The villains are holding hands, shaking their hands

The exam begins and lasts three and a half hours.It includes fifty multiple-choice questions, fifty fill-in-the-blank questions, and ten big questions. The questions are very large and very difficult.

But fortunately, this is a bilingual exam paper. In addition to English, there is also a note paper in the native language, but the answers are uniformly required to be in English.

The first question is a mathematics question, the second question is international politics, and the third question is a mechanics question... This question can be said to have no rules. It keeps pulling people's thinking up and down, and it is even more difficult than it originally was. Adds a layer of difficulty.

Tang Zhi took a deep breath, calmed down and began to answer the questions.

After more than six months of hard work, two lifetimes of accumulation, knowledge that is nearly 40 years ahead of this era, and various blessings from the system, if she is still not as good as others, she will have to call herself a waste!
One hour, two hours, and three hours passed, and the atmosphere in the examination room became more and more tense, and at the same time it seemed to be a little more depressed and dejected.

Geniuses are not all-rounders, and all-rounders may not necessarily have a good mentality. Such an examination room, such a test paper, and such an exam are really too testing.

"There are only three minutes left!" The exam reminder was also very abominable, and he didn't speak until the last three minutes.

Tang Zhi rubbed her fingers and wrists. She finished the exam 10 minutes early. Visually, the others were still answering the questions. It was not until the last minute that two people put down their pens.

"Beep!" The sound of the end of the exam sounded, and the invigilator said in exactly one second, "Students, please put down your pens. Candidates who are still answering questions will be disqualified from the competition!"

After hearing this, no one dared to write again, and the five invigilators collected the papers together.According to the rules, seven teachers from different countries will be responsible for marking the papers, and each paper is guaranteed to be marked by three teachers.

If the scores are the same, there is no doubt; if the difference is no more than three points, the average score will be taken; if the difference is large, the remaining four teachers will review and review, and the average score of the three teachers with the closest scores among the seven teachers will be taken. .

"How do you feel?" Qi Zheng looked at the five tired candidates in front of him and asked in a deep tone.

Tang Zhi didn't speak, but looked at the other four people. Those four people looked good, but their fatigue was obvious. They should have done well.

Tang Zhi suddenly thought of a joke from later generations, as long as there are exams taken by Chinese people, you will definitely do well!
"Fortunately, [-]% of them will be metropolitan. The remaining [-]% depends on luck." Zhan Jiu felt dizzy during the exam, but felt good about himself.

She feels that the training in the past six months has not been in vain, and she has improved a lot.

The other three people also reported their numbers. One of them, a short boy wearing thick glasses, asked with a puzzled look: "I can get [-]% of the questions accurately. The big questions are too difficult, especially the math question. I remember the teacher said that the guess question asked by a master of mathematics was an unsolvable problem. Do you have an answer now?"

Qi Zheng didn't know if there was an answer. He looked at Tang Zhi with a questioning expression on his face.

Tang Zhi thought about it and was suddenly shocked. There was no answer to that question now, but it would be solved more than ten years later... And she had seen the formula for solving the problem from the book given by the system. !
With the support of the formula, it only took her more than ten minutes to answer the big question.

"What's your expression?" Qi Zheng asked with some confusion when he saw that Tang Zhi didn't speak, but had a complicated look on his face.

Is this possible or not?
"I calculated once and came up with a formula. After applying it... it is very likely that I got the answer right." And she is very likely to be the first person to answer the question correctly.

Thinking about it this way, is the person who wrote the test really cheated? He actually asked a math question that the correct answer cannot be calculated?

Moreover, this kind of question is so difficult that ordinary college students, even top students majoring in mathematics, may not be able to answer it.Damn, it’s really a trap.

"This is a good thing, why are you unhappy?" Qi Zheng was still a little confused.

Tang Zhi was not unhappy, but was calculating the possible reactions this incident would cause. An unsolved guessing question was written by one of her students...

Well, the first problem she has to solve is very likely to prove the correctness of her formula!
It is even very likely that the other party will directly judge her formula as wrong and will not even give her a chance to prove it!
Tang Zhi's mind was running rapidly, considering all the possible pros and cons, "Instructor, are any of the teachers in charge of marking papers from our country?"

"There is one."

When Tang Zhi asked, he wanted to let instructor Qi Zheng and the teacher have a break, so that his test paper wouldn't even have a chance to see the light of day.

But she quickly rejected this approach and instead looked at the person in charge of the organizer who was about to leave not far away. He was an elderly white man with gray hair.

"Mr. Mackenzie, please stay. I have something to talk to you about." Tang Zhi avoided the crowd and walked straight to Mackenzie.

Mackenzie was kinder, "You are a candidate, right? Do you have any questions?"

"I want to tell you about the question about the ninth guess in the test paper." Tang Zhi raised his voice a little higher so that others around him could hear it.

"Oh, what do you want to say?" Mackenzie's expression remained unchanged, but she had a suspicion in her heart that this little girl was probably here to protest, after all, it was an unsolved question.

When this question was first proposed, it was opposed by some teachers, who felt that unanswered questions were rogue and a waste of examination resources.

However, some teachers think it is feasible. Although there is no answer to this question, the problem-solving process is also an assessment. It can not only test the candidates' mathematical background, but if they are lucky, it can also provide new problem-solving ideas.

"I solved that big question, but I used the formula I calculated myself. I hope the marking teacher will not regard it as a wrong question." Tang Zhi said with certainty, "If necessary, I can calculate and solve the problem on the spot. formula."

As we all know, a formula is a shortcut, and anyone who can create this shortcut can be called a master.

But when this shortcut has not yet been recognized, the first team is always required to certify it. Those who are capable take the right shortcut, while those who are not capable may have turned a corner halfway.

"What? You deduced the formula of the ninth conjecture? Impossible, how old are you!" There was an old professor standing not far away. After hearing Tang Zhi's words, he shouted in disbelief. All over the examination room.

Those members of the media who had not yet left, like sharks that smelled the fishy smell, hurriedly gathered around!
……

Regarding the ninth conjecture, I considered using the name of a real mathematical problem, but both the question maker and the solver should have their own names, so I just wrote a number casually.