Low Level Design (LLD)
Object-oriented design, design patterns, SOLID principles, and coding up scalable components. Practice common LLD problems for interviews.
Problems
- Design Parking Lot
- Design Elevator
- Design Library Management System
- Design Tic-Tac-Toe
- Design Chess
- Design Snake and Ladder
- Design ATM
- Design Vending Machine
- Design Movie Ticket Booking System
- Design Hotel Booking System
- Design Splitwise
- Design Amazon Locker
- Design Car Rental System
- Design Online Shopping Cart
- Design File System
Solutions & diagrams
Each problem links to a page where you can add class diagrams, sequence diagrams, and notes. Explore Theory Notes for OOPS and design patterns.