LRU Cache Implementation from Scratch: Full Code Walkthrough
A detailed guide to implementing an LRU cache from scratch using a doubly linked list and hash map. We walk through the code, explain design trade-offs, and show real-world use cases.
System Design
Hash Table vs. Binary Search Tree: When to Use Each
Hash tables and binary search trees are both fundamental data structures for storing key-value pairs. This article compares their performance, ordering guarantees, memory usage, and collision strategies to help you decide when to use each.