hong kong programming the

HHKB Programming Contest 2023(AtCoder Beginner Contest 327)

HHKB Programming Contest 2023(AtCoder Beginner Contest 327) A. ab 解题思路: 模拟即可。 代码: #include <bits/stdc++.h> using namespace std; using ll = long long; ......
Contest Programming Beginner AtCoder HHKB

"Grain for Green" program: turn sand into green

"Grain for Green" program: turn sand into green One specific measure that has been effective in tackling desertification is the "Grain for Green" prog ......
quot program Grain Green green

e1000e 0000:00:1f.6: The NVM Checksum Is Not Valid

Ubuntu20.04系统,遇到 I219 网卡不能用的问题,查看dmesg得到如下信息: 解决办法: 1. 下载Intel官方工具Boot Utility: 下载地址:https://www.intel.com/content/www/us/en/download/15755/intel-ethe ......
Checksum e1000e e1000 1000e Valid

prometheus Error on ingesting samples that are too old or a re too far into the future

目录prometheus Error on ingesting samples that are too old or a re too far into the future磁盘问题时间问题版本问题历史prometheus旧数据 prometheus Error on ingesting samp ......
prometheus ingesting too samples future

The sultion of P4959

problem & blog 首先我们看到 \(x,y\) 有可能为负数,所以我们先把它旋转到第一象限。 然后我们发现如果 \(x_a \ge x_b\) 且 \(y_a \ge y_b\) 那么 \(b\) 点就是无效的,应为他肯定可以被以左下角为 \((0,0)\),右上角为 \((x_a,y_ ......
sultion P4959 4959 The of

"none" is not exported by the List::Util module

001、make命令报错如下: "none" is not exported by the List::Util module 002、解决方法 。 ......
quot exported module none List

[935] Python Programming in QGIS3

ref: Getting Started With Python Programming (QGIS3) ref: 1.4.1. Using PyQGIS in standalone scripts ......
Programming Python QGIS3 QGIS 935

[934] Run the python file directly (ArcGIS Pro)

ref: The Edit with IDLE and Run with ArcGIS Pro options are not available in the context menu when right-clicking Python files Description In some ins ......
directly ArcGIS python file 934

【Azure Web Job】Azure Web Job执行Powershell脚本报错 The term 'Select-AzContext' is not recognized as the name

问题描述 Azure Web Job执行Powershell脚本报错 Select-AzContext : The term 'Select-AzContext' is not recognized as the name of a cmdlet, function, script file, or ......

nginx报错 [error] 612#4188: CreateFile() "C:\yjzx\nginx-1.24.0/logs/nginx.pid" failed (2: The system cannot find the file specified)

背景 无论是nginx -s stop还是nginx -s reload命令,都会出现这个错误。 [error] 612#4188: CreateFile() "C:\yjzx\nginx-1.24.0/logs/nginx.pid" failed (2: The system cannot fin ......
nginx quot CreateFile specified cannot

The Last Battle —— 2023~2024 赛季考场代码合辑

\[\Huge\mathfrak{CSP - S 2023} \]\(\textrm{A}\;\text{密码锁}\) \({\color{limegreen}\textrm{100}}\textrm{ / 100}\) \(\textrm{We decide.}\) \(\textrm{We ch ......
考场 赛季 代码 Battle Last

The Parade

here 二分的单调性:如果\(mid\)可以,那么小于\(mid\)的也一定可以(从每排末尾剔除一些人即可)。 主要问题是贪心的选法。 原问题所引出的可能得选人的方案可能是离散的,比如: 2 2 5 当每排人数是2时,一下方案是一种最优解: 1个身高为1的,1个身高为2的 1个身高为1的,1个身高 ......
Parade The

NIT GREAT NITYACKE DESTROYS THE UNIVERSE

线段树 一般线段树维护的东西是什么?设其维护的信息的半群 \((A,+)\),维护标记的半群 \((T,\times)\) 和一种运算 \(*\mapsto A*T\to A\)。 要求 \((b+c)*a=b*a+c*a\)。 一般而言,矩阵是满足这东西的最一般东西,所以线段树一定可以用矩阵搞。 ......
DESTROYS NITYACKE UNIVERSE GREAT NIT

[933] In ArcPy, how to get the geometry of a feature from a shapefile

In ArcPy, you can get the geometry of a feature from a shapefile using the SearchCursor or UpdateCursor and the SHAPE@ token to access the geometry of ......
shapefile geometry feature ArcPy from

[932] In ArcPy, how to get the extent of a shapefile

In ArcPy, you can get the extent of a shapefile using the Describe function and the extent property. Here's how you can do it: import arcpy # Set the ......
shapefile extent ArcPy 932 how

PageOffice保存时The file format is not allowed

情景描述:最新用PageOffice做word在线编辑功能,但是保存时一直报错The file format is not allowed。如下图: 问题分析:把word文件放到官方demo中,编辑保存没有问题,最后排查到是pageofficeCtrl.WebOpen传入的参数DocumentURL ......
PageOffice allowed format file The

【图形学笔记】Lectre11-The Rendering Equation-渲染方程

Lectre11-The Rendering Equation-渲染方程 目录Lectre11-The Rendering Equation-渲染方程Models of Scattering 散射模型表面散射——BRDF(双向反射分布函数)一个点上的反射镜面反射Transmission 传播(似乎是 ......
方程 Rendering Equation 图形 笔记

【算法笔记】动态规划Dynamic Programming

参考视频:5 Simple Steps for Solving Dynamic Programming Problems 引子:最长递增子串(Longest Increasing Subsequence,LIS) LIS([3 1 8 2 5]) = len([1 2 5]) = 3 LIS([5 ......
算法 Programming Dynamic 笔记 动态

Python:重装Python后,在pycharm运行报错——Cannot run program "C:\Users\*****\Python36\python.exe" (in directory "E:\www\python_tony\spider"): CreateProcess error=2, 系统找不到指定的文件。

电脑重装Python后,重新打开Pycharm执行python,发现报错:Cannot run program "C:\Users\***\Python36\python.exe" (in directory "E:\www\python_tony\spider"): CreateProcess e ......
quot Python python CreateProcess python_tony

[Violation] Added non-passive event listener to a scroll-blocking <some> event. Consider marking event handler as 'passive' to make the page more responsive.

https://stackoverflow.com/questions/39152877/consider-marking-event-handler-as-passive-to-make-the-page-more-responsive Passive event listeners:https: ......

后台springboot启动失败-The bean 'productMapper' could not be injected because it is a JDK dynamic proxy

报错信息 The bean 'productMapper' could not be injected because it is a JDK dynamic proxy The bean is of type 'com.sun.proxy.$Proxy224' and implements: pw ......

NOMURA Programming Competition 2020 D Urban Planning

考虑排列 \(P_i\) 已经固定了的情况,那么连边 \(i\to P_i\) 形成有向图 \(G\),最小连边数就是 \(N\) 减去弱连通块数。善良的出题人已经告诉你连边方案就是 \((N-1)^K\),所以答案就是 \(N(N-1)^K\) 减去所有连边方案中弱连通块数量总和。于是只需要考虑所 ......

The 2023 CCPC Guilin 游记

Preface 纯在偷懒,比赛结束过了这么多天才把这篇游记摸出来 这场CCPC桂林算是我们全队第一次线下打区域赛,虽然赛前VP往年CCPC时偶尔也能打进金牌区(一般都是徐神切出字符串或是祁神切掉计算几何时) 但鉴于没啥经验而且这场桂林强队如云,因此心理预期能守银就算成功 最后的结果也算是中规中矩地完 ......
游记 Guilin 2023 CCPC The

容器报错 Error response from daemon: driver failed programming external connectivity on endpoint

在启动容器时的容器时,会出现报错:Error response from daemon: driver failed programming external connectivity on endpoint XXX(端口映射或启动容器时报错) 如下: 原因:在我们启动了Docker后,我们再对防火 ......

Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!

安装Redis,执行 install_server.s 脚本时,出现如下报错: 解决方案,注释掉 install_server.sh 中的部分代码,注释代码详情如下: 再次执行 install_server.sh 脚本,结果如下: ......
and directory provided example install

Mind the Gap 队伍实录

正式比赛 \(**Year2023**\) \(ICPC Nanjing:\)未开始 \(CCPC Shenzhen:\)未开始 \(ICPC Jinan:\)未开始 交题圣经 " 语言别交错 题目别交错 long long 有没有开 空间够不够 大小够不够 自己的样例试过没 格式'\n'有没有 板 ......
队伍 Mind Gap the

题解 ABC326E【Revenge of "The Salary of AtCoder Inc."】

根据期望的线性性,总工资的期望等于在每一个 \(i\) 处获得的工资的期望之和,而在 \(i\) 处获得的工资的期望 \(E(i)=A_i\times p(i)\),其中 \(p(i)\) 表示掷骰子掷到 \(i\) 且有效的概率。 初始 \(p(0)=1\),则只有从 \(0\sim i-1\) ......
题解 quot Revenge AtCoder Salary

redis cluster 多节点部署时出现Waiting for the cluster to join

如图显示一直卡在这里: 可能由一下几种情况 1、redis.conf 中的bind 配置问题 可能配置有问题限制的访问redis ,通常设置为本机IP ,或者可以设置为 0.0.0.0 进行测试 2、可能是集群总线端口未开放 若通讯端口为6379,那么集群总线端口16379一定要打开 3、clust ......
cluster 节点 Waiting redis join

[Compose] Concurrency + Channel and Reactive programming for JS

Concurrency + Channel (CSP): Concurrency is a way to run operation in isolated thread, a way to better utilize the CPU resources and handle multi simu ......

AT_abc326_e Revenge of "The Salary of AtCoder Inc." 题解

AT_abc326_e Revenge of "The Salary of AtCoder Inc." 题解 一道简单的概率论+动态规划题目(然而我赛时没看这道题 题意 有一个长度为 \(n\) 的序列 \(A\)、一个 \(n\) 面骰子,掷若干次骰子,如果这一次掷骰子的点数小于等于上一次的点数, ......
题解 quot Revenge AtCoder AT_abc