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POJ3267——The Cow Lexicon(动态规划)
The Cow LexiconDescriptionFew know that the cows have their own dictionary with W (1 ≤ W ≤ 600) words, each containing no more 25 of the characters 'a...
分类:其他好文   时间:2014-11-13 16:05:50    阅读次数:201
POJ3176——Cow Bowling(动态规划)
Cow BowlingDescriptionThe cows don't use actual bowling balls when they go bowling. They each take a number (in the range 0..99), though, and line up ...
分类:其他好文   时间:2014-11-13 14:33:03    阅读次数:270
POJ 3268 Bookshelf 2 动态规划法题解
Description Farmer John recently bought another bookshelf for the cow library, but the shelf is getting filled up quite quickly, and now the only available space is at the top. FJ has N cows (1 ≤ ...
分类:其他好文   时间:2014-11-12 09:21:52    阅读次数:238
MySQL索引背后的数据结构及算法原理
摘要 本文以MySQL数据库为研究对象,讨论与数据库索引相关的一些话题。特别需要说明的是,MySQL支持诸多存储引擎,而各种存储引擎对索引的支持也各不相同,因此MySQL数据库支持多种索引类型,如BTree索引,哈希索...
分类:数据库   时间:2014-11-11 19:22:36    阅读次数:337
POJ3616 Milking Time 【DP】
Milking Time Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 4917   Accepted: 2062 Description Bessie is such a hard-working cow. In fact, she is so focuse...
分类:其他好文   时间:2014-11-11 19:18:30    阅读次数:162
usaco6.1-Cow XOR:trie树
Cow XORAdrian Vladu -- 2005Farmer John is stuck with another problem while feeding his cows.All of his N (1 ≤ N ≤ 100,000) cows (numbered 1..N) areli....
分类:其他好文   时间:2014-11-10 19:44:44    阅读次数:295
POJ3268(Dijkstra)
Silver Cow Party Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 13103   Accepted: 5883 题目链接:http://poj.org/problem?id=3268 Description One cow from each of...
分类:其他好文   时间:2014-11-08 19:43:11    阅读次数:252
数据库导入提示USING BTREE 错误的解决办法
用phpmyadmin导入数据提示USING BTREE 错误,原因是mysql不兼容,因为mysql 5.14版本之前不认识 USING BTREE,sql执行到这一段就进行不下去了。解决方法如下,打开sql文件找到如下代码段 CREATETABLE `dede_purview` (       `mid` mediumint(8) DEFAULT'0',       `typeid` s...
分类:数据库   时间:2014-11-08 12:06:27    阅读次数:208
POJ 3268 Silver Cow Party
Silver Cow PartyTime Limit:2000MSMemory Limit:65536KTotal Submissions:13100Accepted:5881DescriptionOne cow from each o...
分类:其他好文   时间:2014-11-08 02:03:54    阅读次数:276
POJ 3189 Steady Cow Assignment(最大流)
POJ 3189 Steady Cow Assignment 题目链接 题意:一些牛,每个牛心目中都有一个牛棚排名,然后给定每个牛棚容量,要求分配这些牛给牛棚,使得所有牛对牛棚的排名差距尽量小 思路:这种题的标准解法都是二分一个差值,枚举下界确定上界,然后建图判断,这题就利用最大流进行判断,值得一提的是dinic的效率加了减枝还是是卡着时间过的,这题理论上用sap或者二分图多重匹...
分类:其他好文   时间:2014-11-07 23:31:18    阅读次数:412
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