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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
& X/ z3 v$ }3 J% s共四堆www3.tvboxnow.com8 ?+ p' _, x# B& c! q8 s; D
称两次得出异常的在那一堆,其轻重
* U) @3 r9 @8 J; X, V. E4 dTVBNOW 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: B' f$ N' R, N7 h# j9 g3 w" ^
就可以找到了
divde the 12 balls into 3 sets of 4. 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。0 Y8 m6 U$ ^6 z7 Q) |: A! i
weight any 2 sets.公仔箱論壇* g" X, @7 Q' l
if the 2 sets are equal, then you know the heavy one is in the thirdtvb now,tvbnow,bttvb4 ^+ \6 s' L- `. V- x
if one of the 2 is heavier, then the heavy one is in that set
) h  ]) h6 {! ~/ ^# J+ ?then divide the 4 balls into 2.
) B& M8 m% @$ Xweigh themwww3.tvboxnow.com5 _3 N% `/ F# N. T5 @) T5 Y% R
and divide the heavier into 1
* {# I  _6 h; {7 H! z$ 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。and weight them.公仔箱論壇0 ]1 @% ]4 H! s# A7 b! V
3 x weighing and get the ans.  , [/ @/ G. p2 B0 t
in less than 15 secs.
1. 6 aside and weight.: v$ J5 i1 F9 o
2. heavier side from (1), 3 aside weight again.
( M* Q7 Z2 h" t% R  R8 ]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. www3.tvboxnow.com- l" A3 T' Y, ?; ~5 c+ {
tvb now,tvbnow,bttvb! n# J5 |7 \; x* N
but i have a question. 重量異常 can be heavier or lighter.... so......
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