July 2024
Beginner to intermediate
280 pages
7h 25m
English
Content preview from Grokking Data StructuresBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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12 Dictionaries and hash tables: How to build and use associative arrays
In this chapter
- discovering how the dictionary ADT improves indexing
- implementing a dictionary with the data structures we already know
- introducing a new data structure that is a game changer for dictionaries—the hash table
- how hashing works
- comparing chaining and open addressing, two strategies for resolving conflicts
So far, we have discussed data structures that allow us to retrieve stored data based on the position of elements. For arrays and linked lists, we can retrieve elements based on their position in the data structure. For stacks and queues, the next element that can be retrieved is at a specific position.
Now we introduce key-based data structures, sometimes ...
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