n=4的一些解
..0..0..1....0..0..0....0..0..0....1..0..0....0..0..0....1..2..2....0..0..0
..0..0..1....1..1..0....0..4..0....1..0..0....1..1..0....1..2..2....2..2..0
..0..2..2....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....2..2..0
..0..2..2....1..1..0....1..1..0....0..0..0....0..1..1....0..1..1....0..1..1
|