Shortest Path Algorithm Interview Patterns (2025)
8 min read Shortest Path Algorithm Interview Patterns (2025) Shortest path problems are fundamental in graph interviews. Knowing when to apply BFS, Dijkstra, […] Read article
8 min read Shortest Path Algorithm Interview Patterns (2025) Shortest path problems are fundamental in graph interviews. Knowing when to apply BFS, Dijkstra, […] Read article
7 min read Low-Level Design: Tic-Tac-Toe Game Tic-Tac-Toe is a common LLD warm-up question that tests your ability to model game state, validate Read article
8 min read System Design Interview: Design Twitter / X Timeline Designing Twitter’s home timeline is one of the most-cited system design interview Read article
8 min read Low-Level Design: Movie Ticket Booking System The Movie Ticket Booking system (like BookMyShow or Fandango) is a popular LLD interview Read article
9 min read System Design Interview: Design WhatsApp / Real-Time Messaging Designing a real-time messaging system like WhatsApp or iMessage is a top-tier Read article
6 min read Low-Level Design: Snake and Ladder Game Snake and Ladder (also called Chutes and Ladders) is a popular LLD interview problem Read article
8 min read Low-Level Design: ATM Machine The ATM Machine is a classic LLD problem that tests state machine design, OOP modeling, and Read article
7 min read System Design Interview: Design Instagram / Photo Sharing Platform Designing Instagram tests your knowledge of media storage, feed generation, CDN Read article
7 min read Low-Level Design: Hotel Booking System (OOP) The Hotel Booking System is a rich LLD problem that combines real-world business rules Read article
11 min read Low-Level Design: Chess Game Designing a chess game is a classic LLD interview question that tests your ability to model Read article
9 min read String Manipulation Interview Patterns: Complete Guide (2025) String problems are ubiquitous in coding interviews — from anagram detection to complex Read article
9 min read System Design Interview: Design a Distributed Messaging System (Apache Kafka) Understanding distributed messaging systems is essential for senior engineering roles. Read article
10 min read Low-Level Design: Library Management System (OOP Interview) The Library Management System is a comprehensive LLD interview problem testing your ability Read article
7 min read System Design Interview: Design a Social Graph (Twitter Follow / LinkedIn Connect) Social graph design is a foundational problem asked Read article
9 min read System Design Interview: Design Dropbox / Google Drive (Cloud File Storage) Cloud file storage like Dropbox or Google Drive is Read article
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