After all, seeing his brother's group eating so happily, Li Changsheng couldn't help but have the idea of letting Song Yiren open an ice cream shop.

However, they are not short of money, not to mention that they will also expose the abilities of the Song Yi people, and this kind of idea can only be thought about.

The B and C departments on the stage have just begun, and it is indeed time for Li Changsheng and them to come.

"Why do I feel like this question is similar to the one you answered earlier?"

When Song Yiren heard the question, he leaned over to Li Changsheng's side and asked.

"Blue-Eyed Island problem?"

Li Changsheng asked rhetorically.

"Yes, but let's be honest. Although I know your answer, I don't understand how you came to this conclusion!"

Song Yiren whispered.

"It's a simple question. Zhuge Xia Heng obviously noticed the whispering of their little couple, and he explained: "The problem of Blue Eyes Island was raised by Tao Zhexuan, the winner of the Fields Medal in mathematics. This is a question with several high-level levels. The math problem in front of us is a low-level problem in comparison. ”

"Is there a hierarchy for this math problem?"

Song Yiren asked in a little surprise.

"Yes, there are ten levels. Li Changsheng looked a little jealous, and answered Zhuge Xia Heng's words first: "The first level is what is the answer to this question itself? The answer is that after the tourist spoke, all n blue-eyed people committed suicide together.

The second level is, do brown-eyed people commit suicide? The answer is no, because they don't know that there are only two eye colors on the island;

The third level is, would the islanders commit suicide if there were no tourists?

The fourth level is, why should we care about whether tourists bring new information? The answer is that only new information can cause new results, which is a common sense. But this blue-eyed island issue seems to overturn this common sense.

The fifth level is, do tourists bring new information? The answer is yes. This new knowledge is an n-order knowledge, which is surprising beyond the conventional.

The sixth level is, why is this n-level knowledge a new piece of information? The answer is that before the tourists announced, the islanders could only obtain the most level knowledge by observing each other.

The seventh level is, how does this new information work? The answer is that the new information makes it possible for the islanders to come up with their own eye color through a judgmental experiment. The approach to this judgmental experiment is to wait and see.

The eighth level is, logically, how do we describe the effect of a tourist's speech? The answer is that the visitor publishes information that the islander already knows, elevating it from a weak consensus to a strong consensus.

The ninth level is, how do you answer the various variations of the Blue-Eyed Island's question?

The tenth level is, in real life, what phenomena can be understood by these principles? "The Emperor's New Clothes" and so on. ”

"I see, I didn't expect you to answer ten levels of questions correctly before?"

Song Yiren said in surprise.

"Of course, who am I!"

Li Changsheng looked at Song Yiren very proudly and said.

The 10-level problem represents the 10-level thinking, which can be used not only for mathematical understanding, but also for other disciplines.

The people in Department B are all studying mathematics, so their logical thinking ability will be a little stronger, but at most they will hover at the fifth level.

To everyone's surprise, Cao Xuanbing's teammates did not lose to Zeng Yangwei's teammates at all, the two sides fought into an almost five-five situation, and what was even more surprising was that Cao Xuanbing's side actually won one more game than Zeng Yangwei's side, they were five wins and four losses, Zeng Yangwei's side was four wins and five losses, if Zeng Yangwei won, he could win the playoff, if he lost, he could only lose.

Cao Xuanbing took the stage first, and his coming to the stage attracted a lot of fans to scream loudly.

He was born in a special forces, needless to say about the muscles on his body, healthy wheat-colored skin, and the clothes on his body are not cheap, and the most important thing is that he is very handsome, and he treats anyone very easily, without any shelves.

It's almost killed the hearts of many fan girls.

In the face of the screams of these little fan girls, Cao Xuanbing was very gentlemanly and thanked them.

And his opponent, Zeng Yangwei, finally came to power.

Li Changsheng took a closer look, Zeng Yangwei had a natural golden hairstyle, and the clothes he was wearing were also extremely fashionable, so he was not a character to mess with at first glance.

It's just that Zhuge Xia Heng noticed that Zeng Yangwei's hair was a little thin, which made him very happy.

"I hope this one Zeng Yangwei can win!"

It's just that Zeng Yangwei has also attracted the likes of many people, both men and women, and it can be seen that many people like him.

"Okay, everyone, be quiet, the game begins. ”

The host on stage began to draw questions.

The eyes of the two of them collided, and there was a spark in their eyes.

The question came out, it was a ten-level question like Li Changsheng, and both of them rushed to answer at the same time, and directly told the answer.

Zeng Yangwei opened his mouth to come, and an answer that completely violated the common sense of life appeared.

Cao Xuanbing stood upright, his answer was exactly the same as Zeng Yangwei's, but the speed of his speech was not slow, and he spoke with Zeng Yangwei almost at the same time and ended together.

"Congratulations to both of you, you answered correctly, and now start overtime until one of you can't answer. The moderator spoke.

This is a fair approach, after all, it would be unfair to say that you will be able to do both, but you will be eliminated because of your slow hand speed.

And from B learning, there were also bursts of cheers and cheers.

I also heard a man with glasses say with a little envy:

"Zeng Yangwei is worthy of being the chief general of our B department! The person is actually good-looking, but he has been working hard, and I have taken a different path. ”

His voice seemed to say goodbye to something.

But the people around him thought he was insane and acted as if they hadn't heard anything.

Li Changsheng heard his words unexpectedly, and glanced at him seriously, only to see that he was dressed chaotically, his hair was casual, and he looked like a person who couldn't dress up, his skin looked a little dark, and his expression was a little depressed.

In the next second, he left Li Changsheng's sight, and his figure looked a little lonely and a little lonely.