this is too easy!!
. p$ L2 n/ [' c& _4 U% Vtvb now,tvbnow,bttvb
8 ^. R% _ u" N# U. Y# C公仔箱論壇1. put 6 at each side.. take the one side which is heavier
. [* ]- b) y5 ?* A" E公仔箱論壇2. put 3 at each side.. also take the heavier sidetvb now,tvbnow,bttvb) }' |# d) a: A( ]
3. put 1 at each side.. if the weight balance then the one not put inside is the heavy ball.. else the side which is heavier is the heavier ball.. |
發表於 2009-1-7 05:31 AM
| 
