Divide 3 groups first.
. u$ g( N) o$ n+ h Z5 i6 ai.e. 4 x 4 x 4.公仔箱論壇3 o: } g* Q8 H; L$ W" j8 G9 p8 M
Weight any 2 groups [1st]& j" \ C6 }6 J7 K/ E9 s' N! F
then you will know the heavier ball in which group.tvb now,tvbnow,bttvb2 e; v/ p( s- D7 L
Weight any 2 balls in that group [2nd]
% s& c/ Y8 ~9 `/ z. f4 E# v8 P5.39.217.76then you will know the heavier ball in which 2 balls.
2 \/ r+ G% t" ~Repeat again in remainders [3rd]( b' J |9 {+ V; X" @
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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