🧠 Greedy Algorithm in Action | Integer to Roman | LeetCode 12

How does the number 1994 become MCMXCIV? 🤔 In this video, we solve LeetCode 12 — Integer to Roman using the Greedy Algorithm in C++ with a clean step-by-step explanation. At first, Roman numeral conversion may look confusing because of special cases like IV, IX, XL, XC, CD, and CM. But once you understand the greedy logic behind it, the entire problem becomes simple and interview-friendly. In this walkthrough, you'll learn how to think like an interviewer expects — breaking the number using the largest possible Roman value at every step. ✨ What You'll Learn In This Video 🔹 How Roman Numerals Actually Work 🔹 Special Subtractive Cases Explained 🔹 Greedy Algorithm Intuition 🔹 Step-by-Step Dry Run (1994 → MCMXCIV) 🔹 Clean & Optimized C++ Solution 🔹 Time Complexity & Space Complexity 🔹 Interview Explanation Tips 📌 Problem Link https://leetcode.com/problems/integer-to-roman 🎯 Why This Problem Matters This problem is one of the best beginner-friendly Greedy Algorithm questions. It improves: ✔ Pattern Recognition ✔ Greedy Thinking ✔ Simulation Skills ✔ Array Mapping Logic ✔ Interview Communication 🧠 Concepts Covered ✔ Greedy Algorithm ✔ Array Mapping ✔ Simulation ✔ String Building ✔ Mathematical Logic ✔ C++ STL Basics 🌍 Find Me Online 💻 GitHub https://github.com/vedantxy 🏆 LeetCode Profile https://leetcode.com/u/Vedant_2403/ 💼 LinkedIn https://www.linkedin.com/in/vedant-patel-3b6a4636a/ 🐦 Twitter / X https://x.com/VedantPate1601 🚀 Portfolio Website https://vedant-patel-developerportfolio.vercel.app/ If this video helped you, don’t forget to Like 👍 Subscribe 🔔 and share it with your coding friends. #leetcode #cplusplus #dsa #greedyalgorithm #codinginterview #programming #cpp #leetcode12 #algorithms #softwareengineer