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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,bttvb( q: E+ Y+ t9 D
weigh A & B (ex. B heavier)tvb now,tvbnow,bttvb: i5 e5 M8 r% @
then weigh B & C (B & C same weight)tvb now,tvbnow,bttvb$ o4 O% S. ^2 @- ~: U0 v' v/ Q
to find which group has the weight difference and find out is it (A is lighter)tvb now,tvbnow,bttvb1 N( i: m: `+ ]; R  P3 w
heavier or lighter7 k; H' w& A% K/ O; \9 k2 [
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
+ F4 J1 f# x9 t) F* n* [  C5.39.217.77:8898measure 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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