There is 12 balls.. divide them into piles of 4
. p$ d! k" k" q8 _1 C0 E公仔箱論壇so 3 groups for 4..name is A,B,C
- f6 A0 {# h+ b' H$ I% H: ?case 1:
j. _/ I3 s, n! e1 _1 v' Gmeasure A -- B
' t! ?2 d" a, H4 H; i# RA or B is heavier 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。& t& ^, ~' W9 A7 n
divide that group into 2 by 2$ ~' i$ t3 g' E+ J* @: G
then divide heavier group into 1 by 1
! Z1 A" k* C5 M1 s公仔箱論壇
) a8 s1 T5 ?0 `1 z4 K9 S公仔箱論壇case 2:5.39.217.77 N$ a: y' b( Z- m$ p% B0 ~7 G- i% k
A and B is the same.. therefore C has the heavier ball
3 N+ v) A7 R% H! b, j3 ?, s$ z! K9 }divide C into 2 by 2
7 L# p! D& c1 ~/ c! m5.39.217.77then divide heavier group into 1 by 1..5.39.217.77. G' ~( ^. ^* y' Q" Y$ U5 V- p5 j( A
7 y' O! b2 f) e9 Q
got it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
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