hong kong programming the
Toyota Programming Contest 2023#4（AtCoder Beginner Contest 311）
# Preface 补下好久之前打的比赛博客 这场前面都写的挺稳的，然后一到G就降智了没写出来 # A - First ABC 签到 ```cpp #include #include #include #include #include #include #include #include #inc ......
记录一下Linux下远程访问Mysql连接不上，报错The driver has not received any packets from the server.
# 问题所在 远程服务器已经提前安装好了MySQL，版本也是对应的。在ssh上可以正常进入MySQL数据库。但是其他地方无法连接上，例如navicat和IDE内部都发生报错。 # 排查 ## 1. 首先排查了一下远程服务器上mysql服务状态是否处于正常运行状态 `sudo service mysq ......
Ceil and floor of the dataframe in Pandas Python – Round up and Truncate
In this article, we will discuss getting the ceil and floor values of the Pandas Dataframe. First, Let’s create a dataframe. Example: Python3 # import ......
pip安装error：There was a problem confirming the ssl certificate
``` Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=44 ......
Linux：user is not in the sudoers file. This incident will be reported 解决方法
学习自：user is not in the sudoers file. This incident will be reported 解决方法_一路奔跑94的博客-CSDN博客 1、原因 没有在权限文件中说明该用户具有sudo权限 2、解决步骤 1）以root身份去/etc/sudoers文件中， ......
异常FutureWarning: In the future `np.object` will be defined as the corresponding NumPy scalar.
AttributeError: module 'numpy' has no attribute 'object'. 原因：numpy版本问题，卸载重新安装对应的版本 方法 pip uninstall numpy==1.19.2(根据自己的版本需要，安装对应的版本) 操作如下： ......
[Algorithm] Compare two Binary tree are the same in both value and shape
export default function compare( a: BinaryNode<number> | null, b: BinaryNode<number> | null, ): boolean { if (a null && b null) { return true; } if (a ......
QOJ875 Arrange The Piranhas
题意：大小为 $1 \times n$ 的棋盘上有一些棋子，一次可以选择一个空的位置，将左边第一个棋子往该位置拉一格，右边第一个往这拉一格，操作完这个位置也必须是空的（也就是左右至少得有一格的空隙），问能不能把所有棋子变成目标状态。 将棋子位置的前缀和 $s_i$ 求出，每次操作相当于将一个 $s_ ......
##英语中哪些地名前必须加the？
##英语中哪些地名前必须加the？ 在写作中总是分不清什么时候加the，直到最近看到一篇贴子。https://www.englishcurrent.com/grammar/definite-article-place-names-geography/ 把它翻译总结出来： **1. 大陆前不加the， ......
The Report Viewer Web Control HTTP Handler has not been registered in the application's web.config file. Add
system.webServer 内加 <handlers> <add name="ReportViewerWebControlHandler" preCondition="integratedMode" verb="*" path="Reserved.ReportViewerWebControl. ......
服务器执行hbase shell报错： ipc.AbstractRpcClient: SASL authentication failed. The most likely cause is missing or invalid credentials. Consider 'kinit'.
2023-08-01 21:02:09,923 FATAL [main] ipc.AbstractRpcClient: SASL authentication failed. The most likely cause is missing or invalid credentials. Consi ......
The 10th Shandong Provincial Collegiate Programming Contest
The 10th Shandong Provincial Collegiate Programming Contest K - Happy Equation 思路：a，x的奇偶性相同（因为都对偶数取模），且打表得出a为奇数时，答案为1。（¿） a为偶数时，令 a=t1*2q → ax=t1x*2qx ......
UNIQUE VISION Programming Contest 2023 Summer(AtCoder Beginner Contest 312)
# Preface 最唐氏的一集，尽情欣赏ABC E题战俘的丑态 这场打的时候就很抽象，各种傻逼错误频发，从B题一路WA到G题 还好发现E后面的题更简单后马上把FG写了，不然要爆炸了 # A - Chord 签到 ```cpp #include #include #include #include ......
Removing the remembered login and password list in SQL Server Management Studio
Removing the remembered login and password list in SQL Server Management Studio This works for SQL Server Management Studio v18.0 The file "SqlStudio. ......
关于调用Web API时出现的错误“The underlying connection was closed: An unexpected error occurred on a send”
客户需求，要求调用他们的API来添加，查找，删除数据。 前些时候写了一个测试程序，调用API是OK的，但是今天突然就出现了"The underlying connection was closed: An unexpected error occurred on a send."的错误。当时的第一反 ......
发电站乐队歌词全中译 / The Comprehensive Chinese Translation of Kraftwerk Lyrics
# 发电站乐队歌词全中译 / The Comprehensive Chinese Translation of Kraftwerk Lyrics 发电站所有英文版录音室专辑的歌词中文翻译。《The Mix》和《Minimum-Maximum》为重混（remix）或演唱会专辑，故《Expo 2000》 ......
2023牛客暑期多校5 I The Yakumo Family
# 题意 Ran feels boring at home and wants to propose a math problem with Yukari and Chen! So, here's The Yakumo Family Problem: Given an integer array a ......
JDK 版本异常导致 flutter doctor --android-licenses 出错 (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0
flutter doctor --android-licenses Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" java.lang.U ......
.Net Web API 002 Program和WeatherForecastController
创建工程后，工程主要包含了Program.cs和WeatherForecastController.cs两个代码文件，还有一个WeatherForecast.cs文件，该文件定义的天气情况数据结构替，WeatherForecastController用来组织和返回数据。 1、Program.cs文件 ......
The difference between Chrome and Firefox
The difference about digital certificates. # Firefox See the alarm info. 之Field/Order/Continuity + Dedkind分割
Number Theory: The set of Real实数系构造 实数公理化(R, +, ×, ≥)之Field/Order/Continuity F(域)：定义 +, ×, ≥： +: 加法的 交换律、结合律、0单位元、负元 ×: 乘法的 交换律、结合律、1单位元、逆元、乘法×对加法+的分配 ......
[UNIQUE VISION Programming Contest 2023 Summer(AtCoder Beginner Contest 312) - AtCoder](https://atcoder.jp/contests/abc312)
# [UNIQUE VISION Programming Contest 2023 Summer(AtCoder Beginner Contest 312) - AtCoder](https://atcoder.jp/contests/abc312) ## [A - Chord (atcoder.j ......
Python报错 | ImportError: To be able to use evaluate-metric/seqeval, you need to install the following dependencies['seqeval'] using 'pip install seqeval' for instance'
**报错信息** 使用`metric = evaluate.load("seqeval")`的时候，报如下错误： ```python ImportError: To be able to use evaluate-metric/seqeval, you need to install the fol ......
Angular：error TS2717: Subsequent property declarations must have the same type. Property 'contentRect' mu st be of type 'DOMRectReadOnly', but here has type 'DOMRectReadOnly'.
# 解决方案 在`tsconfig.json`的`compilerOptions`选项中添加如下内容`"skipLibCheck": true`。 如下图所示 $。\ 目前是全`OJ`最优解，跑到了`79ms`。 `update 2023.07.29` 完工，期望无bug（暑假快乐吖o(*￣▽￣*)ブ）\ `update 2023.07.27` ~~（要原题检测了，先占个坑，有时间再补）~~ ## 原题大意 [P3095 [ ......
[LeetCode] 486. Predict the Winner
You are given an integer array nums. Two players are playing a game with this array: player 1 and player 2. Player 1 and player 2 take turns, with pla ......
not_the_same_3dsctf_2016
## 0X01 和get_started_3dsctf_2016类似  ![](https://picx.zhimg.com/80/v2-954011 ......
The Final —— NOI2023
终于到这一天了。 ## Day 0 试机的时候讲了有 SelfEval 这个东西，很好啊！CCF 终于愿意改善一点选手参赛体验了。 笔试 AK 了。 非常相信日报“不必担心睡不着，因为国赛不可能使人睡着”，似乎睡的还可以？ ## Day 1 进场看题。 T1 不是扫描线板子吗？斜线就爆枚一下就行，比 ......
.NET Core|--SkiaSharp 生成图像报错|--The type initializer for 'SkiaSharp.SKAbstractManagedStream' threw an exception.
### 前言 ```bash #SkiaSharp - 版本 2.88.3 #SkiaSharp.NativeAssets.Linux.NoDependencies - 版本 2.88.3 #部署服务器环境 Linux / docker / #Visual Studio 版本 Microsoft V ......