Minimum Element After Replacement With Digit Sum | LeetCode 3300

In this video, we solve LeetCode 3300 — Minimum Element After Replacement With Digit Sum using a simple and efficient C++ approach with a clean step-by-step explanation. This problem may look tricky at first because we need to replace every number with the sum of its digits and then find the minimum value. But once you understand the digit extraction process, the solution becomes very simple and beginner-friendly. In this walkthrough, you'll learn how to calculate digit sums efficiently, track the minimum element, and write a clean interview-ready solution. ✨ What You'll Learn In This Video 🔹 Digit Sum Calculation 🔹 Extracting Digits Using Modulo & Division 🔹 Step-by-Step Dry Run 🔹 Minimum Element Logic 🔹 Clean C++ Implementation 🔹 Time Complexity & Space Complexity 🔹 Interview Explanation Tips 📌 Problem Link [https://leetcode.com/problems/minimum...](https://leetcode.com/problems/minimum...) 🎯 Why This Problem Matters This is a great beginner-friendly problem for improving mathematical logic and array traversal skills. It helps improve: ✔ Problem Solving ✔ Digit Manipulation ✔ Mathematical Thinking ✔ Simulation Skills ✔ Interview Communication 🧠 Concepts Covered ✔ Arrays ✔ Mathematics ✔ Digit Sum ✔ Simulation ✔ Minimum Tracking ✔ C++ 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 #cpp #dsa #programming #codinginterview #leetcode3300 #algorithms #digitsum #softwareengineer