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睇睇.. 完全唔識- -
lets try
take 4 balls as a group, 3 groups - A B C
( o) w( `  V: d% C5.39.217.76weigh A & B (ex. B heavier)
. I! ~$ b( `  i% ?( `' A" ntvb now,tvbnow,bttvbthen weigh B & C (B & C same weight)
* v7 |! B6 {$ I) J9 P' a. |- {" Ato find which group has the weight difference and find out is it (A is lighter)' e) E% b- G: ~- C! O8 l9 p# \
heavier or lighter
- f& [1 p: P% N! X; a1 ~# Pthen measure 2 vs 2 balls, EF vs GH, pick out the lighter group (EF lighter)tvb now,tvbnow,bttvb( P8 F' Q9 U. E3 |5 E6 F
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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