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preface: This article is the advanced level of pointer. In the previous article, we have a basic understanding of pointer, but we don't have an in-depth understanding of it. Therefore, we enter the advanced pointer and have an in-depth understanding of the relationship between pointer and other knowledge. If you haven't read the pointer, ...

1. Brief introduction of the system Using C++ language, this paper designs and implements an inbound and outbound commodity management system suitable for supermarkets, which implements functions such as commodity purchase, sales, commodity classification, revenue management, order management, administrator and so on. 2. Systematic Hierarch ...

C++ STL container classification Use the following table to list the commonly used C++STL containers (including the newly introduced containers of C++11): Sequential container This section summarizes the contents of sequential containers. vector container content sorting Underlying data structure: an array whose memory can be expanded tw ...

Interface Overview namespace NZB { // Simulation Implementation of list node template<class T> struct _list_node { _list_node(const T& val = T()); // Construction node //Member variable T _val; // data _list_node<T>* _next; // Backward pointer _list_node<T>* _prev; // Forward pointer ...

As we all know, learning programming is a very boring thing, especially when you can't get the results you want when running the program and still can't solve it after some debugging. I believe every programmer has encountered this situation, which is also the necessary stage for the birth of a great programmer.Sadly, the same mistakes continue ...

title: Game Theory (II) date : 2021-11-6 Tags: ACM, mathematics, game theory author : Linno Pre cheese - SG function You can see my last blog: https://blog.csdn.net/SC_Linno/article/details/121181361 Firstly, an ICG game model is given. Given a directed acyclic graph and a piece on a starting vertex, two players alternately move the piec ...

6 function 6.1 general Function: encapsulate a piece of frequently used code to reduce repeated code A large program is generally divided into several program blocks, and each module realizes specific functions. 6.2 definition of function The definition of a function generally consists of five steps: 1. Return value type 2. Function ...

Data classification processing describe In the information society, there are huge amounts of data that need analysis and processing, such as the analysis of ID number, QQ users, mobile phone numbers, bank accounts and other activities and records. Collect and input big data and classification rules, and classify and output big data through b ...

1 system requirements Address book is a tool that can record the information of relatives and friends. The functions to be realized in the system are as follows: Add contact: add a new person to the address book. The information includes (name, gender, age, contact number, home address) and records up to 1000 peopleShow contacts: displays al ...

In the previous article, we described how an execution plan is generated. This time, let's see that the generated execution plan is optimized by Optimizer. summary Optimizer, as its name suggests, is a component used to optimize execution plans. Database optimizers are usually divided into two types: rule-based optimizer (RBO) and Cost-base ...