universal data

Chapter 295 The competition begins!
298 chapter

At twelve noon, the plane landed smoothly at Capital International Airport in Kyoto.

Cheng Nuo and Mu Leng went straight to Tsinghua University and Peking University in Zhongguancun.

The location of competition training is on campus, and the location of accommodation is still in their respective dormitories.

Although it was still the seventh day of the Lunar New Year, the school had a lot of students who applied to stay in school during the winter vacation, and the campus was not very deserted. There were students walking on the road with books in their arms everywhere.

No, as soon as Cheng Nuo walked to the library with his suitcase, he saw an acquaintance walking out with a stack of books.

"Happy New Year, senior!" Cheng Nuo greeted with a smile.

"Huh?" Seeing Yu Luo tilting her head, she let out a light sigh, "Didn't your freshmen start school only on the [-]th day of the first lunar month?"

Cheng Nuo explained with a smile, "I applied for this year's college mathematics competition, so I returned to school early to participate in the training camp."

"That's it! Then junior fellow student, you have to work hard! I heard that if you can get good results in this competition, you will get a lot of extra points whether you are going to graduate school or studying abroad." Jian Yuluo smiled sweetly.

"must."

After bidding farewell to Jian Yuluo, Cheng Nuo went back to the dormitory.

Opening the door, the room was naturally empty.

The other three roommates were enjoying their first university vacation to the fullest, but Cheng Nuo had no choice but to rush to school even before the Lantern Festival.

I called Professor Lu and told him that I had arrived at school.Originally wanted to sleep and recharge for tomorrow's training camp, but remembering that he hadn't eaten lunch yet, Cheng Nuo invited Mu Leng out and found a high-end western restaurant for a little sweetness.

One day without words.

The next day, the eighth day of the Lunar New Year.The smell of the year has not dissipated yet.

Various shops, large and small, have opened successively in Kyoto.

After a simple breakfast in the school cafeteria, Cheng Nuo rushed to the teaching building where the training camp was held.

Since the time of the training camp happened to be the winter vacation, almost all the teaching buildings did not have classes arranged, so it was very easy for the School of Mathematics to apply for the right to use the next building.

Tsinghua University has a total of more than 100 students participating in the competition training this year, from all four grades, but most of them are sophomores, accounting for more than 60 students.As for the seniors, there are not many idlers who are capable of participating in the competition, so there are only five of them in total.

As for the freshmen, since they haven't finished learning the basics of advanced generation, counting and solving, there are very few people who sign up for the competition.

The classrooms for the freshmen and sophomores were in the staircase classroom on the first floor. When Cheng Nuo slowly wandered over, there were no seats in the front row, so he casually found a seat in the back row to sit down.

One of the main persons in charge of this training camp is Professor Lu.However, most of the courses are taught by several teachers from the School of Mathematics in turn.

In this way, Cheng Nuo started the first competition training in his life.

……

Seven days later, it’s the Lantern Festival.

The training camp has all ended, and Cheng Nuo has gained a lot.

Professor Lu found Cheng Nuo, "The first round of preliminary rounds will be held in three days. Are you confident?"

Cheng Nuo said confidently, "No problem."

During the Lantern Festival, Cheng Nuo was wandering in a foreign land.

In the evening, he bought a pack of glutinous rice balls in the supermarket, risking being caught by the uncle downstairs, and cooked a bowl of hot glutinous rice balls with a rice cooker borrowed from another dormitory.On the table, there was also a special product Cheng Nuo brought from his hometown - Laoshan White Flower Snake Grass Water.

So, on the Lantern Festival when Cheng Nuo was 19 years old, he spent his time alone and cold.

…………

Another three days.

When the students began to return to school one after another, Cheng Nuo and his group of more than 100 people took several buses to the location of the preliminary competition.

The preliminary round of the National College Student Competition is held in different divisions.Just like the competition system of the high school mathematics league, only the students who won the first prize in the competition area in the preliminary competition are eligible to participate in the final.

As for the Kyoto competition area, due to the existence of a large number of institutions of higher learning such as Tsinghua University, Peking University and Beihang University, it has always been the most tragic competition area.

At nine o'clock in the morning, under the leadership of Professor Lu, more than 100 people arrived at the test center in Kyoto Division of Kyoto Normal University.

After checking the exam credentials, Cheng Nuo was let into the exam room.

At 09:30 in the morning, the exam starts.

The test time is 180 minutes, and early submission is allowed.

The test questions for the preliminary round include four fill-in-the-blank questions and five major questions.The total score is [-] points.Although the number of questions is small, the difficulty of each question is absolutely worthy of the national college student mathematics competition.

The first time he got the test questions, Cheng Nuo scanned the nine questions from beginning to end.

Moderate!

This was Cheng Nuo's instant judgment.The question types and test points are not much different from previous years. There are only slight changes in specific questions. Overall, they can only be regarded as quite satisfactory.

That being the case, Cheng Nuo lost the challenge.

"I hope the questions in the finals will be more challenging."

After muttering something in a low voice, Cheng Nuo lowered his head and began to answer the question.

【设实方阵H1=（0、1|1、0），Hn+1=(Hn、I|I、Hn），n≥1，其中I是与Hn同单位的同阶方阵，则rank(H4)=______】

The test point of this question is the knowledge points related to the diagonal square matrix.

Swish swish!
Cheng Nuo wrote the steps to solve the problem on the draft paper: [Hn is a symmetric square matrix of order m=2^n, then there will be an orthogonal square matrix P such that... the answer is obtained, rank(H4)=10. 】

3 minutes, done, next question!
…………

Outside the examination room, the rest area of ​​several school leaders.

Professor Lu from the School of Mathematics at Tsinghua University and Professor Liu from the School of Mathematics at Peking University sat together.

Professor Liu laughed, "Old Lu, I didn't expect you to lead the team this year."

Professor Lu glanced at him coldly, "It's as if you weren't the one who led the team last year."

"Ahaha!" Professor Liu didn't feel embarrassed at all, "But I was the one who won the bet last year, so I don't mind doing it again!"

Last year, Professor Lu and Professor Liu led the teams from the two universities.The two made a bet about that competition.

In the end, the university with the most first prizes in the competition will win.

And the bet is that the loser will take one month's class for free for the graduate student brought by the other party.This is what Professor Liu values.Although the mathematics department of Peking University ranks first in the country, the professors hired are not all-round in all fields of mathematics.In the field of functionals, it can be regarded as a shortcoming of Peking University School of Mathematics.

Functional analysis is an unpopular field in China, and there are very few professors studying this field.

However, Professor Lu is a master in the field of functionals, and his attainments in functional analysis rank among the top in the country.

Therefore, Professor Liu used aggressive methods to get Professor Lu to agree to the bet made last year.

And the result, of course, was no surprise.

In terms of strength, Peking University School of Mathematics is stronger than Tsinghua School of Mathematics.In the end, Peking University won eight first prizes in the competition, and Tsinghua University won six first prizes.

(End of this chapter)