i find one solution that is similar 8 C2 Q+ ]7 _. dbut i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left....5 X( _; C# x* ^# v9 I/ l% _ ?
maybe 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...