i found the ans in 30 mins but dont know correct or not?" _* C/ p& ? Y F8 o: a5 ?
ans is too long! but concepts are something like that:tvb now,tvbnow,bttvb; Y0 Y7 t0 t$ E$ Q+ R6 a
seprate 4 groups 3 balls in one group!
4 _6 w/ `. g8 |5.39.217.77:8898the 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!公仔箱論壇% F$ ?9 v( t9 q/ M( q. `1 Y) q. x
the last part is 1ball vs 1ball! something like that |