Divide 3 groups first.
& J$ N6 f" T$ Li.e. 4 x 4 x 4.5.39.217.77# L \" h3 |: @+ z+ S
Weight any 2 groups [1st]
% i5 z, P6 y3 _' {5.39.217.77then you will know the heavier ball in which group.5.39.217.775 ?( Z; E7 O. m7 O: f7 _1 E/ {& X
Weight any 2 balls in that group [2nd]5.39.217.77( z! ~8 d. F2 N
then you will know the heavier ball in which 2 balls.
+ R) q5 {$ o2 t0 E( b7 D5.39.217.77Repeat again in remainders [3rd]tvb now,tvbnow,bttvb/ f1 W7 ~# I6 Q1 Q/ h
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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