Longest Subarray
You are given an array $A$ of length $N$. Find the **maximum length** of any subarray of $A$, such that, the [bitwise OR](https://en.wikipedia.org/wiki/Bitwise_operation#OR) of all the elements of the subarray is equal to the [bitwise OR](https://en.wikipedia.org/wiki/Bitwise_operation#OR) of the remaining elements of the array. Report $-1$ if no such subarray exists. Note: - A subarray is fo
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solution.cppC++17
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