Reorder List | Merge/Sort Pattern | Brute force to optimsied | Java Python C++

Reorder List is one of the most frequently asked Linked List interview problems in product-based companies. In this video, we'll solve LeetCode 143 - Reorder List using the Merge/Sort Pattern, where we combine multiple Linked List concepts into one optimal solution. We'll first find the middle of the list using the Fast & Slow Pointer technique, reverse the second half of the Linked List, and finally merge both halves alternately. This pattern is extremely important because it is reused in many Linked List interview questions. In this video, you'll learn: Rising Brain (DSA Sheet): https://www.risingbrain.org/sheet Connect with me here: LinkedIn –   / anjalikumari22   Instagram –   / rbanjali.codes   Twitter (X) – https://x.com/anjali1kumari?s=21 Understanding the Merge/Sort Pattern Finding the middle of a Linked List Reversing a Linked List Merging two linked lists alternately Step-by-step dry run Java implementation Time & Space Complexity Interview tips and common mistakes Pattern Covered Merge/Sort Pattern Fast & Slow Pointer Reverse Linked List Merge Two Lists Time Complexity O(N) Space Complexity O(1) If you're preparing for FAANG, Walmart, Microsoft, Amazon, Adobe, Atlassian, Uber, or any Product-Based Company, this problem is a must-do for Linked List interview preparation. Rising Brain (DSA Sheet): https://www.risingbrain.org/sheet Connect with me here: LinkedIn –   / anjalikumari22   Instagram –   / rbanjali.codes   Twitter (X) – https://x.com/anjali1kumari?s=21