Divide 3 groups first.
2 h; A) y/ H/ d1 t+ i公仔箱論壇i.e. 4 x 4 x 4.1 L: y P9 \$ h9 [8 J
Weight any 2 groups [1st]公仔箱論壇- j4 x) G* K; j) b, Z0 S) I
then you will know the heavier ball in which group.7 `7 _. C5 N0 h* T5 U8 y( S& d% @; ]
Weight any 2 balls in that group [2nd]公仔箱論壇$ J w' i( C0 I; n+ }$ Q
then you will know the heavier ball in which 2 balls.
9 z. M3 P# A$ c% ltvb now,tvbnow,bttvbRepeat again in remainders [3rd]
) T6 z# n1 f0 E F: [ T, FGot the heavier ball. |
發表於 2009-7-2 12:48 PM
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