Short and Easy Solution ✅✅
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:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\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        vector<int>ans(nums.size(),-1);\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 newans=j|(j+1);\n            if(newans==num)\n            { \n            ans[i]=j;\n            break;\n            }\n\n          }\n        }\n        return ans;\n    }\n};\n```
['C++']