Top Student

Xu Youxin said, Professor Peng, you still underestimate my Xu You's speed.

Taking advantage of Peng Jun's remorse, Xu You hurriedly picked out the books that Peng Jun had just mentioned on the bookshelf.

Seeing Xu You's excited look, Peng Jun couldn't help but think of the excited look of the aunt in the supermarket when she saw the specials.

"Teacher, it shouldn't matter if I borrow a few more books, right? I can return them years ago. Are you still in the lab during this time?"

Peng Junxin said, you have dragged the suitcase here, what else can I do.

"It doesn't matter, as long as you can carry it, you can borrow as many books as you want. I may be leaving school in two days, and you can just return the books before school starts. Don't worry."

With Peng Jun's consent, Xu You can finally borrow books with confidence.

After picking dozens of books, Xu You finally felt that it was almost done.

Xu You was not in a hurry to pack the books directly into the suitcase, but organized the books first and took a photo.

"Teacher, add a WeChat, and I'll send you this photo. I'll compare it when I return the book, so I won't leave a book behind."

"Forget it, don't bother, I trust you."

But under Xu You's repeated insistence, Peng Jun had no choice but to add Xu You's WeChat, and accepted the photos sent by Xu You.

"Teacher, thank you very much for your teaching today! I will definitely remember this kindness!"

Peng Jun smiled helplessly and said: "Why are you being so polite? I just talked about it to you today and recommended some courses and teaching materials. It is my honor to have the opportunity to communicate with such an outstanding student like you. .”

After seeing off Xu You, Peng Jun had mixed feelings.

Peng Jun really didn't expect that when Xu You saw him for the first time, he could borrow dozens of books from him.

But without a doubt, Peng Jun's biggest feeling for Xu You is that this child really likes studying too much.

Although Peng Jun didn't know Xu You well, he knew that Xu You must be a child with a very high academic talent.

But compared to Xu You's talent, Xu You's eagerness to learn may be more important.

For Xu You, Peng Jun still appreciates and likes him from the bottom of his heart.

"It would be a great blessing to have a student like Xu You in the laboratory." Peng Jun sighed.

Returning to the dormitory with a box of books, Xu You turned on the computer without taking a break.

Opening the bar, Xu You searched for the corresponding online teaching video.

"The fastest playback speed is only 2x speed, which is still too slow."

Under the current state of deep learning, Xu You's maximum learning efficiency can reach four times the normal one.

In this way, the 2x speed in the player is only equivalent to 0.5x speed in Xu You's eyes.

Xu You searched for some methods on the Internet, and finally successfully adjusted the speed of the video to 4 times faster.

In this case, in the state of deep learning, it is exactly the normal speed.

But that alone is not enough.

While listening to the lectures, Xu You also had to look at the textbooks and conduct simultaneous thinking and analysis.

This is also a learning method that Xu You is used to in class.

This three-dimensional learning method can maximize Xu You's learning efficiency.

After completing all the preparations, Xu You started formal study.

Sure enough, this way of learning is indeed very efficient.

You can master the knowledge to a very solid level in the first learning process.

That kind of terrifying 4x speed that outsiders can't tell what they're talking about at all.

For Xu You, it was just a normal speaking speed.

In just one night, Xu You felt that his computer foundation had improved a lot.

After taking a look at the system interface, it turned out that the subject level was raised by 6 points in an instant.

Remembering Peng Jun's advice, Xu You chose a new laptop overnight.

Xu You didn't buy too expensive ones. The configuration of more than 10,000 yuan is enough for future programming and modeling.

In this way, Xu You kept at least ten hours of study time every day.

With the blessing of deep learning, Xu You can learn all the courses of a subject in less than a day, and reach the level that he can program and apply it by himself.

In just ten days, Xu You had already studied the courses recommended by Peng Jun, as well as all the borrowed books.

Looking at the scores on the system interface, the subject level of informatics has reached 182 points.

"It has risen by as much as 100 points, and it seems that the effect is still very obvious."

At this time, Xu You also wanted to verify his current level.

Thinking of this, Xu You sent a message to Peng Jun.

"Teacher, is there any related topic, I want to practice it and see how well I have mastered it."

After Peng Jun saw it, he immediately replied to Xu You's message.

"Okay, now you have learned that class?"

"Teacher, I have already learned what you told me."

Seeing Xu You's words, Peng Jun couldn't help frowning tightly.

What are you kidding?

The courses that Peng Jun told Xu You are all core courses for computer majors.

If you can really understand all of these, it is equivalent to the level of undergraduate computer science graduates.

No matter how powerful Xu You was, Peng Jun would never believe that Xu You's learning ability could be exaggerated to such an extent.

"Is it really over? Then I'll send you a question first."

Naturally, Peng Jun didn't believe that Xu You had really learned all these courses by himself.

But Peng Jun didn't want to make it difficult for Xu You, so he randomly found a question that was not too difficult, and sent it to Xu You.

After Xu You received the title, he read it seriously.

"Given an integer n, return n! the number of zeros in the mantissa of the result."

The content of the topic is very short, but Xu You knows in his heart that a short topic does not necessarily mean that the topic will be very simple.

Sometimes, it's even the complete opposite.

Xu You first translated the stem of this question into an easier-to-understand form of expression.

The so-called "n!" is the factorial of n, starting from 1, multiplying by 2, multiplying by 3, and multiplying until n.

In the final calculation result, how many 0s are at the end of the number is the final answer.

If you use pure algorithmic thinking, a relatively simple and crude method is to multiply directly, and then count how many zeros there are at the end.

But such a method is undoubtedly not a good method.

Xu You knew that Peng Jun definitely didn't want him to solve the problem like this.

Soon, Xu You rediscovered the solution to the problem through mathematical thinking.

"If you don't consider 0, from the 9 numbers 1-9, only 2 and its multiples, and 5 and its multiples, will have 0 appear."

In this way, the problem becomes how many pairs of 2 and 5 can be matched in this factorial number.