05 2016 档案
摘要：Binary Tree Postorder Traversal My Submissions QuestionEditorial Solution Total Accepted: 97358 Total Submissions: 273744 Difficulty: Hard Given a bin
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摘要：Gray Code My Submissions QuestionEditorial Solution Total Accepted: 60277 Total Submissions: 165212 Difficulty: Medium The gray code is a b...
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摘要：Reorder List My Submissions QuestionEditorial Solution Total Accepted: 64392 Total Submissions: 281830 Difficulty: Medium Given a singly li...
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摘要：Binary Tree Zigzag Level Order Traversal My Submissions QuestionEditorial Solution Total Accepted: 60410 Total Submissions: 210160 Difficul...
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摘要：IP聚合 Accepts: 138 Submissions: 293 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Descriptio...
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摘要：这是自己用stl实现的一些字符串处理函数和常用的字符串处理技巧，经验正基本无误，可直接使用，若有问题，可相应列出 包括：split string to int int to string join#include #in...
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摘要：96. Unique Binary Search Trees My Submissions Question Editorial Solution Total Accepted: 82788 Total Submissions: 220611 Difficulty: ...
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摘要：问题：给定一个有序序列1~n，要你将其完全打乱，要求每个元素在任何一个位置出现的概率均为1/n。 解决方案：依次遍历数组，对第n个元素，以1/n的概率与前n个元素中的某个元素互换位置，最后生成的序列即满足要求，1/n的概率可通过rand() % n实现。见如下程序： void swap(int*...
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摘要：Binary Tree Level Order Traversal II My Submissions QuestionEditorial Solution Total Accepted: 79742 Total Submissions: 234887 Difficulty: ...
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摘要：Binary Tree Level Order Traversal My Submissions QuestionEditorial Solution Total Accepted: 102531 Total Submissions: 312211 Difficulty: Easy Given a
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摘要：Binary Tree Inorder Traversal My Submissions QuestionEditorial Solution Total Accepted: 123484 Total Submissions: 310732 Difficulty: Medium...
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摘要：Lowest Common Ancestor of a Binary Search Tree My Submissions QuestionEditorial Solution Total Accepted: 68335 Total Submissions: 181124 Di...
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摘要：Divide Two Integers My Submissions QuestionEditorial Solution Total Accepted: 66073 Total Submissions: 421509 Difficulty: Medium Divide two...
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摘要：用过linux的都知道，在linux下编译链接程序，如果不加-o参数，生成的binary代码的名字都是默认的a.out。一不小心，a.out还会覆盖上次其他code生成的binary代码。 a.out是"assembler output"的缩写格式，代表汇编程序输出。在较早版本的类unix系...
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摘要：深入理解操作系统中有个csapp.h的头文件 以下来介绍下如何使用它： 该头文件下载地址为http://download.csdn.net/detail/tzasd89812/4206284 在Ubuntu下如何使用： 1. 将此文件移到/usr/include中, sudo mv c...
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摘要：GCC参数详解 gcc是gnu compiler collection 的简称，他包含了多种语言的编译器，如C, C++, Objective-C, Objective-C++, Java, Fortran和Ada。但每种编译器的名字不一样，gcc and g++ 分别是 gnu 的 c ...
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摘要：linux上使用netstat察看mysql端口和连接 linux上使用netstat察看mysql端口和连接 近日发现写的一个java程序的数据库连接在大压力下工作不打正常,因此研究了一下dbcp,中间为了查看mysql服务器的数据库连接情况,需要使用netstat来查看端口和连接, 将使...
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摘要：1. sudo apt-get install apcher2 2.sudo apt-get install php5 3.sudo apt-get install mysql-server 4.sudo apt-get install phpmyadmin 5.配置https:...
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摘要：Odd Even Linked List My Submissions QuestionEditorial Solution Total Accepted: 29496 Total Submissions: 77710 Difficulty: Medium Given a si...
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摘要：Palindrome Linked List My Submissions QuestionEditorial Solution Total Accepted: 46990 Total Submissions: 166743 Difficulty: Easy Given a s...
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摘要：Remove Linked List Elements My Submissions QuestionEditorial Solution Total Accepted: 61924 Total Submissions: 215788 Difficulty: Easy Remo...
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摘要：Binary Tree Preorder Traversal My Submissions QuestionEditorial Solution Total Accepted: 119655 Total Submissions: 300079 Difficulty: Mediu...
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摘要：Flatten Binary Tree to Linked List My Submissions QuestionEditorial Solution Total Accepted: 81373 Total Submissions: 261933 Difficulty: Me...
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摘要：最近在腾讯，百度等的面试中被问到了上面某个或几个问题，我这人一碰到笔试面试什么鬼的就是紧张，然后就乱说话，其实很多东西我知道，只是表达不清，也许自己没有去整理，所以其实大脑中概念不清晰，今天梳理一下，用自己的语言来描述下这些概念： 1.野指针 比如说吧： int main()...
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摘要：数组指针和指针数组的区别 数组指针（也称行指针） 定义 int (*p)[n]; ()优先级高，首先说明p是一个指针，指向一个整型的一维数组，这个一维数组的长度是n，也可以说是p的步长。也就是说执行p+1时，p要跨过n个整型数据的长度。 如要将二维数组赋给一指针，应这样赋值： int...
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摘要：Linked List Cycle II My Submissions QuestionEditorial Solution Total Accepted: 74093 Total Submissions: 235430 Difficulty: Medium Given a l...
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摘要：Linked List Cycle My Submissions QuestionEditorial Solution Total Accepted: 102785 Total Submissions: 278248 Difficulty: Easy Given a linke...
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摘要：Intersection of Two Linked Lists My Submissions QuestionEditorial Solution Total Accepted: 72580 Total Submissions: 239762 Difficulty: Easy...
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摘要：一. 文件（文件夹）的权限问题 一个文件或者文件夹，使用它的人有三类：root、当前用户和其他用户，例如，我们可以通过 ls -l xxx.xxx 来查看文件 “xxx.xxx” 的权限，比如我查看 /var/log/ 中的 boot.log 文件的权限：ls -l /var/log/...
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摘要：Plus One My Submissions QuestionEditorial Solution Total Accepted: 98403 Total Submissions: 292594 Difficulty: Easy Given a non-negative nu...
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摘要：Reverse Linked List II My Submissions QuestionEditorial Solution Total Accepted: 70579 Total Submissions: 252986 Difficulty: Medium Reverse a linked l
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摘要：$88. Merge Sorted Array My Submissions QuestionEditorial Solution Total Accepted: 98885 Total Submissions: 329052 Difficulty: Easy Given tw...
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摘要：Generate Parentheses My Submissions QuestionEditorial Solution Total Accepted: 86957 Total Submissions: 234754 Difficulty: Medium Given n p...
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摘要：Valid Parentheses My Submissions QuestionEditorial Solution Total Accepted: 106346 Total Submissions: 361674 Difficulty: Easy Given a strin...
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摘要：Letter Combinations of a Phone Number My Submissions QuestionEditorial Solution Total Accepted: 78554 Total Submissions: 273286 Difficulty:...
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摘要：Count and Say My Submissions QuestionEditorial Solution Total Accepted: 79863 Total Submissions: 275285 Difficulty: Easy The count-and-say ...
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摘要：Reverse Nodes in k-Group My Submissions QuestionEditorial Solution Total Accepted: 58690 Total Submissions: 212820 Difficulty: Hard Given a...
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摘要：Remove Nth Node From End of List My Submissions QuestionEditorial Solution Total Accepted: 106592 Total Submissions: 361392 Difficulty: Eas...
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摘要：操作系统后门学习—Windows篇 0×00 准备工作 假设用户以管理员权限登录系统，在Windows 7系统上使用netcat 创建一个后门。 Netcat 功能比较单一, 缺少了许多我们渗透工作中需要的功能。为此我们将创建一个便携式的工具包来解决这个问题 : 1.下载额外的文件和附加...
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摘要：Climbing Stairs My Submissions QuestionEditorial Solution Total Accepted: 106498 Total Submissions: 290003 Difficulty: Easy You are climbin...
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摘要：什么是异或？ Wikipedia的解释： 在逻辑学中，逻辑算符异或（exclusive or）是对两个运算元的一种逻辑析取类型，符号为 XOR 或 EOR 或 ⊕（编程语言中常用^）。但与一般的逻辑或不同，异或算符的值为真仅当两个运算元中恰有一个的值为真，而另外一个的值为非真。转化为命题，就是...
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摘要：3Sum Closest My Submissions QuestionEditorial Solution Total Accepted: 76185 Total Submissions: 262100 Difficulty: Medium Given an array S ...
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摘要：Remove Duplicates from Sorted Array My Submissions QuestionEditorial Solution Total Accepted: 127836 Total Submissions: 381794 Difficulty: ...
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摘要：由AI大作业想到的近几年《人工智能导论》的大作业是编写一个博弈程序，这类程序的典型框架就是α-β剪枝算法，像著名的打败了国际象棋大师卡斯帕罗的深蓝，就是这么干的，一些中国象棋程序也是这样的框架。大多数同学在完成大作业时，也基本选择的是这个框架，也刚好与上课内容一致。 然后这个在国际...
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摘要：Majority Element My Submissions QuestionEditorial Solution Total Accepted: 110538 Total Submissions: 268290 Difficulty: Easy Given an array...
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