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DSA Corner

Dashboard Questions Topics Companies Sheets

Design

Topic

123 coding problems covering Design concepts. Master this topic and improve your problem-solving skills.

123

Problems

14

Easy

79

Medium

30

Hard

Difficulty

All123 Easy14 Medium79 Hard30

Status	Title	Video	Leetcode	Solve	Difficulty	Companies	Topics
	1476. Subrectangle Queries			Solve	Medium	Nuro	Array Design+1
	1500. Design a File Sharing System			Solve	Medium	Twitch	Data Stream Design+3
	1570. Dot Product of Two Sparse Vectors			Solve	Medium	Amazon+4	Array Design+2
	1586. Binary Search Tree Iterator II			Solve	Medium	Facebook	Binary Search Tree Binary Tree+4
	1600. Throne Inheritance			Solve	Medium	Google	Depth-First Search Design+2
	1628. Design an Expression Tree With Evaluate Function			Solve	Medium	Amazon	Array Binary Tree+4
	1670. Design Front Middle Back Queue			Solve	Medium	Amazon	Array Data Stream+3
	1756. Design Most Recently Used Queue			Solve	Medium	Google	Array Binary Indexed Tree+4
	1797. Design Authentication Manager			Solve	Medium	Twitter	Design Doubly-Linked List+2
	1804. Implement Trie II (Prefix Tree)			Solve	Medium	Apple+1	Design Hash Table+2
	1845. Seat Reservation Manager			Solve	Medium	Dropbox	Design Heap (Priority Queue)
	1865. Finding Pairs With a Certain Sum			Solve	Medium	Quora	Array Design+1
	1993. Operations on Tree			Solve	Medium	Google+1	Array Breadth-First Search+4
	2013. Detect Squares			Solve	Medium	Amazon+1	Array Counting+2
	2034. Stock Price Fluctuation			Solve	Medium	Google	Data Stream Design+3
	2043. Simple Bank System			Solve	Medium	PhonePe	Array Design+2
	2069. Walking Robot Simulation II			Solve	Medium	Square	Design Simulation
	2080. Range Frequency Queries			Solve	Medium	Quora	Array Binary Search+3
	2166. Design Bitset			Solve	Medium	Bloomberg	Array Design+2
	2241. Design an ATM Machine			Solve	Medium	Google+1	Array Design+1
	2336. Smallest Number in Infinite Set			Solve	Medium	Amazon+2	Design Hash Table+2
	2349. Design a Number Container System			Solve	Medium	Google	Design Hash Table+2
	2353. Design a Food Rating System			Solve	Medium	Amazon	Design Hash Table+2
	2408. Design SQL			Solve	Medium	Amazon	Array Design+2
	2424. Longest Uploaded Prefix			Solve	Medium	Google	Binary Indexed Tree Binary Search+5
	2502. Design Memory Allocator			Solve	Medium	Amazon	Array Design+2
	2526. Find Consecutive Integers from a Data Stream			Solve	Medium	Intel	Counting Data Stream+3
	2590. Design a Todo List			Solve	Medium	-	Array Design+3
	2671. Frequency Tracker			Solve	Medium	-	Design Hash Table

Subrectangle Queries

Medium📹 Video

Nuro

Array Design Matrix

Design a File Sharing System

Medium📹 Video

Twitch

Data Stream Design Hash Table+2

Dot Product of Two Sparse Vectors

Medium✓ Solution📹 Video

Amazon+4

Array Design Hash Table+1

Binary Search Tree Iterator II

Medium✓ Solution📹 Video

Facebook

Binary Search Tree Binary Tree Design+3

Throne Inheritance

Medium📹 Video

Google

Depth-First Search Design Hash Table+1

Design an Expression Tree With Evaluate Function

Medium📹 Video

Amazon

Array Binary Tree Design+3

Design Front Middle Back Queue

Medium📹 Video

Amazon

Array Data Stream Design+2

Design Most Recently Used Queue

Medium📹 Video

Google

Array Binary Indexed Tree Design+3

Design Authentication Manager

Medium📹 Video

Twitter

Design Doubly-Linked List Hash Table+1

Implement Trie II (Prefix Tree)

Medium✓ Solution📹 Video

Apple+1

Design Hash Table String+1

Seat Reservation Manager

Medium✓ Solution📹 Video

Dropbox

Design Heap (Priority Queue)

Finding Pairs With a Certain Sum

Medium📹 Video

Quora

Array Design Hash Table

Operations on Tree

Medium📹 Video

Google+1

Array Breadth-First Search Depth-First Search+3

Detect Squares

Medium📹 Video

Amazon+1

Array Counting Design+1

Stock Price Fluctuation

Medium✓ Solution📹 Video

Google

Data Stream Design Hash Table+2

Simple Bank System

Medium📹 Video

PhonePe

Array Design Hash Table+1

Walking Robot Simulation II

Medium📹 Video

Square

Design Simulation

Range Frequency Queries

Medium📹 Video

Quora

Array Binary Search Design+2

Design Bitset

Medium📹 Video

Bloomberg

Array Design Hash Table+1

Design an ATM Machine

Medium📹 Video

Google+1

Array Design Greedy

Smallest Number in Infinite Set

Medium✓ Solution📹 Video

Amazon+2

Design Hash Table Heap (Priority Queue)+1

Design a Number Container System

Medium📹 Video

Google

Design Hash Table Heap (Priority Queue)+1

Design a Food Rating System

Medium✓ Solution📹 Video

Amazon

Design Hash Table Heap (Priority Queue)+1

Design SQL

Medium📹 Video

Amazon

Array Design Hash Table+1

Longest Uploaded Prefix

Medium📹 Video

Google

Binary Indexed Tree Binary Search Design+4

Design Memory Allocator

Medium📹 Video

Amazon

Array Design Hash Table+1

Find Consecutive Integers from a Data Stream

Medium📹 Video

Intel

Counting Data Stream Design+2

Design a Todo List

Medium📹 Video

Array Design Hash Table+2

Frequency Tracker

Medium📹 Video

Design Hash Table

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