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LeetCode Unique Binary Search Trees
Givenn, how many structurally uniqueBST's(binary search trees) that store values 1...n?For example,Givenn= 3, there are a total of 5 unique BST's. 1.....
分类:其他好文   时间:2014-12-29 22:57:50    阅读次数:205
UVa 10213 (欧拉公式+Java大数) How Many Pieces of Land ?
题意:一块圆形土地,在圆周上选n个点,然后两两连线,问把这块土地分成多少块?分析:首先紫书上的公式是错的,不过根据书上提供的思路很容易稍加修改得到正确答案!然后推公式吧,这里用到平面图的欧拉公式,V - E + F = 2,其中V表示顶点个数,E表示边的个数,F表示面的块数。减去最外面的无限大的面,...
分类:编程语言   时间:2014-12-29 21:23:32    阅读次数:395
poj1200 哈希
http://poj.org/problem?id=1200 Description Many people like to solve hard puzzles some of which may lead them to madness. One such puzzle could be finding a hidden prime number in a given text. ...
分类:其他好文   时间:2014-12-29 10:28:57    阅读次数:234
LeetCode:Unique Paths II
题目描述: Follow up for "Unique Paths": Now consider if some obstacles are added to the grids. How many unique paths would there be? An obstacle and empty space is marked as 1 and 0 respectivel...
分类:其他好文   时间:2014-12-29 10:28:11    阅读次数:183
MoSCoW Method
When managing a project, it is important to develop a clear understanding of the customers' requirements and their priority. Many projects start with ...
分类:其他好文   时间:2014-12-29 10:22:53    阅读次数:113
NHibernate 学习笔记(三)——模型(model)
1、模型的组成元素模型的组成是由实体类型(Entity)和属性值(value object)组成的;比如:人是一个模型,人名是一个实体,人的名字又有 “姓” 和“名”,“姓”和"名"就是属性值;2、实体的关系实体的关系分为三种,一对一(one to one ) 、一对多(many to many)、...
分类:Web程序   时间:2014-12-29 10:18:42    阅读次数:145
EF里查看/修改实体的当前值、原始值和数据库值
EF里查看/修改实体的当前值、原始值和数据库值以及重写SaveChanges方法记录实体状态 - 心态要好时间2013-09-10 09:09:00 博客园_汪杰的cnBlogs 原文 http://www.cnblogs.com/oppoic/p/ef_dbpropertyvalues_too.....
分类:数据库   时间:2014-12-29 10:15:37    阅读次数:3400
poj 2413 How many Fibs?
How many Fibs? Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 10748   Accepted: 3982 Description Recall the definition of the Fibonacci numbers:  f1 := 1...
分类:其他好文   时间:2014-12-29 09:01:26    阅读次数:155
poj 3274 哈希
http://poj.org/problem?id=3274 Description Farmer John's N cows (1 ≤ N ≤ 100,000) share many similarities. In fact, FJ has been able to narrow down the list of features shared by his cows to a l...
分类:其他好文   时间:2014-12-28 22:18:33    阅读次数:154
架构练习:c语言实现贪吃蛇(三):封装蛇的移动方法
目前进展: 封装蛇的移动方法: typedef struct snakeinfo { int numParts;/* how many parts,蛇身体分多少个段 */ int lenParts[GAME_WIDTH];/* 蛇身体每段的长度 */ int xPartsHead[GAME_WIDTH];/* 蛇身体第i段的x坐标,初始值为1 */ int yPartsHead[GAM...
分类:移动开发   时间:2014-12-28 20:56:56    阅读次数:152
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