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Solution: Remove Nth Node from End of List

Explore the two-pointer technique to remove the nth node from the end of a singly linked list in a single pass. Understand how to maintain a gap between pointers to identify and remove the target node efficiently. This lesson covers both the naive and optimized approaches, highlighting time and space complexity considerations.

Statement

Given the head of a singly linked list and an integer n, remove the nth node from the end of the list and return the head of the modified list.

Constraints:

  • The number of nodes in the list is kk.

  • 11 \leq kk 103\leq 10^3

  • 103−10^3 \leq ...