Increase the number

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Ravi has been given a number in the form of an array, arr of length N. His task is to increase this number to the just next higher number using the same digits/ array elements. If the number provided is already the maximum possible number using the same digits then the smallest number using the same digits is the required solution. Help Ravi to find the next higher number. ### Input - The first l

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solution.cppC++17

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