Counting is life

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You are given a set $S$ of $K$ numbers which is a set of first $K$ powers of $2$ (ie. $1$,$2$,$4$,$8$,...) Given $N$ you have to construct an Array $A$[$0$, ..., $N-1$] of length $N$ such that $A[i]$ must belong to $S$ for all $i$, $0$ <= $i$ < $N$. Find the maximum value of $A[0]$ XOR $A[1]$ XOR ... XOR $A[N-1]$ that you can achieve. Here XOR is bitwise xor operator. Also, tell the number of a

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solution.cppC++17

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