i find one solution that is similar公仔箱論壇6 Q9 O/ a9 B: q6 ]! D2 w) C3 z# i
but i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left....os.tvboxnow.com/ b8 I- C3 K- T% i8 C
maybe there is a better one, let me see sin
actually this question always have someone asked, the calculation is very complicated, should give a no. of each ball, and first weight it in 6-6, and .... forgot...