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好難呀......睇答案啦...哈哈
tvb now,tvbnow,bttvb9 P; ~! P5 l6 G6 p
呵呵 這題目以前做過了
( ^( f) k# l4 d公仔箱論壇不過忘記是多久做出來的
0 ]8 x8 p! Y. D' I: ~% O* s8 @3 w: btvb now,tvbnow,bttvb不過謝謝大大分享啊
9 g0 P, m6 @) m0 N. I8 x2 O公仔箱論壇推~
i also not so comfirm bout my ans.......so hope tat the ans i got nearly the same wit u
^:)^
THX
LET ME SEE ANSWER
haha get it la let me check check sin
有意思~睇下個答案先^~^
X( =((
it's a very good question!!!

回復第 1 帖由 MagicAndy 所發的帖子

divide it into pile and wait , then use the heavy side and divided into two pile and weight, and take out the heavy side which remain3 then take any two to weifht ,if both side even then the odd one is hte different one ,and if one side is heavier than the other ,then you know the answer.
see see

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let me see
first divide it into 3 groups... 4 for each group...公仔箱論壇( r- M, K$ B' M$ n5 ^* E/ B
den use 2 groups to test... if the weight is same... den throw away these 2 groups.. if not... use another 1 group to test with tat 2 groups... throw away the same weight groups..." z. d+ b& B. ~0 U/ v
den... left 4 balls...
* X3 U4 t% P3 ]2 q) _5.39.217.76when u use tat 3 groups to test... u oredi know it is heavier or not...
4 ^4 g# L" B+ W) {/ R0 ftvb now,tvbnow,bttvbso when testing these 4 balls... u juz nit 2 find out the heavier or lighter 1...5.39.217.76% l( @% g: m  D
take the heavier or lighter 1... throw away tat 2 normal ball...
! {) ~) d6 z" P公仔箱論壇den u juz nit 2 test the last 2 balls...
+ {7 U" m" \- `4 |: r; J5.39.217.76same for now... take the heavier or lighter 1...
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