朋友给我出了一道数学题,横竖九个格子,填入1-9,让它横竖每行都是1-9九个数而不重复!而其中有几个数字
1.()(7)()()(1)(5)()()()
2.()()(4)()()()(3)()(1)
3.()(9)()()(3)()()(6)()
4.(8)()()(6)()(3)()()()
5.(2)()(6)()()()(9)()(8)
6.()()()(1)()(8)()()(4)
7.()(1)()()(6)()()(9)()
8.(9)()(2)()()()(4)()()
9.()()()(4)(8)()()(2)()