Bit Mania [Hacking]

Everyone in the chat room fell silent after hearing this speculation.

Foreigners usually look careless, but in fact they are not stupid. After a while, they also felt the smell. It was Roger who took the lead in saying: "I didn't think about it before, but now I let you say it like this, it is true." Could explain a lot of what happened...

Mild: ...For example, I was a little strange at the beginning. How come those people know that you, the main offensive and defensive force, are going to other places and will not be there for a few days, so hurry up and mess with us?

A member named Seth also said: Although we did not deliberately conceal the fact that you are going to leave for a few days, only people in the same camp know, who thought it was inadvertently revealed it-after all, this matter has not been disclosed to us. When under attack, it is impossible to mention the strategic height... Now it seems that it may have been used by someone with a heart.

Octo: ...You guys are amazing, actually I haven't thought of those things yet... What I want to say is just now, when I came back, I had a private chat with R and I for a while, and I have never been attacked, and I showed up in the chat room Things happened later, so I think the spy might be in the big room.

Everyone was a little silent. After all, it would not be a pleasant thing for anyone to know the possibility of spies around them. Apart from the huge psychological gap, there is also a sense of crisis of being spied on.

R21473: I've written down the list of people in the big chat room.

Octo: Well, let's talk about the opponent next.

R21473: Yes, Octo, after you fought with them today, what else did you find besides the IP address?

Octo: Their equipment is very good, and the calculation speed is very fast. It should not be for civilian use, but a large computer such as a server. The operator's technology is also very good, and he has a deep understanding of the operating system. Too many, very underestimated the enemy, blocked my port when I came up, and brute force cracked my security password. The advantages were not used at all, and I used the API function to impersonate their dynamic connection database.

Mild: And killed two of them.

Octo: I originally wanted to kill them one by one secretly, but I didn't expect that there were still people who were more vigilant and found out in time and ran away immediately.

After a pause, Zixin continued typing.

Octo: In fact, most of us here have good computer skills, but lack experience in hacking and defense, so those guys took the opportunity. The same is true for Linux, Afier, and Vogt. They are inexperienced and unfamiliar with technology. I guess these three guys are all engaged in theory in reality... those people will not be able to kill them. It's a bit of a pain...so I suggest that you wait patiently, and it is estimated that they will have news soon.

R21473: Now that you say that, I can feel a little relieved...

Everyone then discussed for a while, mainly for the recent attacks, the IP has been taken to check the detailed address from the telecom bureau, and the result will be obtained in a short time, but because they are worried about the spies in the big room, they entrusted a few Different people went to investigate separately.

However, there is no rush to investigate spies. You can only find ways to lure people to show their feet, and then catch them in one fell swoop. You must not startle the snake before the last spies are caught.

After the impromptu meeting was almost over, Zixin left the room and chatted with Israel privately.

Octo: Jung Soo, I'm under siege :-(

Octo: There are so many of them, they swarmed up, and the spam mails blocked the sewers of my house, and I was almost killed, so terrible, so terrible.

Octo: Zheng Xiu, Mr. Zheng, why are you always silent!

A certain person is speechless, and he is not a hacker. If he came out all day to find a sense of presence, he would still be safe and sound until now?

Octo: Then help me fix the loopholes in Linux!

Israel: ...Is there a causal relationship between these two events?

Octo: Yes, think about it, what software companies are good at, operating systems!You know that I use a modified version of Amiga, which was also made by those bastards. I am shooting devils with a rifle made by devils. I don’t know when these guys will use the loopholes in my system Kill me - so I have to use my own system, Linux!

Israel: Then use it.

Octo: No no no no! The hole opened by Linux is bigger than any other system in the world. You want me to use that?I was the one who died the worst one day!

Zheng Xiu listened to him for a long time, and finally realized what Zixin wanted to express after going around such a big circle, and couldn't help but be a little bit dumbfounded.

Israel: No one will find that bug, so you can use it at ease...

Octo: It’s only a matter of time before the release is discovered. If you fix it now, people who use Linux all over the world will be out of danger.

Israel: Listen to me, just put it there!

Octo: Where did you come from so confident?As far as I know, there seems to be no top mathematician named Zheng Xiu in the world!

Israel: ... Do you believe that the whole world knew my name before, and it was not because of you that I deliberately hid myself everywhere in this life?

Octo: I don't understand what you said, what does this have to do with me?It doesn't make sense. People knew you before, but now they don't know. It will be recorded in history, okay... Or are you already very old, and the contemporary people don't know you at all?

Zheng Xiu held his breath for a long time, the expression on his face finally collapsed, Israel: ... It's not that I made up my mind that I don't want to help you, but I can't fix it after I say it, and I can't change it with empty hands.

Zixin also softened his tone, Octo: I asked our professor there, but he was at a loss as to what kind of life honor it is... There is no relevant record in the literature... Sigh, there is really no way.

Israel: Is patching Linux really that important?

Octo: It’s like having a knife hanging above your head, and you have to worry about who will cut the rope hanging from the knife at any time... Why do you think you have nothing to do with such a thing...

Israel: Since you said so, I will find a way to solve it.

Zheng Xiu turned off the computer, frowned deeply, sat on the chair and stared at the black computer screen, thinking for a while, suddenly seemed to think of something.

"Speaking of life honor, it reminds me of that..."

He stood up and went to the phone, dialed a series of numbers, and after two beeps, a young male voice came from the opposite side: "BOSS?"

"Jason, help me arrange the itinerary to Princeton, hurry up... the capital this afternoon? Refund the ticket, wait for me to finish my work there, and fly directly to Huaguo..."

"Luggage? Send it directly to Huaguo later, anyway, it's just a few documents..." After a pause, Zheng Xiu asked again: "How is the lawyer?"

The assistant named Jason replied: "It has been signed, and everything is going well, Boss, you..."

"Very good, I will buy a few boxes of baby milk powder and send them over later, the best kind."

At [-]:[-] pm Australian Eastern Time, a plane took off from Melbourne International Airport. After a connecting flight, a young figure finally walked out of the terminal of Newark Airport in the United States in the early morning of the next day.

The boy was dressed in casual clothes, wearing sunglasses and a peaked cap. His brown hair was pressed into the cap, and only his well-shaped nose and chin were exposed. He had a Caucasian complexion, and his stature had not yet reached the age of height. It can be identified that there is a white T-shirt, jeans, and black sneakers inside the plaid casual shirt.The ordinary dress in the 21st century, but in the early 90s of last century, when he just stepped out of the first-class cabin of the plane, people around him looked back frequently, thinking it was some low-key star.

The boy packed lightly, stood on the side of the road and hailed a taxi and got in.

On Princeton Street, more than 100 kilometers away, a thin figure waved his hands and kept gesticulating while walking. It was an old man wearing big-frame glasses, messy black and white hair, and wearing a khaki suit. The old shirt and crumpled trousers do not show that it used to be a suit at all. Passers-by saw him unconsciously avoiding the two sides, and heard this crazy old man muttering incessantly. mumbling something.

"...Assuming that there are p pebbles placed on the vertices of the connected graph G, a pebbling movement...with an odd number of pebble vertices r...G satisfies the 2-pebbling property..."

"The Descartes product G times H of G and H is a graph, and the vertex set should be...is..." The old man's lips moved, his eyes were red and bloodshot, and the people around him dodged further away, and he was walking dead Pan walked around to the back alley next to a pizza shop, hugged his head in pain, and slammed into the wall one after another.

"Where is the apex! I can't figure it out! Ah!..."

Just as this grotesque forehead hit the mossy brick wall again, a white hand stretched out from the side, with the back of the hand pressed against the wall, firmly blocking the gap between the head and the wall, and the old man bumped his head against the wall. On the palm of this hand, the soft touch made him startled.

"What you lack is a tree or an even cycle with at least 10 vertices multiplied by a graph that satisfies the 2-pebbling property." The owner of the hand spoke a young foreign English, with half of his face covered under sunglasses So much so that it is completely impossible to see where he is looking and what he is thinking.

The old man didn't care about this at all, and after a moment of ecstasy, he grabbed the shoulders of the person in front of him and shook vigorously: "Yes, and then, what kind of tree should the Fk center set be set on to realize the generalized friendship?"

"Want to know?" the man asked slowly.

"Yes! Tell me!"

"Come with me for a cup of coffee?"

When the old man heard that there was coffee, his already bright eyes became even brighter: "Immediately! Immediately!"

The teenager wearing sunglasses and a cap in front of him smiled slightly, put his right hand into his pocket, held two plane tickets between his long fingers, and waved them in front of him.

Two hours later, the White House in the United States.

The phone rings loudly from the Presidential Palace, the same voice as usual, but at this time there is a hint of urgency for some reason, the secretary answers the phone and says "yes, yes" twice, with a flattering smile on his face, he dials the internal line and connects the phone It was forwarded to the President himself.

A famous figure in history picked up the phone: "What's the matter?"

"Mr. President, it is very sad to tell you one thing, our national treasure is lost!"

"National treasure? Uh... the Great Migration of Bald Eagles?"

"no!"

"Is that a panda borrowed from Huaguo?"

"Neither!"

"Red-breasted pigeon?"

"Neither!" The voice on the other end of the phone brought out tears: "Yes...it's that one!"

"I'll give you five seconds. I'll hang up when the time is up." The President said kindly.

"The Optimus Prime of mathematics today, sir!"

The plane flew across the boundless blue sky, leaving behind a long trail of white condensed fog, which lingered for a long time, and it was as gorgeous as a white rainbow penetrating the sun.

The old man held a seven-layer sandwich in his left hand, opened his mouth wide and bit it down fiercely. The golden egg yolk juice overflowed and stained his face. He picked up the coffee cup with his right hand and gulped it down several times. It was as thick as ink. The black coffee slid into his stomach without changing his face, and the old guy smacked his lips, looking very satisfied.

"Hurry up and tell me the proof of the lemma!"

Zheng Xiu was sitting by the window. He had already taken off his peaked cap and sunglasses. Hearing this, he turned his gaze away from the window and handed him a tissue: "If the diameter of G in the picture is 2, then take G as the diameter. The f function of the factor is less than or equal to the absolute value of the V function plus one, and you can think about it later.”

The old man blinked, took another bite of the sandwich, wiped his hands on his trousers, and laid them comfortably on his bulging belly.

"Mathematics, coffee, staying away from fascism, cute little angels, what a pleasant life..."

……

"Mr. President, what can we do?"

"What else can I do, ask the secret service to detain him, and let the Immigration Bureau stamp his permanent residence card on his back?"

"Yes, but..."

"Back then we pushed him out with our own hands!...No one can stop him from leaving today...We, the United States, are a civilized country..."

"You, are you kidding..."

"37 years ago, the United States, which had just experienced World War II, had already made the biggest joke in the world to Paul Erdös."