针对2011 ACM/ICPC 北京赛区10月23日现场赛，本日志汇总网上ACMer们发布的解题报告，方便大家互相学习。欢迎补充和完善本日志。
感谢所有及时发布解题报告，和大家分享知识的各位神牛。
A Qin Shi Huang’s National Road System (BUPT 238, HDU 4081)
http://yzmduncan.iteye.com/blog/1209727
http://blog.renren.com/blog/236347931/772593799
http://blog.csdn.net/sdj222555/article/details/6902589
http://blog.csdn.net/zxy_snow/article/details/6903161
B Hou Yi’s secret (BUPT 239, HDU 4082)
http://blog.csdn.net/zxy_snow/article/details/6904074
http://www.shuizilong.com/house/archives/3494
http://972169909-qq-com.iteye.com/blog/1254850 (感谢KID投稿)
C Three Kingdom Chess (BUPT 240, HDU 4083)
http://blog.renren.com/blog/282892548/773158465
D The Voyages of Zheng He (BUPT 241, HDU 4084)
E Peach Blossom Spring (BUPT 242, HDU 4085)
http://hi.baidu.com/nyroro/blog/item/c140f2f4a5491a39bd31095b.html
http://zrapton.com/542/2011-asia-beijing-regional/
http://www.fcjy.org/?p=69
F Harry Potter and the holy banquet (BUPT 243, HDU 4086)
G A Letter to Programmers (BUPT 244, HDU 4087)
http://acm.nbu.edu.cn/SwordHoly/?p=363
http://zrapton.com/542/2011-asia-beijing-regional/
H Healing (BUPT 245, HDU 4088)
I Activation (BUPT 246, HDU 4089)
http://www.shuizilong.com/house/archives/3494
http://blog.csdn.net/morgan_xww/article/details/6920236
J Gem And Prince (BUPT 247, HDU 4090)
http://blog.csdn.net/sdj222555/article/details/6906351
http://www.cppblog.com/aswmtjdsj/archive/2011/10/26/159128.html
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http://blog.csdn.net/sdj222555/article/details/6906351
J题
http://www.cppblog.com/aswmtjdsj/archive/2011/10/26/159128.html
好歹是我出的题。。
I题的题解链接打不开。。。
这里打开正常，也许是你那里被墙了。可以尝试翻墙。
那个。。啥。。。。我那个渣站自己都经常打不开的说。。
。。。似乎就是北方的网络会经常访问不能。。。
（。。虽然具体是什么原因我一直想法深纠来着。。）
C题。。终于好了。
http://blog.renren.com/blog/282892548/773158465
http://blog.csdn.net/morgan_xww/article/details/6920236 I题
E，状压dp解法：
http://www.fcjy.org/?p=69