diff --git a/src/problem_0120_triangle/dynamic_programming.rs b/src/problem_0120_triangle/dynamic_programming.rs
index 058d4ef8..b161e47e 100644
--- a/src/problem_0120_triangle/dynamic_programming.rs
+++ b/src/problem_0120_triangle/dynamic_programming.rs
@@ -6,8 +6,8 @@ use std::mem;
 
 impl Solution {
     pub fn minimum_total(triangle: Vec<Vec<i32>>) -> i32 {
-        let mut temp_cache = Vec::<i32>::with_capacity(triangle.len()); // TODO: Remove explicit type annotation.
-        let mut cache = Vec::<i32>::with_capacity(triangle.len()); // TODO: Remove explicit type annotation.
+        let mut temp_cache = Vec::with_capacity(triangle.len());
+        let mut cache = Vec::with_capacity(triangle.len());
 
         for row in triangle {
             temp_cache.resize(row.len(), 0);