i find one solution that is similar u* L) Y- V; }1 D
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.... 3 @$ \- M& i# xmaybe 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...