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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.
Wow! That was a tough one.
great kata!
It seems like each time array is passed, it uses the array that was returned from the last run of the function.
ex) If return array of first test case = [2 ,3 ,4 ,5 ,1], next test case will use this same array instead of starting again at [1,2,3,4,5]
Maybe it's just me...