In less than half an hour, Xu Chuan had solved all the questions, but it was still too early to hand in the paper. Although he could hand in the paper in advance, the competition in Shonan Province had regulations, and the paper should be handed in half an hour in advance at most.
With nothing to do, Xu Chuan first checked the test paper. After confirming that there were no problems, he looked around at the status of other people.
A pretty young lady on the right was writing furiously. He didn’t know where she was, but her excellent eyesight told him that she was not answering questions, but sketching and drawing on the draft paper.
It's still a Kun.
The child on the left who he noticed before was less than 1.4 meters tall, holding a pen in his mouth and staring at the test paper with a look of despair on his face.
Well, it seems that this kid is here to experience whether the food at the High School Affiliated to the Normal University is delicious, and I don’t know which school sent it to him.
In addition, there was a big brother in front who nodded his head bit by bit, once every two seconds on average, and then got shocked in the next half minute, shook his head violently, forced himself to be clear, and the cycle continued.
As for the back, Xu Chuan didn't know. After all, if you turn around and look at the back, there is a chance that the invigilator will think you are cheating.
After staying up for more than half an hour, it was finally time to hand in the papers in advance. Xu Chuan decisively stuffed his student ID card and admission ticket into his pocket, handed in the papers in advance and left.
As for other people who are still struggling in the examination room, it has nothing to do with him.
And from a certain perspective, he allows candidates who have not yet finished answering the questions to have a more relaxed exam environment in advance, which helps them improve their scores.
The rest time is not long, even for students who hand in papers in advance, it only lasts for more than half an hour, while those who wait until the end to hand in papers can only take ten minutes at most to drink water and go to the toilet to satisfy their personal physiological needs.
"I'm afraid most of the students will have to settle for this exam, and I don't know how many will get full marks."
The round-faced Lu Tianrui saw Xu Chuan with sharp eyes and waved his hands excitedly.
In the first test, the two of them were able to solve a few questions, but when they got the test paper in the second test, they were immediately stunned.
In terms of difficulty, this year's first test has been ranked in the top three or even first in the past ten years. This year's second test is not only more difficult overall, but also has a super finale question.
The experts who set the question this time are really ruthless. Putting aside the combinatorial identity, at the level of No. 1 Middle School, about ten of the more than thirty students should be able to get full marks, but with this identity added, not to mention ten
Okay, apart from him, if anyone else can get full marks, it would be a very good result.
Not to mention I did it, I couldn’t even understand the questions in the second test.
"Brother Chuan, here."
Hearing this, Gong Rihui suppressed the smile on his face and asked.
Although it only has four questions, it involves plane geometry, algebra, number theory, and combinatorial mathematics. The difficulty level has also been raised from slightly more difficult than the college entrance examination to a real competition level.
"The questions this time are much more difficult than those in previous years. They tested combinatorial identities and mixed in probability theory. The difficulty is not low. I'm afraid there will be many fewer people who get full marks." Xu Chuan took the water and unscrewed the bottle cap and drank.
He took a sip and said calmly.
Judging from the questions, according to Xu Chuan's personal judgment, the difficulty is much higher than the previous test.
The first test is a small kiss for Star City No. 1 Middle School. More than half of the more than 30 students got full marks. After all, the difficulty is only slightly higher than the college entrance examination.
Shaking his head, Xu Chuan filled in his name and admission ticket number, and then started to do the questions.
When they arrived at the designated rest area, waiting outside were not only their leading teacher Gong Rihui, but also some students who had also submitted their papers in advance.
Compared with the 80 minutes for the first test and less than an hour and a half, the test time for the second test was extended to 150 minutes, which is two and a half hours, which is nearly half the time.
After more than half a month of intensive training, he saw the mathematical skills and talents of the student in front of him, which was simply surprising and doubtful.
The proof of this combinatorial identity, even if it is put into the national finals, is very difficult and the final one.
As usual, after getting the test paper, Xu Chuan still browsed through all the questions.
Four questions, four test papers, one for each test.
This can be seen from the children and young ladies on the left and right.
Compared with the first test, the second test is much more difficult.
Four questions, two and a half hours of exam time, an average of a little more than half an hour per question.
If he is not sure of getting full marks, then Star City No. 1 Middle School may be completely wiped out this time.
"Take a rest, drink some water, and prepare for the second try."
You can tell from the extended time that the difficulty has increased more than just a little bit.
Sometimes when discussing certain issues, when Xu Chuan puts forward some ideas and opinions, he even feels like he is communicating with his peers, no, it feels like he was communicating with his lecturers in college.
In the competition, probability theory is a relatively unpopular knowledge point, which is completely different from popular knowledge such as geometry. Geometry exists every year, but probability may not be encountered once every few years.
Gong Rihui smiled and handed over a bottle of water without even asking how the exam went.
The second test is where the strong ones are truly selected.
The finale is the last question, which is to prove a combinatorial identity. To solve this combinatorial identity proof requires at least nine combinatorial identities. It not only tests Yang Hui's triangle and Veda's three special types of equation expansions, but also mixes in probability.
In theory, the level of complexity is so high that it should not appear in a preliminary competition like the second test.
Plane geometry tests Fermat points, algebra tests intersection operations, number theory tests functions, and combinatorial mathematics tests combinatorial identities.
It was still the familiar routine of handing in papers in advance, but this time, when he returned to the rest point, only the teacher Gong Rihui, who was leading the team, was waiting here.
"Are you sure?"
"How was the exam?" Gong Rihui asked with a smile and handed Xu Chuan a bottle of water.
After reading the questions, Xu Chuan shook his head. In the past half month of training, he had finished all the CMO competition questions in the past ten years and the competition questions in the preliminary examination.
In addition, the difficulty of the question can be seen from the number of students who submitted the paper in advance. Generally speaking, the more people who submit the paper in advance, the easier the question will be.
Many students who can participate in the competition, even if they don't know how to do it, have to wait until the end of the exam. After all, no one can say that inspiration will suddenly come to them in the last half hour?
Of course, students who can’t even understand the questions come here to experience the atmosphere every year.
No, there were a few students around me who, like Xu Chuan, handed in their papers in advance, and complained all the way that the questions were too difficult, so they wrote the word "solution".
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