Due to the large number of students participating in the Olympiad competition, those invigilators are still grading papers until now.

Professor Wang was sitting in his office, sipping tea from his cup.

"Knock knock. Just then, there was a sudden knock on the door of his office.

"Come in. Professor Wang said lightly and put down the teacup in his hand.

With a "creak", the door was slowly pushed open, and Lin Fan's male invigilator walked in, holding a thick stack of papers in his hand.

"Hello professor, what you asked for was brought to you. The invigilator said to Professor Wang very respectfully.

"Here's the student's paper you wanted. The invigilator placed a thick stack of papers in front of Professor Wang's desk, and then pulled one out from the top.

"Have you seen it?" asked Professor Wang.

"Nope. The invigilator shook his head slowly, he was not interested in this student's paper, and when he thought about it, he just wrote it casually, after all, he only wrote it in such a short time and handed it in.

"Well, I'm sorry for you. Professor Wang smiled kindly.

"No trouble, no trouble, I should be able to serve you. The invigilator said flatteredly.

After hearing the invigilator's words, Professor Wang smiled even brighter.

He was a stern and unsmiling man.

But today, he smiled twice for the first time, and if his students saw it, they would definitely be stunned.

"If there's nothing to do in the morning, I'll go first, I'll have to go and mark the papers. The invigilator said to Professor Wang.

"Well, thank you. Professor Wang said to the invigilator.

"You're welcome, you always rest early. The invigilator pushed the professor and said, then turned to leave, and gently closed the door.

Professor Wang took out a large front door from his pocket and lit it, and began to swallow the clouds and spit.

He is actually quite rich, but he has always liked the taste of this cigarette, and when he was poor in the past, he smoked this cigarette for too long, and he had already developed a habit.

Professor Wang took Lin Fan's roll in his hand and spread it on his desk.

"Boy, you dare to be so arrogant, I want to see how many brushes you have!" Professor Wang laughed, and then spread out Lin Fan's scroll.

Professor Wang just glanced at the scroll casually, and then he was stunned, he stared at the scroll on the table tightly, his face full of shock.

"This kid can do it, it's all right! And according to the invigilator, he should have completed all the papers in a short time. Not bad, no wonder I dare to be so arrogant, it's really a bit level. Professor Wang stroked his beard and exclaimed.

Although he has a lot of opinions about what Lin Fan did, he still appreciates Lin Fan's talent very much.

"Hehe, let me see this last question, how did you answer it!" Professor Wang laughed lewdly, and then sent the paper over, his eyes skipping the previous question to the last page.

"Hey, he actually wrote, at his level, he shouldn't be unaware of Goldbach's conjecture. Professor Wang was stunned for a moment, and then said to himself.

He felt that if Lin Fan didn't answer this question, then Lin Fan should be the first place in this competition, but Lin Fan surprised him and actually challenged the world's most difficult math problem.

This is Goldbach's conjecture, a conjecture that no one has been able to solve for many generations.

Even the famous Master Chen still didn't solve the final answer in the end, only half of it.

But Goldbach conjectures that if the final difficulty is not solved, then it is no different from not being solved at all.

His most important problem is that any even number greater than 2 can be written as the sum of two prime numbers.

Basically, most of Goldbach's conjecture has been solved, but only the final answer, that is, one plus one, has not been solved so far.

It's so hard, it's not a problem that people can solve at all!

Professor Wang can be said to be a pedantic in his life, and he is rich in learning, but he can only think about Goldbach's conjecture in his dreams.

This question is answered by the truly best mathematicians in the world, and he is far from it.

After Professor Wang saw that Lin Fan actually wrote the answer, he lost interest in Lin Fan and just wanted to close the volume.

Suddenly, Professor Wang saw three pieces of scratch paper next to the roll.

A page full of scratch paper was densely written, and many of the formulas on it were not mastered by Professor Wang, and there were some derivation processes that he couldn't even understand.

Professor Wang's whole old face was moved, and the corners of his mouth trembled with fright.

"This kid...... How is it possible? His level is far more than that, I am not right, I should say that it is far more than all the mathematicians today!" Professor Wang took a deep breath and said slowly.

Professor Wang hurriedly opened the scratch paper, and he stared at the content tightly, starting from the first line.

He frowned at every line, because the derivation process above was so difficult that he needed to hammer it out again.

The more Professor Wang looked at it, the more frightened he became, and as he looked at it, drops of cold sweat couldn't help but drip down his forehead.

Professor Wang's level is among the top in the country, but when he looks at Lin Fan's draft now, it is so difficult.

He felt that this was the most difficult, profound, and powerful derivation process he had ever seen!

It took three hours for Professor Wang to read about 1/5 of the first chapter on scratch paper.

"Whew........." Professor Wang slowly exhaled a breath of turbidity, and then the whole person slumped into his chair.

Sweat was dripping down his forehead, and his face was pale and inhuman.

"How is it possible! How is it possible! He is just an ordinary high school student, how can he solve the Goldbach conjecture at such a young age! I don't believe it, I don't believe it, I want to take a closer look. Professor Wang took out a cigarette from his pocket and lit it.

He began to swallow the clouds and spit out the fog, just to relieve the pressure in his heart, just after looking at Lin Fan's scratch paper for a while, he felt that his brain was a little insufficient.

He benefited a lot from the knowledge on it, and he was taken aback, and he had a feeling of being sudden.

After smoking the cigarette in his hand, Professor Wang took out a pair of reading glasses from the drawer and put them on.

The most exaggerated thing is that he actually took out a magnifying glass from the drawer with his left hand, he put the magnifying glass on top of the scratch paper, and then brought his reading glasses and stared at Lin Fan's scratch paper tightly.

He held his breath, nervous.

He didn't look at a scroll, it seemed like a book from heaven.

He was very religious, and very careful, for fear of missing the slightest detail.

(End of chapter)