Sliding Window, Two Pointers, and Prefix Sums: The Pattern Trio That Cracks Array InterviewsMay 7, 2026·22 min read·15
Monotonic Stack: The Complete Pattern GuideWhat is a Monotonic Stack? A monotonic stack is a regular stack with one rule: elements inside it are always in a consistent order — either strictly increasing or strictly decreasing from bottom to toMay 16, 2026·17 min read·4
The 20-Hour Principle: A Rigorous Framework for Mastering Advanced Data Structures and AlgorithmsApr 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
React useContext Hook: Definition, Use Cases & Performance TipsMaster the React useContext hook with clear examples, real-world use cases, and performance best practices. Learn how to eliminate prop drilling and build cleaner, scalable React apps.Mar 12, 2026·9 min read·18
Heaps & Priority Queue in DSALearn Heaps & Priority Queues in DSA using PythonMar 8, 2026·6 min read·5
Linked Lists in DSAUnlike arrays, where insertion in the middle takes O(N) time due to shifting elements, a Linked List allows insertion without shifting. In this blog, we will use LL as short form for Linked List. WhatFeb 28, 2026·3 min read·3
