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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
4 {6 L+ K  \( S. r$ m共四堆
( a! h$ _6 l& i5.39.217.77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。. S# }$ ?. N) c5 x0 r( s0 Q5 j9 P
在异常的那一堆中在称一次
( J/ j. a3 D4 v# H6 |% |7 J! Y; o就可以找到了
divde the 12 balls into 3 sets of 4. $ p2 G0 _' B; X% l/ ?3 w
weight any 2 sets.
8 t+ m6 L: P! Q) e! x  R3 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。if the 2 sets are equal, then you know the heavy one is in the third
5 K) u) }9 l/ o2 Z5.39.217.77if one of the 2 is heavier, then the heavy one is in that set$ G1 P+ U. U3 q
then divide the 4 balls into 2.
' h/ w+ }( j7 V0 |1 G* ]公仔箱論壇weigh them0 p) s' `8 r6 ?& u" c$ ?( P
and divide the heavier into 1tvb now,tvbnow,bttvb1 ^9 V7 {9 A( v, [8 O5 F
and weight them.
: A5 R7 e4 p/ m9 }; W公仔箱論壇3 x weighing and get the ans.  
: K: Q: ~+ }7 u3 S$ A$ g) L/ Uin less than 15 secs.
1. 6 aside and weight.
( {6 e9 _& u+ \% K8 y" n; V2. heavier side from (1), 3 aside weight again.
0 m: @/ K9 E; q% H! Z3 Q, ]公仔箱論壇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.
3 d* {1 T( ]6 u- |3 ]% r8 ITVBNOW 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。tvb now,tvbnow,bttvb) l0 M0 _" p) t
but i have a question. 重量異常 can be heavier or lighter.... so......
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