Jessica's ugly Xiao is far from knowing how to describe it in words, if you look at this woman's face as a motherboard, if the facial features can be removed from the face like a computer component, individually, the quality is not bad, but it is these good quality components put on this face, but how to look at how it is not coordinated, this feeling is very weird.

Xiao Yuan only glanced at Jessica, and felt very uncomfortable, out of politeness, he couldn't bear to twist his face to the side, and squeezed out a smile at her, fortunately, Jessica didn't put her face at Xiao Yuan for a long time, and after saying a word, she continued to look at the computer in front of her, leaving Xiao Yuan with a fiery red explosion head.

Xiao Yuan breathed a sigh of relief, sat down on a chair from the side, beckoned Xia Jiuying to come by his side, and then focused his attention on the material in his hand, in this material, a specific memory area is defined, and the ultimate goal of the memory battle is to write a memory reading and writing program to occupy this memory area.

Defining the memory area is one of the most important rules in the material, but there are other considerations in the material, such as the fact that programs on both sides of the game can only be run with the permissions of ordinary users, and how to determine the winner.

"Han Xiaoyu, let me ask you a question." Xiao Yuan quickly read through the materials, and then said to Han Xiaoyu, who was waiting on the side.

"What's the problem?" Han Xiaoyu was in a daze at Tang Xinxin, who was sitting not far from him, and heard that Xiao Yuan had a question to ask, so he turned his head and asked.

"The rules mention that the program we designed can only run with the permissions of ordinary users, so after running, if the superuser rights of the system can be preempted by some means, is it considered a violation?" Xiao Yuan asked.

"I'd suggest you focus on the algorithm and don't think about preempting superusers, but if you can preempt superusers, it's not a violation." Han Xiaoyu hadn't answered yet, but Jessica answered Xiao Yuan's question for him, but this time she didn't look up again.

Xiao Yuan was stunned for a moment, the question he asked Han Xiaoyu just now was in Chinese, and he didn't expect Jessica to understand Chinese.

"Jessica is right, if you can preempt superuser privileges, I'll automatically throw in the towel." Han Xiaoyu said.

"Understood." After Xiao Yuan learned about the situation, he said to Han Xiaoyu, and expressed his gratitude to Jessica, but this time he did not get a response from Jessica.

Xiao Yuan didn't care about this, and then he checked the programming environment and some of the software packages he wanted to use, and found that these software packages were available, and these software packages were all standard BSD software packages, this result increased his confidence a little, so he signaled to Han Xiaoyu that he could start.

Han Xiaoyu took out an electronic watch from his desk, called up the counter in it, set the time for an hour, and said to Xiao Yuan, "Now the timing starts, an hour of programming time is not long, hurry up." After saying that, he opened the vi editor on the computer, called up a ready-made program, and stared at it.

"Han Xiaoyu, you have already written the program, and Xiao Yuan has to write it from scratch, isn't it a bit unfair?" Wang Ping raised his own objections.

"Xiao Yuan, what do you think, if you think it's unfair, you can not compare." Han Xiaoyu ignored Wang Ping, but asked Xiao Yuan's meaning.

"It's okay, I don't mind." Xiao Yuan smiled and said, after speaking, he said to Wang Ping, "Wang Ping, don't be impatient, let's talk about it after a game." ”

Wang Ping saw that Xiao Yuan didn't care about it, and he didn't speak anymore, but his expression was still a little worried.

Xiao Yuan focused his attention on his computer, and like Han Xiaoyu, he opened the vi editor on the computer and wrote a program directly in it.

Although Xiao Yuan has never written this kind of memory hegemony program, when a person's level in a certain field reaches a certain height, many problems are actually the same, and the so-called "all changes are inseparable", which is the truth.

In Xiao Yuan's mind, he conceived a picture of the two armies facing each other, and there was a high ground between the two armies, and they would attack this high ground at a certain time according to a certain agreement, and which side occupied this high ground would eventually win.

"There needs to be a command to command and dispatch this war." Xiao Yuan made a decision first, his hands crackled on the computer, and the high-speed input made the sound of keystrokes become one, like the sound of dense raindrops, which quickly attracted everyone's attention.

Wang Ping and several other international students gathered behind Xiao Yuanshi, and when they saw the programs that appeared on the computer in front of Xiao Yuan, their eyes couldn't help but show a light of surprise, and the students who came to Wang Ping were either computer majors or computer majors, although they were not members of this perverted laboratory, but they could enter the University of Berkeley to study, and they were by no means comparable to ordinary computer science students, so, Although Xiao Yuan's program had just written the header file of the C language that needed to be used in the include statement, it also made them feel a great shock.

"This guy is so familiar with the BSD repositories?!"

It is estimated that this is the same idea of Wang Ping's students at the moment, and it is no wonder that they have this kind of idea, you must know that there are hundreds of files in the BSD package, each of which defines some specific functional functions, and when writing a program, which header files need to be used, and in what order these header files are included at the beginning of the program section, they are all particular.

When ordinary people write programs, they generally need to repeatedly consult the BSD header file description documents or source code to finally determine which header files to use, and in what order to include them in their C language programs.

Xiao Yuan didn't consult any information now, he can correctly write out the header files that need to be included, and when he wrote these header files, he used such a perverted speed, which can only show one problem, that is, Xiao Yuan knows the BSD software package well, comparable to some old programmers who have been immersed in the BSD system for many years, and he is just a freshman who is only nineteen years old, so the contrast makes Wang Ping and others can't help but be shocked.

Not only Wang Ping and them, Han Xiaoyu also turned his head to look at Xiao Yuan for a long time, a strange light flashed in his eyes, it seemed that he was very curious about the program written by Xiao Yuan, but it was limited to the rules, he was not like Wang Ping and the others who went to watch it, so after looking at Xiao Yuan a few times, he focused on his own program.

The other two men in the laboratory were also attracted by Xiao Yuan's attention, one of them left his seat and came behind Xiao Yuan, and Wang Ping and they watched, and after looking at it for a while, the originally curious expression became solemn.

Xia Jiuying sat beside Xiao Yuan, her elbows propped up on the table and her hands on her cheeks staring at Xiao Yuan's side face, her thoughts were a little different from others, people often said that men who focus on doing things are the most attractive, there is no doubt that this sentence was fulfilled in Xia Jiuying at this moment.

At this moment, she completely turned a blind eye to the onlookers of others, and her attention was all focused on Xiao Yuan, a trace of obsession appeared in her eyes, her heart was full of sweetness and pride, and she became more and more determined to have a thought, she must hold Xiao Yuan in her hands in this life and never let go.

Tang Xinxin was sitting on the other side of Han Xiaoyu, holding a small mirror to admire herself, when Xiao Yuan became the focus of almost everyone in the laboratory, she also turned her head to look at Xiao Yuan, sneered, withdrew her gaze, and said to Han Xiaoyu: "Xiaoyu, you must defeat Xiao Yuan, don't let me down." ”

"Don't worry, Xiao Yuan has no chance to win." Han Xiaoyu was very excited when he saw Tang Xinxin taking the initiative to talk to him, so he clenched his fists and said very confidently.

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