An Expert Is actually By My Side

Chapter 109 Champion! (55)

On the eighth day after the competition, at 9:50 in the morning, there were still ten minutes left before the organizer announced the winners.

If there is no delay due to special accidents, the organizer will announce the ranking of the competition and the guidance of the main test committee on the entries of the contestants on the official website.

At this moment, in the computer room of the library of Zhong Xia University of Science and Technology.

Several students were nervously gathering in front of a computer, repeatedly refreshing the official website of the Hope Cup. Li Rongyun was anxious like a restless wild boar, walking back and forth behind several students.

As the trump card of Xiazhong University of Science and Technology, and also the president of the Computer Association of Xiazhong University of Science and Technology, he is determined to win the hope cup competition, and it is also the dean's expectation for him to keep the trophy in the dean's office.

In fact, until he submitted his work, he was quite satisfied with his work, and he had no doubt that it could help him win this competition.

However……

Just a few days ago, some rumors he heard made him feel uneasy.

Noticing the restless expression on Li Rongyun's face, several members of the Computer Association cheered him up.

"It's okay, President, with your strength, it's definitely fine."

"Yes! No matter how you say it, we are definitely better than the next door!"

"What are you talking about? Our president must be the champion!"

"I hope," Li Rongyun forced a smile, looked at his watch for the nth time, and said in a low voice, "Is there still one minute..."

A minute flies by.

It can even be said to be fleeting.

The moment the time in the lower right corner of the computer reached ten o'clock, the refresh of the website froze for a moment due to the surge in visits, but it soon returned to normal.

Li Rongyun rushed to the computer, pushed away the two students who were blocking him, and looked at the list of winners on the computer screen. However, at this moment, his expression froze.

champion--

Jiangcheng University Software Engineering Department - Hao Yun!

Topics - 4!

"This is impossible!"

An unbelievable growl came out of his mouth, and it wasn't until everyone in the computer room looked this way that he restrained his volume with a frozen expression, and lowered his unbelievable voice.

"The fourth question... how is it possible?!"

This is also the case in previous years.

A small number of contestants solved the specially set trap questions with a big upset.

However, due to the difficulty of the question itself, most of the answers submitted were flawed, so they basically missed the championship, and even the top ten were hard to see.

Especially this year's fourth question, which is simply impossible to complete...

The members of Xiadong University Computer Association stared blankly at their president, wanting to comfort them but didn't know how to speak. I saw that he seemed to be in a daze, muttering to himself, and downloaded the file in the attachment that can be browsed freely.

However, something even more unbelievable happened.

The answer that appears in the attachment, has only one hexadecimal number.

Although under this number there is a large statement supplemented by the competition organizer explaining the usage of this number, and even longer and more professional review opinions of the main test committee than this line of explanation, but this still cannot change his being mere A number beats the facts.

"A number..."

With bloodshot eyes, Li Rongyun looked at the list of winners, and looked down the first place, and as expected, he found his name in the second place.

And this also made the frustration in his heart even stronger.

He could accept that what defeated him was a piece of code that was so good that no one could fault it, but it was hard to accept that what defeated him was such a seemingly insignificant thing.

Li Rongyun's face was full of frustration.

Standing next to him, Yang Yunhui, who is also a member of the Computer Association of Xiazhong University of Science and Technology, had a thoughtful expression in her eyes. After pinching her chin and recalling carefully for a long time, she suddenly spoke.

"This person... seems familiar to me."

"Familiar?" Li Rongyun, who was devastated, looked back at her.

"Well, to be precise, we only met him a few days ago," Yang Yunhui said awkwardly with an intriguing expression on her face, "We were having afternoon tea at the W Hotel, and he seemed to be sitting at the table not far from us... …when we came in, he seemed to have been sitting there for a while."

Li Rongyun was stunned.

"It's at the table not far from us... In other words, he submitted the answer earlier than us?"

But he soon realized that what he said was nonsense.

After all, people's answer is just a line of numbers, how much time can a line of numbers take.

With an expression of unwillingness in his heart, he sat in front of the computer, downloaded the code to the computer, and quickly wrote a piece of code that can record the number of calculation steps and find the reciprocal of the square root according to the code provided by the competition's official website.

Optimized underlying functions?

What's the matter...what the hell? Really? !

The result of the calculation came out in an instant, and Li Rongyun and a few classmates behind him were dumbfounded on the spot.

Randomly input a number, the calculation of the original function took five steps to get the result, but after modifying the hexadecimal number used to calculate the guess value, the number of steps was instantly reduced to two steps.

Li Rongyun didn't believe in evil, so he tried several numbers again, but the results he got were the same without exception. The number of calculation steps of the original function basically fluctuates between 4 and 7 steps, and only rarely can it reach 2 steps, and the optimized function, no matter how he tries, will always get the result in two steps.

"This is mathematics..." A student standing behind couldn't help but said, "But how did he do it?"

yes……

How on earth is this done?

Everyone, including Li Rongyun, wanted to know this question, but no matter how they thought about it, they were at a loss.

Just relying on the addition and subtraction of hexadecimal numbers under the shift algorithm, the precise value can be directly approached to the edge of the final result in one step. No matter which known mathematical formula is applied, it cannot explain the strange mathematical principle.

But at this moment, Li Rongyun, who was in a daze, suddenly began to understand why the main test committee used the word "unbelievable" in the evaluation.

really……

This indeed deserves an incredible rating.

If the rewritten low-level function can really reduce the operation steps so much compared to the original function, even if it is only 0.0001 seconds of shortened operation time reflected on the hardware, and accumulated in the program that calls the function thousands of times, that is a big problem. Pretty amazing optimization results.

Not even just Glacier engines...

The entire field of computer graphics will benefit from this.

Li Rongyun's shoulders relaxed slightly, and the expression on his face finally relaxed a little.

At least……

It is not wrong to lose to such an opponent!

...

At the same time, academician Zhan Yongshu, who was far away at Shuimu University, was sitting in his office, and had just finished the thesis he had been conceiving for the past two days.

Unlike many impressive research results he has published, this rare paper does not propose any innovative viewpoints, but only summarizes and evaluates existing knowledge.

Speaking of which, the content of the thesis actually has a lot to do with the hexadecimal number known as the "magic number", and even more than 50% of the paper is concentrated here.

However, unlike Professor Jia Yuxin, as a scholar in the field of information, he did not explore the hidden mysteries from the perspective of mathematics, but only evaluated the contribution of this number to the field of information engineering from the perspective of informatics.

And, some instructive clues.

At the end of the thesis, Academician Zhan Yongshu wrote down his opinion after thinking for a long time.

[Although I have studied and researched in the field of information engineering for many years, I never thought before that the underlying functions that have been simplified to an impeccable level by countless generations of scholars still have such amazing room for improvement. 】

[As for the mathematical logic contained in it, I have no way of understanding it for the time being. Even though a friend of mine who works at the Xiaguo Mathematics Research Institute has already contacted this student, the answer he got is just a flash of intuition. 】

[I believe in this explanation, just as we originally solved the Basel problem because of various intuitions and coincidences. At the same time, I also believe that the mathematical principles contained in it may provide a key and extremely precious clue for the progress of informatics! 】

After reading the thesis he just finished from beginning to end, Academician Zhan Yongshu nodded with satisfaction, and then picked up a written letter on the table.

This letter was sent by Zhang Wei, editor-in-chief of Times Youth Daily, hoping to interview myself as the main test committee about the champion works of this Hope Cup competition.

He did know this enthusiastic and polite young man, he was quite a nice guy. In the past two years, "Times Youth Daily" has been operating well on social media accounts, and its influence among the student community has also grown year by year.

Looking at the interview invitation in his hand, Academician Zhan Yongshu suddenly turned into a smile.

The Troubles of Fame...

That student will probably be able to understand it soon. -

(Ahem, surprise, I found out that there is still a chapter to save, so I won't save it until tomorrow...)