题目链接 传送门 题面 思路 设\(x=\prod\limits_{i=l}^{r}a_i\)=\(\prod\limits_{i=1}^{n}p_i^{c_i}\) 由欧拉函数是积性函数得： \[ \begin{aligned} \phi(x)&=\phi(\prod\limits_{i=1}^{n}p_i^{c_i})&\\ &=\prod\limits_{i=1}^{n}\phi(p_i^{c_i})&\\ &=\
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两个矩阵相乘的源程序 /**//*****************A=B*C******************/#include<stdio.h>#include<conio.h>#define X 3#define Y 3int a[X][Y];int b[X][Y];int c[X][Y];void matrix(int b[][X],int c[][Y]);main(){ int i,j,temp; clrsc
# tzselect Please identify a location so that time zone rules can be set correctly. Please select a continent or ocean. 1) Africa 2) Americas 3) Antarctica 4) Arctic Ocean 5) Asia 6) Atlantic Ocean 7) Australia 8) Europe 9) Indian Ocean 10) Pacific Ocean
<html> <head> <meta charset="UTF-8"> <title>超链接标签</title> </head> <body> <a href='http:www.baidu.com' target="_blank" >Please Click Me</a> </body> </htm
我的系统是centos，php是yum的5.6.40，php-ldap也是yum的5.6.40，配置好ldap后，登录时提示ERROR: PHP's 'ldap' extension is not installed/enabled. Please check your MRBS and web server configuration. 先是查看系统日志，或者php -m，提示：PHP Warning: PHP Startup: Unable to load
Guideline 2.1 - Performance - App Completeness We discovered one or more bugs in your app when reviewed on iPad running iOS 12.3.1 on Wi-Fi.Specifically, a network error message was displayed upon launch.Next StepsTo resolve this issue, please run your ap
2014 Land Rover Aurora with airbag NO. DK62-14D374-AG, use CG100 PROG III to repair the airbag without any problem. Car type: 2014 Land Rover AuroraAirbag No: DK62-14D374-AG CG100 Pro III repair airbag on Land Rover Aurora 2014: 1.Check the vehicle.2.The
1 I will check and reply as soon have new information. 我会检查即时反馈最新的信息 2 The spike was gone, it’s because we did the CM just now, pls ignore. 尖刀降下去了, 尖刀是因为我们刚才在做cm的缘故,请忽视这个它. 3 We received the following aler
jquery-validation是一款前端验证js插件，可以验证必填字段、邮件、URL、数字范围等，在表单中应用非常广泛。 官方网站 https://jqueryvalidation.org/ 下载地址:https://github.com/jquery-validation/jquery-validation/releases/tag/1.19.0 把页面下拉到底,选择第一个下载 引入关
centos7 安装后，意外出现Please make your choice from above ['q' to quit | 'c' to continue | 'r' to refresh]安装完成centos7后出现如下提示：Initial setup of CentOS Linux 7 (core)1) [x] Creat user 2) [!] License information (no user will be created
# money =int(input('你有多少钱?')) # if money > 50: # print ('打车回家') # b = input('到家了吗?') # if b == '到家了': # print ('我到家了阿') # else : # pass # please = input('你是男的还是女的?
php编译扩展库时报错：Cannot find autoconf. Please check your autoconf installation and the $PHP_AUTOCONF environment variable. Then, rerun this script. 解决方案： yum install m4 yum -y install autoconf
vscode断点，开启调试控制台报错： (node:11104) [DEP0062] DeprecationWarning: `node --debug` and `node --debug-brk` are invalid. Please use `node --inspect` or `node --inspect-brk` instead. 这是因为`node --debug` and `node --debug-brk`已经被废弃了。我们可以安
There is a skyscraping tree standing on the playground of Nanjing University of Science and Technology. On each branch of the tree is an integer (The tree can be treated as a connected graph with N vertices, while each branch can be treated as a vertex).
一、常见缩写 CC = carbon copy：抄送 FYI = for your information：供你参考 EOD = end of the day COB = close of the business 这两个词都是指下班前。需要催促某人在下班前给到回复的时候可以用用它们。 eg: Please let me know your thoughts COB today. 请在今天下班前让我
序言 python使用pdfkit中，如果使用pdfkit.fromurl 或者pdfkit.fromstring等，就会出现上述错误。而且如果你使用pip安装了 wkhtmltopdf，还是会出现这个问题： If this file exists please check that this process can read it. Otherwise please install wkhtmltopdf - https://github.c
学写了shell之后，想写一些简单的脚本进行熟悉shell，下面使用shell脚本写的冒泡排序 #!/usr/bin/bash# shell 实现冒泡排序# by 2019-5-15echo "please input number list"read -a arrsfor (( i=0; i<${#arrs[*]}; i=i+1 ))do for (( j=0; j<${#arrs[*]}-1; j=j+1 )) d
运行python文件出现，报错please select a valid interpreter 这是因为没有选择interpreter 解决方法如下 更改Pycharm的设置 1, 打开settings File >> Settings >> Project:PedestrianDetection >> Project Interpreter 2, 查找框输入interpreter 3, 选择一个Project Interpr
Please note that you must run ‘chmod +x /etc/rc.d/rc.local’ to ensure
ECON4016 - FINAL EXAMThe final exam consists 4 small projects. You can choose 2 of them to finish and send meyour report. For each of the small projects you choose, you should perform data analysisusing the data I provide to you and the techniques we disc
编写一个模拟登录接口1、输入用户名密码2、认证成功后显示欢迎信息3、连续输入三次后锁定，下次登录时提示用户锁定效果如下：[root@VM_145_137_centos day1]# python user.py Please enter username:adminPlease enter password:123Please Try enter passwd(1).Pleas
Frequently Asked Question How do I know that my camera has a proper lens? Answer: If you can see exactly the whole display area while connecting the camera to the master PC, then it's a proper lens. In fact, what we mean proper here is that the lens
运行安装mysql 报错 [root@localhost mysql-mult]# ./scripts/mysql_install_db --defaults-file=conf/3306my.cnf FATAL ERROR: please install the following Perl modules before executing ./scripts/mysql_install_db:Data::Dumper 解决方法 ：安装autoconf库 命令：y
