Python | Simple Solution
Code\n\nfrom collections import defaultdict\nclass Solution:\n    def minImpossibleOR(self, nums: List[int]) -> int:\n        nums = set(nums)\n        for i in
# Code\n```\nfrom collections import defaultdict\nclass Solution:\n    def minImpossibleOR(self, nums: List[int]) -> int:\n        nums = set(nums)\n        for i in range(32):\n            if (1<<i) not in nums:\n                return 1<<i\n            \n```
['Python3']