This scumbag is not easy

Qin Fei got out of the car with Liao Yanmei's help.

After stepping on the ground.

Qin Fei has no big problems.

The Mediterranean teacher gathered everyone together and briefly explained.

"Everyone brings all the test supplies, as well as the admission ticket. Quickly follow the map to find the test room where you are located. The test is about to take ten minutes. After the test, everyone will come out and gather here, and then have a meal together before going back."

Everyone panicked after listening for ten minutes, after all, they didn't step on the scene.

Everyone is unfamiliar.

I don't know if I can find the examination room smoothly.

"The teacher, what if we can't find the exam room?" A student estimated that he was always pampered, expressing concern.

"If you are such a big person, and you can't find the test room in ten minutes, you don't need to take the test, just come back directly, it will be useless for you to take the test.

The Mediterranean is not that kind of Mabao teacher.

Sent back.

Sure enough, very character.

Qin Fei likes it very much.

So everyone is not talking nonsense.

Asking is also a waste of time.

Disperse separately.

Find your own examination room.

Qin Fei watched Liao Yanmei stay still.

The expression is very anxious.

I want to ask people but dare not.

Look at the map and the surrounding objects.

I'm about to cry..

It seems that there is no direction.

Just like Cao Ying.

I don't know if Cao Ban has arrived in the provincial capital.

.....

"What's your exam room number."

Qin Fei thought for a while, walked over and asked her.

"My number 10."

Liao Yanmei took a look at her admission ticket and said.

"It's such a coincidence, I'm also the No. 10 examination room, you just follow me."

After Qin Fei looked at the map, he walked straight forward.

"really?"

Liao Yanmei was overjoyed and looked sad, and trot behind Qin Fei with her small schoolbag on her back.

She looked up at Qin Fei's back from time to time.

Suddenly feel very safe.

This experimental middle school is a newly built school.

The address is located on the outskirts of Longhuai City.

So the land here is probably not very valuable.

The campus is too big.

It is estimated to be more than three times that of Longhuai No. 1 Middle School.

Each teaching building is far apart.

The two walked quickly for about seven or eight minutes.

Go up to the seventh floor of a building.

The preparation bell for the exam is ringing.

Qin Fei stopped and said, pointing to an exam.

"Here, this is the 10th examination room. Go in quickly."

Liao Yanmei was relieved and was very happy to go inside.

It was discovered that Qin Fei not only did not come in.

Instead, he stepped back.

Flew downstairs and left.

Liao Yanmei only realized later.

This Qin Fei is not this examination room at all.

He was just to bring himself here.

Liao Yanmei did not rush into her examination room either.

Stop by the balcony of the corridor.

Look downstairs.

Soon I saw Qin Fei's figure.

Galloping out like a horse.

Anxiously ran back.

It was completely different from his calm look just now.

His examination room was obviously long gone.

Liao Yanmei couldn't see Qin Fei's handsome figure.

Only then slowly walked into his examination room.

I don't know why.

Full of heavy touches.

....

Qin Fei is certainly not the No. 10 examination room.

And Examination Room No. 1

It's just that Liao Yanmei is a road idiot.

Just help her.

How do you say that others also helped yourself in the car.

The blessing of dripping water will return to the spring.

But when Qin Fei took this Liao Yanmei to look for the classroom.

I also paid attention to the location of my examination room.

So soon Qin Fei came to the door of the examination room.

Five minutes have passed since the official exam time.

The examiner saw Qin Fei sweating profusely.

Not much is difficult.

After a brief check on the admission ticket, it was released.

Qin Fei sitting in the position.

Do not read the paper anxiously.

First calm down your mood.

Also, let the sweat evaporate first.

So as not to stain your own papers.

The test time is from 9 to 11 o'clock.

Two full hours.

In fact, this is for most people.

It's not enough.

But for Qin Fei now.

That is more than enough.

This is the confidence brought by strength.

at last.

Wait for the body to cool down.

Qin Fei began to scan the paper gently.

The test paper includes 10 fill-in-the-blank questions and 5 answer questions. Each fill-in-the-blank question is 5 points, and each answer question is 10 points.

Qin Fei after reading the paper.

Frowned.

There seems to be something wrong.

These topics....

It's not that Qin Fei pretended to be forced.

It's surprisingly simple.

It is simpler than the paper that Chen Xinru wrote silently last time.

Far below Qin Fei's expectation.

Moreover, there seems to be a question in it, which is the original question on the paper written to Chen Xinru.

.....

Qin Fei narrowed his eyes and suddenly thought of something.

Could someone really steal the question?

It is still said that the teacher happened to hit him.

Anyway.

Long Huai was over when he hit the top.

Qin Fei curled his lips, stopped thinking, and started writing immediately.

It's all done.

The first question looks very cumbersome, but it is actually very simple. It is a conversion between a square difference formula and a stacked fraction, and it is completed in 30 seconds.

The second question is to investigate the conversion of trigonometric functions, sinx+cosx=root of two, the result of sin^4x+cos^4, is actually a question of bringing in squares. It is finished in one minute.

For the third question, let (1+x+x^2)^n=a0+a1x+a2x^2+...+a(2n)X^2n, then a1+a3+a5+...+a(2n -1) is equal to how much.

This question is a bit more troublesome. Qin Fei turned his nose and assigned the formula.

(1+x+x^2)^n=a0+a1x+a2x^2+...+a(2n)X^2n

Let x=1, 3^n=a0+a1+a2+a3+.......+a(2n-1)+a(2n)

Let x=-11^n=a0-a1+a2-a3+........-a(2n-1)+a(2n)

3^n-1=2[a1+a3+a5+...+a(2n-1)]

a1+a3+a5+...+a(2n-1)=(3^n-1)2

The answer was reached in about two minutes.

The fourth question, ah, there is something, it is a geometric body... but it is also a spicy chicken.

The fifth question is the application of the Descartes sign rule.. Remember to brush it in the system task.

Question 6... Let alone, it's too simple.

It took about half an hour.

Qin Fei completed all the multiple-choice questions without feeling any particular obstacles.

Next.

It's time to solve the problem.

The difficulty of solving the problem is slightly higher.

One is the sequence of numbers to be investigated, the other is the proof of geometry, and the other is the mapping and set of investigations...there is the original problem, and Qin Fei doesn't even want to look at it.

The sequence is still the old one, find the maximum and minimum.

The geometric proof question Qin Fei directly used Barochevsky's drawing method, and after calculating the degree, it was not a big problem to extend the proof congruence.

Only the mapping and collection of the last question are slightly new.

Suppose S is a 35-element set, F is a set composed of some mappings from S to S, and the set F satisfies the property P(k). If any x and y belong to S, there are f1, f2, ... , Fk belongs to F (can be the same) such that:

fk(fk-1(···(f1(x))))=fk(fk-1(···(f1(y))))

Try to find the smallest positive integer m, satisfying: If F satisfies the property P(1024), it also satisfies the property P(m).

Consider X={(x,y): x,y belong to S,xy}, define f((x,y))=(f(x), f(y), from the meaning of the question, there is (a, a ) Belongs to X, so that any (x, y) can go through several mappings...

....

There are almost 40 minutes left.

Qin Fei finished all the test questions.

It is impossible to check.

It's impossible in this life.

Qin Fei did not have this habit either.

....

So Qin Fei started observing the people around him when he was free.

In the examination room.

All beings are diverse.

Some bite the pen.

Some gnaw fingers.

Some scratch their scalp.

Some shake thighs.

Some pinch people.

Some handjobs.

"Don't look around!"

The invigilator came to Qin Fei and reminded him in a low voice.

Qin Fei nodded obediently, and then asked.

"Can I hand in the paper in advance?"

The teacher is stupid.

He has been involved in Mathematical Olympiad exams for more than 30 years.

This is the first time I encountered such a request.

And look at his test paper.

It's really finished.

.....