Bit Mania [Hacking]

For Luo Zixin, today is obviously a day of nothing.After school, he left school early as usual, went home to get the tools and today's order, and embarked on the road of home repairs for residents in the town.

Just as he was riding his bicycle through the streets of the town, there was a faint roar above his head, and the boy raised his head subconsciously. A white commercial airliner flew across the evening sky, leaving behind a long trail of water. The trajectory formed by the condensed air is extremely gorgeous.

Luo Zixin looked away indifferently and continued with his work today.

Where he couldn't see, a young boy was sitting in the airplane cabin, looking down through the plexiglass. He was about fifteen or sixteen years old. But his face was full of dignifiedness and seriousness that did not match his age, and it was inexplicably sharp.

"Luo Zixin, what are you doing now..."

Zixin rubbed his sore shoulders and was sent out by the last customer. Repairing fluorescent lamps does not require high technical content, but it fully tests the physical fitness of this little boy. He needs to stand on the escalator with his hands raised , constantly turn the starter and the lamp tube, adjust the bias current adjustment resistor RP3 of VTl, until the fluorescent lamp is adjusted to the most appropriate brightness.

This is a family that lives in the center of the town, not far from Huanjiang Middle School where Luo Zixin is studying. He has already completed today's order. If it was yesterday, the boy must have mustered all his energy to ride his bicycle to go home, eat After finishing the dinner made by his father, he plunged into his room to study the computer, but today Luo Zixin was a little listless and unable to gather his strength.

He pushed his bicycle and walked back slowly, watching the scenery along the way absent-mindedly. Suddenly, a white double-story building came into Luo Zixin's sight. The door frame with the words "Jiang Town Library".

Luo Zixin locked his bicycle and walked quickly inside. What he saw were rows of bookshelves that were much larger than the school library. There is a staircase, which should lead to the second floor.Is the second floor full of bookshelves like this?This guess made the boy swallow unconsciously.The library was quiet and there were few people around. A young girl was sitting at the front desk, yawning boredly while propping her forehead.

He stood there looking around for a while, walked to the front desk with excitement, and asked tentatively, "You... hello, is there an English-Chinese dictionary here?"

"Of course there is." The voice in the ear made the woman raise her head, and subconsciously pointed in the direction. Luo Zixin nodded gratefully to her, and was about to walk there, but the woman behind him suddenly stopped him .

"wait!"

The boy turned around suspiciously.

"Do you have a library card?" The girl looked up and down the strange boy in front of her. There were not many people visiting the town library on weekdays, and she could recognize most of them.

"Borrow, library card?" Luo Zixin's eyes widened.

"Without a library card, you can't borrow books in the library!" The woman said, "If you want to read a book, you can get one from me."

"Oh……"

"For 50 yuan, you can read books here for half a year. If you want to borrow them, you have to pay an extra fifteen per month."

Zixin was taken aback: "Do you still need money?" It was the first time he knew of such a place, but the school library that he had been going to had always been open for free, which surprised him a bit.

50 yuan is definitely not a small amount for a boy. You must know that in the early 90s, a lady’s tip for sitting on the table was only 200... Oh no, this metaphor is a bit nondescript. To put it another way, a woman who works in a provincial factory At that time, the salary of the living employees was only [-] yuan a month!

Luo Zixin subconsciously touched the wallet in his pocket.This is the money he earned from repairing electrical appliances for three hours tonight, plus the money he put in it as change before going out. The total adds up to exactly 53 yuan, which is just enough for him to apply for a library card.

But this money can't all be counted as his. Excluding the money originally brought from home, nearly [-]% of the remaining money is the cost of replacing parts during repairs, and [-]% is the boy's labor. It also includes the family's utility bills, water, electricity, gas, three meals a day, and his tuition fees that need to be paid.

There is really very little money left at disposal.

But Zixin only hesitated for a moment, and put the 50 yuan on the front desk. His almost crazy obsession with the computer made him not think about it that much, and he didn't even think about whether he could really fix the computer. , and how much the two college students will pay him for repairs in the end, will it make him lose money in turn.

The boy just thought he wanted it, he needed it, so he did it.

The time to acquire knowledge always passes quickly. Luo Zixin flipped through the dictionary quickly, and recorded the definitions of the technical terms one by one. When he looked up, the wall clock in the library showed that it was almost eight o'clock.

The library of Huanjiang Town closes at 08:30 every day, and he still has half an hour left. Luo Zixin is almost submerged in the ocean of books. Of course, it is impossible to leave early. He stood up, put the dictionary back where it was, and suddenly A thought flashed through me.

There are so many books here, is it possible... that there are books on computers?

Thinking of this, how could he still be able to hold back, his eyes scanned the bookshelves quickly, hoping to see the relevant words, as he walked past the bookshelves, a few readers in the library raised their heads in doubt, and saw the boy busy He shook his head and continued to read the book in his hand.

In their past experience, many young people have been here. At the beginning, they will wander around like boys with great interest, and they want to read the entire library collection, but after a while, The young people soon tire of this place of books and nothing else, and never appear here again.

They have seen too many young people like this.

Luo Zixin walked around the huge room, and the hour hand was already pointing to [-]:[-]. Having found nothing, he wiped the sweat from his forehead in disappointment, and climbed up the stairs leading to the second floor without giving up.

As expected, it was full of books like the ground floor. Zixin searched from the most likely bookshelf about electrical engineering and electronics, but he still couldn't find it. He took a deep breath and started to search from the beginning.

In the end, Huangtian paid off. Luo Zixin rubbed his frozen hands excitedly. There were more computer books in front of him than he had imagined. They were neatly arranged on an inconspicuous bookshelf. He took out one that should be the most obvious one. "Introduction to Computer", at this time the hour hand was already pointing to 25:[-], and Luo Zixin sat down on the table without thinking about taking it to the table to read, and began to read it at a glance by the dim light passing through the bookshelves.

"So who, the library is closing, get out of here!" The administrator's footsteps came up the stairs from downstairs: "If you don't leave, you will be locked inside!"

Luo Zixin had just read it in the book, and he could not wait to tell the other party to lock himself here, but he knew that this was unrealistic, because after the library was closed, the switch would be pulled off, and he would be in the dark Apart from holding the book as a pillow in the middle, I can't do anything.

But Solomon's treasure is right in front of him, but the stone gate is about to be closed. How could this persistent little guy let it go willingly?Luo Zixin responded, while gritting his teeth and not blinking his eyes, he actually memorized all the contents of the book catalog within a few tens of seconds after the other party walked in front of him.

After returning home, relying on the contents of the catalog in memory, Luo Zixin's progress in researching computers was several times faster than a few days ago. He has made rapid progress, and he has repeatedly deliberated on the few words in his memory, and he has figured out several key technologies in one night only by speculation. This kind of calculation ability is simply shocking.

Starting tomorrow, the library will become his daily routine.The boy closed his eyes, thinking this way in his mind, recalling the places where those computer books were placed, a slight doubt flashed in his heart.Because beside those books, what he saw was not electronics, not mechanics, not physics, but—

advanced mathematics.

——What is the connection between the two?