Chef And His String Game

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Chef wants to experiment one of his tricks on the people of a city where everyone has as a string $"S"$ linked with a number $"P"$. Chef wants to find the maximum and minimum value of every string which, according to his trick, is given by finding combinations of length $N$ with maximum and minimum ASCII value sum respectively. None of the combinations should contain an element with ASCII va

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solution.cppC++17

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