brute force
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:O(n*1000)\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:O(n)\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```cpp []\nclass Solution {\npublic:\n    vector<int> minBitwiseArray(vector<int>& nums) {\n\n        vector<int>ans(nums.size(),-1);\n\n        for(int i=0;i<nums.size();i++){\n            \n            int num=nums[i];\n\n            for(int j=1;j<num;j++){\n\n                int check=j|(j+1);\n\n                if(check==num){ans[i]=j;break;}\n\n            }\n\n        }\n        \n        return ans;\n        \n    }\n};\n```
['Array', 'C++']