i found the ans in 30 mins but dont know correct or not?7 V5 B1 p& z9 {* ?3 V! y5 \0 d
ans is too long! but concepts are something like that:tvb now,tvbnow,bttvb* e; s$ \0 H/ ?1 c; E$ X5 a2 e
seprate 4 groups 3 balls in one group! tvb now,tvbnow,bttvb+ z; ?4 s$ Q9 M+ |: K
the important part is the 2nd times which need to find out the fake ball is heavier or lighter by use the normal ball that u find at the first time!( D( d& \% k& Z1 `1 d- s P, W: U( A
the last part is 1ball vs 1ball! something like that |