C++ DSA | Part-2 | Prefix Sum Leetcode - Pseudocode, Dry Run & Code | Data Structure & Algorithms

🚀 C++ DSA Series Video Schedule Update 🚀

C++ DSA series video will be uploaded every 𝗠𝗼𝗻𝗱𝗮𝘆, 𝗪𝗲𝗱𝗻𝗲𝘀𝗱𝗮𝘆, 𝗮𝗻𝗱 𝗙𝗿𝗶𝗱𝗮𝘆 at 𝟵:𝟬𝟬 𝗣𝗠 ⏰
C++ DSA Prefix Sum | Master Subarray & Range Sum Problems | LeetCode 2025
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Welcome back to another power-packed session in our C++ DSA series!
In this video, we explore the Prefix Sum technique — one of the most powerful tools for solving range-based problems on arrays efficiently.

Whether it’s calculating subarray sums, optimizing brute force loops, or solving tricky LeetCode problems — Prefix Sum is a must-know for coding interviews and competitive programming!
🔍 What’s Covered in This Video:
✅ What is the Prefix Sum Technique?
✅ Why Prefix Sum is Useful in Array-based Problems
✅ Visual Dry Run with Detailed Explanation
✅ Time and Space Complexity Breakdown
✅ Live LeetCode Problem Solving
✅ Step-by-step C++ Implementation
✅ Handling Edge Cases and Common Pitfalls
✅ Real Interview-Level Coding Questions
📚 What You’ll Learn:
■ How to implement prefix sum for both 1D and 2D arrays
■ When and why to use prefix sum instead of brute force
■ Problem-solving patterns using prefix sum
■ Optimized and clean code practices in C++
■ Placement-ready strategies for top companies

✅ Ideal For:
● Beginners Learning C++ & DSA
● College Students Preparing for Placements
● LeetCode, GFG, and Coding Contest Enthusiasts
● Anyone Who Wants to Boost Problem-Solving Skills
○ Github Repo(Source Code & PDF)👇
https://github.com/LearnCodingOfficial/CPP-DSA

💬 Drop your doubts or queries in the comments – I reply to everyone!!
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🔖 Hashtags
#PrefixSum #Cpp #DSA #CppDSASeries #LeetCode2025 #ArrayProblems #RangeSumQueries #PrefixSumTechnique #CppForBeginners #DSA2025 #LearnCoding #CppInterviewPrep #CPlusPlusDSA #CppPlacementSeries #FAANGPrep #CodingInterviews #DSAWithC++ #CppLeetCodePrep #CppStepByStep #DSAArrays
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Creator 🧏‍♂️:- Ankit

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Thank You 😊
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Видео C++ DSA | Part-2 | Prefix Sum Leetcode - Pseudocode, Dry Run & Code | Data Structure & Algorithms канала Learn Coding