There is 12 balls.. divide them into piles of 4" {/ _- e2 P3 J* Q5 I( Y) U
so 3 groups for 4..name is A,B,C
; j4 I% Z4 W1 g& ], O公仔箱論壇case 1: 5.39.217.76; w$ C4 P, J3 n
measure A -- B
* W1 _& ~1 H) }- f3 h% H+ R/ A+ k; ~A or B is heavier 5 h% G5 K, v7 o) I% ? Y
divide that group into 2 by 2TVBNOW 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。8 }( W, K0 F4 t8 S0 ]' ?
then divide heavier group into 1 by 1
4 |7 g5 W# s3 [8 k( R公仔箱論壇" t1 s- K2 m, S! R/ r2 T6 u
case 2: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。6 l5 S) q9 v) P5 o
A and B is the same.. therefore C has the heavier ball公仔箱論壇" s8 h: T1 l, p$ F1 c2 O$ ^
divide C into 2 by 2
* ?) a, E3 k+ R& K! ~7 q& V4 B& g. p5.39.217.76then divide heavier group into 1 by 1..5 y- g$ @9 u) t8 s
tvb now,tvbnow,bttvb# {6 V) A9 B1 i9 @) n& F
got it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
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