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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.
Manual notification.
This comment is hidden because it contains spoiler information about the solution
Without the conversion the lookup would be
O(n)instead ofO(1).This comment is hidden because it contains spoiler information about the solution
Hi, don't post code without the spoiler tag. It only passes the basic test. The complete tests include some edge cases you have to consider.