There is 12 balls.. divide them into piles of 4
9 e! f- `' S8 q; z5 Z公仔箱論壇so 3 groups for 4..name is A,B,C
. [% j5 k9 f! E7 O5.39.217.76case 1:
9 R" ], Q4 x$ Q/ ?- s' A公仔箱論壇measure A -- B
^7 p/ p' I% s1 V5 x" L3 a' p2 h$ E公仔箱論壇A or B is heavier
# d2 Y; K9 I6 c* e* {& ~divide that group into 2 by 2
6 T, P& D. a! N- d3 @公仔箱論壇then divide heavier group into 1 by 1公仔箱論壇* [" V: T* @2 K d+ @0 c
! z+ C0 C# T5 Z0 H6 ]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。case 2: e& B6 w- ~5 t& F* ~1 s0 K F
A and B is the same.. therefore C has the heavier ball
) y x/ A6 ~7 I }& H$ B4 B5.39.217.76divide C into 2 by 2tvb now,tvbnow,bttvb( y' L4 M: c0 d9 q# Q0 @
then divide heavier group into 1 by 1..
; v: k) t: l" J3 r公仔箱論壇5.39.217.763 \) m; H6 I5 k; |1 S, |9 Z
got it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
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