Genius Girlfriend

Growth means learning to choose.

Every different choice may bring different results.

Jiang Yubai spent a few minutes in silence, and his mother asked him softly: "Do you want to study economics? Just like your father."

"I do have this tendency." Jiang Yubai answered cautiously.

Mother sat in front of him and talked to him: "You must prepare early next year when you are in high school. In addition, your grandparents plan to stay in Beijing for a year. Your father also wants to run to Beijing frequently. You can consider Let’s take a look at Beijing’s International High School. Take the time to choose a school, and then tell us the result after you choose."

Jiang Yubai agreed casually. He values ​​his future development very much, and he also has a rough early plan.

He was full of fantasy about mathematics and physics. However, over the years, he found that he was not suitable for long-term exploration in the field of basic science. He can maintain a good grade in the competition class of Provincial No. 1 Middle School because he has a dedicated tutoring team. If he is allowed to rely entirely on his own abilities, he will definitely learn very hard, perhaps every night in the middle of the night.

Jiang Yubai made up his mind that he would choose an economics major in the future. He followed his father's old path and fumbled forward, which is undoubtedly the safest way.

Early the next morning, before going to school, Jiang Yubai said to his family: "I have determined the direction of the university."

Dad shook hands with him to cheer for him.

The uncle said with approval: "Xiao Jiang, you learned how to plan ahead."

Jiang Yubai didn't elaborate. He hasn't figured out where to go to high school.

Most of the students in the third (seventeen) class want to enter the provincial first high school competition class. Jiang Yubai's interest in competitions is declining year by year. He seems to be standing at a fork in the road in life, and many factors can affect his final decision.

In the morning class, Jiang Yubai pretended to accidentally reveal: "I am choosing a school."

"Choose a school?" Lin Zhixia repeated unconsciously.

The curtains in the classroom floated slightly, staining Lin Zhixia's desk. Lin Zhixia sat by the window, turned around and closed the curtains together, forming a roll. She guessed: "Jiang Yubai, are you going abroad to study high school?"

"No," Jiang Yubai explained immediately, "it's too early to go abroad now."

Lin Zhixia smiled and said, "But when you were six, you went abroad to study in elementary school."

Jiang Yubai opened the zipper of his schoolbag and took out a Romanian egg. He put the egg on the desk and rolled the eggshell around before saying: "I might go to an international high school."

Lin Zhixia nodded: "I want to go to Peking University."

They exchanged their plans for the future quite tacitly, and neither interfered nor influenced each other.

The classroom was full of students reading loudly, but the space Lin Zhixia and Jiang Yubai were in seemed to be suddenly quiet. Even if they are still at the same table now, they have imagined a separation in the future.

"I will also participate in the informatics competition this semester..." Lin Zhixia lowered her head, "I can't quit halfway because I have two teammates. If I quit temporarily, their efforts will be wasted."

Jiang Yubai sensed her loss and hurriedly encouraged her: "Don't quit. Life is a process of experience, you must go forward bravely."

Lin Zhixia lay on the table lazily: "If I go forward, I will be separated from you. I can't go to an international high school."

Jiang Yubai kept sitting upright: "You should apply directly to the university."

"I want to go to Peking University," Lin Zhixia rewinded to the original topic. "That was Professor Shen Zhaohua's alma mater. Professor Shen's university classmates have stayed on to teach, and his research direction is quantum computing, which I am very interested in. Shen and He said hello and he is willing to be my undergraduate tutor."

Before that, Lin Zhixia had never disclosed these news to Jiang Yubai.

Hey, it's really embarrassing for her, Jiang Yubai thought. She knew that Jiang Yubai would definitely not be admitted to college now, so she never mentioned her plan.

Lin Zhixia seems to have grown a lot. When she was nine years old, she would say what she thought. When she was twelve years old, she knew how to take care of Jiang Yubai's mentality-but Jiang Yubai had already seen it after a lot of hard work. He didn't care how strong Lin Zhixia was and how high his test scores were. He calmly said: "You have found the research direction. I am happy for you. Captain Lin Zhixia has a fixed route for his planetary journey."

He held the Romanian egg, like a great prophet: "You will have unexpected gains."

"Yeah," Lin Zhixia nodded vigorously, "You too, Jiang Yubai, one day, you will become what you want to be the most."

Jiang Yubai and Lin Zhixia look forward to each other's future optimistically. Jiang Yubai suddenly remembered another thing: "You called me last night..."

Lin Zhixia slapped the table abruptly, and the noise made the front row students look back at her.

Sitting in the front row, Tang Tingting asked in confusion: "Squad leader Lin, what's the matter with you?"

"I..." Lin Zhixia said vaguely, "I'm fine. I'm sorry, I'm sorry, I'm sorry, you can continue to endorse."

Tang Tingting nodded slightly, once again immersed in the English textbook.

This morning

The first class is English class. The English teacher will randomly select two students from the class to endorse on the podium. Therefore, all the students in the third (seventeen) class except Lin Zhixia and Jiang Yubai are carefully memorizing the English texts.

Lin Zhixia was complaining to Jiang Yubai. Her voice became very soft, and she quietly told him: "Many years ago, my grandfather's family was extremely poor and could only afford one child to study. My mother stopped going to school. She gave the opportunity to study to her uncle. Then, my uncle was admitted to college, and my mother worked part-time to send money to uncle. Uncle graduated from college and worked as a lawyer, but he never contacted my parents... My brother has congenital heart disease and needs surgery. Mom asked My uncle borrowed money, and my uncle was completely disconnected from our family. Later, my brother succeeded in the operation and healed his body, so his uncle was willing to contact my mother."

"Why?" Jiang Yubai asked.

"Listen to me," Lin Zhixia narrated in detail, "My uncle and aunt came to our house last night. He saw my brother's senior high school entrance examination ranking in the newspaper and also saw that I won the gold medal in the competition. He wanted to take me. Go to his house and live with his son. When I was spending the New Year in my hometown in the countryside, my uncle laughed at my dad in public, and I never wanted to talk to him again... What do you think my uncle is like? "

"Human face and animal heart." Jiang Yubai commented.

This is the most serious thing Jiang Yubai can say.

He usually expresses his dissatisfaction with "madness". Lin Zhixia never heard him say who is "human face and animal heart".

Jiang Yubai strongly advised Lin Zhixia: "Don't go to your uncle's house."

"I will never go!" Lin Zhixia declared.

Jiang Yubai nodded and analyzed for her: "Your uncle is not a good person. He puts his interests first. My grandfather said that such people don't care about rules and reputation, and they must be cautious when dealing with them."

Lin Zhixia's tone was serious: "Yes, your grandfather is right."

Jiang Yubai continued to condemn: "Your uncle asked you to live in his house and live with your cousin... They have not considered the boundaries between men and women. To you, they are basically strangers."

"Yes," Lin Zhixia thought, "I know that the percentage of minors under 14 years of age being violated is higher than that of adults over 18 years old, and 70% of them are acquaintances committing crimes. . I don’t believe my uncle will protect my safety."

"He will only protect himself." Jiang Yubai concluded.

Afterwards, Jiang Yubai couldn't help asking: "Is your cousin going to school in Provincial No. 1 Middle School?"

"No," said Lin Zhixia, "my cousin Xiaosheng didn't pass the exam and couldn't get into the Provincial No. 1 High School."

Jiang Yubai speculated: "Your uncle wants you to be a tutor? A tutor who doesn't pay."

"Yeah!" Lin Zhixia was very angry, "that's what he meant."

Jiang Yubai and Lin Zhixia reached a complete consensus.

At this moment, the English teacher happened to walk into the classroom.

Jiang Yubai opened the English textbook and pretended to read.

Perhaps it was Jiang Yubai who pretended to be too alike, the English teacher's relieved eyes fell on Jiang Yubai. The reading voice in the class gradually weakened, and the English teacher began to name and surname: "Jiang Yubai, Lin Zhixia, you two come to the podium to endorse."

In an instant, the whole class looked at Jiang Yubai and Lin Zhixia.

Lin Zhixia glanced at the text and stepped onto the podium calmly. She faces her classmates, her pronunciation is clear and she speaks fluently. The English teacher said with great satisfaction: "You memorize the text, just follow Lin Zhixia's level, read the words properly, don’t get stuck in the middle. Have I told you? When speaking English, You bounce out word by word, it sounds impolite, that's an authoritative way of speaking..."

The class was silent, and the English teacher cleared his throat and said: "Jiang Yubai, it's your turn. Come and endorse."

In today's morning class, Jiang Yubai has been chatting with Lin Zhixia. He paid no attention to the textbook. Although Lin Zhixia has just recited the full text, Jiang Yubai can only remember the first two sentences and the general content of the article.

Jiang Yubai stood in the middle of the podium and retelled the text in his memory in English. The sentence he uttered was completely different from the textbook. The students whispered in the audience, and the English teacher inserted a sentence: "It's okay to endorse this way. You can understand the text, and then use your own vocabulary to express it, learn and use it, and exercise yourself Ability to understand and use English."

Jiang Yubai returned to his seat without any danger. Not long after he sat down, Tang Tingting in the front row turned around and asked, "Jiang Yubai, Lin Zhixia, did you two endorse it?"

Lin Zhixia admitted in a low voice: "Yes."

Tang Tingting saw her face flushed, and asked, "What is your embarrassment?"

"In the morning class, you should read books," Lin Zhixia said, "you should not chat with the same table."

However, chatting with the same table is really easy.

The reason Lin Zhixia told Jiang Yubai about her uncle was because she wanted to share her secrets with her good friends. Lin Zhixia would only tell Jiang Yubai the secret alone, because he was her only best friend.

He is about to enter an international high school.

This is normal, everyone has their own plan.

They were able to live together at the same table in elementary and junior high school for four years, which is already a thing that makes Lin Zhixia feel fortunate. In the next stage, even if she and Jiang Yubai take a completely different path, she will still place him in the position of "the most important friend".

In the first semester of junior high school, some students in the competition class were still working hard for the National Junior High School Maths League, but Lin Zhixia was preparing for a competition called "InternationalHighSchoolProgrammingCompetition". Chinese can be translated as "International High School Student Programming Competition", which is usually abbreviated. For IHSPC-this is a grand international competition, each country can send many teams, each team must have three students.

This year's competition was held in Moscow, the capital of Russia.

At the end of December, the temperature in Moscow was low and the sky was foggy. As soon as Lin Zhixia came out of the airport, he felt a violent cold wave. She dragged the suitcase and ran to the teacher leading the team. The teacher asked her, "Are you confident to win the gold medal?"

"Yes!" Lin Zhixia replied.

That being said...

When she went deep into the hinterland of Russia and came to the nest of Russian players, she was a little bit confused.

Lin Zhixia knows that in the international arena, Russia, Japan, South Korea, the United States, and China are fighting fiercely. In recent years, most of the champions of college programming competitions belonged to Russia.

Lin Zhixia spent a year to learn programming. Her mathematics skills are very solid, and she can memorize "Data Structure" and related algorithms backwards, so she succeeded in standing out in the provincial team.

However, IHSPC not only tests the mathematical and logical thinking of the players, but also requires the players to have a certain level of programming skills.

Lin Zhixia pined her hopes on her teammates.

This time, the teammate who played with Lin Zhixia is the senior third-year senior of the Provincial No. 1 Middle School and the leader in the information discipline competition.

One of his teammates was named Cai. His teammates surnamed Cai had a lot of white hair at a young age, so everyone called him "Lao Cai".

The other teammate's last name is Liang. He looks relatively young, so everyone calls him "Xiao Liang".

Before the start of the IHSPC competition, Lao Cai ridiculed himself: "The three people in our group have the words'Cai','Liang' and'Xia' in their names. We are cooking, cold, blind, and live together. Up."

Lin Zhixia was shocked by Lao Cai's statement.

What shocked her even more was that they were completely surrounded by Eastern European players.

Near their seats are the Russian team, the Belarusian team, the Estonia team, and the Latvia team. Every student in these teams has a very stable temperament, which reminds Lin Zhixia of Alexandrov in the Romanian Masters.

Lin Zhixia sat up straight and waited.

In Lin Zhixia's team, Xiaoliang has the highest level of programming. Xiaoliang is responsible for writing the program. And Lin Zhixia has the strongest mathematical skills. She is responsible for analyzing the topic.

They successfully solved the first three questions, but encountered obstacles on the fourth question. This problem sets up a nested exponential function with a base of 2. The function has been calculated M times to obtain a value N. Now given an X as an input, find the result of N modulo X.

This question is very cleverly presented, and Lao Cai and Lin Zhixia hold opposite opinions.

Lin Zhixia insisted on using the recursive power reduction formula until the modulus equals 1. Lao Cai believes that power reduction is not the key point of this question. Lao Cai had seen a similar subject before, but he suddenly couldn't remember it. He argued with Lin Zhixia in a low voice, Xiao Liang interjected: "Lao Cai, Xiao Lin, what on earth do you do? You guys should give me a letter."

Lin Zhixia pulled the keyboard: "Hurry up and follow my method."

"Wait," Lao Cai stopped, "you submit the wrong code once, and we will be busy with the first few questions."

Yes, IHSPC's competition rules are very demanding.

A player who answers correctly may not be able to score. A player who answers wrongly will definitely be deducted points.

After Lao Cai finished saying this, Lin Zhixia's movements became sluggish. She sorted out the logic again and ran the program in her mind. Lao Cai temporarily put the fourth question aside, and began to discuss the solution to the fifth question with Xiao Liang.

Lin Zhixia glanced down at the fifth question, and remembered the instruction of the competition teacher: IHSPC competition questions often dig holes for the players. Many times, you think you have made it, but in fact you have not. You thought you were the correct answer, but you actually missed the key information. IHSPC always hides some specific routines.

If this is an individual match, Lin Zhixia can answer the questions as he pleases. But she is in the group, she must be careful. She asked Lao Cai about his views on the fourth question, and Cai was typing on the keyboard to write the answer to the fifth question.

Lin Zhixia asked him: "The fourth question doesn't use Fermat's Theorem, what else can I use?"

Lao Cai stared at the screen intently: "You wait until I finish writing the fifth question."

"Question 5, what do you want to do?" Lin Zhixia asked him again.

Lao Cai wears a pair of gold-framed glasses, his face is round like a silver plate, and his whole body shows a kind of rich and noble style. Lao Cai is not like an ordinary science and engineering nerd, he is quite aura-this is Xiao Liang's evaluation of Lao Cai.

Xiao Liang and Lao Cai have been teammates in the Information Science Competition for more than two years. Originally, they had another teammate, but that teammate’s programming ability was weak, so the coach temporarily transferred Lin Zhixia into Lao Cai’s team and asked Lin Zhixia to represent the Provincial No. 1 High School in this year’s international high school programming. competition.

The cooperation between Lao Cai and Lin Zhixia was not pleasant.

Lin Zhixia's constant questioning interrupted Lao Cai's thinking. Lao Cai sighed deeply, and Lin Zhixia was still observing him: "You seem to have a hand error on the seventeenth line of code. You shouldn't let the binary string move two bits to the left here..."

Lao Cai said: "I wrote this on purpose."

Xiao Liang also said, "Xiao Lin, you let Lao Cai finish writing."

Lin Zhixia noticed that the atmosphere was not right. She shut up immediately, afraid to speak.

The game is very long and will last from 11 am to 4 pm. By about one noon, Lin Zhixia was very sleepy. She worked hard, staring at her teammates typing on the keyboard, and the cursor was constantly moving on the screen. She secretly thought that C++ is really a simple and fast language. Although the fixed static structure is the biggest disadvantage of C++, she still likes C++ because C++ is. A powerful tool for the underlying computer architecture.