first, compare 6 and another 6. they must have difference.
* ~( ~1 f% b Stvb now,tvbnow,bttvbsecond, divide those 6 heavier one into two, each has 3. u will find difference again. w- z3 H) V- q6 w
third time, if u put 2 and they are equal, u will know the different one.6 K( k+ p# Q. L0 [
so easy.... |