Who is my Friend

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Blake was invited to a secret society and given a challenge. The challenge was that he has to identify his friends among a lot of people wearing masks. If he wrongly identified he will be banished from the society. To distinguish between different people, each of them, including Blake, was given a number (Help Blake identify and count his friends. Also to be kept in Mind, If Blake is the only o

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solution.cppC++17

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