1. 1st divide to half take the heavier outTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。% P* V( c+ t4 e
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)
! k1 ~6 M* z& n4 a4 X- L0 T9 o& A7 Q3. Same method if is not equal on 2nd try. |