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Lin Yi followed the elevator, and the elevator stopped at the twenty-second floor.

"I live on the twenty-second floor, and one level above is the recreation area of the blue ocean of the sun, and your two students can go up and play later. ”

Gu Lao got out of the elevator, walked to the door of a room, and pushed the door open: "Come in." ”

Inside the door, the room is large and spacious, belonging to the layout of one bedroom, one living room and one bathroom, and the floor-to-ceiling windows can see the street view and the city lights flickering.

The ground was covered with a very thick lamb blanket, and when you stepped on it, there was a very soft feeling.

"Lao Liu, in fact, I really didn't say you, if you don't have a dead brain, why do you always have trouble with yourself, isn't it good to go to Yanjing with me to be a professor?" Gu Lao entered the room and went to make a pot of tea.

"Don't talk about this, you also know the purpose of the main visit this time. Old Liu Tou shook his head.

"You know, you two, come over first. Gu Lao nodded and greeted Lin Yi and Liu Luran.

Then, Gu Lao took out a stack of scratch paper and two pens from his bag, and then, he picked up the pen, sat at the table, and after thinking about it, he picked up the pen and quickly wrote down three questions on the paper.

"I don't know how the math of the two students you brought is yet, so let's do this problem first, three questions. Gu Lao gave the title to Lin Yi and Liu Luran respectively.

Lin Yi, who took over the question, quickly glanced at it.

"To be honest, I don't know what the topic of the Olympiad is, these three questions are written out to judge your mathematical ability, if you can do two problems, I will talk to you about the problem solving ideas of the Olympiad. Gu Lao glanced at the time: "I'll give you an hour and a half." ”

After speaking, Gu Lao walked towards Lao Liu: "Let the two of them write questions there, we two old guys haven't been able to kill a good game for a long time, I'm ready to play." ”

As Gu Lao spoke, he rubbed his hands and took out a pair of chess pieces from the cabinet.

"You, you, you're just not convinced when you lost to me before, right?" Seeing chess, Lao Liu Tou had a rare pleasure.

"That's not it, I haven't eaten well for several months since I lost to you last time, this time, I will definitely kill you on your back!"

The two sat down and played chess.

Lin Yi held a pen in one hand and looked at the three questions in front of him.

The first question is about the use of trigonometric functions, the second is the structure of a sequence, and the third is a set architecture that integrates inequalities and a probabilistic methodology of conic curves.

Three questions, from easy to difficult.

Lin Yi did not hesitate, thought for a moment, then picked up the pen and began to write and draw on the manuscript paper.

Liu Luran, who was sitting opposite Lin Yi, glanced at Lin Yi.

The difficulty of these three questions is not low, and when she saw Lin Yi's serious face solving the problem, Liu Luran had to admit that she was still a little surprised in her heart.

Lin also got a high score in the previous set of math problems in school, and then qualified for the Olympiad, which has always been a mystery in Liu Luran's heart.

She couldn't imagine why Lin Yi's math scores suddenly rose and stood out from the crowd, and this time he was brought by Lao Liu Tou to find Gu Lao and became a dark horse.

But soon, Liu Luran abandoned the distractions in his head and began to solve the problem.

Gu Lao and Lao Liu Tou over there were drinking tea and playing chess, and it was difficult to solve the killing.

Gu Lao glanced at the two people sitting on the other end of the question, lowered his voice, and looked at the chessboard: "I haven't seen you bring students to me before, why did you make an exception this time?"

"It's rare to meet a good seedling, how much can help is a handful, I have patronized teaching all my life, and when I am about to retire when I am old, I find that there seems to be something missing. Old Liu Tou picked up a horse and flew the cannon on the opposite side.

"It's really rare, and there is actually a little guy who can become a good seedling in your mouth. If the two of them are really that talented, why don't you give them to me? I can still speak well in the Huaqing Mathematics Department, and when the time comes, I will press the score and let them in, or after taking the provincial Olympiad math exam, I will work harder, send them to the national math Olympiad to get a ranking, and then recruit them directly?" Gu Lao picked up a car and went forward to eat a pawn.

"It depends on whether they want to or not. Lao Liu Tou shook his head slightly: "Their path is always their own choice, and I can only help the staff at most." ”

After speaking, Lao Liutou's horse went one step further and landed directly in front of the opposite handsome.

General, pump.

Gu Lao's face was solemn for a while: "That's not good, I think it, a good seedling must have the treatment of a good seedling, but I don't know if it's a real seedling or a fake seedling, do mathematics, diligence determines the lower limit of achievement that can be achieved, and talent determines the upper limit." ”

"It's your turn, don't think I'm going to make you regret your chess if you put on such a serious look, hurry up, don't talk nonsense. Lao Liu frowned, not angry.

"Alas, why are you so impersonal, you have been friends for many years, and you refuse to let go of a single chess. Gu Lao was a little discouraged and abandoned the car to protect the handsome.

Old Liu Tou took the opportunity to cross the river with a pawn on the right.

"There is no way back when the pawn crosses the river, I don't know how long I can live, I can eat you one more chess piece, win one more game of chess, that is naturally excellent. Old Liu Tou laughed.

Over there, Lin Yi put down the pen in his hand.

Two minutes after Lin Yi put down the pen, Liu Luran also put down the pen.

She exhaled a breath of turbidity and raised her head, only to find that Lin Yi in front of her didn't know when he had stopped answering the question.

"Done?" Liu Luran was stunned and asked.

"Hmm. Lin Yi nodded and stood up.

The two of them took the question to the two old men who were fighting over there.

Seeing Lin Yi and Liu Luran coming over, Gu Lao first waved his hand and signaled them not to speak, and then started a final fight with Lao Liu.

On the battlefield, the battle was fierce.

In the end, Lao Liu Tou forced Gu Lao's handsome man to death in the palace with two pawns.

"Alas, this game is unjustly lost. "Gu Lao's eggs hurt for a while, if the car didn't die just now, there was still a chance to fight, and now that the chess is in the middle game, there is no way to kill even the two pawns.

Old Liu Tou just smiled and didn't speak.

Gu Lao raised his head, looked at Lin Yi and Liu Luran who were standing there, and then looked at the time.

"Forty-five minutes, are you done?" Gu Lao was stunned.

Seeing Lin Yi and Liu Luran nodding, he took the answer sheets of the two people and looked at them.

First, he roughly swept the answers to the first two questions of the two, and then looked at the answers to the third question.

Gu Lao's eyes gradually brightened, occasionally a little contemplation, and finally a little more approving look.