i find one solution that is similar公仔箱論壇1 I* @. ?* Q- V; w! q {% t
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.... ' C$ u4 r( U/ A) O: C% R5.39.217.77maybe 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...