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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.
But Desc Says:
... but completely unreadable and a maintenance nightmare. I'd say stay away from such things in a production environment!
Точняк, тесты нужно подправить.
O(1), unless you mean n as the number of bits in the inputs :)
The explanation was visible from the home page (and from your profile) to anyone (even when they haven't solved the kata and can't see the code, you're describing how to do it step by step) if you don't use it, I've flagged your previous comment for you now.
The spoiler flag is there for a reason you know?