i find one solution that is similar/ y9 ~8 U8 t- v& a& T% G
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.... 6 k, I0 E, Y) v5 h" d6 Ymaybe 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...