Divide 3 groups first.tvb now,tvbnow,bttvb4 Y6 d8 }* m$ G9 l
i.e. 4 x 4 x 4.
0 h) L! f2 T% Q; Y* SWeight any 2 groups [1st]公仔箱論壇7 e9 A# Q) d' m/ ?- j/ `5 [: y& S. j
then you will know the heavier ball in which group./ U. C3 K/ `8 f0 {+ p' A$ h4 Y
Weight any 2 balls in that group [2nd]5.39.217.76- f3 N+ F# S. i+ p" | a1 v& W
then you will know the heavier ball in which 2 balls.
' g: h$ y8 K& j+ g" q( u3 ]% stvb now,tvbnow,bttvbRepeat again in remainders [3rd]公仔箱論壇2 X9 ~, Q1 O( [" f/ V) z: B$ I
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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