Chapter 55

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

The rules and timing are consistent with IMO.

The CMO competition quarters are held in two days, four and a half hours a day.

There are six questions in total, and candidates need to answer three questions every day.

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

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

Each IMO question is seven points, with a total score of forty-two points.

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

But none of this has anything to do with Daya.

Importantly, the Chinese Mathematical Society will select a Chinese national team composed of 6 formal players and 1 substitute player based on the results of this CMO, among the only 97 remaining players, and compete in the IMO.

In the international competition, we will bring glory to the motherland.

They are all passionate teenagers of seventeen or eighteen years old.

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

They all seemed to be injected with chicken blood, and have been preparing for the battle these days.

It's a good time to burst out, but it's a good time to burst out.

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

...

The night before the Chinese Olympic Mathematics Competition.

A dozen coaches gathered at a table in the hotel for dinner.

"Coach Zhao, you should be stable in the seat of the national team leader this time, right?" An elderly coach picked up his glass and signaled to Zhao Kun, and spoke with a smile.

"I think so, in terms of comprehensive personal ability and teaching level, the national team leader must be Coach Zhao," another team leader also agreed with a smile.

Apart from Zhao Kun, the other coaches present had long since left the first tier of competing for the national team leader.

But Zhao Kun is different.

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

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 Magic City Provincial Team.

Therefore, in the next two days, if there are not many players in the Jiangsu and Zhejiang Provincial Team making mistakes, Zhao Kun will be very likely to win the seat of the national team leader.

Therefore, everyone took this opportunity to come and stutter.

Zhao Kun was a little fluttered when he was bragged by several people, but he still waved his hand modestly, "There is no conclusion, before the result comes out, no one can say whose position is."

"Who is qualified to sit in that position except Coach Zhao?" One coach said, "Can it be Gu Lu? There are only two students left in his provincial team!"

"Hahaha, Lao Wang is right. No matter how powerful Gu Lu is, can he still make both of his students be selected into the national team? This is simply nonsense!" Another coach laughed happily.

Originally, the word "Gu Lu" made Zhao Kun feel much more happy.

But after listening to the audience carefully, when they thought of Gu Lu’s current situation, they couldn’t help but feel relieved.

What's the use of being strong in your personal strength? In the end, you will lose to me!

Zhao Kun has already thought about it.

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

In this way, the depression that has been crushed by Gu Lu over the past month can be relieved.

…………

On February 26, the CMO officially started.

The exam is held in the afternoon.

The time is from 1:00 to 5:30.

Four and a half hours, three questions.

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

This seems like a long time.

For these 96 academic masters who have been selected by everyone, it is fine to finish three or four sets of college entrance examination papers in one and a half hours.

But for difficult Olympic Games, this time is just enough.

"Teacher Gu, I didn't look good last night!" Zhao Kun walked over with a smile and came to Gu Lu with a pair of dark circles.

Gu Lu patted Bi Qi and Ma Zhengxuan on the shoulders beside him. When he saw them walking into the examination room, he turned his eyes to Zhao Kun.

His mouth bent, "Teacher Zhao looks good today!"

Zhao Kun smiled and said, "I feel in a good mood, so I naturally look good."

"It's Teacher Gu, are you too worried about the performance of your provincial team members last night, so you stayed up late and didn't fall asleep?" Zhao Kun came to Gu Lu, "Teacher Gu, this is not OK. I think you should be more open-minded. Your body is the most important thing!"

Gu Lu did stay up late last night before going to bed.

But it was not because of Bi Qi and his team's performance, but because they were... rushing to the paper!

That's right, the paper on proving the Cohen-Lenstra conjecture is only more than two months left before the deadline for the task.

But at present, as we have been considering winter camp matters recently, the progress of the Cohen-Lenstra conjecture to prove it is currently less than half.

Considering that it will take several days to go abroad in the future.

Gu Lu can only experience the comfort of staying up late to rush to papers again after a year.

"I'm not worried about the performance of my two team members. I don't feel at ease with their strength." Gu Lu smiled.

"Teacher Gu, you still stubbornly believe that your two students can create miracles and both join the national team."

"This is not a miracle, it is a fact."

"Haha." Zhao Kun shook his head, "Then Zhao, let's wait and see!"

After saying that, Zhao Kun turned his head and left.

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

"It will let you see it."

Gu Lu murmured to himself softly.

…………

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

This is the first question on the first day.

Many candidates with passionate hearts calm down when they see the question as soon as they see the question.

Then, we began to think about the problem-solving method.

The first question is a relatively simple question.

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 members.

If you want to enter the national team with six players, according to the previous standards, the total score is 126 points, and at least 110 points must be scored.

As long as you make a mistake with a question of up to 21 points, it means failure and elimination.

Bi Qi was as calm as water, calmly took the draft paper, and leaned on the table to start calculating.

With the experience of the high school student mathematics league, Bi Qi has developed a test character of being arrogant and impetuous.

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

……………………

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

[A balance has several weights of integer mass, which is required to weigh any integer heavy object of 1g to 55g. If any two weights are removed, the remaining weights can still meet the needs. May I ask, how many weights are there in the balance, and how many of them are they?]

This is yesterday's topic, and no one has done it yet.

Is there any big guy who can try it today? If not, I will ask again tomorrow. (???????)?
Chapter completed!