September 2015
Beginner to intermediate
230 pages
4h 47m
English
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Sorted Sets
A Sorted Set is very similar to a Set, but each element of a Sorted Set has an associated score. In other words, a Sorted Set is a collection of nonrepeating Strings sorted by score. It is possible to have elements with repeated scores. In this case, the repeated elements are ordered lexicographically (in alphabetical order).
Sorted Set operations are fast, but not as fast as Set operations, because the scores need to be compared. Adding, removing, and updating an item in a Sorted Set runs in logarithmic time, O(log(N)), where N is the number of elements in a Sorted Set. Internally, Sorted Sets are implemented as two separate data structures:
- A skip list with a hash table. A skip list is a data structure that allows fast search within ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.