There is 12 balls.. divide them into piles of 4
) T6 A. V. g) w% [! k8 e# |0 Lso 3 groups for 4..name is A,B,C
) X4 E, r: c+ k" b! K9 R: Z3 UTVBNOW 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。case 1: 公仔箱論壇6 j4 C Y2 Z) @9 y
measure A -- B
% i1 _$ ^# ?+ }; t* A8 y0 g( bA or B is heavier
# O) s$ _) k6 `+ Gdivide that group into 2 by 23 a% q6 j: u2 Z3 O" w
then divide heavier group into 1 by 1公仔箱論壇3 e' L6 |8 Z6 U! o1 F( K
- ]- L l$ L3 G% |case 2:tvb now,tvbnow,bttvb+ D: ]; o7 s2 {7 G" Y
A and B is the same.. therefore C has the heavier ball
! K( ~4 E0 ?# r+ ETVBNOW 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。divide C into 2 by 2tvb now,tvbnow,bttvb% D3 l- q" V9 b$ T( l j/ b
then divide heavier group into 1 by 1..
# n' m8 B( x9 M! R! \8 v$ z2 O公仔箱論壇) P- q+ C( X+ X+ G* n$ k0 h
got it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
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