4X5的一些解决方案
..0..2..0..0..0....0..1..3..0..2....1..1..0..0..2....1..2..2..0..0
..2..0..1..3..3....0..0..0..0..3....0..0..0..2..2....2..0..0..1..3
..0..0..2..2..2....0..0..0..2..0....0..0..0..0..1....0..0..2..1..0
..0..0..0..3..2....0..0..0..2..0....0..0..0..0..3....0..0..0..0..2
|