i found the ans in 30 mins but dont know correct or not?
: R3 C' U6 O) c1 d* y: F' jans is too long! but concepts are something like that:5 i0 z! ?( R: V# |/ f1 g
seprate 4 groups 3 balls in one group!
( j& D' A, u& r8 VTVBNOW 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。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!
z+ H6 D2 n, ktvb now,tvbnow,bttvbthe last part is 1ball vs 1ball! something like that |