CPP Calculator

A console based calculator I wrote using C++.

Example

Welcome to my calculator program!
(n): 40
(+|-|*|/|q): *
(n): 2
Number: 80
(+|-|*|/|q): /
(n): 4
Number: 20
(+|-|*|/|q): +
(n): 4
Number: 24
(+|-|*|/|q): -
(n): 5
Number: 19
(+|-|*|/|q): /
(n): 0
Error: divide by zero exception.
Number: 19
(+|-|*|/|q): q
Thanks for using my calculator program, goodbye!