Using a hash table enables us to retrieve an item in __________.
A) O(1)
B) expected O(1)
C) O(log n)
D) O(n)

Name: Using a hash table enables us to retrieve an item in __________. A) O(1) B) expected O(1) C) O(log n) D) O(n)
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Question

Quizplus · Accepted Answer

Hash tables, under average circumstances, allow for item retrieval in expected constant time, O(1). However, due to potential collisions and the need for rehashing or chaining, this is an "expected" time rather than a guaranteed constant time.

Using a Hash Table Enables Us to Retrieve an Item