Create another main file called shape$\_$main.cpp$.$ In this one, the user will be prompted to choose a rectangle or a triangle. Followed by a prompt asking for height and width if it is a rectangle, base instead of width if it is a triangle. Then, it will return the area for the chosen shape and dimensions.

Create a new triangle.hpp and triangle.cpp that supports the functionality of shape$\_$main.cpp$.$ Compile the code into an executable called shape$\_$area$\_$calculator

To gain full credit, your project should feature the following:

The repository should have the appropriate files from part $1$ and the submission $($excluding executables$).$

shape$\_$main.cpp should perform input validation and reject invalid values $($for example, less than $0$ or letters for dimension$).$