What is a hash table?

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Editor">Editor Staff asked 5 months ago

What is a hash table?
 
(a) A structure that maps values to keys
 
(b) A structure that maps keys to values
 
(c) A structure used for storage
 
(d) A structure used to implement stack and queue
 
My query is from Hash Tables topic in chapter Hash Tables of Data Structures & Algorithms I
 
This question was addressed to me during a job interview.

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1 Answers
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Editor">Editor Staff answered 5 months ago

Correct option is (b) A structure that maps keys to values
 
The best explanation: A hash table is used to implement associative arrays which has a key-value pair, so the has table maps keys to values.


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