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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 is duplicate kata , I solved same kata 2 day ago
Duplicate
There are no random tests.
Why? It does not align with every other input, and this excludes the kata from every strongly typed language.
Similarly, "numeric strings" is not a number, and again, mixed type excludes the kata from every strongly typed language.