i find one solution that is similar公仔箱論壇6 N0 I3 \9 ^9 }6 B& @
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....5.39.217.77* o% j) o( e0 Y% W' y2 C' b
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...