Programmer Group

1, Introduction to typedef Four common uses of typedef: 1. Alias a defined variable type 2. Define function pointer type 3. Define array pointer type 4. Define a new simple alias for complex declarations To sum up, "the type is the same with or without typedef". This sentence can be understood as follows: If it is an array before t ...

Pay attention to one button three times (don't be sure next time) Hello, bald men. Let's study operators together today! Key points of this chapter Introduction to various operators.Expression evaluation Operator Classification: arithmetic operator Shift operators Bitwise operators Assignment operator unary operator Relatio ...

New features in C++11 Article catalog 1, Range based for loop C++ 11 provides a special version of the for loop. In many cases, it can simplify the processing of arrays, which is the range based for loop. When working with an array using a range based for loop, the loop can automatically iterate once for each element in the ...

1) Foreword In 1979, Benjani of Bell Labs and others tried to modularize the unix kernel when they tried to analyze the unix kernel, so they extended it on the basis of C language, added the mechanism of classes, and completed a runnable preprocessor called C with classes. C++98: the first version of C + + standard, which is suppo ...

6.1 example: Digital triangle   [problem description] there is a digital triangle with layer number n (n ≤ 1000) (as shown in the figure below). There is an ant walking down from the top floor. When walking down one level, it can go down left or right. Find the maximum value of the sum of the numbers it passes through after going to th ...

preface C language provides different data types, such as int, float, double, char, etc. different types determine the space and expression of a variable in memory. However, when we define a person, it is difficult to define different attributes of a person with the same data type, because people's height, age, weight and other attribute ...

heap Heap is a special kind of data structure in computer science. Heap is usually an array object that can be regarded as a complete binary tree. The heap always satisfies the following properties: The value of a node in the heap is always not greater than or less than the value of its parent node;Heap is always a complete binary tree. The ...

What is the needle in front? This article has written the basic knowledge of pointers, and then through this article to have a deeper understanding of pointers catalogue   1, Character pointer   2, Pointer array 3, Array pointer Array name and & array name Use of array pointers 4, Function pointer Function address Funct ...

The essence of a program is "data + algorithm". The following four members are used to represent "data". field: 1. What is a field (1) A field is a variable that represents an association with an object or type (class and structure) The essence of a field is a variable, which is used to store data. A field is used to s ...

1, Experimental objects 1. Master stack operation and application; 2. Understand the robustness of the algorithm; 2, Experimental contents 1. Implement lp, rp and operate functions in calculator class; 2. Improve the evaluate function of calculator class and increase the legitimacy check of input, including filtering out all illegal inputs ...