Remove N-th Node from End of List

Given a linked list, you need to remove the n-th node from the end of the list. The linked list nodes are represented as space-separated integers followed by -1. You will be given the value of n on a new line. Input format: - A single line containing integers representing the linked list followed by -1. - Second line contains a single integer n. Output format: - A single line of space-separated integers representing the linked list after the removal. If n is not valid (greater than the number of nodes), return the original linked list. Example: Input: 1 2 3 4 5 -1 2 Output: 1 2 3 5