Create a Namespace

A namespace groups related code under a name so it does not clash with other code. Define your own namespace called MathUtils that contains a function int square(int n) which returns n * n.

Code that uses it will call MathUtils::square(...).

Do NOT write a main function.

Expected Output:

25↵
81↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

Namespaces

Code Editor

Tab to indent (Esc then Tab to move on) · Ctrl+Enter to run · Shift+Alt+F to format · Ctrl+Space to expand shortcuts (cout, fori)

Your Output

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Test Cases

Run your code to see test case results.