i find one solution that is similar公仔箱論壇! B2 x& ^/ F; U1 a& u6 ?
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....www3.tvboxnow.com0 _! o( O7 _6 X/ v8 y" I/ B
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...