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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
% L: H8 S- T1 I' o* ~; z, Btvb now,tvbnow,bttvb共四堆
& j* J5 a) P( ~tvb now,tvbnow,bttvb称两次得出异常的在那一堆,其轻重
+ F; R* N% k: U0 _; w. P在异常的那一堆中在称一次
3 W' @1 P5 c! v* E% j% tTVBNOW 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。就可以找到了
divde the 12 balls into 3 sets of 4. 公仔箱論壇( ]! \- R+ i- f8 j
weight any 2 sets.
" _& P4 I. x2 p6 m7 ?" o5.39.217.76if the 2 sets are equal, then you know the heavy one is in the third& X" x9 w: n" i5 ?$ y' b: w7 E' P9 U& Y
if one of the 2 is heavier, then the heavy one is in that set
: o  ~3 t( z5 F+ `, R- ~7 |then divide the 4 balls into 2.tvb now,tvbnow,bttvb& r2 j8 C( v. q
weigh them
; s* o& p- u& ~& b* i3 k. c5 HTVBNOW 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。and divide the heavier into 1
( N. d& A) B) a& `* K公仔箱論壇and weight them.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。; Z5 O' {( }8 Q% i+ q
3 x weighing and get the ans.  
0 I. ], [- |5 p# R/ sin less than 15 secs.
1. 6 aside and weight.
- R8 G# \* r1 L) @公仔箱論壇2. heavier side from (1), 3 aside weight again.tvb now,tvbnow,bttvb4 Y8 z/ t, r  }' ^
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. - ^) i  w' v' p8 M
公仔箱論壇% m; T% |  N5 e' J. m' K* a
but i have a question. 重量異常 can be heavier or lighter.... so......
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