Chapter 55

The final phase of the winter camp is scheduled to be held on February 26 and 27.

The rules and timing are consistent with the IMO.

The CMO competition is divided into two days, four and a half hours a day.

There are a total of six questions, and candidates are required to answer three questions per day.

The difficulty of the questions is similar to that of the IMO.

The only difference between CMO and IMO is in the scores of the test questions.

IMO has seven points for each question, for a total score of forty-two points.

However, in order to conform to the cognitive habits of Chinese people, the CMO changed the score of each question to 21 points, so the total score became 126 points.

But none of this is important.

The important thing is that according to the results of this CMO, the Chinese Mathematical Society will select the Chinese national team composed of 6 official players and 1 substitute player among the remaining 97 players to compete in the IMO.

In the international competition, win glory for the motherland.

They are all seventeen or eighteen-year-old hot-blooded teenagers.

Win glory for the country, these four words are enough to make their adrenaline soar.

One by one, as if they had been beaten with chicken blood, they have been preparing for war for the past few days.

It's cool to burst the liver for a while, and it's always cool to burst the liver.

Everyone is doing their best to qualify for the national team.

……

The night before the Chinese Mathematics Olympiad.

More than a dozen coaches gathered at a table in the hotel to eat.

"Coach Zhao, you should be stable this time for the national team leader, right?" a very old coach gestured to Zhao Kun with a wine glass and said with a smile.

"I think it is also, based on personal ability and teaching level, the leader of the national team must be Coach Zhao. The other team leader echoed with a smile.

Of the dozen or so people present, except for Zhao Kun, the rest of the coaches have long since withdrawn from the ranks of the first echelon of competing for the national team leader.

But Zhao Kun is different.

In terms of personal strength, apart from Gu Lu's pervert, among the remaining more than 60 coaches, Zhao Kun is enough to rank in the top two.

In terms of teaching ability, there are still nine provincial team members left in Jiangsu and Zhejiang Province, and this number is only behind the Modu Provincial team.

Therefore, as long as there are not too many players in the Jiangsu and Zhejiang provincial teams in the next two days, Zhao Kun is very likely to get the seat of national team leader.

That's why everyone took this opportunity to come over and stammer.

was boasted by several people, Zhao Kun was a little fluttering, but he still waved his hand modestly, "It's inconclusive, before the results come out, no one can say who the position is." ”

"Apart from Coach Zhao, who else is qualified to sit in that position?" a coach spoke, "Can it still be Gu Lu? There are only two students left in his provincial team!"

"Hahaha, Lao Wang is right. No matter how good Gu Lu is, can he still let both of his students be selected for the national team? This is nonsense at all!" the other coach laughed heartily.

Originally, mentioning the word "Gu Lu" made Zhao Kun's originally happy mood a lot duller.

But when listening carefully to what the audience said, and then thinking of Gu Lu's current situation, I couldn't help but feel happy in my heart.

What's the use of being strong in personal strength, in the end, it's not like you're going to lose to me!

Zhao Kun has already thought about it.

When he gets the position of national team leader, he must go to Gu Lu to show off.

In this way, we can get rid of the depression in my heart that has been crushed by Gu Lu's madness in the past month.

…………

On February 26, the CMO officially kicked off.

Exams are held in the afternoon.

The time is from one to half past five.

Four and a half hours, three questions.

On average, each question takes an hour and a half.

This time may seem like a long time.

For these 96 top students, it is no problem to brush up on three or four sets of college entrance examination papers in an hour and a half.

But for the difficult Olympiad questions, this time is just enough.

"Teacher Gu, it doesn't look like you had a good rest last night!" Zhao Kun walked over with a smile and came to Gu Lu with a pair of dark circles under his eyes.

Gu Lu patted Bi Qi and Ma Zhengxuan on the shoulders on his side, and when he saw the two of them walking into the examination room, he turned his attention to Zhao Kun.

The corners of his mouth curled, "Teacher Zhao looks good today!"

Zhao Kun smiled and said, "If you are in a good mood, you naturally look good." ”

"It's you, Teacher Gu, were you too worried about the performance of your provincial team members last night, so you stayed up late and didn't sleep?" Zhao Kun leaned in front of Gu Lu, "Teacher Gu, this is not good, I think you should look away, your body is the most important!"

Gu Lu did stay up late to sleep last night.

However, it is not that I am worried about the performance of Bi Qi and the others, but that I am ...... Rush the papers!

That's right, the paper on the proof of the Cohen-Lenstra conjecture is just over two months away from the deadline for the mission.

But at the moment, due to the recent preoccupation with the winter camp aspect, the Cohen-Lenstra conjecture is not yet halfway through.

Considering that there are still a few days to go abroad in the future.

Gu Lu can only experience the comfort of staying up late to catch up with his thesis again after a year.

"I'm not worried about the performance of my two players. Their strength, I rest assured. Gu Lu smiled.

"Could it be that Teacher Gu, you still stubbornly believe that those two students of yours can create miracles and both enter the national team. ”

"It's not a miracle, it's a fact. ”

"Huh. Zhao Kun shook his head, "Then Zhao, just wait and see!"

After speaking, Zhao Kun turned his head and left.

Gu Lu just looked at Zhao Kun's back calmly and smiled faintly.

"Will let you see. ”

Gu Lu whispered to himself.

…………

[Let X be a 56-element set, find the smallest positive integer n, so that for any 15 subsets of X, as long as the number of elements of any 7 of them is not less than n, then there must be 3 of these 15 subsets, and their intersections are not empty.] 】

This is the first question of the first day.

Many candidates who are enthusiastic in their hearts are like a basin of cold water falling down and becoming calm down the moment they see the question.

Next, start thinking about how to solve the problem.

The first question is relatively simple.

But after an hour and a half, more than half of the students were still stuck on the first question, and their thoughts were confused.

For these people, it can be said that they have completely lost the qualification to compete for national team players.

If you want to enter the six-member national team, according to the standards of previous years, the total score is 126 points, and you must get at least 110 points or more.

Getting a question wrong with a score of 21 points means failure.

Bi Qi's heart was like water, and he took the scratch paper unhurriedly, lay down on the table and began to calculate.

With the experience of the high school math league, Bizzie has developed an exam personality of guarding against arrogance and rashness.

When answering the question this time, he didn't want to make many unnecessary low-level mistakes because of carelessness like last time!

………………

PS: The reward amount has been increased to 15 yuan!

[A balance has several weights with integer mass, which needs to be able to weigh any whole weight object from 1g to 55g.] If you remove any two weights, the remaining weights will always be sufficient. Excuse me, how many weights does the balance have at least, and how much do they weigh?

This was yesterday's question, and no one has made it yet.

Is there a big guy to try it today, if not, I'll ask again tomorrow. (๑•̀ㅂ•́)و✧