On the second day, there was an algorithm analysis by the famous Professor Deng of HKUST, everyone got up early in the morning and was very active, cleaning up and washing their faces, and the stirring of the mouthwash cup, Professor Deng is a doctoral supervisor and vice dean, presiding over scientific research projects funded by the National Natural Science Foundation of China and the University Doctoral Fund. In addition to taking graduate courses, he has taught all undergraduate courses on the fundamentals of algorithms.

There has always been a joke in Central South University of Science and Technology that describes Professor Deng's teaching, he participated in an academic forum on Monday to give a report, flew back to Nanzhou in the early hours of the night, came to teach undergraduates at half past seven in the morning, and flew to Beijing to participate in the operations research meeting the next day, and after making a report, he had to return to Nanzhou non-stop, and there were undergraduate courses on Thursday morning.

Therefore, if you want to listen to Professor Deng's class, you must occupy a seat early in the morning, otherwise it will be really overcrowded. Lao Guo wiped his face with a washcloth, saw Cheng Ran next to him from the mirror, thought of last night's topic, and said, "Didn't you say that there is a photo of your girlfriend, take it out and take a look?"

Wang Xinbo and Li Wei, who were sorting out the books at the desk, looked at them attentively, and they were both holding the textbook of "Computer Algorithm Design and Analysis" that they were going to use today, as well as water cups, which were purely small easter eggs after they were prepared.

Cheng Ran said, "I didn't find it after looking for it, I may have put it at home." Besides, even if I bring it, I won't show it to any of you. "Naturally, I still have a haunt for last night, you go and inquire, when did I want to pretend that no one gave me a chance.

The three of them had to be coaxed, so they really didn't take this matter seriously, they simply went out in a huddle without heart and lungs, seeing the posture of these three goods turning their heads and leaving, the corners of Cheng Ran's mouth twitched twice, and he felt more and more that he had made the right decision.

Professor Deng Xihua's algorithm class was in the large classroom, and when he arrived, he found that many students were present, and even though it was only 7:10 in the morning, people still poured in at an exponential rate every minute. The empty two rows in the classroom seem to be a "glorious tradition" reserved for girls, but in fact, there are many girls who go straight in and find a place to sit down. The proportion of female students at HKUST is less than that of male students, but the quality is not low, and there are many outstanding girls who are expected to come to class in the future and are expected to be motivated by the others.

And Cheng Ran sat with the three goods around him, and after someone found out who was beautiful in the new world, he would poke his elbow one after another, one after another, and then his eyes motioned to look over and watch, and then there were often people such as Wang Xinbo, "Oh, this is not good, give a seven." "Alas, that's good, that's good, superb. Bashi ......".

It's probably a big pastime before class.

At eight o'clock, Professor Deng Xihua stepped into the classroom on time, the person is actually not the age of the senses brought by a string of titles on his body, the first time he saw the real person was much younger than he imagined, Deng Xihua put one hand into his trouser pocket, one hand held a teaching book, pressed slightly on the lectern, looked around the audience, and had a leisurely and calm aura.

After all, he is a famous teacher, and the corresponding feedback brought by this aura was immediately given to him in the field, and the classroom originally had the sound of talking, chatting, and squirming, all of which gradually stopped. For such a doctoral supervisor, the existence of the associate dean-level existence, giving lectures to undergraduates itself carries a top-down majesty. The other party spread out the textbook and went straight to the point, "Let's start lecturing." ”

For many HKUST students, if they do not have to learn and understand the basic concepts first, the class will be a bit foggy. And he also has a singular skill, that is, the students he has come into contact with, basically he has an impression, because a famous professor like him at the end of the University of Science and Technology, there are a lot of people who come around to ask various questions, and the general professor only cares about answering the question, where to remember the person, and if someone has asked a question, the next time he speaks, he can point out the other party's name by the way, and talk about the question asked at that time to give derivative thinking and extension directions.

Such a student is very diligent, and if he is motivated by this, he may be able to maintain his enthusiasm for the subject all the time. This is probably Deng Xihua's set of methods, but to have such a set of skills, it can only be said that his brain is indeed very strong, in the words of the Academy of Mathematics, this is just "redundant operation".

In today's class, Deng Xihua called the names of several people in a row, and asked the other party to answer the question, for example, he called a boy's name in the middle of the class, and said, "In the last class, I talked about what stages of algorithm analysis are divided into, and what tasks each one completes? ”

Then, in the eyes of the class, a boy in the left corner stood up, "A comprehensive analysis of an algorithm can be carried out in two stages. Pre-analysis and post-event testing. A time limit function of the algorithm is obtained by pre-analysis. Post-mortem tests collect statistics on the execution time and actual footprint of the algorithm. ”

His voice was clear, and there was no pause or space for reflection in the middle of the answer, giving a faint sense of such a competitive urgency. Many people turn to the corresponding part of the page, sketch and even take notes. Some people even looked at him many times.

After the students who answered the questions sat down at Deng Xihua's signal, they had a sense of oil, he was also a provincial science champion, but of course he was not as famous as Cheng Ran in Central South University of Science and Technology, and the atmosphere around the University of Science and Technology and some strong people also brought him pressure, but it was not important, the university was a new starting point, and it was also the time to re-rank, and he, like many people, had to strive for the top in this link.

Next, a few even took the initiative to ask questions or elaborate their own opinions. are the same as the previous Li Yuran, belonging to the hardest working category in the university, always on the way to ask the teacher questions, from morning to night in the study room is definitely a frequent visitor, received praise from some professors, thinking that there are a few Nie Chuan's shadow, over time, maybe there will be another Nie Chuan among these people.

And it is very important that without exception, these people are sitting in the front area of the classroom because they came very early, and they are afraid that they will occupy a place in the classroom before dawn at six o'clock. In contrast, the people in the 409 dormitory looked at Cheng Ran, who was in the same row as them in the rear area, and they all felt a sense of guilt. They were admitted to Central South University of Science and Technology, and they were all considered masters, but even the masters in martial arts also had first-class and second-rate points, and several of them felt that they were second-rate masters like them, as if they had dragged down such a first-class master as Cheng Ran.

It's really because compared with those top students at HKUST, they find that they seem to be inferior to each other in terms of talent, IQ and effort.

Li Wei remembered, "By the way, Cheng Ranjun, what kind of book are you going to open every night?"

"Computer Architecture: A Quantitative Approach, which translates to 'Computer Architecture, Quantitative Research Approach'. It is the book of John Sr., the former president of Stanford University, and this book should be the bible in the eyes of high-ranking students majoring in computer science in the United States. ”

Several people looked at Cheng Ran like a book from heaven.

"I'm going to import textbooks, can you understand it?" Although Li Wei and a few people don't understand what kind of book the book in Cheng Ran's hand is, the English textbooks are different, especially the computer imported textbooks, many of which cannot be translated in China, and few translators can accurately translate the precise language used to describe things.

This also requires learners' professional and foreign language proficiency, and even requires readers to be able to have considerable immersion in the latest internationally influential cutting-edge journals, forums, and literature, otherwise the origin, interpretation, and implementation of some of the professional terms are completely unknown. This is also the reason why China's IT lags behind the world, and the international cutting-edge language algorithm architecture is constantly updating and evolving, which basically occurs in first-class university research institutions such as MIT and Stanford, as well as the laboratory research and development centers of related large enterprises and large companies.

Otherwise, in China, even in the computer field, which relies on the Internet to disseminate knowledge, the group of people standing at the forefront of the frontier is only a very small number, and they will have to lag behind for a few months, half a year, and expand the whole situation, which is a gap of two or three years. It is also when many colleges and universities are chasing the IT boom and opening computer majors one after another, but the textbooks are basically three or five years behind the forefront of industry technology. At present, Central South University of Science and Technology may be one of the few universities in China that is at the forefront of computer courses, but it is also extremely backward compared with the United States.

Of course, the current frontier is just a visible past for Cheng Ran, a person who has lived in two lives.

Cheng Ran said to the three people, "It's a little difficult, let's gnaw slowly." ”

……

Professor Deng Xihua's three-hour class, after a few breaks in the middle, was finished, and finally the teaching assistant came to take the sign-in book and asked people to sign in next to each other, and Deng Xihua answered the students who came around to ask questions on the stage.

The teaching assistant handed the notebook to Cheng Ran and his entourage, and after seeing Cheng Ran sign his name, the teaching assistant who was a graduate student in Deng Xihua's hands whispered to Cheng Ran, "Please come to the academic affairs office on the fourth floor in a while, Lao Deng is looking for it." ”

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Happy Mid-Autumn Festival!