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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.
I guess we'll never know. Closing.
Thank you so much for your kind words!
What kind of explanation do you mean, what part was most unclear?
Ruby translation kumited -- please check and approve
Added fixed test and modified solution.
I really got to start using StringBuilder. I went full Barney-style with my solution.
It's a pretty good Kata that let you use your mind even once, it needs some good concentration and a bit more explaining in the instruction section.
However, that's a pretty good one!