INIT_QUADTREE(5,1)
CREATE_RECTANGLE(C3PO,6,6,3,3)
CREATE_RECTANGLE(U3PO,16,16,8,8)
TRACE ON
DELETE_RECTANGLE(C3PO)
DELETE_POINT(16,16)
TRACE OFF
DISPLAY()
INSERT(C3PO)
DISPLAY()
TRACE ON
DELETE_RECTANGLE(C3PO)
TRACE OFF
DISPLAY()
INSERT(U3PO)
DISPLAY()
TRACE ON
DELETE_POINT(16,16)
TRACE OFF
DISPLAY()