i find one solution that is similar : I+ Y( W- z3 Y( }6 M2 K/ U6 O公仔箱論壇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....4 o1 B& q- V2 {" w
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...