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Learn Data Structures and Algorithms in C++

Problem: Remove Nth Node From End of List

Understand how to remove the nth node from the end of a singly linked list by applying the two-pointer technique. Explore using a dummy node to simplify edge cases and traverse the list in one pass with constant extra space. This lesson focuses on achieving an efficient O(n) time complexity solution for modifying linked lists.

We'll cover the following...

Statement

Given the head of a singly linked list, remove the nthn^{th} node from the end of the list and return the head of the modified list.

Constraints:

  • The number of nodes in the list is sz

  • 1≤1 \leq sz ≤30\le ...