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Companies
Citadel
Design
Design
0/13 solved
LRU Cache
MEDIUM
Find Median from Data Stream
HARD
Implement Trie (Prefix Tree)
MEDIUM
Serialize and Deserialize Binary Tree
HARD
Insert Delete GetRandom O(1)
MEDIUM
LFU Cache
HARD
Design Circular Queue
MEDIUM
Insert Delete GetRandom O(1) - Duplicates allowed
HARD
Design Search Autocomplete System
HARD
Moving Average from Data Stream
EASY
Design In-Memory File System
HARD
Design Front Middle Back Queue
MEDIUM
Design Excel Sum Formula
HARD