Time complexity added

sun912 · sun912 · commit f74db69c4075 · 2024-08-12T21:26:35.000+09:00
diff --git a/contains-duplicate/sun912.py b/contains-duplicate/sun912.py
@@ -1,3 +1,7 @@
+"""
+    Time complexity: O(n)
+"""
+
 class Solution:
     def containsDuplicate(self, nums: List[int]) -> bool:
         nums_set = set(nums)
