somebody show some tests to me plz

if matrix 2*3
 ________
|__|__|__|
|__|__|__|
 and 1 line and 1 column is zero =>
 ________
|_#|_#|_#|
|_#|__|__| => if in empty cell is 0
=> 2 column is zero => l>1 => all empty cell is 1 => 1 variant