这个题目有点难...
所有跟帖:
•
ah...? I thought it is very simple.....
-idiot94-
♂
(0 bytes)
()
12/30/2006 postreply
07:47:22
•
yep, you are right :) I thought m, n must be positive :D.
-idiot94-
♂
(0 bytes)
()
12/30/2006 postreply
08:03:17