Divide 3 groups first.
6 c4 b& n- R/ S4 o* p1 V公仔箱論壇i.e. 4 x 4 x 4.
6 Q1 b ^: w' O/ Z. J! N8 Gtvb now,tvbnow,bttvbWeight any 2 groups [1st]3 r9 n' x& W$ p. L5 L; b+ @* d
then you will know the heavier ball in which group.tvb now,tvbnow,bttvb$ m* X$ N( e1 D/ z6 l3 V
Weight any 2 balls in that group [2nd]
: n# O( r( T. G M. k; O! o- L公仔箱論壇then you will know the heavier ball in which 2 balls.tvb now,tvbnow,bttvb7 P' ]0 ]+ X+ H& [) w
Repeat again in remainders [3rd]5 |* o/ \" K1 y- c& R; N4 f1 J0 ~7 w1 `- ?
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
| 
