UVA Mapping the Swaps

题目例如以下: Mapping the Swaps Sorting an array can be done by swapping certain pairs of adjacent entriesin the array. This is the fundamental technique used in the well-knownbubble sort. If we list the identities of the pairs to be swapped, in thesequen…

uva331 - Mapping the Swaps

Mapping the Swaps Sorting an array can be done by swapping certain pairs of adjacent entries in the array. This is the fundamental technique used in the well-known bubble sort. If we list the identities of the pairs to be swapped, in the sequence the…

uva 331 Mapping the Swaps 求交换排序的map 纯DFS

给出一个序列,每次交换两个数,求有几种交换方法能使序列变成升序. n不大于5,用dfs做. 代码: #include <cstdio> #include <cstring> #include <algorithm> using namespace std; int num[8], ans, n; bool check() { //check if the array is inorder for (int i = 0; i < n - 1; i++) if (nu…

UVA题目分类

题目 Volume 0. Getting Started 开始10055 - Hashmat the Brave Warrior 10071 - Back to High School Physics 10300 - Ecological Premium 458 - The Decoder 494 - Kindergarten Counting Game 414 - Machined Surfaces 490 - Rotating Sentences 445 - Marvelous Mazes…

开篇，UVA 755 && POJ 1002 487--3279 (Trie + DFS / sort)

博客第一篇写在11月1号,果然die die die die die alone~ 一道不太难的题,白书里被放到排序这一节,半年前用快排A过一次,但是现在做的时候发现可以用字典树加深搜,于是乐呵呵的开始敲了,后来被卡了两天,一直以为算法错了,最后发现是输出答案时忘了回溯,这问题之前没怎么注意过,也算不小的收获. 字典树A了之后换sort来写,没想到快排效率更高,时间减少了一半,在POJ上A了之后重新在UVA上提交,居然WA了,调试半个小时,发现是变长数组的问题,看来UVA上的编译器对c99的支持…

AutoMapper：Unmapped members were found. Review the types and members below. Add a custom mapping expression, ignore, add a custom resolver, or modify the source/destination type

异常处理汇总-后端系列 http://www.cnblogs.com/dunitian/p/4523006.html 应用场景:ViewModel==>Mode映射的时候出错 AutoMappe r错误信息:Unmapped members were found. Review the types and members below.Add a custom mapping expression, ignore, add a custom resolver, or modify the sour…

使用MyBatis Generator自动创建代码(dao,mapping,poji)

连接的数据库为SQL server2008,所以需要的文件为sqljdbc4.jar 使用的lib库有: 在lib库目录下新建一个src文件夹用来存放生成的文件,然后新建generatorConfig.xml 里面代码为: 1 <?xml version="1.0" encoding="UTF-8"?> 2 <!DOCTYPE generatorConfiguration 3 PUBLIC "-//mybatis.org//DTD MyB…

Nhibernate mapping 文件编写

生成工具软件现在生成工具软件有很多了,例如商业软件:NMG.CodeSmith.Visual NHibernate,开源软件:MyGeneration.NHibernate Modeller.AjGenesis等. 手动编写XML方式发现更多的人都喜欢自己手动编写XML文件的,这样比较灵活.简便,在这里我也特别推荐使用,一方面熟悉了Mapping技能,一方面增加了经验. 我们只需为Microsoft Visual Studio 2010添加编写NHibernate配置和映射智能提示的功能.只…

mybatis generator.xml 配置自动生成model,dao,mapping

generator.xml文件: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.…

Spring MVC --->>>No mapping found for HTTP request with URI

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  <property name="prefix" value="/WEB-INF/pages/" /> <property name="suffix" value=".…

elasticsearch 之mapping

搭好elk 后,有时候会发现kibana 统计数据时,数据类型不对,这个时候就和elasticsearch的mapping有关,虽然我们可以用logstash修改传入es里的数据类型,比如 float 或者int 或者string.但是没有double等类型,就算转换了,你会发现写入es的数据还是根据es里mapping表来定义的.接下来我们来学习修改es的mapping,当然mapping的功能有很多种,比如定义索引是否分词,分片和副本的数量是多少等等. 1) 什么是mapping ES的ma…

KnockoutJS 3.X API 第八章映射(mapping)插件

Knockout旨在允许您将任意JavaScript对象用作视图模型. 只要一些视图模型的属性是observables,您可以使用KO将它们绑定到您的UI,并且UI将在可观察属性更改时自动更新. 大多数应用程序需要从后端服务器获取数据. 由于服务器没有任何可观察的概念,它只提供一个纯JavaScript对象(通常序列化为JSON). 映射插件提供了一种简单的方法来将该简单的JavaScript对象映射到具有适当的observables的视图模型中. 这是替代手动编写自己的JavaScript代码…

Elasticsearch 的坑爹事——记录一次mapping field修改过程

Elasticsearch 的坑爹事本文记录一次Elasticsearch mapping field修改过程团队使用Elasticsearch做日志的分类检索分析服务,使用了类似如下的_mapping { "settings" : { "number_of_shards" : 20 }, "mappings" : { "client" : { "properties" : { "ip&quo…

uva 1354 Mobile Computing ——yhx

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UVA 10564 Paths through the Hourglass[DP 打印]

UVA - 10564 Paths through the Hourglass 题意: 要求从第一层走到最下面一层,只能往左下或右下走问有多少条路径之和刚好等于S? 如果有的话,输出字典序最小的路径. f[i][j][k]从下往上到第i层第j个和为k的方案数上下转移不一样,分开处理没必要判断走出沙漏打印方案倒着找下去行了,尽量往左走沙茶的忘注释掉文件WA好多次 #include <iostream> #include <cstdio> #include <a…

UVA 11404 Palindromic Subsequence[DP LCS 打印]

UVA - 11404 Palindromic Subsequence 题意:一个字符串,删去0个或多个字符,输出字典序最小且最长的回文字符串不要求路径区间DP都可以做然而要字典序最小倒过来求LCS,转移同时维护f[i][j].s为当前状态字典序最小最优解 f[n][n].s的前半部分一定是回文串的前半部分(想想就行了) 当s的长度为奇时要多输出一个(因为这样长度+1,并且字典序保证最小(如axyzb bzyxa,就是axb|||不全是回文串的原因是后半部分的字典序回文串可能不是最小,多…

UVA&&POJ离散概率与数学期望入门练习[4]

POJ3869 Headshot 题意:给出左轮手枪的子弹序列,打了一枪没子弹,要使下一枪也没子弹概率最大应该rotate还是shoot 条件概率,|00|/(|00|+|01|)和|0|/n谁大的问题 |00|+|01|=|0| 注意序列是环形 // // main.cpp // poj3869 // // Created by Candy on 25/10/2016. // Copyright © 2016 Candy. All rights reserved. // #include <i…

UVA计数方法练习[3]

UVA - 11538 Chess Queen 题意:n*m放置两个互相攻击的后的方案数分开讨论行列两条对角线一个求和式可以化简后计算 // // main.cpp // uva11538 // // Created by Candy on 24/10/2016. // Copyright © 2016 Candy. All rights reserved. // #include <iostream> #include <cstdio> #include <cst…

UVA数学入门训练Round1[6]

UVA - 11388 GCD LCM 题意:输入g和l,找到a和b,gcd(a,b)=g,lacm(a,b)=l,a<b且a最小 g不能整除l时无解,否则一定g,l最小 #include <iostream> #include <cstdio> #include <cstring> #include <algorithm> #include <cmath> using namespace std; typedef long long ll…

UVA - 1625 Color Length[序列DP 代价计算技巧]

UVA - 1625 Color Length 白书很明显f[i][j]表示第一个取到i第二个取到j的代价问题在于代价的计算,并不知道每种颜色的开始和结束和模拟赛那道环形DP很想,计算这次转移会给其他的元素带来的代价,也就是转移前已经出现但还没结束的元素都会代价+1 预处理每种颜色在两个序列中出现的位置bg[i][0/1]和ed[i][0/1], 计算f[i][j]时同时计算w[i][j]为(i,j)这个状态已经出现还没结束的个数注意bg要先初始化为INF,计算w: if(b…

UVA - 10375 Choose and divide[唯一分解定理]

UVA - 10375 Choose and divide Choose and divide Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 4053 Accepted: 1318 Description The binomial coefficient C(m,n) is defined as m! C(m,n) = -------- n!(m-n)! Given four natural numbers p, q…

UVA - 11584 Partitioning by Palindromes[序列DP]

UVA - 11584 Partitioning by Palindromes We say a sequence of char- acters is a palindrome if it is the same written forwards and backwards. For example, ‘racecar’ is a palindrome, but ‘fastcar’ is not. A partition of a sequence of characters is a lis…

UVA - 1025 A Spy in the Metro[DP DAG]

UVA - 1025 A Spy in the Metro Secret agent Maria was sent to Algorithms City to carry out an especially dangerous mission. After several thrilling events we find her in the first station of Algorithms City Metro, examining the time table. The Algorit…

UVA - 11134 Fabled Rooks[贪心问题分解]

UVA - 11134 Fabled Rooks We would like to place n rooks, 1 ≤ n ≤ 5000, on a n × n board subject to the following restrictions The i-th rook can only be placed within the rectan- gle given by its left-upper corner (xli,yli) and its right- lower corner…

UVA - 11987 Almost Union-Find[并查集删除]

UVA - 11987 Almost Union-Find I hope you know the beautiful Union-Find structure. In this problem, you’re to implement something similar, but not identical. The data structure you need to write is also a collection of disjoint sets, supporting 3 oper…