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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 solved it!!
can someone suggest me how to solve 4kyu question? what things i need to learn to solve 4kyu questions?