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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.
This is not a suggestion. The users are supposed to make the correct reasonning from the information provided. Don't do it for them.
It doesn't mean the description cannot be improved, but please not this.
Explained doesn't mean it isn't wrong. I just ridiculous.
This case is explained in the description.
I'm agree with you. I don't understand this test case.
Thinking that a kata "doesn't make any sense" is not a kata issue. It is your opinion and I respect it but please note at the top of the page that 45,701 passed the kata.