Pair the Programmers

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A programming community has assigned ratings to all the users. Now, Chef wants to pair the programmers so that they can learn from one another. Chef wants to achieve a community score of $K$. The score assigned to a pair by the community is the absolute difference of their ratings. Chef finds out the maximum sum of their scores and let's call it $M$. Two new programmers recently joined

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solution.cppC++17

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