Interactive blog posts on computer science and web development by Biswajit Rath.
Mar 09, 2026
A deep, practical walkthrough of how LRU caches actually work, how to build one correctly in Java with a HashMap and a doubly linked list, and the subtle mistakes that cause bugs in interviews and in production.
A practical guide to the 10 REST API design mistakes that create confusion, break clients, and add technical debt, with clear fixes for each.
Nov 02, 2025
Discover how TOON (Token-Oriented Object Notation) can reduce your LLM API costs by 30-60% through smarter data formatting designed specifically for AI applications.
Aug 10, 2025
A deep technical yet approachable breakdown of how massive platforms check username availability instantly while ensuring accuracy at scale.
Aug 07, 2025
Understand the key differences between encoding, hashing, and encryption - including how they work, their use cases, and real-world examples.
Nov 26, 2024
A thrilling journey through the Smart India Hackathon—intense challenges, last-minute changes, and an unexpected yet unforgettable win!