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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.
Kata hint != kata suggestion.
Also, such cases already exist: -->
step(2, 5, 5)
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True, but I thought that someone might do such mistake and will check his code one more time if he has some problems of executing it.
Also I didn't know how to mark it if not a suggestion.
Not a suggestion of the kata itself.
If you're iterating through array be sure that your type of iteration is the same as the array's one.