first, compare 6 and another 6. they must have difference. tvb now,tvbnow,bttvb4 l: |/ W" p( o( K# e
second, divide those 6 heavier one into two, each has 3. u will find difference again.
/ ] E; z( E6 Q- H2 u+ jthird time, if u put 2 and they are equal, u will know the different one.公仔箱論壇) x4 B M1 U- K0 {1 @+ @& ^ j% K
so easy.... |