Around the Hogwarts

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When Harry Potter and his friends get admitted in Hogwarts School, Rubeus Hagrid promises to give them a tour of the places around the school. There are $N$ places around the school in a circular manner. Each place has a value - "type Ai" associated with it . A tour is defined as a set of unique places, each being visited only once. Two unique places can have same type value and two tours are not

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solution.cppC++17

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