Like any other programming language C++ also follows some basic structure to develop a program.

 #include directive

 Global Declarations

 return-type main()
   {
	Statements
   }

The "#include" directive is used to include the files specifed inside the "<>" brackets. Mostly standard files or header files of C++ are included using this directive like iostream.h, math.h etc.

The variables and other elements that need to be used all over the program or rather globally should be declared after the include directive.

The main function is executed first in a C++ program. If a main() is supposed to return a integer value then the return type should be specified as "int main()". If no value is returned simply use the return-type as "void".

The statements used inside the "main()" function can include the functions, classes used in C++ along with other statements.

   #include <iostream.h>
   void main()
    {
	cout << "Hscripts.com!";
    }

The above is the example of a structure in C++.