i find one solution that is similar公仔箱論壇4 ]) B a% X1 t N0 @
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.... 7 [4 Q' F, K; G. C/ z公仔箱論壇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...