contains duplicate-line break add

Author: deepInTheWoodz

contains-duplicate/deepInTheWoodz.py

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