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FYI:
I considered 2 and 5 as valid rotated numbers, these should not 'cause are equivalents.
Why in the range(10,100) the answer is 4, i found 6:
11
25
52
69
88
96
Maybe i misunderstood
I'm still trying to solve it, but i guess is based on https://brilliant.org/wiki/egg-dropping/ so i suggest to be add to kata's description.
There's no problem with
8
. This has been brought up and explained numerous times in the comments below - try reading them. Not an issue.This Kata stills having the problem with the "perfect pow" of 8.