Chapter 118: Predicting the Topic
"The test questions on the first day were not that difficult. Not to mention the first question, the second question was just a little more complicated in calculation. As for the third question, it involved physics, which I happen to be good at, so it didn't take me too much time." Su Yi said.
Professor Huang didn't know that Su Yi was also good at physics, and was a little surprised: "You also study physics?"
"I'm planning to participate in the Physics Olympiad in the second half of the year and want to give it a try."
Several other students: "..."
Even the other two teachers were surprised.
Professor Huang exclaimed, "I thought you were just good at physics, but I didn't expect you to be so good at it. So, we really have an amazing genius!"
Su Yi was a little embarrassed: "I'm just interested in physics."
"Go back to your room and have a good rest. We'll find a place to sit in the afternoon and I'll treat you to coffee." Professor Huang said with a smile.
The stronger Su Yi showed, the happier they were.
After all, IMO has always been participated in by national teams, and the performance of each player will be ranked comprehensively. The higher the ranking, the better the country's level of mathematical development.
Although China has maintained its top three ranking in recent years, it has not won the championship for several years. Its best result was a silver medal. However, this year they produced two talented players. Both Su Yi and Yang Shu scored full marks, and there is great hope that they can regain the championship.
After a nap, around three o'clock in the afternoon, the group left the hotel and found a nearby outdoor cafe. They sat by the river and looked at the Eiffel Tower in the distance. It was a unique experience.
Professor Huang made a corresponding summary based on each of their answers today, and Su Yi also put forward his own views to help them predict the questions.
In fact, IMO actually has a theory, and naturally there is a so-called answering routine, but the routine is much more profound and obscure. Su Yi has almost finished all the IMO test questions in the past, and even had an AI smart tutor to set questions, so after the first day of exams today, she has almost sorted out a routine.
Although Su Yi ranked second in the IMO finals, she scored full marks in the subsequent training and even handed in her paper early. She deserved the title of the Big Devil, and they all subconsciously regarded her as loyal.
So, when Su Yi listed the knowledge points, they all listened very carefully. Professor Huang also listened and occasionally put forward some unique insights.
With the summary of Professor Su Yi and Huang, everyone is more confident.
The exam time on the second day was the same as yesterday, starting at 8 o'clock. I don't know if it was because the news of Su Yi handing in her paper early yesterday spread, but there were several more invigilators in her exam room today.
Su Yi got the test paper, but she didn't rush to answer the questions. Instead, she went over the three questions first, and she actually guessed the answer to one of them!
It is a plane geometry problem.
Let R and S be two distinct points on the circle Ω, and let RS not be the boundary. Let L be the tangent line to the circle Ω at point R, and let T be a point on the plane such that: point S is the midpoint of line segment RT, and J is a point on the minor arc RS of the circle Ω...
Proof: Line KT is tangent to circle r.
Although what she explained was not exactly the same as this question, the proof steps were similar. Anyone who could sit in this examination room was a carefully selected genius elite who could understand things immediately.
So getting full marks on this question should not be a problem.
Su Yi finished it in less than twenty minutes.
Her extremely fast problem-solving speed attracted the attention of the invigilator, who finally stood next to her and stared at her closely to confirm that she had really completed the task independently.
Although there has never been any cheating in the history of IMO exams, there are few contestants who can answer questions as quickly as Su Yi, so they have to be cautious.
Su Yi didn't care and continued to look at the second question.
The second question is a sequence question. Sequence questions are popular in IMO and CMO exams, but most of them are just the same old story in a new bottle. They can be discussed according to different situations. As long as the convergence of the sequence can be proved, the formula can be proved.
The second question was still within Su Yi's control.
What really made Su Yi feel the difficulty was the last question.
Magic Invisible Rabbit: A hunter and an invisible rabbit play a game on the Euclidean plane. The rabbit's starting position is known...
The difficulty of this question is much greater than the previous five questions, even Su Yi finds it difficult.
However, difficulty does not mean that it cannot be solved.
She began to write rapidly on a piece of scratch paper.
As soon as Su Yi started writing, the invigilator began to observe her carefully, trying to find out if she had any unusual movements, but soon shock appeared in his eyes.
Because except for the first ten minutes or so of thinking, Su Yi's hand holding the pen never left the draft paper, and he didn't even stop to think in the middle.
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