When it was time for self-study in the evening, Zhao Xiancai received a new task issued by the system.

【Participated in the 2013 CMO and became a member of the national training team.】

Faced with this task that he was 100% sure to complete, Zhao Xiancai naturally accepted it.

"I don't know what the next task is. Is it to make me a member of the national team and represent the country in next year's IMO?

And then let me get the gold medal imo?

Or give me full marks imo?”

After receiving this task, Zhao Xiancai began to think in his mind that now he had two tasks in the completion state and could still receive another task.

[To be honest, I have been using Yeguoyuedu to read and catch up on books recently. I can switch sources and read aloud with many sounds. Yeguoyuedu is available for Android and Apple.]

After just thinking about it for a while, Zhao Xiancai soon focused on answering questions again.

"Suppose n≥3 is a given positive integer, c1 is a unit circle with a radius of 1 on the plane. The corresponding circle centers are recorded as o1, o2,...,on respectively. Assume that any straight line intersects at most two of the unit elements or

Tangency. Proof:…

This question has been done, next question.

n is a given positive integer, s=……

Why is it a question that has been done before? Skip it.

Let s be a finite set of points on the plane containing at least two points, no three of which are on the same straight line.

The so-called 'windmill' refers to a process such as: a straight line passing through a single point p in s..."

Just like that, because the questions I did before were relatively complicated, including IMO test questions from previous years, test questions from relevant domestic competitions, and even other high school mathematics competition test questions.

So when Zhao Xiancai is doing questions now, he will encounter some questions that he has done before from time to time. He has already mastered these questions, and he will naturally skip them when he encounters them.

When the evening self-study is over, Zhao Xiancai estimates that he can finish the remaining questions in less than a week, and this is assuming that there is no need to skip the remaining questions.

On the way back to the rental house, Yu Shujun walked with Zhao Xiancai, and she said some words of congratulations to Zhao Xiancai.

However, the two of them didn't say much, and just returned to their residences wordlessly.

By the afternoon of the next day, Lin Guangqiang forwarded a separate notice to Zhao Xiancai.

This is an article jointly released by the "2014 National Mathematical Olympiad (29th National Mathematics Winter Camp for Middle School Students) Organizing Committee", "Suzhou Mathematical Society" and "Jinling Normal University Affiliated Middle School", titled "2014 National Mathematical Olympiad and

Notice of the 29th National Middle School Mathematics Winter Camp Activity Arrangements.

The notice explained the location of this year’s CMO and the arrangements for related matters.

Although this year's CMO is said to be the 2014 National Mathematical Olympiad, the specific time is scheduled for the end of 2013.

With the approval of the National Mathematical Society, it will be hosted by the High School Affiliated to Jinling Normal University in Jinling City, the capital city of Jiangsu Province.

The CMO will be held from December 19th to December 23rd, 2013.

We will report all day on the 19th. After taking the second test on the morning of the 22nd, we can leave the camp in the afternoon.

Of course, you can also wait until the morning of the 23rd to leave.

In addition to the time and location of the event, Zhao Xiancai is most concerned about the cost.

According to the notice, all campers, team leaders and guests need to bear their own round-trip travel expenses, and when checking in, they also need to pay camp fees on site. The camp fees are 1,200 yuan for campers, 1,600 yuan for team leaders, and 1,600 yuan for guests.

2200 yuan.

After paying the money, the expenses such as food and accommodation will be arranged by the organizer.

"Thank you, Teacher Lin."

After reading the notice, Zhao Xiancai also thanked Lin Guangqiang.

Today is Saturday, and Lin Guangqiang is not the head teacher of any class. Logically speaking, he can have a good rest at home today.

He is just the teacher who arranges tutoring classes for math competitions at Chengxian No. 1 Middle School. He doesn't really need to be so concerned about other things besides attending classes.

But he was always paying attention to news related to the mathematics competition. Whenever he saw new news, he would either send it to the group or send it to Zhao Xiancai alone.

This also made Zhao Xiancai feel Lin Guangqiang's concern for the mathematics competition students like them. When he said thank you, he also spoke from the bottom of his heart.

"It's such a small thing, you're welcome.

You are currently focused on answering questions, and you may not know these news in time. I usually pay attention to it when I am not in class. If I see it, I will forward it with a little effort.

If you can get a gold medal, or even join the national training team, then I can brag about it to my future students [baring teeth].

You don’t have to worry about operating expenses and round-trip transportation fees.

It’s not easy for the school to produce a candidate for the provincial team, and your math league score is still full score. The school will reimburse you how much money you have. Your class teacher must have told you about this, right?

I remember that you bought a lot of math materials before and were reimbursed through the school."

Lin Guangqiang also replied to Zhao Xiancai's thanks.

"I know, Teacher Fang told me before."

After seeing Teacher Lin's reply, Zhao Xiancai also felt a warm current in his heart.

"The provincial team roster and score lines haven't been announced yet, but this one will come out first."

After finishing the communication with Lin Guangqiang and putting away his mobile phone, Zhao Xiancai thought so in his heart and smiled on his face.

As for what was mentioned in this notice, Zhao Xiancai quickly stopped caring about it.

After all, it’s only October now, and there are still nearly two months until the December reporting time.

No matter what, we have to wait until the Provincial Mathematical Society announces the list of the provincial team, right?

However, Zhao Xiancai did not wait long for the announcement of the score lines. After the weekend break, on Monday, October 28, the score lines for the provincial team, provincial first, provincial second, and provincial third were announced.

As students, Zhao Xiancai and Zheng Wenyi naturally couldn't focus on this all day long. When they learned the news, they still found out about it through the competition group of Chengxian No. 1 Middle School, and it was Teacher Lin who posted the news in the group.

information.

This year, the provincial third score line of the Anhui-Huizhou Digital Federation was 36 points, the provincial second score was 60 points, the provincial first score was 149 points, and the provincial team score was 190 points.

"Is the three-point saving threshold so low?"

“The three-year savings is low, but it’s of no use even if you get the three-year savings.”

"Why is it useless? After all, the third-level provincial students in the Digital Alliance can still get some quotas for independent enrollment in a certain university with reduced scores."

"Province 1 is 149, and province 2 is 60. So this year our Chengxian No. 1 Middle School will have two provincial 2s and two provincial 1s. Moreover, one of these two provincial 1s has entered the provincial team."

Since it was during class time when Lin Guangqiang posted news about the provincial team scores in the group, there were not many replies.

It wasn't until after class that there were more messages in the group.

"It was class time just now, right? Aren't you guys going to class?"

Someone asked after seeing the message in the group after class.

"What's wrong? Our last class was physical education, couldn't we?"

"Does your class still have physical education classes in the senior year of high school?"

"Of course.

【picture】

Did you see, is our class’s last class a physical education class?”

"I mean, your physical education class is still going on normally?"

…
Chapter completed!