Longevity begins with slaying demons and eliminating demons

Chapter 246 Gu Xu's Association (Two in One)

But Gu Xu quickly ruled out this idea.

On the one hand, the IQ of the characters created by the technique of "touching the soul" is really limited.

The mind of this boy in black is probably equivalent to that of a mortal child in his tenth year - at this moment, under the guidance of Zhao Xinran, he is flipping through the documents while scribbling on white paper; He would miscalculate a few numbers, and Zhao Xinran pointed it out sternly.

"As expected of arithmetic, even a piece of paper will give you a headache." Seeing this scene, Gu Xu couldn't help complaining in his heart.

According to the National Teacher, the time it takes for each person to calculate the result will become an important reference indicator.

If he wants to stand out among the candidates, he must find a better solution that can solve the problem in a shorter time.

…………

Mo Li lay on the table thinking hard.

He picked up the pen, recalled his notes, and wrote down the names of the talismans one after another on the paper——"Liujia Yinyang Talisman", "Shrinking Land Talisman", "Flying Talisman", "Lucky Auspicious Talisman" ...

But he really couldn't think of any one of these talismans that could help him solve the current problem.

"I really don't understand why the National Teacher proposed such an assessment content." Mo Li scratched his head and thought distractedly, "Estimating the expenses of the Luoshui Conference is the responsibility of the officials of the Ministry of Finance. Why do we need us?" These practitioners do it?"

At first, under the influence of anxiety, Mo Li felt that this was the national teacher's preference for Gu Xu—because Gu Xu was good at improving talisman seals, the national teacher specially set up such a link to help Gu Xu become the final winner .

But then he thought that the national teacher has always been recognized as a decent person by Luojing officials. Not only is he impartial and non-partisan, he does not promote oil and salt, but he even contradicted the emperor face to face when he was young-he will never hide his respect for outstanding talents. Appreciate it, but he will never abuse his power to change the rules for his own gain.

It is obviously an incorrect idea to question the ethics of the national teacher because he can't solve the problem in front of him.

Mo Li sighed.

Under such circumstances, he could only silently admit that his knowledge of talismans and seals was still a little less after all.

Such unorthodox talismans that don't exist in orthodox books like "Enhancing Eyes"... If he had known something before, he wouldn't be as helpless as he is now.

…………

Shen Qiu also stared at the white paper in front of him, helpless.

During the period just now, he tried to use the spell of "turning talisman paper into real objects", drawing a complex rune on white paper, turning it into an abacus, and fiddled with the beads on the abacus , while recording the calculation results.

But the national teacher soon appeared in front of him and stopped his move.

The national teacher believes that this is a kind of clever behavior.

After all, the abacus is just a tool.

In the final analysis, he still uses his own brain.

So Shen Qiu sighed.

He looked at the boy in black who was lying on the floor and snapped his fingers, and then at Gu Xu who was scribbling beside him, feeling more and more anxious.

Only Mo Li, who was sitting at the desk with a sad face like him, could give him some psychological comfort.

…………

Gu Xu lowered his head, thinking while making a draft on the paper.

"Luoshui Conference... Expenditure... Calculation... Talisman and seal art... Quick..." The key words buzzed one after another, like countless bees flying past his ears.

The memories of the two worlds were intertwined and gathered into countless thoughts, creating a storm in his mind.

He first thought that if he had a computer in front of him, he could write a piece of code or use an Excel spreadsheet to easily solve this problem.

However, it is obviously unrealistic to build a computer from scratch.

After hundreds of years of development and evolution, computers in the previous life already possessed extremely complex structures and functions.

Gu Xu was just an ordinary college student before time travel, and it was impossible to fully understand the principle, let alone use the talismans of this world to realize it.

Most of the talismans in this world are used for fighting, exorcising ghosts, or warding off evil spirits.Even if there are a few functional talismans, such as "Feng Xing Talisman" and "Cold Avoidance Talisman", the purpose is very single.

But Gu Xu thought about it again, he didn't need to build a computer with complicated functions today.

No need to display pictures, no need to play sound, no need to connect to the Internet, no need to store videos...

Only the simplest digital calculation function is needed, and it will be fine.

Even only addition and subtraction are needed-after all, continuous and repeated calculation addition is the common way for modern computers to do multiplication and division.

The first thing Gu Xu thought of was the Pascal Adder.

The father of the French mathematician Pascal was a tax collector.Because Pascal had witnessed his father struggling to calculate tax rates and taxes when he was a child, he wanted to do something for his father.

The "Pascal Adder" is a device composed of a series of gears. It looks like a rectangular box. It needs to be turned with a key to tighten the mainspring. It can only do addition and subtraction.

In order to solve the carry problem of "every ten to one" in addition, Pascal adopted a small claw-type ratchet device.When the positioning gear turns towards 9, the pawl gradually rises; once the gear turns to 0, the pawl falls down with a "click", pushing the ten-digit gear forward by one gear.

But Gu Xu thought for a moment, and felt that it was not an easy task to use the talisman seals of this world to present decimal numbers.

So he thought of another mathematician in his previous life, Leibniz from Germany.

According to legend, one day in the [-]th century, a friend of Leibniz gave him a "Yi Tu", also known as "Bagua Tu".When looking at the eight diagrams, Leibniz found that each hexagram image is composed of two symbols of "Yin" and "Yang". He got inspiration from it and firstly proposed the algorithm of binary calculation.

Gu Xu didn't know if the rumor was true or not.

However, the moment he thought of this, it was as if a flash of lightning flashed across the dark night sky, and rumbling thunder broke the deathly silence.

He sat up straight suddenly, his eyes lit up.

"I see!" he thought to himself.

He knew that the reason why the computer in the previous life used the binary counting method was because it was composed of a logic circuit, and there were usually only two states in the circuit, the on and off of the switch. "Zero" means.

And in this world, all formations related to gossip are also based on Yin and Yang.

Yin Yao is represented by two short lines ("--"); Yang Yao is represented by one long line ("—").

They can be used instead of the numbers "zero" and "one".

After the two appearances, there are four images——

The two yin lines are "Taiyin", the upper yang and lower yin are "Shaoyang", the upper yin and lower yang are "Shaoyin", and the two yang lines are "Taiyang".

Can be used to replace "00", "01", "10" and "11" in binary numbers.

After that, the four images give birth to gossip, the gossip transforms all things, and all things become the world...

Gu Xu is not only well versed in the art of spells, but also has a deep understanding of gossip deduction.

He felt that he could use Yin-Yang Bagua to design a set of symbols that could be used for addition and subtraction calculations.

Thinking of this, he grabbed the slender Langhao pen on the table, dipped it in ink, and quickly drew one rune after another on the paper.

…………

outside the house.

The big shots are still waiting quietly in the gazebo surrounded by grass and trees.

Academy professor Fu Tao, as one of the deputy examiners, naturally has an understanding of the examination questions put forward by the National Teacher.

After being silent for a long time, he finally couldn't restrain his curiosity, and couldn't help asking the national teacher: "Master national teacher, why do you want to put such a test on the candidates?

"We use talismans on weekdays to drive away ghosts and defeat the enemy. Things like calculating the expenses of the 'Luoshui Conference' are done by the officials of the Ministry of Households—"

"—This is just a small attempt," the national teacher smiled and interrupted him, "My master Chi Yangzi once put forward a point of view before his death that the art of talisman seals can not only be applied to practitioners In the battle of the people - if they are developed properly, they may also be extended to the people to improve the daily life of the people.

"Decades ago, Master tried to carve a set of talisman arrays on the 'Quyuan Li', so that it could automatically plow the fields, break up soil clods, and plow grooves without the use of manpower and livestock. Ditch. With such a device, farming will become easier for farmers.

"However, it has some obvious limitations - it requires practitioners to pour a large amount of true energy into the array regularly to maintain normal operation.

"It's a pity that Master passed away early, and he couldn't fully put his ideas into practice.

"And I'm blunt in nature, and I don't have the bold imagination of the master; although my junior brother He Yiqun is smarter than me, he is a carefree person who pursues pleasure, and has no interest in such things at all.

"So, I can only pin my hope on the descendants of the Great Qi Dynasty—maybe among them, there is a person with both talent and ambition who can stand up and inherit the unfinished business of Master."

Fu Tao stopped talking.

In the cognition of Fu Tao and most of the monks of the Daqi Dynasty, practitioners and mortals have their own duties. The former is responsible for killing demons and demons, and is the sword that protects the country; the latter is the backbone of the country, maintaining the country. daily operation.

The two do not interfere with the water of the river.

Chiyangzi doesn't use spells to kill ghosts, but thinks about how to use spells to cultivate the land, which seems a bit irresponsible to Fu Tao.

However, the moment she heard the words of the national teacher, Princess Zhaoning who was standing next to her suddenly straightened her waist and her eyes lit up.

Fu Tao has been waiting in Longmen Academy for a long time. He has no worries about food and clothing, and doesn't care about world affairs. Naturally, he doesn't understand the current national conditions of the Daqi Dynasty.

But Princess Zhaoning is different.

As the person in charge of the secular power of the Daqi Dynasty, she knew that many places in the country actually lacked food resources, and also knew that many places suffered from ghosts and ghosts, resulting in deaths and injuries, and no one cultivated the fields.

The food collected by the national treasury is getting less and less every year, but Princess Zhaoning can't think of a good solution.

Coupled with the falling of the long night, the ghosts and monsters in the whole Great Wilderness will become stronger and more terrifying...

Princess Zhaoning has always been very worried about whether the Daqi Dynasty can survive this catastrophe smoothly.

But today, the words of Grand Master Da Qi gave her a new way of thinking.

She felt that she might try to use the power of practitioners to solve the problems of secular people's livelihood.

"It's just...will there be practitioners willing to help me with these things?" Thinking of this, Princess Zhaoning couldn't help but frown again.

On the surface, she seems to have a high position and authority, replacing the emperor in holding the supreme power of "approving red".

But in fact, she is just a tool for handling government affairs - all her power comes from the emperor, and she has no power of her own.

If she wants to issue orders to mortal courtiers, she must rely on the name of Emperor Tianxing, let alone order practitioners with aloof positions.

"Maybe, I have to find a chance to chat with the national teacher in the future?" She thought silently.

…………

Inside the "Siqi Hall".

Shen Qiu quietly turned his head and glanced at Gu Xu who was sitting beside him.

Half an hour later, Gu Xu had already drawn a very complicated formation on the paper, which was covered with densely packed "Yin Lines" and "Yang Lines".

From Shen Qiu's point of view, the appearance of this talisman array is very, very ugly, not only asymmetrical, but also the lines connecting the various hexagrams are messy, like a mess.

It is different from all formations that Shen Qiu has seen before.

As Gu Xu injected real energy into the formation, these lines shone with colorful light, making people dazzled.

"What is he doing?" Shen Qiu frowned slightly.

However, Shen Qiu didn't spend too much time thinking about Gu Xu's thoughts.

Because he also found his own way of thinking.

As a wealthy family, the Jinling Shen family owns many properties under their name.In recent years, as the younger generation in the family grew up, they gradually took over the responsibility of the elders and assumed the responsibility of governing these industries.

Of course, an unpopular bastard like Shen Qiu is not worthy of running the family business independently; more often, he is the personal assistant of his direct brother Shen Hua—hiding behind the scenes to advise Shen Hua on weekdays; when Shen Hua When you go out to visit the brothel, go to help him talk about business.

His inspiration came from Gu Xu's array map on paper, and also from the "counting chips" that accountants would use before the abacus was widely popularized.

"Suanchou" is a series of small sticks of the same length and thickness, generally 270 to [-] centimeters in length, mostly made of bamboo, about [-] sticks in a bunch, and put in a cloth bag.When you need to count, just take them out and put them on the table, on the kang or on the ground.

According to the rules of counting, the representation method of counting chips is as follows: use vertical format for ones digit, horizontal format for tens digit, vertical format for hundreds digit, horizontal format for thousands digit, vertical format for tens of thousands digit, etc. From right to left, alternate vertically and horizontally, and so on, any large natural number can be expressed.

"Although I don't understand Mr. Gu's formation, I can probably guess that he used the idea of ​​'breaking the whole into parts' and 'making the complex into simple'," Shen Qiu thought to himself, "after all, we Can read every tiny component of his formation - but when they are connected together, I can't understand.

"Perhaps, I can try to use a similar idea, using horizontal and vertical strokes to simulate counting chips, to represent each number in the document. Then learn from the principle of the illusion magic circle, follow the rules of calculation, and let these strokes follow specific rules, automatically change.

"In this way, I only need to record the final pattern of the formation to get the result."

Thinking of this, Shen Qiu was ecstatic, thinking "I'm really a genius"; at the same time, he grabbed the writing brush on the table and began to quickly draw the formation.

Now, he is already half an hour behind Gu Xu and Zhao Xinran in terms of progress.

If you don't hurry up, you will definitely be left behind.

…………

After another half hour, Gu Xu suddenly stood up from his seat.

The array diagram he drew shined brightly on the table.

Everyone's eyes fell on him—whether it was Shen Qiu who was writing furiously, Mo Li who was sitting in a daze on a chair, or Zhao Xinran who was earnestly teaching the boy in black to do arithmetic, all of them couldn't help opening their eyes. eyes.

"This person...wouldn't have figured out the result so quickly, would he?"

An incredible idea popped up in their minds.

At this moment, Zhao Xinran said that the progress was not over half, and Shen Qiu had just started to draw a draft on paper.

Gu Xu's move made their thoughts stop for a moment.

In the next second, Grand Master Qi suddenly appeared beside Gu Xu, confirming their guess.

"Have you figured out the result?" The national teacher looked at Gu Xu with a smile.

Gu Xu nodded, and pointed to the formation diagram on the table: "Please take a look at the national teacher."

The brilliant light intertwined and changed on the paper, and then gathered into a number, which was presented in front of the national teacher.

The national teacher knew that this was the correct answer.

However, even with his experience as a talisman master, he still couldn't fully understand the operation principle of Gu Xu's formation.

He really couldn't understand why Gu Xu was able to calculate the expenses of the "Luoshui Conference" based on a series of yin and yang hexagrams.

"Is it convenient to go out and explain to me its principle?" The national teacher nodded slightly, and asked Gu Xu in a asking tone.

"Those who are capable are teachers", this is the view that the National Teacher has always believed in.

As long as he can learn new knowledge and new skills, he is never ashamed to ask others for advice—even if others are much younger than him and have a much lower status than him, he will still ask his own questions in a humble attitude.

Perhaps it is precisely because of his style that even though he has only mediocre "fifth grade" qualifications, he can become a master of Talisman Taoism and rank among the saints.

"No problem." Gu Xu smiled and nodded.

Afterwards, Gu Xu followed the national teacher and left "Si Qi Hall".

The few remaining people silently watched Gu Xu's leaving back, and they were speechless.

…………

A few minutes ago, Shen Qiu was holding a brush, eager to show off his skills.However, the conversation between Gu Xu and the national teacher seemed to have poured a basin of cold water on his head, instantly extinguishing the flame of passion that was finally burning in him.

"I...do I still need to continue drawing this damned formation?"

Shen Qiu suddenly felt that what he was doing was meaningless.

There is only one winner in the end.

Now Gu Xu is far ahead.

No matter how hard he tried, there was no chance of catching up with Gu Xu.

At this time, he suddenly understood why the national teacher had shown obvious partiality to Gu Xu before - when such an outrageous genius appeared in the world, it was hard not to pay more attention to him.

"Forget it, let's continue to draw it!" Shen Qiu thought for a while, sighed helplessly, then lowered his head and continued to draw the talisman array, "Although I can't compare to that evildoer, I finally came here from Jinling A trip to Longmen Academy... If you admit defeat easily, wouldn't you become the laughing stock of those in the family again?"

…………

Zhao Xinran took a deep breath.

In her calm and indifferent eyes, there was finally a trace of emotional fluctuations.

She glanced at the black-clothed boy beside her, as if she were looking at a son who didn't live up to expectations.

The boy in black raised his head, his eyes looked very innocent.

"What are you looking at me for?" Zhao Xinran pointed at the documents on the ground and shouted sharply, "Hurry up and figure it out for me!"

The expression of the boy in black suddenly became extremely painful.

…………

As for Mo Li, his eyes were in a trance, almost suspecting that he was dreaming.

He hasn't started writing yet.

Others have already figured out the entire array.

That guy Gu Xu... how did he do it?Is he really a normal person?
…………

at the same time.

Gu Xu followed the national teacher to an empty room.

They sat facing each other on either side of a table.

Afterwards, Gu Xu began to explain to him the principle of the talisman array he designed according to the request of the national teacher.

"Master Guoshi, I use the symbols of 'Yin Yao' and 'Yang Yao' to represent the numbers '0' and '1' on this talisman array," Gu Xu explained, pointing to a certain symbol on the array. One point, "Look, these three symbols form a triangle. If both bottom corners are 'Yang Yao', then the top corner will automatically become 'Yang Yao'; in other cases, the top corner will be There will be a 'Yin Yao'.

"This component, I call it the 'AND gate.'"

"And the door..." The national teacher said the word silently, feeling a little confused.

But he still opened his mouth and said to Gu Xu: "You continue."

At this time, Gu Xu stretched out his finger to point to another triangle: "This triangle pattern is slightly different from the one just now - as long as one bottom corner shows a 'Yang line', then its top corner will also become a 'Yang line'. Yao'; if both bottom corners are 'Yao', then the top corner will become 'Yao'.

"I call it an OR gate.

"Also, these two symbols are connected by a straight line - the left side is 'Yin Yao', and the right side is 'Yang Yao'; the left side is 'Yang Yao', and the right side will show 'Yin Yao', the two are always opposite. .

"I call it a 'NOT gate.'"

Next, Gu Xu also introduced "NAND gate", "NOR gate", "XOR gate" and so on.

Finally, he described to the national teacher that using these components, a simple "adder" can be built to perform simple addition operations; if you want to perform more complex operations with more digits, you only need to use these "adder " can be used together.

The national teacher was silent for a long time, then looked up at him: "Gu Xiaoyou, can you say it again?"

PS: Sorry, it may be because Pudding has been in a bad state recently because he stayed up all night a few days ago, and his head feels dizzy every day, and Kawen is very stuck, so I haven’t finished writing until now.I may need a few days to adjust, and then I will guarantee a minimum of 4k words per day (equivalent to the previous two free chapters), if the state is better, I will add more!
(End of this chapter)