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Su Yichen didn't know that he and Lin Dong would actually pass by. When Lin Dong told everyone the story behind the photo in the showroom, he had already arrived at another place on the campus and stopped in front of a new building with a very modern atmosphere.

This was once the location of the Old Red Building of the University of Science and Technology. The Old Red Building was an expert building built in the 1950s. At that time, it was the place for Soviet experts who aided China to live. Later, Sino-Soviet relations deteriorated and all Soviet experts were withdrawn, the old Red Building became the school worker dormitory building, and Professor Luo Shaohua lived here back then.

But now, the old Red Mansion in my memory has long disappeared, and there are no traces of familiarity around me. Everything has become so strange. But deep in Su Yichen's memory, the small red building covered with green ivy seems to be right in front of me. On the first floor to the east, behind the window with lights on the late night club is the teacher and Luo Yan's home.

Standing in front of the old Red Mansion site for a long time, Su Yichen did not cry as sadly as before, but he still felt infinite sadness, deep reluctance and regret in his heart. The changes of time are cruel, and these 30 years have even made him feel that the century of time spent with Ike is even longer.

After leaving the old site of the old Red Building, Su Yichen went to see the library again. The old building of the library also changed greatly from the memory. The new library was so grand, but it looked so strange. He shook his head and sighed. Su Yichen no longer had the interest to continue looking for something familiar deep in his memory. He turned around and left, and walked towards the agreed place.

When he arrived at the agreed place, Li Xiao was already waiting. When he saw Su Yichen, he quickly waved his hand to greet him.

"I'm sorry, I'm late." Su Yichen apologized. He forgot the time he visited, and I don't know how long Li Xiao had been waiting for him.

"It's okay, I just arrived, and I was worried that you couldn't find the land just now." Li Xiao waved his hand casually, and then told him without waiting for Su Yichen to ask that he had already found out about Luo Yan's situation.

When Su Yichen heard about Luo Yan's news, he became a little excited and asked about the results urgently.

"Don't be anxious, sit down and talk slowly." He greeted Su Yichen and sat down. Li Xiao then told Su Yichen what he had asked about. He went to the mathematics department to ask several professors first, but the professors didn't know who Luo Yan was, and he had never heard of her name. Just as Li Xiao was about to go to the Academic Affairs Office to ask again, a retired old teacher happened to come to the office. The old teacher accidentally heard Li Xiao mention that Luo Yan's name was a little different, and asked Li Xiao strangely how he knew about Luo Yan's person.

After listening to Li Xiao's explanation, the old teacher told him that there was indeed a young associate professor in the Department of Mathematics of the University of Science and Technology, named Luo Yan, and she was the only daughter of Professor Luo Shaohua, the old dean of the School of Science. However, Professor Luo Yan left the school shortly after Professor Luo Shaohua's death. He heard that she seemed to have gone abroad later. Because 26 years have passed, and the school's subsequent major changes, over time, almost no one in the school remembers what Professor Luo Yan did back then.

"Has she gone abroad?" Unconcealed disappointment appeared on Su Yichen's face. He never expected that this would be the result. But after thinking about it carefully, it was not impossible.

Luo Yan once studied at Princeton University, one of the Ivy League universities in the United States. After learning that she was missing a few years later, her father, Professor Luo Shaohua, suddenly passed away. This must have caused a huge blow to Luo Yan. For her, this place was no longer a place worth nostalgia, but a place of sadness. The departure of the two closest relatives made her heart lose all her thoughts. With Su Yichen's understanding of Luo Yan's personality, she is likely to make the choice to leave school, and going abroad may be the final decision she made.

So, where did Luo Yan go? Is it the United States? Or Hong Kong? Or other places? Su Yichen thought hard, because these are possible. The reason is very simple. Luo Yan once studied in the United States, but he also knew that Luo Yan had an uncle living in Hong Kong, and there was also a distant aunt who seemed to be in some European country, which means she could go to these places. However, the world is so big, it is not easy to find someone who had long lost contact in the vast crowd.

For a moment, Su Yichen didn't know what to do next. He had fantasized about the scene where he and Luo Yan met again. The girl at that time might have become old and old now, but the feelings for her in Su Yichen's heart will never change. He just wanted to find her and find his lover, because this was the person he cared for and loved in his life!

But reality gave him such a cruel blow. First, there was news of his mentor's death, and then Luo Yan's whereabouts were unknown, which made Su Yichen feel extremely empty and uncomfortable.

"Mr. Su..." Looking at Su Yichen's painful expression, Li Xiao didn't know how to comfort him, and he was also curious. Although Su Yichen explained to him the reasons for asking about Professor Luo Shaohua and Luo Yan, he didn't know what to say. Judging from his feelings, the young man in front of him seemed to have a very different relationship with Professor Luo's family. But since Su Yichen did not mention it, Li Xiao was not convenient to ask, but emotionally speaking, he was very willing to help Su Yichen.

Suddenly, a thought flashed through his mind, and Li Xiao quickly said to Su Yichen: "Actually, it would not be impossible to find Professor Luo Yan's whereabouts..."

"What! You said you have a way to find Luo Yan?" Su Yichen's body shook suddenly, and he quickly grabbed Li Xiao's hand and asked anxiously.

"Don't be excited Mr. Su, I just said it's possible, oh, my hands..."

"I'm sorry, I'm so sorry..." Su Yichen's strength almost cut off Li Xiao's wrist. He hurriedly let go and apologized repeatedly, but he still couldn't wait to ask what the solution was.

"Actually, the solution is very simple. Try searching on the Internet, maybe it's okay." After rubbing his numb wrists, Li Xiao did not blame Su Yichen for being reckless and gave the answer.

"Online search..." Su Yichen repeated these four words thoughtfully.

Li Xiao nodded, afraid that Su Yichen would not understand the meaning of online search, so he roughly explained the purpose of computer network to Su Yichen, and then took the initiative to invite Su Yichen to go to his dormitory to use the computer to search and query.

Su Yichen is actually not unfamiliar with the meaning of computer networks. You should know that he was an expert in this field back then. As early as the 1970s, foreign scholars proposed the idea of ​​computing networks. In the early 1980s, local area networks began to be used in national computer centers. 30 years later, with the development of modern technology, the use of computing networks today must have exceeded the level of that year. But as for what extent it has developed, Su Yichen has not yet officially contacted them after his return.

With curiosity, Su Yichen followed Li Xiao to the graduate dormitory. Li Xiao lived in a good place, of course, this has something to do with his family background. You should know that ordinary graduate students cannot afford to live in a dormitory building with a single family. Open the door and invite Su Yichen into the house. When they walked into the dormitory, they found that this was a two-bedroom and one living room. The living room was not big, about ten square meters. There was a sofa and dining table and chairs, which looked very simple. The two rooms were Li Xiao's bedroom, and the other was set up by him as a study and studio. The computer was placed on the writing desk in the study. When he entered the study, Li Xiao turned on the computer casually. When the screen lit up, a operating system called Windows 8 began to start. Not long after, the computer desktop jumped out of the screen, indicating that the startup was successful.

Looking at the computer in front of him, Su Yichen felt a little moved. Although he was the first to come into contact with the computer, the lines of data popped up when the computer started searching were displayed. He keenly discovered that the configuration of this small computer was not simple, with the clock frequency as high as 2GHz, which means that this computer can perform 2.2G operations per second, which was incredible back then.

What's more, in addition to the super high clock frequency, its other series of parameters also surprised Su Yichen. However, it is not the time to study computer institutions. Sitting down on the chair next to Li Xiao, watching Li Xiao skillfully clicking the icon of the previewer with his mouse, and then a network page popped up on the computer desktop. Then Li Xiao operated it on it and opened a search website.

"Luo...Yan...Full Mathematics...Shimen...Associate Professor of Science and Engineering..."

Li Xiao entered several keywords in the search bar, and after typing, he picked up the blue button on the right of the mouse. In an instant, the page jumped, and lines of websites marked with red information appeared in front of them.

(Today, a reader left a message saying that there are too few updates every day, it is best to update 23 chapters a day, etc. In fact, I also want to update more, but I feel uncomfortable in the past few days, and I feel very uncomfortable with colds and coughs. In addition, this book can be said to be the most thoughtful book to be written so far. Each chapter has to be revised repeatedly, and it is a meticulous work. Maybe everyone doesn't believe it. The book has been revised five times before and after, and the idea has been made since three years ago. The plot has been overturned and rewritten several times, and even deleted the manuscript that had written nearly 200,000 words. This is the final result.
Chapter completed!