Free Algorithms Book免费的算法书
This free book, named这个免费的书籍，名为 Algorithms算法 , contains algorithm topics carefully selected and clustered. ，包含算法的主题精心挑选的群集。 Instead of dwelling on formal proofs the authors distilled in each case the crisp mathematical idea that makes the algorithm work.而不是居住在正式证明作者蒸馏在每一种情况下脆，数学的概念，使算法的工作。 In other words, they emphasized rigor over formalism.在其他换句话说，他们强调，严谨超过形式主义。
There are four parts to this Algorithms books:有四个部分，这个算法的书籍：
Part I of the book starts at the historical beginning: numbers, primality, and factoring, and also includes the RSA cryptosystem, and divide-and-conquer algorithms for integer multiplication, sorting and median finding, as well as the fast Fourier transform.我的一部分，这本书开始的历史开始：号码，素性，理，还包括RSA密码系统，并分而治之算法的整数乘法，整理和中位数的发现，以及为快速傅立叶变换。
Part II, the most traditional section of the book, concentrates on data structures and graphs; the contrast here is between the intricate structure of the underlying problems and the short and crisp pieces of pseudocode that solve them.第二部分，最传统的节本书，集中于数据结构和图;对比这里是之间的错综复杂的结构的潜在问题和短期和脆件伪代码表示，解决这些问题。
Part III deals with the "sledgehammers" of the trade, techniques that are powerful and general: dynamic programming (a novel approach helps clarify this traditional stumbling block for students) and linear programming (a clean and intuitive treatment of the simplex algorithm, duality, and reductions to the basic problem).第三部分涉及“ sledgehammers ”的贸易，技术，是功能强大的和一般：动态规划（一种新颖的方法，有助于澄清这一传统的绊脚石学生）和线性规划（一个清洁的和直观的治疗单纯形算法，对偶，和削减的基本问题） 。
Part IV is about ways of dealing with hard problems: NP-completeness, various heuristics, as well as quantum algorithms, perhaps the most advanced and modern topic.第四部分是关于如何处理与努力的问题：为NP -完整性，各种启发式，以及量子算法，也许是最先进和最现代的话题。 As it happens, we end the story exactly where we started it, with Shor's quantum algorithm for factoring.因为它发生，我们结束的故事，正是我们开始，与绍尔的量子算法理。
Each chapter is a pdf file, and the每章是一个PDF档案，以及 whole book整本书 is also available as a pdf.也可作为一个PDF文件。
Table of contents目录
Preface前言
Chapter 0:章0 ： Prologue序幕
Chapter 1:第1章： Algorithms with numbers算法与号码
Chapter 2:第2章： Divide-and-conquer algorithms分而治之算法
Chapter 3:第3章： Decompositions of graphs分解图
Chapter 4:第4章： Paths in graphs在路径图
Chapter 5:第5章： Greedy algorithms贪婪算法
Chapter 6:第六章： Dynamic programming动态规划
Chapter 7:第7章： Linear programming线性规划
Chapter 8:第8章： NP-complete problems NP完全问题
Chapter 9:第9章： Coping with NP-completeness应付的NP完整性
Chapter 10:第10章： Quantum algorithms量子算法
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