随笔分类 - ACM-ACAM
摘要：What-The-Fatherland is a strange country! All phone numbers there are strings consisting of lowercase English letters. What is double strange that a p
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摘要：题解：题意不再说了，题目很清楚的。 思路：因为N<=10,所以考虑状态压缩 AC自动机中 val[1<<i]: 表示第i个字符串。AC自动机中fail指针是指当前后缀在其他串里面所能匹配的最长前缀的长度，然后我们在这里统计一下以该点结束所能包含的字符串的数量(就是在fail树中该点到根节点所经过的所
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摘要：Recently George is preparing for the Graduate Record Examinations (GRE for short). Obviously the most important thing is reciting the words. Now Georg
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摘要：E. e-Government time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output The best programmers of E
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摘要：All submissions for this problem are available. Chef likes numbers and number theory, we all know that. There are N digit strings that he particularly
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摘要：Great! Your new software is almost finished! The only thing left to do is archiving all your n resource files into a big one. Wait a minute… you reali
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摘要：当太阳的光辉逐渐被月亮遮蔽，世界失去了光明，大地迎来最黑暗的时刻。。。。在这样的时刻，人们却异常兴奋——我们能在有生之年看到500年一遇的世界奇观，那是多么幸福的事儿啊~~ 但网路上总有那么些网站，开始借着民众的好奇心，打着介绍日食的旗号，大肆传播病毒。小t不幸成为受害者之一。小t如此生气，他决定要
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摘要：M - 图书馆Time Limit: 2000 MS Memory Limit: 256 MBSubmit Status电子科技太学图书馆创建于1956年，馆舍总面积66974平方米，各类阅览室37个，阅览座位10023个（含在建新馆），馆藏总量371.8万册...
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