Data Structures and Algorithms with Python | Free DSA with Python Course - DSA in Python - Unique Paths | 4 DP Approaches | LeetCode 62 | Part 196 [Hindi]

📘 Welcome to Part 196 of Code & Debug’s DSA in Python Course! In this video, we break down the fundamental dynamic programming problem: Unique Paths from LeetCode. We'll explore how a robot can move from the top-left to the bottom-right in an m x n grid, using only right and down moves. This video covers all 4 major approaches, progressing from brute-force recursion to the highly optimal, space-efficient DP solution, exactly as explained in our comprehensive article. This is an excellent problem to get hands-on with basic-to-advanced DP strategies (recursion ➝ memoization ➝ tabulation ➝ space optimization). Mastering these approaches will prepare you for a wide range of grid-based DP interview questions. 👨🏫 What’s covered in this video: 1. Problem statement, input and output overview 2. Approach 1: Brute Force Recursion 3. Approach 2: Memoization (Top-Down DP) 4. Approach 3: Tabulation (Bottom-Up DP) 5. Approach 4: Space-Optimized Tabulation 6. Full Python code walkthrough for every solution 7. Step-by-step dry runs & visual explanation for transitions 8. Time and space complexity analysis 9. Interview guidance for modeling grid-based moves in DP By the end, you’ll be comfortable with the full set of DP patterns needed for classic grid pathfinding problems! 🔗 LeetCode Problem – Unique Paths: https://leetcode.com/problems/unique-paths/description/ 🔗 Detailed Article with All Solutions & Explanations: https://codeanddebug.in/blog/unique-paths/ 📄 FULL Playlist Sheet (Every Video Listed): https://docs.google.com/spreadsheets/d/1AWE15Fy3wD2iqu2vjK_R7cCiuvSsjYQclcdZmHpF66o/edit?usp=sharing 🎓 Enroll Free: Master Python DSA Course https://codeanddebug.in/course/master-dsa-with-leetcode 🚀 Advance Python DSA for FAANG (Zero to Hero Course): https://codeanddebug.in/course/zero-to-hero-python-dsa Stay focused and keep coding with Code & Debug. Like | Share | Subscribe | Hit the 🔔 #UniquePaths #DynamicProgramming #GridDP #LeetCode62 #PythonDSA #Recursion #Memoization #Tabulation #SpaceOptimization #CodeAndDebug #Part196 #GridProblems #DPPatterns #InterviewPrep