DSA SERIES | Linked List | LECTURE 7 | LEETCODE PROBLEM 141

🚀 DSA SERIES | Lecture 7 | LeetCode 141: Linked List CycleWelcome to the seventh lecture of our Data Structures & Algorithms (DSA) Series! Building on the fundamentals of Linked Lists from our previous sessions, today we tackle one of the most famous algorithmic patterns: Cycle Detection.In this video, we deep dive into LeetCode 141 - Linked List Cycle 💡 In this lecture, you’ll learn: ✅ The Core Problem: How to detect if a linked list has a loop that could cause an infinite traversal. ✅ Floyd’s Cycle-Finding Algorithm: A complete breakdown of the "Slow and Fast Pointer" technique (The Tortoise and the Hare). ✅ Cycle Detection Principle: Why the fast pointer is guaranteed to eventually meet the slow pointer if a loop exists. ✅ Space & Time Optimization: How to achieve an $O(N)$ time complexity with $O(1)$ constant space—the gold standard for interview solutions. ✅ Edge Case Handling: Dealing with empty lists or lists with only one node correctly. 🎯 This lecture is a cornerstone for technical interviews. Cycle detection logic is not just for Linked Lists—it’s a pattern that appears in many advanced graph algorithms and competitive programming problems. 🔥 Master the two-pointer approach to solve complex traversal problems effortlessly! 📌 Missed Lecture 6? Catch up on Stacks, Queues, and Recursion here:https://youtu.be/EMEuhnf7WJA?si=tyPDclA9WiQeWTko. 📌 Coming Up Next: We’ll learn how to find the starting point of the cycle in Lecture 8!Don't forget to Like, Comment with your "Aha!" moment, and Subscribe to stay updated with the series! 🔔 #dsa #dsaseries #DataStructures #Algorithms #LeetCode141 #LinkedList #CycleDetection #TwoPointers #FloydAlgorithm #CodingInterview #Programming #Cpp #Java #Python #TechInterview #FullOnCoding #PlacementPreparation