LeetCode 779 | K-th Symbol in Grammar | Python Recursion Explained | AlgoYogi

Welcome to **AlgoYogi**! In this video, we solve **LeetCode problem 779: K-th Symbol in Grammar** using **Python recursion**. This problem beautifully tests your understanding of **binary recursion**, **pattern recognition**, and how to simplify complex logic with a clean recursive breakdown — perfect for technical interviews. 👉 **LeetCode Problem Link:** [K-th Symbol in Grammar - LeetCode 779](https://leetcode.com/problems/k-th-symbol-in-grammar/) --- ### 🚀 Timestamps 0:00 Introduction 0:20 Problem Explanation and Constraints 1:00 Recursive Pattern Intuition 12:00 Python Implementation 15:00 Time and Space Complexity --- ### 💡 Why Watch? - Understand how to **model binary transformations** with recursion - Learn to reduce problems based on **position and parent state** - Build a clear mental model of **how each row evolves from the previous** --- ### 📢 Next Steps - Try solving this recursively and iteratively on LeetCode - Explore similar problems like: - **Count and Say** - **Power of Two** - **Number of Steps to Reduce a Number to Zero** - Comment below if you want to cover more recursion or pattern-based problems! 👍 Like, 💬 Comment, and 🔔 Subscribe to **AlgoYogi** for more Python recursion tutorials and LeetCode mastery. #LeetCode #PythonSolutions #Recursion #KthSymbol #AlgoYogi #CodingInterview