i find one solution that is similar( |- @' L9 a$ R' S+ j
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.... ' Q/ E8 j% j8 V3 amaybe 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...