Chapter 376

PS: there should be more than ten thousand words to finish the competition in one breath. Don't miss it!

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"congratulations to Imperial College for solving [problem b] in 11 minutes and 09 seconds!"

With the announcement of the competition committee, behind the area where the three contestants of the imperial college team are located, a balloon with the symbol of "first-problemsolved" is raised.

This is the honor of the first team to solve each problem.

Huang Youjie was slightly disappointed when he heard that it was Imperial University of technology. He thought it might be abin who solved [problem b].

"Imperial Polytechnic University is very strong. There's no doubt about it. It took 11 minutes and 09 seconds. It's very powerful." Ding Yue frowned.

According to this trend, will Wucheng University of Arts and Sciences not be able to win the championship?

The competition system of ACM competition is to calculate all the accumulated time of answering questions. The shorter the answering time is, the better the chance of winning the championship is.

If there is still the last question left, the time gap between many colleges and universities is only a few minutes. When it is more than ten minutes, there is a chance to catch up with the last question.

There is a gap of even a few and a half hours.

I'm afraid that those universities with abnormal strength can solve the problems in the first few minutes or so, so it's more and more far away from other universities.

No!

"Wucheng University of Arts and Sciences successfully passed [Topic B], which took 11 minutes and 26 seconds!"

The announcement of the competition committee suddenly cheered Ding Yue!

My own Wucheng University of Arts and Sciences!

Ding Yue was surprised that he was the second university team to solve [problem b].

In the first question, the time ranking is higher. The second question is the second one, and it's only 17 seconds different from the Imperial University of technology, which is the first one to solve [question b]. Isn't that a gap at all.

"Brother Yue, abin, they are awesome! How quickly did you solve this problem? " After hearing the announcement from the competition committee, Huang Youjie excitedly grabbed Ding Yue's arm.

"Hahaha, it seems that abin really didn't let me down. Chen Jun and Ouyang Chen are not bad either."

With such good results, Ding Yue was naturally happy.

Considering the time spent on the first and second questions, I'm afraid Wucheng University of Arts and sciences can be among the best?

Then one after another, St. Petersburg National University, California Institute of technology, Nanyang Institute of technology, Haicheng Jiaotong University, Moscow State University and other universities also passed [Topic B]. In fact, everyone spent almost the same amount of time, at most one or two minutes.

These are the first echelon of participating universities, and their strength is very strong from all aspects.

As an opponent, we must pay attention to it.

Subsequently, more than a dozen other colleges and universities have also passed [Topic B], including Northwest University of science and technology from Xiaguo.

This time, there is more than one university from Cape Town in Africa that has broken down in [problem b]. In addition, there are three universities that have problems in solving [problem b].

Finally, the 30 minute answer time passed, and the four universities failed to get results.

In this way, the University of Cape Town from Africa completely lost the chance to compete for the ACM championship.

Then about 30 other universities are divided into two echelons. The first echelon is St. Petersburg National University, Imperial University of technology, California Institute of technology, University of California, Berkeley, Haicheng Jiaotong University and other powerful universities.

Of course, Ding Yue's Wucheng University of Arts and Sciences is also in the first echelon, and after answering the two questions, the results are in the forefront of the first echelon.

The difficulty of this question is greater than that of a question. The competition starts from [question C] and becomes exciting.

Because after the third question was issued by the competition committee, all the teams in Colleges and universities were busy answering the questions.

This time, no university has solved [question C] in less than ten minutes. The most important thing is that the answer time given by the competition committee is actually 45 minutes.

The time to answer a question has increased, which means that the difficulty of the question has risen sharply.

University of Cape Town team is not very strong university, in the face of [Topic C], some at a loss.

"This program seems to have no way to solve it!"

"Impossible. Will the competition committee issue an unsolvable problem?"

"Can you try to solve it in C?"

"I think it's too difficult, or impossible at all."

The teams from the lower performing universities were immediately baffled by this [Topic C]. It was like a roadblock.Through this question, the computer strength of the strong team and the team is not too good to distinguish the team.

In the first echelon of the University team in the face of this problem, did not show any difficult appearance, everyone in an orderly way to solve the program.

With the strong support of his two teammates, Xu Bin's programming is like a duck to water.

This problem is really very difficult, but for a computer genius like Xu Bin, the difficulty is nothing more than the process of writing a program is a little more complicated, not an unsolvable program problem.

Like Xu Bin, the competitors of the other first echelon universities are calmly programming to solve this problem.

However, some of the contestants from the second echelon of colleges and universities performed well and were treated calmly as the first echelon of colleges and universities.

Some of them began to discuss with three people.

Discussion means that they have no idea to solve the problem at the first time, which is a waste of time.

After all, ACM International Undergraduate Program Design Competition is about who can solve the program problems given by the competition committee faster and more efficiently.

Twenty minutes passed.

It's still very quiet on the field, and there is no university team that has solved [problem C] for the first time.

Even Ding Yue can't help but hold his breath, thinking about this topic is so difficult?

The first two problems were basically solved by colleges and universities after ten minutes. Now this problem has been solved for 20 minutes, and there is still no movement.

[live broadcast room of science and education channel of national TV station] -

"I'm a computer major. If you'll excuse me, I'm just dumbfounded."

"Twenty minutes? Or did not the team solve the problem? "

"Hard Yazi."

"This question should be a good chance to score. Haicheng Jiaotong University is going to rush!"

"Wucheng University of Arts and Sciences!"

"Northwest University of science and technology, give me a rush!"

"It's over. I can't understand the third question of ACM competition

"It's really difficult. It's very complicated to solve this problem."

"Yes, it's not only complicated, but also a little carelessness will lead to program errors. It's very difficult."

In the studio of science and education channel of state television, more than 20000 viewers are from Wucheng University of Arts and science.

This ACM International Undergraduate Program Design Competition is very important for Wucheng University of Arts and Sciences.

Because this is the first international competition of Wucheng University of Arts and Sciences, many students of Wucheng University of Arts and Sciences spontaneously pay attention to the competition.

No!

The scene of the game.

Finally, a voice that everyone is familiar with.

"Congratulations to Moscow State University for successfully solving [problem C], which took 23 minutes 41 seconds!"

Bang!

With the announcement of the competition committee, an orange balloon marked "first-problemsolved" was raised behind the three competitors from Moscow State University.

In fact, the color of each balloon is different.

"It seems that the time required for each of the following questions should be more and more." When Ding Yue saw that Moscow State University had successfully won the first place in this question, he could not help but sigh.

The time of this topic is almost double that of the previous one.

"Moscow State University is very strong. It has almost won the ACM competition with St. Petersburg State University in recent years!"

Huang Youjie said with a mobile phone in his hand.

He just checked the information and found out that Moscow State University and St. Petersburg State University seem to have won quite a lot of ACM competitions in recent years.

"I just want to know when they will solve this problem!"

Ding Yue's expression became a little dignified.

If each of the following questions takes a long time, then the variables behind may be relatively large.

For example, St. Petersburg National University, which was the first to pass the first question, has yet to solve it.

No!

"Haicheng Jiaotong University successfully passed [Topic C], which took 24 minutes and 07 seconds!"

The second one to solve [problem C] is Haicheng Jiaotong University.

It seems worthy of being the most promising University in China, with extraordinary strength and even the opportunity to compete for the champion.

No!

"Imperial College of technology successfully passed [Topic C], which took 24 minutes and 29 seconds!"

No!

"Wucheng University of Arts and Sciences successfully passed [Topic C], which took 24 minutes and 33 seconds!"

Soon, suddenly, two universities in a row solved this problem in less than five seconds.And one of the universities is Ding Yue's Wucheng University of Arts and science, which is almost better than Imperial University of technology in this subject.

"The gap is not big, the gap is not big, OK!" Ding Yue was temporarily relieved when he heard the time score of this topic in Wucheng University of Arts and Sciences came out.

And the difference between the first is only a minute, this minute in the later topic inside the influence is not big.

"President Ding, it seems that we are doing well in the three questions of Wucheng University of Arts and science."

Wen Ruohan said happily.

"Well, I can only say it's OK." Ding Yue took a look at Wen Ruohan, who was very excited, and said: "it's necessary to keep it steady until the end of the competition, and then other colleges and universities come one after another. In this way, there should be opportunities."

The second problem is that the first and second problems of St. Petersburg State University of technology will be solved a little slowly.

On the contrary, like Ding Yue's Wucheng University of Arts and science, the score of each question is relatively high, and the time gap between the first and second place is not big.

In this way, Ding Yue's time performance in Wucheng University of Arts and sciences may be ahead of others.

However, the performance of St. Petersburg National University has always been relatively good, and Caltech, like Wucheng University of Arts and technology in Dingyue, has never won the first place, but its performance has always been in the forefront.

Sometimes even better than Ding Yue's Wucheng University of Arts and Sciences.

45 minutes passed.

In the end, only 25 colleges and universities passed [Topic C]. This time, nine colleges and universities were directly blocked. We can imagine how difficult the next topic will be.

"Brother Yue, every question behind this is more difficult, isn't it?" Huang Youjie, sitting beside Ding Yue, can't help asking.

"That's for sure. Every next problem will bring down one university after another. If only one problem is not solved, then it's basically out of the league with the champion."

Ding Yue nodded and replied.

"Ah bin, they must not make mistakes!" Huang Youjie suddenly became nervous.

The third question has already baffled nine universities. Huang Youjie is not nervous.

Ding Yue is to appease the old yellow nervous mood, said with a smile: "old yellow, we have to believe abin them."

Actually.

Ding Yue said so, but he didn't have any bottom in his heart. Believing is believing, but it's really an unknown whether he can pass the customs all the way.

Isn't the sixth and seventh questions going to be difficult?

With the end of the third question, the competition committee soon opened the fourth question.

After all, the competition time is five hours in total. Although it may be extended for various reasons, we should not waste too much time between each question, because the longer the interval, the easier it is for the contestants to lose the feeling of hot hands and thoughts.

[Topic D] here we go.

In the competition area of Wucheng University of Arts and science, Xu Bin sits in front of the computer, with Chen Jun and Ouyang Chen on his right.

"Director Xu, this is a security loophole completion procedure." After analyzing [Topic D], Chen Jun said to Director Xu Bin, "it seems that it's very difficult. We can solve this problem by...

if Chen Jun is allowed to solve it alone, I'm afraid Chen Jun has no idea.

But this is a three person team, and there is director Xu Bin in charge, so Chen Jun is not so worried.

"Security vulnerabilities?"

After hearing Chen Jun's words, Xu Bin couldn't help looking at this question.

Security vulnerabilities of the program, Xu Bin favorite.

Since he began to study computer science in Wucheng University of Arts and Sciences, Xu Bin has been working on a security system.

At present, all the basic network equipment in Wucheng University of Arts and science has a security system, which is independently developed and designed by Xu Bin.

Starting from the fourth topic, almost all the three contestants of the University team were discussing for the first time.

That's right!

The first three problems, many colleges and universities see the problem, has begun to write programs to solve the bug.

And the fourth question, if you want to complete it in an efficient way, I'm afraid it's not so easy.

"If the first three questions are appetizers, then the fourth question begins, and the real difficulty comes."

"It seems that this problem is not well solved."

"I have to say that the problems of ACM competition committee every year are very difficult, and those who can successfully solve seven problems are all at the top level in the world."

Many people who love computer programming at the scene begin to talk about it.In fact, there are many computer experts in the audience. After all, the influence of ACM competition is quite big.

However, even if the computer master, in the face of the fourth topic, have to sigh about this topic is actually quite difficult.

But these computer experts did not say that this problem can not be solved.

The solution can certainly be solved. It depends on how the teams of colleges and universities solve it.

"This security vulnerability seems exaggerated, but it's actually not very difficult." After reading the title, Xu Bin began to fix this security vulnerability.

The fourth topic is to let the participating university teams fix this security vulnerability through the program.

Since we want to fix this security vulnerability, we must first understand how the programming code of this security vulnerability is.

This is the first big difficulty for many colleges and universities.

But for Xu Bin, a computer genius who has been exposed to numerous security vulnerabilities, this seems not difficult.

Soon, Xu Bin found the programming code of this security vulnerability almost at the first time.

Then start to fix according to the security vulnerability.

The competition committee has given a whole hour for this question, which shows that the competition committee's evaluation of the difficulty of this question is very high.

"Director Xu, do you know the programming code of this security vulnerability?" Chen Jun see director Xu Bin directly began to repair the security loopholes, can not help but be surprised to ask.

While others are still analyzing what kind of programming code this security vulnerability is, director Xu Bin is on the way to fix it.

This means that director Xu Bin is ahead of other universities in this topic!

"Yes, I've done security systems and tried a lot." While fixing the security loopholes, Xu Bin said to Chen Jun, "it's really a coincidence."

After hearing the speech, Chen Jun didn't ask any more questions, because if he asked again, it would delay director Xu Bin's time to fix the security loophole.

Chen Jun and Ouyang Chen's role in this problem has become much smaller. They are basically director Xu Bin's personal show.

Ding Yue in the background lounge to see Xu Bin seems to have begun to write programming code to repair security vulnerabilities, immediately feel a little excited.

"It seems that abin is determined to win this topic." Ding Yue said excitedly.

"Yes? Why? Has abin started to fix the security loopholes? Contestants from other universities are still discussing it! "

Huang Youjie also saw the scene of the game through the screen in the lounge.

You can see the pictures of the 34 teams from colleges and universities. Most of them, including the three competitors from the first tier of St. Petersburg National University and Imperial University of technology, are still discussing how to fix this security loophole.

Xu Bin of Wucheng University of Arts and science is already repairing. Chen Jun and Ou Yangchen seem to have completed the task. Xu Bin, who is responsible for programming and repairing security vulnerabilities, is responsible for everything.

Gradually, more and more people began to pay attention to the competitors of Wucheng University of Arts and Sciences.

It seems that the way they solve this problem is different from that of other participating universities. Almost without much discussion, they directly start to fix the security loopholes?

27 minutes and 30 seconds later, the jury group of the competition committee received the "answer paper" submitted by Wucheng University of Arts and Sciences.

"Has this security vulnerability been fixed so quickly?"

One of the judges in the panel looked at the colleagues and asked.

"Let's take a look first. According to past experience, this vulnerability program takes nearly 40 minutes." Another member of the panel said.

Then the judges began to rate the "answer paper" submitted by Wucheng University of Arts and Sciences.

About three minutes later.

"This... Actually fixed the security loophole!"

All the judges were surprised!

[Topic D] is the only program design topic with security vulnerability in ACM competition, which is also very difficult, otherwise it is impossible to give a whole hour of answer time.

In 27 minutes and 30 seconds, the team of Wucheng University of Arts and Sciences has successfully solved this security vulnerability.

For the judges of the panel, this is incredible!

"Genius, it's a real genius to be able to fix this security vulnerability so quickly."

A judge named smeagol said with emotion.

"Pass, announce!"

The judges of the jury group unanimously agreed that the "answer paper" submitted by Wucheng University of Arts and science has indeed successfully repaired the security loopholes.

No!

Just at the scene of the competition, the teams of 33 other colleges and universities were still seriously repairing the security loopholes, when the frightening voice sounded."Congratulations to Wucheng University of Arts and Sciences for successfully solving [problem D], which took 27 minutes and 30 seconds!"

The sound fell.

With a bang, behind Xu Bin, Chen Jun and Ouyang Chen, the red balloon marked "first-bomb-solved" was finally raised.

I don't know whether it's a special design or a coincidence. The balloon raised by Wucheng University of Arts and science after the first solution of [problem D] is actually red, which means it's the red of the East?

Maybe it's just a coincidence.

"Headmaster Ding, the red balloon, director Xu, they are wonderful. They are the first to solve this problem! How powerful

Wen Ruohan is already excited.

After all, this is the first time that Wucheng University of Arts and science has solved a problem, but Wen Ruohan doesn't know if 27 minutes and 30 seconds is fast.

In fact, Ding Yue doesn't know if it's fast. It depends on how long the second place can pass [Topic D].

All previous judges have broken the security record of 27 seconds, and only 30 minutes have been taken to fix the problem.

"Wucheng University of Arts and Sciences, are they so fast?"

A contestant from Haicheng Jiaotong University, a participating university in Xiaguo competition area, exclaimed.

"It's really fast enough. It's a bit BT, but don't waste time. Hurry to fix the security hole." Another contestant from Haicheng Jiaotong University said quickly.

As shocked as the competitors of Haicheng Jiaotong University, there are also many universities, such as St. Petersburg National University, Imperial University of technology, California Institute of technology, Moscow National University, etc. their competitors are all dumbfounded when they hear that Wucheng University of Arts and technology has completed the repair of security loopholes in 27 minutes and 30 seconds.

Some are silly, some are happy.

The happiest thing is Ding Yue.

"Hahaha, abin didn't disappoint me, so I started to take the first place." Ding Yue nodded contentedly.

At the same time, Ding Yue is also quietly calculating in his heart, how long does it take? How long can his time score of Wucheng University of Arts and Sciences accumulate and temporarily rank first?

At present, St. Petersburg State University, Moscow State University, Imperial University of technology, California Polytechnic University, Haicheng Jiaotong University and University of California, Berkeley are ranked in front of Wucheng University of Arts and Sciences in cumulative time.

There are six.

Among them, the time difference between Haicheng Jiaotong University and UC Berkeley and Wucheng University of Arts and Sciences is less than 30 seconds.

Now, 30 seconds have passed.

But these two universities still have not solved this security loophole problem.

This also means that the cumulative time score of Wucheng University of Arts and Sciences has surpassed that of Haicheng Jiaotong University and University of California, Berkeley.

The time gap between the former four universities and Wucheng University of Arts and Sciences is at least one minute, and even St. Petersburg National University is now more than five minutes away from Wucheng University of Arts and sciences because it has won the first place.

In the next four and a half minutes, Ding Yue's mood has been uneasy.

However.

Four and a half minutes passed quickly.

At this time, Ding Yue was surprised and confused.

What's going on?

How can other colleges and universities not solve this problem?

At this time, even if St. Petersburg National University passed [Topic D], the time score can not surpass Wucheng University of Arts and Sciences.

For the time being, the first one has been firmly grasped.

[live broadcast room of science and education channel of national TV station] -

"hahaha, we Wucheng University of Arts and sciences are awesome. Now it's time to rank first, right?"

"This is very powerful. It has solved the problem of security vulnerability repair so quickly."

"The first one?"

"What? Has Wucheng University of Arts and Sciences won the championship

"Well, don't talk nonsense. It's just that the score should be the first for the time being. It's hard to say how to win the championship. After all, there are still three questions behind. One is more difficult than the other."

The domestic audience has been boiling up.

To everyone's surprise, Wucheng University of Arts and Sciences has temporarily taken the lead. It seems that everyone underestimated the strength of this university before.

In fact, many people think that this time we go to Wucheng University of Arts and Sciences, we have the element of luck, and we just make soy sauce.

But from the first question to the fourth question now, we can see that the performance of Wucheng University of Arts and Sciences has been very good.

Until the fourth question was solved so quickly, it completely changed everyone's view on Wucheng University of Arts and Sciences.

Now, the strength of Wucheng University of Arts and science and Haicheng Jiaotong University among the three universities participating in the ACM competition has been recognized by the audience. Everyone thinks that these two universities have a chance to win the championship.As for the Northwest University of science and technology, it can only be said that there is a little gap in strength, but in the second echelon, the performance of Northwest University of science and technology has been quite good.

However, the Northwest University of science and technology in terms of the current time results, basically no chance to compete for the championship.

Unless in the seventh question, Northwest University of science and technology suddenly rises and solves the problem in super fast time, but it is almost impossible.

As we all know, the seventh question is hard to get to the top.

The time for solving the fourth question has passed for 35 minutes. Ding Yue takes a deep breath and thinks that it has been 35 minutes. Is there no other university to fix the security loophole?

This!

It's so cool!

Because the more time goes by, it means that Wucheng University of Arts and science has more advantages in this problem.

No!

Finally, after about a minute, there was a "Di".

Then the competition committee announced: "imperial Polytechnic University successfully passed [Topic D], which took 36 minutes and 49 seconds!"

No!

"St. Petersburg National University successfully passed [Topic D] in 37 minutes and 01 seconds!"

No!

"Caltech successfully passed [Topic D] in 37 minutes and 55 seconds!"

No!

"Haicheng Jiaotong University successfully passed [Topic D], which took 38 minutes and 44 seconds!"

Since imperial Polytechnic University successfully repaired the security loopholes, the top universities in the first echelon have been successfully completed.

The gap between us is not big, but compared with Wucheng University of Arts and science, the gap is big.

The time of this problem is nearly ten minutes short!

But St. Petersburg National University is a bit of a bull. It's less than 10 minutes short of this question, plus his advantage of the previous five minutes.

This means that the difference between St. Petersburg National University and Wucheng University of Arts and Sciences is about three or four minutes.

Ding Yue remembers this St. Petersburg National University, and is one of the biggest competitors of Wucheng University of Arts and Sciences on the way to win the championship.

Of course, in fact, Imperial College of technology, Haicheng Jiaotong University and California Institute of technology are powerful universities that can not be underestimated.

The fourth question made a great change in the performance.

Some colleges and universities, which were originally the first echelon, fell directly to the second echelon because of this security vulnerability repair problem.

Some colleges and universities in the second echelon, because it took more than 40 minutes to solve the security loopholes, are among the first echelon.

But the university teams at the end of the crane are basically the same, food or food.

Especially from Cape Town University in Africa, they failed [Topic D].

It seems that every question is very difficult for the three contestants of the University of Cape Town Team. I don't know how their alumni feel when they see the competition?

After the end of the fourth question, who has the chance to win the championship, who just comes to make soy sauce, all at once.

The fifth question, it seems, is not as difficult as imagined.

Moreover, the time for solving the fifth question given by the competition committee is only 20 minutes, which is the shortest time.

However!

The short time of the fifth question does not mean that it is not difficult.

It's because this problem doesn't need many procedures, but it's really difficult. Many second tier universities have racked their brains and still don't know how to solve this problem.

The top universities in the first echelon are still calm.

It seems that even the fifth question is hard for them.

With the perfect cooperation of Chen Jun and Ou Yangchen, Xu Bin used 11 minutes and 27 seconds to pass the test.

The time gap between the top two and Wucheng University of Arts and science is only one minute at most.

This means that although Wucheng University of Arts and Sciences is not the first one to solve the fifth question, the current cumulative time score of Wucheng University of Arts and sciences still ranks first temporarily.

"If this can be stabilized, it seems that we have a chance to win the championship!" Huang Youjie has a look at the cumulative time result after the end of the fifth question.

Wucheng University of Arts and technology ranked first, St. Petersburg State University second, Imperial University of Technology Third, California Institute of technology fourth, Moscow State University fifth, Haicheng Jiaotong University Sixth, Nanyang University of technology seventh, University of California Berkeley eighth, Federal Institute of Technology Zurich ninth, Stanford University tenth.

In a word, Stanford University is a super famous world-class university in Eagle sauce country. It is also among the top in the global rankings, sometimes in the top three.

But!

In the ACM competition, Stanford University's performance is not very good, it may be that their team three strength compared with the previous several universities, there is still a certain gap.At present, it seems that the top ten universities are the most popular to win the championship.

Ding Yue is looking forward to, as Lao Huang said, as long as his Wucheng University of Arts and Sciences is stable, will the champion be available soon?

But the sixth and seventh questions are coming soon. It's really a big question mark whether they can be stable.

If you can win the championship, you can make a big splash, at least in the computer major.

If you can't win the championship, even if you shine in the fourth question, it's useless, because in the end, people only focus on the champion.

"Hoo."

Ding Yuechang vomited a foul breath, and then said to Lao Huang, "I hope they can hold on. Of course, it would be better if they could make another achievement like the fourth question."

"Yes

Just as Ding Yue and Huang Youjie were chatting, the competition committee announced the beginning of the sixth question.

The difficulty of [question F] is directly full. It takes one hour to answer the question. Of course, it is the time set by the competition committee.

That is to say, the problem [problem F] must be solved within one hour. Otherwise, the problem will not be passed. If it is not passed, the result will not be obtained.

For those college teams who have the chance to compete for the championship, if they can't get the result, they will go straight to GG.

The sixth question is more difficult than many colleges and universities expected.

"This... This is almost impossible!"

"It's too hard!"

"An hour? I'm not sure I'll be able to do it in a day's time! "

"Mike, get going!"

"Hurry up, hurry up and have a try!"

Many well-known university students, after seeing the sixth question, are a little frustrated.

In fact, even Xu Bin frowned.

Chen Jun and Ouyang Chen are also anxious.

"Director Xu, I'm afraid this problem can't be solved by me and Ouyang Chen." Chen Jun said to Director Xu seriously.

"I know, but it doesn't matter. Let's try to solve this problem together. You can provide ideas as much as possible."

Although Xu Bin did not frown.

Because he knows that he must be calm at this time. Once he is in a mess, he may not be able to solve this problem in an hour.

It's said that three cobblers are the best.

What's more, Xu Bin, Chen Jun and Ou Yangchen are not cobblers, but gifted college students majoring in computer science.

If three people work together, maybe it will really work.

Xu Bin is a computer major, because he has a great hobby and good ability. In addition, during his more than one year in Wucheng University of Arts and Sciences, he also studied buff bonus and various plug-ins provided by Ding Yue.

In the face of ACM competition, Xu Bin is not absolutely sure, but he is not so confident.

However, unlike Xu Bin, the students from other universities are somewhat depressed.

They don't have too much pressure to solve the first five problems, but at most the fourth problem takes more time.

But this sixth question, some students have even begun to some frustration.

"I don't think we can solve this program in an hour at all!" Said Wilke of the University of California, Berkeley, with a sigh.

"Hey, Wilke, we need to be confident!" Said Wilke's teammates encouragingly.

"But...

it can be seen that even the team at UC Berkeley is on the verge of collapse.

This is one of the top ten universities!

It can be imagined that other colleges and universities, and even the second echelon of colleges and universities team in the face of the sixth question, is how desperate.

At this time, mentality is very important.

Xu Bin, Chen Jun and Ou Yangchen of Wucheng University of Arts and science systematically analyzed this [Topic g].

Finally, Xu Bin has an idea.

"You see, can you try to solve it like this?" While operating, Xu Bin asked Chen Jun and Ouyang Chen.

After a serious look, they were not sure, but they both nodded and said in unison: "director Xu, I think we can have a try!"

"Good!"

Xu Bin took a deep breath, thought of the good brother headmaster Ding Yue's expectations for himself, then gritted his teeth and began to try to solve [problem g].

Even if this method doesn't work, Xu Bin thinks that there should still be opportunities to change the solution.

But this method has to be tried.

On the side of the competition committee, at 31 minutes, it received the "answer paper" submitted by Imperial University of technology.However!

The result of the panel is - wa!

The answer is wrong!

According to the rules of ACM competition, if the program submitted within the specified time does not work correctly, the program will be returned to the participating team, and the participating team can modify it and submit the question again.

In other words, all the participating universities have the opportunity to consciously try and make mistakes.

It's obvious that imperial college is gambling that the program they submitted for the first time can pass.

Once it can be passed, it is estimated that it can lead by a large margin.

Because this problem, we all feel that if we can solve it, it will take at least 50 minutes to go up.

No!

"Imperial College submitted wrong answer!"

The competition committee returned the procedure of Imperial University of technology, and the three competitors of Imperial University of technology were directly confused.

"It's over."

"There are twenty minutes left. Let's try scheme B?"

"That's the only way. Hurry up."

After the three people were depressed, they quickly adjusted the state. If scheme a runs wrong, then only scheme B can be executed.

Like Imperial Polytechnic University, Moscow State University also chooses AB and AB for trial and error.

Almost exactly the same, after the Moscow State University's a plan was submitted, it was rated as wa by the panel of judges!

Then they returned it to Moscow State University, and they immediately began to carry out plan B.

However, time is very limited, and scheme B may not have a chance to be fully realized.

In fact, Xu Bin of Wucheng University of Arts and Sciences has implemented the same method as Imperial University of technology and Moscow State University.

That is to try first, if wrong, try another plan.

But when Xu Bin wrote the program, he found that there seems to be no problem with this idea. With the help of Chen Jun and Ou Yangchen, Xu Bin just wants to perfect the current answer method as soon as possible!

"Brother Yue, several colleges and universities have submitted the procedures, but they are all wrong. Is this a trial and error? But how did I find out that abin didn't mean to prepare for trial and error? "

Huang Youjie sees the difference and asks Ding Yue curiously.

"The best way to solve this problem is to try and make mistakes. If a bin doesn't allow them to use this alternative method, it can only explain one problem."

Ding Yue said, a smile suddenly appeared at the corner of his mouth.

"What's the problem?" Huang can't wait to ask.

"That's abin. They are confident that they can solve [problem g] directly at one time!"

In the 30 minutes to 45 minutes of problem-solving time, colleges and universities constantly submitted their answers, but the judges' replies were all wrong!

In other words, they are basically wrong in trying to make mistakes in a short time.

As a result, many colleges and universities have almost given up this problem.

Because there are still 20 or more minutes left, it is almost impossible to run the second program perfectly.

Of course, there are also some powerful university teams with confidence, such as Imperial University of technology and Haicheng Jiaotong University.

53 minutes.

After typing the last line of code, Xu Bin looks at Chen Jun and Ouyang Chen.

They nodded together.

Once this is submitted, it's ok if it's passed. If it's not passed, it's a bit miserable, and it may even lose the chance to compete for the championship.

After all, if the program fails to run, there will still be seven minutes left. It will be too late to change another way.

Xu Bin see two eyes firm, his heart is also a horizontal!

Submit!

About half a minute passed.

No!

"Congratulations to Wucheng University of Arts and Sciences for successfully solving [problem g], which took 53 minutes!"

Bang!

With the purple balloon rising from behind Xu Bin, Chen Jun and Ou Yangchen, the first university to solve the sixth problem was born.

Wucheng University of Arts and science!

The audience even applauded.

Because it has been 53 minutes, and finally the first university successfully solved [problem g].

So this problem is really difficult.

Among more than 30 universities, at least 10 have given up.

There are still about 10 universities participating in the team feel too late.

Some of the rest are missed one time, in the second time, and some are like Wucheng University of Arts and Sciences.

No!

"Caltech successfully passed [Topic g] in 55 minutes and 09 seconds!"In fifty-five minutes, Caltech solved this difficult problem.

In the next five minutes, Imperial University of technology submitted its second answer and passed it. Haicheng Jiaotong University passed it in 58 minutes.

St. Petersburg National University passed in 59 minutes.

Answer paper submitted by Moscow State University - wrong!

Now it's OK. Moscow State University is cool. I didn't get a grade on the sixth question.

Nanyang Polytechnic University passed [Topic F] on the time line.

The sixth question directly kicked the other universities out of the championship competition.

In other words, the champion can only be born from Wucheng University of Arts and technology, Imperial University of technology, St. Petersburg National University, Haicheng Jiaotong University, California Institute of technology and Nanyang University of technology.

And Nanyang University of technology because of the accumulated time before the performance is relatively poor, so want to fight for the championship is not generally difficult.

At this moment, Ding Yue's heart has been mentioned to the throat.

The last question will decide the winner!

The competition committee announced the seventh question!

The difficulty of the seventh question, other university teams after meeting, are not interested in solving the problem.

Because this is more difficult than question 6.

If this program can be completed, I'm afraid it's no problem to be the chief engineer of computer program in any computer company in the world?

The expressions on the faces of the three contestants of Haicheng Jiaotong University after seeing question 7.

"Gan! This... Although it took one and a half hours, how could it be completed? "

"NIMA, give me a month, I may not be able to solve it."

"This year's ACM competition topic, too BT?"

The three young men were a little desperate.

After a while, one of them calmed down and said, "maybe there is another shortcut to solve this program. Otherwise, how can the competition committee let us spend an hour and a half to solve the program that can only be solved by a team for a month?"

"It makes sense!"

At Wucheng University of Arts and science, Xu Bin, Chen Jun and Ouyang Chen are analyzing this problem.

[Title g] it's really hard.

After Ouyang Chen saw it, he was going to be silly.

Chen Jun is a little better. He can barely analyze it.

Xu Bin has been frowning, because he also felt that this topic seems unlikely to complete.

But when you think about it, it shouldn't be.

How can the competition committee come up with a problem that almost everyone can't finish?

"Yes!"

At this moment, the idea of genius is always different from others.

"Director Xu, do you have an idea?" Chen Jun widened his eyes and asked Xu Bin.

Right now.

On the side of St. Petersburg National University, the three players are calm.

The three competitors from Imperial College of technology are in a heated discussion.

These players are known as geniuses. Instead of participating in ACM competition, they can easily go to any top computer company in the world by virtue of their achievements in school.

Even among them, there are some experts in the hacker circle.

For example, one of the competitors from Imperial College of technology is a global hacker expert, code named "Mediterranean".

The match was quiet for a long time.

Because problem seven takes as long as an hour and a half to solve.

In the first hour, none of the teams submitted their answers.

An hour and twenty minutes.

Still not!

One hour and twenty-two minutes later, there was movement on the field!

No!

"Congratulations..."

when Ding Yue heard the word "Congratulations", his pupils immediately tightened.

Because he knew that the University team that solved the seventh question was born, and the champion was likely to be born!