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Question

Revision en1, by Mhn_Neek, 2024-06-19 12:28:54

How to find the number of pairs of integers (x,y) such that gcd(x,y) = 1?
n<=1e6
x<y<=n
time limit = 2s

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en1 English Mhn_Neek 2024-06-19 12:28:54 131 Initial revision (published)