i find one solution that is similar $ w7 j* f+ R/ D$ a4 l% {* u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....* E' H# w0 n" M; |' d
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...