Given array of N elements. Find number of coprime pairs.
1 <= N <= 30000
1 <= A[i] <= 10^8
TL: 0.6s
ML: 64MB
Number of coprimes
Given array of N elements. Find number of coprime pairs.
1 <= N <= 30000
1 <= A[i] <= 10^8
TL: 0.6s
ML: 64MB
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