19. Remove Nth Node From End of List

MediumLinked List

Given the head of a linked list, remove the nth node from the end of the list and return its head.

Examples

Input: [1,2,3,4,5] 2

Output: [1,2,3,5]

Explanation: The 2nd node from the end is 4; removing it yields 1->2->3->5.

Constraints

  • The number of nodes in the list is sz.
  • 1 <= sz <= 30
  • 0 <= Node.val <= 100
  • 1 <= n <= sz
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