算法教程（2）zz

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算法教程（3）zz

First off, we can use our Line-Point Distance code to test for the "BOUNDARY" case. If the distance from any segment to the test point is 0, then return "BOUNDARY". If you didn't have that code pre-written, however, it would probably b…

In the previous section we saw how to use vectors to solve geometry problems. Now we are going to learn how to use some basic linear algebra to do line intersection, and then apply line intersection to a couple of other problems. Line-Line Intersecti…

算法教程（1）zz

Introduction Many TopCoders seem to be mortally afraid of geometry problems. I think it's safe to say that the majority of them would be in favor of a ban on TopCoder geometry problems. However, geometry is a very important part of most graphics prog…

《Python算法教程》译者序

在计算机的世界中,算法本质上是我们对某一个问题或者某一类问题的解决方案.也就是说,如果我们想用计算机来解决问题的话,就必须将问题的解决思路准确而完整地描述出来,同时计算机也要能理解这个描述.这需要我们这些程序员将整个描述转化成一系列清晰的指令,这些指令要能接收满足一定规范的输入,并在有限的时间内产生出相应的输出.我们通常将这些指令称为程序,而算法则是程序的灵魂. 然而,程序光有灵魂是不够的.例如,诚然搜索算法可以用来解决搜索类问题,但我们通常是不会为搜索而搜索的.所有搜索算法在进入程序的时候,都…

51nod贪心算法教程

51nod确实是一个好oj,题目质量不错,wa了还放数据,学习算法来说挺好的,这次我做了几个水的贪心,虽然水,但是确实都很典型. 教程链接:http://www.51nod.com/tutorial/list.html 完美字符串约翰认为字符串的完美度等于它里面所有字母的完美度之和.每个字母的完美度可以由你来分配,不同字母的完美度不同,分别对应一个1-26之间的整数. 约翰不在乎字母大小写.(也就是说字母F和f)的完美度相同.给定一个字符串,输出它的最大可能的完美度.例如:dad,你可以将…

perforce 使用教程（zz)

http://www.perforce.com/documentation/perforce_technical_documentation http://blog.csdn.net/brucexu1978/article/details/7181768 http://www.perforce.com/perforce/doc.current/manuals/cmdref/sync.html P4递交建议流程: 1. p4 sync 2. 覆盖或者改动local文件 3. p4 delete o…