i find one solution that is similar - x5 ^2 W: L' M/ A1 D1 gbut i can't specify the heavier one is abnormal or the lighter one is abnormal when the case that has only two balls left....6 K5 W( k% \8 Y$ D" y9 `* S" c
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...