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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.
Simple and clean.
Don't modify the input.
Sometimes the constant factor is important when it's really performance-critical.
For example, heap sort and merge sort typically has a much bigger constant runtime factor than quick sort.
the simplification is valable/usefull for comparisons only if you compare different "degrees of complexity"
O(2n) == O(n)
O(2N) while it's easy to do it in O(N)...
Could you explain why is that?
Python tests are still broken