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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.
Please use proper formatting when posting code, for next time...
You can also print the input to see where it fails, using
printf(strin).The problem is that there's not only spaces or underscores that you can encounter, and you shouldn't be targetting those anyway. Also, if your first check didn't work, you can simply return.