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
  H. l9 a- Q2 }, T, l共四堆
9 g' P4 \9 e  n3 ?" n公仔箱論壇称两次得出异常的在那一堆,其轻重
: u2 ~$ P  C! N7 _. Q8 [' r4 @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。在异常的那一堆中在称一次
# A7 o% ^5 z: e: _4 g0 \6 dtvb now,tvbnow,bttvb就可以找到了
divde the 12 balls into 3 sets of 4.
: F8 J3 u; _, R( @weight any 2 sets.
5 F( T0 L8 Q2 d5 h( W  Utvb now,tvbnow,bttvbif the 2 sets are equal, then you know the heavy one is in the third公仔箱論壇- q/ H4 z& H$ e7 Y$ h; q
if one of the 2 is heavier, then the heavy one is in that setTVBNOW 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。; P% k( h! o9 A. C
then divide the 4 balls into 2.
/ q1 J( F0 R- u5 I" Y( P) u公仔箱論壇weigh them
) Z! w7 I7 i2 U2 \/ v* N公仔箱論壇and divide the heavier into 16 l6 m5 N3 ~5 w7 q' e+ Q: X
and weight them.
8 k/ g# _- |2 I5.39.217.763 x weighing and get the ans.  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。; Y: l  |) v; z/ J
in less than 15 secs.
1. 6 aside and weight.- _$ ?& Y: L5 f: B
2. heavier side from (1), 3 aside weight again.
6 V; N; a6 Y; ^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.
, T9 `  A; D2 c! V6 Otvb now,tvbnow,bttvb
/ m4 W, [: T( P3 U4 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。but i have a question. 重量異常 can be heavier or lighter.... so......
返回列表