diff --git a/problems/0455.分发饼干.md b/problems/0455.分发饼干.md
index 2437582c..63525b03 100644
--- a/problems/0455.分发饼干.md
+++ b/problems/0455.分发饼干.md
@@ -219,19 +219,17 @@ func findContentChildren(g []int, s []int) int {
 
 ### Rust
 ```rust
-pub fn find_content_children(children: Vec<i32>, cookie: Vec<i32>) -> i32 {
-    let mut children = children;
-    let mut cookies = cookie;
+pub fn find_content_children(mut children: Vec<i32>, mut cookie: Vec<i32>) -> i32 {
     children.sort();
     cookies.sort();
 
-    let (mut child, mut cookie) = (0usize, 0usize);
+    let (mut child, mut cookie) = (0, 0);
     while child < children.len() && cookie < cookies.len() {
         // 优先选择最小饼干喂饱孩子
         if children[child] <= cookies[cookie] {
             child += 1;
         }
-        cookie += 1
+        cookie += 1;
     }
     child as i32
 }