Genius Girlfriend

Lin Zhixia and Jiang Yubai have made an appointment, and she will visit Jiang Yubai's home on the first Saturday of March. She wants to win the 2007 Romanian Mathematics Masters Championship, and then bring back the gold medal to Jiang Yubai.

"I'll wait for you." Jiang Yubai replied.

Lin Zhixia suddenly thought: "Jiang Yubai, during the time we are apart, I will write down my daily experience in my notebook until I come back..."

Before Lin Zhixia finished speaking, Jiang Yubai had guessed what she meant: "We will record our own experiences separately. When you come back, we will exchange notebooks."

"Yes!" Lin Zhixia was elated, "We exchanged notebooks, it is equivalent to that we exchanged each other's memories, it is equivalent to that we did not separate."

Jiang Yubai was convinced by Lin Zhixia's strict logic.

In order to express his support and affirmation, he took out two notebooks from his schoolbag. Lin Zhixia took one of the notebooks and wrote on the title page: Captain Lin Zhixia's interstellar treasure hunt.

Jiang Yubai wrote in another notebook: The long waiting history of the leader Jiang Yubai.

The five words "Long Waiting History" faintly reveal the sadness and loneliness of "Chief Jiang Yubai". However, "Chief Jiang Yubai" is an indomitable hero. He should not feel the slightest loss and frustration.

Just as Jiang Yubai wanted to cross out this line, Lin Zhixia added a sentence beside his handwriting: The experience of guarding the spacecraft.

Lin Zhixia said every word: "Jiang Yubai and Lin Zhixia are always good friends."

Jiang Yubai put away his notebook. He was not accustomed to recording daily life, but he decided to make a short change-he decided to briefly summarize the trivial things that happened from eight in the morning to eight in the night in chronological order.

During Lin Zhixia's training for the national team, Jiang Yubai became the acting squad leader of the second (17th) class. He kept the class order in an orderly manner and summarized in his diary: Lin Zhixia, there are three main things today, please know. The first thing is that the second (seventeen) class of junior high school won the red flag of health again. The second thing is that Teacher Zhang gets married next week. He sent wedding candy to the class. You are not at school and there is no wedding candy. When you return to school, I will supply you. The third thing...

Jiang Yubai was going to tell Lin Zhixia that in the February exam, he got perfect scores in both math and English, and his total score ranked first in the grade. However, he changed his mind and thought again, does Lin Zhixia care about the results? In her eyes, all students in the second grade should be similar.

Jiang Yubai put down his pen, Duan Qiyan yelled, "Jiang Yubai, what are you doing?"

Duan Qiyan saw the words "Lin Zhixia" in the notebook. He quickly approached Jiang Yubai and interrogated, "Jiang Yubai, what are you writing to Lin Zhixia?"

Jiang Yubai concealed: "Work report."

"Work report?" Duan Qiyan was dubious.

"Yes," Jiang Yu said without changing his face, "I, as the deputy monitor, report on my daily work."

Jiang Yu fell behind in the vernacular, and all the students nearby heard it. Everyone rushed to him and asked enthusiastically: "Lin Zhixia is in the national training team, does she still miss the classmates in our class?"

Art Committee member Tang Tingting answered: "That's for sure! Lin Zhixia was originally the monitor of our class."

Tang Tingting pulled Duan Qiyan away and sat beside Jiang Yubai—that seat should belong to Lin Zhixia. Jiang Yubai's territorial consciousness instantly awakened. He pretended to remind Tang Tingting casually: "Your seat is in the front row."

"I know," Tang Tingting raised her voice, "Jiang Yubai, don't just write about official affairs. It's boring to do official business. It's so boring. You have to write about the private affairs of your classmates appropriately. Lin Zhixia will definitely love it."

"No," Jiang Yubai sternly refused, "She doesn't like to watch."

Tang Tingting still insisted: "She loves to watch."

Jiang Yubai said: "You don't know her."

Tang Tingting retorted: "I am a girl, and Lin Zhixia is a girl. I know her better than you."

Subsequently, Tang Tingting instructed in detail: "You write, this month, Tang Tingting's composition won an award in the city."

The students onlookers burst into laughter. Duan Qiyan ridiculed directly: "Tang Tingting, don't you just want to let others know that your composition has won a prize in the city? Lin Zhixia has won a national award. She will care about your composition prize in this city?"

In September last year, Duan Qiyan and Tang Tingting acted as a couple in the drama "Variation". There are a few good people in the class, who always pair Duan Qiyan and Tang Tingting together. They jokingly called Duan Qiyan a "person with a family" and often took the lead in making noise in the class.

Duan Qiyan was very angry. The bad relationship between him and Tang Tingting is obvious to all.

Duan Qiyan thought to himself: Jiang Yubai and Lin Zhixia are truly inseparable, why no one talks about them?

Soon, Duan Qiyan forcibly fabricated a reason-just because of Lin Zhixia's unattainable competition results, everyone did not regard Lin Zhixia as a person. Lin Zhixia is in the second (seventeenth) class of junior high school, like a **** who does not eat fireworks. It's too late for everyone to visit her, so how dare to laugh at her?

Duan Qiyan firmly believes that the reason why he has a relationship with Tang Tingting is because he is not strong enough. If he is strong enough to surpass Lin Zhixia, then, in the second (seventeenth) class of junior high school, he can be aggressive and no one dares to provoke him.

Duan Qiyan propped one hand on the desk, a little closer to Tang Tingting. A few classmates around secretly laughed, the delicate feelings of adolescence were sprouting around him, and he said viciously: "Jiang Yubai, you should tell Lin Zhixia quickly, after she comes back, she must rectify the class and eliminate the unjust. gas!"

Jiang Yubai closed his notebook: "What's bad in the class atmosphere, just tell me. I'm the acting monitor."

Jiang Yubai is such a powerful official.

Duan Qiyan gave in unconsciously.

Just like redressing grievances in front of the official, Duan Qiyan lowered his eyebrows and said with shame, "That's it, the crew of "Variation"..." Half-talking, he and Tang Tingting met.

Tang Tingting raised her eyebrows rather displeased, and Duan Qiyan's face suddenly changed, flushing, like the brilliant glow of the autumn evening.

Tang Tingting has a line in the play "Variation", calling Duan Qiyan "husband". Last September, Duan Qiyan felt nothing. In February of this year, he recalled that scene again, and the whole person didn't feel good.

Probably because he was fourteen years old and began to pay attention to his own fame.

Duan Qiyan said after a battle between heaven and man, "There are always a group of **** in the class, can you take care of them?"

Jiang Yubai nodded slightly, and replied: "Whoever makes a fuss again, just tell me. Lin Zhixia has gone to the national team for training, and I will help her build the class style."

Jiang Yubai stood up from his seat and clarified his point of view. He wants everyone to pay attention to the limits of joking. He said that respect is mutual and the class belongs to everyone. Everyone nodded and said yes, very approving of Jiang Yubai's remarks.

Jiang Yu Baisheng is good at speeches. He is clear-cut, clear-cut, and his tone is calm and powerful, which makes people want to listen to his advice. He is as reasonable and fair as Bao Qingtian. He calmed down the rumors in the class and returned Duan Qiyan to his innocence.

Duan Qiyan even felt that Lin Zhixia's handling methods were not necessarily better than Jiang Yubai's.

However, Duan Qiyan still hopes that Lin Zhixia will come back soon. Although Jiang Yubai has a hand in the governance class, he is not Lin Zhixia after all. He can't sit firmly in the first place in the grade, and occasionally loses to Jin Baihui in Class 18.

Jin Baihui from Class 18 is really a thorn in Duan Qiyan's heart.

He sincerely hopes that Lin Zhixia's test results will always be better than Jin Baihui.

At this moment, Lin Zhixia is participating in the national team training.

The training camp lasts two weeks and there are four exams during the training. Lin Zhixia made up his mind to participate in international competitions. She takes every exam seriously and dare not make mistakes.

The management of the math training team is relatively loose and not harsh. In the classroom, the attendance rate of the auditors is extremely high, and some members of the training team often absent from class-they can be called "the dragon sees the head but not the end", and only show up during the assessment.

Sure enough, true masters have their own style.

The masters of mathematics competitions all over the country gathered together. Lin Zhixia’s biggest feeling is that top students basically have self-planning and are busy with their own affairs, and there is no time to care about others too much. Especially those students who are going to go abroad should pay attention to foreign universities, organize application materials, review TOEFL and sat.

Some students in the training team have received admission notices from Cornell, Stanford, and Princeton University.

Lin Zhixia admired them very much. But she never took the initiative to strike up a conversation with others. She always follows Luo Ying's side.

Lin Zhixia and Luo Ying live in the same dormitory. Luo Ying is the last place in the training team, so she works very hard. Every night, Luo Ying had to learn in the study room until eleven, and then walked into the dormitory lightly, and Lin Zhixia had fallen asleep.

Lin Zhixia likes to sleep on her side, holding a little penguin tightly in her arms. At this time, Luo Ying would remember that Lin Zhixia was only eleven and a half years old this year, and she was still a little girl who had not grown up. She was rampant in the maths arena and was still cautious in her life.

The learning tasks during the training camp were arduous, Luo Ying felt quite strenuous, and Lin Zhixia's condition was not very good. She had never left her parents for that long since she was born. After a week of training, Lin Zhixia was very homesick. She was in a trance during the day and night, dreaming of her parents and brothers.

Even so, she persisted, and was among the best in four exams.

A group of students with the best exam performance will have the opportunity to participate in the second round of training in March and represent their country in the 2007 International Mathematical Olympiad in this summer.

The Romanian Mathematics Masters in 2007 will be held at the end of February this year.

The Romanian Masters of Mathematics includes team awards and individual awards. Each country can send four official players and two alternate players. When calculating the final score of the team, the player with the lowest score will be eliminated, and the total team score is equal to the sum of the scores of the other three players [1]. This cruel competition system has tested the psychological quality of the players and also tested the cohesion of the team.

Originally, according to the teacher's intention, they were going to send a provincial team to fight. However, considering the fierce competition in the Romanian Mathematics Masters this year, the teachers organized a voluntary trial. Lin Zhixia was not unexpectedly selected as the official team member.

Official players!

Lin Zhixia is going to take an exam abroad!

After returning to the provincial capital, Lin Zhixia still had a week to prepare. Accompanied by her parents and teachers, she quickly applied for documents. This is the first time she has gone abroad in her life, and her mother seems very worried about her. For two consecutive nights, my mother did not sleep well, and dark circles fell in her eyes.

Lin Zhixia noticed her mother's dark circles. She grabbed the corner of her mother's clothes and promised: "Mom, Mom, I will go home immediately after I stay in Romania for a week."

Her mother hugged her and said, "Xia Xia is only eleven years old."

"In September this year, Xia Xia will be twelve years old." Lin Zhixia added. She raised her head and looked at her brother.

My brother's face is even worse. He grabbed an apple and gnawed a few bites before asking, "Where is Romania?"

"Southern Europe." Lin Zhixia replied.

"Is it safe?" My brother frowned tightly.

Lin Zhixia nodded: "The team leader took us. It should be safe. My school sister Luo Ying, she will go with me. She is a substitute in our team."

"Are Luo Ying's academic performance very good?" My brother asked again.

Lin Zhixia euphemistically described: "Brother, our team is not the strongest in the training camp. The most capable and experienced group of players will focus on the International Mathematical Olympiad in July."

The brother took a deep breath and couldn't even eat the apple.

He paced back and forth in the cramped living room, like a worried old cadre. He even said: "Lin Zhixia, there are substitutes in your team, so just give up the game."

Lin Zhixia was dumbfounded: "Why should I give up?"

"You are too young," my brother recounted with justification, "I don't worry about you when you go abroad alone. Which family can go abroad when a child is eleven?"

Lin Zhixia said seriously: "This is not my problem, it is my brother's problem. My brother must overcome his inner fear."

She even called out her brother's full name: "Lin Zeqiu, I have signed up for the competition, and I absolutely cannot escape. This is not a chess game at the gate of the community. You can run if you want. This is the Romanian Math Masters 2007, and I am determined to win. To take a gold medal, I want to get an individual gold medal and also a group gold medal."

Lin Zeqiu was shocked by her aura and ignored her holding strawberry yogurt in her left hand and a stuffed penguin in her right hand.

After Lin Zhixia spoke some bold words, she turned around and went to the bedroom to pack her things.

Every winter vacation, Lin Zhixia stayed in her hometown for a week, and her parents had long bought her a suitcase. She threw the clothes into the box, and her brother suddenly stood by her side: "You don't know how to fold clothes at all."

My brother is already fifteen years old. Although Lin Zhixia is also trying to grow taller, her brother is still a lot taller than her. She could only raise her head and stare into his eyes, and saw that his eyes were full of complex emotions, which was terrifyingly serious.

He chattered like Xianglin's wife and asked: "Romania, in southern Europe, is a small country, is it safe?"

"Safe." Lin Zhixia gave a positive answer again.

Lin Zeqiu sat on the floor and took the initiative to help her pack up. He is good at organizing clothes and folding them meticulously. His fingers were slender, pressed tightly against the edge of the box, and said to himself: "If you encounter an emergency abroad, remember to run to crowded places and don't be caught by bad guys. A few days ago, I I saw a story in a magazine."

Lin Zhixia squatted next to her brother and asked curiously: "What story?"

"Horror story." Lin Zeqiu's voice became deeper and deeper.

He told in detail: "There is a man who recently married his wife and went to Thailand for his honeymoon. His wife was changing clothes in the fitting room, and her husband was waiting for her outside the door. After waiting for a long time, his wife did not come out..."

"Then what?" Lin Zhixia was more curious.

Lin Zeqiu stared at her intently: "There is no one in the fitting room, the woman disappeared, and the man can’t find his wife no matter how he finds it. After a few years, the man went to Thailand again, just in time. Encountered a circus performance. There was a disabled woman in the circus. Her hands and feet were cut off. She had no tongue or ears. She was locked in a cage like a meatloaf. The disabled woman saw this man, crazy. Crying, the man suddenly noticed that the birthmark on this woman was exactly the same as his missing wife."

Lin Zhixia's breath froze.

Lin Zeqiu was afraid that she would not understand, and patiently explained to her: "The man took his wife to Thailand. His wife was taken away in the fitting room and sold to the black market in Thailand, where he was cut off. I dug out my tongue and ears with my feet and made it into a human... Renyi, do you understand? You must have read "Historical Records." The Queen Lu of the Han Dynasty didn't cut Madam Qi into a human."

Lin Zhixia was calm for less than a second, and ran out of the bedroom. She pounced on her mother like a kitten returning to her nest: "Mom, Mom, you hug me."

Mom asked her: "What happened to Xia Xia?"

Lin Zhixia complained: "Brother told me a scary story just now."

Lin Zeqiu watched this scene, slanderously said: She is really a stalker.

Lin Zeqiu knew that Lin Zhixia had little courage. During her race in Romania, it is best to stay in the hotel honestly and not go anywhere. As long as she can understand Lin Zeqiu's profound meaning, Lin Zeqiu is willing to tell her a thrilling travel story every day.

The night before Lin Zhixia's departure, her parents and brother had insomnia.

Early the next morning, my brother wore dark circles and called Lin Zhixia to get up. At that time, it was more than five o'clock in the morning. Lin Zhixia woke up for a while, and said happily: "Brother, I will bring you a present!"

My brother was shocked: "Don't, don't buy gifts."

Lin Zhixia tilted her head: "Why can't you go?"

My brother analyzed: "If you want to buy a gift, you will go out. You may go out alone and get lost in Romania, where you are not familiar with your life. The bad guys will take you away with a sack and throw you into the van.

"Really?" Lin Zhixia expressed doubt.

Last night, Lin Zeqiu thought about this issue, thinking about it all night. He has never been abroad, or even the province. The unknown country in his vision is extremely cruel and terrifying. And his young, weak, naive, and conceited sister will suffer in a foreign country. As long as he thinks of the grievance Lin Zhixia may have suffered, his throat and heart will involuntarily become sore. It is really a torture that is indescribable.

How much housework did he do to get Lin Zhixia up.

He couldn't tell his own mental journey. He just said: "The gift is not important, you just bring the person back."

"I will definitely come back." Lin Zhixia said naturally. She slept soundly last night and had a sweet dream. She dreamed that her life would be better when she grew up and reached twenty years old.

At around 7 o'clock that morning, Lin Zhixia, with anticipation, met with her comrades in arms at the airport.

She saw Luo Ying at first glance. She dragged the suitcase and ran towards Luo Ying, shouting as she ran, "Senior Sister, Senior Sister!"

The senior sister stretched out her hand: "Let's go, let's check in our luggage together."

Lin Zhixia held her hand: "I've never taken an international flight. Have you ever taken a senior sister?"

"I've been sitting many times." Luo Ying replied.

Luo Ying's passport was stamped with many stamps. It turned out that she had traveled to Europe with her parents. She passed the customs and security inspection calmly, and was thoroughly familiar with all procedures. Lin Zhixia took her as a role model, and the seat of her choice was next to her.

Perhaps it was because Lin Zhixia was so excited when he took a long-distance flight for the first time. After nightfall, she was so sleepy that she couldn't sleep. She lay on her back in the seat, on her side, and with her legs curled up, but it still didn't work. Luo Ying simply pushed the armrest up and said softly, "Let you rest on my lap."

"No! Absolutely not!" Lin Zhixia shook her head frantically.

Luo Ying sighed. There is a cherry blossom in her name, "Sakura", and her body has a light rose fragrance. The fragrance made Lin Zhixia relax his guard. Luo Ying stretched out her hand again and touched Lin Zhixia's head—Lin Zhixia immediately thought of her brother. How to do it? She had only left home for a day, and she had already missed her relatives.

Luo Ying whispered softly: "You are so young, and you don't sleep all night, how uncomfortable tomorrow will be."

Lin Zhixia rubbed her eyes, "It's okay."

Luo Ying revealed: "I promised Teacher Zhang and Teacher Sun to take good care of you."

"Has my teacher Zhang, my teacher, ever called you?" Lin Zhixia asked in surprise.

"I have looked for it," Luo Ying told her, "Ms. Zhang said, you skipped the exam and you were younger than an ordinary student. He asked me to take care of you."

Lin Zhixia did not expect that so many people were silently caring for her. She fell aside and fell on the senior sister's lap. About two seconds later, Lin Zhixia sat up straight and said firmly: "Thank you, senior sister, I have already felt the kindness of senior sister. If I rested on your lap, you would be very uncomfortable on the plane. "

Lin Zhixia turned her face and looked at Luo Ying: "Teacher Zhang, please take care of me. I think the care should be mutual."

Luo Ying raised her finger and wiped her chin: "Well, when we get to the hotel, we will be able to sleep well."

"Yeah." Lin Zhixia agreed. She spent more than ten hours on the plane, and finally waited until the plane landed.

The host of the Romanian Masters sent a pick-up staff. On the way to the hotel, Lin Zhixia fell asleep in the car. The teammates were all admiring the streetscape of Romania. The roads and buildings were full of classical European style. The church located on the street showed the characteristics of Orthodox Church. Luo Ying couldn't help but took a few photos.

The hotel they stayed at was called "moxahostel".

The buffet breakfast provided by moxahostel made Lin Zhixia very excited. All kinds of sliced ​​ham and bread are lined up, and the glass bowl contains delicate small cream cakes-each cake is topped with a strawberry. Lin Zhixia must praise the chef, strawberry and cream are a perfect combination.

Lin Zhixia ate two cakes and the whole person came alive. Strawberry is her lifelong love and her lifelong medicine. She may have been a strawberry essence in her previous life, and she needs to add more sources of life in this life.

After eating breakfast, Lin Zhixia returned to the room and fell asleep again. When she woke up at half past one in the afternoon, Luo Ying called her to eat lunch. They met many contestants from other countries in the restaurant.

Lin Zhixia shuttled through the teams of different countries, and various languages ​​floated by her ears, stimulating her brain. She heard German, French, English, and Russian. And her teammates sat around a table and waved at her from a distance.

She ran to her teammate and asked, "How are you resting?"

One of her teammates came from an experimental high school in a neighboring province, named Du Cunkang. Du Cunkang studied Mathematical Olympiad since childhood and received very professional training. He is seventeen years old and has won gold and silver medals in the National Mathematical Olympiad. He is best at solving geometry problems and is also one of the favorites to win this year.

While eating, Du Cunkang answered Lin Zhixia's question: "I didn't sleep for two consecutive days and it didn't affect my exam."

"Not sleeping for two consecutive days?" Lin Zhixia asked in surprise, "Don't you feel dizzy?"

Du Cunkang has a square face and a pair of black frame glasses. The way he holds his glasses is very special. He spread his fingers, pinched the sides of the frame, gently pushed upwards, and said, "No matter how tired, sleepy and dizzy, as long as I enter the examination room, I will be sober.

Du Cunkang was telling the truth. Luo Ying echoed: "Me too."

The other two full members of the team and an alternate member also said: "Everyone is like this."

Lin Zhixia felt incredible—her situation was completely different from everyone. If she doesn't sleep well, her calculation skills will become worse and her brain will be weak.

Sure enough, IQ is not the only criterion for evaluating ability!

Ordinary people also have many strengths!

Lin Zhixia must not underestimate the enemy.

She secretly made up her mind to eat faster than usual. Although she wanted to strike up a conversation with players from other countries, she didn't know what to talk to them-if she asked someone to talk about mathematical theory, it might bring invisible competitive pressure, which is not in line with Duan Qiyan's "competition". Demeanor". If she finds someone to do philosophical speculation, no one may want to talk to her. If she asks about the customs of various countries, she is obviously looking for words.

After some ideological struggle, Lin Zhixia decided to remain silent.

Silence is the safest route. Silence is the safest seaport.

After she ate two bites of rice, Du Cunkang suddenly called her: "That person is here. I'll show you that person..."

Lin Zhixia looked up blankly: "Which person?"

Du Cunkang pointed forward: "Russian player, his name is a long list, we call him alexandrov for short."

Lin Zhixia repeated: "alexandrov?"

Du Cunkang's eyes never looked away from a distance. He said: "Alexandrov is a Russian mathematics genius who has been in the newspaper, don't you know, Lin Zhixia?"

In the past six months, Lin Zhixia has rarely had newspapers and magazines. The team leader did not tell them how strong the Russian players are, and Lin Zhixia has no idea about Alexandrov.

She got up from her seat and looked forward without shy. She saw a tall Russian teenager-blond and blue-eyed, his hair was slightly longer, covering his forehead and ears, and he was more prominent in the Russian team.

"How strong is he?" Lin Zhixia asked.

Du Cunkang is a top student after all. He praised the outstanding players of the enemy camp in a plain tone: "Alexandrov junior high school published a math book."

Lin Zhixia was not timid: "I also helped my deskmate summarize the competition methods, a thick book, with various types of questions, and some of my own questions."

The players at the table were a little stunned. Question type summary, this kind of thing, everyone has done it. In the national training camp, many experts took turns taking turns to grasp the weather vane of the competition accurately. Lin Zhixia's self-reported experiences are not enough to conceal Alexandro's glorious resume.

Du Cunkang said round the field: "The team competition is a team battle, and three heads can beat one Zhuge Liang. As long as a few of us guarantee to do six of the seven questions, we can win the first place in the team competition."

The Romanian Masters of Mathematics exam is also divided into two days, with a total of six questions, each with a full score of seven. The competitor's roll score is the individual's final score.

Du Cunkang's admiration for alexandro made Lin Zhixia look forward to tomorrow's schedule.

The next morning, the organizer sent a car to take all the players from the hotel to the venue of the competition.

At nine o'clock in the morning, the Romanian Mathematics Masters officially opened.

The first two questions in this competition are not too difficult. The third question is the watershed of the gap. Lin Zhixia needs a little time to think and avoid possible misunderstandings. This gave her an ominous premonition.

After the exam, the other three people in the team looked normal. Du Cunkang was in particularly good condition. He was still chatting and laughing with everyone at the dinner table, and even deliberately went to chat with the South Korean and Japanese teams. The South Korean team and the Japanese team responded politely to Du Cunkang. Du Cunkang found that the Koreans speak Japanese well.

After some inquiries, Du Cunkang learned that in addition to compulsory English, Korean students had to choose one of Chinese and Japanese as their second foreign language. Du Cunkang immediately proposed that he could teach Korean friends to learn Chinese.

For a certain Korean friend whose surname was Jin, Du Cunkang dipped a fork in water and wrote the word "Gold" on the dining table. He communicated very happily with the Korean classmate. Speaking of the female idol group wirls, which debuted in Korea in early February this year, Du Cunkang is even more excited. He revealed a little bit shyly that he likes Korean movie star Jun Ji-hyun very much, and he wants to find this type when looking for a wife in the future.

However, the more lively and outgoing Du Cunkang was, the deeper Lin Zhixia's doubts about him. On the first day they arrived at the hotel, Du Cunkang rejected all diplomatic activities. His temperament changed suddenly today, I am afraid there is only one explanation-in order not to worry his teammates, he pretended to be relaxed and happy.

Finally, under Lin Zhixia's piercing gaze, Du Cunkang secretly confessed to her alone: ​​"I didn't do the third question. I failed the exam."

This is really bad news.

Du Cunkang's failure to make it means that their team has lost a strong player.

Before Du Cunkang set off, he was ranked third in their team.

The most difficult project of the Romanian Masters will generally appear tomorrow. If Du Cunkang can't make a comeback, then their group gold medal may not be kept.

In the warm hotel lights, Du Cunkang's face turned yellow: "I have undergone a psychological test, my mentality..."

"You have a good mentality," Lin Zhixia lowered her head and whispered to him, "The other two people in our team have made the third question. At the moment we are not at risk of losing the gold medal. Tomorrow, you have to believe me, tomorrow I will finish all the problems. Even if Alexandrov is as smart as me or smarter than me, I can tie him. You don’t have to be pressured. We are a team and we move forward together.”

Lin Zhixia is six years younger than Du Cunkang.

Du Cunkang really did not expect that Lin Zhixia could give him an elder encouragement. He held the knife and fork tightly, cutting the thin pizza. The tip of the knife made a crisp noise on the porcelain plate, and he promised: "Okay, I have no pressure."

"Yeah!" Lin Zhixia nodded.

At night, Lin Zhixia went to bed early. She has no distractions and falls asleep extremely fast. When she woke up the next day, she adjusted to her best condition and devoted herself to today's exam. As she expected last night, the last question of this exam is the most difficult finale of this year's Romanian Masters.

The original form of the problem comes from a graph theory problem. It is known that a simple graph g contains v vertices. If n edges are added, two cycles of the same length can appear in graph g. What is the lower bound of n?

Lin Zhixia remembered that a mathematics paper in 1998 discussed this issue in detail. Inspired by that paper, she wrote down her own problem-solving ideas and further narrowed the scope of the lower bound. As Lin Zhixia wrote, she sighed secretly, wondering if Du Cunkang could think of a better solution. She hoped that they could win the group gold medal through joint efforts.

She even glanced at the Russian team's Alexandro secretly.

As Du Cunkang said, the Russian team's Alexandro is strong. His thinking is smooth, and there is no anxiety or hesitation on his face. The entire Russian team has a sense of victory, but Lin Zhixia sees them with a guilty conscience.

why! The Russian team is so stable?

Can each of them get a perfect score?

Lin Zhixia made up her mind that after returning home this time, she would study Russian seriously. Know yourself and the enemy, and a hundred battles will never end.

The author has something to say:

References in this chapter:

[1] Official website of Romanian Mathematics Masters (2020 edition)

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[Next episode preview: Lin Zhixia's happy day! Visit the museum of Xiaojiang's home! 】