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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.
If so they are mixed in all my PHP translations, tough work to change all that:-)
Good!! I'm happy for you!
I just tried and had no problem so it doesn't seem to be a problem of the kata. It could be a problem in your code or a Codewars problem. You might try again if you are sure of your code.
The "Submit" tests are much longer than 225 ms, maybe 7 to 10 times more... unless you have a very good algorithm.
If you are sure of your code and nothing goes better, you could report it as a bug at CW.