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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
0 m S5 A" l* v8 j" Q/ G3 M% u5.39.217.762. 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)
! e! {; I4 D1 \4 h; F" N3. Same method if is not equal on 2nd try. |
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