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 程式師世界 >> 編程語言 >> C語言 >> C++ >> C++入門知識 >> Remove Nth Node From End of List

Remove Nth Node From End of List

編輯:C++入門知識

Remove Nth Node From End of List


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

For example,

   Given linked list: 1->2->3->4->5, and n = 2.

   After removing the second node from the end, the linked list becomes 1->2->3->5.

Note:
Given n will always be valid.
Try to do this in one pass.

/**
 * Definition for singly-linked list.
 * public class ListNode {
 *     int val;
 *     ListNode next;
 *     ListNode(int x) {
 *         val = x;
 *         next = null;
 *     }
 * }
 */
public class Solution {
    public ListNode removeNthFromEnd(ListNode head, int n) {
    	ListNode left = head;
    	ListNode right = head;
    	for(int i = 0;i

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