the

P6545 [CEOI2014] The Wall 总结记录--zhengjun

[link](https://www.luogu.com.cn/problem/P6545) 思维好题。 - 找到结论,即包住所有点的充要条件 两次最短路的思想确实很妙。 > 结论:找到 $(0,0)$ 到每个标记方格左上角的最短路,那么一定存在包住这些路径的最优解。 证明考虑反证,比较好证的。 # ......
zhengjun P6545 6545 2014 CEOI

CentOS grub引导损坏 Minimal BASH-like line editing is supported.For the first word.TAB lists possible command completions.Anywhere else TAB lists possible deyice or file completions.

这是 GRUB boot loader 的命令行提示。它可能出现在以下情况中: 系统没有正确引导 启动项配置不正确 硬盘分区有问题 GRUB 配置有误等 为了解决这个问题,你需要做的是恢复 GRUB。以下是一般步骤,适用于大多数 Linux 发行版(如 Ubuntu): 启动 Live CD - 首 ......
completions possible lists BASH-like TAB

[LeetCode] 2024. Maximize the Confusion of an Exam

A teacher is writing a test with n true/false questions, with 'T' denoting true and 'F' denoting false. He wants to confuse the students by maximizing ......
Confusion LeetCode Maximize 2024 Exam

this version of the Java Runtime only recognizes class file versions up to 55.0

问题: 运行SpringBoot demo时报错: this version of the Java Runtime only recognizes class file versions up to 55.0 at 原因: 编译版本和运行版本不一致,具体原因是编译版本高于运行版本,SpringBo ......
recognizes versions Runtime version class

How To Fix the ERR_OSSL_EVP_UNSUPPORTED Error in Node.js

Fix the ERR_OSSL_EVP_UNSUPPORTED Error There are two ways to fix the ERR_OSSL_EVP_UNSUPPORTED error: Upgrade Node.js by downloading and installing the ......

打印机出现slide the green tab on drum unit

以兄弟MFC-7380打印机为例,相信很多使用耗材伙伴们在兄弟品牌打印机遇过这种情况:打印机屏幕出现“硒鼓!滑动硒鼓单元上的绿色滑块”字眼。 为什么会出现“硒鼓!滑动硒鼓单元上的绿色滑块”的提示?意味着要清洁鼓架上的电晕丝,按照图示来回滑动几次绿色滑块,把电晕丝上的灰尘清理掉。 (注:来回滑动几次将 ......
打印机 slide green drum unit

在idea/webstorm等terminal运行命令报错:Command rejected by the operating system没有权限【已解决】

在idea/webstorm等编译器terminal窗口运行命令报错:Command rejected by the operating system没有权限,Command rejected by the operating system ......
operating webstorm terminal rejected 命令

[LeetCode] 2600. K Items With the Maximum Sum

There is a bag that consists of items, each item has a number 1, 0, or -1 written on it. You are given four non-negative integers numOnes, numZeros, n ......
LeetCode Maximum Items 2600 With

【Azure App Service for Windows】 PHP应用出现500 : The page cannot be displayed because an internal server error has occurred. 错误

[500 The page cannot be displayed because an internal server error has occurred.] [scriptProcessor could not be found in "fastCGI" application config... ......
displayed internal occurred 错误 Service

Lord Of The Root: 1.0.1实战

##**前言** Description:我创建这台机器是为了帮助其他人学习一些基本的CTF黑客策略和一些工具。我瞄准了这台机器,使其在难度上与我在OSCP上破解的机器非常相似。 这是一个引导到根计算机将不需要任何来宾交互。 有两种设计的权限提升方法。 ##**靶机环境** kali 192.168 ......
实战 Lord Root The Of

Can't import the named export XXXX from non EcmaScript module (only default export is available)的解决方法

# 解决方法: 1. https://stackoverflow.com/questions/69343038/cant-import-the-named-export-xxxx-from-non-ecmascript-module-only-default-expo 2. https://gith ......
export EcmaScript available default 方法

Cannot create a component of type 'ahb_mst_burst_incr' because it is not registered with the factory

运行VCS仿真报错: Cannot create a component of type 'ahb_mst_burst_incr' because it is not registered with the factory 但是我在test class中已经注册了,为什么还报错呢? 报错就说明没有找 ......

webclient download file The remote server returned an error: (403) Forbidden,

class WebpWebClient:WebClient { protected override WebRequest GetWebRequest(Uri address) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create( ......
webclient Forbidden download returned remote

POJ 3728 The merchant

题意好像不清楚: > 给定一棵 $n​$ 个点的树,每个点有点权 $val_i​$,现在有 $q​$ 个询问,每次询问给出 $u,v​$,设 $u​$ 到 $v​$ 的路径上的点编号为 $a_1,a_2\cdots a_{len}​$,求 $\max\limits_{1 \le x #include ......
merchant 3728 POJ The

javax.net.ssl.SSLHandshakeException: The server selected protocol version TLS10……

问题: 报错:javax.net.ssl.SSLHandshakeException: The server selected protocol version TLS10 is not accepted by client preferences [TLS12] 解决方式: 1、修改%JAVA_H ......

Meet in the middle

我们都知道搜索是非常常用的一个东西,我们在解决不了问题的时候就会选择他来暴力寻找最优解。 一般的暴力的复杂度都是指数级,比如常见的 01 背包,复杂度就是 $O(2^{n})$,而如果我们用了 meet in the middle,就可以让我们的时间复杂度降到 $O(2^{\frac{n}{2}}) ......
middle Meet the in

org.apache.spark.shuffle.FetchFailedException: The relative remote executor(Id: 21), which maintains the block data to fetch is dead.

# 问题描述 org.apache.spark.shuffle.FetchFailedException: The relative remote executor(Id: 21), which maintains the block data to fetch is dead. 最近在做Spark ......

cenos7安装mysql报错:The GPG keys listed for the "MySQL 8.0 Community Server"

rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022 执行以上语句后,重新执行安装语句即可。 yum install mysql-community-server ......
quot Community cenos7 Server listed

npm install 报错 npm ERR! gyp verb check python checking for Python executable "python2.7.15" in the PATH

今天新启动一个项目,在 npm install 安装依赖项时出现报错。 $ npm install > husky@0.14.3 install D:\programs\rubik-web\node_modules\husky > node ./bin/install.js husky settin ......
python quot executable npm checking

Could not fetch URL https://pypi.org/simple/keras-bert/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443):

pip下载包的时候报错 Could not fetch URL https://pypi.org/simple/keras-bert/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pyp ......

carefree茄哩啡 和 make the moment better

carefree, 无忧无虑的,就是龙套人员喽,什么都无所谓,没有respsonsiblity什么都不在乎,中心的人不抱怨,抱怨的人不在中心。 每时每刻都有很多flow 穿过你,你要经历无数的flow,因为你的存在,你要来把这个flow变得更好,这就是你的影响力impact. ......
carefree better moment make the

The Summer Holiday Trip

打算在此记录自己的暑假生活。 ### 6.29 放假啦 ~~其实几天前就放了,但忘记写了...~~,期末考的还不错,$296.5$的样子(GD小六)。\ 初中是个还不错的学校,要住宿。不过学校很大,设施很新,唯一不好的就是见不到小学同学了qwq...\ 当即便刷了几道莫队来泄泄愤。\ 刷了几道思维题 ......
Holiday Summer Trip The

UDPG and Lung Cancer Metastasis: Unraveling the Relationship

Lung cancer is one of the malignant tumors with fast-growing morbidity and mortality and the worst prognosis. The development of molecular biology and... ......

【转】python踩坑(FileNotFoundError: Could not find module '此处省略了一些路径win_amd64.dll' (or one of its dependencies). Try using the full path with constructor syntax.)

1、报错 (FileNotFoundError: Could not find module '此处省略了一些路径\site-packages\scipy\.libs\libbanded5x.GL5FZ7Y77HIKQFNMZKUOMV5GID6YMX2V.gfortran-win_amd64.dl ......

在Vscode使用命令npm报错-The operation was rejected by your operating system. npm ERR! It's possible that the file was already in use (by a text editor or antivirus)

##报错信息: PS D:\disk\xubo\个人博客文章\27-Vue\资料(含课件)\vuedemo\vueproject> npm i pubsub-js npm ERR! code EPERM npm ERR! syscall open npm ERR! path D:\disk\soft ......
npm antivirus operation operating was

【每日一题】Problem 289B. Polo the Penguin and Matrix

[原题](https://codeforces.com/problemset/problem/289/B) #### 解决思路 1. 题目要求将所有元素通过 **+-** 的方式变成同一个元素 $e$,那么就需要找到一个点,计算小于(或大于)$e$ 的所有点所需变化总次数 2. 因此可以将二维数组转 ......
Problem Penguin Matrix Polo 289

E:[IU] : Failed to open the configuration file! Exiting...

This is outside Qt's scope, the message is not printed by Qt. From the linked discussion it would seem that the message is output by the Intel graphic ......
configuration Exiting Failed open file

What does the term epoch mean? Why it is so important?

在人工智能中,"epoch"(中文称为"训练轮次"或"周期")是指训练神经网络时将整个训练数据集通过神经网络进行一次正向传播和反向传播的过程。 每个"epoch"包含一次前向传播和一次后向传播,用于更新神经网络的参数。在每个"epoch"中,神经网络对整个训练数据集进行一次学习和优化,以逐渐提高模型 ......
important epoch What does term

智能计算理论:Please write down the procedure of PSO algorithm.

粒子群优化(Particle Swarm Optimization,PSO)算法是一种基于种群的优化算法,灵感来源于鸟群或鱼群的社会行为。下面是PSO算法的一般过程: 初始化粒子群:创建一个粒子群,其中每个粒子表示问题的一个潜在解。在搜索空间内随机初始化粒子的位置和速度。 评估适应度:根据每个粒子的 ......
algorithm procedure 理论 智能 Please

【题解】#373. 「USACO1.1」Friday the Thirteenth 题解(2023-07-01更新)

# #373. 「USACO1.1」Friday the Thirteenth 题解 ## **[题目传送门](https://qoj.fzoi.top/problem/373)** **欢迎大家指出错误并联系这个蒟蒻** ## 更新日志 - **2023-02-01 17:20 文章完成** - ......
题解 Thirteenth USACO1 Friday USACO