Great Country Academician

Zhang Weiping never gave up on building a mathematical model for this information security to decipher the other party's encrypted message.

Because there are countless changes in both functions and algorithms, it is far from enough to simply rely on manual deciphering calculations.

The first thing about information is real-time.

Especially in the current situation, if the encrypted message cannot be deciphered in time, it will be of little value.

Because even if it is deciphered later, other people's activities and information transmission will be over long ago.

But it is not so easy to establish a mathematical model for an unknown mathematical law.

If you want to model, you must first understand the actual background of the problem, clarify the purpose of modeling, collect the necessary information, and try to clarify the characteristics of the object.

Then, according to the characteristics of the object and the purpose of modeling, necessary and reasonable simplification of the problem is carried out, and assumptions are made with precise language.

Then analyze the causal relationship of the object according to the assumptions made, and use the internal laws of the object and appropriate mathematical tools to construct the equation relationship or other mathematical structures among the various quantities.

It is usually quite difficult to establish a mathematical model for a problem, not to mention the encryption method specially designed by the first district.

They need more information and data.

And just as my colleague just said, training a group of mathematicians in information security is a must for a big country.

The 21st century has already entered the information age, and the importance of various algorithms and encryption programs for information security is beyond doubt.

"However, if these functions and algorithm topics parsed from encrypted messages are put into training sessions such as math competitions and modeling competitions, it will affect the training effect."

Thinking of this, Zhang Weiping frowned slightly.

Whether it is a Mathematical Olympiad or a modeling competition, the ultimate goal of students participating in these competitions is to get a good ranking in these worldwide competitions, so as to have the opportunity to enter a higher platform for learning.

He couldn't delay the future of these students for the sake of information deciphering.

"It seems that this method will not work."

Zhang Weiping shook his head, temporarily put down the thoughts in his mind, and prepared to pack up the materials and leave.

A math professor next to him saw him stunned for a long time, and curiously asked what was wrong.

Zhang Weiping explained his thoughts, and the mathematics professor looked at him in surprise and said.

"Hey, I thought it was something, you just extend the training time for the national competition and modeling competition for a while."

Zhang Weiping was stunned for a moment, then clapped his hands suddenly: "Why didn't I think of it? This method is totally feasible."

The training time of the Mathematical Olympiad National Training Team is generally in March every year.

Sponsored by the Olympic Committee of the Mathematics Society, the training time is 15 days, which is half a month.

In half a month, two screenings were carried out to turn the original sixty training seeds into six national teams, and then train these six seeds to participate in the IMO competition.

The advantage of this is that it will not delay other students from taking the college entrance examination.

Because in addition to the training camp for members of the National Conference, the annual National Conference is the same as the Golden Autumn Camp of the two top universities. In fact, you can sign up and pay to participate independently.

The registration conditions are set at the second year of national competitions every year, and a certain amount of national training fees must be paid.

After all, the board and lodging are centrally arranged by the Olympic Committee of the Mathematics Society, and money is still needed.

Although there is a fee, it is a good opportunity for those contestants who failed to enter the national competition.

If they achieve excellent results in the training and examinations of the national competition, they may also be spotted and admitted by top universities, and they can also get extra points in the college entrance examination.

This is a so-called resurrection match for some students who devoted themselves to the competition but failed in the exam.

As for the sixty training seeds, there is no need to pay the fee, and the Mathematics Association will arrange it.

Therefore, it is indeed a feasible way to extend the national training time for a period of time.

However, you have to consider and calculate how long you need to extend the training time so as not to delay the training effect.

Star City, City No. 1 Middle School.

The formerly bustling campus has been a bit chilly these two days. The students in the first and second grades have left, and only the third-year students are still persisting.

But today is the last day.

When the head teacher of each class finished explaining the holiday, cheers erupted in the classroom.

Crowds of people rushed to their dormitories with their schoolbags on their backs, and Xu Chuan was no exception. He hadn't been home for almost half a year.

After tidying up his clothes and books, carrying his schoolbag and a black suitcase, he got on the bus to Yue County.

The bumpy journey took nearly three hours, and the bus finally stopped at the side of the national road.

Xu Chuan got off the car and looked at the newly built concrete road at the entrance of the village, feeling a little excited and a little apprehensive.

The familiar buildings and farmland beside the cement road seem to have never changed, and have always been the same as in memory.

Dragging the suitcase, Xu Chuan took a deep breath and set foot on the way home.

Along the way, from time to time, villagers who were preparing for the New Year or basking in the sun greeted him and asked with a smile that the future college student was back.

Xu Chuan responded one by one, and after a while, he had already reached the door of the house.

On the familiar concrete floor, a middle-aged woman was squatting by the well and busy with something. She seemed to have sensed something. She looked up and looked around, and then she was pleasantly surprised.

"Chuan'er!" The woman stood up in surprise, wiped the water stains from her hands on her clothes, and a gleam of surprise and joy appeared in her pupils.

"Mom, I'm back!"

Xu Chuan yelled, with faint tears in his eyes. After several years, he finally saw his parents again, and once again stood in front of them in person.

"You child, why didn't you call in advance when you came back?"

Wu Lian complained excitedly, and involuntarily snatched the trolley of the suitcase from Xu Chuan's hand, turned around and shouted loudly towards the second-floor building of the somewhat old red brick building: "Old Xu, Lao Xu, hurry up!" Go buy a fish and buy an elbow, and come back, your son is back."

"Huh? Chuan'er is back?"

On the balcony on the second floor, Xu Jianguo popped his head and looked over in surprise. There was still a little sawdust on his hair, as if he was repairing something.

"dad."

Xu Chuan raised his head and shouted, and immediately got a response. At the same time, another little head appeared on the balcony.

"Brother, you are back."

Xu Xiao poked his head out on the balcony and shouted excitedly, and then there was a sound of going downstairs, rushing over and hugging Xu Chuan's arm.

"How long has Xiaoxiao been on vacation?" Xu Chuan smiled and touched the little girl's head. The follower who stuck to his buttocks since he was a child has grown up.

"It's almost ten days old, brother, you have grown a lot taller, have you taken hormones yet?"

Xu Xiao looked up at Xu Chuan, who was almost a head taller than her, with wide round eyes, feeling a little unbelievable.

Obviously there was not such a big gap between the two of them last time they met.