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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.
For some reason after getting a correct answer, starting from the 2nd test case, the function
loop_sizeis called again. Despite this fact the kata is solvable. I managed to override this probable bug by using global scope in addition to local.