solution p9194 the of
ignore the hidden files in python
import os root = "/Users/Siddhartha/Desktop/py scripts" for item in os.listdir(root): if not item.startswith('.') and os.path.isfile(os.path.join(root ......
what's the difference between const and constexpr in C++?
Both const and constexpr are used to define constants in C++, but they have different meanings and use cases. const is used to declare a variable as c ......
what are the primitive types of C++?
In C++, there are several primitive data types, which are also known as fundamental or built-in data types. These include: Integer types: Used to repr ......
220-You are user number 3 of 50 allowed.
File Transfer Protocol (FTP)ftp220 Welcome to Pure-FTPd [privsep] [TLS] 220-You are user number 3 of 50 allowed.220-Local time is now 22:12. Server po ......
CF1572B Xor of 3
CF1572B Xor of 3 做多了这种题，感觉好套路。。 首先观察操作性质，有一个有解的必要条件：所有值异或和为 $0$，因为每次操作不会改变 $1$ 的个数的奇偶性。然后再观察一下，发现如果从前缀异或和的角度看待这个操作会变得非常简单，大概就是 $$ s_{k-1}, s_k, s_{k+1 ......
关于Could not autowire. No beans of 'xxxx' type found. 解决方法之一
#关于Could not autowire. No beans of 'xxxx' type found. 解决方法之一 原因：启动类与配置类是在一个包下 但是不同包 而且配置类也不是子包 启动类没扫描到配置类 这时候有两种解决方案 第一种需要在Springboot启动类上添加@ComponentS ......
The Witness Set
$\text{Special For The Witness}$ 简介 说实话这个版块是对于$\text{The Witness}$这一游戏的致敬， 只为它给我带来的强烈的思维和视觉的双重冲击，让我体验到什么才真正可以被称作“第九艺术”。 不论是整个游戏的画质还是其中谜题的质感都让我回味无穷， 特别 ......
MECE5397 design of a beam
MECE5397: Assignment 1 - design of a beamDue date: 8:00am on Mar. 21In this assignment, your task is to optimize the cross sectional geometry of a dou ......
File system specific implementation of LookupAndOpen [file] failed
一、问题描述： 某vm开机时，报错:文件系统特定的dOpen [file] 实施无效，无法启动虚拟机；“File system specific implementation of LookupAndOpen [file] failed。” 二、分析处理 1）可能原因： 使用sesparse vmd ......
Could not find a version that satisfies the requirement ModuleName
pip换源 pip使用官方源常见错误Could not find a version that satisfies the requirement ModuleName, 推荐永久修改成豆瓣源. pip config set global.index-url https://pypi.douban. ......
linux系统内存溢出Out of memory
有一台服务器的内存是32g，我在上面跑了一个mysql数据库，后面经常发现mysql隔三差五的就down了，通过查看系统日志发现操作系统OOM了 grep "Out of memory" /var/log/messages 一、OOM是什么？OOM:out of memory，字面意思当然是系统内存 ......
MinIO上传文件The difference between the request time and the server's time is too large.异常
问题 向MinIO上传文件时，抛出异常：The difference between the request time and the server‘s time is too large. 使用date命令修改CentOS时间后，异常依然存在。 相关Linux命令 查看系统时间：date 查看硬件 ......
Using the Spring @RequestMapping Annotation
@RequestMapping is one of the most common annotation used in Spring Web applications. This annotation maps HTTP requests to handler methods of MVC and ......
CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
网上查应该是node导致的内存溢出，64位电脑默认1.4G，32位电脑默认0.7G 在package.json 中的 Scripts 中添加 node 的参数 "scripts": { "serve": "node --max_old_space_size=10240 node_modules/@v ......
使用echarts防止出现“There is a chart instance already initialized on the dom.”的警告
var myChart; function historyMapInit(query_date) { //防止出现“There is a chart instance already initialized on the dom.”的警告 //在使用echarts发现需要及时对新建的myChart实 ......
论文阅读笔记：Descent methods for elastic body simulation on the GPU (源代码及实现细节)
材料来源于 Descent methods for elastic body simulation on the GPU, ACMTransactions on Graphics (TOG), 2016. 0. 概述 在本论文中，提出了一种***。下面将详细介绍该方法的源代码及实现细节，并对照论文中 ......
Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified
最近在写代码时碰到如下错误： java.lang.IllegalArgumentException: com.example.imdemo: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG ......
The command "npm run build" exited with code 1
新环境下，创建了一个Vue.js for VS: 在build时，出现了如标题一样的错误异常。The command "npm run build" exited with code 1。 第一步： npm run build -- --prod 第二步： npm run build --prod ......
how can I use NSubstitute for stub and mock? any difference about the usage?
how can I use NSubstitute for stub and mock? any difference about the usage? NSubstitute is a popular mocking library for .NET that allows you to crea ......
The value of the cell C1 should not be a string value.
Aspose.cells打开文件之后输出为DataTable，是将第一行作为数据类型判断，列具有混合数据集错误代码 var cells = workbook.Worksheets[0].Cells; var detailTable = cells.ExportDataTable(0, 0, cell ......
What's the role of Minipig animal models in drug development?
The development of various human diseases is highly complex. For drug developers to study human pathogenesis and pathological changes and observe and ... ......
论文分享丨Holistic Evaluation of Language Models
摘要：该文为大模型评估方向的综述论文。 本文分享自华为云社区《【论文分享】《Holistic Evaluation of Language Models》》，作者：DevAI。 大模型（LLM）已经成为了大多数语言相关的技术的基石，然而大模型的能力、限制、风险还没有被大家完整地认识。该文为大模型评估 ......
java - idea编译输出缺失导致 The output path is not specified for module XXX - 解决
进入setting设置项，搜索 Java Compiler 添加项目模块后，设置jdk版本，然后确定即可 ......
The 2023 ICPC Asia Hong Kong Regional Programming Contest
The 2023 ICPC Asia Hong Kong Regional Programming Contest A. TreeScript 给你一个根，让你构造一棵树，每个节点被创造的时候必须知道它的父节点的地址和需要寄存器存放当前节点的地址，现在给定你每个节点之间的关系，并且现在根节点已经被创 ......
react+echarts出现“There is a chart instance already initialized on the dom.”
写了一个关于echatrs组件，报错dom重复 配置信息从props拿 let chart; useEffect(() => { if (chart) { updateChartView(); }else{ chart = echarts.init(dom.current) updateChartV ......
xxx required a bean of type ‘java.lang.Integer‘ that could not be found
日志 2022-11-03 13:15:38.189 ERROR 8384 [] [ main] o.s.b.d.LoggingFailureAnalysisReporter 40 : *************************** APPLICATION FAILED TO START * ......
JSON parse error: Cannot deserialize value of type `java.util.Date` from String not a valid representation
日志 Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize value of type `java.util.Date` f ......
Codeforces Round 857 (Div. 2) C-The Very Beautiful Blanket
题目地址 题意：构造一个二维数组，使得任意一个4*4的子矩阵满足： A11⊕A12⊕A21⊕A22=A33⊕A34⊕A43⊕A44 A13⊕A14⊕A23⊕A24=A31⊕A32⊕A41⊕A42 Solution(思路来源：知乎xioachou) 对于4个数来说，任意一个二进制位上的1和0都为偶数， ......
【Python】Jupyter Notebook：IOPub message rate exceeded. The notebook server will temporarily stop sending output to the client in order to avoid crashing it..解决方案
✨报错提示 IOPub message rate exceeded. The notebook server will temporarily stop sending output to the client in order to avoid crashing it. To change thi ......
论文解读（Moco v3）《An Empirical Study of Training Self-Supervised Vision Transformers》
论文信息 论文标题：Improved Baselines with Momentum Contrastive Learning论文作者：Xinlei Chen, Saining Xie, Kaiming He论文来源：2021 ICCV论文地址：download 论文代码：download引用次数： ......