Mr. Teng got the paper and looked at the title, which was full of words and no numbers, and couldn't help but be more curious.

After a cursory reading, Mr. Teng understood the mystery, in fact, whether the person with the green head jumped into the sea or not is not the point, the focus is on the tourists, whether his words have an impact on the people on the island.

Of course

The words of tourists are not the point, the point is... The tourist has a message.

Unexpected!

Xu Mang's question is so tricky!

Not bad!

Because of Xu Mang's question, Mr. Teng got a new inspiration, maybe the Olympiad questions can be done in this way, focusing on logical thinking, rather than just taking into account skills, and the players who can participate in the provincial Olympiad Mathematics Competition, which one is not excellent in skills.

"Professor Fuji?"

"Brother Xu's title... Isn't it a little too difficult?" asked Jin Leilei.

"It's ok. ”

Teacher Teng glanced at the five people present and said silently: "I don't have to go to class either, you will figure out the mystery of this question for me in the next few days." ”

Clams?

No... Don't go to class?

Several people were taken aback, but there was nothing they could do but silently follow the order.

Teacher Teng left, and after he saw Xu Mang's question, he had a brilliant idea to let Xu Mang join the members of the next provincial Olympiad question group.

...

"You're going to die?"

"I let you go to the jungle, what are you fooling around for me?"

"Into the grass, into the grass!"

Xu Mang and Yang Xiaoman played Glory of Kings in the room, as before, once Yang Xiaoman came into contact with competitive games, he would become extremely irritable, and Xu Mang's various vain behaviors were scolded by Yang Xiaoman.

Five minutes later,

Xu Mang was kicked out of bed by Yang Xiaoman, and at this time he was sitting alone on the toilet, brushing Douyin.

Woman...

Xu Mang sighed, especially for women like Yang Xiaoman, this emotion became a little too fast, they were like blue skies, white clouds, clear skies, and sudden storms, and nowhere to hide was always unexpected...

Jingle bells!

"Hello?"

"Xu Mang!" Mr. Teng's voice came from the other end of the phone, "Do you know where my office is?"

"Oh..."

Xu Mang opened the toilet door and shouted at Yang Xiaoman: "Xiaoman... Mr. Teng asked me to go to his office. ”

"Get out!"

Yang Xiaoman is still angry, he was originally bound to win the last game, but he was stunned by this guy, and the queen of e-sports, who has a very strong desire to defeat the game, is absolutely unbearable.

soon

Xu Mang arrived at Mr. Teng's office, pushed the door and saw that Mr. Teng was working.

"Sit down. ”

"Oh. ”

A few minutes later,

After Mr. Teng finished his business, he looked up at Xu Mang, and suddenly smiled: "Xu Mang... I didn't expect you to hide so deeply, the title can be out, I've already seen it, it's a little deep, it's a little interesting!"

"Of course!"

"Genius!" Xu Mang said proudly: "Teacher Teng is not me bragging, I am the math paper of our school's final exam, guess how many points the whole school has?"

“...”

Teacher Teng glanced at Xu Mang, and according to the question he came up with in the morning, it is estimated that... Hard, right?

"Seventy?"

"Teacher Teng... Am I the one who made my classmates fail?" Xu Mang said solemnly: "I am such a ruthless and shameless person? Everyone is going to celebrate the New Year, and I can't do it because of reason!"

Teacher Teng was stunned for a moment, is he such a person who values love and righteousness?

"That..."

"Twenty-nine o'clock. Xu Mang said with a smile.

“...”

Really!

That's the kind of person you are!

Teacher Teng smiled bitterly: "Xu Mang, since you are so good at asking questions, do you have any ideas? For the next provincial Olympiad competition, you will be the deputy leader of the question team, responsible for reviewing and the direction of the question type. ”

Xu Mang was stunned for a moment, and asked curiously: "Then I will study in the Department of Mathematics of Jiang University Institute of Technology?"

"It's okay!" Mr. Teng nodded.

"Not good!"

"But it's okay to ask questions. Xu Mang smiled: "I'll join!"

"That's settled, I have your contact information. Teacher Teng glanced at Xu Mang seriously: "Xu Mang... You're really not coming to our math department?"

"Hmm. ”

Hearing the reply again, Mr. Teng was still very sad and helpless... I would have turned my heart to the bright moon, but the bright moon shone on the ditch.

...

Time passes minute by minute,

Xu Mang and Yang Xiaoman's days in Jiangda are about to come to an end, and they will return to Ning City the day after tomorrow.

On this afternoon,

Xu Mang came to the classroom of the provincial Olympic team, and he was going to give Jin Leilei a few people a final lesson, of course, Yang Xiaoman also followed.

"Brother Xu Mang..."

"Let's announce the answer!" Jin Leilei said bitterly: "We feel like we are going to die." ”

"yes... Brother Xu Mang. ”

"Let's announce the answer!"

Cries for help came like a tidal wave.

[Descendants of Ge Jun 2.0 - Complete!]

【Get Upgrade Card*10】

Xu Mang saw the system prompt that the task had been completed, and it was almost time to announce the answer.

"What do you want to know?" asked Xu Mang.

"Did the tourist's words bring results?" said Mr. Jin, "and we want to know this." ”

"Yes!"

Xu Mang nodded and said solemnly.

At this point,

The only female contestant in the team raised her hand and said, "Brother Xu Mang, before the tourists came, didn't those islanders already know that the people with green heads existed?

"It's simple. ”

"I know that you are a green head, I know that Jin Leilei is a green head, I know that you are small and green on the top... I always knew that the ninety-ninth person was green head, but I didn't know that I was green head. Xu Mang said: "Then by analogy, the words of the tourists, let everyone know that there are people with green heads on the island." ”

The five people below were confused.

"Maybe it's hard for you to understand now, it's okay!" Xu Mang continued: "The simplest situation is like this... If there is only one person on the island who is a greenhead, then the result of the tourist's words is that he does not see the others who are greenheaded, so he jumps into the sea the next day. ”

"What if..."

"There are two green-headed people on the island, me and Jin Leilei. Xu Mang pointed to himself and Jin Leilei: "At this time, the words of tourists will not bring results, because Jin Leilei and I can see that the other party is a green head, but I don't know if Jin Leilei knows that I am a green head, and Jin Leilei also doesn't know." ”

"But the tourist spoke... His speech brought a different result, because I know, Jin Leilei also knows, there are people with green heads on the island, what kind of result will this bring?"

"I will wait a day to see if Jin Leilei will jump into the sea, if not, it means that Jin Leilei also saw the person on top of the green head. Xu Mang paused and continued: "I know that except for me and Jin Leilei, no one else on the island is green, and the person on the green head that Jin Leilei sees can only be me." ”

"Understood?" said Xu Mang.

Pregnant!

It seems to have touched the threshold!

After Xu Mang's explanation, the five members of the provincial Olympic team suddenly realized, but it's a pity... It's just a little bit closer.

"What if there are three people on the island? For example, I and Jin Leilei. Xu Mang said: "Actually, it's all the same, and the words of tourists at this time will not bring results, because the three of them all know that there are people with green heads, and I see that Xiao Xiao and Jin Leilei can see each other's eyes, but I don't know if I am green on the top of my head." ”

"Because if I'm not a green head, only less than and Jin Leilei are green heads, less than I don't know if Jin Leilei knows that there is a green head on the island. Xu Mang coughed lightly and moistened his throat: "At this time, the action of the tourist's speech will give me a result, I will wait for two days to see if Xiao Xiao and Jin Leilei will jump into the sea, if they don't jump into the sea for two days, I know that Xiao Xiao and Jin Leilei will wait for me to jump into the sea, so on the third day... The three of us would jump into the sea together. ”

According to this logical thinking, we can continue to deduce until the Nth green head man. ”

Clear!

See the other side!

Jin Leilei and the others followed the train of thought provided by Xu Mang, and they roughly understood.

Then the question arises again...

Why do tourists' words lead to a whole new outcome?

At this point,

Yang Xiaoman suddenly spoke: "You want to know why the words of tourists can produce results, right?"

Jin Leilei and the others nodded.

"It's actually quite simple. ”

"Because the tourists made a move - announced. Yang Xiaoman said expressionlessly: "Even if everyone knows his words, but this behavior he announced has caused an important difference." ”

"Before the announcement, everyone just knows the content, I don't know if others know, after the announcement... Know, everybody knows. Yang Xiaoman glanced at the five people: "The former is just a weak consensus, and the latter is a strong consensus, understand?"

Jin Leilei shook his head and began to be confused again.

"Before the tourists came, it was a weak consensus that there were greenheads on the island, but when the tourists announced, the weak consensus became a strong consensus, which contained more information and therefore led to more consequences. ”

"Do you understand now?" Yang Xiaoman asked.

Oh!

I see!

It's so special!

Jin Leilei and the others looked at Xu Mang and Yang Xiaoman, their eyes exuding a light of worship.

"Regarding weak consensus and strong consensus, let me give you an example. Yang Xiaoman said with a smile: "You all know "The Emperor's New Clothes", right? The emperor did not wear clothes, which was a weak consensus in itself, but after the child said it, it became a strong consensus. ”

“...”

“...”

“...”

It's not fun to be a human being!

It's really not interesting!

Why do monsters like Brother Xu and Sister Xiaoman exist in the world?

Jin Leilei and the five of them were speechless, although they thought that there was a gap between themselves and Xu Mang and Yang Xiaoman, but they never thought that the gap would be so huge.

"Brother Xu Mang, Sister Xiaoman?" Jin Leilei said helplessly: "You are so good, aren't you afraid of other people's retaliation?"

“？？？”

“？？？”

The two were stunned for a moment and looked at each other.

"Are you afraid?"

"Don't be afraid. ”

"I'm not afraid. ”

Xu Mang turned his head to look at Jin Leilei, and said seriously: "Don't be afraid, because we are black wind and double evil!"

Jin Leilei: Wow

...

At night

Yang Xiaoman stayed in Xu Mang's room, thinking about a very important thing, that is, the nicknames of himself and Yang Xiaoman were too ugly.

Black Wind Twin Evils?

What a nickname!

"Huh?"

"What do you think?" Yang Xiaoman glanced at Xu Mang, who was in a daze.

"Wait a minute!"

"I've got something. Xu Mang said.

Xu Mang looked at the data on his system.

Upgrade card: 55

finally

It's time to upgrade!

Xu Mang didn't talk nonsense, and directly clicked on the attribute - Zhi.

Upgrade again!

My intellect!

......