After having dinner with the three teachers in the evening, Xiao Ran returned to the apartment.

At this time, it was already nine o'clock in the evening, and suddenly his mobile phone rang with a "ding dong", and Xiao Ran opened it to take a look.

It turned out to be an email from overseas, and his heart moved, and his face showed anticipation.

"Dear Mr. Siew,

Your paper has been reviewed and will be published on March 10, 2030!

Editorial Board of JACM Journals. ”

This turned out to be the news that the paper had been reviewed, and this speed was too fast! The paper that was just sent yesterday passed the review today, which made Xiao Ran feel a little unreal.

Xiao Ran heard that some papers may take half a year to receive a reply, and he didn't understand why he received a reply in only one day for the paper he sent.

"Whatever, it's a good thing that the paper has been reviewed and can be published so soon!" Xiao Ran smiled slightly, ignoring the reason.

Regarding Liu Jing's paper, Xiao Ran did not tell anyone else.

On the one hand, he felt that it was not necessary, and after the paper was published, everyone naturally knew about it.

On the other hand, the papers have not been published, which tells the school hierarchy that what if they can't be published?

Of course, the main reason is Xiao Ran's character, he usually doesn't tell anyone directly what happened to him, but directly makes the results so that everyone can see them directly.

The paper will be published on the 10th of next month, and there will be no more than a few days left! This matter is naturally to be told to Liu Jing, after all, he is the first author, and he is just a foil.

When he came to Liu Jing's dormitory, he was still reading diligently.

"Xiaojing, you don't have to work so hard, you have time to do more "Gymnastics", improve your physical fitness, and have more energy to do research!" Xiao Ran saw Liu Jing working so hard and soaking in the room all day, he was a little worried.

"Teacher Xiao, I know!" Liu Jing was said by Xiao Ran, and he suddenly said a little weakly.

"Well, that's good, the teacher is looking for you tonight to share good news with you. Xiao Ran's face softened slightly, and then said, "Your paper has been reviewed, and it will be published on the 10th of next month, how about it, are you happy?"

Liu Jing hated slightly, he smiled and said, "Hehe!"

……

The next day, Xiao Ran had just finished a class and walked out of the classroom of class 10, when he saw Shi Mingju waiting for him at the door of the classroom.

"Teacher Shi, what's the matter with you?" he asked, a little confused.

"Xiao Ran, the notice of the national training team has come out!" Shi Mingju said with a smile, "Let's go to Principal Li's office first, and there are some details, let's talk about it in detail." ”

"Oh, that's it, okay, let's go!" Xiao Ran suddenly realized that the opening time of the Huaguo Mathematics National Training Team is generally around March every year, and the calculation time is about the same.

A moment later, the two arrived at the principal's office, and Principal Li Yun had been sitting on the sofa waiting for a long time.

"Teacher Xiao, this is the notice sent above, you can take a look at it first!" After taking a seat, Li Yun handed a document to Xiao Ran and said.

Xiao Ran took the document and opened it, and sure enough, it was the specific arrangement of this year's national training team.

"This year's training team opened on March 12 at South China Normal University and lasted for 10 days, and finally selected 6 students with the strongest comprehensive ability to represent the country in this year's International Mathematical Olympiad. ”

"The coaches of the training team are all professors from the mathematics departments of various universities, and some excellent high school teachers are also invited to serve as coaches. ”

"Mr. Xiao, you are one of them!"

Shi Mingju explained with a smile on the side.

"So, you have to set off on March 11th, this time you are the only one to lead the team, during the training camp, you must take care of the students, don't make any mistakes!" Principal Li Yun also admonished with a serious face.

"Hmm!" Xiao Ran nodded in response.

……

Coming out of the principal's office, Xiao Ran also called out the 15 participating students, informed them of the incident, and asked everyone to get ready and put more energy on the Olympiad in the near future.

Looking at the 15 students in front of him who were eager to try, he couldn't help but feel a little emotional.

Half a year ago, these students were still poor students in everyone's mouth, and when he took over, they were all in a negative mood and looked embarrassed.

Now they are full of spirit, the sun is shining, and a breath that only Xueba has emanates, which is their self-confidence from the depths of their souls.

"This time, only 6 people from the national training team will be selected to represent the country in the International Mathematical Olympiad, so at least 9 of you will be defeated. Xiao Ran said with a serious face.

"No, no!"

Everyone hurriedly shook their heads and said that they would not be jealous of the other selected students.

Xiao Ran breathed a sigh of relief, if he lost to someone he didn't know, he might not have any ideas.

But if you lose to your classmates, you may feel jealous.

This kind of thing is unlikely to happen in other schools.

However, there were 15 students from the fifth high school who participated in the competition, and all of them were the top batch.

He had a hunch that these six places might eventually be contested among the 15 people.

Thinking that he hadn't checked the talents of several people for a long time, Xiao Ran silently thought about talent identification in his heart, and the mathematical talents of the 15 students suddenly appeared in his mind.

Xiao Ran looked at Yang Chengyou with a surprised look on his face, and looked Yang Chengyou up and down for a while.

"Xiao, Teacher Xiao, is there something wrong with me? Why are you looking at me like this?" Yang Chengyou was slightly furious by Xiao Ran's eyes, and he said weakly.

"Huh!"

Xiao Ran smiled meaningfully.

Yang Chengyou's mathematical talent was 92 points when he participated in the CMO competition, and how long has it been since it has increased to 95 points.

You must know that the higher the talent value, the more difficult it is to improve, just look at the other 14 people.

Only Zhou Jie has improved his talent a little, reaching 90 points, and the other students are still standing still.

Yang Chengyou increased his talent value by 3 points in more than a month, reaching a terrifying 95 points, and there must be a hidden secret.

After some advice and encouragement, he left Yang Chengyou alone, and the other 14 students went back to the classroom.

"I heard that you've been working on number theory recently?" Xiao Ran asked with a smile.

"Hehe, I'm just going to try it!" Yang Chengyou scratched his head and said embarrassedly.

"Zhou's guess?" Xiao Ran said with a smile.

Zhou's guess was put forward by the Chinese mathematician and linguist Zhou Haizhong in 1992 in the article "The Distribution Law of Mersenne Prime Numbers", and it was named "Zhou's guess" in the world.

This conjecture has not yet been proven or disproved, and has become a well-known mathematical puzzle.

Xiao Ran accidentally saw Yang Chengyou studying this topic, so he left him alone to talk.

"Hehe, Teacher Xiao's discerning eyes!" Yang Chengyou said with a slightly red face, as a high school student, he actually went to study a problem that mathematicians had not solved, and he was indeed a little arrogant.

"I see you're writing almost a scratch paper, and you're making progress?" Xiao Ran only glanced at it at the time, but didn't look closely.

"Hehe, I feel like I'm getting faster!" Yang Chengyou said with some excitement.

"It's okay, mathematicians can't solve this kind of problem, and you don't have ideas...... What?" Xiao Ran was about to comfort him and persuade him to give up and try again in college, but he didn't expect ......

"You—Is this true?" Xiao Ran was so shocked that he lost his voice a little.

"I don't know why, but all of a sudden, I found inspiration, and I proved it all the way, and I felt that the steps of the proof were clear, and in a few days, it would be completed. Yang Chengyou was a little embarrassed by Xiao Ran's reaction.

"No wonder ......" Xiao Ran looked contemplative, the reason why Yang Chengyou's talent has improved so much seems to have something to do with his research "Zhou's guess".

The improvement of talent is like a flash of inspiration, some questions suddenly become clear, and some shackles seem to be missing in my mind all of a sudden, clear and bright.

Coupled with the talent training function opened by Xiao Ran, during the winter vacation, Yang Chengyou devoted himself to mathematics, and found a breakthrough to solve the "Zhou's conjecture", and at the same time, the talent is worth improving, so it is quite reasonable.

"You kid can, let it go, show it to me when you're done, and I'll teach you to finish the paper!"

Xiao Ran didn't expect these students to be so powerful, Liu Jing's ranking had just passed the review, and Yang Chengyou gave him such a huge surprise, what a double happiness!