"Wow, I know."

"Teacher Zheng cheated people again..."

"It sounds simple math problems...but why do I feel like I don't have enough brains? Am I really a high school student? I'm useless."

"I can't even answer such a simple question for junior high school students... What's the point of living?"

"Does anyone know the answer? Yang Ning."

Yang Ning stood up.

"Teacher...I...I...I haven't figured out this question yet."

Zheng Yihang smiled slightly and said, "Don't be nervous, don't be nervous. This is a small puzzle game that brings closer relationships between normal teachers and students. If you don't know, it doesn't matter. You sit down."

"Lin Hai, where are you?"

Lin Hai stood up and said, "Teacher, give me some time. I already have a idea. I believe I will be able to figure it out soon."

"It's okay, you can sit down first."

"Lin Hai, where are you?"

Zheng Yihang called the next student again, all of whom performed the best in the previous two questions, and wanted to see their thinking and logic abilities.

Lin Hai stood up, "Teacher... have you been three times?"

Zheng Yihang's eyes lit up slightly, and he continued, "Continue, how did you get it three times?"

"I just calculated it, but there are no steps to solve the problem."

"I understand, you can sit down first."

Zheng Yihang also asked Lin Hai to sit down. Lin Hai is a good classmate, but he still lacks some talent in some aspects.

Then, Zheng Yihang called Fu Shaohua one after another and Guo Xiling came to answer.

Unfortunately, neither of them had the right idea. This question seemed very simple, but if you really look at it, this puzzle question would not be simple either.

Then, Zheng Yihang's eyes fell on Fang Chao, "Fang Chao."

"Teacher Zheng."

"What do you say? Is there an answer?"

"three times."

Fang Chao answered the same answer as Lin Hai.

Lin Hai looked at Fang Chao, I just mentioned the answer, what are you saying now?

Zheng Yihang said, "Come on, tell me what you think."

Fang Chao did not go to see Lin Hai. Although Lin Hai had the correct answer, he did not have the correct solution to the problem, so he could only get a comfort score. It would be impossible to get a full score.

"Suppose the person wearing a black hat is a, b, and c. Thinking from the perspective of a, a sees b and c wearing a black hat. A thinks: when the light is turned off, B sees c wearing a black hat, which is satisfied with "at least one black one", so B cannot be sure whether he is black and will not clap. And if only C wears a black hat, C will clap when the light is turned off for the first time. But when the light is turned off for the first time, C does not clap, which means C is also waiting for others to clap, B knows that he also wears a black hat, and b and c will clap when the light is turned off for the second time. But when the light is turned off, it means that b and c also see two black hats, and a thus leads to the black hat. The logical reasoning of b and c is the same. Other people wearing white hats are so reasoning, waiting for a, b, and c to clap when the light is turned off for the third time, so there are only three people who clap when the light is turned off, so this is the answer."

"Boss is so awesome!"

"Although I can't understand, I feel right!"

"So amazing, is this the world of the strong? Who is he? He is so powerful... There are such big shots in our class."

"After seeing this, he is actually pretty good. I feel a little moved. Two academic masters are together, my mother and others will definitely not object, right?"

Zheng Yihang smiled and said, "What you said so is just assuming three people, so what if five people were wearing black hats?"

"Teacher Zheng, if five people wear black hats, this question will be wrong. From the beginning, someone has already told us the answer. So when the lights are turned off, there is a slap in the face. This means how many people wear black hats, but there are only 52 people in our class. If the lights are turned off slowly, I think it is boring... Actually, I think this should be the case. If there is only one black hat, the first time when the person wearing black hats sees everyone wearing white will immediately sound applause. So the first result is that people know that there are at least two black hats, and at least one black hat. The second time, there is still no applause. If there are only two black hats, then these two people should have heard applause when the lights are on this time, indicating that at least three black hats exist, and so on..."

"Wow, what a mystery guy!"

"Which school is this a great master? This is a bit too powerful, right? I was stunned, but I felt that what he said was right..."

"Is mathematics so interesting? It seems that his name is Fang Chao, right?"

"Why do I feel like I've heard of this name?"

"What's the strange thing about popular names? Just like Wei, Chen Wei, Lin Wei, Wang Wei, etc., this is a lot of things to catch, Chao said, "Isn't it all Chen Chao, Yang Chao, Lin Chao, Fang Chao, you must have heard of it somewhere."

"No, I've definitely heard of this person..."

At this time, Yang Ning, Pan Mingming, Lin Hai and others seemed to have thought of something, and looked at Fang Chao with an incredible look on their faces. They had guessed Fang Chao's identity, but they didn't dare to confirm it.

At this time, Zheng Yihang looked at Fang Chao and said, "I have always known that our class has the full score champion in the CMO province and region. When I see you today, it is indeed extraordinary."

"What? The winner of the CMO preliminary round?"

"Damn, this thing is very valuable..."

"I thought I was strong enough, but I didn't expect that there were even more strong players in the strong. No one has ever received full marks in this thing in the past few decades. This year, there was a full mark champion from CMO province and region, but I didn't know his name. I only knew that he should have entered the No. 1 Middle School of the City. I thought he would be arranged to class one or two, but I didn't expect that our class seven came, and I was under pressure now."

"I used to be the first in mathematics in class, but I can't show off in this class anymore. Life is boring if I can't show off..."

"Why, why, since Yu is born, why is Liang!"

“…”

At this time, many people's eyes were completely different when they looked at Fang Chao.

Fang Chao looked shy, "Don't look at me like this, it's just the champion of the preliminary round... I don't want to do it either. My goal is to win this year's Imo's international individual gold medal."

"Damn it, I'm so fucking king!"
Chapter completed!