this is too easy!!
' C! B( O( g- y, }3 y( S+ m. L
8 U5 H; y. e7 ?3 B1. put 6 at each side.. take the one side which is heavier
; }1 Z8 V* h0 H t: [9 u0 S' g2. put 3 at each side.. also take the heavier side
, f$ u& Q( v! ]* @公仔箱論壇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
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