返回列表 回復 發帖
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
- O3 w# D0 G7 g7 U0 Ltvb now,tvbnow,bttvb共四堆
) t$ ?2 T) o$ g) e# F6 P0 i公仔箱論壇称两次得出异常的在那一堆,其轻重tvb now,tvbnow,bttvb( z& ]- t6 `, V. J
在异常的那一堆中在称一次' X  E( j( }4 S0 Y, i4 m
就可以找到了
divde the 12 balls into 3 sets of 4.
( m' \" C+ l! j" Y- C  XTVBNOW 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。weight any 2 sets.tvb now,tvbnow,bttvb/ U' B$ r" v/ b- T4 a
if the 2 sets are equal, then you know the heavy one is in the third
% q4 j( |+ ~9 B& pTVBNOW 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 one of the 2 is heavier, then the heavy one is in that setos.tvboxnow.com; i! Y- e3 f2 A$ U, [$ ^
then divide the 4 balls into 2.
+ O. p' X! f' y8 ~tvb now,tvbnow,bttvbweigh them: ~' p6 R" F. e  K
and divide the heavier into 1
- S4 H/ C7 P- q. X: vos.tvboxnow.comand weight them.tvb now,tvbnow,bttvb" B6 s; v  [9 Z; C
3 x weighing and get the ans.  
- _" @: _% w5 U- Ein less than 15 secs.
1. 6 aside and weight.
$ q0 \, g/ O* |tvb now,tvbnow,bttvb2. heavier side from (1), 3 aside weight again.os.tvboxnow.com' L1 W, O2 H% q* l! f- k) ^
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.
/ a# z8 w" Y7 [7 v' Q公仔箱論壇- L9 u  x3 {3 ?0 s
but i have a question. 重量異常 can be heavier or lighter.... so......
返回列表