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Leetcode 146. LRU Cache

Asked at:

Oracle

Meta

LinkedIn

Uber

Question Timeline

See when this question was last asked and where, including any notes left by other candidates.

Company

Level

Region

Late August, 2025

Meta

Staff

Design a data structure that follows the constraints of a Least Recently Used (LRU) cache. The functions get and put must each run in O(1) average time complexity.

Mid August, 2025

Meta

Senior

Mid August, 2025

Amazon

Mid-level

The question was originally asking to store top x user alias and an email in memory to prevent making too many server requests

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