Coding·45 minMembers

LFU Cache (LeetCode 460)

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Implement an O(1) LFU (Least Frequently Used) cache supporting `get(key)` and `put(key, value)` under a fixed capacity. Asked both as a phone-screen coding problem and as the second coding round in on...

SWE

linked-list

hashmap

design

caching

hard

Frequency

Low

Last asked

2026-01-28

Stage

phone-screen · onsite-coding