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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.
It's not necessary if you have a void function. Though, I'm having issues in this Kata.
Please do not forgot the key word "return" at the end of your func when using C language~