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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.
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Lol neat...
I spent the entire afternoon drawing DFA diagrams, and finally made it, but my regex is slightly longer than this. Is this also derived from a DFA or there is some other way to resolve this problem? It's the first time I see this kind of problem, ad I'd like to learn more about this subject :)