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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C
* e$ ^: l1 k/ x( p1 Q' Ytvb now,tvbnow,bttvbweigh A & B (ex. B heavier)tvb now,tvbnow,bttvb6 H  ^7 k5 q  L$ H$ m+ B
then weigh B & C (B & C same weight)0 C) z3 g& j3 `9 H1 k) l* D) D
to find which group has the weight difference and find out is it (A is lighter)
+ \; V% o! E/ K% I. G+ Uheavier or lighter5.39.217.76- ~% I8 O: m" ~
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)tvb now,tvbnow,bttvb+ z% x; s$ y6 Z9 x- e8 @
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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