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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.
this solution has O(n) complexity, consider using more perfomant approach
Something wrong with me or smth wrong with system solution in python?
('array: ', [5, -14, -12, 23, -14, 30, 6, -5, 3, 30, 27, -13, 27, 3, -14, 11, 29, -23, -14, -7, -27, 7, -16, -27, -29, 2, 25, 12, -27, 22, 4, 14, -3, -10, -6, -18, -28, -27, -10, 6, -21, -24, -3, -2, -23, -15, -1, 16, 3, 6])
('sum of abs:', 744)
143 should equal 2049
why only python2, what about py3?