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Problem: Remove Nth Node From End of List

Understand how to remove the nth node from the end of a singly linked list using the two-pointer method. Learn to create and use a dummy node and advance pointers to solve this problem efficiently with a single pass, ensuring edge cases are handled gracefully.

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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 ...