摘要：
接触到个不错的网站：http://www.codechef.com/有空研究下 阅读全文
摘要：
View Code 1 “Do not spend all your time on training or studying – this way you will probably become very exhausted and unwilling to compete more. Whatever you do – have fun. Once you find programming is no fun anymore – drop it. Play soccer, find a girlfriend, study something not related to programm 阅读全文
摘要：
JTrim the NailsBFS()乱搞fingernail记为goal(1<<M-1)M位的1。nail clipper记录正串和反串的状态，从初始状态搜索到变为0为最小的步数。状态压缩DP从最开始的goal，进过修减，goal变的越来越小，符合无后效性，每步记录最小。 阅读全文