July 2021
Intermediate to advanced
768 pages
25h 23m
English
Content preview from Advanced Algorithms and Data Structures
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6 Trie, radix trie: Efficient string search
This chapter covers
- Understanding why working with strings is different
- Introducing trie1 for efficient string search and indexing
- Introducing radix tree2 as a memory-efficient evolution of trie
- Using prefix trees to solve string-related problems
- Leveraging tries to implement an efficient spell-checker
How many times have you sent a text or an email or tweeted in a hurry, only to realize a second later that you made a typo? For me, it was too many times! Lately, however, we’ve had a precious ally on our side in email clients and browsers in general: spell-checkers! If you’d like to know more about how they work and how to implement them efficiently, this chapter is the right place to start.
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