Given a linked list, remove the n-th node from the end of list and return its head. 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 w…
22.删除链表的倒数第N个节点 给定一个链表,删除链表的倒数第 n 个节点,并且返回链表的头结点. 示例: 给定一个链表: 1->2->3->4->5, 和 n = 2. 当删除了倒数第二个节点后,链表变为 1->2->3->5. 说明: 给定的 n 保证是有效的. 进阶: 你能尝试使用一趟扫描实现吗? 答案解析: /** * Definition for singly-linked list. * public class ListNode { * int va…
给 定一个链表,删除链表的倒数第 n 个节点,并且返回链表的头结点. 示例: 给定一个链表: 1->2->3->4->5, 和 n = 2. 当删除了倒数第二个节点后,链表变为 1->2->3->5. 说明: 给定的 n 保证是有效的. /** * Definition for singly-linked list. * public class ListNode { * public int val; * public ListNode next; * publ…
题目:删除链表的倒数第N个节点 难度:Medium 题目内容: Given a linked list, remove the n-th node from the end of list and return its head. 翻译:给定一个链表,删除倒数第n个节点并返回其头部. Example: Given linked list: 1->2->3->4->5, and n = 2. After removing the second node from the end, t…
Level: Medium 题目描述: Given a linked list, remove the n-th node from the end of list and return its head. 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-…