Co-prime Sets

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Given a set of n numbers. A group is subset of these numbers such that all elements contained inside the group have gcd/hcf 1. Find the maximum possible value of size of such group. Input First line contains a single integer t, representing the no of test cases. For each test case:- First line contains a single integer n,size of input array Second line contains n numbers a[1],a[2],.....,a[

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solution.cppC++17

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