contains-duplicate solution

Author: Donghae0230

contains-duplicate/Donghae0230.py

@@ -0,0 +1,8 @@
+class Solution:
+    def containsDuplicate(self, nums: List[int]) -> bool:
+        set_nums = set(nums)
+        list_nums = list(set_nums)
+        if len(nums) != len(list_nums):
+            return True
+        else:
+            return False