[C + +] [problem solution] performance ranking

subject Title Description The new year is coming! As a CEO with n employees, it's time for you to rank the employees' performance annually. Through the indicators of n employees this year (skill p, communication r, cooperation s, project t), Calculate the annual performance of each employee, and output everyone's name from high to low. Per ...

Posted by phpnewbiy on Sat, 22 Jan 2022 07:50:35 +0100

modern_cpp_3-C++ Basic Syntax

Slides of structure 2: Modern C++ for Computer Vision Lecture 2: C++ Basic Syntax (uni-bonn.de) This part mainly introduces the keywords, entities, entity declarations and definitions, types, variables, naming rules of identifiers, expressions, if else structures, switch structures, while loops, for loops, arithmetic expressions, condition ...

Posted by aswini_1978 on Sat, 22 Jan 2022 06:45:58 +0100

New feature of C++17 -- std::optional

catalogue 1, Foreword 2, Use of optional 3, Solve the problems in the preface 1, Foreword We may often encounter this situation in the process of writing code: A function obtains a return value after a series of calculations, but the function may have abnormal branches during execution. The value to be calculated has not been obtained wh ...

Posted by danielson2k on Sat, 22 Jan 2022 06:42:07 +0100

C + + message bus Mozart: optional

optional principle Mozart's optional is also a container, which is responsible for managing an optional holding value. This holding value can exist or not exist. File git address: https://github.com/libmozart/foundation/blob/master/mozart%2B%2B/mpp_foundation/optional.hpp Implementation principle: in addition to containing the value, the data ...

Posted by Deadmeat on Sat, 22 Jan 2022 06:05:04 +0100

Basic knowledge of C + + (10000 words summary)

Article catalogue catalogue Article catalogue preface 1. Input and output of C + + 1.1.C + + header file 1.2.C + + I / O 2. Default parameters 2.1 definition of default parameters 2.2 classification of default parameters **All default parameters **Semi default parameter 2.3 precautions for default functions 3. Function overloading ...

Posted by LordTyphon on Sat, 22 Jan 2022 05:37:32 +0100

[personal notes] OpenCV4 C + + quick start 07 lesson

Personal data, for learning purposes only Modification time - 17:40:15, January 21, 2022 Course of study: OpenCV4 C + + quick start video 30 lectures Video Teacher: Jia Zhigang 07 scroll bar operation demonstration - parameter transfer adjustment opencv knowledge points: Parameter passing - createTrackbarConcept - brightness and contrastCl ...

Posted by Shiny_Charizard on Sat, 22 Jan 2022 04:06:50 +0100

Pointer array and array pointer - not twins of twins

catalogue 1, Pointer array 1.1 basic knowledge of pointer array 1.2 practical case analysis of pointer array Second, array pointer 1.1 basic knowledge of array pointer 2.2 application examples of array pointers 2.2.1 negative examples 2.2.2 correct examples As the title shows, today we will know a pair of twins, but not twins. 1, Poi ...

Posted by jovankau on Sat, 22 Jan 2022 00:21:45 +0100

Internal memory pool (ngx_pool_t) technology for nginx source code analysis

Article Directory Preface 1. Basic concepts of memory pools 2. nginx data type monitoring 3. Definition of nginx memory pool related structures 1. Memory pool data management structure 2. Memory pool data structure 3. Large Memory Block Data Structure 4. Memory Release Processing Structure 4. Operation of memory pool 1. ...

Posted by zzlong on Fri, 21 Jan 2022 21:21:42 +0100

[C + + Notes] IV. complex data types

catalogue 18. Pointer Foundation 18.1} what is stored in the variable 18.2 how to use variables in programs 19. Pointer movement and data type 20. Pointer initialization 21. Use the new keyword to allocate memory space 22. Use delete to free memory space 23. Dynamically create and release arrays 24. Use dynamically created arrays 25. ...

Posted by ctiberg on Fri, 21 Jan 2022 19:59:04 +0100

Use a red black tree to encapsulate set and map at the same time

๐Ÿ”’ Quick navigation and articles related to this article ๐Ÿ”’ Basic use of set and mapClick through to the articleRed black treeClick through to the article Red black tree code We want to encapsulate the red black tree of KV model and simulate the implementation of set and map. The code used is as follows #include<iostream> using names ...

Posted by jeliot on Fri, 21 Jan 2022 16:49:36 +0100