Great Country Academician

"Xu Chuan, wake up."

Confused, Xu Chuan felt someone calling him, he wanted to open his eyes, but felt very strenuous. The whole person seems to have gone through a very long journey, and also seems to have a long dream, very tired.

"What's wrong with you today? You're still sleeping after lunch break."

The voice next to his ear came again, Xu Chuan opened his eyes suddenly, and the bright sunlight outside the window spread on the wooden desk.

In front of me is a huge blackboard with white chalk writing on it.

Beside him, a boy of seventeen or eighteen years old was looking at him strangely.

Xu Chuan was stunned for a moment, and the memory suddenly appeared in his mind. He was stimulated by the rapid weightlessness of falling, and he clung to the desk in front of him tightly. He didn't calm down until the feeling of falling dissipated and the solid touch came from his feet. down.

After taking a few deep breaths, Xu Chuan raised his head and looked around. In the noisy classroom, some familiar and unfamiliar faces emerged from his memory.

"This is Class 1201, Senior Three?"

"Did I have a dream? Or did I travel back in time to twenty years ago?"

"If it was a dream, how could those memories be so real?"

Looking at the familiar and unfamiliar classroom, Xu Chuan was a little confused for a while.

The memory of the future in my mind is extremely clear, and the scene of the crash is so real that it is frightening.

"What's wrong with you? Have you caught a cold? Go to the infirmary?"

Hearing the voice next to his ear, Xu Chuan raised his head, glanced at his former deskmate, and shook his head.

"I'm fine, I'm going out for a walk."

Outside the teaching building, the playground covered with gray cement floor tiles was extremely flat. Xu Chuan walked on it, and some scattered students were active, which also brought him some memories buried deep in his mind.

Finding a step to sit down, Xu Chuan looked at the two blossoming iron trees not far away, with a wry smile and bitterness on the corner of his mouth.

He didn't expect that he came back like this.

You must know that on that plane, there were not only him alone, but also officials who accompanied him back to the country, as well as the country itself in the first district, and even an important person who accompanied him on a visit.

In addition, there were nearly 300 ordinary passengers and crew members.

Coupled with the exchange of countries, I thought I could return to China safely under such multiple guarantees, but I didn't expect to still not be able to return.

It is a pity that before his death in his previous life, he was only one step away from the motherland, but he had not yet stepped into the territory of the motherland.

After sitting quietly on the steps for a while to relieve his emotions, Xu Chuan stood up, patted the dust on his pants, turned and entered the classroom.

The familiar desk, familiar textbooks, familiar classmates, everything is exactly the same as the scene he remembered when he was seventeen years old.

"Am I really reborn?"

Xu Chuan touched the thick textbooks on the table with bookends, and his fingers felt the thickness and touch of the books. It was very real, and it also made him fascinated and confused. There was also a trace of fear, fearing that this was just a dream before the plane crashed. .

"Even if it's a dream, please have it for a while."

Xu Chuan raised his head and looked at the bright sunshine outside the window, with a bright and resolute smile on his face.

"Ring ring ring ring."

Harsh bells echoed throughout the campus.

In class 1201, a middle-aged man with a thermos cup and a thick test paper under his arm walked into the classroom, and the noisy classroom quickly quieted down.

"The mid-term is coming soon. This class will have a preliminary test first. The monitor will come and divide the test papers. Don't think about cheating, it doesn't make any sense."

The middle-aged man is Tang Gaoyuan, the physics teacher of class 1201, and the head teacher of class 1201.

Tang Gaoyuan looked at the students in the classroom solemnly, put the test paper in his hand on the table, and added a sentence.

"Xu Chuan and Cao Weicai come with me first."

Xu Chuan got up and walked out with another boy with thick eyes.

"Teacher Tang."

"Teacher Tang."

In the corridor, Tang Gaoyuan was sipping tea from the thermos, while Xu Chuan and Cao Weicai greeted each other respectfully and stood aside.

For Xu Chuan, Tang Gaoyuan was his physics enlightener, who taught him physics from the first year of high school. It can be said that without him, later generations would not have the self who stood at the pinnacle of physics.

Seeing the two of them, Tang Gaoyuan smiled gently, he was completely different from the serious face in the classroom before.

"This year's object election is about to start. I will sign up for you. You guys should prepare. The training camp will start in a few days. I hope you can get better results this year than last year."

Generally speaking, unless the third-year students are particularly good and have enough confidence to enter the national training team, they seldom participate in competitions like Wujing.

Generally, the main students participating in competitions such as physical competition and mathematics competition are sophomores.

After all, the vast majority of students still have to take the college entrance examination, and participating in the competition is a very time-consuming and energy-consuming thing.

But if you can enter the national training team, it will be different. Every student who can enter the national training team to represent the country has a university rushing for it.

The two in front of me are, whether it is Xu Chuan or Cao Weicai, both entered the training team in the second year of high school, which can be said to be the most glorious year of Star City No. 1 Middle School in recent years.

"Material competition?"

Xu Chuan was slightly puzzled, and then realized that it was IPHO. At the same time, the deep memory in his mind was also revealed.

IPHO refers to the International Physics Olympiad, and the age of the participants shall not exceed 20 years old on June 30 of the year of the competition.

Held once a year, it is hosted in rotation by the member states that make up IPHO.

This member state basically covers most of the countries in the 18 regions of the world.

Almost every country in the world sent five of the most elite high school students, and then fought on the physical battlefield to compete for the first place.

He participated in this competition both in his sophomore year of high school last year and his first year of high school the year before. In his freshman year of high school, due to lack of knowledge reserves, he barely made it to the provincial team and entered the national finals, but he failed to replace the country. In his sophomore year of high school last year, he successfully entered the national team and entered the final world championship, but unfortunately he did not win the gold medal.

It is now late August, which is almost the time when the first round of IPHO selection begins in China. According to the historical development before rebirth, he will also participate in IPHO this year and successfully enter the national team to fight with students from other countries.

It's just a pity that although he successfully won the gold medal in next year's IPHO, he didn't get the 'absolute winner' and was two points behind the Korean players.

The so-called absolute winner is the contestant with the highest score in the competition. In addition to winning the gold medal, he will also receive a special prize. This is his regret.

But speaking of IPHO, Xu Chuan thought of another competition, the International Mathematical Olympiad (IMO).

The reason why he thought of this was because he remembered a piece of news he knew before he was reborn.

The rebirth brought Xu Chuan not only the various scientific research knowledge in his mind for the next twenty years, but also the general international trend in the future, and some other news.

It's 2014, if something doesn't go wrong with some part of his mind.

From unknown time in the past to 2017, the country opposite the west coast has increased its penetration into other countries, and various information activities have become stronger and more frequent than before.

Moreover, in this event, the country on the west coast adopted a brand-new information security method to communicate and transmit information.

This method of information security communication is based on a mathematical law. Only by finding this mathematical law can the information inside be deciphered.

But the key point is that the logic and functions in the mathematical laws used by each intelligence are different, and it takes a certain amount of time from intercepting the opponent's intelligence to manually deciphering it.

It is often due to this time difference that the other party has already completed the information transfer.

According to what Xu Chuan knows, from next year, he will start to seek help from those mathematics students who have participated in the IMO competition. Of course, it is also possible to put these topics into the learning scope of the competition students.

He didn't read those math problems, because when he learned about this later, these things had already passed.

But if you think about it for a while, you will know that those questions are definitely not something ordinary high school students, college students or even graduate students can answer.

People who can design this set of mathematical laws and use them for national invasion are definitely not vegetarians.

Although the high school students who can make it to the IMO finals and win medals are all very talented in mathematics, but in the face of this kind of thing, they can't play a big role.

So it's most likely the latter.

But for Xu Chuan, this is an opportunity to get in touch with this matter. If he can show enough mathematical talent in the competition, then it is possible to participate in this matter.