Tired Knights

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Problem Statement N knights were sitting at a round table and having a serious talk. The knights are so tired, that they can’t even rotate their neck to talk to talk to the knights sitting on their sides. So, a knight can only talk to the knight sitting diametrically opposite to him on the table. Given the number of knights N, find the index of the knight sitting opposite to the knight numbered

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solution.cppC++17

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