Chapter 3 of learning notes of Essential C + +: generic programming style

1, Generic programming style:    in the process of learning, I think "pan" here refers to more "extensive" and "general", which has stronger universality. The processing methods of different data types can be solved with the same function instead of writing functions with the same function for different ...

Posted by dicky18 on Wed, 19 Jan 2022 20:25:07 +0100

KMP algorithm (string matching problem) acm winter vacation training diary 22 / 1 / 19

First, let's look at an example: If we don't consider overtime, we can use the most simple method (violence) to solve it //Violence algorithm (n*m) int ViolentMatch(char *s,char *p) { int sLen = strlen(s); int pLen = strlen(p); int i = 0; int j = 0; while(i<sLen&&j<pLen) { if(s[i]==p[j]) { i++; j++; } ...

Posted by ceanth on Wed, 19 Jan 2022 20:18:48 +0100

[C + +] classes and objects (middle) -- constructor + destructor + copy constructor

1. The default six member functions of the class If a class has no members, it is called an empty class. Is there nothing in the empty class? Not really. If we don't write any class, the following six default member functions will be automatically generated. This is the complex initialization mechanism of C + +. class Date{} They are ...

Posted by imartin on Wed, 19 Jan 2022 20:01:11 +0100

Introduction training for beginners of Niuke network programming 2

BC11 student basic information input and output describe Input a student's student number and 3 subjects (C language, mathematics, English) scores in turn, and output the student's student number and 3 subjects' scores on the screen (Note: the scores shall be rounded and 2 decimal places shall be reserved). Data range: student number mee ...

Posted by Popcorn on Wed, 19 Jan 2022 13:40:28 +0100

Overload of assignment operator

Overload of assignment operator Operator overloading In order to enhance the readability of the code, C + + introduces operator overloading. Operator overloading is a function with special function name, and also has its return value type, function name and parameter list. Its return value type and parameter list are similar to ordinary f ...

Posted by afam4eva on Wed, 19 Jan 2022 13:07:18 +0100

[C + + from 0 to 1] Part 3: classes and objects

1, Preliminary understanding of process oriented and object oriented C language is process oriented, focusing on the process, analyzing the steps of solving the problem, and gradually solving the problem through function call. C + + is based on object-oriented and focuses on objects. It divides a thing into different objects and complete ...

Posted by Aleks on Wed, 19 Jan 2022 11:20:07 +0100

[C + + from bronze to king] Part 10: simulation and implementation of vector class of STL

Catalogue of series articles preface 1, Depth analysis and Simulation of vector 1. Simulation implementation of the core interface of vector namespace yyw { template<class T> class vector { public: typedef T* iterator; typedef const T* const_iterator; public: iterator begin() { return _start; } it ...

Posted by bbauder on Wed, 19 Jan 2022 10:46:49 +0100

Basic syntax you must know when you first know C + +

catalogue Namespace Definition of namespace C + + input & output Default parameters Function overloading (important syntax knowledge in C + +) Namespace stay C/C++ There are a large number of variables, functions and classes to be learned later. The names of these variables, functions and classes will all exist in the gl ...

Posted by raghavan20 on Wed, 19 Jan 2022 09:44:23 +0100

c + + common array structure and hash structure definition

vector definition method Define and initialize 3 two-dimensional arrays with 9 rows and 9 columns and a value of 0 vector<vector<int>> row (9, vector<int>(9,0)); vector<vector<int>> col (9, vector<int>(9,0)); vector<vector<int>> box (9, vector<int>(9,0)); Hash ...

Posted by soulmasta on Wed, 19 Jan 2022 09:04:33 +0100

New features of C++11/14 -- template enhancement and variable templates

Template enhancement 1. External template 1) Problems of traditional C + + In traditional C + +, templates are instantiated by the compiler only when used. In other words, as long as the fully defined template is encountered in the code compiled in each compilation unit (file), it will be instantiated. This results in an increase in compi ...

Posted by slick101 on Wed, 19 Jan 2022 06:59:05 +0100