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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C9 B6 Z8 E  E# v2 q6 x$ _0 Z
weigh A & B (ex. B heavier)公仔箱論壇! o! r0 T- A' N- h9 O  Y5 j
then weigh B & C (B & C same weight)
5 M" O! J* z$ i, Sto find which group has the weight difference and find out is it (A is lighter)4 g2 Q) ]- m9 g( P3 m" \9 S  m/ G7 V
heavier or lighter公仔箱論壇* x/ K" a6 I  q- h+ D$ K7 E. y
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
/ B* i  T9 a% y, t0 C+ h, M) J4 Ptvb now,tvbnow,bttvbmeasure 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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