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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.
Use question label next time, read this
Add some prints to debug your code, and some counters to make sure your loops end. You'll see you have infinite loops. It fails with the first sample test if you want to try.
It's not time complexity, your code has infinite loops.