i find one solution that is similar公仔箱論壇) N8 j7 a! z: \. d1 c
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.... + _/ e; a0 d8 o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...