$(5$ points$)$ Define a function called calculateDistance that takes two parameters, each of type CartesianCoordinate$*($i$.$e$.,$ pointer to CartesianCoordinate$)$ and returns the distance between the two given CartesianCoordinate points. As you may recall, the formula for calculating the distance between two CartesianCoordinate points, say $p1(x1,y1)$ and $p2(x2,y2)$ is:

$\sqrt[\phantom{2}]{(x2-x1{)}^2+(y2-y1{)}^2}$

Note: You may use the sart$()$ function available in the library