回复：有没有好办法？
jinjing
2012-01-06 17:03:28
( reads)
If we can have a lot of "secnod "s ,answer is 2009-1004=1005,...Otherwise,...2009-1005=4
So,005 or 004 is answer.
cma
2012-01-12 17:45:29回复：谢谢。