Does the problem statement meant that each member should have all his friends in the other team OR each member should have at least 1 friend in the other team ?
If the first statement is correct the sample output does not hold.
Please clarify.
Thanks in advance

Edited by author 17.02.2013 01:32

> If the first statement is correct the sample output does not hold.

Then how do you think which statement is correct? :)