ergodicity liouville theorem and
php解决 mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysq
The mysql extension is deprecated and will be removed in the future: use mysq 翻译： mysql_connect这个模块将在未来弃用，请你使用mysqli或者PDO来替代。 解决方法： 打开php.ini 配置文件把 di ......
Counting principle and Program Testing
# Reference https://www.shuxuele.com/data/basic-counting-principle.html # 基本计数原理 若有m个方法去做一件事，及n个方法去做另一件事， 则有m×n个方法去做这两件事。 # 应用场景 这个原理只适合在所有选择都是独立时才适用。 ......
An Introduction to Linux Automation, Tools and Techniques
An Introduction to Linux Automation, Tools and Techniques https://linuxconfig.org/an-introduction-to-linux-automation-tools-and-techniques In the fast ......
CF1770F Koxia and Sequence
一步都没想到，一定是状态不好吧，一定吧一定吧？ 加训数数！ ## 题意 给定 $n, x, y$，定义好的序列 $\{a_i\}_{i = 1}^n$ 满足 $\sum\limits_{i = 1}^na_i = x, \operatorname{OR}\limits_{i = 1}^na_i = ......
MATH is the LOGIC OF CERTAINTY and STATISTICS is the LOGIC OF UNCERTAINTIES
Statistics 110 of Harvard University: Math is the logic of certainty, Statistics is the logic of uncertainty. Strategic practice: Clarity; Honesty ......
python: encode and decode
import binascii geovin=b"geovindu" adu=base64.b64encode(geovin) #加密码 print(adu) edu=base64.b64decode(adu) #解密 print(edu) s=["医疗",400,1] column=('Insur ......
【题解】CF754D Fedor and coupons（优先队列）
# 【题解】CF754D Fedor and coupons ## 题目链接 [CF754D Fedor and coupons](https://www.luogu.com.cn/problem/CF754D) [CF1029C Maximal Intersection](https://www. ......
Fourier Analysis and Nonlinear Partial Differential Equations 阅读笔记 (第一章)
# 实分析基础 ## Holder与卷积不等式 首先从经典的Holder不等式入手. **命题: 经典情况下的Holder不等式** >设$(X,\mu)$是测度空间, $(p,q,r)\in[1,\infty]^3$满足 >$$\frac{1}{p}+\frac{1}{q}=\frac{1}{r} ......
[数论]Divisor and Gcd
## Divisor and Gcd ### 1、算术基本定理：n的质因数分解唯一 一些常见结论： 1.素数无限 2.$\lim_{n\rightarrow+\infty}n\prod\dfrac{n}{\frac{n}{\ln{n}}}$(Π(n)表示 ab|c$ 3.$a|bc,(a,b) = ......
C++ multi process share value via write and read data from serialized file,the better way is shared_memory,pipeline,message queue,socket
#include <atomic> #include <chrono> #include <cmath> #include <condition_variable> #include <cstddef> #include <forward_list> #include <fstream> #incl ......
[6] Fast and Practical Secret Key Extraction by Exploiting Channel Response 论文精读 INFOCOM 13'
摘要 摘要写的很清楚，几句话说明了当前密钥发展现状，即使用RSS为基础的密钥生成解决方案的生成速率有待提升，因此本文主打一个高速率；此外本文提出了CGC算法来解决现实生活中的信道互易性差的问题；此外，其能够抵御被认为对RSS技术有害的恶意攻击！ 但是他的Abstract我有一点不满哈，全文都是CSI ......
Custom directive is missing corresponding SSR transform and will be ignored
## 背景 最近在给业务组件库集成指令库，将各个项目中常用的指令如一键复制、元素和弹窗拖拽等封装到一起，进行统一发版维护。 业务组件库项目架构采用的是pnpm+vite+vue3+vitepress，其中vitepress主要做组件库文档站点同时展示可交互的组件。 ## 问题 开发运行时指令库dem ......
slime and sequence
## Slime and Sequences https://codeforces.com/contest/1349/problem/F2 Two days' hard work. Firstly, consider the total number of this kind of sequence ......
(find and grep)
前言 大家好，我是 god23bin。欢迎来到《一分钟学一个 Linux 命令》系列，每天只需一分钟，记住一个 Linux 命令不成问题。今天需要你花两分钟时间来学习下，因为今天要介绍的是两个常用的搜索命令：find 和 grep 命令。 find 什么是 find 命令？ find 命令用于在指定 ......
Differences between SysVinit, Upstart and Systemd
Differences between SysVinit, Upstart and Systemd https://www.computernetworkingnotes.com/linux-tutorials/differences-between-sysvinit-upstart-and-sys ......
安装pmm(Percona Monitoring and Management)
环境:Os:Centos 7pmm2 ####################################服务端安装#######################服务端安装我们这里使用docker的方式部署一、server端部署：1.监控机器安装docker：ip:192.168.56.101操 ......
Wtm layui add form pop out and dispaly in tables
#region AddChargeItem [AllRights] //use in edit page public IActionResult AddChargeJob(string id) { var vm = Wtm.CreateVM<tbl_ma_dbn_jobListVM>(); vm. ......
Luogu P6191 [USACO09FEB]Bulls And Cows S （牡牛和牝牛）
# [USACO09FEB]Bulls And Cows S ## 题目背景 一年一度的展会要来临了，Farmer John 想要把 $N$（$1 \leq N \leq 100,000$）只奶牛和公牛安排在单独的一行中。 John 发现最近公牛们非常好斗；假如两只公牛在这一行中靠的太近，他们就会吵 ......
论文阅读 | Artificial Intelligence Security: Threats and Countermeasures
近年来，随着计算硬件和算法技术的快速进步，人工智能（AI）在图像识别、教育、自动驾驶、金融、医疗诊断等广泛领域展现出明显优于人类的优势。然而，基于人工智能的系统在从最初的数据收集和准备到训练、推理和最终部署的整个过程中普遍容易受到各种安全威胁。在基于人工智能的系统中，数据收集和预处理阶段分别容易受到 ......
sqlserver使用between and 筛选时间，两个时间段选择一样筛选当天的数据无法筛选
一般我们使用时间筛选代码是 select * from 表名where date between RQ AND RQ1 但是这样子是无法筛选当天数据的，想要筛选当天数据得对这个代码进行一下修改，这里是sqlserver的代码 select * from 表名where CONVERT(nvarcha ......
5、题目：Training in Creative Problem Solving: Effects on Ideation and Problem Finding and Solving in an Industrial Research Organization
期刊信息 （1）作者：George B. Graen，Stephen G. Graen （2）期刊：Organizational Behavior and Human Performance （3）DOI：10.1016/0030-5073(82)90233-1 （4）ISSN：0030-5073 ......
java并发之CAS(Compare and swap)
### 1. 简介 CAS的底层调用native方法，最终是利用CPU的一个特殊指令，该指令由CPU保证了原子性，而且包含多个操作，比如先比较再更新。 原理： - （1）需要读写的内存值（V）、原值（A）和新值(B)。如果V的值与原值A相匹配，那么把B设置给V，否则处理器不做任何操作。 - （2）无 ......
AtCoder Regular Contest 141 C Bracket and Permutation
[洛谷传送门](https://www.luogu.com.cn/problem/AT_arc141_c "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/arc141/tasks/arc141_c "AtCoder 传送门") 考虑给出 $S$， ......
Incomplete types and shared_ptr / unique_ptr
If the object being deleted has incomplete class type at the point of deletion and the complete class has a non-trivial destructor or a deallocation f ......
工作记录_mysql_AND优先级高于OR优先级
## 1.错误示例 ```sql SELECT t.task_department_name, COUNT(*) total_count, SUM(CASE WHEN status='done' THEN 1 ELSE 0 END) AS finish_count, SUM(CASE WHEN st ......
Operating System Process and Thread
# Process Description and Control **3.1: What is an instruction trace?** An instruction trace for a program is the sequence of instructions that execu ......
Difference between Github's "Environment" and "Repository" secrets?
Difference between Github's "Environment" and "Repository" secrets? 回答1 Well, environment secrets are specific to an environment in Github Actions whi ......
Unity3D：Pick and select GameObjects
推荐：将NSDT场景编辑器加入你的3D工具链 3D工具集：NSDT简石数字孪生 Pick and select GameObjects 可以在 Scene 视图中或从 Hierarchy 窗口中选择一个游戏对象。也可以一次选择多个游戏对象。 Unity 会在 Scene 视图中突出显示选择的游戏对象 ......
已解决 DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated since Python 3.3, and in 3.9 it will stop workingfrom collections import Iterable
场景描述 E:/worksp_py/hardwary/100day/twentyfive/itertor.py:4: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collect ......