LeetCode 2300 — Successful Pairs of Spells and Potions | Brute Force & Optimal Solution Explained

When you combine the magical powers of spells and potions, you either fail miserably or succeed spectacularly — and in this LeetCode problem, we calculate exactly how many successful combinations exist. Let’s break down the problem, understand the logic, and implement both brute force and optimal solutions step-by-step. Problem Link: https://leetcode.com/problems/successful-pairs-of-spells-and-potions/ Problem Description You are … Continue reading LeetCode 2300 — Successful Pairs of Spells and Potions | Brute Force & Optimal Solution Explained

Building an Idempotent Payment System with Spring Boot & React

Payment systems are at the core of modern web applications, but they come with a tricky problem: duplicate transactions. Whether it’s a user accidentally clicking “Pay” twice or a network retry causing multiple API calls, duplicate charges can quickly erode trust and create operational headaches. In this blog, I’ll walk you through a full-stack idempotency … Continue reading Building an Idempotent Payment System with Spring Boot & React

Introduction to Data Structures & Algorithms

In the world of software development, Data Structures and Algorithms (DSA) form the backbone of efficient programming. Whether you’re building a small utility script or designing a high-scale application like a search engine, understanding DSA helps you write code that is not only correct but also fast, memory-efficient, and scalable. Why DSA Matters Performance Optimization … Continue reading Introduction to Data Structures & Algorithms