$1.$ Write a pseudo$-$code to show the auto cleaner to clean up the room shown below, you design program should be as clever as possible:

Assumptions:

$($i$)$ the rubbish and auto cleaner positions are randomly located. Make sure each movement of the auto$-$cleaner is a rational move.

$($ii$)$ Rubbish and Obstructive objects may randomly pop$-$up at anytime.

x $--$ they are walls

C $--$ auto cleaner

o $$ rubbish