Prefix Sum | Difference Array | Tamil

🚀 Welcome to the DSA in Tamil Series! In this live session, we'll learn Difference Array , an advanced variation of Prefix Sum that helps solve Range Update problems efficiently. When multiple updates need to be applied over a range of indices, updating each element individually becomes inefficient. The Difference Array technique allows us to perform each range update in constant time and reconstruct the final array using Prefix Sum. This technique is commonly used in coding interviews, competitive programming, and real-world scenarios involving bulk updates. 📖 What you'll learn in this session What is a Difference Array? Why do we need Difference Array? Building the Difference Array Performing Range Updates efficiently Reconstructing the original array using Prefix Sum Time & Space Complexity Whether you're preparing for coding interviews, learning DSA from scratch, or improving your problem-solving skills, this session will help you understand the concept with clear explanations and practical examples. ━━━━━━━━━━━━━━━━━━━━ 🎯 Who should watch? College Students Software Engineers preparing for interviews Beginners learning DSA Competitive Programmers ━━━━━━━━━━━━━━━━━━━━ ⏰ Timestamps 00:00 Intro 02:43 Revising Prefix Sum 09:20 Difference array 31:42 Maximum Population Year 42:33 Corporate Flight Bookings 50:24 Car Pooling 58:44 Q&A ━━━━━━━━━━━━━━━━━━━━ 📺 DSA in Tamil Playlist    • LEARN DSA IN TAMIL      • Array Implementation Problem      • String Implementation Problems   Join the WhatsApp channel: https://whatsapp.com/channel/0029VbDF... ━━━━━━━━━━━━━━━━━━━━ 🌐 Connect with me 🔗 LinkedIn:   / rohinthr   🔗 LeetCode: https://leetcode.com/u/rohinth076/ 🔗 Twitter: https://x.com/rohinth_r ━━━━━━━━━━━━━━━━━━━━ 👍 If you enjoy the session, don't forget to Like , Share , and Subscribe to support the channel! #DSA #PrefixSum #RangeSum #CodingInterview #CompetitiveProgramming #TamilProgramming #DSAInTamil #Algorithms #LeetCode #ProblemSolving