LeetCode 66 Plus One | Coding Interview Easy Problem in C++

In this video, we solve LeetCode 66 — Plus One using an optimized Array Traversal approach in C++ with a clean step-by-step explanation. At first, this problem may look very simple, but handling carry operations correctly makes it an important interview question. Once you understand how digits behave during addition, the entire logic becomes easy, efficient, and interview-friendly. In this walkthrough, you'll learn how to think like an interviewer expects — processing the number from right to left while handling carry generation efficiently. ✨ What You'll Learn In This Video 🔹 Understanding the Plus One Problem 🔹 How Carry Operations Work 🔹 Why We Traverse from Right to Left 🔹 Step-by-Step Dry Run 🔹 Special Case Handling (9 → 10) 🔹 Clean & Optimized C++ Solution 🔹 Time Complexity & Space Complexity 🔹 Interview Explanation Tips 📌 Problem Link https://leetcode.com/problems/plus-one/ 🎯 Why This Problem Matters This problem is one of the best beginner-friendly Array questions. It improves: ✔ Array Traversal Skills ✔ Carry Handling Logic ✔ Simulation Thinking ✔ Edge Case Problem Solving ✔ Interview Communication 🧠 Concepts Covered ✔ Arrays ✔ Simulation ✔ Carry Propagation ✔ Iteration Logic ✔ Time & Space Optimization ✔ C++ STL Basics 🌍 Find Me Online 💻 GitHub https://github.com/vedantxy 🏆 LeetCode Profile https://leetcode.com/u/Vedant_2403/ 💼 LinkedIn   / vedant-patel-3b6a4636a   🐦 Twitter / X https://x.com/VedantPate1601 🚀 Portfolio Website https://vedant-patel-developerportfol... If this video helped you, don’t forget to Like 👍 Subscribe 🔔 and share it with your coding friends. #leetcode #cplusplus #dsa #arrays #codinginterview #cpp #leetcode66 #algorithms #softwareengineer #programming