[The third day of the online game plan] Er, some troubles

My mind is beginning to get confused, and my ears vaguely remind me of the boss's warning about "Do not overdo the game.
In fact, it is now am. Why is it so late (miserable ?), It has something to do with bragging in the blog yesterday, but fortunately it is done.
Today's first question is about a sorting algorithm that solves network congestion. I used the dumbest algorithm to simulate the number of reports, the question is passed once in 10 seconds (in fact, the number of debugging times is an astronomical number ):
 
It seems okay from the feedback time, but the algorithm is stupid.
The second question is rather complex, because I chose a question that I did not understand. I gave up the result and changed it to the following question:

No way, time is tight. We can only use this kind of curve to save the country to ensure that the task has been completed, and the damn NP-hard problem will be discussed by me ). It's not hard to pass this question. It's just that the question is enough. It's just a long time before Kingsoft's death to understand what to say. It's about the matching problem, I don't know what kind of head came up,
The source of the question is:Asia 2001, Tehran (Iran ),Fortunately, it's not the original question of Zhejiang University. I can still understand the abnormal nature of foreigners.
Ah, I don't want to talk nonsense, and I can't help myself. I will study the basic algorithms tomorrow. What kind of NP Can someone give me some advice in my dream.