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poj1200:http://poj.org/problem?id=1200题意:给你一个有m种字符串,求长度为n的连续子串由多少种。题解:网上的代码都是hash,但是本人觉得hash有问题,就是n,m稍微大点,hash的值都会爆出int,无法开数组来记录该串是否被记录。可能数据弱,结果hash竟然...
分类:其他好文   时间:2014-08-10 23:58:00    阅读次数:559
2014 (多校)1011 ZCC Loves Codefires
自从做了多校,整个人都不好了,老是被高中生就算了,题老是都不懂=-=原谅我是个菜鸟,原谅我智力不行。唯一的水题。Problem Description Though ZCC has many Fans, ZCC himself is a crazy Fan of a coder, called .....
分类:其他好文   时间:2014-08-09 21:06:09    阅读次数:259
HDU4915:Parenthese sequence(贪心)
Problem Description bobo found an ancient string. The string contains only three charaters -- "(", ")" and "?". bobo would like to replace each "?" with "(" or ")" so that the string is valid (d...
分类:其他好文   时间:2014-08-08 18:15:06    阅读次数:273
HDU4911-Inversion(树状数组)
Inversion Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 914    Accepted Submission(s): 380 Problem Description bobo has a seque...
分类:其他好文   时间:2014-08-06 23:07:22    阅读次数:294
ZOJ 3524 Crazy Shopping DAG上的完全背包
http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=4439题意:n个点的有向无环图,边有长度,从一个点到另一点消耗背包重量与边长的乘积。每个点卖物品,价值v,重量w,数量无限,给定起点,和背包容量,可以在任意点停止,问最大化所获得价...
分类:其他好文   时间:2014-08-06 22:31:32    阅读次数:290
SQL 查询当天,本月,本周的记录
本文转载自Crazy CoderSELECT * FROM 表 WHERE CONVERT(Nvarchar, dateandtime, 111) = CONVERT(Nvarchar, GETDATE(), 111) ORDER BY dateandtime DESC本月记录SELECT * FR...
分类:数据库   时间:2014-08-06 17:28:51    阅读次数:356
HDU4920:Matrix multiplication
Problem Description Given two matrices A and B of size n×n, find the product of them. bobo hates big integers. So you are only asked to find the result modulo 3.   Input The input con...
分类:其他好文   时间:2014-08-06 14:58:51    阅读次数:220
HDU4911:Inversion
Problem Description bobo has a sequence a1,a2,…,an. He is allowed to swap two adjacent numbers for no more than k times. Find the minimum number of inversions after his swaps. Note: The numbe...
分类:其他好文   时间:2014-08-06 14:51:38    阅读次数:177
HDU 4912 lca贪心
Paths on the tree Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 297    Accepted Submission(s): 93 Problem Description bobo has a tr...
分类:其他好文   时间:2014-08-06 11:52:11    阅读次数:284
HDU 4916 树形dp
Count on the path Time Limit: 5000/2500 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 92    Accepted Submission(s): 10 Problem Description bobo has a tre...
分类:其他好文   时间:2014-08-06 11:51:59    阅读次数:232
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