I Don’t Want to Win Lying Down

professor!

Your explanation is very exciting, every process is very careful, and there is no sloppiness. Xu Mang said seriously: Just now I came up with a question, which requires a very solid mathematical foundation and strong logical thinking ability, I hope that you and the members of the representative team will try to solve this problem.

Um?

Let me see. The professor asked curiously.

words fall,

Xu Mang handed the paper to the professor.

a moment later,

The professor who was originally relaxed looked a little serious now.

Ahem!

When did you come up with the question? the professor asked seriously.

just...

I came up with a question randomly. This question requires logical thinking ability... Xu Mang said with a smile: It's useless to have a solid mathematical foundation. If you don't have a strong mathematical thinking, this question is a bit difficult. Incomprehensible.

...

Did you come up with this question just now? The professor was stunned for a moment: Just came up with it casually?

yes!

Professor... Do you think this question is suitable for the contestants? Xu Mang asked.

The professor nodded and said silently: Very suitable!

so...

Let me solve it first. The professor said, Then let the participating students solve it. What do you think?

oh.

words fall,

Xu Mang sat back in the last row.

Looking at the young man's back, the professor was a little curious. If all this was true and he was not lying, then his mathematical talent would be extraordinary. Why didn't he participate in the competition?

It doesn't make sense!

nothing more,

Ask later.

The professor started to solve Xu Mang's problem by himself, but soon he discovered the problem. Although it was an algebra problem, he couldn't find a breakthrough.

after,

The professor tried a complicated solution, and finally spent seventeen minutes, and then reversed the answer based on the answer to get a relatively simple process, and it happened to be the end of get out of class at noon.

Seeing that Xu Mang was about to leave, the professor hurriedly stopped him.

classmate!

Wait a minute! the professor shouted at Xu Mang, Are you still coming this afternoon?

Well...

Come on! Xu Mang nodded, and said with a smile, The professor unlocked it?

Untied.

But I want to know what your answer is. Let's talk about it this afternoon, said the professor.

oh.

...

noon,

Xu Mang and Yang Xiaoman were eating in the school cafeteria. The five of them were curious about the conversation between Xu Mang and the professor, but no matter how they asked, Xu Mang kept smiling and didn't tell anyone about the conversation with the professor. things, including Yang Xiaoman.

For this,

Yang Xiaoman was very unhappy, a little emotional.

The main reason is that it's a bit embarrassing...it's my boyfriend, but I keep it a secret from myself...in front of so many people.

at the nearby Starbucks,

Yang Xiaoman ordered a cup of hot fruit tea, and sat on the chair without saying a word, with the three characters 'unhappy' written all over her face.

Yang Xiaoman: (#￣～￣#)

...

What? Xu Mang was playing with his phone, looked up and saw this scene, and asked strangely, Who bullied you? Tell me... beat him into a pig's head!

Yang Xiaoman glanced at it, and said angrily: Then you can beat yourself.

...

So it's me? Xu Mang suddenly realized, and said helplessly, I'm pretty honest today...

snort!

You make me unable to step down in front of others. Yang Xiaoman said angrily.

Xu Mang frowned, counting the days... Today seems to be the day when Xiaoman comes to relatives, so I can't afford to mess with him... Last time I suffered a big loss.

In the face of a woman who comes to relatives, the best solution is to not speak and endure her little emotions silently, because at this time, no matter what you do is wrong, there is no way... there will always be so many times a month. God is irritable.

After crackling and complaining, Xiaoman got emotional release.

Little Man?

Well?

Did you... visit relatives? Xu Mang asked cautiously.

...

It seems that he came here in the middle of the night last night. I was scared to death this morning. Yang Xiaoman suddenly asked mysteriously: By the way, how do you count my life so clearly? Do you have any bad intentions?

No!

Hehe... drink tea, drink tea.

soon,

It's afternoon time.

Xu Mang rushed to the forefront, happily came to the training room, and found that the professor was already there.

Hello Professor.

Come here? Seeing Xu Mang coming, the professor nodded and said, Come and see my problem-solving process, right?

oh...

Xu Mang picked up the professor's problem-solving process and read it carefully. There were basically no mistakes, and then he said seriously: Professor...you are worthy of being a master in the field of mathematics. You are completely correct and there are no mistakes.

At first I couldn't solve it, then I went around a big circle, and finally reversed it, and got the simplest process. The professor looked at Xu Mang and said seriously, Your ability to come up with questions impresses me!

Hehe... Xu Mang smiled, I'm just a student.

By the way, what's your name...

Halfway through the professor's speech, Yang Xiaoman and others came to the classroom. Immediately, the professor stopped talking and said silently: Let the contestants do the problem first, and then you can help them analyze the process and solution ideas yourself.

oh.

Xu Mang returned to his seat in the last row and lay down on the table.

Ahem!

I'll give you an hour to solve a math problem!

words fall,

The professor wrote down the topic on the blackboard.

Use Z to express the set of all integers, and find all functions f: Z → Z, satisfying that for any integer a and b, there is f(2a)+2f(b)=f(f(a+b))

at this time,

Everyone present was stunned, including Yang Xiaoman.

this...

What function is this?

after,

The five contestants started their own problem-solving process, but the process was very difficult because the form of the function could not be determined at all.

Since they couldn't find the beginning, the five of them fell into a predicament where they couldn't move forward almost at the same time. Now they don't even know what this function is, and they are even more at a loss and puzzled below.

Who gave this title?

kill him!

etc,

In the morning... there seemed to be a guy who got very close to the professor, right?

at this time,

Everyone thought of one person, and he was Xu Mang.

I'm afraid Xu Mang didn't ask this question, right?

The more I thought about it, the more I realized it was possible, otherwise Xu Mang wouldn't have discussed it with the professor for a long time, so angry... What the hell is he doing!

wrong!

Since Xu Mang came up with this question...couldn't it be that his math ability has already...

Thinking of this,

Except for Yang Xiaoman, the other four gasped. Xu Mang was hiding it so deeply, maybe he wasn't the real main player, right? Since he is so powerful, why was he not selected into the team?

Unscientific!

Very unscientific!

for a long time,

five minutes passed,

The five people are still in a state of confusion. They have tried countless functional forms, but still have no hope.

ten minutes passed,

The five people still had nothing to gain, and they began to despair in the face of this function that could never be known.

fifteen minutes,

Yang Xiaoman seemed to get some inspiration, she started to write and make a new attempt.

Forty-five minutes later,

The four of them were inspired and began to write vigorously. Yang Xiaoman had just solved this problem, but the process was very complicated, and it took three blank sheets of paper to solve the problem.

finally,

When the allotted time was up, the five turned in their answers to the professor.

Under revision,

The professor found that only two people were correct, and only one of them, Yang Xiaoman, was the closest to the reasonable process, but only the closest, and did not fully meet his requirements.

gap!

This is the gap!

at this time,

The professor called Xu Mang out of the corridor. He wanted to know who this student from Fuda was and why he didn't participate in the competition.

classmate?

You... what's your name? the professor asked.

I?

Xu Mang, a student of the Physics Department of Fuda University. Xu Mang said with a smile.

...

You are Xu Mang?! The professor was stunned for a moment, then laughed loudly, I should have guessed it was you, it was my mistake.

words fall,

The professor suddenly put on a serious face, stared at Xu Mang and said, Why don't you participate in the competition? With you here, our ranking can be raised. The first place is not a problem, are you shrinking?

No.

It's the competition that suspended me. Xu Mang sighed, and said silently: They said that I didn't meet the requirements and couldn't participate in the competition. Once I participated, the competition would become no suspense, so they suspended me directly. ..”

hear here,

The professor patted Xu Mang on the shoulder, and said helplessly, The so-called restriction trick has started again.

at the same time,

Yang Xiaoman is being bombarded indiscriminately by his teammates.

Xiaoman, why is Xu Mang so strong?

Yeah...why didn't he play?

Are you timid?

How high is Xu Mang's math talent?

Faced with a flood of questions, Yang Xiaoman didn't know how to answer for a while, so he could only smile wryly: This guy is...a smart idiot.

In Yang Xiaoman's eyes, Xu Mang is an idiot, so stupid that he can't describe it in words, because when they first met, the image of an idiot was deeply imprinted in Yang Xiaoman's heart, and he couldn't get rid of it for the rest of his life .

And clever...neither much to say.

...

...

...

This answer obviously does not meet the requirements of the four people, because this answer is full of love, and it is a bit suspected of spreading dog food.

At this time,

The professor and Xu Mang came in, and they stood in front of the podium. The professor said, I guess everyone has guessed it. The question that stumped you all was made by this classmate, and this classmate came from the review center. Big, his name is Xu Mang, you should have heard of it.

Extraordinary achievements have been made in the field of physics, two academic papers in SCI District 1. The professor said, But don't forget that Xu Mang's mathematical talent is the same as his physics.

Xu Mang?

Tell them the way to solve this problem, and I'll take the class by the way. The professor smiled at Xu Mang, and then walked down the stage.

Yang Xiaoman was about to say, professor...you will regret it, but the professor went directly to the stage without any melancholy.

Seeing Xu Mang on the stage with a smile on his face, Yang Xiaoman's head grew big...Don't make your teammates shut up, it won't hurt!

classmates!

This question is very basic and not difficult at all. Xu Mang said with a smile, This is a sub-question!

As soon as the voice fell,

The four students present were very angry, and they planned to raise the knife.

at this time,

Yang Xiaoman: (°ー°〃)

over

He's about to start!

 …