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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Added. Hope this will be understandable
Maybe adding this to the description :
Already have in description:
Let
H(n)
be the number of all regular hexagons that can be found by connecting 6 of these points.I think a more helpful tip is to stress that the hexagons are formed by points and not lines.
@vlukyanets: just say it in the description (that the hexagons can have different orientations) otherwise you'll get hundreds of messages asking for this.
Searching 12th hexagon is way to solution
This comment is hidden because it contains spoiler information about the solution
i also encountered the same issue, and i can't submit my attempt
although im 100% sure it's good
formula in reply (SPOILER)
btw, what formula is the tester using?
To be honest, I hadn't any other ideas and i was struggling with this for a while. I'm shocked how other people can do this task with only two or three lines of code.
Thank you btw :-D