n=5的一些解
..2..0....3..2....0..0....0..0....0..2....2..2....3..2....4..2....2..0....3..0
..0..4....2..1....3..2....0..3....0..4....2..1....3..0....3..0....4..2....0..2
..2..1....2..2....0..0....4..2....2..1....3..2....4..4....2..4....4..1....2..0
..3..2....2..2....3..2....4..3....2..0....2..2....4..4....3..1....0..3....4..2
..4..4....2..0....0..4....0..3....4..2....2..2....4..2....2..4....2..1....2..1