Creating Maze

I am studying C++ programing and i have a assignment which create a maze, which is a two dimensional array of size entered by user and the density also entered by user density is percentage of obstacle in the array.

one mouse enter from the bottom of the array from center and it should come out from the top center.

i don't know how to work on it.

our proffesor give us some built in functions like gotoxy(), clrscr(), delay(unsigned int millisec),

If any one could help me out that would be great for me.

if any one know then i can send you the whole program pdf files.

thank you for your time

Is the maze constant or does it have to randomly generate one, and similarily, does the mouse follow a certain path or do you have to write a function for it to solve the maze?