Quotes of the Day

本文引用了Samuel Johnson关于爱国主义的名言,并通过William J.H. Boetcker的观点强调了即使不被大众接受也要坚持做正确事情的重要性。这不仅是个人品格的体现,也是获得自我尊重的关键。
# T671331 [ZJCPC 2017] Problem Preparation ## 题目描述 It's time to prepare the problems for the $14$-th Zhejiang Provincial Collegiate Programming Contest! Almost all members of SUA programming contest problem setter team brainstorm and code day and night to catch the deadline, and empty bottles of $\textit{Marjar Cola}$ litter the floor almost everywhere! To make matters worse, one of the team member fell ill just before the deadline. So you, a brilliant student, are found by the team leader Dai to help the team check the problems' arrangement. Now you are given the difficulty score of all problems. Dai introduces you the rules of the arrangement: - The number of problems should lie between $10$ and $13$ (both inclusive). - The difficulty scores of the easiest problems (that is to say, the problems with the smallest difficulty scores) should be equal to $1$. - At least two problems should have their difficulty scores equal to $1$. - After sorting the problems by their difficulty scores in ascending order, the absolute value of the difference of the difficulty scores between two neighboring problems should be no larger than $2$. BUT, if one of the two neighboring problems is the hardest problem, there is no limitation about the difference of the difficulty scores between them. The hardest problem is the problem with the largest difficulty score. It's guaranteed that there is exactly one hardest problem. The team members have given you lots of possible arrangements. Please check whether these arrangements obey the rules or not. ## 输入格式 There are multiple test cases. The first line of the input is an integer $T$ ($1 \le T \le 10^4$), indicating the number of test cases. Then $T$ test cases follow. The first line of each test case contains one integer $n$ ($1 \le n \le 100$), indicating the number of problems. The next line contains $n$ integers $s_1, s_2, \dots, s_n$ ($-1000 \le s_i \le 1000$), indicating the difficulty score of each problem. We kindly remind you that this problem contains large I/O file, so it's recommended to use a faster I/O method. For example, you can use scanf/printf instead of cin/cout in C++. ## 输出格式 For each test case, output "Yes" (without quotes) if the arrangement follows the rules, otherwise output "No" (without quotes). ## 输入输出样例 #1 ### 输入 #1 ``` 8 9 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 999 1 1 2 3 4 5 6 7 8 9 11 999 1 3 5 7 9 11 13 17 19 21 10 15 1 13 17 1 7 9 5 3 11 13 1 1 1 1 1 1 1 1 1 1 1 1 2 10 2 3 4 5 6 7 8 9 10 11 10 15 1 13 3 6 5 4 7 1 14 ``` ### 输出 #1 ``` No No Yes No Yes Yes No No ``` ## 说明/提示 The first arrangement has $9$ problems only, which violates the first rule. Only one problem in the second and the fourth arrangement has a difficulty score of $1$, which violates the third rule. The easiest problem in the seventh arrangement is a problem with a difficulty score of $2$, which violates the second rule. After sorting the problems of the eighth arrangement by their difficulty scores in ascending order, we can get the sequence $\{1, 1, 3, 4, 5, 6, 7, 13, 14, 15\}$. We can easily discover that $|13-7| = 6 > 2$. As the problem with a difficulty score of $13$ is not the hardest problem (the hardest problem in this arrangement is the problem with a difficulty score of $15$), it violates the fourth rule.
09-30
分析并翻译下面英文文档内容:Operation The ftpAdapter searches a specific folder for files with an '.xml' or '.rdy' extension. When it finds an xml file, the file is renamed with an '.rdy' extension. When an '.rdy' file is found, an application event is sent to the BAP application specified. The name of the event is the same as the root node name. The event data is the complete contetts of the file. The file is then deleted. Config file A file adapterName.exe.config must exist to tell the application how to communicate with BAP. This file must reside in the same folder as the executable. The default config file is shown below. Only the name of the BAP application server (in red) needs to be changed. <?xml version="1.0" encoding="utf-8" ?> <configuration> <appSettings> <add key="DiscoveryUrl" value="http://pe-phoenix1:57151/CDiscovery.soap"></add> </appSettings> <system.runtime.remoting> <application> <service> <wellknown type="Brooks.ftpAdapter.MsgHandler, ftpAdapter" mode="Singleton" objectUri="ftpAdapter.soap" /> </service> <channels> <channel ref="http" port="64011"> <serverProviders> <provider ref="wsdl" /> <formatter ref="soap" typeFilterLevel="Full" /> <formatter ref="binary" typeFilterLevel="Full" /> </serverProviders> </channel> <channel ref="tcp" port="64012"> <serverProviders> <provider ref="wsdl" /> <formatter ref="soap" typeFilterLevel="Full" /> <formatter ref="binary" typeFilterLevel="Full" /> </serverProviders> </channel> </channels> </application> </system.runtime.remoting> </configuration> Configuring the Plug In Registration in the BAP Integration Editor Since the application adapter only sends messages to BAP and receives no commands, events or replies, only the application adapter name (line 1) in the Plug In Registration definition must be configured. All other fields should be left blank. In the events definitions section, the events must be defined as "From Application" and the event name and the root node name must be identical. The root node name is the Complex (list) item directly below the event name. This is required since the xml message does not have any information regarding the event name so this value will be used as the event name. The event definition must match exactly with the xml messages expected to be received. Command Line Arguments The ftpAdapter executable takes three optional command line arguments. The first argument is the path of the folder to search. The default folder is C:\xml. The second argument is the adapter name to send the events to. A configuration file must exist with this name plus .exe.config. The third command line argument is the delay, in milliseconds, between subsequent scans of the folder. The default is 5000. The minimum is 1000. Monitoring The ftpAdapter application writes several messages to a console window. The following is displayed during initialization. The first three lines show the command line arguments or defaults for them. Then the Starting message and the adapter configuration information. This information is useful to determine if the adapter is correctly configured. Adapter: adapterName Path: path ScanRate: nnnn Starting adapterName --------------------------------------------------------------- adapterName Address: http://10.36.254.87:64011/adapterName.soap BAP Discovery Address: http://pe-phoenix1:57151/CDiscovery.soap --------------------------------------------------------------- Dynamic messages displayed for each file found in the specified folder. nnn is a count of how many messages have been found and sent. renamed file 'path\file.xml' Sent event #nnn, eventName, to BAP XML message deleted file 'path\file.rdy' Error Messages The following exceptions are caught and a message is written to the console window. 1. exception parsing xml message The third argument must be a decimal number of milliseconds. If there are spaces in the path then it must be enclosed in quotes. 2. exception scanning directory path Verify that the path argument is correct and that the specified folder exists. 3. Exception Initializing: Verify that the adaptername.exe.config file exists and is correctly configured. This file must be in the default path of the executeable. 4. exception parsing xml message The message is parsed to determine the event name. The event used is the root node name. 5. Cmd From BAP, msg This adapter is not configured to accept commands from BAP. Logging All of the messages written to the Console window are also written to a log file. The log file is a text file with the named the current day of the week. It is written in the same folder specified in the path command line argument.
11-21
Search Search v0.5.6 released 2020-02-24 (ti:"artificial intelligence" OR ti:"AI algorithm") AND submittedDate:[2020-01-01 TO 2024-12-31] AND language:en AND comment:"6 pages" OR comment:"7 pages" OR comment:"8 pages" All fields Show abstracts Hide abstracts Advanced Search Searching by Author Name Using the Author(s) field produces best results for author name searches. For the most precise name search, follow surname(s), forename(s) or surname(s), initial(s) pattern: example Hawking, S or Hawking, Stephen For best results on multiple author names, separate individuals with a ; (semicolon). Example: Jin, D S; Ye, J Author names enclosed in quotes will return only exact matches. For example, "Stephen Hawking" will not return matches for Stephen W. Hawking. Diacritic character variants are automatically searched in the Author(s) field. Queries with no punctuation will treat each term independently. Searching by subcategory To search within a subcategory select All fields. A subcategory search can be combined with an author or keyword search by clicking on add another term in advanced search. Tips Wildcards: Use ? to replace a single character or * to replace any number of characters. Can be used in any field, but not in the first character position. See Journal References tips for exceptions. Expressions: TeX expressions can be searched, enclosed in single $ characters. Phrases: Enclose phrases in double quotes for exact matches in title, abstract, and comments. Dates: Sorting by announcement date will use the year and month the original version (v1) of the paper was announced. Sorting by submission date will use the year, month and day the latest version of the paper was submitted. Journal References: If a journal reference search contains a wildcard, matches will be made using wildcard matching as expected. For example, math* will match math, maths, mathematics. If a journal reference search does not contain a wildcard, only exact phrases entered will be matched. For example, math would match math or math and science but not maths or mathematics. All journal reference searches that do not contain a wildcard are literal searches: a search for Physica A will match all papers with journal references containing Physica A, but a search for Physica A, 245 (1997) 181 will only return the paper with journal reference Physica A, 245 (1997) 181. About Help Contact Subscribe Copyright Privacy Policy Web Accessibility Assistance arXiv Operational Status Get status notifications via
05-12
【无人机】基于改进粒子群算法的无人机路径规划研究[和遗传算法、粒子群算法进行比较](Matlab代码实现)内容概要:本文围绕基于改进粒子群算法的无人机路径规划展开研究,重点探讨了在复杂环境中利用改进粒子群算法(PSO)实现无人机三维路径规划的方法,并将其与遗传算法(GA)、标准粒子群算法等传统优化算法进行对比分析。研究内容涵盖路径规划的多目标优化、避障策略、航路点约束以及算法收敛性和寻优能力的评估,所有实验均通过Matlab代码实现,提供了完整的仿真验证流程。文章还提到了多种智能优化算法在无人机路径规划中的应用比较,突出了改进PSO在收敛速度和全局寻优方面的优势。; 适合人群:具备一定Matlab编程基础和优化算法知识的研究生、科研人员及从事无人机路径规划、智能优化算法研究的相关技术人员。; 使用场景及目标:①用于无人机在复杂地形或动态环境下的三维路径规划仿真研究;②比较不同智能优化算法(如PSO、GA、蚁群算法、RRT等)在路径规划中的性能差异;③为多目标优化问题提供算法选型和改进思路。; 阅读建议:建议读者结合文中提供的Matlab代码进行实践操作,重点关注算法的参数设置、适应度函数设计及路径约束处理方式,同时可参考文中提到的多种算法对比思路,拓展到其他智能优化算法的研究与改进中。
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