Remove Nth Node From End of List - LeetCode 19 | Two Pointer One Pass | Day 35

Описание: 🎯 Day 35 of My LeetCode Journey | Remove Nth Node From End of List (LeetCode 19)

In this video, I solve LeetCode Problem #19 - Remove Nth Node From End of List in JavaScript using the elegant Two Pointer technique for a ONE PASS solution! This medium problem demonstrates the power of the fast/slow pointer pattern.

🔗 Problem Link: https://leetcode.com/problems/remove-...

📌 PROBLEM DESCRIPTION:
Given the head of a linked list, remove the nth node from the end of the list and return its head.

Example 1:
Input: head = [1,2,3,4,5], n = 2
Output: [1,2,3,5]
Explanation: Remove the 2nd node from the end (node with value 4)

Example 2:
Input: head = [1], n = 1
Output: []
Explanation: Remove the only node

Example 3:
Input: head = [1,2], n = 1
Output: [1]
Explanation: Remove the last node


💡 KEY CONCEPTS COVERED:
✅ Two Pointer Technique (Fast & Slow)
✅ One Pass Solution
✅ Dummy Node Pattern
✅ N-Gap Window Pattern
✅ Linked List Node Removal

📊 COMPLEXITY:
• Time Complexity: O(n) where n is list length - ONE PASS! ⭐
• Space Complexity: O(1) - Constant space

🎓 DIFFICULTY: Medium
🏷️ TOPICS: Linked List, Two Pointers

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📚 MY LEETCODE JOURNEY PLAYLIST:
   • Leetcode  

🤝 CONNECT WITH ME:
• GitHub: https://github.com/ashwinikemshetty
• LinkedIn:   / ashwinikemshetty  

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