Adi and friends

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Adi got many gifts these days. So he decided to pack them into packages and send them to his friends. There are $n$ kinds of gifts. The gifts that he has received are branded and the gifts of the same brand have the exact same model. Hence gifts of the same brand are identical (indistinguishable) whereas gifts of different brands are different. The number of presents of each kind, that Adi has is

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solution.cppC++17

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