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Solution: Return the Nth Node from End

Understand how to find the nth node from the end of a linked list using two approaches: double iteration and two-pointer technique. This lesson guides you through implementing both algorithms in C#, explaining their time and space complexity to help you solve common linked list problems in coding interviews.

Statement

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

Constraints:

  • The number of nodes in the list is kk.

  • 11 \leq kk ...