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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C公仔箱論壇2 Y. L1 N8 J4 J4 K/ ?
weigh A & B (ex. B heavier)
3 l" Z5 b" L- a( vtvb now,tvbnow,bttvbthen weigh B & C (B & C same weight)公仔箱論壇$ }. M% R2 O7 N9 {0 \0 R' c1 s
to find which group has the weight difference and find out is it (A is lighter)tvb now,tvbnow,bttvb; z7 j& W; ^9 M$ c; ?% B: J
heavier or lightertvb now,tvbnow,bttvb# b% f0 b  G3 f5 _" M
then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)
7 F8 p. H; ]' w$ N& b8 j% I1 T; rmeasure 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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