generating permunation——全排列(算法汇总) #include <iostream> #include <string> #include <vector> #include <list> #include <queue> #include <iterator> #include <algorithm> using namespace std; #define MAX 10 int used[MAX]…

本文一共提供了4种全排列的方法,包括递归非字典序版本.递归字典序版本.标准库版本和BFS字典序版本,当然BFS非字典序实现相对于BFS字典序版本更加简洁,稍加修改即可. 说明:递归版本基于网上现有代码修改而成,标准库版本参照msdn sample修改而成,最后的BFS版本是由本人在看到题目后思考而来,并实现之(递归版本很久之前写过),所有四种算法都加了模板.当然BFS版本效率相对于递归要快,相对于STL版本则较慢,仅仅提供一种思路而已. 注:对于这种小算法,自己主动思考可以开阔思路,而且想出一种…

D. Generating Sets time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given a set Y of n distinct positive integers y1, y2, ..., yn. Set X of n distinct positive integers x1, x2, ...,…

Xcode8 pod install 报错 "Generating Pods project Abort trap 今天在写一个新项目的时候,使用cocoapods在执行 $ pod install 的时候,终端提示 Generating Pods project Abort trap: 6 解决办法: 删除所有cocoapods gems, 依次执行以下命令: sudo gem uninstall cocoapods sudo gem uninstall cocoapods-core sudo…

D. Generating Sets time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given a set Y of n distinct positive integers y1, y2, ..., yn. Set X of n distinct positive integers x1, x2, ...,…

[转]今天在调试springMVC的时候,在将一个对象返回为json串的时候,浏览器中出现异常: The resource identified by this request is only capable of generating responses with characteristics not acceptable according to the request "accept" headers (). 从网上查了下,说是让配置下json转化bean: <bean…

More info here: http://blogs.msdn.com/b/yojoshi/archive/2011/05/14/xml-serialization-and-deserialization-entity-classes-with-xsd-exe.aspx Introduction Many time we come across the need of parsing XML document and creating entities. These entities are…

Doc ID 461911.1 Patch 6602742 Applies to: Oracle Database - Enterprise Edition - Version 10.2.0.3 and later Information in this document applies to any platform.***Checked for relevance on 09-Nov-2011*** Symptoms After applying patch set 10.2.0.3, th…

Part 1: Moments Definition 1 For each integer $n$, the nth moment of $X$, $\mu_n^{'}$ is \[\mu_{n}^{'} = EX^n.\] The nth central moment of $X$, $\mu_n$, is \[ \mu_n = E(X-\mu)^n,\] where $\mu=\mu_{1}^{'}=EX$. Definition 2 The variance of a random var…

Which Clang Warning Is Generating This Message? 根据前面页面制作的pdf:clangwarninglist.pdf 百度网盘:http://pan.baidu.com/s/1mi6RkZA 360网盘:https://yunpan.cn/OcvxBUNnSdd2ma (提取码:7170)…