转载请注明出处,谢谢!http://www.cnblogs.com/Asimple/p/5455125.html 快速排序(Quicksort)是对冒泡排序的一种改进. 快速排序由C. A. R. Hoare在1962年提出. 它的基本思想是:通过一趟排序将要排序的数据分割成独立的两部分,其中一部分的所有数据都比另外一部分的所有数据都要小,然后再按此方法对这两部分数据分别进行快速排序,整个排序过程可以递归进行,以此达到整个数据变成有序序列. 故此,在快排中,如何选好基准是一件很重要的…
题目描述 We know thatif a phone number A is another phone number B's prefix, B is not able to becalled. For an example, A is 123 while B is 12345, after pressing 123, we callA, and not able to call B. Given N phone numbers, your task is to find whether t…
题目描述 We know thatIvan gives Saya three problems to solve (Problem F), and this is the firstproblem. "We need a programmer to help us for some projects. If you show us that youor one of your friends is able to program, you can pass the first hurdle. I…
下面是一个<Teach Yourself C++ in 21 Days>的流程图,请各位程序员同仁认真领会.如果有必要,你可以查看这个图书以作参照:http://www.china-pub.com/27043 看完上面这个图片,我在想,我学习C++有12年了,好像C++也没有学得特别懂,看到STL和泛型,还是很头大.不过,我应该去考虑研究量子物理和生物化学,这样,我才能重返98年杀掉还在大学的我,然后达到21天搞定C++的目标.另外,得要特别提醒刚刚开始学习C++的朋友,第21天的时候,小心…
转:http://blog.csdn.net/pirage/article/details/9467547 LDA理论 David M. Blei, Andrew Y. Ng, and Michael I. Jordan. Latent dirichlet allocation. J. Mach. Learn. Res.,3:993–1022, March 2003. 开山之作 Rickjin. LDA数学八卦. 2013.2.8 传说中的“上帝掷骰子”的来源之处.这篇文章是一个连载的科普性博客…
Description We know that if a phone number A is another phone number B’s prefix, B is not able to be called. For an example, A is 123 while B is 12345, after pressing 123, we call A, and not able to call B. Given N phone numbers, your task is to find…