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https://github.com/ashishps1/awesome-low-level-design

This repository contains low level design resources to improve coding skills and prepare for interviews.
https://github.com/ashishps1/awesome-low-level-design

List: awesome-low-level-design

awesome design-patterns interview interview-practice interview-questions low-level-design machine-coding object-oriented-programming oops solid-principles uml

Last synced: about 2 months ago
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This repository contains low level design resources to improve coding skills and prepare for interviews.

Host: GitHub
URL: https://github.com/ashishps1/awesome-low-level-design
Owner: ashishps1
License: gpl-3.0
Created: 2023-11-17T10:15:12.000Z (10 months ago)
Default Branch: main
Last Pushed: 2024-04-07T17:54:08.000Z (5 months ago)
Last Synced: 2024-04-12T07:01:35.000Z (5 months ago)
Topics: awesome, design-patterns, interview, interview-practice, interview-questions, low-level-design, machine-coding, object-oriented-programming, oops, solid-principles, uml
Homepage: https://twitter.com/ashishps_1
Size: 171 KB
Stars: 2,198
Watchers: 33
Forks: 603
Open Issues: 1
Metadata Files:
- Readme: README.md
- License: LICENSE

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This repository contains resources to learn Low Level Design (LLD) / Object Oriented Design (OOD) and prepare for interviews.

## 📌 Fundamental Concepts

- [Basics OOP Concepts](https://blog.algomaster.io/p/basic-oop-concepts-explained-with-code)

- [SOLID Principles with Pictures](https://medium.com/backticks-tildes/the-s-o-l-i-d-principles-in-pictures-b34ce2f1e898)

- [SOLID Principles with Code](https://blog.algomaster.io/p/solid-principles-explained-with-code)

- [DRY Principle](https://blog.algomaster.io/p/082450d8-0e7b-4447-a8dc-b7308e45f048)

- [YAGNI Principle](https://blog.algomaster.io/p/8c3c7da7-885b-4a9c-a6e4-70ee02de4772)

- [KISS Principle](https://blog.algomaster.io/p/21b57678-b351-4ed4-b390-3b6308af2f7d)

- [Coursera - Object-Oriented Design](https://www.coursera.org/learn/object-oriented-design)

## ⚙️ Design Patterns

### Creational Patterns

- [Singleton](https://blog.algomaster.io/p/singleton-design-pattern)

- [Factory Method](https://refactoring.guru/design-patterns/factory-method)

- [Abstract Factory](https://refactoring.guru/design-patterns/abstract-factory)

- [Builder](https://refactoring.guru/design-patterns/builder)

- [Prototype](https://refactoring.guru/design-patterns/prototype)

### Structural Patterns

- [Adapter](https://refactoring.guru/design-patterns/adapter)

- [Facade](https://refactoring.guru/design-patterns/facade)

- [Decorator](https://refactoring.guru/design-patterns/decorator)

- [Composite](https://refactoring.guru/design-patterns/composite)

### Behavioral Patterns

- [Strategy](https://refactoring.guru/design-patterns/strategy)

- [Iterator](https://refactoring.guru/design-patterns/iterator)

- [Observer](https://refactoring.guru/design-patterns/observer)

- [Template Method](https://refactoring.guru/design-patterns/template-method)

- [Command](https://refactoring.guru/design-patterns/command)

- [State](https://refactoring.guru/design-patterns/state)

## 🗂️ UML

- [Class Diagram](https://blog.algomaster.io/p/uml-class-diagram-explained-with-examples)

- [Use Case Diagram](https://www.visual-paradigm.com/guide/uml-unified-modeling-language/what-is-use-case-diagram/)

- [Sequence Diagram](https://www.visual-paradigm.com/guide/uml-unified-modeling-language/what-is-sequence-diagram/)

- [Activity Diagram](https://www.visual-paradigm.com/guide/uml-unified-modeling-language/what-is-activity-diagram/)

- [State Machine Diagram](https://www.visual-paradigm.com/guide/uml-unified-modeling-language/what-is-state-machine-diagram/)

### ✅ [How to Answer a LLD Interview Problem](https://blog.algomaster.io/p/how-to-answer-a-lld-interview-problem)



## 💻 Low Level Design Interview Problems

### Easy

- [Design Parking Lot](problems/parking-lot.md)

- [Design a Vending Machine](problems/vending-machine.md)

- [Design Stack Overflow](problems/stack-overflow.md)

- [Design Logging Framework](problems/logging-framework.md)

- [Design Coffee Vending Machine](problems/coffee-vending-machine.md)

- [Design Traffic Signal Control System](problems/traffic-signal.md)

- [Design a Task Management System](problems/task-management-system.md)

### Medium

- [Design Pub Sub System](problems/pub-sub-system.md)

- [Design Tic Tac Toe Game](problems/tic-tac-toe.md)

- [Design Car Rental System](problems/car-rental-system.md)

- [Design an ATM](problems/atm.md)

- [Design Hotel Management System](problems/hotel-management-system.md)

- [Design LinkedIn](problems/linkedin.md)

- [Design a Social Network like Facebook](problems/social-networking-service.md)

- [Design an Elevator System](problems/elevator-system.md)

- [Design a Library Management System](problems/library-management-system.md)

- [Design Restaurant Management System](problems/restaurant-management-system.md)

- [Design Airline Management System](problems/airline-management-system.md)

- [Design a Digital Wallet System](problems/digital-wallet-system.md)

- [Design an Online Auction System](problems/online-auction-system.md)

- [Design a Concert Ticket Booking System](problems/concert-ticketing-system.md)

- [Design a Cache using LRU Eviction Policy](problems/lru-cache.md)

### Hard

- [Design Movie Ticket Booking System](problems/movie-ticket-booking-system.md)

- [Design Splitwise](problems/splitwise.md)

- [Design a Snake and Ladder game](problems/snake-and-ladder.md)

- [Design Online Shopping System like Amazon](problems/online-shopping-service.md)

- [Design Online Stock Brokerage System](problems/online-stock-brokerage-system.md)

- [Design CricInfo](problems/cricinfo.md)

- [Design Chess Game](problems/chess-game.md)

- [Design Ride-Sharing Service (like Uber)](problems/ride-sharing-service.md)

- [Design Online Food Delivery Service (like Swiggy)](problems/food-delivery-service.md)

- [Design Music Streaming Service (like Spotify)](problems/music-streaming-service.md)

- [Design University Course Registration System](problems/course-registration-system.md)

## 📇 Courses

- [Grokking the Low Level Design Interview Using OOD Principles](https://www.educative.io/courses/grokking-the-low-level-design-interview-using-ood-principles?aff=BZyO)

## 📚 Books

- [Head First Design Patterns](https://www.amazon.com/Head-First-Design-Patterns-Object-Oriented/dp/149207800X/)

- [Clean Code](https://www.amazon.com/Clean-Code-Handbook-Software-Craftsmanship/dp/B08X8ZXT15)

- [Refactoring: Improving the Design of Existing Code](https://www.amazon.com/Refactoring-Improving-Existing-Addison-Wesley-Signature/dp/0134757599/)

## Additional resources

- [Coursera - Design Patterns](https://www.coursera.org/learn/design-patterns)

- [Github - Awesome Design Patterns](https://github.com/DovAmir/awesome-design-patterns)