LeetCode 1323 | Maximum 69 Number 🔥 | Easy C++ Solution + Explanation

In this video, we solve LeetCode Problem 1323 – Maximum 69 Number using C++. 🚀 This is a simple and beginner-friendly problem that teaches an important concept of greedy logic and digit manipulation. We explain the intuition behind the solution and implement an optimized approach step by step. 🔍 Problem Overview: You are given a positive number consisting only of digits 6 and 9. You can change at most one digit from 6 to 9 to make the number as large as possible. The goal is to return the maximum number possible after the change. 🧠 What you’ll learn in this video: Understanding greedy approach Digit manipulation techniques Why changing the first 6 gives the maximum result Step-by-step dry run with examples Clean and optimized C++ implementation 💡 Key Insight: To maximize the number, changing the leftmost 6 into 9 gives the highest possible value because digits on the left have greater impact on the overall number. ⚙️ Approach Covered: ✔ Convert the number into string ✔ Find the first occurrence of 6 ✔ Replace it with 9 ✔ Return the updated number 👨‍💻 Language Used: C++ ✔ Beginner-friendly explanation ✔ Interview-oriented approach 📌 Why watch this video? Great problem for beginners Helps build greedy thinking Easy to understand and implement Useful for coding interview preparation Leetcode : https://leetcode.com/u/manan01127/ LinkdeIn : https://www.linkedin.com/in/manan-patel-557535390/ Github : https://github.com/patelmanan112 🔥 If you enjoy LeetCode solutions and coding tutorials, make sure to Like, Share, and Subscribe for more daily problem-solving content! #LeetCode #DSA #Cpp #Coding #Algorithms #ProblemSolving #CodingInterview #LearnToCode #100DaysOfCode 🚀