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cf16E Fish(状压DP)
题意:N只FISH。每个回合会有一只FISH吃掉另一个FISH。直到池塘里只剩一只FISH。给出aij:第i只FISH吃掉第J只FISH的概率。问每一只FISH是最后存活者的概率。InputThe first line contains integern(1?≤?n?≤?18) — the amou...
分类:其他好文   时间:2015-03-11 16:39:54    阅读次数:144
Go字符串函数
下面的代码中,列出了Go官方包中常见的字符串函数。package main import s "strings"import "fmt" //为打印函数起个小名儿,比较有特点的用法var p = fmt.Println func main() { p("Contains: ", s.Contains...
分类:其他好文   时间:2015-03-11 10:39:57    阅读次数:130
POJ2778---DNA Sequence(AC自动机+矩阵)
Description It’s well known that DNA Sequence is a sequence only contains A, C, T and G, and it’s very useful to analyze a segment of DNA Sequence,For example, if a animal’s DNA sequence contains segm...
分类:其他好文   时间:2015-03-10 23:18:27    阅读次数:201
2.:contains(text)过滤选择器
与上一节介绍的:eq(index)选择器按索引查找元素相比,有时候我们可能希望按照文本内容来查找一个或多个元素,那么使用:contains(text)选择器会更加方便, 它的功能是选择包含指定字符串的全部元素,它通常与其他元素结合使用,获取包含“text”字符串内容的全部元素对象。其中参数text表...
分类:其他好文   时间:2015-03-10 18:40:58    阅读次数:144
Log4j2使用总结
Log4j 2 包含了基于LMAX 分离库的下一代的异步日志系统,在多线程环境下,异步日志系统比?Log4j 1.x 和Logback 提高了10倍性能提升(吞吐量和延迟率 )。原文如下: Log4j 2 contains next-generation Asynchrono...
分类:其他好文   时间:2015-03-10 01:43:40    阅读次数:240
Mirantis Fuel fundations
Mirantis Nailgun is the most important service a RESTful application written in Python that contains all the business logic of the system (Multiple Wo...
分类:其他好文   时间:2015-03-09 23:44:59    阅读次数:355
Customers Who Never Order
Suppose that a website contains two tables, theCustomerstable and theOrderstable. Write a SQL query to find all customers who never order anything.Tab...
分类:其他好文   时间:2015-03-09 20:52:45    阅读次数:197
CF327D (dfs)
After too much playing on paper, Iahub has switched to computer games. The game he plays is called "Block Towers". It is played in a rectangular grid with n rows and m columns (it contains n?×?m cel...
分类:其他好文   时间:2015-03-09 14:33:43    阅读次数:151
A1064. Complete Binary Search Tree (30)
A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties:The left subtree of a node contains only nodes w...
分类:其他好文   时间:2015-03-09 00:24:54    阅读次数:207
【POJ2887】【块状链表】Big String
DescriptionYou are given a string and supposed to do some string manipulations.InputThe first line of the input contains the initial string. You can a...
分类:其他好文   时间:2015-03-08 22:58:09    阅读次数:697
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