Challenge: Return the Nth Node from End

Try to solve the Return the Nth Node from End problem.

We'll cover the following

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.

  • 1≤1 \leq kk ≤103 \leq 10^3

  • −103≤-10^3\le Node.data ≤103\leq 10^3

  • 1≤1\len ≤\lekk

Examples

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