Soon, Lin Muxue carefully stretched out her head from the locker room.

The moment he saw Jiang Qiye, he immediately shyly retreated.

After about half a minute, Lin Muxue covered her face and slowly walked out of the locker room.

The moment Lin Muxue came out, Jiang Qiye's eyes lit up. Lin Muxue was wearing a black stagnant reservoir swimsuit, and her tight swimsuit outlined a proud curve to Lin Muxue's initial size.

Lin Muxue blushed, felt Jiang Qiye's scanning gaze, and turned her head to glar at him.

Facing Jiang Qiye's fiery gaze, she simply put down her hands and generously showed her figure. Anyway, the swimsuit didn't expose anything except her legs, but.

Lin Muxue's eyes instantly became hooligan, and she scanned Jiang Qiye's body randomly, making amazement in her mouth.

She remembered that the last time she accidentally saw Jiang Qiye's abdominal muscles, it was a few months ago. The abdominal muscles on her body made Lin Muxue saliva almost flow out.

“Hey.”

Jiang Qiye really couldn't stand Lin Muxue's gaze.

Her eyes made Jiang Qiye feel as if he was looking at the goods, which was outrageous.

This woman is so hooligan that she really has nothing to do with men.

Looking at Jiang Qiye's shy little look, Lin Muxue laughed instantly, and the blushing on her face completely faded.

With his smooth long legs, he walked to Jiang Qiye's side, reached out and poked Jiang Qiye's abdominal muscles, "Wow, how did you practice?"

"Don't you achieve this effect by exercising for an hour every day?"

Feeling that Lin Muxue's little hand was already wandering around his abdomen, Jiang Qiye instantly blushed. He couldn't stand the unscrupulous Lin Muxue, so he grabbed her little hand and said, "Stop touching, apply sunscreen first."

"Yeah, let's go!"

Lin Muxue smiled. This period is the off-season for tourism, and there are not many people on the beach, so there is no need to worry about being taken advantage of when traveling.

······

Half a month has passed when Jiang Qiye and Lin Muxue are preparing to return to the mountain city.

"Oh, I want to go to Mount Tai again!"

Lin Muxue held Jiang Qiye's arm and leaned on his shoulder. He looked up at the flight information on the boarding pass, and said coquettishly to Jiang Qiye.

"It's okay, we'll go again next time we have a chance."

Jiang Qiye comforted Lin Muxue for a moment.

According to the plan of the two, we had to continue to go to a few more places.

But last night, Lin Xiao called the two of them directly and asked them to come back quickly, otherwise he would fly over and find them.

Because of Lin Xiao’s phone call, the two had to temporarily interrupt their trip plans and prepare to go home.

The main reason is that Lin Xiao’s tone is indeed a bit scary. In the past half month, the two flew all the way from Hainan to Tanggula Mountain.

Flying from the south of the sea to the top of the earth, I saw many different scenery from the mountain city, and I also saw all kinds of people.

In particular, the devout pilgrims along the way on the Tanggula Mountain made Jiang Qiye feel a sense of shock.

For half a month, Jiang Qiye never deliberately thought about anything about learning, and just simply accompanied Lin Muxue to play all the way.

Not to mention anything else, Jiang Qiye and Lin Muxue's relationship has progressed rapidly.

Except for the last thing not done, the two have done all the work between the couple.

In fact, Lin Muxue was not rejected, but Jiang Qiye gave up on himself, because he felt that both of them were still too young now, and as long as there was no last relationship, there was still a way out.

"Let's go, it's time for us."

Jiang Qiye held Lin Muxue's waist, dragged a suitcase, and walked towards the boarding gate.

Looking at Baiyun and Lin Muxue's delicate little face outside the window, Jiang Qiye felt a little satisfied.

In such a relaxed state, a light of inspiration suddenly flashed in his mind.

In the past half a month, Jiang Qiye has been deliberately not thinking about learning any knowledge.

However, at this moment, countless knowledge came into my mind, and a flash of inspiration flashed, and I understood everything I didn’t understand in an instant.

He quickly moved the method of proof of Jiaogu's conjecture from the depths of his memory and studied it one by one.

Many things that I didn't understand were solved at this moment.

“Oh~”

Jiang Qiye came to his senses, turned to look at Lin Muxue who was already asleep peacefully on his shoulders, and laughed.

Perhaps feeling Jiang Qiye's gaze, Lin Muxue shook her nose slightly and moved the corners of her mouth. This unconscious action was so cute in Jiang Qiye's eyes.

After staring at Lin Muxue for a long time, Jiang Qiye closed his eyes, leaned on his chair, and sank into his spiritual world to continue studying the Kaoru conjecture.

One day in 1976, the front page of the Washington Post reported a math news.

The article tells a story: In the mid-1970s, people on campuses of famous universities in the United States were like crazy, day and night, and day and night to play a math game. This game is very simple: write a natural number N (N≠0) at will, and change it according to the following rules:

If it is an odd number, the next step becomes 3N1.

If it is an even number, the next step becomes N/2.

Not only students, but even teachers, researchers, professors and scholars joined.

Why does this kind of game last forever? Because people find that no matter how non-zero natural number N is, it will eventually be unable to escape back to the bottom of the valley. To be precise, it cannot escape the 4-2-1 cycle that falls into the bottom, and it will never be able to escape such a fate.

Everyone can start from any positive integer and perform the following operations continuously. If it is an odd number, multiply the number by 3 and add 1; if it is an even number, divide the number by 2.

If you continue to calculate this, it will not be considered as the end until you get 1 for the first time.

Can every positive integer be calculated according to such rules and get 1? This is the Sygul Conjecture, also known as the "hail conjecture, the horn valley conjecture". Including the later Kratz problems, they are all interesting '3X1' problems in the mathematics community.

Foreign countries like to call the '3X1' problem the Sygula conjecture or the hail conjecture, while in China it is called the 'Kao Valley conjecture' because it is a Japanese named 'Kao Valley', which spreads the problem to China.

This question sounds simple, but it is not easy to prove it.

Over the past few decades, many top mathematicians have invested a lot of energy but have not been able to make rigorous proofs.

So guessing is still just guessing.

but.

Now, Jiang Qiye has dared to pat his chest to ensure that this math problem will be solved in his own hands.

Maybe it was because I fully understood the proof process of this conjecture.
Chapter completed!