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아래 문제는 코딜리티에서 제공하는 permMissingElem의 문제입니다🧑🏻‍💻 문제 제시 An array A consisting of N different integers is given. The array contains integers in the range [1..(N + 1)], which means that exactly one element is missing. Write a function: public func solution(_ A : inout [Int]) -> Int that, given an array A, returns the value of the missing element. For example, given array A such that: A[0] = 2 A[1] = 3..