Divide 3 groups first.
5 A! G6 t; V4 E8 z: wtvb now,tvbnow,bttvbi.e. 4 x 4 x 4.
5 f# H5 O$ w7 f. P公仔箱論壇Weight any 2 groups [1st]5.39.217.77. O. }4 N' |9 d$ @. X3 q6 K* q
then you will know the heavier ball in which group.
2 [5 J1 C7 ~7 c: d5.39.217.77Weight any 2 balls in that group [2nd]7 i: R2 q6 x; u8 ^$ `! z1 q5 C
then you will know the heavier ball in which 2 balls.
4 c' {: N2 Z( I; z公仔箱論壇Repeat again in remainders [3rd]公仔箱論壇! _# q" W3 E1 |( d& V% ~
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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