Practice[CISCN2019 South China Division]Double Secret

[CISCN2019 South China Division]Double Secret Article directory [CISCN2019 South China Division]Double Secret grasp knowledge Problem-solving ideas keypaylaod Master knowledge ? The flask framework reports an error and the source code is leaked. Use scripts to perform RC4 encryption and decryption. ssti uses built-in functions for template injection. Problem-solving ideas Open the website link, the page […]

Three types of recursion in quick sort and their optimization, non-recursion and three-way division

Personal homepage: Leibaoah May all good things come to you as expected Table of Contents Introduction to quick queue: Three recursive implementations of quick sort: Hoare: Digging a hole: Double pointer: Inter-cell optimization: Optimization of three numbers: Non-recursive implementation of quick sort: Three-way division implementation of quick queuing: Introduction to Quick Sorting: For quick sort, […]

Using BigDecimal in Java to perform operations such as addition, subtraction, multiplication, and division on string values

Directory of series articles SpringBoot + Vue3 implements login verification code function Java implements sending emails (automatically sending emails regularly) Use Redis from another angle to solve the problem of cross-domain access Session Redis cache penetration, breakdown, avalanche problems and solutions Use of Spring Cache – Quick Start List<HashMap<String,String>>implement custom string sorting (key sorting, Value […]

[System Security 16] Optimization principles of addition and subtraction, multiplication and division

0x1 Optimization principle of addition and subtraction 1.1 Identification and Optimization of Addition There are three options for additive optimization: 1) Form 1: Variables and variables 2) Form 2: variable plus constant 3) Form 3: Variable plus 1 C source code: int _tmain(int argc, _TCHAR* argv[]) { int nNum, nA = 8; nNum = argc […]

Fractional addition, subtraction, multiplication, division, power, and polynomial processing of brackets based on C++

Introduction In this article, we will explore a C++ program that can evaluate mathematical expressions involving fractions and power operations. First, we’ll simplify and perform basic fraction operations (addition, subtraction, multiplication, and division) with a series of powerful functions. We then show how to use these functions and Step 1: Define the fraction operation function […]

Linux is just a non-real-time system based on time slice division

Link: https://www.cnblogs.com/xiawen/p/3317302.html Everyone who plays microcontrollers is basically very familiar with operating systems such as μC/OS, FreeRTOS, and ThreadX. They are all real-time operating systems (RTOS) and are widely used in the industrial field; however, for non-real-time systems based on time slice division like Linux, It is difficult to meet the real-time requirements, but currently […]

ospf irregular area division, database table, LSA optimization, ospf extended configuration

Hua subdirectory ospf irregular area 1. Non-backbone areas away from the backbone 2. Discontinuous backbone Irregular area solutions 1.tunnel-point-to-point GRE 2.ospf virtual link 3. Multi-process bidirectional re-publishing (recommended) ospf database table Common types in ospf database Optimize ospf’s LSA and reduce the amount of LSA updates 1. Manual aggregation—–Reduce LSAs in the backbone area 1. […]

Five methods of Vue to implement addition, subtraction, multiplication and division operations

Detailed description of the five methods: Computed Properties: Computed properties are a convenient property provided by Vue.js, which dynamically calculate a new value based on dependent data. The value of a computed property is cached and is recalculated only when the dependent data changes. Computed properties can be used directly in templates just like ordinary […]

Logistic regression full process code, including: import data data division baseline table generation LASSO regression

Logistic regression full process code, including: import data data division baseline table generation LASSO regression Batch univariate logistic Multivariate logistic Nomogram ROC calibration curve DCA This program is mainly to analyze and model a data set. Below I explain each part of the program step by step. Import data and format conversion part: YID:92350698037809482 First, […]