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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
" t1 [" r* ^$ t公仔箱論壇共四堆
) Z# z8 y& l" K& p! B称两次得出异常的在那一堆,其轻重
6 M# c9 v" n) G# p2 G6 ?tvb now,tvbnow,bttvb在异常的那一堆中在称一次
7 `7 H# Q0 P1 Stvb now,tvbnow,bttvb就可以找到了
divde the 12 balls into 3 sets of 4.
# C( B2 Q' k% a" O, ^tvb now,tvbnow,bttvbweight any 2 sets.
7 ?9 @% r: {, O; P! X3 ztvb now,tvbnow,bttvbif the 2 sets are equal, then you know the heavy one is in the thirdTVBNOW 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 f- s( z4 w; {- E7 c
if one of the 2 is heavier, then the heavy one is in that set
5 X0 o" r( N$ c8 q/ {/ {- R% ?1 ptvb now,tvbnow,bttvbthen divide the 4 balls into 2.tvb now,tvbnow,bttvb4 r1 h" @+ H' h. B5 X6 ]
weigh them
) Y4 A! S2 g1 a+ Btvboxnow.comand divide the heavier into 1tvboxnow.com6 s9 K( {0 x6 N% p6 X5 `
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。" O7 b2 Y- ~9 `" H
3 x weighing and get the ans.  tvboxnow.com" N  i  @7 @4 ]* q1 g
in less than 15 secs.
1. 6 aside and weight.
2 b5 I5 J6 k+ }5 z) ]* L5 htvboxnow.com2. heavier side from (1), 3 aside weight again.
" d: n0 k' ^1 {5 l2 f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. 公仔箱論壇$ ]$ w  E- L6 A9 O9 |
' i, k" _, G. ~. d" U3 X
but i have a question. 重量異常 can be heavier or lighter.... so......
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