On the second day, the written test competition officially started. The full score of the entire test paper was 200 points. The question types were divided into five fill-in-the-blank questions, each worth ten points, and seven answer questions. The first six questions were worth 20 points each, and the last one was worth 20 points. Questions are worth 30 points.
From the distribution of scores, we can roughly see the difficulty level of the questions. It is easy first and then difficult, and the scores gradually increase.
Although the Chinese national team has a total of seven players, two of them are substitutes and can only play if other players have accidents. However, they are in good condition now, so the five previously scheduled players will participate in the game, namely: Su Qingyun, Chen Zheyu, Chen Ru, Mu Qiu, Li Siyuan.
In the written examination, more than 200 participating team members from dozens of countries and regions were all arranged and distributed in several examination rooms. The examination time lasted for three and a half hours.
Doing twelve questions in three and a half hours seems like plenty of time, but in fact the time is very tight. This is not an ordinary question. It requires a lot of calculations and is very difficult. It takes less time to review the questions, think about them, and actually write them. Less, not to mention the time it takes to complete the entire question and check later.
For three and a half hours, every team member needs to race against time, but they also need to keep their minds absolutely calm and be fast and good in order to get a good result.
Team members from different countries are in the same examination room, and the language on the test papers is different. They cannot understand each other at all, so the possibility of cheating is basically eliminated.
In the huge classroom, all the participating team members held their breath and stared at the invigilator on the stage... The unknown feeling on the test paper in their hands made everyone's hearts rise.
After the invigilator handed out all the test papers, he looked at the time and finally said: "The exam has begun, please start answering."
Everyone held pens and immersed themselves in reading the test papers.
The first time she got the test paper, Su Qingyun glanced at all the questions. Her expression did not change for the previous questions. The question types and test points were basically within her expectations. There was no surprise. Before the exam, Everyone has sorted it out together. It shouldn’t be a big problem for their team to do these questions, but this last question...
Su Qingyun raised his eyebrows in surprise and tapped his fingers on the table twice unconsciously. This last question was somewhat interesting.
She thought for a moment and simply skipped the previous questions and did the last question first.
Assume that positive integers a and b satisfy ab+1 and can divide a2+b2. It is proved that (a2+b2)\/(ab+1) is a perfect square number.
(PS: The question comes from Du Niang, my professional knowledge is limited, please be gentle.)
Su Qingyun held the pen in his hand, turned it unconsciously a few times, and then began to write.
It can be seen from the meaning of the question that the positive integers a and b satisfy...
She wrote very quickly, almost without any stagnation, and very smoothly, as if she already had the exact answer in her mind, and all she had to do now was write out the answer in her mind. Soon, I wrote half a page.
Behind Su Qingyun was a team member from Country E. He was facing the fill-in-the-blank questions on the front of the test paper, scratching his head and calculating on the draft paper. He accidentally raised his eyes and saw Su Qingyun writing furiously on the test paper, although he couldn't see it. I know exactly what she wrote about, but the title...
No, why is she doing the last question? ! The members of country E were stunned and looked at the clock on the wall uncertainly. Wasn't this the beginning of the exam?
After taking another closer look, he realized that the front of the person's test paper was still blank. He breathed a sigh of relief. After all, the test had just begun, and it was so scary.
However, he was convinced. The order of doing the questions was easy first and then difficult. This was the first time he saw someone starting from the last question in the test paper. Could it be that the previous questions were not challenging for her? ?
This idea just flashed through his mind and he smiled, then lowered his head and continued to work on his own test paper. The most important thing in the exam is to focus on yourself and not be affected by others and the outside world.
As time passed by, Su Qingyun wrote the last sentence. She had completed the last question. She turned the test paper back to the front with a happy expression and filled in the blanks.
She wrote the fill-in-the-blank questions faster. She had almost no time to think, and she didn't need scratch paper to calculate. She just wrote down the answers directly. It only took her a few minutes to complete the five fill-in-the-blank questions, and then she continued to solve the questions.
After finishing the six answering questions in Su Qingyun's hands, looking at the time, it was only more than half an hour. At this time, just one hour after the entire exam, Su Qingyun had already put down his pen. On the test paper, the handwriting was clear and neatly arranged. , well written and very pleasing to the eye.
After finishing the test paper but not being able to hand it in in advance, Su Qingyun stared at the clock on the wall boredly, spinning his pen and starting to be in a daze.
Everyone was writing furiously with their heads down, but she was the only one looking at the wall with her head held high. The invigilator who was walking around in the examination room quickly discovered this abnormal scene. He frowned and took three steps at a time. He walked directly to Su Qingyun in two steps.
The invigilator, who was about to knock on her desk as a reminder, was stunned when he saw Su Qingyun's test paper. The test paper was densely written, is this...done?
The invigilator subconsciously raised his head, looked at the time, and fell into silence. If he read correctly, the exam had just started an hour ago, right? Is this candidate finished?
Is this a little too fast? In one hour, the invigilator was a little unsure whether it was done carefully or written casually.
Yellow skin, square characters, Chinese? He looked at Su Qingyun carefully again and suddenly recognized it. He had an impression of this little girl. At the opening ceremony yesterday, this little girl was the youngest among all the participating players.
Being the youngest and the fastest in answering questions, the invigilator was really unsure. After all, it was an exam. He couldn't say anything unnecessary and could only walk away full of doubts.
During the rest of the exam, he kept paying attention to Su Qingyun consciously or unconsciously, and saw her turning her pen from time to time, and dazing outside the window from time to time. In the end, it seemed that she was really too bored, and she actually... fell asleep on the table? !
The invigilator was shocked. Did he fall asleep? She fell asleep at such an important exam?
He looked at the other team members who looked nervous and anxious, and then at Su Qingyun who was lying down sleeping. The strong contrast made him twitch the corner of his mouth. Putting aside other things, at least the psychological quality of this little Chinese girl was Really strong.
It was not only the invigilator who noticed Su Qingyun, but also other candidates who were struggling to do the questions. Looking at the sleeping figure, everyone felt numb. They were so anxious here. How on earth could that person sleep?
