Photo of your friends

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You have n friends and you want to take m pictures of them. Exactly two of your friends should appear in each picture and no two pictures should contain the same pair of your friends. So if you have n = 3 friends you can take 3 different pictures, each containing a pair of your friends. Each of your friends has an attractiveness level which is specified by the integer number ai for the i-th frien

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solution.cppC++17

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