find the subset

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Praharsha is a fan of marvel comics. He gave ratings to each book after he read and labeled a sticker containing its rating and index(it starts with zero and increments by 1 for every comic) of the comic. Now he wants to present a few books to his friend basha on his birthday. So he wants to know if there exists a subset B of this series of books( array A) which follows these statements: B sho

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solution.cppC++17

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