The rules of the preliminary round of the World Mathematical Olympiad are the same as in previous years, and the best-of-nine system is adopted. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

In the nine-game game, the first eight games adopt the mode of answering questions, ten questions in one game, players on both sides can rush to answer, one point for answering correctly, no points will be deducted for not answering correctly, and two points will be awarded for the second answer, and no points will be deducted for answering incorrectly, and the team with the highest score at the end of each game wins.

The rules of the first eight games are actually simple and easy to understand, that is, to rush the answer, as long as you are confident that you can answer correctly, then desperately grab, you can get 1 point if you get the answer right, but if you are not sure whether you can answer correctly, but you also grabbed the right to answer once, in case you answer wrong, then it is the opponent's turn to answer, if the opponent answers correctly, then they can get 2 points.

This is a kind of psychological game and wisdom contest, in higher universities, this kind of thing is very common, as a way of wisdom contest, the rush to answer is more confrontational, and it is also more able to test the psychological control ability of the contestants in a tense and intense environment, so the organizers over the years like to use this way to let students from various universities confront.

In the first eight innings, if there is a 4-4 draw, then the ninth game will be played.

In the ninth game, the game is still a rush answer, but this rush answer is a point deduction system, one point for a correct answer, and three points for a wrong answer.

This ninth game can be described as the finishing touch of the competition, and the previous games to the ninth game are all exciting, which is different from the previous struggles of everyone to answer.

Every time the game reaches the ninth game, there will be a dead silence on the field, all the players are holding their breath and calculating, all eyes are on the contestants, it seems to be ancient, but each contestant's brain is running with high efficiency, which can be called a silent brainstorming.....

.......

Jiang Yin listened to Chen Peipei's gushing explanation, and yawned with some interest, in fact, he already knew these rules, but looking at Chen Peipei's very much desire to behave, it was not good to brush off her good intentions.

"Pepe, I already showed Jiang Yin the rules of the competition last time, so you don't have to tell him again." Gu Xue came to the rescue in time, and Jiang Yin glanced at her gratefully.

"Huh? Are you sure? Sister Gu Xue, why did he still look very interested when I told him? Chen Peipei suddenly realized, and looked back at Jiang Yin.

"He's so enthusiastic that he's embarrassed to interrupt you." Gu Xue has always spoken the truth, which also made Chen Peipei blush.

"I'm sorry, Senior Brother Jiang, I thought you didn't know."

"Ah, it's okay, it's okay, I don't remember it very well anyway, it's okay if you say it again." Jiang Yin hurriedly smiled and rounded the field.

"Okay, okay, you guys are fine, let's come over for a meeting now and determine the order of tomorrow's battle." Professor Jiang Fang greeted everyone.

Several members of the BGI group also quickly surrounded them.

"Let's fight tomorrow against the University of Toronto, Canada, there are no particularly talented people in their school, except for the team leader Kadavinci, the level can only be regarded as relatively mediocre, so we don't have to put on the most powerful battle formation at the beginning, we all know that we want to attack the enemy's shortcomings with our own strengths." Professor Jiang Fang glanced at everyone, "Yesterday I asked Gu Xue and Lei Yu to discuss it with you, and now the candidates for the first battle have been preliminarily determined." ”

After Jiang Fang finished speaking, he then looked at Jiang Yin kindly and said, "We unanimously elected Jiang Yin as the attendee of the first battle of our BGI. ”

"Me?" Jiang Yin asked with a smile, "It's the first time I've participated, and I won't be holding you back in the first battle, right?" ”

"In the past few days, through the problem-solving exchange with you, I found that your personal level is very high, even compared with me, but I can't be sure that your personal performance is stable or unstable, so I suggest that you be the first to play and see your performance." Gu Xue said at this time.

Jiang Yin turned his head, "Sister Gu Xue isn't afraid that I won't perform well?" ”

Gu Xue was not afraid of Jiang Yin's gaze at all, but raised a pair of beautiful eyes to look at him and said, "I believe in you." ”

"Ahem" choked Jiang Yin a lot.

"Jiang Yin, what do you personally think of this first battle attendee, if you have any ideas, you can say it, we can also replace someone else as the first battle player." Jiang Fang asked towards Jiang Yin.

"Professor Jiang, don't worry, I can do it." Jiang Yin nodded with a smile.

It seems that because Jiang Yin's self-confidence has infected everyone, everyone feels a lot less pressure.

"Senior Brother Jiang is so powerful, he will definitely win a big victory tomorrow!" Chen Peipei said with a small fist.

"Yes, yes, we will win tomorrow!" Cheng Ziang also chimed in.

"Okay, since it's decided, then let's go back and prepare today, if Jiang Yin doesn't understand anything or is not clear, you can come to my room at any time to ask me, and of course you can also chat with the team members." Professor Jiang Fang also made the final decision.

"Okay, then come on tomorrow!"

"Come on!!" ....

....

Sleepless all night, when the first rays of morning light spilled into the house, Jiang Yin opened his eyes, looked at his watch, it was only five o'clock, he didn't wake up Cheng Ziang, who was in the same dormitory, he got out of bed alone, washed up, and he came to the living room alone to eat breakfast.

Heating a sandwich in the microwave, a glass of milk, Jiang Yin read the newspaper while eating, American newspapers are actually not difficult to understand, as long as the vocabulary of English words is enough, it seems that there is no obstacle, read the newspaper for a while, and when Jiang Yin finished eating, he was about to pack up his things, when suddenly the door of Gu Xue and Chen Peipei opened.

Gu Xue walked out sleepily in a HelloKitty pink home suit, and her bumpy curves were full of youthful temptation under the pink home clothes, so that Jiang Yin couldn't help but swallow a mouthful of saliva, she didn't expect that her cold senior sister could be so cute in cartoon clothes.

Gu Xue was startled when she saw Jiang Yin, and only after seeing who it was before she asked, "Why did you get up so early?" ”

"Well, I got up when I couldn't sleep." Jiang Yin said with a smile.

A worried look flashed across Gu Xue's face, "Don't be nervous, we are all a team, just follow us, although we started today, we are all with you." ”

"Well, yes, yes." Jiang Yin naturally understood Gu Xue's kindness, so he didn't say much.

The two looked at each other without saying a word, and after they went back to their rooms, the morning episode passed like this...

....

At 8:30 a.m. EST, the BGI team set off on time for the Mathematics Olympiad at the East Campus of Harvard University.

At 9:00 a.m., everyone arrived at the venue of the East School Building.

Although many people can't understand mathematics, this does not prevent them from appreciating the confrontation between mathematicians, especially the students of Harvard University, who are the hosts, are full of expectations for this competition, and many people in the stands are holding the sign of Harvard University.

"Hello, you are the team of China Huaxia University, right? I'm Charlie Deley, the person in charge of the stadium, please come with me, your first game starts at 9:30, please get ready...."A blonde man greeted the BGI group, and the group followed him towards the top of the stadium stands....

..... (To be continued.) )