"Well, that's what you mean." Duan Han said as she rummaged through the small bag she had with her and took out a lot of things.

I want to mention here that Duanhan, like other beautiful girls, has to carry a bag with him. But the use is different.

Other girls bring bags to highlight the brand-name logo on the bag, of course, there may be all kinds of cosmetics, makeup mirrors, lipsticks, masks, perfumes, aunt towels and so on. The old end is also a bag that never leaves his hand, but the contents of this bag are very strange. Notebooks, slide rules, drawing tools, surveyors, pens...... Well, there is also a small high-precision optical telescope.

In Xu Liang's understanding, this is a set of tools that can multiply and divide within 100 seconds at any time.

There is no way, Lao Xu's understanding of mathematics is limited to this.

He asked her tentatively:

"You can use these things to figure out the code for that warhead?"

"Of course not!" Duan Han said confidently.

"What do you want?" Duan Han glanced at him, "This is the most sophisticated Dutch weapon code, how can I figure it out with a pen?" As I told you, it is a prime number theorem problem, which simply means that you can convert a password cracking problem with a complexity of the Nth power or higher into a relatively simple polynomial difficulty level, but it still requires a lot of computing power. ”

"Why don't I think it's easy at all?"

“……”

Xu Liang: "In this case, you can tell me directly if you can do it?" ”

"Yes." Duan Han replied, "But I need to make some software modifications to my remote control." It is necessary to first prove the theorem, then to use the theorem to make an algorithm, and then to receive the data of the warhead, in short...... It takes time. ”

"And it's not just that." Duan Han continued, "In addition to being able to get the password of this warhead through cryptography, you can also crack the encrypted communication and get in touch with the middleman. All in all, the rational thinking ability that you have helped me with this part is definitely not a loss. ”

What can you do if you really lose, just a girl like her...... However, the middleman that the old man said made Xu Liang seem to remember some things before.

Duan Han held Alex's mobile phone in her hand, as well as her own super remote control:

"Do you remember, since we got this phone, we've received a lot of updates on the tsunami. But the person who sent the message never found out. You've been busy jerking off just now, so I took the opportunity to study the way this information is encoded, and after deciphering it, I found that this encoding method is particularly familiar. ”

Duan Han: "This is written in a computer language that I made myself when I was a child!" ”

Xu Liang: "The language you wrote?" ”

Writing a computer language is much more difficult than writing a program in a computer language. It's like every elementary school student can learn English, but it doesn't seem so easy for elementary school students to invent English.

"Well, I made up the language. At that time, it was specifically for dealing with a certain type of engineering problem, and later I posted it on the forum myself, and I also named this language 'Duanhan language', which was only circulated in a small area. But I don't see many people using it. ”

Duanhan language?

Sounds familiar.

I remember that when I sneaked into the research institute last night, Lao Duan also told him that she invented a kind of code called Duanhan code when she was a child.

"Do you remember last night when someone sent us a message in Duanhan code?" Duan Han Dao.

Xu Liang: "I remember." That camera, long time no see. And remind us to run quickly. ”

Xu Liang remembered it, and at first thought that the camera was Alex's hands and feet, but the analysis of the motive did not make sense, and his expression at that time was unnatural, it was possible that he was fishing in troubled waters. It's just that things have been messed up since then, and I forgot about this stubble. But now bring it up......

"Because we both use the language and code I invented to send information, I have very good reason to believe that the person who sends us a message through Alex's phone and the person who sends us a message through the camera is a person."

Duan Han paused for a moment and continued, "And you just quietly gave me Nie Xing's mobile phone. I also used that background controller to hack in, and found that all the information related to the tsunami was written in the 'Duanhan language'! ”

Xu Liang thought for a moment: "I understand what you mean." You mean, Nie Xing's so-called middleman, the guy he said helped him make deals on the big ship, has been in contact with us all the time. ”

Duan Han said: "That's right! That's what it means. “

Xu Liang: "These three people are actually one person?" ”

Duan Han: "That's right! And that's not all. Not only one person, but this so-called middleman is also very likely to be my fans......"

This mysterious person, this guy who keeps sending us messages...... Fan of Duanhan?

Xu Liang glared.

Duan Han: "You want to." The coding languages I invented are not very famous, they are just more practical gadgets. But this man learned it all. You must know that these basic things are difficult to learn, and it takes a lot of effort, and this person is willing to learn these things, and he has learned them all. So this person may be someone I know, and probably a fan of mine. ”

"Where did you come from, fan, let me ask you?"

"Hmph, I have a lot of fans. It's just you, you never treat me as a baby......"

Duan Han's mouth flattened after speaking, and he added, "I have to hurry up and get that math problem out...... This would solve the problem of the use of that warhead, and it would be possible to break through the current information blockade limits. In the past, my fans had to send messages at a fixed time, that is, when there was a loophole in the information blockade, and if this math problem was made, you could have two-way communication anytime, anywhere! You'll be able to know what's going on on the big ship! ”

"Well, aren't these two very useful?"

"Isn't that part of your use not at a loss?"

After Duan Han finished speaking, he ran to the side and took out various pen tools and counted them.

Not to mention that little serious energy, it's quite cute.

Xu Liang glanced back at her: Hey, this girl has this kind of ability, no matter how bad the surrounding environment is, she can do her homework seriously.

Duan Han seemed to feel something, raised his head and glanced at him, and snorted:

"Math is the most useful. You can also learn math for me honestly in the future! ”

Xu Liang smiled.

Let me learn math? You might as well kill me!