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http://codeforces.net/contest/758/problem/F
Guys can anybody explain why the upper bounds for x and y for the ratio d = x/y is n-1 th root of 'r'?
I know it myself but I want to know what other coders think about it.
So basically explain why x <= power(r, 1 / (n — 1)) and y <= power(r, 1 / (n — 1))?
Auto comment: topic has been updated by bhikkhu (previous revision, new revision, compare).
Assuming you're talking about the variables x and y defined in the editorial, for y we have:
b × yn - 1 ≤ r
The case for x is the same if you just replace y with x.