connection the localhost refused

CF768G The Winds of Winter题解

我们考虑暴力咋做,每次得到一个森林之后,必定是从最大的树上摘一棵子树,挪到最小的树上,所以此时的答案为 \(max(siz_{mx}-x,siz_{mn}+x,siz_{次大值} )\),于是发现 \(x=\frac{siz_{mx}-siz_{mn}}{2}\) 时答案最优,所以只需找到这个值的前 ......
题解 Winter Winds 768G 768

[引]Power Automate Use variables and the % notation

Variable manipulation and the % notation - Power Automate | Microsoft Learn 变量操作和 % 表示法 - Power Automate | Microsoft Learn In this articleHardcoded va ......
variables Automate notation Power Use

解决报错: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

这个错误表明 Docker 客户端无法与 Docker 守护程序通信。这可能有几种原因: Docker 守护程序未运行: 您需要确保 Docker 守护程序正在后台运行。可以使用以下命令来启动 Docker 守护程序: sudo service docker start 或者 sudo system ......
daemon docker the connect running

通过tidevice 启动wda 提示: request error: ('Connection aborted.', MuxReplyError(<UsbmuxReplyCode.ConnectionRefused: 3>))

当我在使用tidevice启动wda来做iOS自动化测试的时候一直会报错: request error: ('Connection aborted.', MuxReplyError(<UsbmuxReplyCode.ConnectionRefused: 3>)) 我在网上也一直翻翻翻寻找答案,每一次 ......

POLIR-Int-Generative AI in 2024: The 6 most important consumer tech trends for next year

Generative AI in 2024: The 6 most important consumer tech trends for next year Qualcomm executives reveal key trends in AI, consumer technology and mo ......

致21岁的自己——May all the beauty be blessed.

[错峰跨年第一弹]长文预警,本文长达不知道多少字(本文同时发布于博客园)先说一下,博客园快要倒闭了233说起博客园又得提一嘴他的好朋友csdn,so f**k you csdn,盗我博客不得house每年到这个时候都是最忙的时候,期末周(月)加课设,画图画得焦头烂额,机械工程狗都不学。这一年倒是身体 ......
blessed beauty May all the

CF1761E Make It Connected记录

题目链接:https://codeforces.com/contest/1761/problem/E 题意简述 以邻接矩阵的形式给你一张无向图。你可以执行如下操作: 选定节点 \(u\)。对所有其它节点 \(v\),翻转 \(u\) 与 \(v\) 的连边状态。 给出一种花费操作最少的方案,使图连通 ......
Connected 1761E 1761 Make CF

Spring Security without the WebSecurityConfigurerAdapter

ENGINEERING | ELEFTHERIA STEIN-KOUSATHANA | FEBRUARY 21, 2022 | ... In Spring Security 5.7.0-M2 we deprecated the WebSecurityConfigurerAdapter, as we ......

How to Master the Popular DBSCAN Clustering Algorithm for Machine Learning

Overview DBSCAN clustering is an underrated yet super useful clustering algorithm for unsupervised learning problems Learn how DBSCAN clustering works ......

The 2022 ICPC Asia-East Continent Final Contest (EC-Final 2022)

比赛链接 没做完。 A. Coloring 有 \(n\) 个元素,第 \(i\) 个元素有价值 \(w_i\),颜色 \(c_i\)。给定 \(s\),初始时只有 \(c_s=1\),其余 \(c_i\) 均为 \(0\)。 可以进行任意操作:选择一个 \(1 \le i \le n\),花费 \ ......
Final 2022 Asia-East Continent EC-Final

SP2-0618: Cannot find the Session Identifier. Check PLUSTRACE role is enabled SP2-0611: Error enabling STATISTICS report

报错信息: SP2-0618: Cannot find the Session Identifier. Check PLUSTRACE role is enabledSP2-0611: Error enabling STATISTICS report 说明: Oracle下普通用户缺少set aut ......
Identifier STATISTICS SP2 PLUSTRACE enabling

How to permanently delete a file stored in GIT (both from the local and remote repositories)?

First run git filter-branch -f --index-filter "git rm -rf --cached --ignore-unmatch FOLDERNAME" -- --all Then shrink the .git folder rm -rf .git/refs/ ......

CF1178G The Awesomest Vertex

CF1178G The Awesomest Vertex 给定一棵根为 \(1\) 的有根树,每个节点有两个权值 \(a[i]\) 和 \(b[i]\) 。定义 \(R(v)\) 为 \(v\) 祖先的集合(包括自己),则一个节点 \(v\) 有多棒取决于其真棒程度,真棒程度是这样定义的: \[\l ......
Awesomest Vertex 1178G 1178 The

mysql链接异常,不能使用ip链接解决——null, message from server: "Host 'host.docker.internal' is not allowed to connect to this MySQL server"

情况: 报错翻译:​ 空指针,来自服务器的消息:​"Host ’ Host .docker.internal’​ 不允许连接到 ​MySQL​ 服务器" 登陆mysql 键入命令mysql -uroot -p,回车后提示你输入密码,输入12345,然后回车即可进入到mysql中 选择数据库 use ......
链接 server quot internal message

The 1st Universal Cup. Stage 0: Nanjing (Trial Contest)

比赛链接 题面懒得写了。 A. Stop, Yesterday Please No More 袋鼠移动相当于边界和洞移动。通过模拟可以得出:不考虑洞,移动后剩余袋鼠的矩形。以及假设洞在原点,移动后形成的轨迹形状。 枚举洞在哪个位置,多干掉的袋鼠就是两个几何图形的交。由于洞的移动轨迹较复杂,我们考虑让 ......
Universal Contest Nanjing Stage Trial

Maven-Introduction to the Dependency Mechanism | Maven实战--- dependencies与dependencyManagement的区别

Maven – Introduction to the Dependency Mechanism https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html#:~:text=The de ......

2002 - Can't connect to server on '54.xxx.xxx.xxx' (36)

远程连接mysql数据库的时候显示Can't connect to MySQL server (10060) 如下图所示 可以从以下几个方面入手,找出错误的原因: 1.网络问题 网络不通时会导致这个问题 检查下是不是能ping通 2.mysql账户设置 mysql账户是否不允许远程连接 -- mys ......
xxx 39 connect server 2002

Mysql报错:too many connections原因及解决方法

原因是mysql连接数过多 解决方案一: 1、linux登录mysql: mysql -u root -p; 2、查看mysql允许的最大连接数 show variables like '%max_connections%'; 3、查看这次mysql服务启动到现在,同一时刻最多mysql有多少连接 ......
connections 原因 方法 Mysql many

The 2nd Universal Cup. Stage 3: Binjiang

比赛链接 没做完。 A. Almost Prefix Concatenation 给定字符串 \(S,T\)。称一个串是好的,当且仅当可以通过修改不超过一个字符使其成为 \(T\) 的前缀。 称一个把 \(S\) 划分成 \(n\) 个非空子串 \(S_1,S_2,\cdots,S_n\) 的方案是 ......
Universal Binjiang Stage The 2nd

React项目中报错:Parsing error: The keyword 'import' is reservedeslint

记得更改完配置后,要重启编辑器(如:VSCode)!!! 记得更改完配置后,要重启编辑器(如:VSCode)!!! 记得更改完配置后,要重启编辑器(如:VSCode)!!! 这个错误通常发生在你尝试在一个不支持 ES6 模块语法的环境中使用 import 关键字。 ESLint 默认使用的是 ES5 ......
中报 reservedeslint Parsing keyword 项目

Nacos启动:[NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached

一、表象 二、分析 源码: public HttpRestResult<String> httpPost(String path, Map<String, String> headers, Map<String, String> paramValues, String encode, long re ......

Github Actions - Error: The connection to the server localhost:8080 was refused - did you specify the right host or port?

Run kubectl apply -f eks/aws-auth.yaml kubectl apply -f eks/aws-auth.yaml kubectl apply -f eks/deployment.yaml kubectl apply -f eks/service.yaml shell ......
connection the localhost Actions refused

The Missing Semester of Your CS Education----shell工具和脚本

一.shell脚本 1.$的关键字 $0 - 脚本名 $1 到 $9 - 脚本的参数。 $1 是第一个参数,依此类推。 $@ - 所有参数 $# - 参数个数 $? - 前一个命令的返回值 $$ - 当前脚本的进程识别码 !! - 完整的上一条命令,包括参数。常见应用:当你因为权限不足执行命令失败时 ......
脚本 Education Semester Missing 工具

How can I do to protect the Environmental

How can I do to protect the Environmental Protecting the environment is an important responsibility that we all share. Here are some simple steps you ......
Environmental protect How can the

Why caused the dead factory?

The death of a factory can be caused by various factors, which can be broadly categorized into economic, social, and environmental reasons. Some of th ......
factory caused dead Why the

Should be the workers need to dress uniform for work?

The need for workers to dress in uniforms for work depends on the specific industry, company, and job role. In some cases, uniforms may be required fo ......
workers uniform Should dress need

Why the developed country choose the countries of southeast Asia to build processing factory used their labour force?

The developed countries choose countries in Southeast Asia to build processing factories and utilize their labor force for various reasons. Some of th ......
processing the developed countries southeast

An Introduction to Bioinformatics Algorithms, Neil C. Jones and Pavel Pevzner, the MIT Press, 2004.

An Introduction to Bioinformatics Algorithms, Neil C. Jones and Pavel Pevzner, the MIT Press, 2004. This introductory text offers a clear exposition o ......

B. Preparing for the Contest

原题链接 快速读题 给出一个序列,使其满足\(a[i]>a[i-1],i>1\)成立的次数恰好为k 思路 只要满足条件的序列都算作成立,我们就可以特殊化 先做出一个单增序列,由于前半部分所有元素都满足条件,所以前半部分保留(k+1)个元素,翻转后(n-k-1)个元素 但是sort默认升序,所以我们倒 ......
Preparing Contest for the

error: Your local changes to the following files would be overwritten by merge 解决方案

团队其他成员修改了某文件并已提交入库,你在pull之前修改了本地该文件,等你修改完代码再pull时,这时会报错如下错误 根据是否要保存本地修改,有以下两种解决方案 2.1 保留修改执行以下三条命令 git stash #封存修改 git pull origin master git stash po ......
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