While a group of roommates were enjoying macarons, Qin Ruoshu quietly climbed into bed and opened the half-read letter...
"...
Can you swim?"
The signature is Zhou Yan.
The letter to Zhou Yan was written with colored pens, and the font was very large. Qin Ruoshu didn't pay attention to the last part just now, thinking it was a confession...
A deep sense of loss arose spontaneously.
A group of roommates who were "dividing the spoils" soon noticed that something was not right about Qin Ruoshu's state.
"Old Qin, what's wrong?"
"Here..." Qin Ruoshu looked frustrated and handed over the letter...
After seeing the content of the letter, the roommates were all dumbfounded: "Old Qin, your classmate traveled thousands of miles just to ask you if you can swim?"
After struggling for a while, a roommate in the dormitory suddenly said: "I feel like there is some mystery here!"
"What other secrets can there be?!"
"Don't you all watch TV series? Every boy's mother will ask a question before the boy gets married: Your wife and I fell into the water, who did you save?"
"Yes!" A group of people suddenly realized.
Qin Ruoshu, who was lying on the bed at this time, felt a little regretful. She regretted letting a group of roommates read the "love letter": couldn't she just call and ask?
At this moment, the phone's ringtone suddenly rang. Qin Ruoshu took out his phone and saw that it was Zhou Yan.
"Hello?" Qin Ruoshu felt a little guilty and didn't know how to face Zhou Yan.
"Have you opened the package?" Zhou Yan's voice was also a bit lacking in confidence.
"Hmm!"
Qin Ruoshu's voice was very small, just a little louder than a mosquito's hum. Looking at this posture, Zhou Yan's scalp went numb, but he didn't have an arrow to turn back when he opened his bow, so he could only bite the bullet and ask again: "Old classmate
, can you swim?"
"Yes!" Qin Ruoshu's answer was decisive, with a hint of resentment in his tone, "But, Lao Zhou, what do you mean by asking this?"
"Before school started, my mother asked a question: Who would you save first if your girlfriend and I fell into the water?" Zhou Yan took a deep breath, "For a long time after receiving your box of macarons, I
There has always been a lingering shadow in my mind, so let me ask you a question, Qin Ruoshu, will you be my girlfriend?"
Qin Ruoshu was stunned by the question. It took him a while to react: "Old Zhou, you just..."
Zhou Yan had no choice but to ask again: "Will you be my girlfriend?"
"Yes! Yes!"
"Alas," Zhou Yan sighed slightly, "the first Singles' Day in this life has already ended before it even begins!"
Qin Ruoshu couldn't help laughing and laughed: "It's like I have wronged you!"
"Okay, no more kidding," Zhou Yan smiled and glanced at the gloomy sky outside the window, "In a few days, there will be a few packages, please check them carefully, including the dehumidifier and dryer.
”
"Oh..."
"Such a big thing has happened. You should calm down first. I should also be busy here and hang up first!"
Although the phone has been hung up, Zhou Yan's heartbeat is still very fast.
As an old house dog who has been single for ten thousand years, Zhou Yan confessed his love for the first time in his life and was able to persist. Zhou Yan felt that he had done a good job.
After calming down, Zhou Yan returned to the computer room and continued to crack the software. However, when he sat down, his mind was filled with Qin Ruoshu's beautiful figure and smiling face...
"Forget it!"
Zhou Yan sighed slightly, clicked on Penguin and School, and changed all his signatures: Fortunately, one person's heart will never be separated.
Zhou Yan's signature was sent out, and a large wave of divers came out, and the sound of "didi, beep, beep, beep, beep, beep" was ringing in the earphones.
"Lao Zhou, you have a girlfriend, who is it?"
"Congratulations!"
Soon, someone among Zhou Yan's high school classmates discovered that Qin Ruoshu's signature had also been changed to "Fortunate to win the heart of the same person, we will never be separated until we grow old."
"Okay, Lao Zhou, with you, we actually captured the beauty of Qin!"
Zhou Yan replied in his space diary: "God has mercy on me. In the past two decades, I have been lucky enough to meet the person who entrusted me with my life..."
After spreading a wave of dog food and successfully attracting a wave of hatred for himself, Zhou Yan had no choice but to log off, turn around, and continue his unfinished cracking mission.
Generally speaking, in order to protect the core algorithms of professional software, the protection "shell" of the program is very hard, and most of them use asymmetric encryption that is difficult to decrypt using exhaustive methods.
Zhou Yan also used a "cracked version" of software in his previous life. Judging from Zhou Yan's current perspective, that is not called cracking: cutting off the network cable and intercepting the software's communication to obtain the key. Such cracking only cracks the software's communication.
Password.
Naturally, the system will not release such a simple task, that is, you need to get the source code of the system.
But the entire software is like a tortoise protected by a tortoise shell. Even if an advanced computing cluster is used to blast it, it will take a long time.
Zhou Yan could only use the most primitive method to search for a group of users who use MATLAB software on the Internet, and implanted a low-level monitoring program into the computers of these users to monitor the code execution of the program.
After just one day of collecting, Zhou Yan had already obtained most of the code of the software. Later, Zhou Yan used this part of the code to find the "shell" that the program used to prevent decompilation from the program.
"Is this done?"
"Yes!"
Although the system has completed the cracking of a software by default, Zhou Yan is not happy. The core algorithm of the matlab program is not something that is very well understood. It just uses the mathematical calculation function to convert the isolated points input by the user into
Convert to function model.
Even though he had obtained the source code, Zhou Yan felt a little confused if he was asked to make a similar software: the core of the software lies in the database built by the software supplier based on countless user data models. p>
After struggling for a while, Zhou Yan eliminated the background monitoring program of the software, packaged it, marked a price, threw it on the dark web, and then started working on ansys, abaqus, and sol.
The core functions of the remaining three software are similar. They are all finite element analysis software, but the focus is different: ansys focuses on structural, acoustic, optical, electrical, and magnetic field analysis, abaqus focuses on engineering applications, and sol is usually used by users.
Simulation coupled with multiple physical fields.
In the years before time travel, Zhou Yan, who was engaged in agricultural machinery development, was no stranger to these software and had used cracked versions of ansys and sol.
There are cracked versions of the software as a foundation. Zhou Yan is not as unfamiliar with these three software as matlab, and he has experience in cracking matlab. It is naturally easy to crack these three software.
However, when Zhou Yan submitted the cracking task, the system did not prompt that the task had been completed.
"What's going on?"
"Task two, there's more to come..."
Zhou Yan had no choice but to log in with his own ID [red panda is not a cat]. As soon as he went online, Zhou Yan found that the feedback area for the nine-section wolf special killing he posted had already been built.
A small part of the feedback is that the anti-virus software is effective, and some feedback is not effective.
Seeing these feedbacks, Zhou Yan's first impression was that the virus had mutated, or that the author of the original virus had improved the virus...
This is not possible!
While collecting virus characteristics, Zhou Yan began to identify the virus's creator based on the virus's propagation path.
After collecting virus characteristics and updating the virus database, Zhou Yan reported the virus's creator: The only way to do this is to remove the virus from the bottom...