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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.
too much typing:) I like short code and more readable..math power is here
Loved it!
Excellent. This one is O(log n). I wish I could come up with solutions like these.
Perfect solution! Performant and easy to understand at the same time.
It will be harder to read.
The third parameter of SAS is not necessary, since you calculate it. You could easily calculate it in the SAS function.
EmptyList.prototype.append(xs) isn't a noop. It needs to return xs.