Second Year Pains

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Sri's M friends are in their second year and they've gotten horrible marks in the COA mid term. They are about to enter the classroom which already has N students sitting inside. The ith student got Ai grades. To avoid humiliation, the M friends want to sit with people who have the exact same grades as them. They want to know if they can find a partner with the same grades. You know the scores of

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solution.cppC++17

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