leetcode: finished #260

content/leetcode/2023/8.md

@@ -3,6 +3,37 @@ title: "2023.8"
 draft: false
 ---
 
+# 2023.8.30
+
+```python
+#
+# @lc app=leetcode.cn id=260 lang=python3
+#
+# [260] 只出现一次的数字 III
+#
+
+# @lc code=start
+from typing import List
+
+
+class Solution:
+    def singleNumber(self, nums: List[int]) -> List[int]:
+        xor = 0
+        for num in nums:
+            xor ^= num
+        mask = 1
+        while xor & mask == 0:
+            mask <<= 1
+        a, b = 0, 0
+        for num in nums:
+            if num & mask:
+                a ^= num
+            else:
+                b ^= num
+        return [a, b]
+# @lc code=end
+```
+
 # 2023.8.29
 
 ```python