data repair

The questions in the second round are multiple-choice questions. Choose one or more answers from the ten options. If you are all right, you will enter the next round. If you are wrong, you will be eliminated, and you must be fast.

Yuxing knew through the mental power of telecommunications that the entire test server group still has some shady functions.

For example, timing, record the time for each contestant to answer the test questions of each level of difficulty. It is also an F-level question. It took you 30 seconds to answer it correctly, but he only had 25 seconds. This reflects the difference between the contestants. difference.Of course, the gap between a few seconds and tens of seconds for multiple-choice questions is not obvious. After all, the amount of text description for each question is different.But later, when programming questions arise, this kind of reference will reflect its value.

Another example is the function of "increasing the difficulty of the questions with less time". This function is different from the obvious rule that the number of people decreases and the difficulty of the questions increases accordingly. The shorter the answering time for one round, the difficulty of the next round of questions will increase invisibly. Anyway, "the number of people will decrease and the difficulty of the questions will increase", and the contestants in it will not be able to feel the change.And each candidate's real performance has long been faithfully recorded in the database of the test server group, which is clearly grasped by the Americans.

Therefore, Yuxing monitored the entire examination system with telecommunication mental power while answering the questions, ensuring that his position in the next round would fluctuate between the top [-], neither outstanding nor lagging behind.There are still many tasks to come to the United States this time. Although he is the one who is put on the bright side to attract firepower, there is no need to be the first bird.A mediocre grade is enough to cross the gap.Of course, if the comprehensive scores of the domestic participating teams really entered the top three, he would not mind giving a boost and bringing the collective honor back to China.

In a word, Yuxing's plan is not to hold back the participating teams, and he doesn't mind being the champion when the participating teams are struggling.

However, judging from the information fed back by the telecommunication mental force.The possibility of the domestic participating teams wanting to win the championship is very slim, because they have just entered the third round, and there are only about 90 members left in the participating teams out of 50 people.

The third round of topics began to become conscious.It was a programming question, and almost all the contestants who entered the third round got the same questions, and the text descriptions seemed to be varied.In fact, after careful analysis, the needs and purposes of programming are the same, that is, to program a scanner. As for whether to scan information transmission ports or scan system vulnerabilities, it is up to the players to decide.

"Mother Fakeyu!" Yu Xingwo cursed in front of the computer screen, "Isn't this fucking wrong? And it's so blatant."

To put it bluntly, a scanner is a primary hacking tool and the most basic hacking tool.To put it simply, it's as if a thief has entered a residential building. His purpose is to steal things, and it doesn't matter which house he steals.The key is to be able to enter the house, but when he looked upstairs and downstairs, hehe, he found that some doors were not closed tightly, and it was a lie.And there is no one, so it's not easy to catch!The process of checking upstairs and downstairs is called his scan!

Generally, hackers who are not popular use scanners compiled by others. When someone can du li write a scanner that suits him, he is already an entry-level hacker.Although hackers of this level are not very threatening, they still have technical skills.It can be called a talent, and as long as it is a talent, the US Immigration Service is willing to accept it!

What?What did you say?It is possible to infiltrate spies from other countries.For the cattle of the Immigration Bureau, this is not important. What is important is that the tax money that Congress invests in the major intelligence agencies and counterintelligence agencies every year is not wasted, and these units have something to do.

Yuxing thought for a while, but still managed to write a scanner.However, the function of the scanner he compiled is satisfactory, but the code is too redundant. He just wrote three, four or even five lines of functions that other people can achieve with two lines of code.

Such a scanner is naturally slow to use, and what is time to a hacker?That is life!Find the door quickly, open the door quickly, rummage through boxes and cabinets to steal things quickly, and exit quickly. *In a word, a fast hacker is not necessarily a top hacker, but a top hacker must be fast, all-around fast, and rhythmically fast.

It is precisely because Yu Xing compiled a "bloated" scanner, which caused his ranking to drop below 1000 when he entered the fourth round. Even so, he was still in the first group among thousands of players, let alone The more than [-] unlucky ones who have been eliminated at this time.

Sure enough, the topic of the fourth round was just as Yuxing expected. An ip address was given, and the contestants were asked to find a way to access the server with this ip, and create an account with their own entry number as the user name.

If the previous round of writing a scanner was considered a normal selection, the requirements of the fourth round of questions are already a living invasion.However, the ip addresses mentioned in the title are all in the ip range of Harvard and Massachusetts. Yuxing checked it with the mental power of telecommunications, and the remaining 3000 contestants were assigned only ip addresses. More than 30.

The most important thing is that each server has limited authority to create accounts, and a single server can only create fifteen accounts, which means that if you want to enter the next round of competition, you must kill at least 100 people.

It is conceivable that at that time, each server will have n people scanning, and n people competing for permission and trying to create an account, how lively it will be can't be described in words.

As for the guy who can get out of the many players pulling each other's legs, no matter how strong the player is, the players will be convinced without the organizer saying anything.Besides, when trying to enter (invade) these servers, it does not mean that you are safe. There are so many players who dislike each other. It is not impossible to test the computer and completely kick the opponent out.

I thought that this kind of illegal behavior would have some scruples among players from various countries, but they were mostly excited.Is there anything more exciting in the world than being able to blatantly invade?

The answer is no.

Therefore, at the beginning of the fourth round, each player had an obsessed expression on his face, as if he was in the state of being addicted to cs for the first time after playing a few rounds, and some even shouted in the arena. cried out.

Indeed, in the fourth round of the competition, they just used their own computer technology to kill each opponent instead of guns.

Yuxing's telecommunications spirit also discovered an interesting thing.In the fourth round, not all players quit voluntarily, and the entry numbers of those withdrawn players were recorded separately into another database.

I have to say that voluntary withdrawal is not necessarily a good thing, because there are only two possibilities for voluntary withdrawal, one is the ability to easily create a server account, and the other is that you do not know the technology in this area.But you can even make up a scanner, dare you say that you can't hack the server at all?No one believed it, and it became logical to store the numbers of these people separately.

There is a total time limit for the entire fourth round of the competition. Fifteen players who have server account permissions will automatically enter the next round when the specified time is up. There are more than 30 servers, and there are just over 500 players.

However, the contestants used the teaching computers provided by the two famous schools, and did not have suitable tools at hand. A few of them downloaded some technical tools from their online mailboxes, and more contestants wrote some simple tools by themselves for Help hack the server.

Therefore, the battle to seize the server account quota has entered a fierce stage from the very beginning.Yuxing could only imagine how fierce the battle was when he saw that the number of eliminated people in the upper left corner of his computer screen was constantly rising.

Yu Xing has the mental power of telecommunications to drag the bottom, and he didn't mess up at the first time. He was like a high god, silently watching all the actions of the players who were assigned to the same IP server as him, and quickly found out Got a few good guys.

These guys were the first players to create accounts in the server and successfully withstand the attacks of others.Not only that, but they also sell out other players who have created accounts from time to time, and together with external attacks, they cancel these newly created accounts and make room for other people to drill in, so that the pressure on the few of them will naturally be great lightened.

Yu Xing checked, and without exception, these wretched guys are all little devils, and there are even Noda and Goto among them.

As for that guy Jiushou, Yu Xing reckoned that the Crazy Chicken Claw is not healed yet!What he has to do now is to hack all the competition computers of these little devils when the whole time is about to come. At that time, they will not even have the tools to do "cases", what a fart!But before that, Yuxing must first ensure that his game computer is correct.

Because Yuxing has been hiding in the sidelines to watch the excitement, he just scanned the available ports of the server and never launched a real invasion to it, so no players came to find fault with him.On the contrary, the computers of his front, back, left, and right players crashed or restarted from time to time.

Suddenly, a player in the front row jumped up and shouted, "Wow, it's smoking!"

No, white smoke leaked out from the gap of the chassis placed on the table, and Yu Xing even heard the "chi chi" sound of the hard drive inside spinning too fast.

It seems that this player has committed a lot of crimes. He may have offended some villain, and even hacked a hardware damage virus into his computer.

The Massachusetts professor who invigilated the exam on the spot turned pale, and called the contestant whose case was smoking out of the competition field.But why does Yuxing feel that the old professor's eyes are full of jokes?

Fully launching the telecommunication spirit, Yuxing quickly found out that Harvard and Massachusetts had ordered a batch of new computers more than half a month ago, and the computers used for the current competition were old products several years ago.

Yu Xing instantly understood what the gang of foreign grandchildren were up to.Sure enough, before he finished his thoughts, there were another twenty or thirty players' chassis emitting blue smoke.