i find one solution that is similar # Z& [$ H+ s3 p' e( I2 J- ubut i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left.... , f+ w1 O* m4 ?$ Zwww3.tvboxnow.commaybe 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...