Need hints for this problem of ICPC Dhaka Regional 2019 (Preli) Contest

Revision en2, by Evan_Shareef, 2020-09-06 21:37:38

I found the problem interesting. Can anyone share the idea behind this problem? I have attached the problem link with this post but may be you need to sign up to see the problem. So I have also attached the Google Drive link of this problem

main source: https://algo.codemarshal.org/contests/icpc-dhaka-19-preli/problems/G

Drive link: Problem number: G (Pairs forming GCD ) https://drive.google.com/open?id=10k4fXa1SZWQM79XbwONUMyAWk70zwMCt

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en2 English Evan_Shareef 2020-09-06 21:37:38 67
en1 English Evan_Shareef 2020-09-06 21:35:31 467 Initial revision (published)