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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C
; {# g$ Z: S) i, m+ L' O& p5 |weigh A & B (ex. B heavier); A# R  W1 l0 P; z* Z
then weigh B & C (B & C same weight)
; B. _9 U6 V9 y) J5.39.217.76to find which group has the weight difference and find out is it (A is lighter)
0 l; a  ]: i/ s8 j" Ltvb now,tvbnow,bttvbheavier or lighter
" h+ _% X3 y5 @2 F  _2 W  r8 othen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)6 w" u6 @) r/ R5 P6 E
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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