LeetCode 38 Count and Say | String Encoding | Step-by-Step Explanation & Detailed Time Analysis

? In this video, we solve LeetCode Problem 38. Count and Say We start with the base case "1" and build up the sequence using Run-Length Encoding (RLE). The approach is fully iterative, avoiding recursion and keeping the solution clean and efficient. ? Key Concepts: * Run-Length Encoding (RLE) * String construction using StringBuilder * Iterative transformation for each sequence level ? What you'll learn: * How to break down the Count and Say problem step-by-step * Why this problem is a great example of string manipulation * How the time complexity grows and why it's not just O(n²) ? From "1" ➝ "11" ➝ "21" ➝ "1211" ➝ and beyond – we explain every step! ? Whether you're a beginner or brushing up for interviews, this one's a must-watch! ? Resources & Links: Code Harmony Website: https://codeharmony.dev/ WhatsApp Channel: https://whatsapp.com/channel/0029Va8WpdlI1rchTrZU2O0l Telegram Group: https://t.me/+4z-BZ2HuwHBmZDdl Discord Server: https://discord.gg/p3vtnzFbn5 Link to My Solution: https://leetcode.com/problems/count-and-say/solutions/6662200/easy-to-understand-detailed-time-analysi-jtkl Connect with Me on LinkedIn: https://www.linkedin.com/in/sahil1012/ ? Video Overview: Dive deep into the solution for the LeetCode challenge titled '38. Count and Say'. Whether you're kickstarting your coding journey or aiming for roles at tech giants like Facebook, Amazon, Apple, Netflix, or Google, this tutorial is tailored for you. We'll break down the problem step-by-step, ensuring clarity and understanding. ? Key Highlights: A comprehensive walkthrough of the problem statement. An intuitive explanation for both novice and intermediate coders. Practical insights for acing interviews with top tech companies. Code walkthrough to grasp the algorithmic approach. ? Chapters: 00:00 Understanding Problem Statement 16:43 Time & Space Complexity Analysis 22:26 Iterative method 24:50 Coding Join me on this coding adventure! Let's learn, grow, and conquer challenges together. ? #dsa #codingtutorials #ProblemSolving #TechSkills #datastructures #algorithm #dsa #leetcode #leetcodesolution #googleinterview #google #amazon #adobe #developerjobs #codeharmonylab #codeharmony #intuitive #leetcodemedium #neetcode #java #simulation #string #scaler #array #search #leetcodedaily #matrix #microsoftinterviewquestion #googleinterviewquestion #adobeinterviewquestion #leetcodedpsolution #amazoninterviewquestion #appleinterviewquestion #adobeinterviewquestion #Googleinterviewquestion #metainterviewquestion #LeetCode #array #leetcodeeasy #string #encoding