Data-Structure-Algorithms-LLD-HLD

Data Structure Resources

Theory with Practice Problems

For Readers

1. Competitive Programming (DS and Algo) Topcoder Algo-Ds-List
2. CodeForces Blogs List
3. HackerEarth Tutorials List
4. TopCoder DP Article
5. InterviewBit Programming Path
6. GeekForGeeks Algo
7. GeekForGeeks DS
8. List of Interview Questions based on Company
9. List of FAANG Questions seperated by Company
10. Dynamic Programming Patterns Leetcode
11. Dynamic Programming Pattern LeetCode for Beginners
12. Dynamic Programming Categorisation
13. Bit Manipulation All Tricks
14. Binary Search All Patterns LeetCode
15. Sliding Window Pattern LeetCode
16. Graph Pattern LeetCode
17. Cloning Problems LeetCode
18. DS Algo Leetcode guide
19. Cp Algorithms site
20. Tech Interview Guide
21. LeetCode DS Algo Guide
22. Github Repo Top University Courses Compilation
23. Dp Patterns LeetCode Article

For Video Enthusiasts

1. FreeCodeCamp DSA
2. MIT Course on ALGO
3. Abdul Bari
4. William Fiset

Places to Find Interview Experiences

1. GeeksForGeeks Interview Experience grouped by Company
2. LeetCode Interview Discussion Section

Compensation Related Information

1. LeetCode Compensation Section
2. Levels.fyi
3. LinkedIn Salaries
4. GlassDoor Reviews and Salaries
5. Blind

Solving Practice Problems

1. CodeChef
2. GeeksForGeeks Practice
3. Leetcode
4. Hacker Rank
5. Hacker Earth

Low Level Design

1. Work@Tech
2. Github Repo
3. Design Patterns For Low Level Design
4. Low Level Primer
5. Design Patterns Simplified
6. Video Tutorials

Low Level Design Questions and Solution

1. Snake and Ladder
2. Wordle
3. BattleShip
4. Logger
5. LLD Caching
6. Ticket Booking System
7. Cab Booking System
8. Car Rental
9. Distributed Id generation

High Level System Design

For Readers

1. Donne Martin System Design
2. High Scalability Website
3. System Design Collection of Concepts
4. System Design Architecture Diagrams
5. Work@tech Collection of Tech Blogs
6. System Design Collection of Concepts
7. Azure architecture center
8. System design questions collection
9. System Design Best Papers and Talks
10. Company and Individual Blogs
11. Just Another Collection
12. Martin Fowler
13. Baisc Concepts Nicely Explained
14. AWS System Design Concepts Compilation
15. Byte Sized System Design by Alex Xu

For Video Enthusiasts

1. Gaurav Sen
2. Code Karle
3. InfoQ
4. Backend Engineering 101
5. Alex Xu Byte Byte Go
6. Database Depth CMU

DataBase Designs, SQL vs NoSQl

1. Vertabelo Database Articles
2. InDepth Comparison SQL Vs NOSQL

Github Repos for all things Software

1. Coding Interview University
2. FreeCodeCamp
3. Programming Ebooks Repo
4. List of Public Apis
5. Developer RoadMap Repo
6. Awesome Web Resources
7. Customised interview preparation based on the time you have

Interview Day Help

1. Questions to Ask Yourself while solving Problems

System Design Fundamentals

• Content Delivery Network (CDN)
• Caching
• Caching Patterns
• Distributed Caching
• Latency vs Throughput
• CAP Theorem
• [Event-Driven Architecture: Request/Reply Processing]https://www.developertoarchitect.com/lessons/lesson1.html
• How Kafka Differs From Standard Messaging
• Load Balancing
• ACID Transactions
• SQL vs NoSQL
• Consistent Hashing
• Database Index
• Rate Limiting
• Microservices Architecture
• Microservices Guidelines
• Strong vs Eventual Consistency
• Consistency Patterns
• REST vs RPC
• Batch Processing vs Stream Processing
• HeartBeat
• Circuit Breaker
• Idempotency
• Database Scaling
• Data Replication
• Data Redundancy
• Database Sharding
• Fault Tolerance
• Failover
• Proxy Server
• Domain Name System (DNS)
• Message Queues
• WebSockets
• Bloom Filters
• Consensus Algorithms
• Gossip Protocol
• API Gateway
• Distributed Locking
• Distributed Tracing
• Checksum

System Design Interview Problems

Easy

• Design Leaderboard
• Design URL Shortener like TinyURL
• Design Text Storage Service like Pastebin
• Design Content Delivery Network (CDN)
• Design Parking Garage
• Design Vending Machine
• Design Distributed Key-Value Store
• Design Distributed Cache
• Design Distributed Job Scheduler
• Design Authentication System
• Design Unified Payments Interface (UPI)

Medium

• Design Instagram
• Design Tinder
• Design WhatsApp
• Design Facebook
• Design Twitter
• Design Reddit
• Design Netflix
• Design Youtube
• Design Google Search
• Design E-commerce Store like Amazon
• Design Spotify
• Design TikTok
• Design Shopify
• Design Airbnb
• Design Autocomplete for Search Engines
• Design Rate Limiter
• Design Distributed Message Queue like Kafka
• Design Flight Booking System
• Design Online Code Editor
• Design Stock Exchange System
• Design an Analytics Platform (Metrics & Logging)
• Design Notification Service
• Design Payment System

Hard

• Design Slack
• Design Live Comments
• Design Distributed Counter
• Design Location Based Service like Yelp
• Design Uber
• Design Food Delivery App like Doordash
• Design Google Docs
• Design Google Maps
• Design Zoom
• Design File Sharing System like Dropbox
• Design Ticket Booking System like BookMyShow
• Design Distributed Web Crawler
• Design Code Deployment System
• Design Distributed Cloud Storage like S3
• Design Distributed Locking Service

Must-Read Engineering Articles

• Building and Operating S3 the biggest storage system
• Modern Load Balancing and Networking by the creator of Envoy
• The Log: What every software engineer should know about real-time data's unifying abstraction
• Keeping Netflix reliable using Load Shedding
• How Discord stores billions of messages
• How Discord stores trillions of messages
• Netflix Fault Tolerance in a high volume distributed system
• How Pinterest runs Kafka at scale
• How browsers work
• Practical Guide to Kafka Storage Internals
• Building In-Video Search
• How Canva scaled Media uploads from Zero to 50 Million per Day
• How Airbnb avoids double payments in a Distributed Payments System
• Airbnb Delayed Job Queuing System
• Stripe’s payments APIs - The first 10 years
• Real time messaging at Slack

Please star ⭐ the repo if you find it helpfull :)