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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.
when using one point, the return type changes to void, but by using two points, the sorting process is ignored, and the list is returned with the same type with sorting application.
the purpose of this use was to beautify the appearance of the code
of course using the array was wrong :'(
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