def middle(array,row,column,point,res): x=point[0] y=point[1] res.append((x,y)) if x==row-1 and y==column-1: return res if x <row-1 and array[x+1][y]==0: flag=middle(array,row,column,(x+1,y),res) if(not flag): res.pop() else: retur...