diff --git a/problems/动态规划-股票问题总结篇.md b/problems/动态规划-股票问题总结篇.md
index cac77b65..d22132c0 100644
--- a/problems/动态规划-股票问题总结篇.md
+++ b/problems/动态规划-股票问题总结篇.md
@@ -381,6 +381,12 @@ dp[i][1] = max(dp[i - 1][1], dp[i - 1][3]);
 dp[i][2] = dp[i - 1][0] + prices[i];
 dp[i][3] = dp[i - 1][2];
 ```
+```C++
+dp[i][0] = max(dp[i - 1][0], max(dp[i - 1][3]- prices[i], dp[i - 1][1]) - prices[i];
+dp[i][1] = max(dp[i - 1][1], dp[i - 1][3]);
+dp[i][2] = dp[i - 1][0] + prices[i];
+dp[i][3] = dp[i - 1][2];
+```
 
 整体代码如下：