1. 1st divide to half take the heavier out % k1 A* g; X' h( @公仔箱論壇2. 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. a. E# z1 T! [1 G/ N
3. Same method if is not equal on 2nd try.