first, compare 6 and another 6. they must have difference. tvb now,tvbnow,bttvb1 q- o" q: B, N" I
second, divide those 6 heavier one into two, each has 3. u will find difference again.
+ L/ b) g" a) s- V, q: [* htvb now,tvbnow,bttvbthird time, if u put 2 and they are equal, u will know the different one.
/ C' `: U+ I# a& p: V+ k. Y公仔箱論壇so easy.... |