diff --git a/solution/1500-1599/1531.String Compression II/README.md b/solution/1500-1599/1531.String Compression II/README.md
index 5e2a928334de5..824c787b2523a 100644
--- a/solution/1500-1599/1531.String Compression II/README.md	
+++ b/solution/1500-1599/1531.String Compression II/README.md	
@@ -68,6 +68,25 @@ tags:
 ### 方法一
 
 <!-- tabs:start -->
+#### C++
+
+```cpp
+class Solution {
+public:
+    bool winnerSquareGame(int n) {
+        vector<bool> dp(n + 1, false);
+        for (int i = 1; i <= n; i++) {
+            for (int j = 1; j * j <= i; j++) {
+                if (!dp[i - j * j]) {
+                    dp[i] = true;
+                    break;
+                }
+            }
+        }
+        return dp[n];
+    }
+};
+
 
 #### Java