Recursion & Backtracking Explained | Subsequence, Subset, Permutation Patterns | DSA Revision #3

Welcome to Episode 3 of the DSA Revision Series In this video, we’ll dive deep into Recursion and Backtracking, two of the most fundamental and powerful concepts in DSA that form the base for Dynamic Programming, Graphs, and Combinatorics. You’ll learn: Core concept of Recursion — how and when to use it Backtracking — undoing choices smartly All major patterns: 🔹 Subsequence Pattern 🔹 Subset Generation 🔹 Permutations & Arrangements Dry runs, visualization, and intuition building 2–3 detailed problem walkthroughs Homework problems for solid practice By the end of this video, recursion and backtracking will feel natural to you Connect with me: https://www.linkedin.com/in/sanyam-jain-229052250/ OOPS Series playlist: https://www.youtube.com/playlist?list=PLeh6VbPaYLX8LVS-IPUtt6AjensvzONyV DSA Revision Series: https://www.youtube.com/playlist?list=PLeh6VbPaYLX_ghFGUC_HuW9whLuPOW-oT OA series for placement: https://www.youtube.com/playlist?list=PLeh6VbPaYLX-zusD0HrwH9a3Nm9YdAOVA Telegram Channel: https://t.me/sanyamiitguwahati Practise Problems: https://leetcode.com/problems/combinations/ https://leetcode.com/problems/palindrome-partitioning/ https://leetcode.com/problems/subsets/ https://leetcode.com/problems/combination-sum/description/ https://leetcode.com/problems/combination-sum-ii/ https://leetcode.com/problems/subsets-ii/ Join this channel to get access to perks: https://www.youtube.com/channel/UCuMF6SFnqxmwOAA_zygHMrA/join #Recursion #Backtracking #Subset #Subsequence #Permutation #DSARevisionSeries #CompetitiveProgramming #Coding #Leetcode #Codeforces #Cplusplus #InterviewPreparation #ProblemSolving #sanyamjain #leetcode #leetcodecoding