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hdu:surrounding the trees（凸包）
Problem Description There are a lot of trees in an area. A peasant wants to buy a rope to surround all these trees. So at first he must know the minim ......
[Typescript] ts-toolbelt F.Narrow preserve the exactly data for function arguement
Example code: interface Fruit { name: string; price: number; } export const wrapFruit = <TFruits extends Fruit[]>(fruits: TFruits) => { const getFruit ......
The 2022 ICPC Asia Nanjing Regional Contest
写了题解没写代码的：BDGHK A 题解 先求出没有洞的话，最终留下来的袋鼠是哪个矩形。再看洞相对袋鼠是怎么移动的，这个洞会留下来一个移动轨迹。check 一个点是不是答案，就是看这个移动轨迹和袋鼠矩形的交的大小。那么每次是对移动轨迹进行一个二维数点。移动轨迹坐标必须在 $[-n,n]$ 和 $[- ......
E325: ATTENTION Found a swap file by the name "/etc/ssh/.sshd_config.swp"
今天使用vim /etc/ssh/.sshd_config命令报下面这个错误 查询后发现是上次修改内容没有保存，意外退出造成的，生成了一个.swp文件。我按了一下回车就回到编辑页面了，没有保存上次的编辑。其他解决方法还原上次编辑结果，使用命令vim -r 文件名 命令恢复上次编辑结果，使用 rm - ......
Luogu P2973 [USACO10HOL]Driving Out the Piggies G
发现答案其实与这个点炸弹经过的次数有关，因为只要知道了这个点炸弹经过次数 $w$，这个点答案就能算出：$w\times \frac{p}{q}$ 就想到设 $f_u$ 为 $u$ 点炸弹经过次数 $u$ 点经过次数便可以由有连边的 $v$ 点推来，要满足 $v$ 点此时炸弹没爆炸且 $deg_v$ ......
IDEA报错：Unsupported characters for the charset 'ISO-8859-1'
IDEA报错：Unsupported characters for the charset 'ISO-8859-1' 解决方法 File->Settings->Editor->File Encodings 将Properties Files (*.properties)下的Default encod ......
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple ERROR: Could not find a version that satisfies the requirement mediapipe (from versions: none) ERROR: No matching distribution found f
命令行输入： pip install mediapipe 报错： Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple ERROR: Could not find a version that satisfies the requi ......
Elasticsearch专题精讲——Installing Elasticsearch ——Install ECK using the Helm chart
Install ECK using the Helm chart Starting from ECK 1.3.0, a Helm chart is available to install ECK. It is available from the Elastic Helm repository a ......
The Org2Blog Project README.org
About {#about id="org_gcr_2019-03-06T17-15-24-06-00_cosmicality:B5FB31EA-EA25-4675-90B0-AE0167BAE092"} Blog from Org mode to WordPress. Table of Conte ......
The GitHub Project xm-rpc-el/xml-rpc-el README.org
Commentary: This is an XML-RPC client implementation in elisp, capable of both synchronous and asynchronous method calls (using the url package's asyn ......
Tool-CMake-How CMake simplifies the build process by Bruno Abinader
Tool-CMake-How CMake simplifies the build process by Bruno Abinader https://gitlab.kitware.com/cmake/community/-/wikis/home https://brunoabinader.gith ......
Cheems. Would you like going to the dock later to order some French fries?
Prologue " So, where are we going? " " I'm going to the dock later to order some French fries. " " No, you misunderstood... I mean, what is the ultima ......
4、题目：Creativity in Electrical Engineering Degree Programs: Where Is the Content?
期刊信息 （1）作者：Adams，Scott （2）期刊：IEEE Transactions on Education, 2019/11, 62-4: 288-296 （3）DOI：10.1109/TE.2019.2912834 （4）ISSN：0018-9359 （5）IF：2.74 (Q2) 研 ......
2、题目：The Informed Design Teaching and Learning Matrix
期刊信息 （1）作者：Crismond, David P. （2）期刊：Journal of Engineering Education, 2012, 101(4): 738–797 （3）DOI：10.1002/j.2168-9830.2012.tb01127.x （4）ISSN：10694730 ......
解决 ERROR:Docker Got permission denied while trying to connect to the Docker daemon socket at unix
解决 ERROR:Docker Got permission denied while trying to connect to the Docker daemon socket at unix 在终端执行"docker version"命令，出现如下报错： ”Got permission deni ......
【解决】axios 下载文件 Failed to read the 'responseText' property from 'XMLHttpRequest'
主要解决以下两个问题 问题一：idm一些网站不允许请求同一文件两次 故障原因：IDM 在发神经 因为它检测到浏览器集成插件未安装，所以诱导你安装。实际上，装了插件问题也会出现。改参数都没用。 1.很可能是你点击网页的 下载链接 有问题（换个网页下载试试，就不提示了），Edge 浏览器一直会欺骗你， ......
Could not create the Java virtual machine解决
Could not create the Java virtual machine解决 原文链接：https://blog.csdn.net/weixin_42031680/article/details/118652127 Could not create the Java virtual mac ......
The principle of uploading files with command line tools All In One
The principle of uploading files with command line tools All In One 命令行工具文件上传的原理 / The principle of command line tool file upload demos pip git CDN OS ......
Experience Lightning-Fast Wi-Fi Connectivity with the QCN9024: The Ultimate Solution for Dense Environments
The QCN9024 is the latest addition to the Qualcomm Networking Pro Series platform for Wi-Fi 6E access points. Designed to support high-performance, lo ......
The 2021 CCPC Weihai Onsite
C 挺有意思的题，但要在场上切难度还是挺大的（和前十题不在一个档次） 转成原根后变成模意义下的01背包（原本考虑了一下转生成函数，但是得保留$np$位，显然不靠谱；而bitset优化暴力又过不去）。 发现做这个背包的过程是或运算，也就是说有用的操作只会把某些0变成1，那么自然地会想到：每次用$Pol ......
Tablespace 'innodb_system' Page [page id: space=0, page number=5] log sequence number 2243306228 is in the future! Current system log sequence number 2243305813.
场景： 这几天在外面实习，老师的项目数据库崩了让我看，连着两条看到十一二点，哎。 主要场景是mysql突然崩溃，发现重启mysqld服务无效，重启系统无效。查看/var/log/mysql.log日志，看到以下内容： The manual page at http://dev.mysql.com/d ......
User installations are disabled via policy on the machine. 安装python
User installations are disabled via policy on the machine. 解决办法 1、在运行里输入gpedit.msc;（group policy)组策略 2、计算机配置管理>>管理模板>>windows组件>>windows Installer>>禁止 ......
Quartus Prime-can't launch the ModelSim software 的解决办法
19.1 版本的Quartus Prime Lite版本，安装了免费版的modelsim， 已经设置了modelsim 的 路径： 但是还是提示： 打开Setting这里 设置选中Modelsim-Altera 就可以了： ......
[INS-42017] The Grid home is inconsistent on the following nodes: [11grac2]
1、一套11.2.0.4 RAC的测试环境，集群被捣鼓坏了，打算deconfig后，运行config.sh脚本重新配置集群。 2、运行config.sh脚本，在检测环境时，遇到如下故障： [INS-42017] The Grid home is inconsistent on the followi ......
Codeforces Round 866 (Div. 1) C. The Fox and the Complete Tree Traversal （构造）
传送门 题目大意： ** 给定一个有n个点的树，我们可以任意选择一个点作为起点，这个点可以跳到跟自己距离为1或者距离为2的点，已经到达的点不能再到达（最终必须回到起点），询问是否存在一种方案可以从一个点出发经过所有的点最终再回到这个点来。** ** 输入一个整数n。紧接着输入n-1条边。** 大致思 ......
Introducing the QCN9074: A Revolutionary New Chip for the Internet of Things
The QCN9074 is a high-performance chip designed to meet the demanding needs of the Internet of Things (IoT) market. With its powerful processing capab ......
CF1699A The Third Three Number Problem
###题意简述 构造出一个三元组a,b,c使得(a ⊕ b)+(a ⊕ c)+(b ⊕ c) = n,若无解输出-1。 符号 ⊕ 的意思为异或 ###个人分析 首先要了解异或符号的性质： 1,x⊕0=x 2,x⊕x=x 根据异或符号的性质可以得到一下构造： a=b=0,c=n/2 c=0,a=b=n ......
How to get Linux kernel Information using the command line All In One
How to get Linux kernel Information using the command line All In One
如何使用命令行获取 Linux 内核信息
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JPG 100 vs JPG 20: What’s The Difference?
JPG 100 vs JPG 20: What’s The Difference? So you’re into photography and while you’re showing some skill and getting a handle on camera settings for t ......
As a restaurant owner, write a professional email to the supplier to get these products every week: - Wine (x10) - Eggs (x24) - Bread (x12)
As a restaurant owner, write a professional email to the supplier to get these products every week: Wine (x10) Eggs (x24) Bread (x12) Dear Supplier, I ......