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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C  Q! q3 C/ e0 w$ A4 |1 O" S
weigh A & B (ex. B heavier)tvb now,tvbnow,bttvb2 Y& b. V3 l) S( H  S
then weigh B & C (B & C same weight), U0 p9 P0 C* g5 n+ N7 ^9 s
to find which group has the weight difference and find out is it (A is lighter)
) Q+ y8 L4 F" Kheavier or lighter0 J9 L. w4 f) S" k. a
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)tvb now,tvbnow,bttvb( V: y9 h: E) ?& Y1 F
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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