25. Namespace with Variables and Functions

We have already declared a namespace MathOps with:

• A variable int x = 10;
• A function int square(int n) that returns n*n.
   

Your task is to:

1. Print the value of x.
2. Call square(x) and print the result.
   
    

Example

Output:

x=10
Square=100

Why this output?

Because the variable x is accessed with MathOps::x and the function is called with MathOps::square(10).

Question Significance

Demonstrates how to declare functions inside a namespace and call them.