If the main function of the first and second floors of the library is to borrow books and read books.

Then the third layer, the main function is self-study.

For a long time, it has been a place for seniors to prepare for the graduate school entrance examination.

In addition to the tables and chairs used for studying, there are also several lazy sofas around the area so that you can take a nap after a night of fighting.

But...... The objective law of the development of things is to deviate from the original intention.

The third floor is certainly a holy place for seniors to prepare for exams, but it is also a treasure place for couples to fall in love.

Those lazy sofas are big enough for couples to relax and snuggle up after a stressful day of studying.

It's just that it's only 8 o'clock at this time, and the seniors are still restrained, and everyone keeps quiet, even if they discuss problems, they are quite restrained.

……

A pair of boys and girls sat at a desk not far from the door, with a notebook in front of the boy and a copy of "Elements of Landscape Architecture Design" in front of the girl.

It's just that the girl's mind is obviously not on the book, she sometimes looks back at some couples who are quietly "sprinkling dog food", and sometimes secretly glances at the boy next to her.

The boy's expression was serious and serious.

In the eyes of girls, this is what a high-IQ boy should look like.

- My boyfriend participated in the Information Olympiad in high school (Youth Informatics Olympiad for short as OI, participants are generally called oier. I came to the provincial exchange for various reasons, and continued to participate in ACM in my freshman year...... However, his teammates did not give enough, so he stopped at the regional competition.

In my boyfriend's words, I really can't take it.

The good thing is that gold always shines.

Although her boyfriend failed to fulfill his long-cherished wish at ACM, he was recognized in Mr. Chen's research group.

As a sophomore, he is at ease in a research group full of master's and doctoral degrees.

What is Strength?

That's strength.

What is Genius?

That's genius.

Today, she accompanied her boyfriend, on the one hand, because her boyfriend was busy with scientific research, and the two did not have much time to meet. On the other hand, she also has a little extra care......

It is said that there is a software engineering student.

Although she is very confident in herself, the creature of the school girl is ...... Right.

"It's like the sea, it's almost a quarter past eight o'clock. Why haven't you come yet? ”

The girl touched Shen Ruhai and asked with a smile.

Shen Ruhai didn't blink, and directly moved the phone to her side: "You ask." ”

The girl picked up her phone with a smile, quickly unlocked it with a password, and then opened WeChat and clicked into the group group.

She frowned slightly, then her expression became serious, and she asked.

"Where are you two? Can you have a sense of time? ”

It didn't take more than five seconds for the message to go.

The schoolgirl named Lacquer and Ink replied with a message.

"I'm sorry, senior, I'm already climbing the stairs." At the end, he returned a smiley face.

The girl glanced at Shen Ruhai, and after thinking about it, she felt that it was right not to return anything.

So she turned off her phone and looked at the door with a serious face.

A minute later, a young boy and a girl appeared at the same time.

The man's face was calm, the woman's was smiling, and compared to her face, it was noticeable that she seemed to have a gel pen stuck in her head.

Stick a pen in your head?

The girl snorted slightly in her heart, and then she touched her boyfriend.

Then she noticed that her boyfriend's eyes lit up without leaving a trace when he saw the hairpin girl.

……

"Hello senior." Qi and Mo first said hello to the senior, and then looked at the girl next to the senior with some confusion.

"Well, here we are." Shen Ruhai Chongqi and Mo nodded with Ye Ming: "Let's not talk nonsense, there are six questions here, which are the real questions of last year's ACM intramural qualifiers." Although it is relatively simple, less than 30% of the people in the stipulated time are completely right. And even if it's all right, it doesn't mean anything, because ACM's principle of playing is fast and accurate. ”

As he spoke, Shen Ruhai pushed over the two printed sheets of A4 paper.

"Who is this?"

"Oh, the senior sister of your design institute, she doesn't participate, she just comes to have a look." Shen Ruhai nodded with a smile, and looked at Ye Ming again: "Ye Ming, right?" I heard you're not from the computer science department? ”

"Well, I'm an electronic information engineer."

"As for ACM, we usually use C/C++, you're okay, right?"

Ye Ming nodded calmly: "It's okay, Python is okay." ”

"I don't usually use Python, but for so many years, I have basically used Python for large numbers, or JAVA."

Saying that, Shen Ruhai glanced at the time: "Okay, let's start." ”

Ye Ming and Qi and Mo glanced at each other: "What about the senior?" ”

Shen Ruhai smiled reservedly, and before he could say anything, the girl next to him laughed: "Did your senior last year be the first player in the school's qualifiers, or was it oier-didn't Boss Chen tell you?" ”

The two looked at each other again.

Qi and Mo smiled slightly: "Then please ask the seniors for more advice." ”

Ye Ming also smiled and nodded, and then opened the notebook.

At the same time, look at the A4 paper.

……

"ACM Program Contest Preliminary Round"

Time: 150 minutesQuestion volume: 6 questions

Note: There is no limit to the algorithm for solving the problem, as long as it can be entered in accordance with the standard format and the correct result can be obtained through the program, this problem will get a full score. If the problem cannot be run completely, the idea should be annotated clearly.

A: Alphabetical order. Difficulty: 1 star

Title: There are 10 English letters (including upper and lower case), and the following functions are achieved with a computer. Sort and output these 10 letters in the order of A,B,C",Z,a,b,c,"",z. Note: Lowercase letters should be after uppercase letters.

Input: Enter any 10 letters. JIEBACDFHG/jiebacdfhg/JiEbacdFHG

Output: The 10-alphabetical sequence. JiEbacdFHG/abcdefghij/EFGHJabcdi

Looking at the title, Ye Ming secretly shook his head.

Is it so simple to fool elementary school students?

#include

void main()

……

cout<

｝

Successfully writing down the answer code, Ye Ming continued to look at the next question.

B: The number of reports is arranged, and the difficulty coefficient is 2 stars.

n people form a circle and number 1~n clockwise......

Ye Ming only thought for a moment, and then wrote down the code again—no more than thirty lines of code.

……

As Ye Ming looked all the way, his hand didn't stop, as if it was a ...... Typing while looking at the text.

Or maybe you're chatting with someone.

Soon, he completed the D problem and came to the E problem to solve the equation.

Title: An equation like ax 2 +bx+c=d. where a, c, and d are all integers, and b is a positive integer. Please use the computer to find the value of the corresponding x (only the real root is considered).

Ye Ming stopped at this time.

It's not that he doesn't know how to write code to solve equations, it's that he just reviewed his junior high school knowledge at noon today while teaching Ita.

This quadratic equation is particularly familiar.

Why don't you let Ita try?

"Ita."

"Yes."

"Want to learn to code?"

"What is programming?"

"Instruct a computer in a specific computer language to perform a given task."

"Do you teach me the language of mathematics, for example?"

Hearing Ita's answer, Ye Ming was stunned.

He's stupid.

Ita is an AI herself, and she lets AI learn programming...... What about this set of dolls?

As expected, he casually assigned a few values to the abcd of question E, and asked what the value of X was, and Ita immediately answered.

So he slapped his forehead and shook his head and smiled self-deprecatingly.

His action also attracted the attention of the lacquer and ink around him.

She had just finished the third question, and it had taken her fifteen minutes so far.

Then she saw that Ye Ming had started the code of the fifth question.

She was startled.

So fast?

Open the door: [Recommended Ticket]