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原创 GDAL 64位编译及工程建立（vs2012）

vs2012下编译GDAL及建立工程GDAL简介GDAL官方网址http://www.gdal.org/index.html GDAL下载地址http://download.osgeo.org/gdal/ GDAL(Geospatial Data Abstraction Library)是一个在X/MIT许可协议下的开源栅格空间数据转换库。它利用抽象数据模型来表达所支持的各种文件格式。它还有一系

2015-09-22 15:57:56 765

原创 100 Same Tree

100 Same Tree链接：https://leetcode.com/problems/same-tree/ 问题描述： Given two binary trees, write a function to check if they are equal or not.Two binary trees are considered equal if they are structurall

2015-08-19 04:25:43 551

原创 129 Sum Root to Leaf Numbers

129 Sum Root to Leaf Numbers链接：https://leetcode.com/problems/sum-root-to-leaf-numbers/ 问题描述： Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.An

2015-08-19 04:07:41 489

原创 101 Symmetric Tree

101 Symmetric Tree链接：https://leetcode.com/problems/symmetric-tree/ 问题描述： Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center).For example, this binary tree

2015-08-19 03:51:30 513

原创 96 Unique Binary Search Trees

96 Unique Binary Search Trees链接：https://leetcode.com/problems/unique-binary-search-trees/ 问题描述： Given n, how many structurally unique BST’s (binary search trees) that store values 1…n?For example, G

2015-08-19 01:56:01 558

原创 98 Validate Binary Search Tree

98 Validate Binary Search Tree链接：https://leetcode.com/problems/validate-binary-search-tree/ 问题描述： Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as

2015-08-19 00:58:18 649

原创 44 Wildcard Matching

44 Wildcard Matching链接：https://leetcode.com/problems/wildcard-matching/ 问题描述： Implement wildcard pattern matching with support for ‘?’ and ‘*’.'?' Matches any single character.'*' Matches any sequen

2015-07-16 11:10:23 542

原创 6 ZigZag Conversion

链接：https://leetcode.com/problems/zigzag-conversion/ 问题描述： The string “PAYPALISHIRING” is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fi

2015-07-15 21:30:18 329

原创 11 Container With Most Water

链接：https://leetcode.com/problems/container-with-most-water/ 问题描述： Given n non-negative integers a1, a2, …, an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such tha

2015-07-15 02:48:40 341

原创 28 Implement strStr()

链接：https://leetcode.com/problems/implement-strstr/ 问题描述： Implement strStr().Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.Update (2014-11-02

2015-07-15 02:22:32 370

原创 88 Merge Sorted Array

88 Merge Sorted Array链接：https://leetcode.com/problems/merge-sorted-array/ 问题描述： Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array.Note: You may assume that

2015-07-14 23:55:14 339

原创 209 Minimum Size Subarray Sum

链接：https://leetcode.com/problems/minimum-size-subarray-sum/ 问题描述： Given an array of n positive integers and a positive integer s, find the minimal length of a subarray of which the sum ≥ s. If there

2015-07-14 23:06:51 344

原创 234 Palindrome Linked List

234 Palindrome Linked List链接：https://leetcode.com/problems/palindrome-linked-list/ 问题描述： Given a singly linked list, determine if it is a palindrome.Follow up: Could you do it in O(n) time and O(

2015-07-14 16:22:23 612

原创 80 Remove Duplicates from Sorted Array II

80 Remove Duplicates from Sorted Array II链接：https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii/ 问题描述： Follow up for “Remove Duplicates”: What if duplicates are allowed at most twic

2015-07-14 14:48:29 451

原创 26 Remove Duplicates from Sorted Array

链接：https://leetcode.com/problems/remove-duplicates-from-sorted-array/ 问题描述： Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length.Do n

2015-07-14 14:36:02 454

原创 27 Remove Element

27 Remove Element链接：https://leetcode.com/problems/remove-element/ 问题描述： Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be

2015-07-13 13:03:42 469

原创 75 Sort Colors

75 Sort Colors链接：https://leetcode.com/tag/two-pointers/ 问题描述： Given an array with n objects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in th

2015-07-13 10:57:24 368

原创 125 Valid Palindrome

125 Valid Palindrome链接：https://leetcode.com/problems/valid-palindrome/ 问题描述： Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For exampl

2015-07-13 09:58:31 418

原创 18 4Sum

18 4Sum链接：https://leetcode.com/problems/4sum/ 问题描述： Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array w

2015-07-13 00:32:25 293

原创 16 3Sum Closest

16 3Sum Closest链接：https://leetcode.com/problems/3sum-closest/ 问题描述： Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of

2015-07-13 00:29:21 311

原创 15 3Sum

15 3Sum链接：https://leetcode.com/problems/3sum/ 问题描述： Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum

2015-07-13 00:27:46 366

原创 42 Trapping Rain Water

42 Trapping Rain Water链接：https://leetcode.com/problems/trapping-rain-water/ 问题描述： Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water

2015-07-11 03:51:58 484

原创 20 Valid Parentheses

20 Valid Parentheses链接：https://leetcode.com/problems/valid-parentheses/ 问题描述： Given a string containing just the characters ‘(‘, ‘)’, ‘{‘, ‘}’, ‘[’ and ‘]’, determine if the input string is valid.The

2015-07-11 02:51:26 362

原创 49 Anagrams

49 Anagrams链接：https://leetcode.com/problems/anagrams/ 问题描述： Given an array of strings, return all groups of strings that are anagrams.Note: All inputs will be in lower-case.Hide Tags Hash Table Strin

2015-07-10 12:09:16 393

原创 94 Binary Tree Inorder Traversal

链接：https://leetcode.com/problems/binary-tree-inorder-traversal/ 问题描述： Given a binary tree, return the inorder traversal of its nodes’ values.For example: Given binary tree {1,#,2,3}, 1 \

2015-07-10 09:52:12 376

原创 219 Contains Duplicate II

219 Contains Duplicate II链接：https://leetcode.com/problems/contains-duplicate-ii/ 问题描述： Given an array of integers and an integer k, find out whether there there are two distinct indices i and j in

2015-07-09 22:31:08 405

原创 217 Contains Duplicate

217 Contains Duplicate链接：https://leetcode.com/problems/contains-duplicate/ 问题描述： Given an array of integers, find if the array contains any duplicates. Your function should return true if any valu

2015-07-09 22:09:29 352

原创 3 Longest Substring Without Repeating Characters

3 Longest Substring Without Repeating Characters链接：https://leetcode.com/problems/longest-substring-without-repeating-characters/ 问题描述： Given a string, find the length of the longest substring withou

2015-07-09 22:03:20 319

原创 76 Minimum Window Substring

76 Minimum Window Substring链接：https://leetcode.com/problems/minimum-window-substring/ 问题描述： Given a string S and a string T, find the minimum window in S which will contain all the characters in T in

2015-07-09 21:37:42 536

原创 136 Single Number

136 Single Number链接：https://leetcode.com/problems/single-number/ 问题描述： Given an array of integers, every element appears twice except for one. Find that single one.Note: Your algorithm should hav

2015-07-09 13:52:42 473

原创 30 Substring with Concatenation of All Words

30 Substring with Concatenation of All Words链接：https://leetcode.com/tag/hash-table/ 问题描述： You are given a string, s, and a list of words, words, that are all of the same length. Find all starting ind

2015-07-09 13:19:26 343

原创 37 Sudoku Solver

37 Sudoku Solver链接：https://leetcode.com/problems/sudoku-solver/ 问题描述： Write a program to solve a Sudoku puzzle by filling the empty cells.Empty cells are indicated by the character ‘.’.You may assume

2015-07-08 22:31:22 366

原创 36 Valid Sudoku

36 Valid Sudoku链接：https://leetcode.com/problems/valid-sudoku/ 问题描述： Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty ce

2015-07-08 16:22:43 537

原创 1 Two Sum

1 Two Sum链接：https://leetcode.com/problems/two-sum/ 问题描述： Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of t

2015-07-08 13:31:50 446

原创 231 Power of Two

231 Power of Two链接：https://leetcode.com/problems/power-of-two/ 问题描述： Given an integer, write a function to determine if it is a power of two.Credits: Special thanks to @jianchao.li.fighter for ad

2015-07-07 15:24:34 365

原创 65 Valid Number

65 Valid Number链接：https://leetcode.com/problems/valid-number/ 问题描述： Validate if a given string is numeric.Some examples: “0” => true ” 0.1 ” => true “abc” => false “1 a” => false “2e10” => true

2015-07-07 14:51:31 709

原创 8 String to Integer (atoi)

8 String to Integer (atoi)链接：https://leetcode.com/problems/string-to-integer-atoi/ 问题描述： Implement atoi to convert a string to an integer.Hint: Carefully consider all possible input cases. If you wa

2015-07-03 13:20:42 458

原创 67 Add Binary

67 Add Binary链接：https://leetcode.com/problems/add-binary/ 问题描述： Given two binary strings, return their sum (also a binary string).For example, a = “11” b = “1” Return “100”.Hide Tags Math String求两

2015-07-03 01:26:12 494

原创 224 Basic Calculator

224 Basic Calculator链接：https://leetcode.com/problems/basic-calculator/ 问题描述： Implement a basic calculator to evaluate a simple expression string.The expression string may contain open ( and closin

2015-07-01 23:43:26 430

原创 227 Basic Calculator II

227 Basic Calculator II链接：https://leetcode.com/problems/basic-calculator-ii/ 问题描述： Implement a basic calculator to evaluate a simple expression string.The expression string contains only non-negat

2015-07-01 23:40:41 537

网络cmd 聊天

网络cmd下的聊天系统，两份代码，一份做客户端，一份做服务器端，主要是socket变成，TCP/IP协议

2014-03-10

学生成绩管理系统

学生成绩管理系统是典型的信息管理系统,其开发主要包括后台数据库的建立和维护以及前端应用程序的开发两个方面。对于前者要求建立起数据一致性和完整性强、数据安全性好的库。而对于后者则要求应用程序功能完备、易使用、界面美观等特点。

2014-03-10

内存分配算法

内存分配算法实验目的：  本实验要求利用事先已经编写好的图形包软件模拟内存的分配。  实现动态分区的分配算法。最佳适配算法选择内存空闲块中最适合进程大小的块分配。邻近适配算法从上一次分配的地址开始查找符合要求的块，所查找到的第一个满足要求的空闲块就分配给进程。

2014-03-10

根据银行家算法的思想，编写程序，解决并发进程的死锁问题。  本实验要求设计并实现银行家算法。银行家算法是死锁避免的经典算法，其核心思想是：进程动态地申请资源，每次申请资源时系统都执行安全状态检查算法判断本次申请是否会造成系统处于不安全状态，如果不安全则阻塞进程；如果安全状态，则完成资源分配。安全状态检查算法的思想是找到一个安全序列，使所有进程都能执行完毕。如果找到，则处于安全状态，否则为不安全状态。

2014-03-10