Start with a fake university

Europe, Zurich, Switzerland, at two o'clock in the afternoon.

The ACM International College Student Program Design Competition officially kicked off at the Central Stadium in Zurich. The competition is sponsored by a world-renowned computer research institution and sponsored by a world-renowned computer brand.

It is the most influential competition in the field of computer science for college students.

Numerous talented researchers in the computer field have participated in the ACM International College Student Program Design Competition.

Even the vice president of a world-renowned computer brand that sponsored the ACM International College Student Program Design Competition has participated in the ACM competition.

In the 1990s and after the 21st century, the ACM International College Student Program Design Competition was sponsored, so the scale of the competition continued to expand, and the number of participating universities increased from dozens of universities to hundreds or even more. Thousands.

Of course, after these thousands of colleges and universities sign up to participate in the ACM International College Student Programming Competition, they will conduct certain screenings in their competition areas.

The colleges and universities that can finally make it to the stage of the global finals are also the top batch of the big wave.

Ding Yue briefly looked at the list of entries in this year's finals——

Imperial College

University of Chicago

California Institute of Technology

UC Berkeley

Nanyang Technological University

Haicheng Jiaotong University

Moscow State University

ETH Zurich

Saint Petersburg State University

University of Melbourne

Looking at it, which one is not a world-renowned university?

Moreover, the computer professional strength of these universities is very strong, whether it is from the teaching ability or the scientific research ability.

Of course.

Ding Yue's Department of Computer Science, Wucheng University of Arts and Sciences can participate in the finals of the ACM competition with this world-renowned university.

This shows that Wucheng University of Arts and Sciences has the opportunity to become the world's first-class level in the field of computer science.

It depends on whether Xu Bin, Chen Jun and Ouyang Chen can work hard.

If you become famous in the ACM competition, the computer major of Wucheng University of Arts and Sciences will become a major choice for many domestic students who love the computer field. When enrolling students in September next year, I am afraid that the number of computer majors will skyrocket.

It's just that Ding Yue still doesn't know whether Xu Bin and the others can break a bloody way out of this battle without gunsmoke.

After all, Ding Yue has added all the BUFFs that should be added to Xu Bin and Chen Jun's professional field so far.

Even if it's a temporary hold on to the Buddha's feet, it is useless.

So Ding Yue quietly waited for the performance of Xu Bin, Chen Jun and Ouyang Chen in the game.

Ding Yue also took a look at the competition rules of the ACM International College Student Programming Competition.

Each team in each university will use 1 computer and need to use one of CC++, Java, Python and other languages ​​to solve 7 to 13 problems within 5 hours of the total schedule.

After the procedures of the participating teams in various universities are completed, they will be submitted to the referee to run. The results of the operation will be judged as correct or incorrect and the team will be notified in time. What is interesting is that after each team has completed a question correctly, the organizer will rise in its position A balloon representing the color of the question, the first team to solve it for each question will also get an additional "FIRST-PROBLEM-SOLVED" balloon.

The final winner, that is, the championship is the team with the most correct answers and the least total time.

During the competition, each test question will take time from the start of the contest until the answer to the test question is judged to be correct, during which a penalty of 20 minutes will be imposed for each submission of the running result and an error.

Within 5 hours of the competition, there are generally 7 or more test questions, which are completed by three players from the same team using the same computer. When a test question is solved, it is submitted to the judges, and the judges judge whether it is correct .

If the submitted program does not run correctly, the program will be returned to the team, and the team can make changes and submit the question again.

There are generally 7 types of program judgment results-

1. Accepted-Passed!(AC)

2. WrongAnswer-the answer is wrong.(WA)

3. RuntimeError——that is, program operation error, unexpected termination, etc.(RE)

4. TimeLimitExceeded.——that is, timeout.The program did not give an answer within the specified time.(TLE)

5. PresentationError——that is, the format is wrong.The program did not output the answer in the prescribed format.(PE)

6, MemoryLimitExceeded-namely super memory.The program did not give an answer in the prescribed space.(MLE)

7. CompileError——Compile error.The program does not compile.(CE)

In general, the ACM International College Student Programming Competition is to allow the team members of the participating teams of various universities to work together in the fastest time to solve the problems of the competition committee through computer programs.

For this international college student computer field competition, there are also live broadcasts in China, and it is also broadcasted by National Television Station.

It's just a live broadcast on the science and education channel.

As we all know, China National Television generally only has a few channels such as News Channel, Channel One, and Variety Show that have relatively large traffic.

The number of viewers of the Science and Education Channel is limited.

It was two o'clock in the afternoon in Switzerland, and in Xia Guo, it was already around nine o'clock in the evening.

The Science and Education Channel of National TV Station broadcasted ACM by satellite. Although the picture synchronization is slower, it can let domestic audiences see this game.

"Xiao Zhang, have you noticed, this year's ACM competition, the number of spectators seems to be tens of thousands more than before."

After viewing the background data, the staff of the Science and Education Channel of National TV Station who was in charge of the broadcast of the ACM competition couldn't help but tell his colleague Xiao Zhang.

"is it?"

Xiao Zhang was quite surprised when he heard it.

In each previous ACM competition, the number of spectators was basically fixed, with a maximum of 5,000 people fluctuating.

But just now my colleague said that there were tens of thousands of viewers suddenly added this year?

So Xiao Zhang went to check the audience watching data of the ACM competition live broadcast on the Science and Education Channel of National TV Station.

It really looks like more than 20,000 and nearly 30,000.

You know, if you want to watch the live broadcast of the ACM competition, you can only watch it on the science and education channel of the official website of China National TV. After all, only the science and education channel of the National TV station will broadcast the ACM competition.

Therefore, it is very simple for the National Television Station to want to count the audience data.

It's just that Xiao Zhang and the others don't know at all, where did the extra 20,000 or 30,000 viewers come from?

You can’t always have a fixed number of viewers in previous years. This year, suddenly there will be more audiences, right?

At this time, Wucheng University of Arts and Sciences is thousands of miles away.

Many students are viewers of the National Television Station Xiao Zhang who do not know where they are.

The students of Wucheng University of Arts and Sciences know that around nine o'clock this evening is the start time of the ACM International College Student Programming Competition.

Although President Ding and Director Xu were far away in Europe and Switzerland, the students of Wucheng University of Arts and Sciences organized spontaneously to watch the live broadcast of this event.

Only the Science and Education Channel of National TV Station will conduct the live broadcast of this ACM competition. Therefore, everyone swarmed to the Science and Education Channel of the official website of National TV Station tonight.

Although the ACM International College Student Program Design Competition has little attention outside the college computer professional circle.

But for every student of Wucheng University of Arts and Sciences, this is an event worthy of their attention, not just computer students.

Because in this event, if his alma mater Wucheng University of Arts and Sciences can get a good result, the social status of Wucheng University of Arts and Sciences will obviously be improved.

The most important thing is that every student of Wucheng University of Arts and Sciences has a very warm sense of honor and disgrace. The honor of the school is also very important to the students.

Who made this the second home for the students?

In the Zurich Central Stadium, all teams from a total of 34 universities around the world have been in place.

Ding Yue, Huang Youjie, and secretary Wen Ruohan were in the rest area of ​​Xia Guo’s participating colleges, watching the game.

In the arena, there are 34 universities, each of which has three teams.

Because the rules of the competition are three members at most, then every college will definitely choose three players. After all, if there are more people, it will naturally be more efficient to solve the procedure.

"Chen Jun, you are responsible for the analysis of each topic, Ouyang Chen, you are responsible for assisting Chen Jun to provide all the help he needs, and then I am responsible for writing the program!"

Xu Bin made an accurate division of labor for this game.

Because the ACM competition is more efficient, whoever solves the problem faster will be able to get closer to the championship.

Each team will only provide one computer for answering questions.

If this is the case, Xu Bin will assign it, and he will control the computer to write the program to answer the questions, and Chen Jun and Ouyang Chen can concentrate their energy on analyzing each question.

In 5 hours, at least 7 questions or more must be answered, and the team with the least time will win.

So teamwork among the three people and efficient division of labor are very important for this competition.

"Good Director Xu, I will use the most concise way to parse out the questions, and strive to enable you to answer the questions better."

Chen Jun nodded and replied seriously.

Ouyang Chen also nodded, even though the work he did was the most "simple", he would not relax in the slightest.

Because Ouyang Chen is very clear that he is an indispensable part of the team, and he must do his best to assist Chen Jun in the analysis of the problem in order to make the team achieve the best results.

As for the whole team, Xu Bin’s work is obviously the most difficult, because after Chen Jun and Ouyang Chen analyzed the questions, Xu Bin needs to write a program to answer the questions.

Of course, in the process of answering questions, if there are any difficulties, Chen Jun and Ouyang Chen will also play important roles in Xu Bin's think tank.

In fact, most of the team assignments of participating universities are basically based on Xu Bin's model.

The subtleties may be different, but the division of labor must be clear.

Xu Bin will not underestimate his opponents, because they are all from the world's top computer professional universities.

It is not an exaggeration to say that the total of 102 players from the 34 participating teams at the scene are all computer geniuses!

This is indeed the case!

Live Room of Science and Education Channel of National TV Station——

"I saw our Xia Guo's college team, Haicheng Jiaotong University."

"Haicheng Jiaotong University has won the championship in the ACM competition, and more than once, he is our biggest favorite in Xia Guo."

"This year there are still Moscow State University and St. Petersburg State University. These two universities seem to be very strong in recent years."

"Indeed, in the past few years, Moscow State University and St. Petersburg State University have basically won the championship, but think about it, the team they used to compete in has already graduated? The new team can still take the championship. To defend the title?"

"Hahaha, I saw our Northwestern University of Science and Technology!"

"To be honest, this year's Wucheng University of Arts and Sciences is indeed quite surprising, and it can actually get a place for the competition."

"Students from Wucheng University of Arts and Sciences are here to report, come on!"

"I heard that Xu Bin from Wucheng University of Arts and Sciences is particularly good. He has been worshipped by many gods in the domestic computer circle."

"Really? Is it so powerful?"

"Everyone who has been in the computer circle should know that Xu Bin has an ID called "A Bin", which is called by the computer gods-the day does not give birth to me A Bin, the computer is like a long night!"

"So hanging?"

"I am ignorant."

"As far as I know, this Abin family seems to be able to write a super awesome operating system."

"Similar to Apple? The plague is dead? An operating system like Android? Really or fake, so exaggerated."

"It's just a rumor. No one has seen A Bin's own operating system. Who can't brag about it."

"So, is there really something about the participating teams of Wucheng University of Arts and Sciences?"

"Let's wait and see, are there anyone staying up late to watch the game tonight?"

"Tomorrow Saturday, I will definitely finish watching the game. It's only about two o'clock after watching it. The nightlife will officially start."

"666, can you all stay up all night like this?"

At this time, Xu Bin obviously didn't know that he was being discussed by netizens watching the game in China.

His energy was used in the game.

The ACM Competition Committee quickly determined that all 34 college teams were ready.

Then began to give the first question.

That is [Question A].

The questions of the ACM competition will be given one by one in the form of ABCDEFG, and then all participating teams will start to answer the questions.

The difficulty of the problem, obviously starting from A, will become increasingly difficult!

After the first question was given, all the team members of the 34 colleges and universities participating teams immediately entered the state.

It is worthy of being a group of top computer science college students from all over the world.

"Chen Jun, start to analyze the topic."

"Ok!"

Chen Jun began to analyze [Topic A], and the method of analysis was also the most convenient way for communication between him and Director Xu.

The purpose is to enable Xu Bin to start writing problem-solving programs based on the analysis of the problem more efficiently.

In other words, Xu Bin and the others can start to answer the questions while analyzing the questions. This efficiency is not comparable to that of the average team!