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1#
發表於 2011-11-4 12:49 AM
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1. 1st divide to half take the heavier out
. R4 w" j) M8 T2 W2. 2nd take 4 balls out of 5 divide 2 groups to get the heavier out. (if is equal thn the remain is the one u looking for)5.39.217.77:8898, S1 v4 R' i; u6 n
3. Same method if is not equal on 2nd try. |
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