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Community Problem

LFU Cache

Difficulty: Hard

Implement a Least Frequently Used (LFU) cache with O(1) get and put using a frequency-bucket map plus per-bucket doubly linked lists.

LFU Cache

Implement a Least Frequently Used (LFU) cache with O(1) get and put using a frequency-bucket map plus per-bucket doubly linked lists.

HARD

$9.99

lfu-cache

hash-table

linked-list

By CodeSnatch

November 29, 2025

Updated May 20, 2026

1,033 views

4.3 (17)

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