There is 12 balls.. divide them into piles of 4
) C: u! z+ c. @" X5 x# qtvb now,tvbnow,bttvbso 3 groups for 4..name is A,B,C. W3 q' o3 j, v* o' {
case 1:
3 u9 }; {# ^ v7 j3 ?! c+ U2 Qmeasure A -- B
. m6 z) C7 t. I, e6 y* x1 E7 ^) mA or B is heavier
6 Y# q! H [2 S- [0 I5.39.217.77divide that group into 2 by 2
- T) q+ [! C; v5 V( z* NTVBNOW 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。then divide heavier group into 1 by 1" O7 ^1 A7 u1 d8 F# T/ [
, }) I( x2 q1 g8 mTVBNOW 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:
4 G3 y. U6 q) z4 f8 [1 ~( utvb now,tvbnow,bttvbA and B is the same.. therefore C has the heavier ball
2 A- n8 l9 i* t/ udivide C into 2 by 2
& I% _+ h7 Y! K: A" k0 nTVBNOW 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。then divide heavier group into 1 by 1..0 |1 v3 \' G4 m6 H+ ?
$ r* Z: W8 M$ Z# O" N: P5.39.217.77got it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
| 