Kent Beck,1961年出生,中文名肯特贝克,美国著名软件工程师与作家,在软件工程方面有很大的贡献.他是Smalltalk软件的开发者,设计模式的先驱,测试驱动开发的支持者,也是极限编程的创始者之一. Kent Beck曾为Smalltalk写作了SUnit单元测试架构,之后将这个架构移植到Java,写作了JUnit.2001年,他参与了敏捷宣言(Agile Manifesto)的签署,是17名发起者之一. 2013年,就职于 Facebook 的极限编程创始人Kent Beck在发表的一
http://www.codeproject.com/Articles/42415/Builder-Design-Pattern In Elizabeth's day care center, the teacher helps the kids to build all kinds of toys to develop their creative skills. One of Elizabeth's favorite activities is to make animals with pl
链接:http://agc001.contest.atcoder.jp/tasks/agc001_c 题解(官方): We use the following well-known fact about trees.Let T be a tree, and let D be the diameter of the tree. • If D is even, there exists an vertex v of T such that for each vertex w inT, the dis
我都出了F了……结果并没有出E……atcoder让我差4分上橙是啥意思啊…… C - Together 题意:把每个数加1或减1或不变求最大众数. #include<cstdio> #include<algorithm> using namespace std; int read_p,read_ca; inline int read(){ read_p=;read_ca=getchar(); ') read_ca=getchar(); +read_ca-,read_ca=getch
D - Menagerie Time limit : 2sec / Memory limit : 256MB Score : 500 points Problem Statement Snuke, who loves animals, built a zoo. There are N animals in this zoo. They are conveniently numbered 1 through N, and arranged in a circle. The animal numbe
A - K-City Time limit : 2sec / Memory limit : 256MB Score : 100 points Problem Statement In K-city, there are n streets running east-west, and m streets running north-south. Each street running east-west and each street running north-south cross each
D - joisino's travel Time Limit: 2 sec / Memory Limit: 256 MB Score : 400400 points Problem Statement There are NN towns in the State of Atcoder, connected by MM bidirectional roads. The ii-th road connects Town AiAi and BiBi and has a length of CiCi
题目链接:https://abc042.contest.atcoder.jp/tasks/arc058_b 题目大意: 给定一个 H * W 的矩阵,其中左下角 A * B 区域是禁区,要求在不踏入禁区的前提下,从左上角走到右下角一共有多少种走法? 分析: 设 D 为往下,R为往左. 这里举个 H = 10,W = 7,A = 3,B = 4的例子: 首先不管怎么走,路线都是要跨越蓝色边界线的,这里我们只讨论从 A 跨越到 B 的情况,其余情况同理. 在这种情况下,总的路数就是所有从 S 走到