Add c version
Add the chapter02
Update 01.0.md

review
Fix bug in bit hack, and I think the #84 pull request is not good
Add chapter03 heap sort max/min k number
* Check in draft
* Formatting change
* Link up new chapter in preface
* Added an ignore file
* typo squish
add python style method
add chapter 01 03
update 03.4 using python
add projecteuler 021 Amicable numbers answers
Merge pull request #96 from sallen450/master

Add Chapter 3.1 Top K算法问题的实现
Merge pull request #94 from jayzeng/master

十四、亦第三章再续：快速选择SELECT算法的深入分析与实现
Merge pull request #95 from liuyang1/master

add some python code as example
Update preface.md
Merge pull request #97 from sallen450/master

修改正文中的* 为 \*
Update preface.md
remove all &emsp;
Merge pull request #88 from demonyan/patch-3

Update 01.0.md