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答案!!!!!!!!!答案!!!!!!!!!!!答案!!!!!!!!!!!!!1
^:)^ >:D<
thx
let cc
not possible
不知道要怎麼做阿??
hao

the model answer is stupid

there got more simple way to do it, just read my way, the one i answered before
the
see 了
第一次,一边5个称,若质量没有异常就只称剩下的2个就知道异常的那个了;若有异常就把异常的那5个用一边2个称第二次,若没有异常就是剩下的那个异常了,若有异常就把异常的那2个再2一边1个称第三次就知道了
how?
先分3个一堆
; n% S9 s7 N5 V+ N* ktvb now,tvbnow,bttvb共四堆
  C7 `% ^6 m2 Rwww3.tvboxnow.com称两次得出异常的在那一堆,其轻重TVBNOW 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。% e$ e9 x( F9 p: k; `
在异常的那一堆中在称一次公仔箱論壇( j6 b, p7 y! S, M: N
就可以找到了
divde the 12 balls into 3 sets of 4.
% Y6 O0 A  }& 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。weight any 2 sets.
% x. P) J7 z# p' vtvb now,tvbnow,bttvbif the 2 sets are equal, then you know the heavy one is in the third
% y7 C3 C6 v- d; ~& U6 }if one of the 2 is heavier, then the heavy one is in that set
/ Z" j/ d4 \- S+ i, a% T! ~$ jthen divide the 4 balls into 2.TVBNOW 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。2 v! y8 r; P, m$ _. V3 D& u4 m
weigh them3 V+ F8 q3 |8 V' k
and divide the heavier into 1
" B/ T" E4 D. \# Cand weight them.公仔箱論壇. d: R# P/ k/ A$ w0 Q
3 x weighing and get the ans.  
9 y# R" O9 j4 D/ [& F1 Uwww3.tvboxnow.comin less than 15 secs.
1. 6 aside and weight.# B* x4 L- y5 K2 [
2. heavier side from (1), 3 aside weight again.# p  [# O& v. S+ y3 k! k  w' Y
3. heavier side from (2), take 2 out of 3 to weight. If equal weight the one not on the scale is the heavier one. else the heavier one on the scale is the odd one. 公仔箱論壇7 X2 E& P6 @# M& l
公仔箱論壇, R4 t" s3 ^' z+ h$ y
but i have a question. 重量異常 can be heavier or lighter.... so......
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