Divide 3 groups first.os.tvboxnow.com. `- t* h9 F N# I$ g9 s9 b
i.e. 4 x 4 x 4.
8 _3 Y, V( h5 u! sWeight any 2 groups [1st]% S2 P/ ?6 t1 X1 v1 o: D
then you will know the heavier ball in which group.公仔箱論壇7 Q0 [9 \( L2 J# E) X8 P5 m
Weight any 2 balls in that group [2nd]
X1 z1 U0 \' k0 g1 i公仔箱論壇then you will know the heavier ball in which 2 balls.
( a- z9 f w/ Y& p公仔箱論壇Repeat again in remainders [3rd]公仔箱論壇7 U' k4 E w8 e' O8 Y% \
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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