first, compare 6 and another 6. they must have difference. tvb now,tvbnow,bttvb" K$ O$ `+ M2 i0 x% x! G
second, divide those 6 heavier one into two, each has 3. u will find difference again.tvb now,tvbnow,bttvb" o v0 M( ^8 a: H$ l) ^* k- D* }% a
third time, if u put 2 and they are equal, u will know the different one.
3 I1 K' L' {5 g n4 f公仔箱論壇so easy.... |