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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" M$ k" `5 C0 E% i9 E9 \: m
共四堆
; t& E7 J6 X* Q1 q. G称两次得出异常的在那一堆,其轻重
" g# S9 ~; ^) S5 J% wTVBNOW 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。在异常的那一堆中在称一次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。6 F5 ^9 [8 m# ?3 l% G* O
就可以找到了
divde the 12 balls into 3 sets of 4.
0 E2 l  S  Q7 u; e2 j5.39.217.77weight any 2 sets.
9 v* U, K7 Z+ K+ ]9 x) n* j% q9 Z公仔箱論壇if the 2 sets are equal, then you know the heavy one is in the third
+ l; v2 S! _, xif one of the 2 is heavier, then the heavy one is in that set% e/ ~2 x' h$ Y5 m' Z
then divide the 4 balls into 2.5.39.217.773 w, `5 u, b: S  ]
weigh them
/ N; f* s* s8 N5 w' `# _/ x" [5.39.217.77and divide the heavier into 1
+ o6 ~) C5 A8 i7 f! J7 G$ M5.39.217.77and weight them.公仔箱論壇0 A1 C2 M* E5 K2 r/ N$ d
3 x weighing and get the ans.  ; }+ m% ^  a  y$ d, H- R
in less than 15 secs.
1. 6 aside and weight.
6 K) ]7 Y4 G5 ^. w5 }( z2. heavier side from (1), 3 aside weight again.
7 T- W  A9 y! W6 S6 `: ntvb now,tvbnow,bttvb3. 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.
: h+ ^, E+ ]' s0 }. ~% }( @: M& v% E5 ETVBNOW 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。9 c! {/ ]. W+ v" |# q: V" p) c
but i have a question. 重量異常 can be heavier or lighter.... so......
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