It's September soon, and in the last two days before the start of school, Su Qingyun went to the county and found the teacher Chu Xianming.

"Teacher." Su Qingyun put the award certificate she got in front of Chu Xianming, and she smiled mischievously, "I did it, fortunately I didn't disgrace my life." ”

Chu Xianming looked at the award certificate in front of him and smiled with satisfaction, "Well done, Qingyun." ”

She was able to win the first prize of the individual award, which was also an unexpected result for him, and it was not very surprising, but Su Qingyun's full score still surprised Chu Xianming.

??“ I heard that you were the only one who did the last question in this written test? Chu Xianming asked her.

"Yes."

Su Qingyun caught a glimpse of the newspaper pressed under his glass plate, on which was the news page where she won the award, presumably the teacher knew the question from this.

"Tell me, what's the problem?" Chu Xianming was a little interested.

?“ Let the positive integer a, b satisfy ab+1 and be divisible by a2+b2, proving that (a2+b2)\/(ab+1) is a perfect square number. Su Qingyun directly repeated the question.

Chu Xianming quickly wrote it down in the notebook, he twisted his eyebrows and thought for a while before speaking, "Veda jumps." ”

"Yes." Su Qingyun smiled and nodded.

The teacher deserves to be a teacher, and it quickly becomes the key to discovering the problem.

Chu Xianming: "It's not easy, but you did a good job." ”

"Maybe I've done a lot of questions, so my mind is more active than others." Su Qingyun smiled.

"Don't be too modest." Chu Xianming also smiled, "What about the free elaboration link later?" What question did you draw? ”

Although there are some reports in the newspapers, they are not detailed enough to write the title.

Su Qingyun paused, "It's Riemann's conjecture." ”

"Riemann conjecture?" Chu Xianming was stunned for a moment, and his rare expression was a little out of shape, "How could it be Riemann's conjecture?" ”

How is it possible to expound such a world-class mathematical conjecture in 10 minutes? Is that organizing committee crazy?

"All the test questions were randomly selected at that time, and among so many team members, only me and another team member drew the world-class conjecture questions, he was the Fermat conjecture, I was the Riemann conjecture, maybe I was unlucky."

Su Qingyun explained the situation in a few words.

"That's it, it's a kind of fate." After Chu Xianming finished saying this, he suddenly realized a problem, "In other words, you still got a full score in this link after drawing the Riemann conjecture?" ”

"Well, at that time, the judging team was more interested in some of my ideas for the Riemann hypothesis, so I gave it a high score."

"What kind of ideas, can you tell me?" Chu Xianming couldn't wait to say, his expression was a little eager.

"Okay." Su Qingyun nodded and began to speak slowly, "What I think of as Riemann's conjecture is actually like this......

There was no one in the library, the sunlight was shining through the gaps between the leaves outside the window, and the atmosphere in the library was very quiet, only the low voice of the teacher and the student exchanging words.

I don't know how long it took, Su Qingyun finally stopped talking, and Chu Xianming's expression was already a little trance-like.

Although the things that his student said were not very in-depth, he felt that this was indeed a very novel idea, and if he continued to count down, no one knew what would happen next.

No wonder the people on the judging team would give her a perfect score, and if it were him, they would do the same.

"Have you calculated these thoughts and ideas yourself? I mean, you really put pen to paper to calculate the Riemann hypothesis yourself? Chu Xianming asked very seriously.

Su Qingyun paused, "No." ”

Actually, there is, but it was her own in her previous life, in this life, she was too busy, and she really didn't calculate the Riemann conjecture by herself, if she hadn't drawn this test question at that time, she would have forgotten that she had been competing with this world-class mathematical conjecture.

"You can do the math yourself." Chu Xianming's expression was serious and encouraged her, "Maybe this is really a road." ”

Su Qingyun smiled, "How can it be so simple, teacher." ”

"If you don't do it, you will never know the result, and you will only know when you do it."

"I understand." Su Qingyun also looked serious and nodded.

In fact, when she was in country E, that night of discussion with everyone in the review team, they seriously told Su Qingyun that after she returned to China, she would concentrate on studying the Riemann conjecture, and as long as there were some results, they could be compiled into a paper, and everyone in their review team could help her check and revise it.

"I'll try to do it."

"That's good." Chu Xianming looked at the time, "It's almost, let's get here today, you go back early." ”

"Okay, thank you, teacher."

After Su Qingyun thanked her, she walked out of the library and got into the car to go home, and after arriving in the town, she unlocked the bicycle, but instead of going home, she walked? In the other direction, that direction is the direction of the family home of the town government.

She went to find Ji Yue.

When she arrived at the family home of the town government, Su Qingyun stopped her bicycle, and when she was about to go in, she was a little hesitant, at this point in time, she didn't know if Uncle Ji and Aunt Ji were not at home.

If they are there, it will be a little disturbing if she goes, and she will be left to eat by the enthusiastic Aunt Ji, if they are not there, it will be even worse, although she thinks it is nothing, but if she is seen by other people in this family home, she and Ji Yue will stay at home alone, and it will inevitably gossip.

Su Qingyun thought about it and stopped a child who was playing outside the family courtyard.

"Ah, kid."

The little boy who was dirty after rolling on the ground blinked with a pair of big black eyes, and looked at the beautiful big sister who was pulling him suspiciously, "Is there anything wrong with you?" ”

Su Qingyun took out two toffees from her bag and handed them to her, "Sister gives you candy to eat, can you do my sister a favor?" ”

She thought that a child of this age would agree to everything when she saw the candy, but she didn't expect the little boy to look at her vigilantly, "What are you giving me candy for?" Are you trying to kidnap me? ”

Su Qingyun: "......"

"Do I look like a child abductor?" She has always suspected that others are abductors, and this is the first time that Su Qingyun has been so suspicious by others.

"Don't think that if you're pretty, you don't look like a kidnapper." The boy still looked vigilant, "My mother said that the more beautiful a girl is, the more she will deceive people, so I won't fall into your trap!" ”

Su Qingyun: "......" is praising her? Or is it to her detriment?

Are the children in this government family home so vigilant?