Write a function to delete a node (except the tail) in a singly linked list, given only access to that node.

Supposed the linked list is 1 -> 2 -> 3 -> 4 and you are given the third node with value 3, the linked list should become 1 -> 2 -> 4 after calling your function.

分析:题意即让我们删除链表的一个节点,但是却与我们熟知的一般情况不同,它没有给我们链表的起点,只给了我们一个要删的节点。

不太一样在于:我们之前要删除一个节点的方法是要有其前一个节点的位置,然后将其前一个节点的next连向要删节点的下一个,然后delete掉要删的节点即可。这道题的处理方法是先把当前节点的值用下一个节点的值覆盖了,然后我们删除下一个节点即可,代码如下:

/**
* Definition for singly-linked list.
* struct ListNode {
* int val;
* ListNode *next;
* ListNode(int x) : val(x), next(NULL) {}
* };
*/
class Solution {
public:
void deleteNode(ListNode* node) {
ListNode* temp=node->next;
node->val=node->next->val;
node->next=node->next->next;(也可写为node->next=temp->next;)
delete temp; }
};

  或:

 class Solution {
public:
void deleteNode(ListNode* node) {
ListNode* nextNode = node->next;
*node = *nextNode;
delete nextNode;
}
};

  

leetcode:Delete Node in a Linked List的更多相关文章

  1. [LeetCode] 237. Delete Node in a Linked List 解题思路

    Write a function to delete a node (except the tail) in a singly linked list, given only access to th ...

  2. LeetCode OJ:Delete Node in a Linked List(链表节点删除)

    Write a function to delete a node (except the tail) in a singly linked list, given only access to th ...

  3. LeetCode 237. Delete Node in a Linked List (在链表中删除一个点)

    Write a function to delete a node (except the tail) in a singly linked list, given only access to th ...

  4. [LeetCode] 237. Delete Node in a Linked List 删除链表的节点

    Write a function to delete a node (except the tail) in a singly linked list, given only access to th ...

  5. (easy)LeetCode 237.Delete Node in a Linked List

    Write a function to delete a node (except the tail) in a singly linked list, given only access to th ...

  6. Java [Leetcode 273]Delete Node in a Linked List

    题目描述: Write a function to delete a node (except the tail) in a singly linked list, given only access ...

  7. leetcode 237 Delete Node in a Linked List python

    题目: Write a function to delete a node (except the tail) in a singly linked list, given only access t ...

  8. 17.leetcode 237. Delete Node in a Linked List

    Write a function to delete a node (except the tail) in a singly linked list, given only access to th ...

  9. [Leetcode]237. Delete Node in a Linked List -David_Lin

    Write a function to delete a node (except the tail) in a singly linked list, given only access to th ...

随机推荐

  1. javaScript中eval()方法转换json对象

    <script language="javascript"> var user = '{name:"张三",age:23,'+ 'address:{ ...

  2. RT/Metro商店应用如何如何获取图片的宽高

    RT/Metro商店应用如何如何获取图片的宽高 var file = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms ...

  3. JQuery表单验证插件EasyValidator,超级简单易用!

    本插件的宗旨是:用户无需写一行JS验证代码,只需在要验证的表单中加入相应的验证属性即可,让验证功能易维护,可扩展,更容易上手. DEMO中已经包含了常用的正则表达式,可以直接复用,为了考虑扩展性,所以 ...

  4. BZOJ2435: [Noi2011]道路修建

    这种水题真是……没一次AC都不好意思见人啊 P.S. LINUX无限栈真是爽炸了… 我爱递归 /**************************************************** ...

  5. 深入浅出ES6(十四):let和const

    作者 Jason Orendorff  github主页  https://github.com/jorendorff 回溯到1995年,当Brendan Eich在设计第一版JavaScript时, ...

  6. CS程序,服务器端弹出MessageBox.Show()之类的UI操作???禁止

    服务器端绝对不能用MessageBox.Show之类的UI操作,大家要掌握异常(Exception)的工作机制. 可能你开发调试时貌似可以,因为是以单机版运行.在服务层或者数据访问层MessageBo ...

  7. The first day of HTML

    这是韩顺平老师的<轻松搞定网页设计(html.css.js)>,讲的还凑合,仅作入门.决定还是做好笔记,记录学习的过程,这是HTML的第一天. HTML(HyperText Mark-up ...

  8. selenium测试框架篇

    做自动化框架,不可避免的就是对象库. 有一个好的对象库,可以让整个测试体系: 更容易维护 大大增加代码重用 增加测试系统的稳定性 这里先了解一下我所说的对象库: 所谓的页面对象,是指每一个真是的页面是 ...

  9. SSH 端口转发

    第一部分 概述 当你在咖啡馆享受免费 WiFi 的时候,有没有想到可能有人正在窃取你的密码及隐私信息?当你发现实验室的防火墙阻止了你的网络应用端口,是不是有苦难言?来看看 SSH 的端口转发功能能给我 ...

  10. DFS/BFS+思维 HDOJ 5325 Crazy Bobo

    题目传送门 /* 题意:给一个树,节点上有权值,问最多能找出多少个点满足在树上是连通的并且按照权值排序后相邻的点 在树上的路径权值都小于这两个点 DFS/BFS+思维:按照权值的大小,从小的到大的连有 ...