[deepInTheWoodz] WEEK 01 solutions #2011

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Merged

TonyKim9401 merged 8 commits into DaleStudy:main from deepInTheWoodz:main

Nov 17, 2025

contains-duplicate/deepInTheWoodz.py

-Original file line number
+Diff line change
@@ -0,0 +1,9 @@
+    class Solution:
+      def containsDuplicate(self, nums: List[int]) -> bool:
+        s = set()
+        for num in nums:
+          if num in s:
+            return True
+          else:
+            s.add(num)
+        return False