Harry and magical number

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Harry and Hermione are playing a game in which Hermione challenges Harry by giving an array A and a number S, and asks to provide an efficient magical algorithm to find a number K from array A such that if all elements in A greater than K are changed to K, the sum of all elements in the resulting array will be S. Now harry has to find that magical number K. So help out harry in this task. Inp

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solution.cppC++17

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