DJ Party (keteki)

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During the DJ party, gentleman and Ladies, formed a queue of n people in the bar. Initially the all stood in the order they entered the bar. However, after a while the gentleman started feeling awkward for standing in front of the ladies in the queue and they started letting the ladies move forward each second. Lets describe the process more precisely. Let's say that the positions in the queue

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solution.cppC++17

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