There is 12 balls.. divide them into piles of 4
I! M& G. R1 NTVBNOW 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。so 3 groups for 4..name is A,B,C公仔箱論壇( }5 H ?, S; a4 m* n; K$ {3 Z
case 1: tvb now,tvbnow,bttvb) |" m* l% T5 `5 ^% q; f4 s {
measure A -- B 公仔箱論壇9 o, O, U6 ^% g: }
A or B is heavier
7 P G6 W) ~9 m* y! P1 Adivide that group into 2 by 2
- C- E' t. c. G, N* y( }1 I4 \9 nthen divide heavier group into 1 by 17 f) ^. D3 e. S( v( P% y' b0 ]
/ W, D, Z! t- M4 l* c) ^6 ?tvb now,tvbnow,bttvbcase 2:
! ^+ ]5 \7 H2 Q0 Y- z公仔箱論壇A and B is the same.. therefore C has the heavier ball, f3 [+ l7 q" {) k6 S/ ~
divide C into 2 by 2
5 a2 @# _* L3 Y7 ^$ X* c; K lthen divide heavier group into 1 by 1..
6 m- j9 l, h5 s& g" R$ K公仔箱論壇
* x, {: Z% M1 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。got it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
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