owned(), false));
@@ -197,7 +197,7 @@ impl Solution<Output1, Output2> for Day20 {
 
     fn part_2(&mut self) -> Output2 {
         let rx_parent = &self.gates["rx"].inputs[0];
-        let rx_parent_hash = Some(gate_hash(&rx_parent));
+        let rx_parent_hash = Some(gate_hash(rx_parent));
 
         let mut cycles = vec![0_usize; self.gates[rx_parent].inputs.len()];
         let mut found = 0;