fix: posix

Author: changhyumm

contains-duplicate/changhyumm.py

@@ -6,4 +6,5 @@ def containsDuplicate(self, nums: List[int]) -> bool:
                 return True
             else:
                 dic[num] = True
-        return False
+        return False
+    

two-sum/changhyumm.py

@@ -10,4 +10,3 @@ def twoSum(self, nums: List[int], target: int) -> List[int]:
                 return [idx, dic[target-num]] 
             else:
                 dic[num] = idx
-