kfflee

原帖由 stupid818 於 2008-4-17 11:42 PM 發表 tvb now,tvbnow,bttvb. x" N, w* B, q/ N" j
first, compare 6 and another 6. they must have difference.
: T& B+ R9 ]) l1 i公仔箱論壇second, divide those 6 heavier one into two, each has 3. u will find difference again.5.39.217.763 b" O" a6 s, t
third time, if u put 2 and they are equal, u will kno ...

公仔箱論壇$ v  R# U8 D; F& a+ v* C

, ?! M- S4 o$ c5.39.217.76but 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
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+ I' D! _1 j8 p5.39.217.76公仔箱論壇' {, c  I! j: ?+ j& c: r2 x
[ 本帖最後由 kfflee 於 2008-4-21 02:15 PM 編輯 ]