And hearing Dang Rui's words, Tang Xin said directly: "Shouldn't men protect women?" ”

Dang Rui listened and said: "That's the old society, now men and women are equal, everyone is half the sky, when you and I are together, don't you shout about independence, privacy, space, and self every day."

Then put me in the position of an independent pillar again, asking me this, asking me that, you don't want to be a canary in a cage, to be able to fly freely outside, and think that there is an owner who feeds you and feeds you every day, how can there be such a good thing? ”

Hearing Dang Rui's words, Tang Xin also said angrily: "You are a strong word, you have no ability, you chew words on both men and women, just reason with women like this, don't think about finding a girlfriend for the rest of your life!" ”

Hearing Tang Xin's words, Dang Rui said to Zhan Fei: "Ah Fei, did you see it?" She finally admitted that women are unreasonable, of course that's it, I didn't mean Sister Wanzi, I'll just say that she's unreasonable, Ah Fei, this kind of woman, don't let her get entangled, otherwise it's going to be troublesome! ”

When Tang Xin heard this, her face turned blue with anger and she gritted her teeth, while Qu Wanzi smiled and said, "You two like to quarrel so much, you really should get married and quarrel every day." ”

When the two of them heard this, they both looked at each other with disdain, and they seemed to be very disdainful of each other, and Zhanfei also shook his head and smiled bitterly on the side, these two people have a tacit understanding, maybe the next time they see them, the two will be reconciled again!

Zhanfei is not interested in inserting a foot between the two, this time I met with three old classmates in high school, it felt quite good, and for Tang Xin, Zhanfei also had no original idea at all, but it was Qu Wanzi who was originally like a buddy, which made Zhanfei feel a heartbeat.

Of course, Zhanfei is not in a hurry, after all, he will be in the capital in the future, he will also have a home, maybe he will often come to see his grandfather in the future, and there will be opportunities in the future, so Zhanfei said: "I will go to Jinghua University first, and I still have to train." ”

Hearing Zhanfei's words, Dang Rui said: "Ah Fei, your kid is really a friend, that kind of training must be very tight, you kid can still come to see us, go back quickly, have a good rest, don't delay this competition!" ”

Qu Wanzi listened, and also said: "Yes, this is a very good opportunity, we must seize the opportunity and perform well, this experience will be very helpful for the future." The two people who should have said it, Tang Xin could only send Zhanfei a word of caution on the road, and then, Zhanfei took a taxi to leave Kyoto Normal and went directly to Jinghua University.

After playing with his old classmates for a day, Zhanfei's mood was also a lot more relaxed, and he also decided to solve another puzzle, and then go to his grandfather's side, at that time, his alchemy and planting skills should also be upgraded, and then stay with his grandfather for a while, until he finished the competition in the capital, and then went back to Bozhou Institute of Technology.

At that time, it was also close to the final exam, and this time, the topic chosen by Zhanfei was also one of the three major problems in mathematics in the modern world, the four-color conjecture, and the four-color conjecture was proposed by a British college student.

The content is that if some contiguous finite areas are drawn on a plane, then these areas can be dyed with four colors, so that every two adjacent areas are dyed differently, and it has been more than a century since the four-color conjecture was proposed.

The four-color conjecture was first proved in 1976 by two mathematicians with the help of computers, and with the popularization of computers, the mathematical community can also accept computer-aided proofs, but there are still mathematicians who want to find more concise proofs or do not require the use of computers.

And Zhanfei naturally wants to challenge the computer with his own brain, to see if the 44-point intelligence value can solve the problem that others must use the computer to assist in proving.

Although Zhanfei has been exposed to a large number of mathematical literature and professional knowledge when solving the Goldbach conjecture, the Goldbach conjecture involves more knowledge of number theory, while the four-color conjecture tends to be topological direction.

Therefore, the process of solving Goldbach's conjecture did not help him, and for the next week, as before, he was still immersed in the sea of books, and by the way, every day before resting, he used up his vitality points.

The days passed like this, and on the sixth day, Zhanfei was racking his brains to think about a key question, when suddenly a gust of wind blew.

And the irregular map that Zhanfei drew by himself filled with four colors also fell to the ground, and then folded together, and Zhanfei's eyes also fell on the four-color map that was folded together, this scene, like a light, suddenly shone into his mind, and Zhanfei's world also lit up all of a sudden.

With excitement and even some trembling, Zhanfei recorded his inspiration for this moment, because he felt that this step would be an extremely important point for him to prove this proposition!

Next, Zhanfei carefully sorted out his problem-solving process, and thought, and soon, Zhanfei quickly began to write, that inspiration is really the most critical step, the most important step to solve the mistakes of his predecessors!

The four-color conjecture has been proved by several mathematicians, and its methods include the fallacy method, etc., and later, these methods have been disproved to be wrong, and this seemingly simple problem is actually a difficult problem comparable to Fermat's conjecture.

And now, Zhanfei finally found that without the help of a computer, directly prove it, the most critical point, therefore, this problem, was finally solved by him, which lasted eight days, which took one day more than Goldbach's conjecture, and then, Zhanfei took a large number of drafts of his calculations, and then went back to his bedroom.

Today, he was ready to go to his grandfather's side, because by now, Zhanfei's cultivation and alchemy proficiency had reached ninety-nine percent, and he was just one short of being able to level up!

Guo Shi's kid is still training, so there is no one in the dormitory, and Zhanfei also closed his eyes, and three seconds later, the attribute panel appeared.

Next, Zhanfei directly used his vitality value today for planting and refining medicines, and half an hour later, Zhanfei's package had once again added hundreds of primary healing potions.