http://blog.csdn.net/tianmo2010/article/category/1117168
http://wenku.baidu.com/view/f4fd580b76c66137ee061917.html
http://www.cnblogs.com/waytofall/archive/2012/04/10/2439820.html最大和子数组
字符串反转http://www.cnblogs.com/pianoid/archive/2011/10/30/string_reverse_in_c_language.html
腾讯:登录时间http://blog.sina.com.cn/s/blog_7ebe664201013ggv.html
http://blog.csdn.net/vshuang/article/details/5423604
http://blog.sina.com.cn/s/blog_74d8b39e01016dbm.html
http://djt.qq.com/bbs/thread-245-1-1.html
判断单链表是否有环http://blog.sina.com.cn/s/blog_3ee549da01009nhq.html。http://www.cnblogs.com/zhyg6516/archive/2011/03/29/1998831.html两种思路http://www.nowamagic.net/librarys/veda/detail/1837完整答案