pointers

算法初步——哈希表A1048Find Coins

思路：twopointers#include#include#includeusingnamespacestd;constintMAX_LEN=100005;boolcmp(inta,intb){returna
JasonPeng1·2020-01-07 18:00

Given a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLinkNode *next; } Populate each next pointer to point to its next right node. If there is no next right node, the

TreeLinkNode*next;}Populateeachnextpointertopointtoitsnextrightnode.Ifthereisnonextrightnode,thenextpointershouldbesettoNULL.Ini
我是你的果果呀·2020-01-06 19:31

-[NSTaggedPointerString stringValue]: unrecognized selector sent to

Trappeduncaughtexception'NSInternalInconsistencyException',reason:'Invalidparameternotsatisfying:URLString'-[NSTaggedPointerStringstringValue
apple4·2020-01-06 16:39

LeetCode—117.Populating Next Right Pointers in Each Node II

Node*right;Node*next;}Populateeachnextpointertopointtoitsnextrightnode.Ifthereisnonextrightnode,thenextpointershouldbesettoNULL.Initially
萌小熙喵·2020-01-06 12:36

算法学习

算法部分二分搜索BinarySearch分治DivideConquer宽度优先搜索BreadthFirstSearch深度优先搜索DepthFirstSearch回溯法Backtracking双指针TwoPointers
浪子爱新觉罗·2020-01-05 00:48

Populating Next Right Pointers in Each Node II

Followupforproblem"PopulatingNextRightPointersinEachNode".Whatifthegiventreecouldbeanybinarytree?
juexin·2020-01-04 11:07

Xcode编译警告——JSONKit

YES:NO;提示警告bitmaskingforintrospectionofObjective-Cobjectpointersisstronglydiscouraged(在oc中把objec
DeadRabbit·2020-01-04 05:52

二刷633. Sum of Square Numbers

这道题一开始用O(N2)的方法，结果发现有一个Integer.MAX_VALUE的input,过不了；一般来说10^6-10^7之后的要做到O(N)image.png直接用twopointers两头走，
greatfulltime·2020-01-04 01:11

iOS基础深入补完计划--属性strong&©声明相关延伸

以下、将分析以下几点：引用计数变量地址copy的具体实现顺带分析两个字符串的类型NSTaggedPointerString/NSCFConstantString关于引用计数
kirito_song·2020-01-03 20:29

C++11 标准库源代码剖析：连载之四

SmartPointersSmartpointer，也就是所谓的“智能指针”，是指那些能够自我管理生命周期的指针对象。C++11之前，标准库只提供了一种智能指针，即std::auto_ptr。
JackZou·2020-01-02 20:21

LeetCode 19 [Remove Nth Node From End of List]

**解题思路链表问题-快慢指针解决(TwoPointers)块指针先走n步，然后快慢指针一起走，快指针走到尾，慢指针距离尾部差n个节点删除节点node.next=nod
Jason_Yuan·2020-01-02 02:17

排序算法

//@Paramnumbers:thearraypointerstoringthenumber
我什么都不知道呀·2020-01-01 20:45

深入理解Tagged Pointer

在调试程序或者反编译App时,经常可以看到"NSTaggedPointerString"这个东西例如:NSString*testStr1=@"a";NSString*testStr2=[NSStringstringWithString
Mr_Baymax·2020-01-01 09:31

LinkedList Summary

IdeaHowtothinkaboutlinked-listquestions:Theessenceoflinkedlisttypequestionistoplaywithpointers.twotypesofoperations
abrocod·2020-01-01 01:05

Populating Next Right Pointers in Each Node

TreeLinkNode*next;}Populateeachnextpointertopointtoitsnextrightnode.Ifthereisnonextrightnode,thenextpointershouldbesettoNULL.Ini
persistent100·2019-12-31 14:21

[LeetCode 116] Populating Next Right Pointers in Each Node (Medium)

Youaregivenaperfectbinarytreewhereallleavesareonthesamelevel,andeveryparenthastwochildren.Thebinarytreehasthefollowingdefinition:structNode{intval;Node*left;Node*right;Node*next;}Populateeachnextpoint
蓝眼睛灰·2019-12-30 21:31

Populating Next Right Pointers in Each Node

TreeLinkNode*next;}Populateeachnextpointertopointtoitsnextrightnode.Ifthereisnonextrightnode,thenextpointershouldbesettoNULL.I
时光杂货店·2019-12-30 14:20

Populating Next Right Pointers in Each Node II

Followupforproblem"PopulatingNextRightPointersinEachNode".Whatifthegiventreecouldbeanybinarytree?
greatfulltime·2019-12-30 06:40

NSTaggedPointerString

NSTaggedPointerString#####1）NSTaggedPointerString其父类是NSString直接当做字符串来用就好了~~~调试输出：po[NSClassFromString
雨轩_99·2019-12-30 06:29

HTC UnityPlugin 插件使用方法之一 ： 基础场景搭建（5分钟快速起步）

SteamVRViveInputUtility删除默认相机在SteamVR/Prefabs/下找到[CameraRig]拖到场景中（这个自不用说）在HTC.UnityPlugin/ViveInputUtility/Prefabs下找到VivePointers
Angeladaddy·2019-12-28 11:53

NSTaggedPointerString

__NSTaggedPointerString这个类型是标签指针字符串，这是苹果在64位环境下对NSString,NSNumber等对象做的一些优化。
struggle3g·2019-12-26 03:37

nil / Nil / NULL / NSNull的区别

anullpointertoaObjective-Cclass.表示对类进行付空值.3.NULL：指向其它类型的空指针（如：C类性，基本类型）Anullpointertoanythingelse,isforC-stylememorypointers
稻草田·2019-12-25 00:55

Populating Next Right Pointers in Each Node II

Followupforproblem"PopulatingNextRightPointersinEachNode".Whatifthegiventreecouldbeanybinarytree?
sherwin29·2019-12-22 03:03

NS3-回调

title:6、NS中的回调tags:NS-3,C++,Simulation,Callback,FunctionPointerslug:storywriter/upgrade_loggrammar_mindmap
liuyushuang·2019-12-21 19:00

42. Trapping Rain Water

Twopointersproblem1左右夹逼2height[l]height[r]更新maxright算出当前可以盛水的大小:maxright-height[r]*此时左边的柱子都比右边所有的高，height
larrymusk·2019-12-20 19:22

开机提示 fatal error: one or more table pointers are invalid.错误的解决办法

过年前买了个SSD硬盘想来升级下笔记本运行速度，经历一番硬件折腾后，开始Ghost装系统，系统装好后发现开机在dos状态下会出现fatalerror:oneormoretablepointersareinvalid
JackLiao·2019-12-18 09:38

6.7a Null pointers

原完整教程链接：6.7aNullpointers1.
Closears·2019-12-17 16:57

c博客06-2019-结构体&文件

结构体数组排序做法#defineN20structmy_struct{inti;charchars[100];floatf;}structs[N];structmy_struct*pointers[N]
郑伟成·2019-12-15 22:00

深入探讨函数指针

//arfupt.cpp--anarrayoffunctionpointers#include//variousnotations,samesignaturesconstdouble*f1(constdoublear
Luliang·2019-12-15 12:02

iOS | 错误提示 -[NSTaggedPointerString countByEnumeratingWithState:objects:count:]

***Terminatingappduetouncaughtexception'NSInvalidArgumentException',reason:'-[NSTaggedPointerStringcountByEnumeratingWithState
Rickie_Lambert·2019-12-14 09:00

Populating Next Right Pointers in Each Node

classSolution:#@paramroot,atreelinknode#@returnnothingdefconnect(self,root):ifnotroot:returnwhileroot.left:level=root.leftcur=Nonewhileroot:root.left.next=root.rightcur=root.rightroot=root.nextifcuran
云端漫步_b5aa·2019-12-13 16:43

LC Two Pointers

[Uber]Trappingrainwater[基本功]将arr左侧分为小于等于pv=arr[0]，右侧为大于pv！arr=[5,7,4,2,9,8]pv=arr[0]i=j=len(arr)-1#jtotheendaregreaterthanpvwhilei>0:ifarr[i]>pv:arr[i],arr[j]=arr[j],arr[i]i-=1j-=1else:i-=1arr[j],arr[
SharlotteZZZ·2019-12-13 14:18

Leetcode 关于twopointers的题解思路

最近在刷leetcode熟悉一些常用的算法知识，刷完了TwoPointers的大部分easy,medium的题目，在这里做一些总结，一来方便自己以后可以回看，又可以与大家分享自己的一点小小的心得。
handSomeJoe·2019-12-13 12:43

LeetCode—116.Populating Next Right Pointers in Each Node

Youaregivenaperfectbinarytreewhereallleavesareonthesamelevel,andeveryparenthastwochildren.Thebinarytreehasthefollowingdefinition:structNode{intval;Node*left;Node*right;Node*next;}Populateeachnextpoint
萌小熙喵·2019-12-12 18:02

Populating Next Right Pointers in Each Node II

DescriptionFollowupforproblem"PopulatingNextRightPointersinEachNode".Whatifthegiventreecouldbeanybinarytree
Nancyberry·2019-12-12 09:54

不安全 Swift: 使用指针与 C 进行交互（译）

最近在学习中遇到到Swift和C第三方库交互的问题，Google到了这篇文章顺便记录了下，文章原文出处《unsafeSwift:UsingPointersAndInteractingWithC》默认情况下
浅寒·2019-12-12 00:57

一些反调试代码

include#includetypedefBOOL(WINAPI*LPAPI_IDP)(VOID);LONGWINAPIMyUnhandledExceptionFilter(struct_EXCEPTION_POINTERS
御坂网络·2019-12-11 18:01

A1048 Find Coins （25 points）hash/二分/two pointers

A1048FindCoins哈希写法硬币面值有限且为整数，可直接作为下标，计数即可。#includeusingnamespacestd;intmain(){intcoins[1001]={0},nn,total,value;scanf("%d%d",&nn,&total);for(inti=0;i=2)){printf("%d%d\n",i,total-i);ok=true;break;}}}}i
电车上那个cll呀·2019-12-08 14:25

Leetcode--Hash table

3.LongestSubstringWithoutRepeatingCharacters可以用hash，即dic{}做，也可以用twopointers,window方法做。
Morphiaaa·2019-12-08 09:41

A1048 Find Coins （25 points）hash/二分/two pointers

A1048FindCoins哈希写法硬币面值有限且为整数，可直接作为下标，计数即可。#includeusingnamespacestd;intmain(){intcoins[1001]={0},nn,total,value;scanf("%d%d",&nn,&total);for(inti=0;i=2)){printf("%d%d\n",i,total-i);ok=true;break;}}}}i
电车上那个cll呀·2019-12-07 19:08

Swift中的指针大法

指针简介打开开发文档，可以从Swift-->SwiftStandardLibrary-->ManualMemoryManagement中找到指针类型：指针类型Swift中的指针类型分为两种：TypedPointers
01_Jack·2019-12-07 09:02

NSString存储管理--NSTaggedPointerString

NSString*strS=@"123456789";NSLog(@"%@:%p",strS.class,strS);strS=[NSStringstringWithFormat:@"1"];NSLog(@"%@:%p",strS.class,strS);strS=[NSStringstringWithUTF8String:"1234567"];strS=[NSStringstringWithUT
stonly916·2019-12-02 00:20

Populating Next Right Pointers in Each Node

TreeLinkNode*next;}Populateeachnextpointertopointtoitsnextrightnode.Ifthereisnonextrightnode,thenextpointershouldbesettoNULL.Ini
ShutLove·2019-12-01 21:47

内存映射mmap

通过操作内存地址的方法涉及的操作有:pointers,malloc/free之类，而操作流文件涉及的方法有read/write/seek等系统调用或者send/recv/etc等socket操作。
Nisen·2019-12-01 11:11

LeetCode 141. Linked List Cycle

Approach#1(TwoPointers)使用两个指针slow,fast。两个指针都从表头开
六尺帐篷·2019-11-30 18:01

[Leetcode] 3. Longest Substring Without Repeating Characters

RelatedTopics：[HashTable][TwoPointers][String]SimilarQuestions[LongestSubstringwithAtMostTwoDistinctCharacters
lijia069·2019-11-30 05:15

[Leetcode] 27. Remove Element 移除元素

RelatedTopics：[Array][TwoPointers]SimilarQuestions:[RemoveDuplicatesfromSortedArray][RemoveLinkedListElements
lijia069·2019-11-29 10:23

iOS内存分配：堆、栈、全局区、常量区、代码区

前言内容参考：iOS内存分配栈、堆、全局区、常量区、代码区NSString存储管理--NSTaggedPointerStringiOS开发中的内存分配（堆和栈）分析iOS内存分配.png1.代码区代码区是用来存放函数的二进制代码
四月_Hsu·2019-11-28 01:32

[Leetcode] 15. 3Sum 三数之和

RelatedTopics：[Array][TwoPointers]SimilarQuestions:[TwoSum][3SumClosest][4Sum][3SumSmaller]题目：GivenanarraySofnintegers
lijia069·2019-11-27 18:53

LeetCode 1269.Number of Ways to Stay in the Same Place After Some Steps

Youhaveapointeratindex0inanarrayofsizearrLen.Ateachstep,youcanmove1positiontotheleft,1positiontotherightinthearrayorstayinthesameplace(Thepointershouldnotbeplacedoutsidethearrayatanytime
一拳Coder·2019-11-26 15:00
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