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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C
: _0 P. R9 B$ U2 Y2 }8 t公仔箱論壇weigh A & B (ex. B heavier)
: x9 ?+ o+ A4 u& j$ rtvb now,tvbnow,bttvbthen weigh B & C (B & C same weight)8 @8 H# @6 w+ S/ l, M: C
to find which group has the weight difference and find out is it (A is lighter)
8 ^3 D' I7 z8 Oheavier or lighter
1 d% X' L3 o  T/ x* y6 g: b5.39.217.77:8898then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)5.39.217.77:8898  a8 E$ Y8 z6 W8 @* W' z
measure E vs F to find which 1 is lighter....
简单!!
easy
???
is it really tht hard?
thank you for your sharing!
???????????????
唔識
thx
;)) ;))
好難呀....
分成a,b,c三堆,分别为5,5,2三堆,先称a与b,若平衡,则中a中取一个与c中任一个称,就得到结果。若a与b不平衡,假设a略重,重a中随机取3个出来加上c中任一个,b中取3个出来加c中的任一个,若平衡,则a中剩余一个就为异常。若a仍重

哈哈

hv a look
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