Divide 3 groups first.
' N+ z. e: ]( [! e7 c) Dtvb now,tvbnow,bttvbi.e. 4 x 4 x 4." W Z0 |, f6 k* U
Weight any 2 groups [1st]
9 s" f& U. V) D+ L1 U C5.39.217.76then you will know the heavier ball in which group.
. J* I: C0 z9 c5 Z+ ~3 |5.39.217.76Weight any 2 balls in that group [2nd]- y$ M6 T; r# \& g7 x% C
then you will know the heavier ball in which 2 balls.8 T7 z) h7 f5 o" U4 @
Repeat again in remainders [3rd]tvb now,tvbnow,bttvb4 R9 g; @2 f4 ]0 T; N! k4 J
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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