first, compare 6 and another 6. they must have difference.
# \0 @4 @$ v9 J9 O( p+ vtvb now,tvbnow,bttvbsecond, divide those 6 heavier one into two, each has 3. u will find difference again.
/ O2 D% m6 `1 u+ @- \5.39.217.76third time, if u put 2 and they are equal, u will know the different one.
: P" L+ d& Z- Z& I. r7 p" r5.39.217.76so easy.... |