Merge Two Sorted Linked Lists | Coding Interview Prep | HackerRank & LeetCode Solution скачать в хорошем качестве

Merge Two Sorted Linked Lists | Coding Interview Prep | HackerRank & LeetCode Solution

In this tutorial, Sikander provides a step-by-step guide to solving one of the most frequently asked technical interview questions: Merging two sorted linked lists. This problem is a staple on platforms like HackerRank and LeetCode. What you will learn in this session: • The Core Problem: How to take two pointers to the heads of sorted lists and combine them into a single, sorted linked list. • Efficient Memory Usage: We demonstrate how to solve this without creating new nodes, purely by modifying the existing links between nodes. • Handling Edge Cases: Learn how to manage boundary conditions, such as when one or both lists are empty (null pointers). • Step-by-Step Logic: ◦ Comparing initial head data to set the new head3 pointer. ◦ Using a current pointer to traverse and link the remaining nodes. ◦ Dealing with "leftover" nodes when one list finishes before the other. • Visual Debugging: Watch a detailed Microsoft Visual Studio walkthrough using the Watch Window to see exactly how addresses and pointers change at every step. • Cross-Platform Submission: See how the same logic is applied and adapted for both HackerRank and LeetCode, including minor adjustments for data member names like data vs val. Whether you are a student or a job seeker, mastering this logic is essential for understanding dynamic data structures. Problem Statement: Hackerrank : https://www.hackerrank.com/challenges... LeetCode : https://leetcode.com/problems/merge-t... Link to Code : https://onlinegdb.com/u3ss-b0xn