i find one solution that is similar - B2 v! s& c. y# W9 B6 j! 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....公仔箱論壇 L3 G+ `$ [5 h/ D* W7 r/ x- E
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...