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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.
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Of course, but you need to remeber that this task is designed for starters.
In productive code, I prefer
i - ninstead of usingi + (n * -1)to avoid unnecessary computations. That was a long time ago but I think, I wanted to show how I came up to this solution.Maybe it's not the same formula:
i + (n * -1) = i - n
You need n in your formula, otherwise you don't know how far you should rotate.
i - 1 won't work for n > 1 in my solution.