diff --git a/problems/0518.零钱兑换II.md b/problems/0518.零钱兑换II.md
index 0d35fb7c..1921866e 100644
--- a/problems/0518.零钱兑换II.md
+++ b/problems/0518.零钱兑换II.md
@@ -397,7 +397,7 @@ object Solution {
   }
 }
 ```
-## C
+### C
 
 ```c
 int change(int amount, int* coins, int coinsSize) {
@@ -444,3 +444,4 @@ public class Solution
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">
   <img src="../pics/网站星球宣传海报.jpg" width="1000"/>
 </a>
+