On the second floor of the training team.
Not only Ren Guohai, there were also a few other big shots that he did not know. Ren Guohai introduced them to Principal Li and Ye Feng: "These are the professors of the Mathematical Olympiad Organizing Committee. The questions this time were personally drafted by the professors.
You have to do your best later. Don't embarrass me!”
Ye Feng nodded calmly, he also knew that Ren Guohai was taking a huge risk to recommend him. If he could not satisfy these big shots, not only would it affect Ren Guohai's reputation in the national team, even Principal Li and An Xin would be affected.
Thinking of this, he felt a little pressured, but thanks to his deep foundation, Ye Feng managed to calm down quickly.
"Hello, teachers. I'm really sorry to have troubled everyone to come.”
As the saying goes, a person's appearance is the first impression, and then the second impression is when he speaks.
Ye Feng's appearance was tall and handsome, he was sunny and handsome, people liked him, plus he spoke politely and sensibly, this made everyone present acknowledge him.
However, academics were the most rigorous, everything was based on results, so everyone's final attitude would depend on Ye Feng's results.
This time, everything was done according to the standards of the International Mathematical Olympiad. There were a total of six questions, each with seven points, and a full score of 42 points.
A total of 4.5 hours to answer the questions.
Ren Guohai and the others did not say exactly how many points they had to score to pass, but Ye Feng heard from Anxin that the lowest score for the national team was 25 points or above.
An Xin was even selected with 41 points, one point away from full marks.
And Ye Feng guessed that if he wanted to be accepted into the training team, he had to have at least 35 points, otherwise, it would be meaningless to go through so much trouble.
Of course, Ye Feng would not do it just for a mere 35 points, his goal was to get full marks.
Yes, a full score higher than Anxin's.
Ye Feng was brought to an independent room by Ren Guohai and pointed at the table inside.
"The test paper has been placed on the top. There are a total of six questions and the time is 4.5 hours. I hope you can do your best.”
Ye Feng nodded slightly, he nodded at Ren Guohai to express his gratitude for his help.
The small room was not big, less than 10 square meters. There were three walls and only one side had a window.
In the middle were six test papers, a box of pens, and a complete set of tools.
It looked quite scary. If it was an ordinary child, they would probably be nervous and lose their composure.
However, Ye Feng heaved a sigh of relief, he sat down and started the national training team's exceptional exam.
Ye Feng took the question and glanced at it, he was shocked.
These were obviously the standard questions for the International Mathematical Olympiad. They were much more difficult than the questions An Xin had shown him in the national competition.
These big shots were sincere, right? However, on second thought, it was an exception for him to take the exam. If he were to have the same difficulty as the other students, it would be too unfair to them.
Thinking about it this way, it was understandable. Moreover, it was just difficult, not that he did not know how to do it!
Thinking of this, Ye Feng started today's exceptional exam.
In the room outside, a group of professors were all sitting on the sofa, in front of them was a television, it was showing the surveillance footage of Ye Feng doing the questions.
"This student's mental fortitude isn't bad.”
"Yes, I can see that this environment itself gives people a great sense of oppression. He can keep his expression unchanged.”
"I hope it will give us a surprise! China hasn't won the Mathematical Olympiad for three years in a row.”
"Isn't the question too difficult? That's the standard of the International Mathematical Olympiad.”
"It can't be helped. It's already May now, so there's not much time for him to train. If he can't score more than 35 points, then it's meaningless.”
Principal Li and Ren Guohai's expressions did not change, they had already done what they needed to do, it was up to Ye Feng to see if he could achieve what he wanted.
In the small room, Ye Feng was doing his homework.
Although the questions were difficult, to the current Ye Feng, it was not a problem, he just needed to spend some time.
Most of the time, it wasn't that he didn't know the answer, but that he couldn't write down all the answers and possibilities.
For example, this question:
Given an integral N> 2, n (N 1) soccer players of different heights stand in a row. The coach of the team wanted to remove N(N-1) players from these players so that the remaining 2N players in the row met the following N conditions:
(1)There were no other players between the two tallest players.
(2)There were no other players between the third and fourth tallest players.
.......
(N)There were no other players between the two shortest players.
Proof: This can always be done.
Ye Feng knew the answer, but it would take a lot of time to think of all the possibilities and write them down.
This was also the reason why the Mathematical Olympiad competition only had six questions, but the answer time was as long as 4.5 hours.
And for this question, Ye Feng thought for a while and found the answer: "
Divide all N(N 1) players into N groups according to their height. The tallest N 1 player is the first group. The next group is
N 1 people as the second group…The shortest N 1 person was the coach of the Nth group. He observed the players from left to right until he found two people in the same group for the first time.
Assuming that A1 and A2 are in the same group,A1 is on the left of A2, and A1 and A2 are both in group T1, the coach will let A1 and A2 stay.
.............
...........
... He skipped the long answer.
In the end, there were 2N players left, A1, A2, A2N, from left to right in the queue. There were exactly two players left in each group, and there were no other players between the two players left in each group, so the conclusion was valid.
Therefore, most of the time, the difficulty of Mathematical Olympiad questions wasn't that you didn't know the answer, but that you didn't know how many answers and how many possibilities there were. You had to write down all the answers and possibilities to get a full score.
Thus, Ye Feng became serious for the first time.
This book is provided by FunNovel Novel Book | Fan Fiction Novel [Beautiful Free Novel Book]