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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.
This message means that for some test case, your solution returned
false
while it should returntrue
.Do you know what input makes your solution fail? If not, see here how to print function arguments, and then recreate the failing test case locally and debug through it in your IDE.