if (balance >= amount) { ... } else { ... }…

第七题:顺序图 重要概念: 1. 顺序图的主要介绍,在之前对第5题“系统顺序图”的解析讲解里已经很详细了,在这里只是对部分不全面的内容进行补充. 第五题:系统顺序图&后置条件 http://www.cnblogs.com/xiaolongbao-lzh/p/4609306.html 2. 实例的创建 UML中要求在创建实例是使用虚线表示.实心箭头表示常规的同步信息,开放箭头表示异步调用. 3. 对象生命线和对象的销毁 在某些情况下,需显式表示对象的销毁.例如当使用没有自动垃圾回收机制的C++时,…

传送门 Description Chloe, the same as Vladik, is a competitive programmer. She didn't have any problems to get to the olympiad like Vladik, but she was confused by the task proposed on the olympiad. Let's consider the following algorithm of generating a…

原题链接 Problem Description You may heard of the Joseph Problem, the story comes from a Jewish historian living in 1st century. He and his 40 comrade soldiers were trapped in a cave, the exit of which was blocked by Romans. They chose suicide over captu…

Description You are given a sequence of integers, A = a1, a2, ... an. A consecutive subsequence of A (say ai, ai+1 ... aj) is called a "repeated sequence" if it appears more than once in A (there exists some positive k that ai+k = ai, ai+k+1 = a…

C. Sequence Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100114 Description Integer sequences are very interesting mathematical objects. Let us examine a sequence generated with the use of two operations: doubling and “digit…

http://www.ibm.com/developerworks/cn/rational/rationaledge/content/feb05/bell/ http://msdn.microsoft.com/zh-cn/library/dd409436.aspx UML Sequence Diagrams: Guidelines http://msdn.microsoft.com/en-us/library/dd409389.aspx…

HDU 5860 Death Sequence(递推) 题目链接http://acm.split.hdu.edu.cn/showproblem.php?pid=5860 Description You may heard of the Joseph Problem, the story comes from a Jewish historian living in 1st century. He and his 40 comrade soldiers were trapped in a cave…

E. Correct Bracket Sequence Editor 题目连接: http://www.codeforces.com/contest/670/problem/E Description Recently Polycarp started to develop a text editor that works only with correct bracket sequences (abbreviated as CBS). Note that a bracket sequence…

往届期末绘图的题目例如以下所看到的: Read the providing materials carefully, and then do tasks. 2.1: Use Case Diagram Develop a detailed use case model for the application "X单词". The model should take auser's(rather than system's) perspective.Define use cases for…