i find one solution that is similar: Y4 `! ~( {" ~+ v- p- C. s
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.... 9 S" w R+ e: O6 mmaybe 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...