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C++ is one of the most popular languages ever created. Its application domains include system software, application software, device drivers, embedded software, high performance server and client applications and entertainment software such as video games. C++ is also used in hardware design. The standard version of C++ is ISO//IEC 14882:2003.

Here is an example of a Program to enter an integer and output the cube of that integer

#include

#include

int cube(int x); //The prototype.



void main()

{

clrscr();

int a;

cout << "Enter an integer : ";

cin>>a;

cout << "The cube of " << a << " is : " << cube(a) << endl; //Call the function cube(a).

getch();

}

//Defining the function.

int cube(int x)

{

int y;

y=x*x*x;

return(y);

}

Here a function called the cube of a number is being created and that function defined and is stored in a variable called int y. Where, y = x*x*x which x3.

When we run the function by entering a number the output, i.e., the cube of that particular number is generated.

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