Data Structure

Basic Calculator

1146.Snapshot-Array

1152.Analyze-User-Website-Visit-Pattern

1167.Minimum-Cost-to-Connect-Sticks

1172.Dinner-Plate-Stacks

1236.Web-Crawler

128.Longest-Consecutive-Sequence

146.LRU-Cache

155.Min-Stack

158.Read-N-Characters-Given-Read4-II---Call-multiple-times

225.Implement-Stack-using-Queues

232.Implement-Queue-using-Stacks

253.Meeting-Rooms-II

263.Ugly-Number

271.Encode-and-Decode-Strings

[28.Implement-strStr()](Data-Structure/28.Implement-strStr().md)

281.Zigzag-Iterator

284.Peeking-Iterator

295.Find-Median-from-Data-Stream

314.Binary-Tree-Vertical-Order-Traversal

332.Reconstruct-Itinerary

341.Flatten-Nested-List-Iterator

346.Moving-Average-from-Data-Stream

348.Design-Tic-Tac-Toe

353.Design-Snake-Game

359.Logger-Rate-Limiter

362.Design-Hit-Counter

[380.Insert-Delete-GetRandom-O(1)](Data-Structure/380.Insert-Delete-GetRandom-O(1).md)

[381.Insert-Delete-GetRandom-O(1)---Duplicates-allowed](Data-Structure/381.Insert-Delete-GetRandom-O

384.Shuffle-an-Array

41.First-Missing-Positive

460.LFU-Cache

[470.Implement-Rand10()-Using-Rand7()](Data-Structure/470.Implement-Rand10()-Using-Rand7().md)

49.Group-Anagrams

523.Continuous-Subarray-Sum

528.Random-Pick-with-Weight

535.Encode-and-Decode-TinyURL

545.Boundary-of-Binary-Tree

572.Subtree-of-Another-Tree

588.Design-In-Memory-File-System

622.Design-Circular-Queue

642.Design-Search-Autocomplete-System

692.Top-K-Frequent-Words

706.Design-HashMap

707.Design-Linked-List

729.My-Calendar-I

731.My-Calendar-II

759.Employee-Free-Time

794.Valid-Tic-Tac-Toe-State

84.Largest-Rectangle-in-Histogram

843.Guess-the-Word

900.RLE-Iterator

937.Reorder-Data-in-Log-Files

981.Time-Based-Key-Value-Store

99.Recover-Binary-Search-Tree

Add And Search Word Data Structure Design

Heapify

Max Tree

Rehashing

Subarray Sum Zero