Chapter 48: Riddles

"That number you asked me to guess..."

"Me! No! Know! Road! ”

Ye Yu's words fell, and the audience suddenly fell silent.

"Are you stupid? I don't know what you're howling about? ”

"He's not going to be stupid, right?"

"Is this going to give up? Then why did Teacher Loulan let him go up? ”

There were all kinds of noises and doubts outside the carriage, and the only common denominator was the rebuke and questioning of Night Feather.

In the other carriage, Toyama Jinji also looked at Night Feather as if he was looking at a funny clown, and took a deep look at Night Feather on the other side of the screen, his face was very angry.

"What the hell are you doing? Even if you keep messing around like this, I don't know what your number is. ”

Night Feather, on the other hand, had a nonchalant face and a rather casual tone, as if he had given up struggling.

"This game has already said that you can't explicitly or implicitly indicate the other party's numbers, so the other party doesn't want this game to pass the game, so, I'm sorry, I don't know how to tell you."

"But we can think about it again", Toyama Jinji looked at the countdown of only one minute at the bottom of the screen, and said eagerly, "So don't you be stupid there and say you don't know?" ”

However, in the face of the chatter and persuasion of the distant mountain Jinji, Night Feather actually began to whistle.

Not only was the distant mountain Jinji in the carriage stunned, but even all the teachers and students outside the carriage were also confused by him.

"Does this guy really not want to live, he is going to be electrocuted, and he is still in the mood to whistle there?"

On the other side of the screen, Kinji Yuanshan looked at the remaining 30 seconds of countdown, and could only show a desperate expression and lamented: "It seems that the two of us are not going to be drowned by the sea, and we are going to be electrocuted here first." ”

"It seems that the S-level military detectives recruited by the Armed Investigation High School are just in vain." There was obvious disappointment in the words that came out of the other party.

"Yes, but I already know that Kinji Toyama saw that the number was four."

"What!" The other party exclaimed in an instant, and even the mechanical voice, which was originally emotionless, had a trace of trilling at this time.

At the same time, Toyama Jinji on the other side of the screen also said his answer at this time, "The number he saw was two. ”

As soon as the two spoke, the last five seconds of the countdown at the bottom of the screen were finally frozen on the screen and no longer jumped.

"Click, click, click, ¡¡¡¡¡!"

The next moment, a crisp iron ring opened, and the handcuffs and leg cuffs that bound the movements of Toyama Kinji and Yaba were automatically opened.

The two stood up from their chairs and looked at each other at the same time, smiling in unison.

"I thought you would be like those stupid brave men in the comics whose IQ is offline, and you can't hear the hints I give you."

Night Feather stood up from her chair and rubbed her wrist, which had been a little red from the iron torture, and said.

Hearing this, Yuanshan Jinji said with a wry smile: "At this time, of course, I don't want the Demon King to dare to joke with your own life, this is a major event related to my life, how could I not hear it." ”

Outside the carriage, although everyone didn't know how they cleared the customs, the freshmen who thought that they would not die jumped into cheers.

Even Lou Lan's nervous face, which was standing in front of the mechanical car on the screen, was twisted together at this time.

The hacker who had hacked into Academy Island's security system spoke again after a long silence, "How did you guess each other's answers?" ”

Ye Yu explained indifferently: "This game is just a more complex logical reasoning problem. ”

He then continued: "First of all, suppose that the unknown positive integers that I and Toyama Kinji saw were x and y, respectively, and the result of multiplying x and y by was either 8 or 16, then the numbers of x and y could only be 1, 2, 4, 8, and 16. ”

"Remember what the most repeated words we used to say every time we spoke?"

"Is it so?" The other party recalled all kinds of strange actions made by Ye Yu before, and reacted instantly.

"Looks like you already know the hint that we've spoken between us." The lips of Ye Yu's cheeks moved slightly, revealing two rows of white and neat teeth, and he continued to explain without interrupting the other party's time: "First of all, suppose the number in my hand is 16, then due to the result of x×y=8 or 16, then Toyama Jinji can only be 1 in his hand, and when I said that I didn't know for the first time, I was explaining to him that I must not have 16 in my hand, so the unknown between me and him became." ”

“x:1,2,4,8。”

“y:1,2,4,8,16。”

"And when Kinji Toyama answered me, then now my unknown can only be: 1, 2, 4, 8."

"If the unknown number of Toyama Kinji is 16, then he must know that I am 1, but he says that the second one does not know, then it means that his unknown number cannot be 16 either; And if the number of Toyama Kinji is 1, then he can also know that my number must be 8, but he said that the second one does not know, which means that his number is not 1 either. (That is, if the number of Toyama Kinji is 1 or 16, then he will definitely determine what the number of Night Feather is, but he still says that he does not know, which means that he must not be 1 or 16 here).

"At this point, the number between me and him can only be."

“x:1,2,4,8。”

“y:2,4,8。”

"At this time, if the number in my hand is 1, then it can only be 8 in Toyama Kinji's hand, but I still said that the third one doesn't know, that is, I am reminding him that I am not 1 either. But let's say the number in my hand is 8, then I can definitely know that his number is 2, but unfortunately my number is 2, so his 8 can also be ruled out. And then our numbers changed to each other. ”

“x:2,4。”

“y:2,4,8。”

"At this time, if his number is 2, then my number can only be 4, but Toyama Kinji said that he didn't know for the fourth time, which means that his number is not 2, and then assuming that the number in his hand is 8, then my number can only be 2, but when he said that he didn't know for the fourth time, it shows that his number can neither be 2 nor 8."

"Then we can get the formula for the last second step of this reasoning math problem."

“x:2,4。”

“y:4。”

"And at the last moment, he said that we were both going to be electrocuted, which was to send me a signal to confirm that my number was 2, and my answer was naturally yes."

"Then the numbers we see with a product of 8 or 16 can only be 2 and 4."