classSolution:defremoveNthFromEnd(self,head,n):# 初始化一个哑节点,它的下一个节点指向链表头节点# 这样做是为了方便处理边界情况,比如删除的是头节点dummy=ListNode(0)dummy.next=head# 初始化快慢指针,初始时都指向哑节点slow=dummyfast=dummy# 快指针先前进n+1步,走到第n+1个节点# 这里加1是为了让快慢...
Given a linked list, remove then-th node from the end of list and return its head. Example: Given linked list: 1->2->3->4->5, andn= 2. After removing the second node from the end, the linked list becomes 1->2->3->5. Note: Givennwill always be valid. Follow up: Could yo...
Leetcode 19——Remove Nth Node From End of List Given a linked list, remove thenth node from the end of list and return its head. For example, Given linked list: 1->2->3->4->5, andn= 2. After removing the second node from the end, the linked list becomes 1->2->3->5. No...
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 d...
Leetcode: Remove Nth Node From End of List 题目: 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->...
收费目的是刷掉打广告的,浑水摸鱼的等不是真心想来刷题的人。QQ群号:623125309 。如果无法加入参见我的置顶动态。题解:https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list/solution/c-solution-by-shiminlei/算法 数据结构 leetcode 十月打卡挑战W3 ...
19. 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. ...
19. Remove Nth Node From End of List 题意 给一个链表和一个数n, 删掉倒数第n个数. 比如给出1->2->3->4->5和2 返回1->2->3->5 尽量保证只遍历一次数组(one-pass) 解法: 常规思路是先完整遍历一遍数组,得到数组的长度L. 然后再从头遍历一次, 删除第L-n个数. ...
Can you solve this real interview question? Remove Nth Node From End of List - Given the head of a linked list, remove the nth node from the end of the list and return its head. Example 1: [https://assets.leetcode.com/uploads/2020/10/03/remove_ex1.j
每天一算:Remove Nth Node From End of List LeetCode上第19号问题:Remove Nth Node From End of List 题目 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 ...