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There is no need for any esoteric examples because hash tables are used everyday. Right now you browser probably uses dozens of them. Maps (also called dictionaries or associative arrays sometimes) and sets in most of programming languages are usually implemented as hash tables by default. Those are such common data structures that you probably do not need ...


I'll give a real life example of hastables. I once saw a database in a CD. The CD contained a database with roughly 20 million records. The CD also contained an application. In that app you would enter a code, and the details of the record would appear on screen in a fraction of a second. And I'm talking of a time where CD drives were slower than today. No ...

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