i find one solution that is similar5.39.217.76: v1 @4 @& x. P8 e0 s# E; 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....公仔箱論壇; r* N; E2 @5 b" b* T3 o- H9 m9 @
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...