There is 12 balls.. divide them into piles of 4
8 F: B& ~! x' U5 x" @7 I" L jtvb now,tvbnow,bttvbso 3 groups for 4..name is A,B,C
4 X2 c" h8 {1 T3 Z公仔箱論壇case 1: " L. v) G3 a/ v2 ]
measure A -- B
' ]7 H' [" W. @* ~6 ^) ?" z0 XA or B is heavier ' Y, A" c8 E0 C8 \0 E9 {
divide that group into 2 by 2
; }: X: w$ v9 V0 w9 y2 A" Ithen divide heavier group into 1 by 1
# j( ^3 D! s: Z# L1 S' Y
7 Z7 M9 }% h' d; s Bcase 2:6 Y( x9 {/ n; |4 w
A and B is the same.. therefore C has the heavier ball
5 R9 H$ v. M+ c, X2 }/ ^公仔箱論壇divide C into 2 by 28 S7 f- S$ t3 O0 ~ Y! l7 ~0 T& Z
then divide heavier group into 1 by 1..! L: c' ^. L2 z) U( w
; z7 ]7 r& _+ T" dTVBNOW 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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