Master Binary Search: Templates, Rotated Arrays, Median of Two Sorted Arrays, and Binary Search on AnswerBinary search for interview preparation with leetcode problemsJun 2, 2026·13 min read
Sliding Window, Two Pointers, and Prefix Sums: The Pattern Trio That Cracks Array InterviewsThere's a moment every developer hits — usually mid-interview — where they realize a brute-force nested loop is the wrong instinct. The array is in front of you, the constraint is clear, but somethingMay 7, 2026·22 min read·16
Big-O Complexity: The Complete Guide Every Developer Must KnowEvery developer writes code. But not every developer understands why their code slows to a crawl on large inputs — or why their interviewer winces at a nested loop. Big-O notation is the language thatMay 2, 2026·14 min read·155
The 20-Hour Principle: A Rigorous Framework for Mastering Advanced Data Structures and AlgorithmsThe Myth We Were Sold For decades, the prevailing cultural narrative around skill acquisition has been anchored to a single, intimidating figure: 10,000 hours. Popularized by Malcolm Gladwell's OutlieApr 29, 2026·11 min read·39
Taming Form State with useReducer: From Messy to Production-ReadyIf you've already read the theory, you know that useReducer shines when state transitions are complex and interdependent. Forms are one of the best real-world cases for it. Let's build something that Mar 28, 2026·9 min read·12
useReducer in React: A Simple Counter, Then the Bigger PictureWhy Does useReducer Even Exist? Before writing a single line of code, let's build the right mental model. You already know useState. It's clean, it's simple, and it works great when a piece of state iMar 21, 2026·9 min read·17
useContext in Action: Consuming Context Like a Pro - React GuideMaster the useContext hook in React. Learn how to manage global state efficiently, avoid prop drilling, and implement the Context API with real-world patterns.Mar 15, 2026·11 min read·5
