"I'm here to give you a start, unity is strength, sing!"

The students of the 7th Company followed the instructor's command and began to shout at the top of their voices: "Unity is strength, unity is strength, this strength is iron, this strength is steel, harder than iron, stronger than steel......

After the 7th company finished singing, the female soldier company was naturally not to be outdone and began to fight back: "The red sun is shining all over the east, and the god of freedom is indulging in singing......"

I have to say that the female soldiers' singing is much better than their 7 consecutive shouts.

But just because it sounds good doesn't mean you can win.

The 7th Company began the second military song: "Forward, forward, forward, our troops ...... to the sun."

With the three voices moving forward, the 7th Company completely raised its momentum, and the sound was louder than just now.

In the team, Chen Zhou, who was infected by the atmosphere, also blended into it and sang loudly.

The female soldier company also came to a song "Return from Target Shooting".

However, this song is obviously not as imposing as Chen Zhou's 7th Company.

Somehow, Chen Zhou suddenly remembered a song and hummed to himself: "The wolf smoke rises, and the rivers and mountains look north......"

And the people of the 7th Company, no matter who started it, followed and roared together.

The song "Loyal to the Country" is full of momentum!

And the purpose of the 7th Company is to overwhelm the female soldier company on the opposite side in terms of momentum!

At the end of the evening training, when the instructor checked the bed.

In Chen Zhou's dormitory, he patted Chen Zhou's shoulder with a smile: "Good job!"

Chen Zhou smiled a little embarrassedly, he really didn't expect that such a small voice could be heard by these people.

"All of them, stand upright, turn right, run and walk!goal, in the middle of the playground!"

Following the command of the white soldiers, the students of the 7th Company began to run in the middle of the playground.

Chen Zhou couldn't help muttering, what's going on?

Not only did Chen Zhou not understand, but the students of the 7th Company didn't know what Instructor Bai was going to do.

"Stand!"

"Turn left!"

"Take a break!"

"Arms outstretched, arm's length apart!"

In the middle of the playground, the 7th Company, which came here, followed the command of the white soldier and began to unfold the team.

"Today, I'm going to give you a special phalanx training!" Bai Bing's words cleared everyone's doubts.

"Chen Zhou!"

"Here!"

"Take a step forward!"

"Wang Tao, Xiong Kang, turn back! Step forward, turn back!"

......

Just when Chen Zhou was puzzled, the white soldiers gave orders one after another, and the formation of the entire team began to change!

"What are you going to do?"

Doubts resurfaced.

But after all the passwords were issued, Chen Zhou turned around and found out that this was a triangular formation?

Or is it an equilateral triangle......

The triangular queue formation is not uncommon, but in military training, Chen Zhou is still the first time to see it.

Chen Zhou guessed that it might be planning to train their 7th company and change the formation of various queues.

As Chen Zhou guessed, Bai Bing then began to give orders again.

The phalanx of the 7th Company constantly changed the formation of the queue according to the password.

Practicing the change of formation of the queue is a little more difficult than the usual training.

Moreover, when it came to the triangular queue formation, Chen Zhou became the tip of the team.

It stands out.

In the afternoon, the 7th Company was in the middle of the playground very abruptly, constantly practicing the change of queue formation.

When I went to the cafeteria in the evening, the students of the 7th Company complained one by one.

They have been following the password exercise, and they are so tired.

After finishing the meal, Chen Zhou and Zhao Qiqi sat together.

Zhao Qiqi looked at the food in front of him, although it was still hearty, but he didn't have a trace of appetite.

Seeing this scene, Chen Zhou smiled slightly, and sure enough, it was the same as he thought.

"Chen Zhou, why do you say the instructor is training us like this?" Zhao Qiqi said loudly.

"Hmm......" Chen Zhou glanced at Zhao Qiqi, "I don't know, why don't you ask the instructor?"

Zhao Qiqi: "Forget it, I don't dare to ask Instructor Bai, didn't you see what kind of training he did when he was training, and those who didn't do a good job were trained......

Chen Zhou took a bite of food and said, "Then hurry up and eat." ”

"Chen Zhou?"

"Huh?" Chen Zhou looked at Li Li, who suddenly called himself, suspiciously.

Li Li thought for a while and said, "Speaking of which, when practicing the triangular queue formation, looking at Chen Zhou standing at the front, I thought of something. ”

Zhu Mingli also asked suspiciously, "What is it?"

Li Li: "The pyramid, Chen Zhou doesn't look like he is on the spire." ”

Zhu Mingli: "When you say that, it's really a bit similar. ”

Zhao Qiqi: "The spire of the pyramid can represent Brother Chen's status." ”

Chen Zhou smiled: "Is the array like a tower?"

Suddenly, the smile on Chen Zhou's face converged, and he thought of something important.

Digital pyramids!

Arrange all positive integers into a triangular graph, and divide them into first, second, third, and all the way to the nth and mth levels.

The integer corresponding to each level is stored in a triangle.

The range of integers stored at each level is 2^0 to 2^1 for the first level, 2^1+1 to 2^2 for the second level, 2^2+1 to 2^3 for the third level, 2^(n-1)+1 to 2^n for the nth level, and 2^(m-1)+1 to 2^m(m→∞ for the mth level).

This mathematical model is known as the number pyramid A.

In Chen Zhou's mind, sparks of thought kept flashing.

So much so that his hand holding the dish hung in the air like this.

Zhao Qiqi and the three of them were also confused by Chen Zhou's sudden action.

"Brother Chen, what's wrong?" Zhao Qiqi asked in a low voice.

"I don't know. Zhu Mingli shook his head.

"Maybe something important came to mind. When Li Li said this, there was a strange look in his eyes.

"Do you want to call him? It's almost time for evening training. Zhao Qiqi looked at the two partners beside him.

As soon as Li Li was about to speak, he saw Chen Zhou's hand put down.

"Call me?" Chen Zhou's face was filled with joy.

"What's wrong with you, Brother Chen?" Zhao Qiqi asked with concern, he was still very worried that Chen Zhou wouldn't be stupid by military training.

Zhu Mingli also asked with the same concern: "Chen Zhou, are you okay?"

Chen Zhou smiled slightly, but didn't explain, but said, "Let's go, the evening training is about to begin." ”

Chen Zhou never imagined that this military training would give him an unexpected gain.

This number pyramid A is of great use!

After 14 days of military training, God was very powerful, and it was a rain that didn't fall, and they were tanned one by one.

With the completion of the formation change of the 7th Company, the 14-day military training can be regarded as a perfect end.

The 14th grade undergraduates of Yenching University also received a complete baptism of soldiers.

When they were about to bid farewell to the military training base, the comrades-in-arms of the 7th Company said goodbye to the white soldiers very enthusiastically.

Seeing that he had been leading the soldiers for half a month in one hand, the white soldier's expression was also a little excited.

and everyone in the 7th Company hugged each other.

Especially when it came to Chen Zhou, the white soldiers came to a bear hug.

Chen Zhou's performance in military training was particularly prominent.

The movements are clean, neat, and in place.

This is also the reason why the white soldiers put Chen Zhou on the tip of the triangular formation.

By the way, Bai Bing also praised Chen Zhou: "Good boy, when you are training, everyone else is lying down, you can still be alive, your physical fitness is good!"

Hearing Bai Bing's words, everyone else looked at Chen Zhou.

They also clearly remember that when they were all tired and lying on the playground, this mathematics student was the only one standing!

They can't figure it out, where do you get such good physical strength when you go to the library, study room, and girlfriend as a whole?