i find one solution that is similar - ?, T* u6 g. S- e6 J% Wbut i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left....公仔箱論壇9 V j/ t. S4 P# j4 r, R$ f2 K
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...