Ash Dilemma

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There are N people in a queue, each holding a Pikachu numbered indicating their position in the queue i.e., 1,2,3,……n-1,n. Any person can swap their Pikachu with the person in front of them but the number on the Pikachu will remain same. One person can swap at most 2 Pikachu. Swapping is unidirectional ; always from greater number to smaller. That is to say, if n=8 and Person 5 swaps with Person

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solution.cppC++17

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