Maximal AND

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You are given two numbers $A$ and $B$ as input. You can perform the following operation on either $A$ or $B$ only once: Operation: $X = X⊕C $ where $0<C<=X$ and ⊕ is bitwise XOR operation. This means you can XOR any one of **A** and **B** with a number less than or equal to it. Your task is to maximize **A** & **B** (where **&** is bitwise AND) using the above operation atmost once only, with the

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solution.cppC++17

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