Priyam and Socks

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Priyam won a ticket for a world tour. He went shopping and purchased some Red, Green, Blue socks for him. Priyam is a strange guy because he doesn't wear socks of same color. So he wants to select 2 socks such that they have different color. Assume both left and right socks are same. Help him find number of ways to select 2 socks of different color. Input The first line contains a single integ

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solution.cppC++17

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