i found the ans in 30 mins but dont know correct or not?tvb now,tvbnow,bttvb3 _- c } N) f, B
ans is too long! but concepts are something like that:tvb now,tvbnow,bttvb i' d0 u: [5 [
seprate 4 groups 3 balls in one group! TVBNOW 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。9 d% T5 D w, |6 {) {; O
the important part is the 2nd times which need to find out the fake ball is heavier or lighter by use the normal ball that u find at the first time!tvb now,tvbnow,bttvb# O8 W/ M9 {) P) I
the last part is 1ball vs 1ball! something like that |