According to the mathematical model established by Gao Jiu, each calculation group starts from the original data, and after 512 calculations, the set of data with the farthest deviation of the expected value, and then the four remaining sets of data are calculated 2048 times, and the two sets of data that are farther away from the expected value are removed. The remaining two sets of data are subjected to numerical translation, superposition, decrement and other operations according to the characteristics of the ordinary password. At this time, they will be divided into 256 sets of data.

These data are performed inverse operations 2096 times respectively, and finally the completely opposite data are reset to zero one by one.

If the final result can be completely zeroed, it will prove that this mathematical model is correct.

The calculation amount is too large. For operations using manpower, it is necessary to ensure that each set of data must not have any errors, which is really a difficult task to complete.

The five team leaders of the second model calculation group are all top students who graduated from the Department of Mathematics of Jinling University. They are full of confidence and do not believe that anyone can surpass them in mathematical deduction. Therefore, when they heard that the black room questioned their calculation ability and invited Gao Jiu to guide them in the calculation, they all looked at Gao Jiu with dissatisfaction, and they had the desire to compete with him.

The members of the Black Room are also top talents in the mathematics community, and they don’t really believe that Gao Jiu can surpass these young people who graduated from the mathematics department in terms of computing speed. Everyone also looked at Gao Jiu with a skeptical look.

Lin Yanni is full of confidence in Gao Jiu. She looks at her lover with admiration, hoping that he can perform wonderfully.

As the saying goes, literati are inferior to each other, but this is not the case in the academic world. Gao Jiu knew that if he did not show his strength to suppress these people, the next thing would be difficult to proceed.

Gao Jiu smiled and said, "I haven't done a calculation for a long time. I don't know if it's okay? Let's do it. You can just make a set of numbers, add, subtract, multiply, divide, multiply, and open a square."

A chubby young man with a round face said actively: "I'll set the questions."

He came to the blackboard and wrote an 8-digit number, asking Gao Jiu to open the fourth power. After he finished writing, he wanted to see how Gao Jiu calculated it with a fountain pen and how long it took to calculate it?

Before he could turn around, Gao Jiu said, "78."

Everyone was very confused and looked suspiciously at Gao Jiu.

The other four young people immediately started to make a calculation and made a calculating process. Finally, they looked at each other with shock on their faces.

When Zhou Zhiming saw the expressions on their faces, he knew that Gao Jiu's calculation must be correct. However, he still asked: "What's the result?"

A tall young man wearing glasses said, "Instructor Gao's answer is correct."

Lin Yanni was a little proud. She glanced at the people present with a playful look, meaning, how about it? My ninth brother is so awesome.

The young man with round face who set the questions was a little dissatisfied. He asked, "Instructor Gao, can I increase the difficulty of the questions?"

Gao Jiu smiled and said, "Please give any questions."

The round-faced young man wrote a set of 16-digit numbers on the blackboard, asking him to multiply to the third power and then to the 12th power.

Lin Yanni saw that the numbers on the blackboard were getting longer and higher and higher requirements were getting higher and higher, and she became a little worried about Gao Jiu. She even complained to the young man with round faces that the question was too much.

Those young people felt relieved when they saw the young man with round faces such a question. They didn't believe that Gao Jiu could still calculate it. If he had to calculate it by writing, even if he could calculate it correctly in the end, he wouldn't be able to do it without a day.

This time Gao Jiu was even more outrageous. After the round-faced young man finished writing the last number and the last stroke, Gao Jiu said directly: "The answer is 11.24."

Several young people were not convinced, and the round-faced young people were the same. They picked up the abacus and started fighting together.

When Gao Jiu saw them calculating there and had nothing to do, he walked with Lin Yanni to a lounge next to the conference room to enjoy the world of two people.

Lin Yanni had no doubt about whether Gao Jiu's calculation result was correct. She said admirably: "Brother Jiu, you are so amazing. Sometimes I am very curious. I really don't know how your head grows, why are you so smart?"

Gao Jiu smiled and said, "This is nothing, just counting the numbers, something that children can do."

Lin Yanni smiled and said, "That complicated calculation is still a matter of a child. So why don't I even graduate from kindergarten?"

Gao Jiu smiled and said, "You are too modest. You are not a kindergarten, at least a nursery."

"Ah, Brother Jiu, you are so cruel. You won't bully others like this." Lin Yanni was amused by Gao Jiu's sudden reversal.

The two chatted relaxedly, but Lin Yanni's mood gradually became heavier, because she felt that she might not see Gao Jiu for a long time in the future. Such a happy day would soon disappear, and the sadness in her heart was conceivable.

She said: "Brother Jiu, my father said that before you leave Wuhan, he would like to have a serious conversation with you."

Gao Jiu agreed happily and said, "Okay, let's go to your house for dinner tonight."

After about half an hour, Wei Daming and Gao Zhiming came to the lounge. As soon as they entered the door, Zhou Zhiming said in disbelief: "Mr. Gao's calculations are completely correct, which is incredible."

Wei Daming asked Gao Jiu to return to the conference room. As soon as Gao Jiu walked into the door of the conference room, the people in the conference room gave him warm applause.

People really didn't expect that Gao Jiu's mental arithmetic ability was so powerful. This was beyond people's cognition. Everyone admired Gao Jiu very much.

Yadeli said sincerely: "Mr. Gao, you are such a mathematical genius. I am now full of expectations for the mathematical model you proposed."

Next, the boring calculations were about to start. Lin Yanni served him tea and water by Gao Jiu's side, and then quietly stayed by his side.

Lin Yanni's handsome appearance, noble temperament and elegant manners made young people amazed. While working, they couldn't help but look at Lin Yanni secretly from the corner of their eyes. They were very envious of Gao Jiu for having such a confidante.

When the calculations were first started, the group leaders reported the data they had made in the preliminary calculations, and then wrote the data calculated by Gao Jiu on the blackboard. This efficiency was still very low.

After running-in and adjustment, Gao Jiu fully utilized the computer's super computing power, designed the mathematical model into a simple program, directly input it into the computer, and let the computer deduce it by itself, so that the efficiency is greatly improved.

Seeing that Gao Jiu's calculation speed was so fast, Wei Daming simply notified the other two calculation teams to stop the work and wait for the results of Gao Jiu's final calculation.

The efficiency of computer operations and manual calculations is incomparable. The work of dozens of people for hours is just a moment for computers. At 4:40 pm that day, the second set of mathematical models was calculated, and the final result could not be reset to zero, proving that this set of mathematical models was wrong.

Gao Jiu made an appointment to go to Lin’s house for dinner, so he said that he would come here tomorrow and said goodbye and left.

Military Order Family Court, Lin Family.

After dinner, Lin Wenhan called Gao Jiu to the study. He has now regarded Gao Jiu as his son-in-law, so he will naturally worry about his future. Today, he wants to understand Gao Jiu’s future plans.

Lin Wenhan learned in detail about Gao Jiu's situation in Taohua Mountain. He first affirmed Gao Jiu's achievements in Taohua Mountain, and then expressed his questions to Gao Jiu.

He said: "Gao Jiu, you may have no future if you occupy the mountain like this. You are now very small and are behind enemy lines. You cannot compete with the powerful Japanese army. You are always in danger. If you are not careful, you may suffer a catastrophe.

Even if you can grow and grow, you will not be able to be accommodated by the government. With your outstanding talents, why not join the government? I believe that it won’t take long to become an excellent senior general.”

Gao Jiu understood Lin Wenhan's concerns. Due to the limitations of history, it was very normal to consider this.

Gao Jiu knew the direction of history, and he defected to the country, which was ultimately a road to defeat. On the other hand, people could not tolerate people like Gao Jiu who were born into bandits, as well as capitalists like Xiao Yuanshan and military generals like Lin Wenhan, would not have good results.

Gao Jiu has not considered his future. However, he believes that it is not the time to talk about this matter. What he needs to do now is to fight against Japan. In the process of the Anti-Japanese War, he will strengthen his economic strength and have a reliable backbone team, and then move overseas and rely on local overseas Chinese to build his own career.

As for where to go, he has not yet decided. He has to take one step at a time. After the outbreak of the Pacific War, he will go to Southeast Asia or somewhere in South Asia to establish his own foundation.

Gao Jiu had to do this because he was no longer alone. Behind him were hundreds of people in Taohua Mountain, as well as Xiao Yuanshan, Xiao Yatong, Lin Yanni, Lin Wenhan and others, and he also had to arrange a way out for their future.

Gao Jiu said: "Uncle Lin, I have considered everything you said. I have my own plans in the future. You can rest assured that Yan Ni will follow me and will not have any worries. As for what I will do in the future, it is not the time to start taking action. When the situation in the future changes, I will report this issue to you again, and you will definitely understand it at that time."

In Lin Wenhan's mind, Gao Jiu was not a reckless person. When he heard Gao Jiu say this, he knew that he had his own considerations for the future. Although he still couldn't see any other way out for Gao Jiu besides joining the Guo Mansion, he believed that since Gao Jiu had already realized this, he might be able to find a path that suits his own development.

Seeing that his goal had been achieved, Lin Wenhan knew that his daughter was waiting for Gao Jiu and wanted to enjoy their two-person world, so he ended the conversation.

Gao Jiu returned to the living room and saw that Lin Yanni was already neatly packed, so she was waiting to go out with him.

It's no wonder that as Gao Jiu was about to leave Wuhan, Lin Yanni wanted to seize this short time and be with Gao Jiuni as much as possible.

Seeing Gao Jiu come in, Lin Yanni said, "Brother Jiu, let's go and watch the movie."

Gao Jiu felt that he was indebted to Lin Yanni, and he was willing to take as much time as possible to accompany her. He said gently: "Everyone is with you. I will accompany you whatever you want."

Lin Yanni was very happy and walked out with Gao Jiu's arm in her arms.

The next morning, Gao Jiu came to the black room again and continued to start his boring calculations.

With yesterday's experience, Gao Jiu designed the calculation procedures more mature and his work efficiency improved a lot. At 2 o'clock in the afternoon, the results of the deduction of the first model were also released, but they were still unqualified.

Everyone began to worry, and now there is only the last mathematical model left. If the final deduction result is still not ideal, it means that the method of cracking the key machine provided by Gao Jiu is wrong.

What makes everyone feel uncomfortable is not that Gao Jiu's three methods are wrong, but that other people can't think of other solutions at all except Gao Jiu.

In other words, it is very likely that their work on deciphering Japanese military codes will be in a dead end.

Yadeli and others were in a very urgent mood, hoping to see the results of the third model calculation immediately, but when everyone saw Gao Jiu working so hard, it was difficult to urge him, so they could only look at him with a glimpse.

Gao Jiu understood everyone's mood, and he immediately expressed his opinion that he would not go to rest, and today he would directly deduce the last mathematical model.

Everyone was very moved when they saw Gao Jiu's attitude. Everyone cheered up and accompanied Gao Jiu to continue the calculation. Gao Jiu also took the initiative and continued the calculation. Even dinner was eaten in the conference room.

Lin Yanni didn't seem to feel too worried when Gao Jiu worked so hard, because she saw Gao Jiu, the main worker, still had a red face and full of energy after working for so long, while those who accompanied him were all a little in a bad spirit and seemed a little depressed.

"Brother Jiu is strong like a cow." Lin Yanni secretly admired in her heart. Suddenly, she blushed, not knowing what she was thinking.

At 10:30 pm, the final calculation result was about to come out, and in the end it was only one step away. Not only Gao Jiu was calculating, but the others couldn't help but start to make plans and make calculations.

Gao Jiu was also a little nervous, and he simply ignored the last step and waited for the final result these people calculated.

The fat young man with a round face was the first to calculate the result. He looked pale and said nothing.

Yadeli and others looked at him nervously, and their mood suddenly became sank. Then the others also finished counting one after another, all of them were covered in dust.

Gao Zhiming walked forward and carefully checked the results calculated by everyone. He sighed and said something that made everyone very discouraged: "It's still not possible, it can't be reset to zero."

Everyone was very depressed, and their eyes looked at Gao Jiu were full of doubts.

Yadeli was in a bad mood, but he didn't seem to be as frustrated as everyone else. He said suspiciously: "No, I also think this mathematical model is reasonable and should not be the result."

Others don’t think so. Everyone has been in the conference room and has seen the entire calculation process. They have not found any problems. The facts have proved that Gao Jiu’s method of cracking the key machine is wrong.

Lin Yanni was also feeling a little uncomfortable. After thinking about it carefully, she said, "It shouldn't be the result. I believe that Brother Jiu has never failed in what he did. Something must be wrong in the middle? Think about it carefully and see where the problem lies."

What Gao Jiu proposed was to summarize the advanced technology that cracked passwords from later generations from the 1940s to the mid-1960s. There should be no problem in cracking such a primary key machine, and he was also thinking about what was wrong.

Everyone thought about it carefully and reviewed the entire calculation process. They could not see any problems. If there was any problem, they could only say that there was a problem with Gao Jiu's calculation result.

Yadeli is an impatient old man. He said to Gao Jiu: "Mr. Gao, I believe that the correctness of the mathematical model you proposed may be due to a part of your calculation.

Can you continue to calculate again? I know it's very hard, but you are young and strong after all, and I, the old man, stay up late with you. Do you think it's okay?"

Gao Jiu respected this old man who made great contributions to the Chinese People's War of Resistance Against Japanese Aggression. Seeing him talking about this, Gao Jiu said: "Okay! I will continue to accompany you. I won't sleep tonight, so I will make a round trip."

Gao Jiu's spirit moved everyone, so everyone cheered up and accompanied Gao Jiu to continue calculations.

It was late at night, and the dark room was brightly lit, so Gao Jiu continued to calculate. This guy was strong and looked full of energy.
To be continued...