The sun is hot, Hanamaki has the potential to be a big brother, fierce, and won't let go.
"Isn't he fat?"
"It's up to you to say it again."
"Fat~pig~"
The children scolded each other, you pointed at me, I pointed at you, and the situation that had been eased intensified again.
Lin Chaoxi slapped the table and stood up, saying that it was too late and then quickly, Hanamaki punched Lu Zhihao in the face, Zhang Liang's mother was shocked, screamed loudly, and waved the bag and parasol in her hand, trying to smash the Hanamaki.
Lin Zhaoxi wanted to rush over there, but it was too late...
Suddenly, a burst of electronic sound screamed, the sound was high and sharp, and Lin Zhaoxi subconsciously covered her ears, but she suddenly remembered that it seemed that there was such a sound, the sound of a loudspeaker, when she was a mental arithmetic king last time.
Old Lin!
She reluctantly opened her eyes and looked towards the source of the sound. Sure enough, Lao Lin was lazily walking over on the lawn, holding a loudspeaker and wearing a management uniform.
He turned the horn somehow, the horn stopped screaming, and the notes of "Happy Birthday to you" jumped out one by one, accompanied by Lao Lin's appearance of smoking a cigarette and his free and easy posture, which was very ironic.
The children on both sides were stunned by this uncle, so they just looked at him blankly.
Lao Lin put the cigarette plug into the bunny-shaped dustbin beside him, looked at the big characters 1:0 on the ground, and asked, "Who told you to scribble?"
"They made it!" The little bastards of the experimental elementary school complained very quickly.
"Oh, clean it later." Lao Lin said something casually, turned around and was about to leave.
At this time, someone pushed who, the pupils pushed and shoved again, Hanamaki took the opportunity to kick Zhang Liang twice.
"Still beating?" Lao Lin didn't know what to do, and turned around to stop the group fight.
Lin Zhaoxi almost suspected that Lao Lin had eyes in the back of his head. When he turned his head, Zhang Liang was about to push the scroll.
She pointed at Zhang Liang and said, "Uncle Administrator, he beat people even if he lost!"
Lao Lin was also stunned. She didn't expect her to change her words quickly at first, but to sue her for being black at the second time.
"So energetic." Lao Lin smiled, "How about uncle taking you to do math problems?"
Lin Zhaoxi reckoned that Lao Lin said this because he wanted to see the children yelling "no" and "don't" and running away in all directions, but maybe she and Zhang Liang played too coolly, which aroused the children's interest in learning mathematics. Hobbies (?), no matter the children present at Experimental Primary School or Hongxing, they all looked at Lao Lin eagerly, as if they were waiting for him to come up with a question.
Lao Lin put his hips on his hips, carried a loudspeaker in his hand, and looked at each other in blank dismay with the children. The scene was embarrassing again.
"Uncle, what's the topic?" Lin Zhaoxi's good monitor, Lu Zhihao, asked very forcefully.
"What subject?"
"Tch, he's a liar." Someone from the Experimental Primary School camp shouted, "I don't understand anything."
It may also be the first time that Lao Lin was told that he didn't understand anything in mathematics. He experienced novelty, but instead he stood still and enjoyed the pleasure of being condescending in the wind, which was simply abnormal.
"Do you think they are good?" Lao Lin lowered his eyes and asked after the wind blew for a while.
"Awesome!" The children said in unison.
"Amazing ass."
Comrade Lao Lin took two steps, sat where she had just been sitting, pushed aside the 85 stones on the table, arranged 9 stones, and asked: "It's the basic subtraction, multiplication, and division quick calculation problem. Why don't you know all of them, Bash?" Bo Yi has never heard of what is being taught in primary school mathematics now."
Lao Lin complained and said, "That classmate over there who is leaving, come here and sit here."
He clicked on the stone bench opposite him, which was just now where Zhang Liang was sitting.
Lin Zhaoxi felt strange and looked around, only to find out who Lao Lin was talking about.
At the edge of the rest area, there was only one boy in sportswear with his back turned to everyone, ready to walk towards the carousel.
It was Pei Zhi.
"Pei Zhi, this bragging uncle administrator called you over!" Hanamaki shouted.
Pei Zhi was still walking, pretending not to hear.
"If you don't come here, the team leader won't give you a stamp on this Eagle Squad activity!" Hanamaki shouted again.
The figure of classmate Pei Zhi stopped, and he turned his head. He couldn't pretend he didn't hear him anymore, so he could only walk over obediently and sit down.
He lowered his head slightly, his forehead covered his eyes a little, looking very ordinary.
"Let me tell you that my classmate is amazing!"
Lin Zhaoxi was excitedly grabbed by Hanamaki.
Let me tell you that my father is also very good... Lin Zhaoxi really wanted to say this, but she looked at the two sides of the stone table, sitting quietly and looking very ordinary, one big and one small, but she didn't dare to guarantee it.
Exciting, so exciting!
"To put it simply, this two-person turn-based game is collectively called a combination game. There are several characteristics of a combination game, one or two players; two, taking turns to operate..." Lao Lin said, pointing to himself and Pei Zhi, Introduce the definition, and demonstrate, "Here, my friend, pick up a pebble.
Pei Zhi also raised his hand to take the child.
He didn't react much, just sat like this, only followed when Lao Lin asked him to move, he didn't speak, and he didn't steal the limelight. Apart from sitting upright and his wrists were much brighter than Zhang, he was very unobtrusive.
After Lao Lin introduced the definition, he began to explain the principle from the simplest number of stones. Although he has always spoken in a high-handed tone that I can barely explain to you, it is this attitude that arouses the children's dissatisfaction the spirit of.
"Does anyone know if there are so many stones, I'll take them first, and if I want to win, what kind of rules should I make?"
"4!"
"No, it's 3!"
"Can you do it?" Lao Lin asked in a drawn-out tone.
"3, that's 3!" A child rushed forward, pushed Lao Lin away, and fetched stones from the person opposite him.
"oh."
Lao Lin also played tricks, put one in deliberately and quietly, and then was pulled out by the children, who yelled at him with saliva all over his face.
"Let me see if you are careful, why are you so excited?"
He is so bad, every time he asks a question, there are many people rushing to answer it, the children's faces are red from the sun, their foreheads are covered with sweat, and the competition is very fierce.
The atmosphere is very good now, and some parents even brought their children to listen. Lin Zhaoxi looked at those little furry black heads, took two steps back, and gave up his seat to another child, who stood at the outermost edge of the crowd, squatting in the shade of a tree. Down.
Only then did she remember Zhang Liang.
Zhang Liang didn't leave, but also stood at the periphery of the crowd with his mother and talked to two other companions. He probably wanted to invite others to join the activity of the Young Eagle Holiday Team, but he didn't expect that several of the little bastards from the Experimental Primary School were attracted by Lao Lin. In the past, nobody paid attention to them.
Zhang's mother glanced at her condescendingly. Suddenly, as if her phone vibrated, she hurriedly opened her bag, took out her phone, and looked at the caller ID. Her eyes were excited, but she was not in a hurry to pick it up.
She pushed Zhang Liang and pointed to the phone: "Liangliang, the summer camp list should be out!"
Her voice was very loud, and it happened to be stuck at the pause point of Lao Lin's speech. All the children subconsciously looked at her.
Zhang's mother has attracted much attention. She picked up the phone slowly, but said very earnestly: "Hey, Director Feng, hello."
"How come, how come, you are so busy and call yourself."
"Oh, is the summer camp list out?"
"Didn't we Liangliang do well in the exam this time? I still want to thank you."
"Full score?"
Of course, Zhang Liang also has his little follower who he admires, so he quickly pushed Zhang Liang: "Oh my god! You are so amazing!"
The children who were able to play with Zhang Liang in the same group had good grades. When they heard that the results of the Jinbei Summer Camp selection had come out, they all left the stone table in a hurry, and flocked to Zhang's mother and asked, "Auntie, can you help me?" ?”
"Auntie, and me, and me, Ma Dengdeng, Ma Dengdeng!"
Zhang's mother was surrounded by students and enjoyed being treated like a star by the children. She pressed her hand, motioned for everyone to be quiet, and said "I'll ask" to the person on the phone. : "Director Feng, I'm really sorry to trouble you, I still have a few children here, can you help them ask about their grades?"
"Oh, did you ask the secretary to send it to me? Thank you so much."
Zhang's mother hung up the phone and tapped the phone with her fingertips. She was very proud. She touched Zhang Liang's head encouragingly, and said to all the children in the experimental primary school: "Wait for the activities, Auntie invites everyone to eat Hetianju's daily meal together." It is expected that Liangliang will be celebrated."
"Great!"
"Long live!"
At the Experimental Primary School, the students cheered happily, as if proud of themselves.
The atmosphere around the stone table was a little calm, only Hanamaki said silently: "You have also taken the exam, don't you want to know the result?"
"Anyway, the exams are over, so what should I do? Why are you so anxious to know the results?" Lu Zhihao was taking the test, and Lao Lin's question this time was a bit difficult, so he waved his paw impatiently.
"What about you?" Hanamaki turned to her and asked. .
Lin Zhaoxi thought it was too hot, so she squatted in the shade of a tree, raised her head and said, "I'm sure I can pass the exam, is there any doubt?"
The little Hanamaki gave a "reliance" and said, "You are really arrogant!"
In front of the stone table, Lao Lin asked Pei Zhi: "Have you gone to take the exam?"
When Lin Zhaoxi heard this, she fainted from the heat at first and didn't care. She stood up after three seconds. Why didn't you ask me, Pei Zhi, you
Little student Pei Zhi could only nod his head as he was stared at by Uncle Weird's eager eyes.
"Then should we celebrate too?" Lao Lin said.
Lin Zhaoxi became even angrier when she heard that, and strode over, just as Lao Lin called Pei Zhi, she felt something was wrong, what the hell, why did she care so much about Pei Zhi!
Dad, I am your daughter!
Lao Lin's voice was no longer casual, but serious: "In combinatorial games, there is a rather special deformation called the nim game. It seems simple, but it plays an important role in many models in game theory. It is extremely important. Classic, want to try it?"
Pei Zhi finally raised his eyes to look at Lao Lin, and seemed to feel Lao Lin's serious attitude, he also nodded and said, "Yes."
Pei Zhi only said two words, but he was countless times more arrogant than Zhang Liang.
Lao Lin smiled, and he divided the pile of stones in front of him into two parts: "The rules of victory and defeat are as follows, take stones from several piles, alternately take a certain number of stones from any pile, at least one, and take the last stone Whoever wins."
Suddenly, the group of people in Experimental Elementary School started screaming, and Zhang Liang's mother received a list message, and everyone was arguing.
"Aunt me."
"What about me?"
"Don't worry, don't worry, the list hasn't been sent yet, there is still a text message."
Here, Lao Lin briefly explained the rules and asked Pei Zhi, "Do you understand?"
Pei Zhi nodded and asked, "Should I go first?"
Lao Lin: "Is it unreasonable, you are so smart, shouldn't I go first?"
Pei Zhi didn't do anything, just said: "Let's do it again."
"OK."
Lin Zhaoxi had already stood by the stone table again, she looked to the left and then to the left, but didn't understand what was going on. However, judging from the actions of these two people resetting the stones and their reaction just now, Lin Zhaoxi speculated that the outcome of the round just now had already been decided, so the two decided to start over.
Or is it not human
"Lin Zhaoxi?"
Suddenly, she heard someone calling her name from a distance, and subconsciously glanced at it. The girl who called her name quickly turned her head, looking like she had done something wrong. People from Experimental Primary School huddled together and whispered, as if they were talking.
"It's really her."
"She's in too."
The original high-pitched atmosphere in the Experimental Primary School gradually declined, and Zhang Liang's face became even more stinky.
Vaguely, she also heard the names "Lu Zhihao, Pei Zhi..." and finally, it seemed that someone was saying "Hanjuan".
The kid Hanamaki had been undercover there for a long time. After peeking through the list, he ran back shamelessly, pushing around: "Wow, you passed the exam, aren't you happy?"
All of them held their breath for standing in front of the stone table, only Hanamaki was excited.
"Be quiet." Lin Zhaoxi restrained him, telling him to calm down.
Taking stones from several piles is very different from one pile. Now the number of stones on the table has become five piles.
On 3/5/7/19/50, Pei Zhi took his son.
This game must have a winning strategy depending on the number and the number of piles. Lin Zhaoxi is also calculating, but before she counts to the second step, Pei Zhi has already taken out 28 pieces from the pile of 50.
Lao Lin continued to add stones.
Later, Lao Lin and Pei Zhi were really fast, and the speed of fetching pieces could not keep up with their calculation speed. Lao Lin simply pushed away all the stones on the table, picked up a red brick from the ground, and wrote on the stone table. There are three numbers, representing the number of each of the three piles of stones.
Pei Zhi also picked up a broken red brick, and wrote three numbers on the table, representing the number of the three piles of stones left after he took them away.
Lao Lin also continued to write, one game ended and another game came, and the numbers on the table got bigger and bigger, but it was obvious that Lao Lin was always faster than Pei Zhi.
"Didn't uncle say you can't doodle?" Hanamaki asked weakly.
Lin Zhaoxi: "I want you to take care of it."
By the end, both had even given up writing by hand.
"1203, 351, 9901... whoever wins, I will go first."
A string of numbers was reported out, and Lao Lin sometimes asked about the rules, sometimes asked Pei Zhi to judge the winner, and sometimes reported the numbers alternately with Pei Zhi, one question and one answer, one old and one young, the voices of young and young They are not loud, or even very light, but they sound alternately, and they are very focused.
Lin Zhaoxi's calculation speed has long been unable to keep up, she can only judge the winner from the expressions of the two.
Lao Lin was still calm and composed. Although Pei Zhi's small face did not show any fluctuations in expression, he was obviously slower, and he was getting slower and slower.
Finally, at the end of the round, Pei Zhixian stopped. He looked at Lao Lin and didn't speak.
The sun no longer had the temperature at noon, and became gentle, falling on the two of them.
Lao Lin smiled: "You are definitely smarter than me, but you are also definitely slower than me. Do you know why?"
Pei Zhi shook his head.
Lao Lin: "Then you want to know?"
"I want to know." On the opposite side of the stone table, the boy put his hands on the table, his voice was still childish, but his eyes were bright, serious like an adult.
…
later.
Later that day, they stayed to clean the amusement park because Lao Lin took Pei Zhi to learn a new game with them.
They ended up staying and cleaning the playground equipment together.
Tidy up the rest area, wipe the railings, sweep the floor...
The setting sun is getting redder and redder, dyeing the clouds pink.
Lin Zhaoxi didn't know what Lao Lin found in Pei Zhi. To be honest, that level of communication seemed to her to be separated by a layer of fog or a mountain.
Or it was the sympathy of geniuses for geniuses; or it was Pei Zhi who let Lao Lin see his former self; or, only people like Pei Zhi, Lao Lin felt it was worth teaching.
Lin Zhaoxi couldn't figure it out either.
They said goodbye at the gate of the empty playground.
"See you at the summer camp then." Hanamaki waved at her and blinked, her face was soft and easy to pinch.
"En." Lin Zhaoxi stretched out her hand and squeezed it.
"We beat Zhang Liang together in the summer camp!" Hanamaki laughed.
"He's not that important anymore." Lin Zhaoxi stood with Lu Zhihao and said to Hanamaki and Pei Zhi.
Pei Zhi nodded, and said in a rare way: "Goodbye."
"See you at summer camp."