Examination process
Opening probably sweep the two questions face, feeling only T1 can do themselves out of a yy O (N ^ 2) practice, but did not think carefully,
Then I think positive solutions, find positive solutions to their various inclusion and exclusion lot of trouble, only to give up the fight n ^ 2, and then found that the sample had not
Carefully hand prints found still can not deal with this situation, 1h30min past,
You can only go to write T2T3, violence, and then want to T1 apparently not so clear thinking, mind is not stable, so to calm down the toilet
After the transformation back to the idea slightly, enumerated a, b, this case will be very convenient, and then finish the N ^ 2, n is calculated solution is very good
This game is the last game, although the score did not get behind, but it ups and downs, but also their normal play it
Personal feeling cheated minute introduction or use of some