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
                             
                    
                        
                            
                            
                                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
                             
                    
                        
                            
                            
                                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
                             
                    
                        
                            
                            
                                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
                             
                    
                        
                            
                            
                                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 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
                             
                    
                        
                            
                            
                                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
                             
                    
                        
                            
                            
                                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
                             
                    
                        
                            
                            
                                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
                             
                    
                        
                            
                            
                                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