i find one solution that is similar ( E# w+ _6 J! s" _! f: h/ S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.... / h: S6 }! n; kmaybe 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...