After the contestants of the eight teams were seated, the host who presided over the competition picked up the microphone and began to introduce the rules.

"This mathematics competition is divided into team competition and individual competition. However, regardless of whether it is a team or an individual, the results will be included in the overall individual score according to a certain percentage. ”

"In other words, even if you are teammates now, there will only be one winner in the end."

When the host said this, the audience began to discuss.

This kind of game system is very cruel, even teammates will become opponents in the end.

The host looked at the contestants and continued to introduce the competition system: "In order to test everyone's mental agility, this year's team competition no longer uses written tests, but adopts the rush answer mode, and it is forbidden to use paper and pencil calculations, and mental arithmetic must be performed. ”

"20 points will be added for each correct answer, and 10 points will be deducted for incorrect answers. I can only press the answering machine after I finish answering the question, and if you rush to answer in violation of the rules, you will lose the opportunity to answer the question. ”

In addition, the organizing committee of this event also prepared a "surprise" for the students. At the end of the competition is a high-score super question, if you want to get a high score, the big question is a must-answer question, so please prepare mentally in advance. ”

Speaking of this, the host deliberately paused and said with a smile: "Because this competition is the first time to use this mode, the specific rules will not be announced until the super big question appears!" ”

"That's the rules of the game, please be quiet, now the game begins!"

After announcing the rules, the host said unhurriedly:

"Now comes the first question."

"Nobita has 100 dorayaki at hand, and he's going to take the dorayaki home to Doraemon. Nobita can hold 50 dorayaki every time, but every 100 meters he walks, he has to eat one to replenish his strength, and now he is still 5000 meters away from home, excuse me, how many dorayaki can Nobita bring Doraemon at most? ”

With his voice, the content of this question also appeared on the big screen behind the host, which was specially prepared by the organizing committee for the audience to watch the game clearly and intuitively. The content of the question, whether the contestant's answer is correct, and the score of each team will be displayed on it.

After finishing the question, the host paused for more than ten seconds, and then said loudly: "Start answering!" ”

"Ding!"

As soon as the host's voice fell, the bell rang for the answer.

"Congratulations to Tsingshan University, you got the opportunity to answer the question, what is your answer?"

And Kuroda Shin's hand was still on the answering device at this time, and he looked at An Zeliang and Hoshinomiya Rin, as if he was showing off his success in answering the answer.

An Ze complained silently in his conscience: "I have a girlfriend whose hand speed is still so fast, what do you usually do." ”

Kuroda Shin retracted his eyes and replied confidently, "The maximum number of dorayaki that Nobita can take home is 16!" ”

After hearing the answer, Hoshiko Hayano in the audience changed her face slightly and thought about it.

"That's the wrong answer, isn't it? Walk 100 meters to eat one dorayaki, and you can only take 50 at a time. It's equivalent to taking 50 dorayaki and eating it when he walks home, so he shouldn't have taken any of them back. ”

Teacher Ichiya next to him asked with a smile: "But after he goes home, he has to go back to get dorayaki, so won't there be nothing to eat in the 5,000 meters he goes back?" ”

Hoshiko Hayano thought about it and clapped her hands.

"That's right, so this back and forth, Nobita still owes 50 dorayaki, what should I do, I can't borrow it from Doraemon, right?"

"Haha, Mr. Hayano teaches English, so it's normal to think so, but there is another way, which is to take 50 and walk 100 meters home, and then go back and take the remaining 50 and walk 100 meters home."

Hoshiko Hayano frowned and calculated in her heart.

"What's the difference about this, it's 100 meters closer to home, and I ate 3 dorayaki, and the method consumption is the same as what I said."

Mr. Ichitani replied, "At first, it was the same, but when I walked 1,700 meters to my home, I consumed a total of 51 dorayaki and left 49. Nobita can take up to 50 dorayaki, so he can take those 49 dorayaki to cover the remaining 3,300 meters at once. ”

Hearing this, Hoshiko's eyes lit up.

"Then he will need to eat 33 dorayaki for the rest of the journey, and there will be 16 left when he gets home!"

Ichiya-sensei nodded, "That's right, so Kuroda-san's answer is correct." ”

"The world of mathematics is really interesting." Hoshiko Hayano said this, but she was thinking in her heart: Anzawa's game skills are so good, does it have a lot to do with his good math scores?

After all, there's nothing harder than math.

While the two were talking, Tsingshan University had already taken the lead in adding 20 points and temporarily ranked first.

Immediately afterwards, the host kept reading out the questions, and the competition gradually became intense.

During the competition, Kuroda was very active, sometimes frowning, thinking about the correct answer to the question, and sometimes quickly pressing the answering machine to fight for the opportunity to answer.

At the same time, An Zeliang and Rin Hoshinomiya, who were sitting next to them, were ...... Idle......

Because of last night, there was some embarrassment between them, otherwise they would have interacted at this time.

Moreover, for the current An Zeliang, those topics are just children's tricks. Since Kuroda is so positive, give him a chance to perform, fish with peace of mind, and wait to see the final big question.

And Rin Hoshinomiya was also pondering.

Only, she meditated on something else.

The temperature and good smell on An Zeliang's body, who was sitting next to her, kept coming, which made her suddenly remember that after returning to her room that day, she seemed to smell a similar smell on herself......

Was it really that I was harmed at that time, or was it because I was in bed with him that I was contaminated with his smell?

But who took my clothes off?

At this time, she didn't have the energy to think about the topic at all, but kept thinking about what happened last night, and worried about whether she would get pregnant, and didn't even realize that as time passed, the competition was only the last super big question.

At this time, the host held the microphone and said excitedly:

"Ladies and gentlemen, the regular questions have ended, and now there are only super questions left!"

With his words, the atmosphere at the scene suddenly became tense, after all, even the rules of the super big question are still unknown.

Prior to this, Kuroda had been performing well, scoring 390 points, and Aoyama University was ranked third.

However, the most eye-catching person in the game is not him, but Saori Tsukishima, who is called a genius girl. She was the only one in her team who was answering the questions, but the score had reached 500 points, ranking first.

At the same time, the three players from the High School Affiliated to Tokyo University all performed well, ranking second with 440 points.

The host looked at the score on the field and said:

"Now the maximum score of the eight participating teams is 500 points, and the lowest score is 260 points, which seems to be a big difference. But that's okay, because we still have super big questions! ”

"Everybody, look at the big screen!"

With his words, a super question stem appeared on the screen.

[Given the integer N>1. There are two cable car companies A and B on a mountain with N squares of different heights, each operating k cable cars, each running from one station to a higher station (with no stops in between).

The k gondolas of company A have different starting points and k end points, and the cable car with a higher starting point has a higher end point, and the cable car of company B also meets the same conditions.

We call two stations connected by a certain company, if it is possible to reach the higher station from the lower station through one or more of the company's cable cars (no other movement between stations is allowed in between).

Find the smallest positive integer k so that there must be two stations connected by two companies at the same time. 】

As soon as this question came out, the audience was in an uproar.

Many of the spectators were math teachers from various universities who came to inspect the competition, and they immediately noticed that the difficulty of this problem was far greater than that of the previous one!

For high school students, this question is too difficult.

As an English teacher, Hoshiko Hayano looked at the reactions of the people around her, and there was only a blank look on her face.

"Mr. Ichiya-sensei, is this question difficult? I don't think everyone's faces look good. ”

Mr. Ichiya frowned and replied, "This question, even if it is placed in the International Mathematical Olympiad, is very difficult." If I can't do it with pen and paper, I'm not sure I'll be able to do it quickly. ”

At this time, the host said unhurriedly: "Everyone has seen the question, and now I will announce the rules of this question." ”

"The last question is also a rush to answer the question, and it cannot be calculated with pen and paper. However, the score for this question is 200 points! If you answer correctly, you will add 200 points, and if you answer incorrectly, you will also deduct 200 points! If no team answers for more than 15 minutes, the question will be cancelled and the team competition will be over! ”

He didn't care that showing the question first might give the contestants more time to solve the problem, or that the organizing committee didn't care. Because the organizing committee has done thorough research before coming up with the question, the conclusion is that no one can make the correct answer within the scope of the rules.

Of course, it would be better if someone could make it.

This is the only way to show strength!

Eighth place is 240 points away from first place, but only 180 points away from second place. In other words, this question may turn the eighth place into the second place! If the team from another place answers the question correctly, it will instantly become the first place!

The genius boy from the High School Attached to Tokyo University immediately stood up: "Teacher, such a question is unfair!" Such a high score will directly change the outcome of the game, so what is the point of our previous efforts? ”

The host motioned for the other party to sit down, and then said with a smile: "Students, this is exactly the intention of the organizing committee, like you, the High School Affiliated to Tokyo University, you can give up the opportunity to answer this question, so that even if other teams answer correctly, the worst is the third place." At the same time, it is an opportunity for the backward teams to challenge for a high position. ”

"At the same time, I would like to remind you once again that the scores in both the team and individual competitions are counted in proportion to the individual overall results. If the score in the team competition is too low, no matter how high the score in the individual competition is, the final result may not be satisfactory. ”

"Do you choose to give it a go and hit for a better position, or do you want to win steadily and keep the current results?"

"Students, please think carefully! The timer begins! ”

With the host's words, the contestants who were still talking about it just now fell silent. He's right, the choice is in your own hands.

Hayano Hoshiko in the audience said angrily: "What's the matter, 200 points, isn't this a joke, I finally got the third place, if any of the five teams below answers correctly, wouldn't we have to settle for the fourth!" ”

Mr. Ichiya, who was sitting next to him, said, "High risk and high reward, or low risk and low return, this is forcing students to make a choice, after all, game theory is also a part of mathematics." This time, the questioner is not simple, although it is only one question, but it has been assessed twice! ”

As he spoke, Mr. Ichiya took out the pen and paper he had with him: "15 minutes, the time is really tight, even I am nervous." I'll see if I can get it right! ”

In addition to Mr. Ichitani, there were many people around who took out pen and paper and calculated. After all, many of the people present are math teachers or math enthusiasts, and they don't want to let go of such a challenge.

However, the players on the stage were not so convenient, they were forbidden to use pen and paper, and could only do mental arithmetic constantly.

Under the pressure of huge scores and time, both on and off the stage became very quiet.

Saori Tsukishima's eyes were slightly closed, and she used the index finger of her right hand to draw quickly in the palm of her left hand, as if she was calculating.

Her teammates said unwillingly: "Is there really no way, although we are already in first place, in case other teams ......"

But math problems, if you can't do it, you really can't, and even if you look at it many times, you can't suddenly open your mind.

All hopes are pinned on Tsukishima-san!

On the other side, Kuroda Kokokoro's forehead was already bursting with fine beads of sweat.

He was also calculating quickly, but he was getting more and more desperate, and after a few minutes of thinking, he didn't even find a suitable solution to the problem.

The current ranking is 3rd place, 390 points, if you answer correctly, it will become 590 points, but if you are wrong, it will become 190 points......

Such a choice is really head-scratching......

Kuroda Shin looked at An Zeliang and Rin Hoshimiya, who were completely out of state on the side, and said:

"You two also want to think of a way, why am I the only one working hard, have you ever thought about fighting for the honor of the school. Even if it's not for school, think about yourself! If you can play some role to win the second place just now, then the worst result can also keep the third place, and now you don't have to bother! ”

"Anze, weren't you very good at the exam before, why haven't you answered a single question now! Really! If only you were killed by a scumbag killer, it wouldn't be so useless to change someone else! ”

The scumbag killer is already a well-known urban weird talk in Aoyama High School, because of this legend, Kuroda Kokoro has had many nightmares before, although he is not a scumbag, but he is also afraid. Now he was too anxious, so he said unabashedly that he hoped that An Zeliang would be killed by a scumbag killer.

But the four words of scumbag killer made An Zeliang turn his head slightly and look at Kuroda Xin.

During the game just now, An Zeliang saw that Kuroda's heart was so positive, so he was lazy and kept observing the audience on the field. He finally determined that the quality of the girls in this parallel world was much higher than that of the previous life.

Looking at An Zeliang's expression, Kuroda said dissatisfiedly:

"I mean, you're not still hungover, are you? Did you drink again yesterday? ”

"Obviously, the competition has been started for so long, and the two of you haven't answered a single question, and the three hundred points are all obtained by me alone, so what kind of competition are you going to participate in?"

Immediately after, bursts of complaints erupted from Kuroda's mouth, and An Zeliang felt that what he said made sense.

Although he doesn't like Kuroda Kokoro, he is not wrong about these words.

It's not right for people.

So An Zeliang looked at the big screen, read the question again, made sure that it was the same as his own calculation, and then took the answering machine and pressed it.

"Ding!" The sound of the answering machine sounded.

"What are you doing!" Kuroda was shocked on the side, he was in such a hurry to answer the question, is this going to kill me!

The host looked at An Zeliang and said in surprise: "Is there actually a team to answer?" Please answer the questions from Qingshan University! ”

An Zeliang took the microphone and said unhurriedly: "k is equal to the square of N minus N plus 1." ”

"Ahh Mr. Ichitani, who heard An Zeliang's answer, said with annoyance: "It should be the square of N plus N minus 1." ”

Hayano Hoshiko, who was on the side, suddenly raised his throat: "Ah, in that case, wouldn't our team just become 190 points?" ”

Teacher Ichiya hurriedly waved his hand and said, "Not necessarily, not necessarily, I was in a hurry, maybe it was me who was wrong." ”

Although he said so, it was actually just to comfort Hoshiko Hayano. After all, he has been paying attention to his players during the game, and An Zeliang simply looked at the screen for a while and said the result, how could it be right!

Even mental arithmetic can't be so fast! No way!

And Kuroda Shin on the stage looked at An Zeliang, who had already said the answer, and suddenly felt a chill in his heart.

"It's over! It's over! This guy must be playing tricks! He deliberately made me lose! ”

Kuroda said with a look of indignation: "Are you crazy! I finally got those 390 points, and now it's because of you to become the last one! Anze! You're such a ......."

Before he finished speaking, Kuroda Kokore's ears heard the host's voice: "Answer correctly, congratulations to Aoyama High School, add 200 points!" ”

"What a ...... It's a ...... Talented! ”

Kuroda wanted to say that An Zeliang was a madman, but the host's voice made him suddenly blind.

He stood up in disbelief and turned to look at the host: "Excuse me, you're kidding, aren't you?" How can this casual answer be right? ”

At this time, the answer to the question also appeared on the big screen, and it was exactly the same as what An Zeliang said.

The host had a shock in his eyes, "This classmate, your team has added 200 points, aren't you still happy?" Now you're the first place in the team competition! ”

"This classmate named An Ze is a genius! How can you mentally calculate such a problem so quickly...... No, this is certainly not calculated so quickly, maybe it is a problem that I have done often in the past to solve it so skillfully. ”

The moderator is also incredible.

Kuroda couldn't say a word, why, why couldn't he find the idea of disintegration after thinking and meditating hard, and An Zeliang just gave the correct answer after a while?

Didn't he come to make up for it?

Isn't he here to hold me back?

Kuroda was puzzled and sat down weakly.

At the same time, all the genius students sitting opposite also stopped their calculations and looked at them in surprise.

How could he be so fast?

It's only been a few minutes......

"This guy ...... It's kind of interesting, it's a fierce rival. ”

Saori Tsukishima looked at An Zeliang with an eager expression.

During the competition just now, she was also paying attention to the players of the other teams, except for her and her teammates, seven teams, twenty-one people, she had carefully observed.

What impressed her the most was the daze duo of Aoyama High School, An Zeliang and Hoshinomiya Rin, just like the two mascots on the stage, who have never participated in the competition.

I thought they were not good at strength, but it seems that they are hiding their clumsiness.

Interesting.

Hoshiko Hayano in the audience looked at the big screen, Aoyama High School ranked first with a score of 590, and she said happily: "Teacher Ichiya, Mr. Yasuawa's answer is correct!" ”

Mr. Ichiya also nodded excitedly: "Yes, I miscalculated." This kid, I thought he was not in shape in this competition, but I didn't expect to answer the super big question correctly! Such a young man with a good brain and good physical fitness, I really don't know what kind of girl can match him. ”

Hoshiko Hayano didn't know what to think, and her face turned slightly red.

Is he worthy of him, there are already people present who have already him......

The team competition came to a dramatic end, and after a short lunch and break, the individual competition was about to begin.

Twenty-four contestants from eight teams sat in the same exam room, and the test papers had been placed on the table in advance, covered with pure white scratch paper, so that the contestants could not see the questions.

"Ringing ringing!"

As the bell rings, the individual competition officially begins. Everyone picked up their pens and began to do their calculations at a rapid pace.

The main invigilator stood on the podium, and the four inspectors were patrolling back and forth in the examination room.

The one-year learning experience of the elite version has made An Zeliang's knowledge level completely different from that of other students.

The competition problem in front of him is similar to adding and subtracting before the awakening system.

The only problem that bothered him now was that although he already knew the answer at the first glance of the question, his hand speed was not enough...... After all, not everyone has the opportunity to exercise their right hand constantly.

The pen in An Zeliang's hand rubbed against the scroll, constantly making a "rustling ......" sound.

Kuroda Shin, who was sitting diagonally behind him, couldn't help but be stunned, and now he was still immersed in the shock that Azawa brought to himself in the morning team competition.

He even forgot to continue writing his own volume, but looked at An Zeliang's back: "Why, why can he be so fast?" How did he know the answer in the morning, I had been calculating super big questions during my lunch break and didn't get the right result, why did he look at it and figure it out? ”

At this time, an inspection teacher walked up to him, frowned and knocked on Kuroda's desk: "Classmate, please concentrate on making your own papers." ”

Kuroda took his eyes off An Zeliang at this time, but he was never able to concentrate.

An Zeliang quickly finished writing the paper, and then looked up at the wall clock on the wall, twenty minutes had passed since the start of the exam.

Examine? Inexistent.

An Zeliang raised his hand: "Teacher, I have finished answering, can I submit the paper in advance?" ”

The main invigilator was stunned for a moment, then nodded.

"Yes."

The search before the competition was very strict, and all the signals were blocked inside the exam, plus five teachers invigilated the exam, even if there were students who went out early, there was no chance to help others cheat, so the rules allowed to leave early.

An Zeliang packed up his things, put the papers on the podium, and left the examination room to find his teacher.

"In the past, there have been cases where players scribbled a bunch of papers on the paper and then handed in the paper in half an hour because of their poor level, and this time it is the same." The main invigilator thought as he picked up An Zeliang's test paper.

He was a professor in the Department of Mathematics at the University of Tokyo, but he didn't know what the question was until he saw Ahn Zeliang's exam paper.

Followed by.

As he reviewed An Zeliang's test paper, the main invigilator's expression became more and more surprised, and he leaned down and began to carefully observe the contents of the paper.

It's not scribbling, but a serious answer?

The solution ideas for each question are very efficient and concise, and the steps are clear and clear. And many of the solutions are only available in college or even graduate school.

So what is the answer...... Even a math professor can't be sure for a moment whether the answers to these questions are right or wrong.

He couldn't help it, he took out the pen and paper in his hand and began to calculate.

That's right! That's right! Or right!

The main invigilator looked at the other contestants who were struggling to write, and walked to the office of the organizing committee with An Zeliang's papers.

Soon, the main invigilator returned to the examination room, and then he said loudly: "Everyone, An Zeliang from Qingshan University has already got a full score, and he has the earliest time to submit the papers, and after the teacher's inspection, all the full scores, so it has been determined that he is the first place in the individual competition, and everyone will come on after that!" ”

Just now he handed over An Zeliang's paper to the organizing committee of the event, and after reviewing it again, it was finally determined that An Zeliang's paper was indeed a full score.

He discussed with the organizing committee and decided to announce An Zeliang's results.

After all, the contestants who can participate are all mathematically talented, and the organizing committee also wants to see how these contestants will perform in the face of sudden pressure.

Hearing the words of the main invigilator, Kuroda Shin's hands trembled, and the sweat on his forehead began to bubble up continuously, and the whole person seemed to have fallen into a nightmare named An Zeliang, and the already difficult to concentrate spirit became even more flustered.

And Saori Tsukishima clenched the pen in her hand that was answering the question, could it be that the super question of the team competition, the other party was not blinded, but calculated?

Thinking of this, she couldn't help but look at the door, thinking about the figure for a few more seconds in her mind.

(End of chapter)