Become a master from now on

Chapter 173 Four people are confirmed! (Ask for a monthly ticket subscription!)
The days of the national training team are still going on. Up to now, most of the players have gone, and the remaining players are all selected from the elites. The elites, referred to as Jingjing.

So far, among the players counted by Shen Lang, four of them have basically been confirmed to be selected for the national team this time.

Fang Chao, five exams, five out of five, a total score of 150.

There is no doubt that with his strength, Fang Chao will be the captain of the IMO national team this time, leading this group of players to the UK.

Yes, this IMO competition is set on the Empire on which the sun never sets.

Although the Empire on which the sun never sets has its turn every few years, the location of each competition is different. The final location of this International Mathematical Olympiad is Bath.

In this training camp, Fang Chao has been affirmed by all the contestants with his strong strength. He can basically hand in the papers 5 minutes earlier in every exam, and he can also guarantee the accuracy of his answers. Such a person Come to be the captain of the six-person team, and the others will not have any dissatisfaction at all.

Because if it were any other person, I am afraid that they might not have the influence of Fang Chao, and I would feel a little uncomfortable in my heart.

In addition to Fang Chao, Zhang Tiannan, Jin Zixuan, and Xiao Zizhan had almost no controversy and became three of the six candidates.

Zhang Tiannan took five exams, one with a full score, and the rest of the scores were above 25, with a total score of 135.

Jin Zixuan took the exam five times without a full score, but the overall score was also above 25 each time, with a total score of 133.

Xiao Zizhan took five exams and got full marks twice. His poor performance in the first two times did not affect his subsequent performance, with a total score of 129 points.

Compared with Fang Chao's 150 points, these people are indeed a little behind, but they are still strong enough, because the test is not to say that these players can't do it, but that the time is limited and they must complete the most questions within the specified time. And the one who is correct is the winner.

Except for Fang Chao, Zhang Tiannan, Jin Zixuan, and Xiao Zizhan, the rest of the dozen or so contestants are still to be determined, because their scores are not outstanding enough, and their overall scores are almost similar, so if they want to continue to stand out, only Get a higher score in the next test.

Most of these people's scores are between 110 and 125.

……

Now, according to the questions on the blackboard, you are not allowed to rush to answer. I will ask questions. You all look at the blackboard. After 2 minutes, I will ask questions.

Professor Lin spoke. He is 37 years old and is in the rising stage of his career. He is also a gold medalist with full marks in an IMO mathematics competition. He is a doctoral supervisor at Peking University and has achieved achievements in mathematics and chemistry. Once a paper aroused widespread attention in the society, and its chemistry "Life Department Player" was even more popular once it was published, and was sought after by countless people.

At the same time, he also led the national team to participate in this year's IMO Mathematical Olympiad as the head coach of the national team.

While Professor Lin was speaking, he started drawing on the blackboard.

On the x, y, z three-dimensional plane, there are two circles of different sizes.

Its specific screen is shown in the figure below.

(brain supplement~)

2 minutes later.

Professor Lin named them.

"Cai Cai, what would you do if I were to solve this problem for you? Give me an idea to solve the problem."

Cai Cai's real name is Han Cai, but we have been getting along for a long time, and we are used to calling each other on weekdays. Professor Lin also calls each other by Cai Cai on weekdays.

When Han Cai heard this, he stood up immediately and said, "Professor Lin, for this question...for this question, do we need to use the Pythagoras theorem first...and then...then...then..."

"Then what?"

Professor Lin continued to ask.

"Then...then...then..."

"Cai Cai, sit down."

Professor Lin had no choice but to speak and asked Han Cai to sit down. If it was just a Pythagorean theorem, this question could only be regarded as one step completed. This step is not easy, but where is it?In the national training team, the rest of the dozen or so players are carefully selected mathematics players. If they can only think of the first step, they are simply too bad. This makes Professor Lin quite disappointed. .

Among the entire training team, only Fang Chao, Zhang Tiannan, and Jin Zixuan are satisfactory. As for Xiao Zizhan, although he has been determined to be one of the six-man group with a high probability, this kid is too random and is a player who can perform on the spot. Once the mentality collapses in the IMO competition, it will probably affect all subsequent performances, but once Xiao Zi is allowed to compete, everything will go smoothly. It is not difficult to get a high score in the IMO competition. .

As for the remaining players, it is a big problem to select two more players to complete the final six-member group. It always feels like a mistake to choose who to choose, because the level is too similar, and they must be screened again. From these 12 players Ten people were eliminated from the list, and the last two will form a national team with Fang Chao, Zhang Tiannan, Jin Zixuan, and Xiao Zizhan to compete in the IMO event of the Empire on which the sun never sets.

"Lin Dong, get up."

Lin Dong stood up, "Professor Lin, I thought of Pythagoras' theorem and Brahmegutta's theorem for this question, but that's all I can think of, other aspects... well, I haven't figured it out yet. , maybe the time is too short, if you give me some more time, I can definitely figure it out."

"Lin Dong, it's ok, then you come up first, and write down the ideas you think of to solve the problem on the blackboard."

"Yes."

Lin Dong nodded, walked to the blackboard, picked up a piece of chalk, and then began to move the chalk.

He drew two more circles on the side of the question, in the same coordinate system, and then began to answer.

He wrote the questions very quickly. After finishing the auxiliary lines, he immediately started to solve them.

When the first ten steps came out, Professor Lin also nodded, and the rest of the contestants also looked stunned.

"So it is."

"I understand."

"Lin Dong is still okay..."

But when the No.11 step came out, Professor Lin's expression changed instantly.

The second person whose expression changed at the same time was Fang Chao.

Lin Dong made a mistake!
The previous steps are correct, but when you come out from the No.11 step, even if you are correct, you have already taken a detour. If you continue like this, it will be a waste of time.

Fang Chao's level is not as high as Professor Lin's. Professor Lin reacted instantly, and it was not easy for Fang Chao to understand after only two seconds of Professor Lin's reaction.

(End of this chapter)