fix:算法题目

14_刷题/problem_solving_02.py

@@ -46,13 +46,14 @@ from typing import List
 
 class Solution:
     def removeDuplicates(self, nums: List[int]) -> int:
-        """
-        列表去重后列表的长度
-        :param nums:
-        :return:
-        """
-        result = set(nums)
-        return len(result)
+        if not nums:
+            return 0
+        k = 1
+        for i in range(1, len(nums)):
+            if nums[i] != nums[i - 1]:
+                nums[k] = nums[i]
+                k += 1
+        return k
 
 
 if __name__ == '__main__':