After listening to Zhao Xiancai's lecture on the test question, Lin Qisheng was still thinking about the process of Zhao Xiancai's lecture on the question on the way back to his room.

"Wonderful, really wonderful, why didn't I think of such a simple method before?

And not only did I not expect it, but they didn’t expect it either. Could it be that this idea of ​​solving the problem is too novel?”

After returning to the room, Lin Qisheng excitedly sent the solution to this problem to a group, which was composed of some alumni of the School of Mathematics at Beijing University. When he asked this question before, he also posted a message in this group.

It’s just that no one posted their answers in the group at that time.

Lin Qisheng rarely posts messages in this group. The main reason is that in addition to the fact that few people talk in this group, the other reason is that he thinks he is not very good at it and is embarrassed to talk in the group.

After all, his classmates either went abroad or became professors in various universities. Anyway, most of them were doing better than him.

However, he was also comparing himself to his college classmates.

"The question asked yesterday already has a solution. This solution was thought up by the student who asked the question. I feel that this idea is really novel and very simple.

I’ll post it to the group for everyone to see.”

After posting this, Lin Qisheng posted the photos he had taken before to the group.

It didn't take long for the group to become lively.

"This method is indeed quite novel."

"Is the CMO exam over? What score did this student get?"

"You said before, is this student named Zhao Xiancai? Is he planning to come to the School of Mathematics at Peking University? If he comes, he will be a junior. I will definitely go and see the freshman report."

"Today is the first day of the exam. The exam will be finished tomorrow. I heard that he used two solutions for each of the three questions on the first day.

When I go back after the exam tomorrow, I will ask my students which method they used to write the three questions yesterday."

…

Some people in the group are still in the United States on the other side of the ocean. They are not very clear about the start time of this year's domestic CMO competition. It is normal to ask if it has ended.

Zhao Xiancai, after returning to the room, was ready to continue doing the tenth question bought from the system.

It's almost ten o'clock now, and he has to get up early to take the exam tomorrow. Naturally, Zhao Xiancai didn't finish the tenth question at this time.

On the other hand, Lian Weicai on the side, after seeing Zhao Xiancai return to the room, began to calculate something on the draft paper again, so he asked him curiously: "What are you doing? Are you doing questions again? You are like this."

What question are you doing?"

After watching Zhao Xiancai's calculation process on the draft paper for a while, Lian Weicai looked confused.

Because he didn't even see the question, and Zhao Xiancai did most of the less troublesome ideas and calculations in his head, so the process written on the draft paper seemed a bit messy.

Unlike the process that Zhao Xiancai wrote on the test paper during the exam, it is clearly organized and can be understood at a glance.

"Isn't this another question you asked yourself?"

Lian Weicai asked again.

Regarding Lian Weicai's inquiry, Zhao Xiancai just smiled at him and said nothing.

Living in the same room as Zhao Xiancai, who was either doing questions all day long or on the way to do them, Lian Weicai was naturally affected.

Originally, he had no hope of winning a silver medal. A bronze medal would be enough. Lian Weicai was going to check his cell phone before going to bed. Seeing that Zhao Xiancai was so eager to learn, he took out some test papers he had brought and started to think about it.

In this way, time came to the fourth day.

In the morning, it was still the hotel's wake-up call service that woke Zhao Xiancai and the others up. After getting up and briefly washing up, they had breakfast, and then rushed to the examination room to take the exam just like yesterday.

[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.]

The exam time on the second day is the same as the exam on the first day. After lunch, those who want to leave can go home directly. Those who want to leave tomorrow can also leave tomorrow.

The number of questions in the exam is also three, but the difficulty is exactly as Cheng Guanglai guessed yesterday, a little more difficult than yesterday.

"For integers n>1, let n=p1^a1...pl^a1 be the standard decomposition formula of n, define w(n)=l,Ω(n)=a1... Is al for any given positive integer?

k and positive real numbers a, β, there always exists an integer n>1, such that..."

The first question of the day, which is the fourth question of the CMO exam, is still a proof question.

It's just that if you want to prove this question, you need to prove two lemmas first, and then use these two lemmas to prove the result you are asked to prove in the question. This is the first method used by Zhao Xiancai.

It took Zhao Xiancai about two and a half hours to complete these three questions today.

However, because the exam lasted for four and a half hours, there were still two hours before the end of the exam after he finished writing.

Zhao Xiancai naturally did not hand in the paper so early in advance, but once again began to use the remaining two hours to find a second solution to these three questions.

It's a pity that Zhao Xiancai had just finished today's second question using the second solution until the final bell rang.

After handing in their papers, the candidates left the examination room one after another.

"How did you do on the exam?"

After leaving the examination room and walking outside the teaching building, Cheng Guanglai, the team leader, asked Zhao Xiancai.

"Okay."

Zhao Xiancai said that he was still a little unhappy about the second solution to the third question that he had not come up with.

Seeing Zhao Xiancai like this, Cheng Guanglai didn't ask any more questions.

He thought Zhao Xiancai had failed in the exam, so he asked other students who came behind him if today's exam was difficult.

"It's a bit more difficult than yesterday. My score on today's paper will definitely be lower than yesterday's paper.

This chapter is not over yet, please click on the next page to continue reading! By the way, how did Zhao Xiancai do in the exam?

He should have finished writing it, right?"

The first one to speak was Song Liqun.

Cheng Guanglai had already expected this result, not to mention his guess yesterday. It can be seen just by looking at the number of people who submitted papers in advance today.

"he……"

"I've finished writing, but I didn't come up with the second solution to the third question, so the exam time is over."

Cheng Guanglai was about to speak when Zhao Xiancai spoke. His words immediately put Cheng Guanglai in a state of confusion.

"You've finished writing, why are you still looking unhappy? I was so scared that I thought you hadn't finished writing, and I was going to comfort you."

Cheng Guanglai thought to himself.

Song Liqun and Yao Ruzhou were also speechless for a while after hearing Zhao Xiancai's embarrassing words. We thought about it for a long time and didn't even finish writing the title.

It's a good thing for you, you are still struggling with a problem here and only thought of one way to solve it.

The reason why Zhao Xiancai is a little depressed is because if he wants to enter the state he was in during the previous exam, he may have to wait until he returns to Chengxian in the afternoon and calm down to study.

After all the camp members from the Anhui and Hui Provincial teams arrived, Cheng Guanglai also said goodbye to the team leaders from other surrounding provinces and left here.

After the exam is over, everyone can go back to their respective homes and go find their respective mothers.

The team leaders from each province only need to count the number of people and take them all to the hotel without even landing.

Afterwards, it doesn't matter if the leader wants to stay here for one more day and wait until tomorrow before leaving, or if he wants to leave right after lunch today.

The same is true for all campers.

However, there are some campers in the Anhui Province team who did not go to the rooms here at the admissions offices of those schools for interviews yesterday afternoon to keep themselves safe.

Today's test has been completed, so they will naturally go there in the afternoon.

next chapter
Chapter completed!