DAY 0
Guangzhou high-speed rail to take the afternoon (to sleep a car), and students went out to dinner at night, back to the hotel playing templates, the students also went to the room a few games of bridge. Feeling questions will not be difficult tomorrow.
DAY 1
I got up early in the morning. To the examination room and found nothing block between adjacent two people, you can directly see the person next to code.
(And people next to me I know)
Topic hair down, the password is bull strange thing, invigilators forgot to add '? '. A look at the first question, the question is to flood it? I instantly had confidence.
After 15 minutes cut off the first question (although I added ull but mentally retarded k + 1, the harm I only last 95 minutes), I do the second question. The second question also seemed to find the water problem?
Feeling after reading the title with a O (nlogn) ideas, I can think carefully discovery may degenerate to O (n ^ 2). Until the end of the examination have not thought of how to optimize.
In fact, I always thought I could get 80 points the second question (although the final plan and only a pitiful 50 points)
Finally, a look is not a question I can do out of the water the violence points (10 points).
DAY 2
Today the state is not very good (blew it yesterday, it seems to me that the second question did not A).
Topic hair down and saw my psychological secretly say f ** k!
md a question I will not.
Good fight violence it!
The first question only 32 minutes of violence, I had not modulo, only 24 points.
The second wrote a violent search, 4 points.
Fortunately, the last question, after violent finished looking to find the law, to find out the laws of the chain and full binary tree, 75 points.
So I total of 95 + 50 + 10 + 24 + 4 + 75 = 258 points, on the front line just a little higher than the province (3 points).