6 min read Two Pointers and Sliding Window Interview Patterns Two pointers and sliding window are techniques that turn O(n²) brute-force solutions into […] Read article
5 min read System Design Interview: Design a Distributed Job Scheduler A distributed job scheduler runs tasks reliably across a cluster of machines. […] Read article
5 min read System Design Interview: Design a Live Video Streaming Platform (Twitch) Live streaming is fundamentally different from video-on-demand (Netflix/YouTube). A streamer […] Read article
4 min read Dynamic Programming Patterns II: Knapsack, LCS, Edit Distance Beyond simple memoization, there are classic DP problem families where recognizing the […] Read article
4 min read System Design: Design a Social Media Feed (Twitter/Instagram) News feed design is one of the most comprehensive system design problems […] Read article
4 min read System Design: Design a Ride-Sharing App (Uber/Lyft) Designing Uber or Lyft is one of the most popular system design interview […] Read article
5 min read Recursion and Backtracking Interview Patterns Backtracking is systematic exhaustive search with pruning. It builds candidates incrementally and abandons (backtracks) as […] Read article
4 min read System Design: Design a Ticket Booking System (Ticketmaster/Fandango) A ticket booking system is a classic system design problem involving seat […] Read article
4 min read Two Pointers and Sliding Window Interview Patterns Two-pointer techniques transform O(n²) brute-force solutions into O(n) elegant ones. They are among […] Read article
5 min read Graph Algorithms Interview Patterns: BFS, DFS, Dijkstra & More Graph problems appear in roughly 25% of FAANG algorithm interviews. Mastering […] Read article