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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.
The time complexity of this code is O(n^2) is not best practice. The best practice for storing and accessing unique key-value pairs in this code would be to use the Map data type, which has a time complexity of O(1), making it a faster alternative to arrays or other data structures.