More than a dozen countries have divided their own country's exchange areas in the large courtyard outside the competition area, and each country's booth has a lot of writing boards and shelves, as well as translations, and there is an exhibition area to show the achievements and achievements of some countries in the field of mathematics, and the color head and exchange topics are also in the booth.

"Come on!"

"Win them!"

"Don't lose this time!"

"Don't cry, kids, let your teachers get back to the field!"

Tourists from the republic cheered them on, as well as some foreign tourists cheered on the mathematicians of their own country, and the scene was lively again.

The jackpot comes out.

The British exchange booth put out a cheque for sponsorship, or the scholarship, 50,000 pounds, which is really not low, and then a red-haired staff member of their booth turned over the question board, and everyone looked at the question, the people naturally did not understand it, and they couldn't understand it, but people from other countries' mathematical circles or those young players who came to participate in the competition could see it clearly, and knew that as in previous years, the British did not give any too difficult questions, although it was not simple, but someone must be able to answer it.

On the side of the Republic booth, it was presided over by team leader Wang Yiming and deputy team leader Xin Ya and others, Han Henian and some old-timers in the mathematics community were also there, because it was the main venue, it was the host, the scale of the booth was also relatively large, there were many people who came, and some authorities in the mathematics community were present today, some people entered the booth area, and some people did not, but looked at the topics of other countries in the courtyard.

The color head of the republic is an ink painting, which seems to be the handwriting of a famous painter in the Qing Dynasty, and the pen and ink are vigorous and delicate, and the painting is an eagle, which is very powerful and lifelike. The value of this painting should not be low, to say the least, it will be around a million. As for the topic, it is more difficult for the Republic to give this time, after all, it is the organizer, if the topic is too easy, it will inevitably be a little faceless, and it will not be answered too quickly. The topic is a geometric diagram extended from a new topic of a mathematician in the mathematics circle of the Republic, and after the discussion and research of Xin Ya, Han He Nian and others, such a question was finally decided, and it took some thought.

Japan-Ben Team ......

Korea-China Team ......

Jackpots and titles are displayed one by one.

"Wow. ”

"The rod has a good color. ”

"yes, it's expensive. ”

"The German ones are not bad either. ”

"Xiao-Ri-Ben is a little shivering, this look is not worth it. ”

I don't understand the title, but the tourists still know it, they are all pointing at the inside of the periphery, they are located on the upper part of the platform, although they can't enter the exchange area, some people pull the blockade line, only relevant personnel or media people are allowed to enter, but the exchange area and the competition area are on the platform of the following steps, from the top down, it is also very real, and there is no obstacle to the sight.

Wu Zeqing was also in the venue, talking to several leading cadres who were also colleges and universities.

Han Henian also saw Wu Zeqing coming, and he was stunned for a moment, obviously he didn't expect it, so he went over to say hello, "Principal Wu, why are you here?"

Wu Zeqing smiled, "Coincidentally." ”

The head of the mathematics department of NTU touched his beard and smiled: "Teacher Han, you are bold enough, I heard that you courted Principal Wu with Thin Shang?"

Several people in the mathematics community next to him smiled pleasantly, although Han Henian is a newcomer, his foundation is very good and promising, and many old people in the mathematics community are also more optimistic about him.

Han Henian was also embarrassed when he saw that he was mentioned, "Ahem." ”

The head of the department said: "It's not easy for our Principal Wu to chase after him, come on, if you can really catch up with Principal Wu, you will give us a long face in the mathematics world." ”

Han Henian smiled dryly: "Okay, I'll work hard." As she spoke, she paid attention to Wu Zeqing's expression, she was particularly beautiful today, and she was very dignified in a cheongsam.

Wu Zeqing still smiled so gently, "Let's work the exchange activities of the math competition first, I think it has already begun, right?"

Everyone knew that Wu Zeqing didn't like to listen to this, so he didn't dare to say more, and some jokes couldn't be made blindly.

When it came to the competition, several people in the mathematics community were all stunned, "Xiao Han, this exchange, you are going to answer the questions?"

Han Henian nodded, "I'll go first, if not, there are Professor Xin and Professor Wang." ”

A math senior said: "Lao Mei's problem, we must take it, this time we are the organizer, but the children only got a third grade, you have to work hard." After a pause, "Last year, Lao Mei's questions were not very particular, and he didn't have any intention to communicate at all, but this year it should be better, and it is estimated that there will be no more world math problems." ”

Han Henian said: "I understand. ”

Suddenly, Lao Mei's color head was the last to appear.

But when they first saw it, many people were slightly stunned.

A few golden-haired American mathematicians took out a small box, opened it, and placed it on the prize column of the booth, which was a piece of emerald green jade wrench, and hung with broken children, looking at the pulp on the wrench, it was definitely an old object, it was an old jadeite, it looked like it was hundreds of years old, it seemed to be the Qing Dynasty, the jade water at that time was not very good, and it may not be too particular about this at that time, unlike now, the glass is often planted with green and ice emeralds, but its value will definitely not be cheaper than those good emeralds now, because it is an old object！

There are connoisseurs in the crowd.

"Emerald wrench?"

"This piece is from the palace!"

"This is the wrench that went out of the palace back then?"

"Surely, this bag of pulp is hundreds of years old!"

A lot of the history of this world has not changed, the history of the Eight-Nation Alliance entering the capital to burn and loot is also there, this palace or royal jade wrench, it is likely that it was robbed at that time, and somehow it got into the hands of the American mathematical community, and this time it was taken out as a prize. Generally speaking, every mathematics contest exchange activity is also a display of the culture of various countries, most of them will take some of their own country's cultural specialties, no one expected that the old American team came to the Republic to participate in the international competition, and actually took a thing that was stolen from the Republic before to make color, and even in the Summer Palace, a place that makes people think about it!

A lot of tourists are gone!

"Holy!"

"Lao Mei did it on purpose!"

"Paralysis! This is a nose kick in the face, they are!"

Tourists and mathematicians from other countries did not quite understand why the people of the Republic were agitated and blinked in bewilderment.

Xin Ya was also angry, "What an old beauty!"

Wang Yiming, the team leader who doesn't like to talk much, also had a heavy face, "Is this a provocation?"

An old-timer in the math world pressed the fire and said: "Arch the fire! Lao Mei's problem must be solved! Let's get our own things back!"

Han Henian said with a gloomy face: "Don't worry!"

At this time, the mathematicians of the republic are extremely motivated!

The media reporters of the republic immediately pointed their cameras and took pictures with clicks, and the faces of the reporters were not very good-looking.

Wu Zeqing also saw the old jade wrench, and he didn't know what he was thinking.

Zhang Ye was also amused by Lao Mei's actions, and laughed angrily, but he noticed Lao Wu's eyes again, and suddenly his heart moved.

Emerald wrench?

Lao Wu seems to like it very much?

Zhang Ye touched the love object that Lao Wu gave him on his wrist, thoughtfully.

Over there, under the watchful eye, several mathematicians in Lao Mei opened the problem they gave this year, and when the topic was opened, a lot of cursing on the scene couldn't hold back!

"Make your heart!"

"That's it again?"

"They're not done yet, it was this last year!"

"Same question as last year?"

The mathematicians of the republic are all ugly, and the people in the mathematical circles of other countries are also frowning and shaking their heads.

At first, the tourists didn't understand how everyone reacted so much to this problem, until the college student volunteers who were in charge of the peripheral math games later said that they understood!

This is the Dale conjecture!

A math puzzle in the world!

A problem that has puzzled the mathematical community for decades!

This conjecture was first made by the United States-China-people decades ago, and countless mathematicians in the world have gone forward to calculate and decompose for decades without solving it, this mathematical conjecture has not been paid attention to from the beginning, and then has been noticed by the world, and more and more people have known the world's problems, even the tourists who watched the excitement next to them did not see anything when they saw the topic, but when they heard the words "Dale conjecture", they also suddenly realized that this is the top ten world mathematical problems in the modern mathematics world, and no one can solve them!

Lao Mei took it out?

Took it once last year, and came again this year?

This is simply no intention of communication, the people in the American-Chinese mathematics community who came to lead the competition this time may not pay attention to this activity at all, this is perfunctory, directly taking out the conjecture put forward by a mathematician in their country, this is going through the motions, preparing for the competition After the exchange is over, they will hurry back to China, and they will not take the mathematicians of other countries in their eyes at all, and they are very proud.

Xin Ya said angrily: "If you all come out with this kind of world problem, then what else is there to communicate!"

A tourist shouted indignantly: "Untie it!

"Yes, untie it! This old beauty is too deceitful!" an old man also said in a high voice.

But when they heard this, the mathematicians of the republic couldn't help but laugh and laugh and solved Dale's conjecture? If we could solve it! Why are we still standing here? We have already won a world-class mathematics prize! We have to wait until this kind of exchange to solve it? This is a conjecture that has stumped the mathematical community all over the world!

Lao Mei is not particular!

Wang Yiming Xinya They all knew that the jade wrench in the palace couldn't be taken back, but they couldn't say anything, after all, Dale guessed that it was indeed proposed by a mathematician in Lao Mei, and they took it out to show it at the exchange event, and it was impossible to find out why!

A British mathematician shook his head, "American-Chinese people are too ungentlemanly." ”

A French female mathematician said: "There is no point in coming up with this kind of problem. ”

Everyone knows that there is no solution, and mathematicians from all over the world have turned their eyes away from the problems of the United States and people and looked at the problems of communication in other countries.

There is only one exception, Zhang Ye.

Zhang Ye stared at the so-called "Dell Conjecture" for a long time, he hadn't heard of the four-character name of the Dell Conjecture in this world, but the content of this conjecture made Zhang Ye stunned, hey, why is it a little familiar?