you come from the sky

Next to the guest house is a library, and there is a reading room on the second floor of the library.

Before staying in this guest house, Yuan Youbing had already checked the surroundings, so naturally he would not leave this reading room.

Therefore, Fang Haochen also knew that this reading room used to be a coffee shop, and it was specially opened for Soviets or researchers who had returned from overseas during the Sino-Soviet honeymoon period.After the Sino-Soviet relationship broke down, all the Soviets in China withdrew, and this coffee shop was also closed.It wasn't until last month, when the library reopened, that the cafe was converted into a reading room.

But what Fang Haochen and Yuan Youbing didn't know was that this reading room was a little different. It was very close to the only morning dance hall nearby, so it became a resting place for many ballroom dancers.

It was approaching noon at this time, and there were no two people in the reading room.After Yuan Youbing came in, he talked to the administrator, and temporarily used the reading room for public use.The door of the old building was thick and big, and after being closed by Yuan Youbing, what was said inside could not be heard outside.

It was obvious that Lu Yongan also knew that it was wrong for him to come here, so a dignified professor didn't even dare to sit in the reading room, he just stood aside, standing opposite Yuan Youbing with his group of students, as if he was about to be criticized.

Oh no, not a group of students.

There is one exception.

The weirdo didn't stand on the side tremblingly, but chose a good seat by the window when he entered the reading room, and he seemed to come here often, as if he was familiar with the road.Lu Yong'an obviously also noticed that strange person, he winked at him a few times, but it was as if he hadn't seen him.

"Ahem!" Lu Yongan had no choice but to cough dryly.

"Huh?" The weirdo only noticed Lu Yongan this time. He glanced at Lu Yongan, smiled, and then stood up, but he didn't stand with those students, but stood by his seat, like a A lion that only guards its territory.

Fang Haochen saw everything in his eyes, he knew why Lu Yongan was standing, just like he knew that Yuan Youbing called these people over to "interrogate" who leaked their residence.But now Fang Haochen doesn't care about such "trivial things" as who leaked the secret.

"Sit down." He said, before Yuan Youbing and Lu Yongan could speak.

After speaking, I also chose a place to sit down, looked at my watch, and said, "Bring it here."

"Uh... good!" Lu Yongan never expected that Fang Haochen and Yuan Youbing would not hold him accountable. He was already prepared to be taken by the police comrades for investigation, but he never imagined that he would pass the test so easily.He froze for a moment, then walked over quickly, took out two thick research notes from his bag, and placed them in front of Fang Haochen.

Fang Haochen flipped through the research notes casually, and could see that the research notes were the joint achievement of the entire research group. Some were neatly written in pencil, some were crooked, and occasionally there were a few paragraphs written profusely with pens.

Fang Haochen turned backwards.

Very surprised.

He originally thought that Lu Yongan's subordinates were all people who had no new tricks like him, but he didn't expect that there was a strange one among them.To use an analogy, mathematical research is like walking a maze. Some people think about how to get out of this maze smoothly, and some people think about how to change walking into cycling to be faster and more efficient, and this " The idea of ​​"writing with a pen" is to directly smash the wall and cross it all the way to the exit.

Can Lu Yongan teach such a student?

Fang Haochen had some doubts, but he didn't show it.He closed his research notes, raised his head and said, "Our current research project lacks a mathematical talent."

"What kind of talent?" Lu Yongan asked eagerly, "Is it purely theoretical? Or do they have an interdisciplinary background?"

"I need them all." Fang Haochen has long been used to such questions, and he dealt with them skillfully, and then asked, "Do you have a pen and paper?"

"I have it!" A student quickly took out a yellowed notebook and some pencils from his bag. Fang Haochen took one of them and wrote two questions in the notebook.Then he asked the reading room for a few good-quality white papers as answer sheets according to the number of people, and handed them to several people respectively. When he handed them to the strange man, the man still smiled at Fang Haochen as before, saying Said: "Thank you."

Fang Haochen didn't answer, turned around and handed the problem to Lu Yongan. He clearly heard that Lu Yongan took a deep breath after reading it, then passed the problem to the next person, and then took out a pen to calculate on the straw paper.

Lu Yongan also understands that the small reading room has now become a serious and serious examination room. No matter whether he used to be a director or a tutor, he is now an examinee just like his students, and their examiner is Fang Haochen, and his Behind the 201!

Fang Haochen sat far away, chose a corner where no one would notice, and looked at the strange man.

The weirdo was also looking at the topic seriously, but he didn't take out a pen and paper to calculate as quickly as his classmates and mentors did. He frowned, looking a bit meditative.

Then he took out a pen from his suit pocket——Fang Haochen's attention was unconsciously concentrated, it was a pen, and the "pen word" in Lu Yongan's research notes was this weird guy?Fang Haochen couldn't help guessing secretly in his heart.

But at this moment, the strange man suddenly raised his head, his gaze almost made Fang Haochen think he was looking at him, Fang Haochen realized that he was holding his breath unconsciously, and he secretly told himself that the strange man would not notice at such a long distance his.

Fortunately, after a while, the weirdo lowered his head again and wrote something randomly on the paper.

Fang Haochen breathed a sigh of relief, he was very satisfied.This shows that the topics he and the 201 research group behind him are very technical.

For these two questions, the reference answer time given by the best mathematics researcher in 201 is: 201 hours.That is to say, if someone can solve these two questions in twenty hours, then they meet the 201 standard and can be recruited into [-].

Fang Haochen stood up, glanced at his watch, greeted Yuan Youbing, and left the reading room.

This was arranged before he and Yuan Youbing came. The two of them took turns to "invigilate" the exam every five hours. Candidates could ask others to deliver meals or sleep in the reading room, but twenty hours would not Hence the extension.If you don't want to answer, you can give up in the middle, and you can leave at any time.

Fang Haochen calculated that after five hours, if he went well, he could almost solve the first question. He was looking forward to what kind of answer the "pen writing" would give him when he came back.

After going back to rest for a while, Fang Haochen washed his face and changed his clothes.Before going out, he took a rare look in the mirror again, and adjusted his hair and collar.

It was already dark outside at this time, and the library would have been closed long ago if it was usual, but today a staff member was specially reserved for them, lighting a small dim lamp in the building.

Fang Haochen walked into the reading room, as he expected, he saw that there were several fewer people when he glanced over, and there were only five people left including Lu Yongan.

Fang Haochen searched around, but there was no sign of that strange man, somewhat disappointed.Did you go to the bathroom?he thinks.

Fang Haochen walked over and asked Yuan Youbing in a low voice: "Where is that person?"

"Which one?" Seeing him coming, Yuan Youbing stood up, shook his numb legs, stretched his waist, and prepared to change shifts with Fang Haochen.

"It's the one in the suit." Fang Haochen said, wondering why Yuan Youbing couldn't notice such an eye-catching person.

"Ah, he," said Yuan Youbing with some strange expressions on his face, "he's gone."

"Gone?" Fang Haochen was a little surprised, "When did you leave?"

"I've been gone for about two hours." Yuan Youbing said, then suddenly scratched his nose and coughed twice, "Before he left, cough, I have something for you."

Fang Haochen, who was still full of disappointment just now, regained his spirits when he heard this: "What is it?"

"This..." Yuan Youbing secretly took out something from his pocket, but he didn't dare to take it up, so he blocked it with his body and handed it to Fang Haochen.

Fang Haochen frowned at first, but when he saw it, his face turned green.

This guy actually folded a "heart" for him with an answer sheet!

Most of Yuan Youbing's face was also red: "Hurry up, take it." His coy look was not at all his usual arrogance, but rather like a big girl from a neighboring village.

Fang Haochen took it without making a sound. When he touched the "heart", it was as if his hand had been burned. He lowered his head, without looking at Yuan Youbing, and tore the "heart" apart three times.

"To solve a problem, you need to do these things." Fang Haochen muttered, in his seemingly complaining explanation, this "heart" didn't mean anything, it was just folded by this strange man after solving the problem.

However, when he saw the content inside, Fang Haochen's heart was really on fire: the words on the answer sheet were written with a pen, and the handwriting was very similar to the pen writing in the research notes-this confirmed Fang Haochen From the conjecture just now, those pen characters really came from this weirdo.

But the content really made Fang Haochen disappointed and angry - on the left side of the answer sheet, there was a picture sketched with a pen, in which Fang Haochen was sitting on the side and looking away.

Next to the sketch is a paragraph.

"Hello, Mr. Fang:

how do i drawNot bad, right?

You always have a straight face, so it is really not a challenge to draw.

I wanted to hand over this painting to you in person, but I waited until very late and did not see you come back.I have to play cards in a while, so I have no choice but to let this gentleman do it for me.

By the way, Mr. Fang, can you play cards?If you have a chance, you can compete with me, my card skills are quite top-notch. "

The signature is his name, "Bian Yu".

Fang Haochen took this piece of paper and looked it over and over twice: "It's gone?"

"Ah." Yuan Youbing nodded.

Outrageous!

Fang Haochen threw the answer sheet into a ball angrily and threw it on the ground. He was disappointed as much as he had expected for the "pen writing" before. He was wrong. The talent he thought was not a talent at all, but a person. Flirty bastard!He turned out to be the same as those mediocre people who gave up and left, no!He is not as good as them!He spent more than two hours in vain just to draw such a picture and write such words!

Fang Haochen walked quickly to Lu Yongan and the remaining students: "Go back!"

When he said these words, several people raised their heads, and one of them was still grinding the unfinished straw paper anxiously, looking at Fang Haochen, as if saying: "The time is up so soon?"

Fang Haochen became even more angry, he actually wasted so much of his time for such an apprentice!

"Yes, it's time." Fang Haochen didn't want to see these people again for a moment, he picked up the research notes on the table in front of him and stuffed them into Lu Yongan's bag indiscriminately.

However, at this moment, a crumpled tissue fell to the ground.

When the tissue paper fell to the ground, there was no sound at all. Fang Haochen's heartbeat seemed to have stopped when he saw the blurred pen writing on the tissue paper.

He quickly knelt down and picked up the tissue paper. Even though the writing on the pen was blurred, Fang Haochen could tell that this was the answer to the question he asked, and it was the answer to two questions!

Fang Haochen held the piece of paper like a treasure, looked at it over and over again, and figured out Bian Yu's thinking about solving the problem, which made him, the person who wrote the problem, suddenly feel enlightened!Fang Haochen paced back and forth in the reading room uncontrollably for two and a half hours!It took Bian Yu just two and a half hours to solve these two problems that took [-] hours to solve!And exactly!

No, not two and a half hours.He also spent at least half an hour drawing that stupid painting, that is to say, Bian Yu solved these two problems in less than two hours!

"Director Lu, where is Bian Yu? Take me to find him." Fang Haochen knew that his eyes must be shining with excitement right now.

"Bian Yu?" Lu Yongan paused, "You want him?"

"Yes, I want him." Fang Haochen said.

But Lu Yong'an faltered: "Director Fang, I'm not a petty person... But if you want Bian Yu, it might really not work..."

Hearing this, Fang Haochen's excited heart cooled down a little. After he thought to himself, he frowned slightly: "Does he have political problems?"

"Uh..." Lu Yongan looked quite embarrassed, "It's not a political issue, he...has a mental illness."

"What disease?"

"Bian Yu...he likes men."

Note:

At that time, good-quality paper was still quite rare, so Bian Yu drew on the answer sheet after getting it, but Fang Haochen only gave everyone an answer sheet, and after Bian Yu drew the picture, he could only draw on the answer sheet. I answered the questions on paper, but I was afraid that the tissue paper would be blown away by the wind, so I put it under the research notes.