i find one solution that is similar, W+ M. B% a& L/ t: [7 e& S( L
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.... ( N- `" }/ Z$ i: H5 X; Ewww3.tvboxnow.commaybe 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...