Divide 3 groups first." `* D- u# Z& R) o5 _% l9 m' ?
i.e. 4 x 4 x 4.
`) {$ d7 [, I: A: w4 Q2 ptvb now,tvbnow,bttvbWeight any 2 groups [1st]5.39.217.772 {; g! a0 u3 J }& d" ~9 y
then you will know the heavier ball in which group.5.39.217.771 W/ s/ f6 }0 L7 M
Weight any 2 balls in that group [2nd]7 y) ?3 D# f9 M4 H* K$ t) C
then you will know the heavier ball in which 2 balls.5.39.217.771 n9 c, G" z8 ^4 ?3 ^& q: G6 w2 q3 V! O
Repeat again in remainders [3rd]
& k! I* @- u1 \" H7 N6 [5.39.217.77Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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