i find one solution that is similar公仔箱論壇3 m! H2 U; P) ?+ Y' `4 u/ j
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.... ( H- r9 M, w6 P4 \" nmaybe 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...