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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C
/ }8 k, Z7 F" Z5 b$ [weigh A & B (ex. B heavier)0 m, t6 F2 S, k
then weigh B & C (B & C same weight)
( k8 b' X  X% _1 X  g# D+ uTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。to find which group has the weight difference and find out is it (A is lighter)
5 Y; }6 b% X# \7 o! k4 \+ e4 r/ rheavier or lighter
/ s5 d& Z3 j7 G( C/ z0 j5.39.217.76then measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)5.39.217.763 [  s; O4 j+ p2 W" B% d
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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