There is 12 balls.. divide them into piles of 4
1 ~4 [8 ]8 y* P+ _# U, Y+ 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。so 3 groups for 4..name is A,B,C2 ~, c! ^! @1 C' b# _! o
case 1: 7 b7 A: @1 D; z5 Z, S
measure A -- B
! l3 A% Y0 M7 B' P; `7 b5 Z: qTVBNOW 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。A or B is heavier
+ X9 o, G& D. B% Q0 X0 Z$ [& A5.39.217.76divide that group into 2 by 2
( ]4 w0 G8 U9 H4 N/ } Dthen divide heavier group into 1 by 1
* m! S4 h! X4 p6 y! ?( b4 k% O& E
9 A, F$ ^- ?: ucase 2:
- L3 ]2 Z5 S4 e8 M. }: \) q4 g2 U; U公仔箱論壇A and B is the same.. therefore C has the heavier ball
; X" u1 _3 y1 D7 y8 e公仔箱論壇divide C into 2 by 2
: R' B* J" C6 e I+ Q4 d( ^then divide heavier group into 1 by 1..
& _" l! l' F$ F+ F1 r! Z4 M5.39.217.76tvb now,tvbnow,bttvb( ~: Q& l. @0 y6 g( ^1 N
got it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
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