Xueba, I beg you to go and escort him quickly!

The conditions are sufficient!

The students looked at this type of question, and their eyes lit up.

Stories and math combined!

After watching all of them, except for the moment when their eyes lit up, everyone was frowning and frowning.

Because apart from the fact that this question seems to be related to "fairy tales", it should be very beautiful!

But in fact, this question does not feel good at all.

All the students were stunned.

Including Dong Fangyuan and Wang Mengyao.

They examine the questions carefully!

Review the questions carefully!

Watch it for the first time...

Watch it a second time...

Watch it a third time!

Someone started to scratch their heads, "I feel more and more that this question is not friendly to us!"

"Xu Heng is so good or bad!"

"Use the most fairy-tale sheepskin to come up with the most wolfish topic! Woooooo!"

"That, that... May I ask everyone what is the Euclidean plane?"

"The Euclidean plane is what we learned in plane geometry! That's not the key! The key is this question!"

After finishing this question, Xu Heng put down the chalk and said loudly, "Everyone, think about it slowly. I will discuss it with you half an hour before the end of evening self-study!"

Just when he was about to return to his seat, Xu Heng found Zhou Moyan.

Zhou Moyan appeared at the end of the classroom.

He didn't have a seat, so he stood at the back, and Fu Xidong and his classmates were with him.

Xu Heng went over, "Hi, seniors."

Zhou Moyan, "I heard that you were studying by yourself last night, and I wanted to come and see you, but I didn't expect you to be in class..."

Xu Heng, "It's not really a class, at most it's just asking each other questions and learning from each other."

Zhou Moyan and the others looked at the question on the blackboard.

"interesting……"

Looking at the students who came with him, "Are you interested in reading that question?"

These people came to see Xu Heng.

Zhou Moyan, "Hey! Don't be dazed! People have seen it too, let's read the question!"

These people, "%￥##￥..."

Although Fu Xidong is from the Department of Physics, he was also admitted to Tsinghua University!

Besides, those students, even if they are not from the Department of Mathematics, since they can become Tsinghua students, they are not vegetarians!

"Let's try the real questions of the high school Mathematical Olympiad!"

At this time, some students reminded with a smile, "It's not the real question of the Olympiad, it's the question made by Mr. Xu Heng himself!"

These Tsinghua seniors and sisters looked confused.

"Wait, wait a minute, you said this question was written by Xu Heng?!"

"That's right! Xu Heng made a big deal!"

"You probably don't know about the fact that Xu Heng went to Peking University to join the Mathematics Olympiad competition, right?"

"Professor Zhu has already said that if not for all the teachers in the test-examination team blocking it, Xu Heng's big questions would be even more difficult, more profound, and more evil!"

Zhou Moyan's scalp was numb, and Fu Xidong and the others gasped.

They had suddenly heard that Xu Heng had participated in the paper-making group.

But they didn't expect Xu Heng to be mature enough to give such a perfect answer to the topic!

A student from Tsinghua University said, "Hiss! I always thought that Xu Heng was going to study in a question group or to give some multiple-choice questions, or to fill in the blanks... so hasty!"

"Impressed!"

The seniors and sisters of Tsinghua University looked dumbfounded, and gave Xu Heng a thumbs up at the same time.

The students watched and laughed too.

They also have moments of confusion!

Everyone in Zhou Moyan, "%￥##..."

Students in Mathematical Olympiad class, "Hahaha..."

Time flies!

Xu Heng swiped his phone for a while, checked that the time was almost up, got up and went to the podium.

"Clap!"

She clapped her hands to attract the attention of the students.

But at this time, the students all lowered their heads and were answering this question!

They don't want to be interrupted.

Xu Heng, "Everyone, can you be a human being? Let me finish talking soon! After I finish speaking, I can go back..."

"Hey Hey hey?!"

"Everyone look up! Hurry up! This question has a complicated train of thought, otherwise I won't be able to finish it before school is over!"

"..."

Many people raised their heads reluctantly.

Beauty can be twisted into twists.

Xu Heng, "Well, after I finish this question, I will leave another one for you. You can go back and think about it slowly, okay?"

That's all for now!

This group of students snuffed out their thoughts one by one, and looked at Xu Heng helplessly.

Xu Heng, "%%#￥#￥..."

"You guys are going too far! Is it because you're not satisfied with thinking? But I've given you enough time."

Enough time?

!!!

Everyone looked at each other!

Including Zhou Moyan and the others.

Feng Hechuan, Luo Jianing and others looked at Zhou Moyan, Fu Xidong and others.

The 99 students in the class collectively turned around and looked towards the back.

"Seniors and sisters, you can't say that Xu Heng is too much!"

"How long has it been? He said enough time?! Seniors and sisters, have you made it?"

This is a question from the soul!

Zhou Moyan almost turned around and left.

"Forehead……!"

Fu Xidong stood up to resolve the embarrassment at this time, "It seems that we have underestimated student Xu Heng! This problem, I am afraid that not only students from the mathematics department can solve this problem! Isn't it, Senior Zhou?"

Zhou Moyan, "Ahem! This, this..."

Feng Hechuan exposed it on the spot, "You are classmates of Tsinghua University!"

"If I remember correctly! Senior Zhou, if it's from Class Yao..."

Zhou Moyan's face turned dark.

I'm from Yaoban!

But the main thing I study is not mathematics!

In addition, even if I specialize in mathematics, the time given by Xu Heng is not enough to solve the problems!

impossible!

Absolutely impossible!

The corners of Zhou Moyan's eyes twitched fiercely, and he gasped, "Hiss..."

Too embarrassing for him!

I was stumped by a question posed by a junior!

How embarrassing it would be if it got out!

Feng Hechuan turned his head to look at Xu Heng, and he yelled, "Brother Xu Heng, please give me some more time! You see, Senior Zhou and this group of seniors from Tsinghua University have not figured it out yet, so..."

Xu Heng, "They are not from the Department of Mathematics, nor do they study Mathematical Olympiads. It is understandable!"

"I'm talking about the topic!"

"Don't worry, I'm embarrassed to procrastinate!"

But in the hearts of everyone, there are 1 people who are willing!

"I beg you to delay the class! Student Xu Heng! Oh, no, Teacher Xu Heng!"

PS: Thanks to [Tail Number 1627] [Tail Number 5479] [Di Bao] for their support!thank you!

There are updates! .

Chapter 201

Feng Hechuan was the first to take the lead, shouting, "Teacher Xu Heng! Please wait!"

All the students also echoed, "Mr. Xu Heng! Please delay the class! Give us some more time!"

"Yes, Teacher Xu Heng! I've already done half of it!"

"I think Dong Fangyuan has already written four or five pieces of acting papers, I guess he will do it soon!"

Dong Fangyuan stood up abruptly, lowered his head, and said helplessly, "I'm sorry, I can't figure it out! I'd better invite classmate Xu Heng to explain it!"

"For me, I haven't got the right idea within this time, which means that no matter how long it takes, I won't be able to do it."

"Instead of wasting time, it's better to listen to Xu Heng's train of thought!"

Dong Fangyuan has always had a strong awareness of himself.

He knew how much he weighed, this question was really tricky!

At this moment, he finally understood why Zhu Tiesen repeatedly emphasized Xu Heng's questions, and was suppressed a lot by the examination team.

After Dong Fangyuan said this, many students who didn't recognize themselves lowered their heads helplessly.

They don't think they are better than Dong Fangyuan!

So they all stop struggling.

Xu Heng wrote while talking.

"For this question, the hunter cannot guarantee that the distance between the rabbit and the rabbit will not exceed 10 after 9 (100th power) meetings!"

"First set dn=AnBn."

"If there is already dn≥10 for a certain n≤9 (nineth power), then after that, the rabbit only needs to jump back to the hunter along the line connecting it and the hunter every time.'