\ (2019CSP-S \) travel
\(Day : -26\)
Preliminary decommissioning failed to prepare a rematch. . .
\(Day:0\)
Morning \ (7:30 \) starting the car to Hangzhou, has been spent in the car listening to music and sleeping in (Song Jin as saying zero really nice). . . After about more than four hours, the car to Hangzhou, to the hotel after eating a noodle bowl, has been playing the game in the hotel and reviewed.
Roommate at night and go out looking for other people to dinner, only to find \ (cly \) and \ (cy \) as well as seniors \ (csh \) , and finally go to McDonald's to eat a meal, actually found in the archway of a gold walks Lord \ (HXM \) , Gangster bless. . \ (rp ++ \) .
\(Day:1\)
Morning \ (6:30 \) has the magic of "wake-up" service, stumbled out of bed to go downstairs for breakfast, no appetite.
Probably \ (7: \ 30) left and right to the door Wenyuan school, Xuejun garage true \ (tm \) is large. . . Anyway, bigger than our school playground. . .
After finding their seats began to observe from the surrounding environment, do not fart. . . .
When the exam fast start, on the edge of big brother to come, so I thought he was abandoned exam. . . .
Release of the exam invigilator password: "? Ren2Zheng0Si1Kao9", what serious consideration, 2019, is not, you come to seriously consider and 2019 is enough, you \ (tm \) again a \ (\?) Number is what? ? I actually lost three times to enter the correct or not? ? Finally, look closely, actually one less \ (1 \) .
Start first opened looked at all the questions, the amount of \ (t1 \) questions face some small long, but should be good to write, \ (T2, T3 \) how are the subject of a tree? ? ? WhenLeague\ (CSP \) then liked to test the tree. . . .
Regardless, the first to write a \ (T1 \) , initially looked at data range, high-precision seems to want to make? ? ? Like \ (unsigned-long long \) just fine. . .
After a large sample no how to have control. . .
Then, I opened \ (T2 \) , it is clear that one of the \ (O (n ^ 2) \) The \ (50 \) score is sent, it took \ (5min \) code after I made a So far I can not believe that decision! ! !
I opened t3 !!!
Read it after that, I always thought that all sides do not have to cut off the tree, and then guaranteed minimum lexicographical, and then I looked again at the data range?
What the heck! ? \ (tm \) violence only \ (10 pts \) , the amount, no matter, hit it. . .
After playing, I'm happy again measured sample? What, I can not over-sample? ? ? ?
Correct! ! I must have some place appeared \ (bug \) , so I began to \ (Debug \) , I \ (de \) faster \ (20min \) have not found any problems.
I will even reconstruct the code again not found any problem, however: it has not had a sample! ! !
It was not until my hand to play a bit samples, I found: I misread the question! ! !
I always thought that may not be able to delete the edge all the sides, until that time I realized that we must remove all the edges.
Only time over one hour, and I hurried over, began hurried to tune \ (T2 \) , but it was too late. . .
Until the end of the exam, I can not face my driving the wrong question, and the fact that this ruthless! ! !
Sky is blue, the sun is very warm, I was bored. . . .
After the students go back to the hotel and dined, it stayed the night in a hotel.
\(Day:2\)
Comeback, a comeback is impossible in this life! ! !
Quote a well known phrase
Do not ever think comeback, because you do not know even the disk to where! ! !
What can I say?
Start to look a bit all the questions, I rely on, it \ (t1 \) how so long ah! ! !
How is counting plus tree problem! ! ! !
Glanced \ (T2 \) , the range of data so large it must be greedy! ! ! , \ (36 \) points \ (dp \) is sent, a little bit to be able to optimize \ (64 \) points.
I quickly typed up \ (36 \) sub-segmentation and \ (64 \) segmentation, began After a large sample of the shoot, shoot went on after that, did not control him.
I love holding the count of mind to open the \ (T1 \) .
Read the question again? I did not understand!
Reread the question? ? I have not read! !
And read the question again? ? ? Not any read! ! !
Finished , my mind began to explode! ! !
Finally, relying on samples and speculation, I finally read the title. . . .
Think carefully, I rely on my only \ (m ^ n \) level \ (dp \) , I was shocked! ! !
Well, \ (64 \) points were the most points, I'll take it! ! ! After a moment often transferred to the card to let go.
In the last period of time, I played \ (t3 \) segmentation of violence and chain, had never written more divided.
postscript
Last year \ (rank1 \) Shaoxing in a \ (zzy \) drop altar, the talented high school Zhenhai a player \ (qy \) took the 575, coming to the king, the same school seniors \ (rkj \) a minute did not hang \ (495 \) becomes \ (ZJ \) after the third year to \ (rank20 \) .
Some people worry too happy, know many are tragically died suddenly strong in this session of Friends (du) good (liu) of title, seniors \ (czj \) in the test \ (day1 \) due to computer problems caused \ (t1 \) compilation error, originally had \ (479 \) instantly burst into \ (379 \) , but he was so strong, small \ (c \) should give him a reward of places, seniors \ (cxw \) test \ ( DAY1 \) , the cut slitting hung up, the \ (T2 \) a \ (5000 \) of a file points to cut the \ (O (n ^ 3) \) algorithm to go, and many people \ ( day1t2 \) write hung, there could have \ (400 \) points have become \ (300 \) points brutally retired.
Cultural life lesson Examination of the end really no fun, cultural studies, unlike \ (oi \) as it is meticulous ratio, ratio is in the details, wanted to \ (yyb \) put it, "Who remembers the good, who remember the fine , whoever wins. "
The test does have a lot of places unsatisfactory, give away points so I did not get very autistic, did not test well is that people always unsatisfactory. . .
Alas, I was speechless! ! !
At last
Goodbye \ (OI \) , Hello entrance
Cultural studies \ (rp ++ \)