Divide 3 groups first.tvb now,tvbnow,bttvb7 f& {4 j1 m, h( r
i.e. 4 x 4 x 4.
/ I# F! D! f5 M+ x2 v/ B公仔箱論壇Weight any 2 groups [1st]
+ h1 F$ [5 W; Dthen you will know the heavier ball in which group.
# u9 \2 E/ Z: R ?# O- ~7 H. {5.39.217.77:8898Weight any 2 balls in that group [2nd]
2 b! e+ }( w. e5.39.217.77:8898then you will know the heavier ball in which 2 balls.
% f) f5 i% g. R# _% WRepeat again in remainders [3rd]tvb now,tvbnow,bttvb6 y% @4 z) |% K* w* V, p5 f6 j
Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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