"So,"

Next to Yi Cheng, Yan Ziqi's face approached him.

The two of them were lying on the bed, less than 5 centimeters apart.

Ziqi's smile, every breath and breath, Yi Cheng can feel it.

Her face flushed, but she didn't escape Yi Cheng's gaze.

She said, "Shall we try it?" ”

"Huh?" Yi Cheng's heart beat faster.

He stared at Ziqi's good-looking lips tightly, only to see the upper and lower lips open and close, making a weak sound-

"Kiss."

So......

How did it become the way it is?

Yi Cheng recalled.

……

An hour ago, after solving Yan Ziqi's problem.

Li Anruo went to the bathroom to solve her urgent matter.

Then this Li Anruo was bored, so he pulled Ziqi to the door.

In less than a while, more than 10 people were gathered to Ziqi's room to play board games.

I originally wanted to play plot killing, but unfortunately there are no prop costumes and a good online mode.

So everyone played together for a while Werewolf Kill.

This is a math game related to game theory.

It's perfect for these ladies who have been selected to participate in math competitions.

The basis of game theory is simple, and John Nash completed this part of his thesis when he was in his 20s, for which he won the Nobel Prize in Economics.

Yi Cheng had already studied this part of the course with Yan Ziqi on his own.

Many of these players have also pre-learned.

So this game is very enjoyable.

Yi Cheng and Yan Ziqi took the lead by a very clear margin.

Whether it's as a good guy or a werewolf, both of them are very handy, and only when they play against each other there will be some differences.

I played for about two hours.

"No more playing, no more playing!" Wu Qingqing was very depressed.

"Are you interesting? Do you have to count to play Werewolf Kill? ”

"This Nima, I think it's a psychology game, right?" The fat man Deng Weiwei said.

"Hehe, of course it's a math game." Yi Cheng retorted without raising his head, "The game tells us that each player will take the most self-interested action they can to achieve the best solution.

The game of werewolf killing can be reflected in the dynamic game and the Nash equilibrium.

Suppose that participant 1 chooses strategy S and participant 2 chooses strategy T, if S is the best response to T and T is the best response for S, then the strategy group (S,T) is a Nash equilibrium.

The Nash equilibrium view is based on the assumption that the strategies chosen by the participants are mutually optimal, i.e., mutually consistent.

In a set of alternative strategies, there is no incentive for any participant to switch to another strategy.

So the system is in a state of equilibrium, and there is no force to push it towards different behavioral outcomes.

Werewolf killing is a game in which the probability of guessing the identity of others is known under the condition of knowing one's own identity, and the winning and losing conditions are known, trying to maximize the winning rate, so it can form a Nash equilibrium.

For example, if in the case of a small number of gods, A and B jump against the prophet, and B checks and kills player C who claims to be a civilian, then in the situation where the number of gods is small and the werewolf has an advantage, voting for civilian C is the best strategy for the good guy lineup, because protecting the true prophet in A and B is also the best strategy for the werewolf camp, because villager C is out as an anti-push card, and the werewolf can keep one person.

At the same time, when the Nash equilibrium is reached, it does not mean that both sides of the game are in a state of immobility, in the sequential game, this equilibrium is reached in the continuous actions and reactions of the players, and once the equilibrium is broken, the participants will look for a new equilibrium. For example, in the previous example, if the good guy camp no longer believes in the person who jumps the prophet in the back position and chooses to go straight to the B out, the werewolf camp will have to choose another strategy such as jumping other identities to protect themselves, and a new Nash equilibrium will be reached. ”

"Agreed." Yan Ziqi nodded slightly.

"Yicheng, are you still a person?!" Wu Qingqing's eyes widened.

"I can't do it, I'm a little dizzy." Sun Xiaofeng was a little uncomfortable, nauseous and nauseous, and his brain was dizzy.

This is a sign of overuse of the brain.

"Hehe, hehe." Fang Mingyu smirked.

He was the youngest of the group, only 13 years old.

Fang Mingyu is a genius boy, who reads early and skips the first year of high school.

He qualified for this CMO competition, is a man with two brushes, is favored by many math teachers, and has the reputation of a math prodigy.

But it's not good to play two werewolves here and kill the whole person.

"Okay, forget it. I'm ready to go back. Yi Cheng stood up.

In 6 rounds, the werewolf killed, and Yi Cheng won 5 wins and 1 loss.

This result is the same as Yan Ziqi.

Negative games are all when two people are opponents.

It can be said that it is comparable, but in terms of mathematical attainments and breadth and depth, Yicheng's lv4 level should be higher.

……

After the game ended, Isei returned to his room.

Li Anruo lay on his bed and fell asleep.

"Hey." Yi Cheng was very unhappy about this.

This guy doesn't know when he slipped out, but he is still asleep.

"Shhhh Don't wake her up. ”

Jiang Wenbo held up a finger.

"Brother, we had a good conversation here just now, can you go somewhere else?"

Yi Cheng wanted to kill this garbage.

Although it can be seen from the way here, Jiang Wenbo has a good impression of Li Anruo.

"But you have pity on the jade, what should I do?"

"You can go sleep in Li Anruo's bed!" Jiang Wenbo lowered his voice and smiled evilly.

"Isn't that just what you need?"

"I'm ......"

Yi Cheng raised his hand.

Jiang Wenbo covered his face in fright.

"Forget it, don't mess around with anything."

Yi Cheng calmed down, said a few words, closed the door and walked out.

……

When I came to Yan Ziqi's room, I found that the situation was still not optimistic.

During the game just now, Xia Wenyu and Zheng Rongrong from Provincial No. 2 Middle School fell asleep in Li Anruo's bed.

Yi Cheng finally understood why Ang Lee wanted to go to their room.

It's a food chain.

Xia Wenyu occupied Li Anruo's bed, and Li Anruo went to occupy his bed.

"Which room is Xia Wenyu from?" Yi Cheng asked.

"It's like 712." Yan Ziqi looked at him.

"But," Yan Ziqi smiled bitterly and looked at the two girls on the bed, "they are all here, and no one will open the door for you if you go." ”

“……”

This is not going to work, Yi Cheng thought to himself, and he had to wake them up.

"If ......"

Ziqi lowered her head quietly, burning from her face to the base of her ears.

"If you don't mind, you can come with me."

"What?" Yi Cheng was a little frightened.

Except for Gong Sinan, he has never shared a bed with other girls.

"Ah, I mean, everybody get dressed and spend the night together, should, should...... No problem. ”

But......

Yi Cheng touched the little head in his pocket.

Gong Sinan had already fallen asleep.

I'm a drag on my family, isn't that good?

He hesitated, nodded, and then lay down beside Ziqi.

……

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