19. Remove Nth Node From End of List. Java

[rickben]

Given the head of a linked list, remove the nth node from the end of the list and return its head. Passed in Leetecode: Runtime: 0 ms, faster than 100.00% of Java online submissions for Remove Nth Node From End of List. Memory Usage: 36.9 MB, less than 7.76% of Java online submissions for Remove Nth Node From End of List.