Update 1049.最后一块石头的重量II.md

problems/1049.最后一块石头的重量II.md

@@ -238,6 +238,21 @@ class Solution:
 
         return total_sum - dp[target] - dp[target]
 
+```
+
+卡哥版（简化版）
+```python
+class Solution:
+    def lastStoneWeightII(self, stones):
+        total_sum = sum(stones)
+        target = total_sum // 2
+        dp = [0] * (target + 1)
+        for stone in stones:
+            for j in range(target, stone - 1, -1):
+                dp[j] = max(dp[j], dp[j - stone] + stone)
+        return total_sum - 2* dp[-1]
+
+
 ```
 二维DP版
 ```python