LeetCode Weekly Contest 502 Solutions (Problems A to D) | Optimized C++ Editorial 🚀

Welcome to my complete video solution guide for LeetCode Weekly Contest 502! In this video, we break down all 4 problems step-by-step, shifting from the brute force approach to fully optimized C++ solutions. Whether you are preparing for technical interviews, mastering Data Structures & Algorithms (DSA), or aiming to push your contest rating to Knight or Guardian, this editorial will help you master the core patterns. 📌 Problems Covered & Timestamps: 00:00 Introduction & Contest Overview 00:20 Q1: Check Adjacent Digit Differences 02:20 Q2: Count K-th Roots in a Range 11:00 Q3: Largest Local Values in a Matrix II 24:13 Q4: Smallest Unique Subarray 💻 Links: - Contest Page: https://leetcode.com/contest/weekly-contest-502/ 💡 Core Concepts Discussed: - Dynamic Programming & Greedy Strategies - Rolling Hash - C++ STL Optimization Techniques 🔔 Enjoyed the solutions? Hit that LIKE button, SHARE this video with fellow coders, and SUBSCRIBE for more LeetCode editorials, interview preparation strategies, and competitive programming insights. Turn on notifications so you never miss a post-contest breakdown! 💬 Let's Discuss: How many problems did you manage to solve during the live contest? Which problem gave you the hardest time? Drop your thoughts, questions, or alternative approaches in the comments below! #leetcode #leetcodesolution #weeklycontest502 #cpp #datastructures #algorithms #codinginterview #competitiveprogramming #problemsolving #faangprep #sheoranflow