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Design
Design
0/15 solved
LRU Cache
MEDIUM
Min Stack
MEDIUM
Serialize and Deserialize Binary Tree
HARD
Insert Delete GetRandom O(1)
MEDIUM
Binary Search Tree Iterator
MEDIUM
Design Add and Search Words Data Structure
MEDIUM
Design HashMap
EASY
Flatten Nested List Iterator
MEDIUM
Insert Delete GetRandom O(1) - Duplicates allowed
HARD
All O`one Data Structure
HARD
Max Stack
HARD
Shuffle an Array
MEDIUM
Shortest Word Distance II
MEDIUM
Two Sum III - Data structure design
EASY
Count Integers in Intervals
HARD