technique adjoint 2019 the

P5321 [BJOI2019] 送别 题解--zhengjun

由于大家的做法需要大量分类讨论和代码量,这里提供一种不怎么分类的,容易实现的做法。 首先,由于墙体会随时变化,所以直接对墙体本身维护不是很方便。 我们可以牺牲一点常数,对 \((i,j)\) 建立四个点 \(UL_{i,j},UR_{i,j},DL_{i,j},DR_{i,j}\) 分别表示 \(( ......
题解 zhengjun P5321 5321 2019

[GXYCTF2019]BabySQli

[GXYCTF2019]BabySQli 打开是一个登录页面 任意输入账号密码提示wrong user 输入admin提示wrong pass,说明有admin的账号 并且在页面源代码中发现一串经过编码后的字符串 经过base32和base64解码后得到SQL语句 使用万能密码进行尝试,得到do n ......
BabySQli GXYCTF 2019

AtCoder World Tour 2022 B The Greatest Two

原题面:https://atcoder.jp/contests/wtf22-day2/tasks/wtf22_day2_b 题面翻译: 一个长度为 \(n\) 的排列 \(p\),每次可以把一个长 \(k\) 区间的最大与次大值交换,问操作任意次数后可以得到的排列数量对 \(998244353\) ......
Greatest AtCoder World 2022 Tour

Introducing the incident management

Forward Today, we talk about the significance of incident management. Firstly, we start it by some simple concepts. What exactly the incident is? Or w ......
Introducing management incident the

[Keyence2019] Paper Cutting

Paper Cutting Luogu AT_keyence2019_f 题面翻译 有一个 \((H+1)\times(W+1)\) 的网格,网格中有 \(H\) 条水平线和 \(W\) 条竖直线。 你需要执行 \(K\) 次操作,每次沿一条水平线或竖直线将网格切开。定义一次操作的权值为切割后网格被 ......
Keyence Cutting Paper 2019

A connection was successfully established with the server but then an error

在使用EFCore生成数据库的时候,报上面的错误! 解决方法: 加(Encrypt=True;TrustServerCertificate=True;)即可: "ConnectionStrings": { "DefaultConnection": "Data Source=LAPTOP;Initia ......

Windows Server 2016 & 2019 工作站速配脚本

之前有一篇关于把Windows Server打造成工作站系统的[随笔],其中的步骤完全基于手工操作,恐怕部分对系统不熟悉的朋友会找不到设置的入口。与其弄一堆截图写所谓的教程,还不如写一个程序来自动化处理。 init.ps1 Write-Host "`n正在启用声音服务" Set-Service -N ......
速配 工作站 脚本 Windows Server

An improved LSTM-based model for identifying high working intensity load segments of the tractor load spectrum

一区top Computers and Electronics in Agriculture 题目: “基于改进 lstm 的拖拉机载荷谱高工作强度载荷段识别模型” (pdf) “An improved LSTM-based model for identifying high working in ......

web项目启动时dubbo报错: No provider available for the service com.davidhu.shopguide.api.service.UserEventService from the url zookeeper ://localhost:2181/org.apache.du

Caused by: java.lang.IllegalStateException: Failed to check the status of the service com.davidhu.shopguide.api.service.UserEventService. No provider ......

初中英语优秀范文100篇-056I have the courage to accept the challenge-我有勇气接受挑战

PDF格式公众号回复关键字:SHCZFW056 记忆树 1 Every year there is a singing competition in our school. 翻译 每一年,我们学校都会举行一场歌唱比赛。 简化记忆 比赛 句子结构 主语 ("Every year"):表示时间状语的短语 ......
范文 challenge the 勇气 初中

洛谷 P5359 [SDOI2019] 染色

洛谷传送门 LOJ 传送门 dp 好题。 首先有一个显然的状态,设 \(f_{i, x, y}\) 为第 \(i\) 列上下两格的颜色分别为 \(x, y\) 的方案数。但是这样做时间复杂度至少为 \(O(nm^2)\),无法接受。 注意到全 \(0\) 列的转移是重复的。我们可以试着只在两个相邻非 ......
P5359 5359 2019 SDOI

板刷 2019~?的省选题

看看会不会咕/cf 除非极度不可做题,否则一般都是会写的。 每个题限时思考 \(30\min\),如果有想法可以延长;然后自己写/看题解。 BJOI2019 P5322 排兵布阵 \(\color{blue}\texttt{以前做过}\) 比较水的,略。 P5323 光线 \(\color{blue ......
板刷 选题 2019

org.springframework.kafka.listener.ListenerExecutionFailedException: Listener method could not be invoked with the incoming message

问题描述 kafka在yml文件中未开启批量消费时,程序正常运行;但一开启正常消费后,就直接报错;排查问题的过程中一直觉得是配置文件里的问题,最后发现是消费者接受的参数类型错误 问题本质 消费者开启批量消费数据后,不能用单个实体类接收参数,而应该用list 解决方法 修改消费者函数参数类型 ......

[GXYCTF2019]BabyUpload

[GXYCTF2019]BabyUpload 打开靶场看到个上传文件的选项,应该是上传文件漏洞 上传个一句话木马文件尝试 <?php eval($_POST['cmd']);?> 提示不能带有php的后缀 改成jpg后缀,提示“上传类型也太露骨了吧!” 修改了Content-Type为image/j ......
BabyUpload GXYCTF 2019

redis报错MISCONF Errors writing to the AOF file: No space left on device,磁盘满无法写入数据报错

查询报错远程调用接口异常,F12查看网络和标投和预览到是mgr的接口此错误#根据报错提示:Error in execution; nested excepti on is io.lettuce.core.RedisCommandExecutionException: MISCONF Errors w ......
磁盘 MISCONF writing 数据 Errors

[极客大挑战 2019]Secret File 1

[极客大挑战 2019]Secret File 1 审题 看到题目应该是一道简单的按照要求找flag的题目 知识点 跟着题目走 解题 一,查看源码 找到网站进入 点开发现 【注意它说没看清吗】 二,使用BP抓包试试 发现新出现了/action.php 抓到后放到Repeater中响应 得到一个新的网 ......
Secret 2019 File

[SUCTF 2019]EasySQL 1

[SUCTF 2019]EasySQL 1 审题 判断SQL 知识点 SQL注入 解题 堆叠查询 输入1',1",1 发现1有回显 开始爆库 1;show databases# 然后,爆表 1;show tables# 看到flag,想爆列的,但是select啥的都没用。 看了WP后发现大佬们的思路 ......
EasySQL SUCTF 2019

[强网杯 2019]随便注 1

[强网杯 2019]随便注 1 审题 观察题目,判断可能是SQL注入,或者Linux命令执行,结合题目就是注入了 知识点 堆叠注入,handler命令执行,更改表名,预编译 知识点解析 堆叠注入 简单来说,堆叠注入就是按部就班一步步推出FLAG的位置。 首先,一般先查库名,再查表名。 然后,查出表名 ......
2019

[linux kernel] struct pid && the way the kernel used to cast uint32_t pid to struct task_struct

摘抄内容引用自linux kernel document description pre the initialization and the manage of the struct pid is use IDR.(implement by hash table->(why not array?- ......
struct kernel task_struct amp pid

Redis - (error) WRONGTYPE Operation against a key holding the wrong kind of value

zzh@ZZHPC:~$ docker exec -it redis redis-cli 127.0.0.1:6379> SET bike:1 "Process 134" OK 127.0.0.1:6379> GET bike:1 "Process 134" 127.0.0.1:6379> HSET ......
Operation WRONGTYPE against holding Redis

The Acdamic Guideline

How to write your papers? Introduction Problem Methods Results Simulation How to start your research? Observation Problem Reserach Hypothesis Experime ......
Guideline Acdamic The

解决前后端的跨域问题:Access to XMLHttpRequest at '**' from origin '**' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

报错信息: Access to XMLHttpRequest at 'http://localhost:8182/cooperationRequest/getList' from origin 'http://localhost:3004' has been blocked by CORS poli ......

Understanding the linux kernel Chapter2 Memory Addressing

Physical Memory Layout unavailable address for kernel either because they map hardware devices’ I/O shared memory or because the corresponding page fr ......

No 'Access-Control-Allow-Origin' header is present on the requested resource', 跨域访问的解决方法

https://blog.csdn.net/dear_little_bear/article/details/83999391 1. 当请求不在同一域名下的资源文件(ip地址+端口号)时,会报如下错误:“No ‘Access-Control-Allow-Origin’ header is prese ......

Unlocking the Road to Success: The Benefits of Online Driver's Education

In the fast-paced world we live in, online education has become a staple for acquiring new skills and knowledge. This trend extends to driver's educat ......
Unlocking Education Benefits Success Online

The Evolution of Smart Car Technology: A Glimpse into the Future of Mobility

In the last decade, the automotive industry has witnessed a transformative shift towards smart car technology. Once a futuristic concept, smart cars a ......
Technology Evolution Mobility Glimpse Future

[GXYCTF2019]Ping Ping Ping 1

[GXYCTF2019]Ping Ping Ping 1 审题 由标题和内容,我们可以想到Linux的命令执行。 并且由内容/?ip=,看出用GET注入ip变量来读取flag 知识点 Linux的命令执行,空格的绕过 知识点详解 在Linux中,竖线符号 "|" 和分号符号 ";" 具有不同的作用。 ......
Ping GXYCTF 2019

the ObjectARX system dynamic linker object

ObjectARX Reference Guide > Macros > AcRx Macros > acrxDynamicLinker Macro acrxDynamicLinkerC++ define acrxDynamicLinker \ AcRxDynamicLinker::cast(acr ......
ObjectARX dynamic system linker object

MySQL Ignoring the redo log due to missing MLOG_CHECKPOINT between the checkpoint

错误信息: 2023-12-12T09:32:31.383149Z 0 [ERROR] InnoDB: Ignoring the redo log due to missing MLOG_CHECKPOINT between the checkpoint 5777611209 and the end ......
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