There is 12 balls.. divide them into piles of 4
* \; w9 ]( `% a9 pso 3 groups for 4..name is A,B,C9 k; P# S4 V8 b- s, _
case 1: 公仔箱論壇- ~' t4 y2 k. h7 a7 ?! h
measure A -- B
& z8 `5 z: S* u ~- {: J( Wwww2.tvboxnow.comA or B is heavier
* P% W9 n4 f% j- l. mtvb now,tvbnow,bttvbdivide that group into 2 by 2公仔箱論壇) ~7 n5 o5 x( O' b. g+ x
then divide heavier group into 1 by 1
6 ~3 W7 W* l! t1 h% ^* D公仔箱論壇
, o, B7 V5 i* D+ B1 rwww2.tvboxnow.comcase 2:
8 r2 Y$ N" ^0 A* C$ bA and B is the same.. therefore C has the heavier balltvb now,tvbnow,bttvb" l4 a# t3 Q2 Y2 f4 F% q5 C
divide C into 2 by 2公仔箱論壇- `( _$ K. m7 A% R; I* V4 m
then divide heavier group into 1 by 1..
! f& Q7 N& c2 y( k' [6 jtvb now,tvbnow,bttvb# A2 L: _# q% W( [
got it in 30 seconds.. not so hard -.-' |
發表於 2006-12-8 01:06 PM
| 