diff --git a/problems/0216.组合总和III.md b/problems/0216.组合总和III.md
index 21230e0f..bcb443e3 100644
--- a/problems/0216.组合总和III.md
+++ b/problems/0216.组合总和III.md
@@ -94,7 +94,7 @@ void backtracking(int targetSum, int k, int sum, int startIndex)
 
 所以 终止代码如下：
 
-```
+```C++
 if (path.size() == k) {
     if (sum == targetSum) result.push_back(path);
     return; // 如果path.size() == k 但sum != targetSum 直接返回
@@ -112,7 +112,7 @@ if (path.size() == k) {
 
 代码如下：
 
-```
+```C++
 for (int i = startIndex; i <= 9; i++) {
     sum += i;
     path.push_back(i);
@@ -126,7 +126,7 @@ for (int i = startIndex; i <= 9; i++) {
 
 参照[关于回溯算法，你该了解这些！](https://mp.weixin.qq.com/s/gjSgJbNbd1eAA5WkA-HeWw)中的模板，不难写出如下C++代码：
 
-```
+```C++
 class Solution {
 private:
     vector<vector<int>> result; // 存放结果集
@@ -273,4 +273,4 @@ Go：
 * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)
 * B站视频：[代码随想录](https://space.bilibili.com/525438321)
 * 知识星球：[代码随想录](https://mp.weixin.qq.com/s/QVF6upVMSbgvZy8lHZS3CQ)
-<div align="center"><img src=../pics/公众号.png width=450 alt=> </img></div>
\ No newline at end of file
+<div align="center"><img src=../pics/公众号.png width=450 alt=> </img></div>