Programmer Group

1. What is a callback function? Callback function, just listen to the name is higher than ordinary functions. What is a callback function? I'm sorry I haven't read much. I haven't seen the definition of callback function in any book. I searched Baidu and found that there are different opinions. A large part of them use a similar scene to explai ...

Starting from today, five classic examples of C language will be updated every day, which is suitable for friends who are learning C language or just finished learning C language and want to lay a solid foundation. Each example is equipped with analysis and review of basic knowledge. Novice authors hope that families will pay attention to and p ...

  This paper briefly introduces the concept of tree. The more important are the implementation of heap, heap sorting, TOP-K problem, traversal of binary tree (pre, middle, post order and sequence traversal) and the implementation of binary tree function catalogue 1, Concept and structure of tree 1.1 concept of tree 1.2 representation o ...

catalogue How to put it? I think if you don't write this thing again, you may be busy in the future. Moreover, the pointer is also an important part of the C language. Besides, many students will be tossed by the pointer. Can't we help each other? 1, Some simple analysis of the pointer   1, Function of pointer 1. Processing complex ...

Header file name In the new style of C + +, the expanded name of header file is cancelled object-oriented C language is a process oriented programming language. The core of process oriented programming is: function decomposition, top-down, layer by layer decomposition and layer by layer refinement. Program = data structure + algorith ...

Queue learning notes – chain team and sequence team 1. Queue (circular queue) In the sequential storage structure of the queue, in addition to using a group of storage units with continuous addresses to store the elements from the queue head to the queue tail in turn, it is also necessary to attach two integer variable front and rear to ...

This article is mainly a summary based on oiwiki, and will do a series of related articles in the future. If you want to continue reading, you can follow the column. The purpose of this column is to lay a foundation for my recent systematic. So I want to write a column for beginners who like ACM. Why read in and output optimization In f ...

​   Common string function implementation! Have your own "library"! Reviewing a few commonly used strings, I think of a more interesting way to review them, which is to write these commonly used string functions by myself. Although it's common for big guys, it's a happy feeling for me to see my.h file included by #include. Today ...

1, Redis common commands Redis is generally installed on linux, which is divided into server and client. Start Redis server Enter the following command on the terminal to start the Redis server: $redis-server Start Redis client Enter the following command on the terminal to start Redis client: #If the password is set, use the follow ...

catalogue 1, Description 2, Function realization 3, Screenshot of operation results         1. System main interface         2. Create inventory information         3. Show all information         4. Shopping cart         5. Settleme ...