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 c) i2 ~5 {3 D$ i! }# A
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 Y+ l6 o e9 t* @- i9 _; r8 Q8 z" E
3. Same method if is not equal on 2nd try.