Vasya And Vanya Reunite

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Vasya and Vanya being close friends love to play weird games. After getting graduated, they met again at one of the casino in the city and were challenged by the dealer to play a game. They were given two strings each of length N, where both the strings consist of characters 'a', 'b' and empty slots (those marked with 'x') . Moreover, they were also provided count of four pairs of the characters

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solution.cppC++17

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