朋友给我出了一道数学题,横竖九个格子,填入1-9,让它每行都是1-9九个数而不重复!
悬赏分:30-解决时间:2007-11-421:20
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!而其中有几个数字是固定的:
1.()()()()(8)(1)(5)()()
2.()(1)()()()(7)(2)(6)()
3.(7)(6)()()(5)()()()()
4.(5)(8)(4)(1)()(9)()()()
5.(9)()()()(6)()()()(8)
6.()()()(8)()(2)(9)(4)(1)
7.()()()(2)()()()(8)(5)
8.()()()(7)(9)(3)()(2)()
9.()()(2)(5)(1)()()()()