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acwing game 24 This week's competition has three topics: simulation, enumeration and simulation acwing 4070. XOR Link: 4070. XOR - AcWing question bank Title Description Problem solving ideas Very simple simulation, record the maximum value and the last input when entering, and don't even open the array code #include<iostream> ...

part1(1-500), part3(1000-*) 502. IPO Given k，w,profits Array and capital Array. k Indicates the maximum number of tasks that can be completed. w Is the initial capital. profits Is the benefit of each task. capital This is the initial funding required to start this task. After completing one task at a time, add the income to the capital. Ask ...

springboot e-commerce project mall4j( https://gitee.com/gz-yami/mall4j) java open source mall system Verify the whole process of object header change during synchronized lock upgrade jdk version: 1.8 System: Windows 10 64 bit jvm startup parameters: - XX:BiasedLockingStartupDelay=0 (cancel delayed load bias lock) First, we need to know ...

An easy-to-use C++ command line analyzer, SmpCommandLine Everything starts with simplicity. This article introduces a simple command line analyzer, SmpCommandLine. SmpCommandLine is a lightweight C++ package that extracts parameters that users enter on the command line. There are already many command line analysis tools in the world, such as ...

Visualization and graph analysis of dependency parsing in natural language processing (NLP) Although the effect of dependency parsing is not as good as that of word segmentation and NER, it also has its use value. In our daily work, we have to deal with it. How to analyze the results of dependency parsing, an important aspect is its visualizat ...

Database notes 1 1. Relationship between SQL, DB and DBMS DB: the DataBase exists as a file on the hard disk SQL: structured query language, high-level language, compiled and executed DBMS: DataBase Manager System Mysql, SQLservice, Oracle, DB2, Syba se Relationship: DBMS executes SQL statements and then operates DB data 2. Tables and g ...

How does Python store the crawled data in txt, excel and mysql respectively 1. Page analysis The page I crawled is Tencent sports, and the link is as follows: https://nba.stats.qq.com/player/list.htm **Observe the above figure: * * the left shows 30 NBA teams respectively, and the right shows the details of the corresponding players of ...

1 Principle 1.1 B-tree (1) m-way lookup tree An m-way search tree is either an empty tree or a tree satisfying the following properties: The root has up to m sub trees and has the following structure: ,Is a pointer to a subtree,The key is, In subtreeAll keys in are greater than, less than. In subtreeAll keys in are greater thanIn subtreeAl ...

Python can detect and recognize your face from images or videos. Face detection and recognition is one of the research hotspots in the field of computer vision. The applications of face recognition include face unlocking, security protection, etc. doctors and medical staff use face recognition to obtain medical records and medical history a ...

3, Static members and friends 1. Constant (const is used in C + + as in C language) class A{ public: A():x(100){} const int x;//Constant data member void func() const;//Constant member function const A a;//Constant object } Example 9. Parameter passing characteristics of constant member functions and constructors ...