n=1的一些解决方案
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..2..1....0..2..1....0..1..0....0..1..1....0..2..2....0..0..1....0..0..1
..0..2..1....0..0..1....1..1..0....0..1..1....2..0..2....1..1..0....0..0..1
..0..0..0....2..2..2....1..1..0....0..0..1....0..1..1....0..0..1....2..0..2
..0..0..1....2..0..0....0..2..1....1..0..0....1..1..2....2..0..1....0..2..2
