kfflee

原帖由 stupid818 於 2008-4-17 11:42 PM 發表 ; t% e5 t6 W) m" G0 w" E+ h  I
first, compare 6 and another 6. they must have difference. 5.39.217.775 N% E" ^0 p- C3 Q( Y- i2 O& [3 H
second, divide those 6 heavier one into two, each has 3. u will find difference again.
- I! U9 R3 O, Z. P0 r. Ythird time, if u put 2 and they are equal, u will kno ...

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but 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
1 Y$ K' s/ j" e" \5.39.217.77
2 u6 Q* J+ \) D. m5.39.217.77用了... 大約兩三小時
: n9 x2 \5 i8 ytvb now,tvbnow,bttvb3 `; c/ G( Z* b$ W5 X' O
[ 本帖最後由 kfflee 於 2008-4-21 02:15 PM 編輯 ]