n=5的一些解
...0...............0...............0...............0...............0
..-4.-3...........-4.-4............4..4............3..1............2..1
..-6.-2.-5........-7.-3..0.........2..1..3.........3.-1.-1........-1..1..1
..-5.-5.-2.-4.....-4.-4.-1.-2......3..5..5..4......1..3..0.-4.....-3.-3.-1.-1
..-6.-4.-4.-5.-7..-5.-5.-2.-4.-3...2..2..1..5..8...2..3..0.-2.-2..-3.-1.-1..0..0
