first, compare 6 and another 6. they must have difference. tvb now,tvbnow,bttvb5 ^4 c2 b* O) k0 D* K4 c, R8 F
second, divide those 6 heavier one into two, each has 3. u will find difference again.! z/ x" b! k7 z3 F+ f
third time, if u put 2 and they are equal, u will know the different one.tvb now,tvbnow,bttvb% F# _1 A! }; l7 U! P
so easy.... |