Tag
© 2026 Hashnode
🧬 1. What is an LRU Cache? LRU Cache stands for "Least Recently Used" cache. Think of it as a smart storage box that remembers what you used last and throws away the oldest stuff when it gets full. 📦 Easy example: Your phone only shows your last 5...

What is an LRU Cache? In many systems such as browsers, operating system memory management, and databases, we need to keep recently used items easily accessible while discarding the least used ones. That’s where LRU (Least Recently Used) Cache comes ...
