kfflee

原帖由 stupid818 於 2008-4-17 11:42 PM 發表 5 `% \) }1 e0 r: K4 \: T6 u
first, compare 6 and another 6. they must have difference. 公仔箱論壇( a# ^% n4 W& X9 Y
second, divide those 6 heavier one into two, each has 3. u will find difference again.
/ }" I8 ?/ e3 p/ P  L, Jtvb now,tvbnow,bttvbthird time, if u put 2 and they are equal, u will kno ...

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# \& M/ t4 I$ O% r% k; x( fbut the question has not defined whether the abnormal ball is heavier or ligher than normal ones ....

kfflee

終於想通了 , 但跟樓主答案不一樣的方法
+ `2 u6 Y8 K5 y$ s0 P% P" o' Q公仔箱論壇& J: J0 P' ]8 a: O6 S
用了... 大約兩三小時: S" o; h' d0 q- r) d

/ p$ s; j8 I& d  s# O5.39.217.76[ 本帖最後由 kfflee 於 2008-4-21 02:15 PM 編輯 ]