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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.
There could be a test case that triggers an infinite loop in your code somewhere.
Ah, then yeah, the server might be a bit slow.
Yeah, that could be it! Also make sure your code isn't too inefficient ;)
On which test in which block?