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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 ......
[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 ......
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 ......
Git- Fatal: cannot do a partial commit during a merge
在提交单个文件的时候出现这个错误. 意思是不能部分提交代码. 原因是git认为你有部分代码没有做好提交的准备, 比如没有添加 解决方法是 1. 提交全部 git commit -a 2. 如果不想提交全部,那么可以通过添加 -i 选项 git commit file/to/path -i -m me ......
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 ......
解决Authentication plugin ‘caching_sha2_password‘ cannot be loaded问题
感谢,参考文章:https://blog.csdn.net/qq_46059247/article/details/125333706 报错原因 用图形化用户界面连接的MySQL8.0时, 报错信息:Authentication plugin ‘caching_sha2_password’ cann ......
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 \ ......
React 项目启动在 chrome 上报错 之 Uncaught TypeError: Cannot read property ‘forEach‘ of undefined
chrome上报错如下: 原因:安装React Developer Tools导致的,关闭这个插件就行 ......
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 ......
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 ......
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 ......
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 ......
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 ......
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 ......
Cannot install in Homebrew on ARM processor in Intel default prefix (/usr/local)!
一、现象 二、思路 下载两个版本的Homebrew并存 三、解决 brew bundle dump 下载homebrew,参考Mac装机软件 vi ~/.zshrc 添加 export PATH=/opt/homebrew/bin:$PATH source使配置生效 ......
Nacos启动:[NACOS HTTP-POST] The maximum number of tolerable server reconnection errors has been reached
一、表象 二、分析 源码: public HttpRestResult<String> httpPost(String path, Map<String, String> headers, Map<String, String> paramValues, String encode, long re ......
Github Actions - Error: The connection to the server localhost:8080 was refused - did you specify the right host or port?
Run kubectl apply -f eks/aws-auth.yaml kubectl apply -f eks/aws-auth.yaml kubectl apply -f eks/deployment.yaml kubectl apply -f eks/service.yaml shell ......
The Missing Semester of Your CS Education----shell工具和脚本
一.shell脚本 1.$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 ......
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 ......
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 ......
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 ......
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 ......
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 ......
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 ......