You've been clarified that X is integer.
And I wonder, whether the position of the station should only be integer too.
I mean, if B is in 2 light-years north of A, there are at most 1 station between A and B? Or there could be infinite many stations?

Thanks

• Re:about the position of the station (389) SgHao 2006-08-27 14:40:38
  • i don't think this matters (123) frkstyc 2006-08-27 14:46:04
    • Re:i don't think this matters (274) SgHao 2006-08-27 14:50:17
      • but your data set doesn't follow the input specification... (300) frkstyc 2006-08-27 14:56:02
        • Re:but your data set doesn't follow the input specification... (416) SgHao 2006-08-27 14:58:40
          • i believe the statement has made it clear. it's unreliable. (146) frkstyc 2006-08-27 15:19:42
            • I hope to know why it's unreliable? (0) jibee 2009-07-29 17:10:37
          • 是啊,我也是被这个问题困扰,不敢下手做这题 (23) smallbox 2009-07-11 23:22:18
        • check this case(+) (40) Rainer 2006-08-27 15:00:55
          • please read the statement (54) frkstyc 2006-08-27 15:02:09
            • Re:please read the statement (121) SgHao 2006-08-27 15:18:48