The Unchanging OR

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Chef was recently studying the [Bitwise OR](https://en.wikipedia.org/wiki/Bitwise_operation#OR) operation, and stumbled upon the following problem: Let $F(i) = 1 \ | \ 2 \ | \ 3 \ | \ \ldots \ | \ i$, where $|$ denotes bitwise OR. You are given an integer $N$. Find the number of distinct $i$ such that $2 \leq i \leq N$ and $F(i) = F(i-1)$. ### Input - The first line of input will contain an int

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solution.cppC++17

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