"Yes, that's great, then we'll solve this first problem?" Xiao Jun said with a smile.

"Of course, just write this answer on it!" Yang Qianqian said coquettishly, she found that this Xiao Jun, who was originally here to make soy sauce, finally impressed her. Before, she felt that although Xiao Jun did well in high school mathematics, he had not systematically studied the Olympiad. and yesterday's inaction, which made her label Xiao Jun a 'soy sauce party'.

But now that the other party has behaved just now, she feels that she can re-integrate him into the cooperative relationship. He was already qualified to work on the next problem with her.

"Well, more than an hour has passed now, let's hurry up and study the solution to the second question~" Yang Qianqian said seriously.

"Okay!"

"The second question asks if there is a function f from a positive integer to a positive integer such that f(1)=2, f(f(n))=f(n)+n for all n, and f(n is greater than f(n+1)))?" We still have a third problem that we haven't solved yet, but it doesn't matter, it's only been a little over an hour, and we have plenty of time. ”

"Xiao Jun, I don't have any ideas yet, tell me what you think about this question. After Yang Qianqian thought for a minute, she found that she had no idea in her mind at all. The first question was already difficult for her. She also did it wrong. Therefore, this second question is even more difficult, and she has no ideas.

"My opinion? I already have an idea for the solution, so I'll write out the answer first. Xiao Jun smiled faintly.

"What? You already have an idea to solve the problem so quickly?" Yang Qianqian looked at Xiao Jun in shock, almost speechless. He actually had an idea to solve such a difficult Olympiad problem at once? Even if he changed to an internationally famous player, it couldn't be so fast, right?

"Yes. ”

Brush Brush Brush ......

Xiao Jun quickly wrote the answer on the scratch paper.

The answer was written out after two minutes, which was terrifying. In fact, he is copying, of course, it doesn't take any time.

"How do you see it?"

Yang Qianqian finally recovered from the shock and took the scratch paper and looked at it.

"Hey~ This solution idea is also amazing!" Yang Qianqian was full of praise after taking a look.

Then after she finished reading it, she almost wanted to scream with excitement, but fortunately she realized that she was taking the exam now, and finally suppressed the excitement in her heart: "You don't feel like a problem with this answer at all." ”

Although she didn't know how to solve the second question, and she didn't have any ideas in her head, after reading Xiao Jun's answer, she knew at once that this question could be solved like this.

Anyway, she felt that Xiao Jun's answer was perfect, and there should be no big problem!

"yes, that's great. Then I'll start writing the answer to the third question. Please write down the answer to the second question on the test paper. Xiao Jun said.

"Karma, you have to write the answer to the third question...... So you also have an idea to solve the third question?" Yang Qianqian was thundered again! Her eyes when she looked at Xiao Jun changed, as if she was looking at a demon. Did Xiao Jun eat the Enlightenment Pill today? Why did he suddenly become a demon scholar?

It seems that such a super difficult math problem is as easy as a math problem in elementary school in his eyes!

Solution in seconds?

"Yes!"

Brushing and brushing, Xiao Jun quickly wrote out the answer to the third question.

"Look at it. ”

Yang Qianqian had already taken the answer a little smumbled, she was indeed shocked by Xiao Jun today.

When she finished reading the answer, she was once again amazed by Xiao Jun's way of solving the problem. Looking at the question through the answer, she felt that this way of solving the problem was completely correct, that is to say, Xiao Jun's answer was completely fine, and it would definitely not be wrong!

"Huh~ I didn't expect that it only took us an hour and a half to finish writing the three questions. Maybe we can get the top three this time?" Yang Qianqian was both happy and dreaming.

To be honest, she didn't have much confidence in today's final, after all, the difficulty of the question is here. But Xiao Jun's sudden outbreak made her overjoyed. Maybe Wucheng No. 3 Middle School can get a good ranking this year.

Because she looked around and found that except for Jiangbei High School and Jiangbei University High School, the other groups of contestants are still thinking about solving the problem, and they have not started writing at all!

Three hours later, it was finally time for the exam.

Submit your papers and walk out of the exam room.

Chen Jianyong and Zhou Li, who were outside the examination room, immediately ran over when they saw the two coming out.

"How's it going, is the question difficult?"

"How many questions will you do?"

"The question is very difficult, but we have completed all three questions!" Yang Qianqian reported truthfully.

"What? All three questions have been made? haha...... Great!" Chen Jianyong was excited.

"Classmate Qianqian, you are amazing!" Zhou Li also gave a thumbs up to Yang Qianqian, and Xiao Jun was automatically ignored by her. Because yesterday's performance is soy sauce.

"Teacher, the three questions were all solved by Xiao Jun!" Yang Qianqian didn't take the credit.

"What?" This time, Zhou Li and Chen Jianyong were both on the spot. Apparently I didn't expect this to be the result.

They were all shocked that Xiao Jun did three questions alone, didn't he do anything yesterday?

Of course, it is indeed a joy to see that your students can complete all three questions in the finals.

…………

After the exam in the morning, it will be time to revise the papers in the afternoon and tomorrow morning. The results will be announced tomorrow afternoon.

In the revision room, more than a dozen people at the level of mathematics professors are carefully revising the papers.

"Huh~ This way of solving the problem, this way of solving the problem. It's so flawless, it's so new. Even I didn't think of using this way to solve the problem!" Luo Huafeng, one of the teachers who corrected the paper, was shocked immediately after reading Xiao Jun's test paper!

"I think I can give full marks! I can't find a loophole to deduct points for this kind of solution and answer!"

"Ladies and gentlemen, let's take a look at this test paper I have here, and I think I can give you a full score for the first question! Luo Huafeng said to the other dozen or so teachers.

In a competition of this level, he alone definitely does not have the right to give full marks, and he needs to be reviewed by another teacher before voting.

Of course, only a perfect score needs to be so troublesome.

Because of the full score answers, it is almost rare to get a full score in this kind of Olympiad type of exam, and there are very few over the years anyway.

"What? There is a perfect answer?" After hearing this, the other dozen or so teachers were shocked and quickly gathered around.