Collections · interview question
Why do teams use a HashSet over a List when storing items in production code?
Multiple choiceMediumchapter-4-curatedpremiumcollectionschoosing-the-right-collection
Answer and explanation
Correct answer
B. Faster lookups
Why
HashSet provides constant time complexity for add, remove, and contains operations. Lists typically have linear time complexity for these operations, especially when checking for duplicates.
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