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LeetCode Problem 9 | Palindrome Number | Explained Step by Step in C++ ๐Ÿš€

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May 15, 2026
5:07

๐Ÿš€ Welcome to another LeetCode problem-solving video! In this tutorial, we solve LeetCode Problem 9 โ€” Palindrome Number using C++ with a simple, efficient, and beginner-friendly approach. A palindrome number is a number that remains the same when its digits are reversed. In this video, I explain the complete logic step by step with dry run examples so you can understand the concept clearly and improve your DSA problem-solving skills. โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ“Œ Problem Details โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โœ… LeetCode 9 - Palindrome Number โœ… Difficulty: Easy โœ… Language: C++ โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โฑ๏ธ Video Timestamps โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” 00:00 - Introduction 00:32 - Problem Statement 01:25 - Understanding Palindrome Numbers 02:40 - Approach & Logic 04:55 - Dry Run Example 07:15 - C++ Code Explanation 10:20 - Time & Space Complexity 11:05 - Final Output Testing 11:45 - Interview Tips & Conclusion โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ’ก What Youโ€™ll Learn โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โœ”๏ธ How to identify palindrome numbers โœ”๏ธ Beginner-friendly C++ implementation โœ”๏ธ Step-by-step explanation โœ”๏ธ Efficient logic building โœ”๏ธ Interview preparation techniques โœ”๏ธ Time Complexity Analysis โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿง  Concepts Covered โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โ€ข Number Reversal โ€ข Mathematical Operations โ€ข Conditional Statements โ€ข Logic Building โ€ข DSA Basics โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ”ฅ Why This Problem is Important? โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” This is one of the most popular beginner-level LeetCode problems and is frequently asked during coding interviews and online assessments. Solving problems like this helps strengthen your fundamentals in Data Structures & Algorithms. โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ“Œ Code & Practice โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ’ป Practice Here: https://leetcode.com/problems/palindrome-number/ โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐ŸŒ Connect With Me โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ’ผ LinkedIn: https://www.linkedin.com/in/harshitpandya2911/ ๐Ÿ™ GitHub: https://github.com/harshitpandya-cg/LeetCode-Solutions/tree/main/0009-palindrome-number ๐ŸŽฏ LeetCode: https://leetcode.com/u/harshit_pandya01/ โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ“ข Support the Channel โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” If you found this video helpful: ๐Ÿ‘ Like the video ๐Ÿ’ฌ Comment your approach ๐Ÿ“ค Share with friends ๐Ÿ”” Subscribe for more LeetCode & DSA content โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿท๏ธ Hashtags โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” #leetcode #leetcode9 #palindromenumber #cpp #cplusplus #dsa #algorithms #coding #programming #codinginterview #leetcodeeasy #softwareengineer #placements #datastructures #competitiveprogramming

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LeetCode Problem 9 | Palindrome Number | Explained Step by Step in C++ ๐Ÿš€ | NatokHD