first, compare 6 and another 6. they must have difference.
6 D- c- `$ {, T: J) Jsecond, divide those 6 heavier one into two, each has 3. u will find difference again.tvb now,tvbnow,bttvb3 w6 X4 j# Q2 K7 e% ?
third time, if u put 2 and they are equal, u will know the different one.
1 B$ T E" V3 q! S& U& x! j6 ?so easy.... |