Aug 19, 2025 · 14 min read · 🚀 Why This Matters Picture this: you're in a coding interview, and the interviewer asks, "Find the sum of elements between indices l and r for multiple queries." Your first instinct might be to loop through the range each time, but with large arrays...
Join discussionJul 29, 2025 · 20 min read · 🎯 Introduction: Why Master In-Place Reversal? Picture this: You’re in a DSA interview at a top tech company like Google or Amazon. The interviewer throws you a curveball: "Given a singly linked list, reverse it in-place using O(1) space." "Can you e...
Join discussionJul 19, 2025 · 4 min read · Recursion isn’t just some abstract idea — it’s like a toolbox filled with patterns. A lot of the problems that seem daunting in recursion can actually be solved once you identify the right pattern to use. In this post, I’m going to walk you through 1...
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Jun 24, 2025 · 8 min read · Welcome to this week's #TutorialsTuesday series! Last week, we kicked off our journey into Data Structures and Algorithms (DSA) problem-solving and introduced the concept of DSA patterns. As promised, every Tuesday, we're diving deep into one specifi...
Join discussionApr 22, 2025 · 5 min read · Whether you're preparing for coding interviews or just want to become a better problem solver, mastering patterns in Data Structures and Algorithms (DSA) can be a game-changer. Instead of memorizing solutions to hundreds of problems, recognize the un...
Join discussionJan 25, 2025 · 3 min read · Anagrams are words formed by rearranging the letters of another word, like "eat", "tea", and "ate". Grouping anagrams efficiently is a common coding challenge in interviews and competitive programming. In this article, we’ll explore two approaches: ...
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Dec 17, 2024 · 5 min read · Welcome to the first article in our DSA Patterns series, where we discuss commonly used patterns to solve coding problems, particularly for interviews. In this blog, we will break down the Prefix Sum with Hash Map technique—a powerful approach for so...
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