Divide 3 groups first.
: I, W/ S. u' W3 x% d3 j* f* mi.e. 4 x 4 x 4.
: f8 E( ~1 k, H0 j# |; m公仔箱論壇Weight any 2 groups [1st]
( u& H" A$ r$ U" G5 w$ Othen you will know the heavier ball in which group.
7 E! @$ ~! o8 H! d& f公仔箱論壇Weight any 2 balls in that group [2nd]6 s, m! a M$ @) M9 x
then you will know the heavier ball in which 2 balls.
/ l% P2 @ s. W% L0 S! Z$ M& Z公仔箱論壇Repeat again in remainders [3rd]
f- R8 T1 `5 Y' B$ A& pGot the heavier ball. |
發表於 2009-7-2 12:48 PM
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