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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B Ctvb now,tvbnow,bttvb2 `3 O& D( n% T9 k) o- h
weigh A & B (ex. B heavier)
6 }" R& W& C- t6 Ethen weigh B & C (B & C same weight)
6 X; o* c9 |' C: q( D* ito find which group has the weight difference and find out is it (A is lighter)
8 K8 C1 _$ B0 p+ m9 |公仔箱論壇heavier or lighter
. m, @2 e9 U8 S: s" Nthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
- o( ^/ z' A. x5 H( P  }8 `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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