Sth about Function

In C++,  void is a special return type used in functions that do not return a value. When a function is declared with a void return type, it means the function performs an action but does not give back any data to the caller.

A parameter is a variable defined in a function's declaration or definition. It acts as a placeholder that specifies what type and how many inputs a function expects. Parameters exist only within the scope of the function.

An argument is the actual value or expression provided to a function when it is called. Arguments are passed to the function and used in place of the corresponding parameters.

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