09 2019 档案
摘要:Escape Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 16 Accepted Submission(s): 12 Problem De
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摘要:Decimal Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 103 Accepted Submission(s): 49 Problem
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摘要:Invoker Time Limit: 15000/12000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 117 Accepted Submission(s): 35 Proble
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摘要:队友过的:https://blog.csdn.net/liufengwei1/article/details/101632506 Forest Program Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (
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摘要:MUV LUV EXTRA Time Limit: 2000/1500 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 134 Accepted Submission(s): 49 Pr
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摘要:MUV LUV UNLIMITED Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 143 Accepted Submission(s): 1
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摘要:链接:https://ac.nowcoder.com/acm/contest/204/H来源:牛客网 题目描述 给定一棵 n 个点的树,其中 1 号结点是根,每个结点要么是黑色要么是白色 现在小 Bo 和小 Biao 要进行博弈,他们两轮流操作,每次选择一个黑色的结点将它变白,之后可以选择任意多个(
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摘要:Nim or not Nim? Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3759 Accepted Submission(s): 1937
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摘要:Georgia and Bob Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 14312 Accepted: 4840 Description Georgia and Bob decide to play a self-inve
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摘要:A country named Berland has n cities. They are numbered with integers from 1 to n. City with index 1 is the capital of the country. Some pairs of citi
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摘要:题意: 给了一个母串S, 每次循环给了一个模板串,问模板串在母 串中“匹配”了多少次?“匹配”的意思就是首字母和尾字母一样, 中间字母顺序可以换。 题解: 字符串hash.我们将询问字符串的首尾特殊hash,然后将询问串的长度存入到vector里面。 然后遍历一遍原串,将所有是询问串长度的子串的哈希
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摘要:题目: 给定一棵树, 带边权。 现在有2种操作: 1.修改第i条边的权值。 2.询问u到其他一个任意点的最大距离是多少。 题解: 树的直径可以通过两次 dfs() 的方法求得。换句话说,到任意点最远的点,一定是直径的某个端点(反证法)。 • 因此原问题转化为动态维护直径,然后再支持询问两个点的距离,
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摘要:After a long lasting war on words, a war on arms finally breaks out between littleken’s and KnuthOcean’s kingdoms. A sudden and violent assault by Knu
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摘要:bobo has a tree, whose vertices are conveniently labeled by 1,2,…,n. At the very begining, the i-th vertex is assigned with weight w i.There are q ope
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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:Typewriter Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 720 Accepted Submission(s): 225 Prob
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摘要:Battle over Cities Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 467 Accepted Submission(s): 1
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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:题解:n个集合,你要进行m个操作。总共有3种操作。第一种,合并两个集合x和y。第二张,把特定的集合里面所有的数字加一。第三种,询问在某个集合里面,对于所有数字对2的k次方取模后,有多少个数字等于x。 思路:我们可以对于每一个节点保存一个lazy标记,这个标记类似于线段树中的lazy标记。每次整个集合
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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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