[LC] feat: contains-duplicate

Author: HaJunYoo

contains-duplicate/hajunyoo.py

@@ -0,0 +1,6 @@
+class Solution:
+    def containsDuplicate(self, nums: List[int]) -> bool:
+        string_len = len(nums)
+        set_len = len(set(nums))
+
+        return string_len != set_len