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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C
7 u/ j5 L/ g- z- Y% o; [5.39.217.77:8898weigh A & B (ex. B heavier)
4 S* l4 O2 l5 e  m' I( L5 Athen weigh B & C (B & C same weight)
6 ]! g# L0 g: D) T- e" B2 I* x5.39.217.77:8898to find which group has the weight difference and find out is it (A is lighter)tvb now,tvbnow,bttvb" A1 e* j& W0 R) `  A: |
heavier or lighter
- n; S. Y$ c+ g% Q$ Z5 A公仔箱論壇then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)4 `* B# O/ g8 H% }9 O) ]  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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