Loading collection data...
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.
Just checked, there isn't such a test case in any languages now. Please report again if you see such a test case with a wrong expected answer.
same result (
But I passed all the tests.
I got "YES" on this one as well.