Vis
Code
Design
Build a data structure with a given API.
271.
Encode and Decode Strings
Premium
Medium
297.
Serialize and Deserialize Binary Tree
Hard
208.
Implement Trie (Prefix Tree)
Medium
232.
Implement Queue using Stacks
Easy
155.
Min Stack
Medium
981.
Time Based Key-Value Store
Medium
146.
LRU Cache
Medium
295.
Find Median from Data Stream
Hard
211.
Design Add and Search Words Data Structure
Medium
703.
Kth Largest Element in a Stream
Easy
355.
Design Twitter
Medium
2013.
Detect Squares
Medium