Pollutant recycling site

Before becoming a full-time investigator, Luo Nan of the Miyue team was an elementary school Chinese teacher. Although she didn't teach mathematics, she probably knew what elementary school mathematics mainly taught. In her spare time, she also listened to the mathematics teacher talk about the elementary school Olympiad.

Whether it was the arithmetic sequence mentioned at the beginning of the test, or the placement of the divine fruit, she vaguely saw the shadow of the primary school Olympiad.Seeing that the teammates around her didn't respond, Luo Nan poked Chang Minghao who was closest to her: "Captain, this seems to be an elementary school Mathematical Olympiad problem."

"It's the elementary school Olympiad. It seems to be called a third-order magic square. I have seen similar ones in the exercise books of relatives' children. He can't do it, so I borrowed my mobile phone to search for the method..." Chang Minghao desperately recalled , and said while thinking, "But I can't remember how to do it."

The question about the total number of Shenguo is very simple. Almost after listening to the question, most investigators know that this is an arithmetic sequence question with the first item being 1, the tolerance being 1, and the number of items being 9, and the Shenguo is also calculated. The total number is 45, and the number of divine fruits placed on the nine plates is exactly the nine natural numbers from 1 to 9.

The sum of the total is 45. Since the sum of each row and column is the same, it means that the three numbers in each row and column add up to 15.

So here comes the question, how to put the 1 numbers from 9 to 9 into the Jiugong, so that the sum of the three numbers in each row and column is 15?

Almost most investigators are stuck at this step.

“8、1、6,3、5、7,4、9、2……”周魇冷声说出了九个数字,“九个数字是按照这个顺序填在九个格子里的。”

After hearing this, Ning Luan understood: "Team Zhou, I know that 5 is in the middle, but there are four corners of the square, which one is 8?"

"That's right." Chang Minghao said puzzledly, "We all encountered similar questions when doing papers. By default, the top row is the first row, and the leftmost number on the first row is 8, but this... ...It doesn't seem like that's the case, right?"

In order to calculate the answer, the investigators and the young and middle-aged men in red robes are standing sparsely around the edge of the nine-square grid. If you judge according to the practice of the test paper, the farthest from you is the first row, how many first rows are there?Only one of the many first lines is correct, how should we choose?

If the position of each person is ignored and the direction of the Jiugongge that everyone sees first is used as a reference, they worry that the test of the temple will not be so simple, and there is some mystery hidden in the question.

For a while, the corner of the square where the number 8 should be placed has become a question that almost all investigators are thinking about.

Song Yu glanced at the situation of the red-robed youth, walked up to Zhou Yan, and asked in a low voice, "Captain Zhou, the only thing we can be sure of is that the middle grid is the number 5. Do we need to go there first and occupy 5?"

Zhou Yan raised his hand and turned the silver watch on his left wrist, and said coldly: "No need, the twelve of us, only by finding 100% correct answers can we ensure that everyone survives the test."

"it is good."

Song Yu was relieved by Zhou Yan's answer.

In Song Yu's perception, even if the people in the mission didn't miss living people like them, it would be unethical to do such a thing, but in order to save the lives of more investigators, he could only ask Zhou Yan for his opinion with the cheek .

Unexpectedly, when Song Yu looked up again, he saw that the grid represented by the number 5 was occupied by five young and middle-aged men in red robes, and Lijie was not among them.

Liu Chi, a member of the Dreaming Everything Team, came over, and Captain Song Yu of Xiaoshengxiang explained the situation of the young man in the red robe: "They seem to have heard the answer announced by Captain Zhou, and also heard our discussion."

Song Yu glanced at the five people who were sitting quietly in the middle grid with their backs to the pillars, and forgot about Yan Zhou who was standing upright: "Leave them alone, Captain Zhou won't allow us to occupy a seat, there must be a way to solve this matter."

"I know it's not good to doubt Captain Zhou like this, but..." Liu Qi hesitated, "What if he doesn't know the correct positions of other numbers?"

Song Yu thought for a while, and said seriously: "To be honest, I don't think there will be such an event."

"Zhou Yan, have you figured out where to stand?" Lu Chenzhao walked up to Zhou Yan under the eyes of everyone, "The time is almost up, if you really can't figure it out, I suggest you seek help from seniors."

The investigators onlookers were very excited.

Could it be that the boss is going down to the earth to teach Captain Zhou how to solve this kind of problem, and by the way give them advice?

What everyone didn't expect was that Zhou Yan didn't answer the senior where he was standing, and didn't ask the senior for help. Instead, he asked a question that sounded like he was asking for clues at first glance, but after careful analysis, he knew that it had nothing to do with the clues.

Zhou Yan: "Where do you want to stand?"

Lu Chenzhao pointed at the edge of the row closest to him: "I think this place is very good."

Zhou Yan took two steps forward, stood outside the middle grid of that row, turned his head and glanced at Lu Chenzhao: "This position is better."

"It's very good." Lu Chenzhao nodded in agreement, "But it's a pity, it's only suitable for you, not me."

Zhou Yan stepped into the grid and stood firmly: "I am standing where the number 1 is. My left hand side is 8, and my right hand side is 6. You can choose your position in this order."

Wen Bing was a little confused: "Captain Zhou, how did you determine this?"

Zhou Yan recalled how Xia Lu Shenzhao usually lied to others, and said seriously: "It's a bit complicated to explain clearly, let's talk about it later when we have time."

Wen Bing believed it, nodded at Zhou Yan, and went to discuss with others how to stand.

In fact, there is no need to be sure, and there is no need to be sure.

Zhou Yan has no memory of the evil god, and only part of his heart and right hand belong to the evil god. He can feel that the former evil god has little or no relationship with him.

But no matter what, Zhou Yan could not deny the fact that from a certain point of view, he was the evil god himself.

And the black box happened to be an item that once belonged to the evil god.

It was almost destined that Zhou Yan would not die before reaching the step of resurrecting the evil god in the process of performing this task.He is not dead, but the people around him are not necessarily.

So as long as Zhou Yan stands alone in the grid corresponding to the number 1, and does not stand with others, then whichever row he stands in the middle of the edge, that row is the row corresponding to the numbers 8, 1, and 6.

There are four correct answers. Zhou Yan just asked Lu Chenzhao where he wanted to stand, but he just wanted to choose an answer that Lu Chenzhao liked.

Lu Chenzhao knew the reason why Zhou Yan asked, so he chose a position he liked, and let Zhou Yan know that he understood by thinking that the middle position was more suitable for Zhou Yan's statement.

The position chosen by Lu Chenzhao is the grid corresponding to the number 8.

Zhou Yan stood alone under the stone pillar, turned his head and watched Lu Chenzhao lazily walked to the front of the grid and stood still, watching other investigators scrambling to stand behind him, refusing to run too far if he didn't grab it , and the rest of the people stood in the grid corresponding to the number 8 behind the number 3.

8, 1, 3.

There were exactly twelve people who came to the recovery site to carry out the task. So far, Zhou Yan has given an explanation to all the people who came here with him, and it is also the first explanation.

"Zhou Yan, don't look at me like this, you can only stand one person over there..." Lu Chenzhao only spoke the first half of the sentence, and he told Zhou Yan through his lips, "If you look at me like this again , I can’t help but go over and stand with you.”

Zhou Yan looked at Lu Chenzhao quietly, opened his mouth, but did not make any sound: "Maybe I should stand at number 2 with you."

Lu Chenzhao put his hands into his coat pockets, resisting the urge to rush over and pull Zhou Yan into his arms.He originally wanted to say that it was still too late to change positions, but when he heard a familiar voice in the air, he changed his words again: "It's a pity, it's too late... Next time, I'll try with you."

The childish voice who gave them the question sounded: "Are you sure this is the correct answer? Unfortunately, the time is coming soon, and even if you want to change your choice now, it will be too late."

"Clap--"

Accompanied by two crisp clapping sounds.

The stone pillar standing in the middle of the grid moved slowly underground. Even though the trembling sound from the stone pillar was very weak, the investigators still heard the sound of the plate shaking on the top of the stone pillar.

Gently, gently...

The small sound can remind people of its existence, but it will not make Zhou Yan and others worry that it will fall at any time.

"The number on our plate must be 8?"

"Although I know our choice is probably right, I'm still very nervous."

"It's 8, it's 8, it must be 8, don't let me see other number balls."

……

The investigators in the next grid were discussing nervously around the stone pillar. Zhou Yan looked down at the edge of the stone pillar, quietly waiting for the moment when the top of the stone pillar appeared in front of his eyes. As long as there was only one divine fruit on the plate in front of him, everyone It's safe.

"It's 1."

Hearing the voice of the senior investigator, the investigators who were discussing were all frightened.

"How did 1 come out!?"

"Impossible, this position is impossible to be 1."

"Why, senior? If it's 1, why do you want us to stand with you? We can't finish playing together?"

……

"Your number must be 1."

It wasn't until they saw the senior turn his head and heard him say it again to Zhou Yan in the next grid, that these investigators realized that when the stone pillar was about to appear in front of their eyes, when they were worried about their own safety, only the senior Instead of worrying about himself, he was worried about Captain Zhou standing next door alone.

Song Yu pressed his chest and sighed sincerely: "As expected of the strongest investigator in the legend of the recycling yard, when life and death are at stake, he is not worried about himself, but others."

After Song Yu's conclusion, the eyes of other investigators looking at senior became more the same.

And the strongest investigator in the legend of the recovery site, Lu Chenzhao himself, did not notice the changes in the people around him at all. From the time the stone pillar started to shake, until the stone pillar stopped in front of everyone, his gaze, his gaze, always stayed on Zhou Yan. On a person, he didn't move away for half a second.

It is 1.

When the stone pillar statue moved down to about the same height as Zhou Yan, he saw that there was only one divine fruit on the plate.

It's just that the shape and style of the so-called divine fruit are a bit strange, except that the color is colorful, it is exactly the same as the dice in the real world.

For a six-sided cube, Zhou Yan can only have five numbers from 1 to 5. If there is no accident, the number displayed on the side that is in contact with the bottom of the plate should be 6.

"The divine fruit must be distributed at the same time." Li Jie reminded the people around him loudly, "When the pillar moves to the chest position of most people, I will count down to three two one, and everyone will take the divine fruit together."

Ning Luan stood in the grid corresponding to the number 3 and asked Zhou Yan: "Captain Zhou, what should we do?"

"The rule is that all believers take the divine fruit together, and we act together with them." He was the only one in Zhou Yan's position, and there were few people in Ning Luan's side. Zhou Yan looked at the grid where Lu Chenzhao and others were, and reminded them, "When the stone pillar is about to move to the position, choose which one each person will take in advance, and don't repeat it."

For several grids with a large number of people, we really need to pay attention to this kind of problem.

Lijie told the young and middle-aged men in red robes Zhou Yan's reminder to the investigators, focusing on the people in the numbers 7 and 9.

Finally, the stone pillar moved to the agreed position.

"Three, two, one."

At the moment when the countdown ended, everyone had a divine fruit in their hands, and they successfully passed the first test.

The so-called divine fruit is indeed a colored six-sided cube dice, and the numbers marked on the dice are the same as Zhou Yan expected, six numbers from 1 to 6.

The young and middle-aged men in red robes looked down at the colored dice in their palms, all lowered their eyes and did not speak, while the investigators had already opened their mouths to discuss.

Bai Mi from the two tiger squads said: "The name is Shenguo, I thought it was something to eat, the kind that would become a god after eating."

Team leader Lin Luoxin complained: "If you really have that kind of magic fruit, you wouldn't dare to eat it. What if you become a shoe god?"

The shoe god is the evil god.

The two of them were worried that they would get into trouble if they mentioned the evil god during the mission, so they gave the evil god an easy-to-understand another name.

Lu Chenzhao shook the dice in his hand, threw it into the air, then reached out to catch it, and so on.Whenever he looks at the dice in the air, Lu Chenzhao's eyes will drift to the side to look at Zhou Yan, and he will never tire of it: "It doesn't matter what it is, the important thing is that it is bestowed on you by the so-called gods, and it can be given to you as a mission reward." In hand, it is probably useful."

"The divine fruit is in your hands. Congratulations on passing the entry test. Now, please retreat to the grid corresponding to the number two."

The grid corresponding to the number 2 and the grid corresponding to the number 8 are on the same diagonal line. The investigators walk along the diagonal to the middle grid corresponding to the number 5, and then go to the grid corresponding to the number 2 which is farther away. grid to go.

As they moved forward, each grid became much larger than at the beginning. The grid corresponding to the number 2 could not accommodate 45 people at all. When Zhou Yan and others walked over, the grid size became at least 100 people. many people.

When all 45 people stood in the grid corresponding to the number two, a childish voice sounded in the air again: "Please wait a moment, the second test will begin soon."

The moment the words were finished, the stone pillars in the grid that were half buried in the soil were completely submerged into the soil and disappeared. A red, foul-smelling liquid seeped from the red line on the edge of the grid and expanded rapidly outward.

The disappearance of the stone pillars and torches made everything around them fall into the darkness of eternal night again, until the intersection of all the red lines lights up the torches that can only illuminate the red lines below, and the people standing in place can use the faint light spots one by one, Guess what's going on at a distance.

Zhou Yan's eyesight is the best among all. After confirming the number of intersection points on the edge of their ranks, he told the investigators his findings: "The nine-square grid under our feet, which is the third-order magic square, has just passed The change becomes a fifth-order magic square."

Ning Luan: "...Does the second test still have to take mathematics?"

"It would be great to continue to take the math test." Luo Nan couldn't help but sigh, "When I was just moving, I remembered that my colleague who taught mathematics told me that as long as you master the law of the third-order magic square, most odd-number order The magic square can be filled out in a very short time, Captain Zhou can fill in the third-order magic square, and the fifth-order magic square must be easy for him."

"Do you think..." Wen Bing looked down at the dice in his hand again, and after glancing at the situation in the distance, he said to everyone, "These grids and dice look like a game together?"

"What game?" Speaking of the game, Bai Mi from the two tiger teams became interested, "There are many games with grids and dice, which one do you think it is like?"

"I'm going to start introducing the rules of the second test, please be quiet." The immature child's voice is in the air, "Before the introduction, let me introduce myself first. If you enter the second round, you are eligible to know my name .My name is Li He, and I am solely responsible for all matters related to the temple test. You are not qualified to call my name, so even if you have something to say to me, you don’t need to call my name, as long as your words point to the target It's me, I can hear it."

"The first test is just a simple group screening, and the second round of tests is for teams and individuals."

"For this reason, we have prepared dozens of tests, and randomly stuffed them into the 23 grids below. You stand on the spot and throw the divine fruit in your hand. When you throw it, you will move forward a few grids to complete the task of that grid. Corresponding test."

"Those who pass the test stay in that grid and continue throwing the fruit, and go to the next grid according to the numbers. Just like the first test, those who fail the test will be greeted with something more terrifying than death."

"Because each test has different requirements for the number of people, when the number of people in the grid does not meet the minimum requirements, the test corresponding to the current grid will not be triggered. The believers staying in that grid need to wait in place until the number of people reaches the test requirements, triggering the test until."

"In order to avoid too many people participating in the test, the temple stipulates that only the person who throws the magic fruit and throws six points can get the chance to start. Stacks with six points."

"Supplementary regulations, no one knows what test is waiting for them before arriving at the grid and accepting the test. In order to avoid anyone leaking the content of the test, whenever someone completes the test corresponding to a certain grid, the task corresponding to the grid will be in the next replacements upon arrival."

"So what kind of game is this?" Bai Mi from the two tiger teams looked at the dice in his hand and complained, "At first I thought I was playing Monopoly, but he told me it was a blind box mission. What kind of test I encounter depends on my face. After I accepted that I was playing blind box, he told me that it was flying chess. My hands are so dark, if I can’t throw six all the time, do I have to stay here? For a lifetime?"

Since some of Bai Mi's words were directed at Li He, what Bai Mi said just now was heard by Li He, and Li He also responded.

"This is not a game, it is a test for you by the temple, it is a test for you by God."

"If you can't throw six points for [-] consecutive throws, you will be directly judged to have failed the second round of the test, and the consequences will be the same as other people who have not passed the test."

Bai Mi: "..."

Shouldn't she be glad that she's not the kind of African chief who can't throw six points two hundred times?

Li He said again: "Start throwing the magic fruit from the person at the front."

The young men in red robes headed by Li Jie were in the front row. After Li He finished speaking, a white washbasin-sized vessel appeared in front of Li Jie.

Lijie threw it casually and got five points, so he was not eligible to start.

Li He reminded him aloud: "Those who don't throw a six will be the last ones in the line."

Lijie left, and the red-robed young man behind him then threw the fruit into the container, and the points he threw were four.

I don't know if it's the bad luck of the red-robed youths, or there is a problem with the divine fruit given by the temple. From the first to No. 40, none of the red-robed youths threw six points.

Among the investigators, Zhou Yan was at the top of the list.

Zhou Yan raised his hand and threw it, and the Shenguo spun quickly in the vessel, finally stopping at six o'clock, and he got the chance to start.

Li He said: "Congratulations on getting the qualification to start, please throw the magic fruit again immediately."

Zhou Yan threw it again, this time, the Shenguo turned faster than last time, and finally displayed four points.

Li He: "Please go to the fourth grid."

Zhou Yan turned around and glanced at the investigator behind him, his eyes fell on Lu Chenzhao, and he turned and walked towards the fourth grid.

The moment Zhou Yan stepped on the fourth grid, he disappeared in front of everyone, leaving only a red number 1 at the lower right of the corresponding grid.

"Because the number of people did not meet the test requirements, he did not trigger the test corresponding to the grid. Please continue to throw the magic fruit."

Lu Chenzhao walked forward. Like Zhou Yan, he threw six points and four points respectively, went to the fourth grid, and disappeared.

So far, the test corresponding to the fourth frame has not been triggered yet.

When everyone finished throwing the fruit, only six of the 45 people got the chance to start by throwing six points. They were all investigators of the recycling yard, and all of them threw four points after six points and went to the fourth grid .

Strangely, the test corresponding to the fourth grid has not been triggered yet.

It was Ning's turn to throw the magic fruit again.

"Six o'clock six o'clock..."

Ning Luan yelled casually, closed his eyes and threw it, and actually threw six o'clock, which made Bai Mi who was standing behind him jealous.

Li He reminded Ning Luan to continue throwing.

Ning Luan held the Shenguo tightly in his hand, feeling more nervous than before throwing the six o'clock.

Bai Mi poked him: "There's nothing to be afraid of, throw it quickly, as long as you throw four points, you can go to Captain Zhou and others."

Ning Luan muttered in a low voice: "You don't understand, I'm so nervous because I'm afraid of throwing four points."

Bai Mi didn't understand: "Why? Your captain is so European, the first to throw a six."

"It's because he's too European that I'm scared."

Ning resigned himself to his fate and threw the magic fruit at the four o'clock in the container, wanting to cry and laugh at the same time.

"I was afraid that he would throw it away casually, so I chose the most difficult of all the tests."

The author has something to say:

Riwan succeeded!Weeping with joy.

There will be no updates on Monday, and the content will be fine-tuned to catch bugs. I am not sure if there will be any on Tuesday.

There are 50 small red envelopes in the front row as usual, thank you for your support and kindness.