Zhongshan No.1 Middle School. Opposite my house.
The hotel party school goes to No. 1 Middle School than my home to No. 1 Cosco.
That's right, my home is the Langqingxuan where the parking space problem a while ago (seems to have been a long time ago).
GDOI and midterms crash? , so the mid-term exam decisively gave up treatment.
Day 1
At 7:30, I have been playing with my mobile phone at the door and swiping Zhihu.
Come in at eight.
The test machine played a+b and quicksort (I heard that a big guy played a bunch of data structures?)
Start at half past eight. It ends at half past twelve.
Sign in at T1.
T2 is a bit weird, jump first.
T3 seems to have some special points, and after thinking about it, it is difficult to do. Jump first.
T4 probability of spicy chicken, can't understand the question, discard it.
Backtracking.
T3, violence is 10 points, and a lot of codes are typed, which is a bit low for the price.
The special point is still unexpected.
T2, I always feel that there is a place to do it, but I can't think of it. BFS is defeated by 20 points.
Continue to wander between T2 and T3.
OK time is up.
100+5+10+0=115。
T2BFS burst queue (open too small).
Day 2
Continue to 7:30.
The game time was advanced, and it started at 8:10.
T1 is not a sign-in question, I thought about it for 40 points. The correct solution is spicy chicken number theory again.
The T2 question is very unfriendly to us, although the T1 correct solution is also very unfriendly.
Violence is only 5 points, jump first.
T3 read the question wrong at first, and then I ran out of time to change it, so I scored a violent 10.
T4 Violence 20.
T3 took too long, and my code size was too poor, so I didn't have time to play T2 after five points.
40+0+10+20=70
At noon, I continued to play with my mobile phone in the lounge, and I saw an interesting question on Zhihu: "If a person is 18 years old, he will know his gender."
Two days add up to 115+70=185
No one enters DAY 3
After the violence is done, you can enter.
This time it was better, there was no inexplicable strange WA.
GDKOI, I have 4 questions inexplicably lost 0 points in WA. When I went to re-evaluate, he only told me that the answer was wrong, and he didn't help me adjust it (this was the case for two days, maybe there were too many people at the time), the idea of the four questions was similar to his. Some of the ideas are similar, and I still don't know why I'm wrong.
It's really embarrassing that KOI doesn't have a big example.
Then when I got my GDOI, there was always a shadow, but fortunately there were large samples that were overwhelming.
It seems that there are very few thinking questions this time. It is very unfriendly to us to have so many template questions.
I successfully found out how to evaluate GDOI2018 on Zhihu, and the organizer expressed helplessness.