It was already half past 12 noon when the first exam ended, and the organizer had already prepared a buffet, collected the papers, and the first day of the exam was over.

The eight people of Huaxia are in front of a round table, and the food has long been placed in stainless steel trays. The two leading teachers wanted to speak several times, and the students' faces were not good-looking.

Mr. Qian's heart sank, and it took him three hours to finally make the last question, and the initial idea was that he had gone astray, and he didn't expect it to be so complicated.

"This is analytic geometry, a simple application of algebraic geometry that students usually say, can be done. If you are a freshman or sophomore, this question will not take more than an hour. If you use the knowledge points of high school, it is too difficult. ”

Mr. Qian is not optimistic about the results of today's competition, the only thing that is fortunate is that students from other countries are estimated to be unable to do it, and everyone is still at the starting line.

"Morale is low. Teacher Zhou also found the problem, since he didn't play well on the first day, he had to be well prepared on the second day, otherwise the impact would be greater.

He glanced at Mr. Qian and asked the latter to say a few words of encouragement, and Mr. Qian understood and coughed: "En......"

"Goo...... ...... "Yang Fan swallowed a few mouthfuls of soup and exclaimed comfortably: "I'm dying of thirst." ”

I didn't eat a drop of water for four hours, and my physical and mental strength were competing. The soup with a good taste was under the stomach, Yang Fan's appetite was shocked, and he began to eat it.

The organizer has no shortage of funds, the buffet food is quite rich, and Yang Fan selects high-quality seafood and high-end meat, which cannot be filled with a large pot.

Teacher Zhou frowned, what a student who lacks roots and tendons, doesn't he know that he can't swallow it? Everyone is worried about his grades, how can he eat it, and he is so greasy.

"But the mentality is really stable. "Teacher Zhou has mixed feelings.

Teacher Qian's eyes lit up, and he almost cried out with joy, how could he forget this. After a few days of contact, Mr. Qian really understood Yang Fan's roots.

Not to mention artistic talent, mathematics seems to be one level higher than that of ordinary students, especially the conversion of music and mathematics, which requires quite deep mathematical knowledge.

Teacher Qian pretended to put a few shrimp from his dinner plate in front of him, showed an amiable smile, and said, "Yang Fan, how are the three questions today?" After a pause, he pointed to the remaining students and said, "Let's talk about it too, while eating." ”

As soon as these words came out, the students opened up the conversation and began to complain.

"The first two questions are okay, but the third question is not completed. ”

"Yes, the third question must have missed the conditions or the question is wrong, no matter how it is calculated. ”

"There are several ways to calculate, and the answer is different every time, and I am afraid that the American questioner will be embarrassed. ”

......

Several students said that it was difficult, and they all said that it was not right, and Mr. Qian made several of their mistakes when he checked the calculations, and he knew in his heart that this time he was unlucky, and maybe only one person had a chance.

Teacher Qian's eyes turned to the side, and Yang Fan was eating with his mouth full of oil, and he had no intention of speaking at all.

Mr. Qian was full of black lines, and just as he was about to ask again, the discussion of the American team separated the two tables came over.

"Shhhh The index gestured to his lips to silence, and hurriedly pricked up his ears to eavesdrop.

The Huaxia team members said they understood, bowed their heads and ate silently.

"How are you doing?" said Frederica, the American team leader, with whom Mr. Qian had been in contact many times.

"It's hard not to make it. ”

"I always feel that the answer is wrong. ”

Teacher Qian and Teacher Zhou glanced at each other and saw a surprise in each other's eyes, but fortunately, everyone was about the same.

"I just asked the organizers, and it seems that I got the order of the second day and the first day wrong, and the last question today is actually the most difficult one. Frederica said.

"Phew. Teacher Qian scolded, Nima Americans are really out of tune, and there are such mistakes.

I remember one time in the United States, because the process was not rigorous, all the questions for two days were decentralized, and each did its own thing, and in the end, it could only be invalidated, and the six questions were reissued, which was a waste of time for students and teachers.

At this point, Mr. Qian paid attention to whether the game should continue or do it again.

"Those three questions are the same for all countries today, and they will continue tomorrow for everyone. Frederica was in a bad mood and was not in a very good mood.

Not to mention China and the United States, looking around this cafeteria, there is a solemn atmosphere, teachers and students are bowing their heads to eat, there is very little discussion, and everyone is not happy.

"It's not good to be a teacher. Teacher Qian sighed.

"I'm full, it tastes average. Yang Fan picked up a toothpick to pick his teeth, the frying of the steak was a bit old, and there was too much seafood and garlic. All kinds of bad reviews.

The gauze on my hand was removed this morning for the topic, and the wound was mostly healed. In the past few days, it has been inconvenient to eat, but today I finally got it in one step and made up for a few days.

"Ahh With a full burp, the smell of garlic soared to the sky, and Mr. Qian next to the smoked ground really wanted to run away.

Teacher Qian endured the discomfort and asked patiently: "Several of them said that the question was wrong, Yang Fan, how do you feel about what you did?"

"That's an interesting question. That's right, you can do it. Yang Fan replied with a big grin.

As the words fell, several pairs of eyes glared at him at the same time. Questioning, bragging, troublemaking, all kinds of emotions.

Don't say that the students don't believe it, even Teacher Zhou doesn't believe it, and said: "I thought about this question and didn't feel right, I didn't continue, Teacher Qian spent it...... It took an hour to get through, did you have time to calculate?"

Teacher Zhou still saves some face for his peers, if the teacher spends three hours, then the students are afraid that they will not be able to do it in the same time, plus the first two questions, there is not enough time to think about it.

"Teacher Zhou, don't add glory to me, just say that I almost didn't make it. If you think that the inspiration is practical for less than two hours, I am afraid that the conditions of the question will be distorted. ”

Mr. Qian continued to explain, "There are four angle conditions, the figure is a triangle, and when I have a clear geometry problem, I always think that I need to add a dotted line, an extension line, draw a circle, and so on. That Yang Fan, tell me your solution. ”

The trust in Mr. Qian's words is seen in the eyes of everyone sitting down, and he doesn't ask whether it's right or wrong, and directly asks Yang Fan to explain the answer, which is too exaggerated.

"It's not really geometry, it's algebra. Yang Fan said.

"What?"

"No way. ”

Seeing that several students were incredulous, Yang Fan continued to explain: "The geometric solution is not right, no matter how many geometric solutions are used, the answer is not uniform every time. It can be seen here that the person who wrote the question is quite skillful. ”

"It is necessary to apply angles reasonably, and then judge the proportion of lines according to angles, so that the problem becomes algebra...... I took a total of 64 steps to solve it, and the answer is 35 degrees. Teacher, right?"

After listening to Mr. Qian, he really wanted to look up to the sky and laugh, and even Mr. Zhou was unexpectedly surprised.

Seven or eight hundred of the world's top high school students are here, and at most three of them can make it. And there is one person in Huaxia who does not prove the excellence of Huaxia in mathematics more than this.

"Actually, 64 steps is really cumbersome, I have listened to analytic geometry for a while, and if the Olympiad allows it, the steps of this problem can be reduced to 19 steps, which is really different. High school math is really just elementary math. ”

Of course, in order to be afraid of others picking on thorns, exceeding the outline, etc., Yang Fan finally chose the way of high school.

The five students of the same generation were all dumbfounded, and they couldn't help but think in their hearts: What's the big deal, I can do it in the future after learning analytic geometry in college.

"Well done, it's a brilliant measure. ”

Teacher Qian patted the student's shoulder fiercely to express his praise, and even the students were a little unconvinced, let alone other countries.

"The ability to go beyond the outline is allowed in the Olympiad. But if you are the only one who uses the superprogram to solve this problem, it is a fluke and luck, and it may not be convincing. Only with high school methods can you prove that you are a strong high school student. ”

Discussion is discussion, the past cannot be changed, Mr. Qian comforted a few words, and prepared for the next day's competition.

Everything was normal the next day, the Huaxia team was very strong, and after calculation, it was very likely that one person would get a full score, two people would deduct more points, and the middle three people would basically deduct less points for five questions.

The final result will have to wait for the award on the third day.

In the Olympiad competition, the medals are divided into two pieces, individual and team. Individuals who reach a certain score line, 30 points and 42 points can actually win the gold medal.

The total score ranking of the group compares the strength of the country.

Early in the morning of the third day, Mr. Qian and Mr. Zhou were very nervous, this year, they can't be compared to the Americans, otherwise it will be difficult to explain to the country.

The only consolation was that one student pulled the total score by 6 points first, and when I heard that there were probably two students who got it right, the other was of Russian Indian origin.

Also today, at eight o'clock local time in the United States, two world-renowned magazines were released worldwide.

A report about the world's top people - Time Magazine.

A book on the world's top mathematics - nature.