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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.
I already finished my code for this Kata, passed all test example, also the performance issue, but i can't submit my final solution. :(
I am also encoutering this issue. . any advise?