When he separated from Vice President Yang and the others, left Beijing University, and was about to take his parents back to the hotel, Zhao Xiancai looked back at the university campus where he had only stayed for two years.

It was only then that he realized that his college career, or to be precise, his college student career seemed to be really over.

From today on, he is no longer a student. Although in a sense, Zhao Xiancai can no longer be regarded as a student, but he still feels somewhat strange in his heart.

"What's wrong? If you want to see it, let's watch it for a while."

After noticing that their son looked back at Beijing University and stood there for a long time, Zhao Xiancai's parents asked first, then realized that their son might have graduated and was a little reluctant to leave the university where he had stayed for two years, so they later asked

Added one sentence.

"It's nothing. There will be plenty of opportunities to see it again in the future. Let's go."

After being told this by his parents, Zhao Xiancai was freed from the strange feeling before and said this to his parents.

"By the way, Dad, Mom, why don't you buy a house here in the capital and move here in the future?"

Zhao Xiancai said to his parents again.

“Buying a house in the capital?”

"No, no, houses here in the capital are so expensive. Buying one house here is enough to buy many houses in Chengxian."

"That's right, your dad is right, we already have such a good house in Chengxiandu and we are satisfied.

Moreover, it is now convenient to go back to my hometown from the county seat, whether it is to go to the relatives’ home in my hometown or to the relatives’ home in the county town.

If you really move to the capital, your dad and I may not be able to get used to it."

After hearing Zhao Xiancai say that he wanted to buy a house for them in the capital, Zhao Xiancai's mother Wang Qiuyue was stunned for a moment and did not react. However, his father Zhao Aizhong reacted faster and quickly rejected Zhao Xiancai's proposal.

After Zhao Aizhong refused, Wang Qiuyue also refused.

After hearing what his parents said, Zhao Xiancai didn't say anything more.

In fact, it's not that important to him whether it's money or not. Money is earned just to be spent.

But his parents were right. They had no acquaintances in the capital, let alone any relatives here. If they wanted to visit relatives and friends, they would have to take a plane or high-speed rail.

Zhao Xiancai has some money now, but it is impossible for him to bring all his parents' relatives and friends to the capital. Let alone him, even the richest man in China cannot take care of all his relatives and friends.

Moreover, Chengxian's parents have lived there for so many years and have feelings for that place, so it's impossible to just change places.

Even after moving to the county town, they still often return to their hometown.

"Yes, everything in the house in the county is decorated according to your previous arrangements.

We found the designer friend you mentioned, and he designed it very well according to the needs we described.

As for the smart homes you mentioned, we also found people to arrange them well, and we almost don’t have to do anything at home now.”

Zhao Xiancai's father said.

The designer Zhao Aizhong mentioned was designed by a senior fellow who also graduated from Peking University whom Zhao Xiancai found. His father did not know how much this design cost.

The same goes for smart homes.

…

In the next few days, Zhao Xiancai took his parents to visit some places in the capital that they had not visited before, and went back to his hometown to visit his grandparents. After that, he returned to Princeton.

When he was at Princeton, Zhao Xiancai started what Vice President Yang had told him before, giving questions to the students participating in the Chinese Mathematical Olympiad national training team this time.

In the end, Zhao Xiancai composed ten questions on his own and used points to buy some more questions from the system.

Now he spends points from the system to buy difficult questions for high school mathematics competitions in this era, which is much cheaper than when he was still in high school and participating in mathematics competitions.

After all, the points for purchasing "items" from the system are related to Zhao Xiancai's intelligence and his mastery of relevant knowledge.

With Zhao Xiancai's current strength, he can already produce very high-level high school mathematics questions. Naturally, the points he spends to purchase high school mathematics questions from the system will be much less.

However, this is also based on the world that Zhao Xiancai lives in now and the high school of this era.

What if a hundred years later, with the assistance of relevant machines, humans would start learning the "Riemann Hypothesis" that had been proven at that time in high school.

So the high school test questions at that time were naturally not of the same grade as the high school test questions now, and the prices were naturally different.

As for the questions that Zhao Xiancai set himself, some of them were taken from some mathematics materials he had read before.

The answers to many questions in these documents are actually far beyond the standards for most students participating in high school mathematics competitions, so Zhao Xiancai was not worried that any of them had read those documents.

Although those students who participate in the Mathematical Olympiad competition, there will always be some geniuses who can read various mathematical literature.

If they had really read the papers published by Zhao Xiancai, then it would be normal for them to enter the national team through the training team.

At least in Zhao Xiancai's view, this is not cheating.

When Peter Schulz was still in high school, he had read a lot of mathematical literature. Even in the process of reading the arguments for certain mathematical problems in some materials, he would come up with more concise proof methods on his own.

.

Therefore, one of Peter Schulz's original purposes in reading these documents was to shorten the content of these documents.

As for Zhao Xiancai, when he was in high school and participated in the mathematics competition, he was not that good at it.

In addition, among the questions that Zhao Xiancai gave himself, there were some questions that he came up with when he was thinking about some mathematical problems.

But no matter what, in the mathematics questions Zhao Xiancai sent to Vice President Yang, all the answers he provided were completely in line with the knowledge range of the mathematics competition.

"I have already sent you the questions. If any student in the training team gives a more concise or clever answer to the questions I asked than the answers I provided, please let me know.

You can send me the questions and answers via email or other methods."

After sending these mathematics questions to Vice Principal Yang, Zhao Xiancai also called him specifically and said to him.

"So fast? Okay, I'll take a look right now."

After receiving a call from Zhao Xiancai and hearing what Zhao Xiancai said, Yang Gang also said the same thing.

Soon after hanging up the phone, Yang Gang received the document sent to him by Zhao Xiancai and began to read the questions asked by Zhao Xiancai.

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