Chapter 80: The Four-Colored Conjecture

Lin Qiu was the first to speak, "Xiaoyou thinks, how can the two of us learn appropriately?"

The old rivers and lakes are worthy of the old rivers and lakes, and they will get to the point with one mouth, but they are stronger than what the woman Balabala said for a long time just now.

"You and I each give each other three arithmetic-related questions, the type is not limited, and the difficulty is not limited. ”

"Haha, that's exactly what I want!"

"However, I heard that the old gentleman has some rare treasures, I don't know if I can cut my love?"

"Well said! If you win, you can choose what I have, and if you lose, the old man doesn't want your things, and the right is the professor and you!"

Oh roar! The old guy has a very big mouth! The university teachers don't dare to say that they can teach me, are you sure you can?

Wu regretted coming over and didn't plan to collide with Lin Qiu.

But as soon as he came in, Wu Cheng felt a trace of excitement coming from the magic ring, and the old guy obviously had the most evil and evil fire mentioned in the Book of True Knowledge!

Wu Cheng waved his hand, "Gambling is character, I can't take the old man's things for nothing, I may not have much else here, but the spirit stone is extremely rich."

If I can't answer one of the three questions, I'll give you 100,000 spirit stones!

100,000 spirit stones! Heng Jue's eyes were about to jump out at this time!

With the huge Nine Shadows and One Vein, the liquid assets that can be obtained are probably only 100,000 spirit stones!

It is said that women like rich people, and rich men are indeed handsome enough to spend a lot of money!

Seeing that his grandmother's eyes were full of little stars in the Bulin Buling Land, Heng Jiushan couldn't wait to find a crack in the ground to get into.

Although I don't know who my grandfather is, but watching my grandmother make waves outside, are you sure it's appropriate?

"You're a junior, I'll let you ask the question first. ”

Wu Cheng raised his eyebrows, he had seen someone who was not afraid of death, but it was the first time he had seen someone who was in such a hurry to die!

Although I was busy supporting the Han Room all day in college, I couldn't hide the reality that I graduated from 857 University!857!857!

The duel between the two attracted many disciples of the Demon Overlord Sect to come and watch.

For this kind of battle, Lin Qiu is very happy to see it, after all, he has returned to the Nine Shadows and One Pulse, and the Nine Shadows and One Pulse in the future is destined to be no longer unheard!

"Get on the map!"

Soon, a detailed map of the north was brought up.

When the map opened, there were dozens of areas marked with the names of each city, which was very detailed.

"The first question is very simple.

Ask the seniors to use the least number of colors to distinguish the dozens of spheres of influence on this map, and ask that the same color is not allowed around each faction. ”

Hearing this, Lin Qiu couldn't help but show contempt, he was a little disappointed in Wu Cheng at this time.

Mathematics is originally a profound knowledge, but it is used by the hairy boy in front of him to mark what map, which is simply insulting mathematics!

Moreover, this question is obviously not difficult, you just need to find a random place to deduce it at will.

Wu Cheng saw that the other party was writing so quickly, and he couldn't help but snort coldly in his heart, this is a dignified four-color conjecture!

You dare to write so quickly! It's really immature, and you have lived so much in vain.

The four-color conjecture states that only four colors are needed on each map to divide all regions without repeating them.

Mathematically speaking, the essence of the four-color theorem is an intrinsic property of a two-dimensional plane, that is, two straight lines that do not cross without a common point in the plane cannot occur.

Lin Qiu put pen to paper for the first time, and then began to increase the number of colors, the more colors were used, and the annotation was just over half, and it reached eight colors!

Unconsciously, a drop of cold sweat has slipped from his sideburns.

It's not as good as the game, I don't know how difficult the chess game is, Lin Qiu didn't dare to put pen to paper at this time, and stared at the half of the map he had drawn for a long time.

Such an ancestor is the first time Hengjue has seen it, serious, focused, and puzzled.

Re-erase the colors he had drawn and re-paint, this time with caution in every color.

However, the color next to each area is so difficult to choose, and it is easy to get out of the pool if you are not careful.

The distribution of forces in the north is huge, which makes it even more difficult for Lin Qiu.

Eventually, after a while, the entire map was finally marked, six colors!

This is already the upper limit of Lin Qiu's computing power, and he has the intention to continue to optimize, but he knows it in his heart.

If we continue to optimize, the number of calculations is already terrifying to a certain extent! It is not something that can be done by one person.

Also with solemn faces are Heng Jiushan and Heng Jue, both of whom are also masters of arithmetic.

Heng Jiushan's two hands never stopped, always in the sleeves of the non-stop.

As for Heng Jue, he kept deducing in his mind, but found that the amount of calculation was no longer beyond the reach of the human brain.

Wu Cheng nodded, "Take it." Yingzhao took a map that had been marked.

The map opened suddenly, and when Lin Qiu, Hengjiushan, and Hengjue saw the four-color map marked by Wu Cheng, everyone roared in their heads, as if there were thousands of horses running by.

Four colors, compared to the six colors estimated by Lin Qiu, is a whole two less! This kind of computing power, if it is calculated by one person, I am afraid it will take a year!

Lin Qiu wiped the sweat from his forehead, "It seems that the first game was careless, and you won if you underestimated your little friend."

What do you want?"

"There's no hurry, it's not too late to pick together after three rounds.

Next, I will ask the old gentleman to ask the question. ”

When Lin Qiu heard this, his whole spirit was shocked, he had been in and out of so many dangerous places, and the various mechanisms he had seen counted were countless, just give you one, you will definitely not be able to calculate it!

"Listen up!

There were five demon rats, and they divided a pile of walnuts, but they couldn't divide them equally, so everyone agreed to go to bed first and talk about it tomorrow.

In the night, a demon rat got up and threw a walnut down the hill, which was divided into five parts, so it hid its share and went to sleep again.

The second demon rat got up and threw a walnut, which happened to be divided into five parts, and put away his own portion.

The third, fourth, and fifth demon rats are all like this, throwing one can just be divided into five parts, and they also put away their own share. Q: How many walnuts are there?"

After Lin Qiu finished speaking, he looked at Wu Cheng proudly, just this question, you give me the calculation! If you don't be confused, Lao Tzu will go out upside down today!

When Heng Jiushan and Heng Jue heard this question, they were also secretly shocked in their hearts.

I didn't expect that the master would go out on a trip and reach such a level of arithmetic! This kind of problem can be done by both of them, but it takes a long time.

In fact, if it takes more than half a day, it is equivalent to admitting defeat and can't afford to lose that person!

As for Kong Haoda, Ying Fan and others, they are completely confused, which is okay.

Why don't those demon rats keep their promises and sleep honestly?

Wu Cheng was also stunned, it was not that he didn't know this question, but he was just sighing, the arithmetic level of the Xuanqi Continent had reached such a level...