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

And as long as you read this question, students can be sure that this is a very difficult Mathematical Olympiad question.

Xu Zongyun, "Everyone, I was very excited when I found this question, but after searching for a long time, I still couldn't find the answer."

"What are you looking at?!"

"Ask for advice! Ask for thighs!"

Everyone teased, "You have your brother's thighs, and you still think about us?"

Xu Zongyun, "I can see clearly how powerful my brother is! Such a question is a hell mode that is even more difficult for us! But for my brother, this is one plus one equals two, there is no need Go bother him..."

Everyone, "!!!"

"Uh... not so much, right? This question is an Olympiad question, you call Xu Heng to come out and take a look!"

"This question should be a bit difficult for him!"

Xu Zongyun, "Don't try to lie to me! Last time you coaxed and lied to me! I was terribly hurt by you!"

"You don't want to lie to me this time!"

Everyone laughed, but they also revealed a fact, "Even if we solve the key question, there is no answer. We can only ask Xu Heng to give us a standard answer! Isn't it?"

Xu Zongyun was moved by what he said, not to mention, he also wanted to know the standard answer to this question.

With nearly 1000 people in the group, everyone highly recognized Xu Heng's answer!

Xu Heng is the standard answer!

There is a mistake?

Surprise?

impossible!

Produced by Xu Heng, standard answers are required.

Just when Xu Zongyun was hesitating whether to find Xu Heng privately, or @许假 in the group, Xu Heng spoke up.

"Half an hour, I will give you the answer."

Everyone's first reaction was, "Half an hour? Oh my god, is this problem that difficult? Most Xu Heng has to do it for half an hour, don't we have to do it for two or three hours!"

Xu Zongyun was also stunned, "I'll go! This is the first time I've seen my brother take a question so seriously!"

"I feel like I can buy a lottery ticket!"

Lord,"!!!"

"I'll go! Xu Heng unexpectedly needs half an hour to solve this problem!"

"Really? Am I not mistaken?"

"Someone come and slap me twice, let me wake up, let me know that this is not a dream!"

Feng Hechuan, "Extend your face!"

Dong Fangyuan, "I'll go and see this question!"

Wang Mengyao, "Is this question interesting? It actually took Xu Heng half an hour?"

All the students who looked at the chat records became curious.

"It's the first time I've seen Xu Hengda take 30 minutes to solve a problem!"

"That's right! Even in the International Mathematical Olympiad, Mr. Xu Heng can only answer one question in less than 20 minutes!"

"Is this question really that difficult?"

"@许宗云, post the title again! The message was sent too fast, I can't even see it!"

Group owner, "@许宗云, pass it to the group album."

Xu Zongyun uploaded it again, and everyone looked at the question.

"Hiss...it's really difficult!"

"Yes! There is a certain degree of difficulty!"

"It's indeed a little harder than the questions I had when I participated in the Mathematical Olympiad!"

"It's tricky! How do I do this?"

"..."

Everyone said what they said, and combined analysis of this question, but there was no result...

Because they don't know where to start.

Xu Heng looked at the chat records, the corners of his eyes twitched, "%￥#@#￥......"

"You played me on purpose, didn't you?"

"I just asked, don't you need time to do the questions?"

"When you take a question, do you want to look at the answer?"

Three rhetorical questions appeared in the group.

In an instant!

The group is quiet!

Many of them were stunned halfway through typing.

The corners of their eyes twitched fiercely, their fingers trembling.

"This, this, this... what does this mean?!"

"hiss!!!"

"I am damn! Nima!"

"Fuck shit shit shit shit shit!"

Only then did they realize what Xu Heng meant.

The "half an hour" that Xu Heng said was not for him to do the questions himself, but to give time to everyone in the group!

Give everyone in the group half an hour to answer the questions!

Everyone, "!!!"

Xu Heng, "Besides, how difficult is this question? Your acting skills are too clumsy, right?"

puff-

Everyone really wanted to vomit blood.

"Where is it difficult? It is really difficult!"

"Master Xu Heng, this question is really difficult!"

"We didn't play you!"

"We're really not actors! Why don't you believe us!"

Xu Heng, "I don't usually see you complaining?"

Everyone, "%￥#@#￥%￥..."

"@东方圆, hurry up and comment! What do you think of this question?"

Dong Fangyuan, "This question...is difficult!"

Xu Heng, "@东方圆, pull it down, you've changed too, it's so simple!"

"I think so!"

Suddenly, a man with the ID of Hongjing Army stood up and supported Xu Heng.

Xu Heng, "That, that, that! Look, there are still some people who stand up and dare to tell the truth! It's not difficult at all, you did it on purpose!"

The group leader and others cried and yelled again and again.

"Master Xu Heng, just be yourself!"

"This is a teacher! Oh no! He is a professor of mathematics who once worked at Tsinghua University and Peking University! He also worked at the National Academy of Mathematics and is an academician!"

"He naturally thinks this is very simple!"

What the hell!

professor?

academician?

The group leader said, "You haven't been in the group for a long time, so you naturally don't know the existence of this academician Hong! We didn't know it at first, but his name is very special. The surname is Hong. We originally checked to see if there is such a thing." Surname, but I found the person directly!"

"We verified it. They are real. They are all over 70 years old now!"

"@红景军, Mr. Hong, you saw it, this is our Xu Heng!"

"Xu Heng is ridiculously strong, and he abuses people so badly!"

Looking at the attitude of the group leader, it seems like he is suing his parents.

Many people in the group, even the students from Qingbei respected the Hongjing Army very much.

Of course, this is not a question of age, but the importance of this old mathematician to Tsinghua University, Peking University, and even the promotion of national mathematics innovation.

He took classes at Tsinghua University and Peking University, and also stayed at the Institute of Mathematics.

"@许健大大, Old Mr. Hong could have been the dean of the Institute of Mathematics back then, but he took the initiative to let Xian!"

Xu Heng, "Hello Hong Lao."

Hong Jingjun, "@许健学习, hello, hello, seeing is better than hearing a hundred times!"

puff-

a professor!

wrong!

A legendary figure actually appeared in this group!

Seeing so many people in the group surrounding the Hongjing Army, Xu Heng felt that the Hongjing Army and them had become one.

It is simply the king of children.

However, Hong Jingjun's character is indeed a bit of an old urchin.

When I grow old, I can still talk and laugh with this group of people, and there are many topics to talk about.

Xu Heng, "@All Members, you've seen it too, Mr. Hong said it was simple! Don't play me anymore!"

"If I really solve this problem in 30 minutes, I will really learn it!"

The group leader broke it down on the spot, "@许健大大, you haven't learned at all..."

Xu Heng, "*%￥@￥￥%..."

Make him feel bad all over.

Many students in the group complained to the Hongjing Army.

Xu Heng rolled his eyes at everyone, "You just have to do it! Let me tell you, Mr. Hong has already said it, it's easy!"

"@红景军, Mr. Hong, right, the answer to this question is 100, right?"

Red King Army, "???"

"Wait! Xu Heng, I said simple, I didn't say I knew the answer!"

"Aren't you calculating too fast?"

Xu Heng, "???"

He had a bad premonition, he always felt that this red old man could turn against the water anytime and anywhere...

Xu Heng's whole body is not well.

"Forehead……"

The focus of everyone's attention was more on Xu Heng.

"K=100? I'll go! Xu Heng, is this a joke? He really gave the answer!"