Programmer Think

Clause 23: replace member function with non member and non friend Why replace member functions with non member functions and non friend functions? In fact, this is to ensure the encapsulation of data. How does the encapsulation of data reflect? A rough measurement. We think that the more functions can access it, the lower the encapsulation of d ...

Grab message: GetMessage: get the message from the system, remove the message from the system, and block the function. When the system has no message, it will wait for the next message. PeekMessage: get messages from the system by viewing. Messages can not be removed from the system. It is a non blocking function. When there is no message in th ...

catalogue 1. What is the pointer? 2. Pointer and pointer type 2.1 pointer + - integer 2.2 dereference of pointer 3. Field pointer 3.1 cause of formation 3.2 how to avoid wild pointer 4. Pointer operation 4.1 pointer + - integer 4.2 pointer - pointer 4.3 pointer relation operation 5. Pointers and arrays  6. Secondary pointer ...

Structures and classes definition Place multiple objects together as a whole //definition struct str { int x; double y; }; //statement struct str; //Only the declaration only knows that str is a struct, but it is not known internally. At this time, str is incomplete type //However, str* mystr can be defined; The pointer size of all ...

Title Description Enter the root node root and an integer expectNumber of a binary tree to find all paths where the sum of node values in the binary tree is expectNumber. 1. The problem path is defined as the node from the root node of the tree to the leaf node (cat bin roars and prompts: pay great attention here - you must go to the leaf no ...

introduction The data structure course design at the end of this semester requires us to complete a simple small program. I chose a ticket sales system to realize some basic functions; Because the time is short and I make up lessons in the review week, there is nothing outstanding. I'll talk about my code implementation and what can be further ...

catalogue 1, Foreword 2, Title Description ① Students who want to practice English can read this question carefully to see if they can understand the question. What do you want us to do! ② The following is the input and output of the sample (read the question carefully! There is an implication) ​ 3, Topic interpretation 4, Train of thoug ...

116. Populate the next right node pointer for each node Meaning: Given a perfect binary tree, all leaf nodes are in the same layer, and each parent node has two child nodes. Binary tree is defined as follows: struct Node { int val; Node *left; Node *right; Node *next; } Fill in each of its next pointers so that this pointer po ...

The complexity of adding, deleting and searching data structures is limited to log(n), which is embodied in four sorting containers: multiset and Multimap in STL Multiset header file: Multimap header file: This paper deals with several container traversal methods of multiset and Multimap: only with the help of iterators multiset::iterator p; p ...

Author: osmanthus New Year cake, no reprint without permission! Continuous updating preface The project is written in C and C + +. It involves many knowledge points and has not been written yet. It is a good project to expand our horizons! In the future, relevant teaching videos will be placed at the end of the article. Please pay att ...