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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.
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In Performance Tests array consists from numpy.int32, which prevents ZeroDivisionError catching, had to convert nums in python int.
And sometimes there are negative numbers in tests, and this solution can be not accepted.
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Same in Python.
Walking through the list twice isn't O(N), it's O(N^2).