fedor game and new

[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) = ......
数论 Divisor and Gcd

js的new做了什么

new对象底层发生了什么 ```javascript function Person(phone, age) { this.age = age; this.phone = phone; this.showone = function () {}; } Person.prototype.docall ......
new

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 ......

rabbit MQ —— ha-sync-mode. message 同步/ 丢失 in new pods

经典队列镜像 — 兔子MQ (rabbitmq.com) why? message 信息同步 =》 queue 一段时间不可用(可用性 降低) Configuring Synchronisation Let's start with the most important aspect of queu ......
ha-sync-mode message rabbit mode pods

[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 ......

99 new 比较的是地址;直接赋值 比较的是字符串内容;

原因是new 是开辟了一个新的空间 1 package com.fqs.demo001; 2 3 public class Compare { 4 public static void main(String[] args) { 5 String s1=new String("a,b,c"); 6 ......
字符串 字符 地址 内容 new

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 ......
sequence slime and

(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 ......
find grep and

Differences between SysVinit, Upstart and Systemd

Differences between SysVinit, Upstart and Systemd https://www.computernetworkingnotes.com/linux-tutorials/differences-between-sysvinit-upstart-and-sys ......
Differences SysVinit between Upstart Systemd

Java 字符串转日期 str 转为 Date 类型 Date date = new SimpleDateFormat("yyyy-MM-dd").parse("2022-12-28");

Java 字符串转日期 str 转为 Date 类型 Date date = new SimpleDateFormat("yyyy-MM-dd").parse("2022-12-28"); https://blog.csdn.net/weixin_35756690/article/details/1 ......

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 ......
Monitoring Management Percona pmm and

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. ......
dispaly tables layui form Wtm

games101 ray-tracing加速结构改进 BVH+SAH

加速结构改进 BVH + SAH 两者都是空间划分算法,使用这些算法是为了节省光线逐个与包围盒做交浪费的性能。 Bounding Volume Hierarchy BVH是基于图元(Primitive)的空间划分索引结构,划分物体再分别求他们的包围盒,这样就避免了一个同样的物体出现在不同的格子里。但 ......
ray-tracing tracing 结构 games 101

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 ......
牝牛 牡牛 Luogu Bulls P6191

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 ......
时间 时间段 sqlserver 两个 between

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 ......
Problem Solving Organization Industrial and

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 ......
Compare java swap CAS and

CodeForces 1839E Decreasing Game

[洛谷传送门](https://www.luogu.com.cn/problem/CF1839E "洛谷传送门") [CF 传送门](https://codeforces.com/problemset/problem/1839/E "CF 传送门") 不会,不知道该如何评价。确实是自己的问题。 这种 ......
CodeForces Decreasing 1839E 1839 Game

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 $S$, ......
Permutation AtCoder Regular Contest Bracket

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 ......
Incomplete shared_ptr unique_ptr ptr shared

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 ......
优先级 mysql_AND mysql AND

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 ......
Operating Process System Thread and

C++中malloc/free与new/delete的区别与联系

原文:https://blog.csdn.net/u010510020/article/details/76266505 一、用法: 用malloc 申请一块长度为length 的整数类型的内存,程序如下: int *p = (int *) malloc(sizeof(int) * length); ......
malloc delete free new

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 ......
GameObjects Unity3D Unity3 select Unity

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 ......

Fourier Analysis and Nonlinear Partial Differential Equations 阅读笔记 (第一章)

# 前置知识 在进入对Littlewood-Paley理论的正式学习之前, 需要先了解一些基础的$L^p$空间的知识, 这又以实变函数论的课程为基础. 现在既然实变函数已经结课, 但$L^p$空间尚未开张, 就从周民强著《实变函数论》的第六章开始整理. ##### 定义: $L^p$空间, 本性有界 ......

UNIQUE VISION Programming Contest 2023 New Year (AtCoder Beginner Contest 287) ABCDE

# [UNIQUE VISION Programming Contest 2023 New Year (AtCoder Beginner Contest 287)](https://atcoder.jp/contests/abc287) ## A - Majority ### Problem Sta ......
Contest Programming Beginner AtCoder UNIQUE