I really don't want to lie down and win

Xu Mang and his party boarded the plane and began their next journey.

...

get off a plane,

He took the bus directly to Princeton, because he had reserved a room in advance, so he only needed to check in with his bags. However, Xu Mang encountered a little trouble because he was temporarily inserted as a teaching assistant and there was no room for him.

In the end, they could only live in the same room with Xiaoman. Professor Wu knew that the two were lovers, so he simply turned a blind eye, and still did not forget the kind reminder.

"Don't stay up late at night, don't do anything unrelated to rest." Professor Wu said seriously.

Xu Mang:? ? ?

Yang Xiaoman:? ? ?

Soon the two of them understood the meaning of Professor Wu's words.

This night,

Nothing happened.

The next day,

Princeton University,

It was the first time for Xu Mang to feel the atmosphere of a famous private research university, but the house was a bit old... It always felt like a house of more than 100 years. Although it was quite classic, it felt a little dangerous.

Due to the tight schedule, after Xu Mang participated in the opening ceremony as a teaching assistant, he began to help Professor Wu to guess the questions.

The rules of the game are simple,

There are only two days, and there is only one paper for each day, with fifty questions on the paper, a total of one hundred questions.

out of five hundred,

Individual awards will be awarded with the highest score, and then ranked in order, and group awards will be ranked in order based on the total scores of five people.

at this time,

Xu Mang opened Shi Jie's notebook in the team, connected to the hotel's wireless network, and downloaded nearly ten years of PUMaC questions. He wanted to work with Professor Wu to make a systematic summary of all the questions in the past ten years, and then based on the probability Learn and count the probability of tomorrow's topic.

"According to previous years' experience, the first ten questions are sub-questions, and the last five questions are proposition questions, so the key point for winning is the middle 35 questions." Professor Wu said: "Geometry and number theory accounted for 80.00%, algebra questions only Occupied 20.00%."

"so."

"We strengthen the analysis of geometry and number theory." Professor Wu said, "Xiao Xu, is your number theory good?"

"what?"

"It's not bad." Xu Mang nodded, and said silently, "But...professor, I think the proportion of questions this year will change a lot."

"Oh?"

"Talk about your opinion." Professor Wu asked curiously.

"I took a closer look at the topics of the past ten years." Xu Mang frowned and said, "The first three years were very targeted, but from the fourth year onwards, the topics became a bit weird, until the seventh year , and began to develop comprehensively.”

"Especially last year's topic, the ratio of singleness to comprehensiveness was [-]-[-]." Xu Mang said, "I think... this year's topic is either [-]-[-] or [-]-[-]."

"Ok!"

"If it is comprehensive, it is very difficult to bet on the subject." Professor Wu said: "I have heard before that the current trend is to cultivate students' comprehensive ability, especially in the field of mathematics."

Xu Mang had also heard of this argument, and he especially believed in this argument, although it violated the so-called single superiority and directly set its comprehensive benefits.

But in Xu Mang's explanation, science is the foundation of human development, and mathematics is the foundation of scientific development. Taking his own physics as an example, it's really useless to only know geometry, and sometimes you have to use combinations.

noon,

After having lunch with the members of the representative team, Xu Mang nestled in the hotel room, constantly trying the possibility of tomorrow's topic.

then,

closed.

"The system...can you tell me tomorrow's topic?"

Can not

"The system...can you tell me and Xiaoman whether the child is a boy or a girl?"

can

Xu Mang: Σ`д'ノノ

What the hell!

Your system is very broken!

Can tell me the gender of the future child, but can't tell me tomorrow's topic?

Xu Mang was so angry, what was meant to be a joke turned out to be a heart-piercing pain.

Whoops...

This heart...wow cool wow cool.

In the end, Xu Mang gave up the unwise practice of guessing a hundred questions. In terms of probability, this possibility was too small, so they had to rely on their own strength.

of course,

It was impossible to predict the overall situation, but Xu Mang could make precise strikes on the local area. For example, the last five major questions add up to ten.

If you rely on scientific means, you can guess three out of ten questions, or even more questions.

"Let's work!"

...

When Yang Xiaoman came back from shopping and saw Xu Mang sleeping soundly in front of the computer, he couldn't help showing a helpless expression.

"It's probably because the account has been blocked again..." Yang Xiaoman sighed: "It's so good to play a game."

He took a blanket and was about to drape it over Xu Mang's body, when he saw ten math problems on the laptop screen.

"Ugh?"

"what is this?"