Structure of a C++ Program

In order to write a C++ program, it is important to understand its structure. A C++ program typically consists of a set of functions, one of which must be named main. This main function serves as the entry point for the program and is executed first when the program is run.

Here is a basic structure of a C++ program:

1#include <iostream>
2
3using namespace std;
4
5int main() {
6    // Your C++ code here
7    return 0;
8}

Let's break down the different parts of this program:

• #include <iostream>: This line includes the iostream header file, which allows us to use input/output streams such as cout and cin.
• using namespace std;: This line allows us to use the std namespace without explicitly specifying it.
• int main(): This is the main function, which is the entry point for the program.
• // Your C++ code here: This is where you can write your own C++ code.
• return 0;: This line indicates the end of the main function, and 0 is returned to indicate successful program execution.

Understanding the structure of a C++ program is essential as it provides a foundation for writing and executing C++ code.

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#include<iostream>

​

using namespace std;

​

int main() {

    // Your C++ code here

    return 0;

}