Divide 3 groups first.
( x$ R1 {; e" A+ O6 yi.e. 4 x 4 x 4.9 d) @6 i2 o; s8 U# P
Weight any 2 groups [1st]% m- u% V9 n" M- E" f
then you will know the heavier ball in which group.9 W" \7 B" f/ @
Weight any 2 balls in that group [2nd]TVBNOW 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。/ g& s! G$ e$ e! V6 z
then you will know the heavier ball in which 2 balls.
- p, T0 w3 Y( K3 n5.39.217.76Repeat again in remainders [3rd]
6 U% ~" F9 f2 _- z6 J3 W5.39.217.76Got the heavier ball. |
發表於 2009-7-2 12:48 PM
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