i find one solution that is similar5.39.217.766 B p( O4 a. s$ ]1 @( k" _
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.... ' M* e! P1 k: N8 _ `0 ^6 J5.39.217.76maybe 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...