check o1, o4, o8. o1-o8 and o1-o4 > 1 and o4-o8 < 1,
回答: n=8,I got it.I made mestakes as too much number,you check my sec
由 jinjing
于 2011-08-09 17:13:59
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you are right.thx.
-jinjing-
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08/09/2011 postreply
18:09:58