Divisible Array

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You are given an array of size $N$.Find such maximum element, that all array elements are divisible by it. ###Input: - The first line of input contains number of test cases $T$. - The first line of each test case consists of $N$, the size of the array. - Next line contains $N$ space-separated integers. ###Output: For each test case, output a maximum number such that all array elements ar

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solution.cppC++17

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