Omnipotent Data

Chapter 298

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

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. You could see students walking on the road with notebooks 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 in his arms.

"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 16th 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, you have to work hard! I heard that if you can get a good result in this competition, you will get a lot of points whether it is insurance or studying abroad." Jian Yuluo smiled sweetly.

"must."

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

Open the door, the house is 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 contacted Professor Lu on the phone and told him that I had arrived at the 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 taste of the year has not dissipated.

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 the majority 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 freshman and sophomore groups are located in the lecture theater on the first floor. When Cheng Nuo slowly wandered over, there was no seat in the front row, so he just found a seat in the back row and sat down.

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

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

Seven days later, 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 competition 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 city, 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 Laoshan White Flower Snake Grass Water, a specialty product that Cheng Nuo brought from his hometown.

So, on the Lantern Festival when Cheng Nuo was nineteen years old, he spent it lonely and cold like this.

Another three days.

When the students began to return to school one after another, Cheng Nuo and his party of more than a hundred people took several buses to the location of the preliminary round.

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, led by Professor Lu,

More than 100 people arrived at the test center located in Kyoto Division of Kyoto Normal University.

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

At half past nine in the morning, the exam starts.

The test time is 180 minutes, allowing early submission.

The test questions for the preliminary round include four fill-in-the-blank questions and five major questions. The total score is 100 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.

Quite satisfactory!

This was Cheng Nuo's split-second judgment. The question types and test points of the test questions are not much different from the previous years, only the specific questions have been slightly changed, and the whole 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.

Suppose the real square matrix h1 (o, 11, o), hn+1 (hn, ii, hn), n1, where i is the same order square matrix with the same unit as hn, then rank(h4)

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

Swish Swish Swish!

Cheng Nuo wrote the problem-solving steps on the draft paper: hn is a symmetric square matrix of order m2n, then there will be an orthogonal square matrix p so that the answer can be obtained, rank(h4)1o.

Three minutes, done, next question!

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

Professor Lu from the School of Mathematics of Tsinghua University and Professor Liu from the School of Mathematics of 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 on that match.

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.

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