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。' i6 x( l- ~2 x3 [# \2 S3 A$ F; H1 }7 z
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) ; ?, \1 j$ X0 a; @3 n3 y3. Same method if is not equal on 2nd try.