Understanding algorithms and data structures is key to writing efficient code. This section breaks down classic algorithms—searching, sorting, graph traversal—with step-by-step explanations and complexity analysis.

Algorithms

The Battle of 3 Kings - Binary Search vs Hashmap vs Linear Search

Binary search, hashmap lookup, and linear search compared: Big O costs, when each wins, and practical tips for coding interviews and production performance tuning.
2 Jan 2025

Turtle and Hare Algorithm: Cycle Detection with Examples and Use Cases

Floyd’s tortoise-and-hare algorithm for cycle detection: how two pointers work, walkthrough examples, and real uses in linked lists, sequences, and interview problems.
2 Mar 2025
Algorithms and data structures: complexity, classic problems, and step-by-step examples.