Python || Easy to understand || python3
\nclass Solution:\n    def minImpossibleOR(self, nums: List[int]) -> int:\n        i = 1\n        cnt = 1\n        nums = set(nums)\n        while True:\n      
```\nclass Solution:\n    def minImpossibleOR(self, nums: List[int]) -> int:\n        i = 1\n        cnt = 1\n        nums = set(nums)\n        while True:\n            if i not in nums:\n                return i\n            i = 2**(cnt)\n            cnt += 1\n```
['Math', 'Bit Manipulation', 'Python', 'Python3']