product sum and

Proj. CAR Paper Reading: Augmenting Decompiler Output with Learned Variable Names and Types

## Abstract 背景: 1. decompilers难以恢复注释、variable names, custom variable types 本文: 工具:DIRTY((DecompIled variable ReTYper) 方法: postprocesses decompiled fil ......

dup2 and dup修改和恢复进程的标准输入

`dup2(oldfd, newfd)`. 旧的文件描述符,和新的文件描述符指向同一个文件。 `int ans = dup(oldfd);` 返回值文件描述符和旧的文件描述符指向同一个文件。 通过dup/dup2,可以将多个文件描述符指向同一个文件实体,它们都可以等效得访问同一个文件。 dup2的操 ......
dup 进程 标准 dup2 and

[LeetCode] 1262. Greatest Sum Divisible by Three

Given an integer array nums, return the maximum possible sum of elements of the array such that it is divisible by three. Example 1: Input: nums = [3, ......
Divisible LeetCode Greatest Three 1262

[20230616]One Deadlock of 'row cache lock' and 'library cache lock'.txt

[20230616]One Deadlock of 'row cache lock' and 'library cache lock'.txt--//链接http://ksun-oracle.blogspot.com/2023/06/one-deadlock-of-row-cache-lock-an ......
cache 39 lock 20230616 Deadlock

WABCO DIAGNOSTIC KIT (WDI) WABCO Trailer and Truck Diagnostic Interface

Wabco Diagnostic Kit is a universal diagnostic tool designed for maintenance of trailers, trucks and buses. Wabco Diagnostic tool supports most popula ......

Understanding JavaScript Garbage Collection: Dive into Reference Counting and Mark-and-Sweep Algorithms

JavaScript, the programming language of the web, is often praised for its ability to handle memory management automatically. The JavaScript engine's g ......

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。 ......
principle Counting Program Testing and

[ABC282Ex] Min + Sum

[ABC282Ex] Min + Sum 一道分治题。比较新的地方在于,别的题都是按中点为M分治,而这道题是按最小值为M分治。记录b的前缀和sum。【L,R】最小值为M,则分为【L,M-1】,【M+1,R】。 #include<bits/stdc++.h> using namespace std; ......
ABC 282 Min Sum Ex

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 = ......
Sequence 1770F Koxia 1770 and

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 ......
LOGIC UNCERTAINTIES STATISTICS CERTAINTY the

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 ......
python encode decode and

【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. ......
题解 队列 coupons Fedor 754D

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} ......

csIAHDFPM and csILBFGS

......
csIAHDFPM csILBFGS and

[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

CF1817E Half-sum 另解与 Trygub Number

一题水两篇怎么说。 上一篇中我们采用智慧方法减少了比较次数,避免了使用复杂的高精度数。现在我们有高论!可以做到 $\mathrm O(\log_B V\log_2 n)$ 在某一位加或者减一个大小 $\mathrm O(V)$ 的数,支持判断正负和取特定位的值。怎么做呢。很简单,我们每一位的数值域原 ......
Half-sum Trygub Number 1817E 1817

CF1817E Half-sum

## 题意 有一个大小为 $N$ 的非负整数集合 $A$,每次你可以从集合中取任意两个数,并将它们的平均数放回序列。不停操作,知道集合最后剩下两个数。请求出这两个数的差的绝对值的最大值对 $10^9+7$ 取模的结果。 数据范围:$1\le N\le 10^6, 0\le A_i\le 10^9$。 ......
Half-sum 1817E 1817 Half sum

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 ......

Leetcode Hot 100 & 560. Subarray Sum Equals K

参考资料: 考点:子串 & [题干] 1 Input: nums = [1,1,1], k = 2 2 Output: 2 这道题说实话看得我一脸懵,第一时间想到的自然是双层循环遍历的一个$O(n^2)$的解法,也就是官方的解法一。但是使用这种解法会超时(Python语言是这样的,评论区有人提到了) ......
Leetcode Subarray Equals Hot 100

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 ......

AtCoder Beginner Contest 298 Ex Sum of Min of Length

[洛谷传送门](https://www.luogu.com.cn/problem/AT_abc298_h "洛谷传送门") [AtCoder 传送门](https://atcoder.jp/contests/abc298/tasks/abc298_h "AtCoder 传送门") 挺无脑的。是不是因 ......
Beginner AtCoder Contest Length of

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

[ABC162E] Sum of gcd of Tuples (Hard)

## 题面翻译 给定$n,k$,求 $$\sum^k_{a_1=1}\sum^k_{a_2=1}\sum^k_{a_3=1}\dots\sum^k_{a_n=1}gcd(a_1,a_2,a_3,\dots,a_n)\ mod\ 1000000007$$ ### 制約 - $ 2\ \leq\ N\ ......
Tuples 162E Hard of ABC

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