✅Day 63 | LeetCode 19. Remove Nth Node From End of List

🌟 Welcome to the Incredible Journey of Node Removal! 🚀

Embark on an exhilarating adventure through the realm of linked lists as we uncover a mesmerizing algorithm designed to remove the nth node from the end of a linked list. Join us in this thrilling quest as we delve into the intricacies of node manipulation, employing clever strategies to achieve optimal solutions.

🎯 Problem Overview:

In this captivating escapade, we encounter a linked list and a target integer 'n'. Our mission is to remove the nth node from the end of the linked list with precision and efficiency. Armed with ingenious techniques, we navigate through the list, identifying the target node and gracefully removing it to preserve the integrity of the list structure.

🚀 Algorithm Breakdown:

Our journey commences with the creation of a dummy node, serving as the sentinel for the linked list.
We initialize two pointers, 'first' and 'second', both pointing to the dummy node.
Utilizing a two-pointer technique, we advance the 'first' pointer by 'n+1' steps, positioning it ahead of the target node.
Next, we traverse both pointers simultaneously until the 'first' pointer reaches the end of the list.
Upon reaching the target node, we gracefully remove it from the list, preserving the list's integrity.
Finally, we return the modified linked list, free from the unwanted node.
📊 Complexity Analysis:

Time Complexity: O(N), where N is the number of nodes in the linked list. The algorithm traverses the list twice, contributing to a linear time complexity.
Space Complexity: O(1), as the algorithm utilizes a constant amount of extra space regardless of the input size. The space complexity remains unaffected by the size of the linked list.
Prepare to immerse yourself in the enchanting world of linked list manipulation as we embark on a journey filled with excitement, challenges, and the triumph of code mastery! 🔗✨

Tags: #linkedlistmanipulation #nodemanipulation #codingadventure #programminglogic #efficiencyoptimization #algorithmexplained #codejourney