first, compare 6 and another 6. they must have difference. / [* f. \, ^& }
second, divide those 6 heavier one into two, each has 3. u will find difference again.1 G* |8 q& L0 N
third time, if u put 2 and they are equal, u will know the different one.+ g+ N5 g* p4 D* ]6 q/ J* N
so easy.... |