How do you solve the "rational resistance" — 343A/344C problem on Codeforces?

Правка en1, от wallcrawler, 2018-06-03 15:30:12

I am not able to understand the editorial of the same. Please Help!! Link to the problem : http://mirror.codeforces.com/problemset/problem/343/A

Теги #number theory, #math

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en1 Английский wallcrawler 2018-06-03 15:30:12 217 Initial revision (published)