Chen Junxian lay quietly all night.

It was really lying all night, not doing anything, just watching the stars in the sky circulate and the clouds rolling.

It wasn't until four or five o'clock in the morning the next morning that he lifted his change state.

The reason why he acted like this was because he was afraid that Yang Xin would kill him.

Be cautious in the cultivation realm and live a long time.

After waiting for so long and not moving, Chen Junxian was basically sure that there was no danger, so he ran down the mountain with his foot power, and he didn't even use the technique of turning rainbows, for fear of causing unnecessary trouble.

When he reached the foot of the mountain and rushed out for dozens of miles, he looked around and saw that there was no one, and then he recognized the use of vertical golden light in the direction of Bianjing City.

The golden light of the vertical earth is a rare supernatural power in the world, the speed is incredible, it is rumored that the cultivation is advanced and the people can use it, even if the earth fairy realm can travel all over the world in a short time.

Chen Junxian definitely can't reach such a fast speed at the moment, but he can reach this hundreds of miles in an instant, which is much faster than the Rainbow Transformation Technique.

Bianjing.

It's a huge city.

Chen Junxian stood under the towering city wall and looked around, and found that this city was estimated to be hundreds of miles away from the south city wall alone, and there was a huge light curtain like a big iron pot upside down above the city, which was a large defensive array at a glance.

Because this is at the foot of the emperor, the three gates of the southern city are heavily guarded, all of them are wearing forbidden army uniforms, and the lowest cultivation is the foundation building period of the Great Perfection, in addition, there are some generals in the Jindan period who seem to be the deputy commanders, and even Chen Junxian also saw that there were Yuan infant period commanders on the city wall from time to time who kept walking around and patrolling.

Obediently, the commanders of the city are all in the infancy.

Chen Junxian was speechless.

I have to mention here that the formal army of the Great Song Dynasty is the forbidden army and the box army, while the township soldiers and the vassal soldiers are not the official establishment, the forbidden army is generally the central army, and the box army is the town soldiers of each state.

He sighed a little and walked towards the city.

Even if it will be more than five o'clock in the morning, the number of people entering Beijing is still huge, and there is a long queue at the city gate.

"Take it out."

There are forbidden troops guarding the city shouting ahead.

If Yuezhou must go to the yamen to write a declarative text, where people go to do what, the yamen will issue a public certificate after registration, which is also called a certificate.

When you go to the place, if you want to stay permanently, you have to go to the local yamen to apply for a resident certificate, write down where the person's household registration and even the tax situation are, a bit like a temporary residence permit on the earth, and if you have paid taxes in the local area for three years, you can apply for naturalization, because of this, the housing price in Bianjing remains high.

Chen Junxian silently took out the luke.

It took almost an hour for him to check the way.

While using special magic weapons to identify the authenticity of the road lead, the forbidden army also observed Chen Junxian's appearance, and by the way, he also talked about the rules after entering Beijing, such as not being allowed to fly without a flight order, if you want to break through the current realm, you still need to go to the practice room run by the government to allow you to break through the realm, probably afraid that someone will break through the realm and cause huge movements and hurt the innocent.

There are quite a lot of rules, and Chen Junxian has listened to about a dozen rules.

"Remember?"

"Remembered."

"Well, let's go inside."

After inspecting the forbidden army, they returned the road to Chen Junxian.

He took the lead and walked inside the city gate.

As a result, as soon as he stepped into the city gate, a man's voice came from his ear, "Excuse me, is it Mr. Hua Xuanjihua?" ”

Chen Junxian looked sideways, and in front of him was a middle-aged man who was a fat man dressed like an outsider, "Sun Yuncheng?" ”

"Mr. Hua, it's just a contemptible." The middle-aged man said respectfully.

Oh, it turned out to be the junior brother of the old immortal of the South China Sea.

Before, the old immortal of the South China Sea said that he would let the junior brother in the middle of the Yuan infant period be his staff, and now he finally saw him.

Chen Junxian asked curiously: "Mr. Sun, the old immortal is self-taught by inheriting the immortal system, why are you his junior brother?" ”

Sun Yuncheng explained with a smile: "More than 10,000 years ago, my senior brother founded the Nanhai Sect to accept apprentices, and he saw that I was still talented and good, so he joined the sect. ”

I see.

Chen Junxian understood, and said, "Are you familiar with Jingshi?" ”

"Familiar, where is Dong Weng going?" Sun Yuncheng changed his words quite quickly, and became Chen Junxian's subordinate by default.

"Let's go to the Martial Arts Division first." Chen Junxian said as he walked forward: "I have a lot of dealings with the martial arts envoy Wang Xingshou, and I will definitely pay a visit to the capital today, so as not to lose my courtesy." ”

The eunuchs of the Great Song Dynasty did not like to be called "father-in-law", and generally called him an official position, although Wang Jien was a martial arts envoy, but his higher title was the head of the inner servant, so Chen Junxian had to call him "Wang Xingshou".

"Good, Dong Weng, please come with me."

Sun Yuncheng took the initiative to lead the way.

……

After walking for about half an hour, the two came to their destination.

Chen Junxian looked at the huge imperial city and said a little speechlessly: "Wu Desi is in the imperial city? ”

"Yes Dong Weng, Wu Desi is inside the Imperial City's Zuo Chengtian Gate, don't you know?" Sun Yuncheng was quite surprised.

Chen Junxian definitely doesn't know, he is not from this world.

However, he knew that Wu Desi had great authority, and he was the emperor's minions, specially used to contain the "Su Guard" and the Privy Council, and also had the duty of supervising hundreds of officials in the world.

The guards refer to the guards of the palace ban.

The Privy Council was the highest military institution in the Song Dynasty, and shared the military and political power in the world with the Zhongshu, known as the "Second Government".

Today, the Privy Council is served by Cao Bin, the founding general.

"Who are you waiting for?" A Jindan period forbidden soldier stepped forward to ask.

Sun Yuncheng hurriedly said: "Back to the military master, my family Dongweng came to visit the martial arts envoy Wang Xingshou, and I hope that the tired military master will give a report." ”

"What's your Dongweng's name?" The Praetorian asked again.

Chen Junxian took the initiative to step forward and said, "My surname is Hua Xuanji. ”

"Yo, it turns out that you are Hua Xuanji?" The forbidden army glanced at Chen Junxian in surprise, and then said with a smile: "When Your Majesty left the palace the day before yesterday, he talked about you with Zhao Xiang and the others. ”

The few Imperial City Forbidden Army standing guard next to him all looked curious, and seemed to be very interested in Chen Junxian.

Chen Junxian didn't expect that he would be known by so many people as soon as he entered Beijing, and he couldn't help but feel quite proud in his heart, and said in his heart, look, what is an international superstar, and what is a cultural and sports flower...... Well, well, anyway, I'm a little famous in the capital.

"Exactly down there."

Although Chen Junxian was proud in his heart, he was still humble when he spoke.

"Mr. Hua, please wait, I'll go and report to Wang Xingshou."

The forbidden army entered the imperial city.

Chen Junxian and Sun Yuncheng stood outside the imperial city and didn't speak, mainly because this is the imperial city, and it is close to Wu Desi, who knows if the remarks will be heard and misinterpreted.

Fortunately, it didn't take long for the forbidden soldier to come out, "Mr. Hua, Wang Xingshou is invited, please come with me." As he spoke, he looked at Sun Yuncheng again, "You can't go in." ”

"Yes." Sun Yuncheng responded.

Chen Junxian knew that the imperial city had the rules of the imperial city, and not everyone could enter it, and he was able to be invited into the imperial city by Wang Jien, which was already considered to be face-saving.

The imperial city is not big, and Chen Junxian estimates that it covers an area of six or seven square kilometers, which is pitiful compared to the huge Bianjing.

Naturally, they didn't have to walk long to reach the gate of Wu Desi.

There was already a middle-aged man dressed as a golden eunuch at the door, and as soon as he saw Chen Junxian coming in, he enthusiastically stepped forward and said, "This must be Mr. Hua, right?" I am Li Shenfu under the head of the king's line, we have seen it. ”

Have we met?

Chen Junxian suddenly thought of the man in black who had given him medicine before, and he hurriedly said, "Thank you Li Zhiban." ”

Among the Wude Division, in addition to the highest position of the Wude Envoy, the next is the deputy envoy of the Wude Division, and the third highest position is the Escort Division, so this eunuch Li Shenfu actually has a high status, and ordinary people can't get it.

Chen Junxian naturally wanted to be polite.

Li Shenfu was very satisfied with Chen Junxian's attitude, took his hand and walked in, and said with a smile: "Mr. Hua is polite, I have admired you for a long time, and I will have more time to interact in the future." ”

"I've admired Li Jiban for a long time, and I will definitely have more contacts if I have the opportunity." Chen Junxian also said flattering words.

The two of them were touting each other all the way, saying all things that were not nutritious.

When he came inside, Li Shenfu pointed to the conference hall, "Wang Xingshou is working inside, Mr. Hua go in, remember to knock." ”

This is also a kind reminder.

"Thank you."

Chen Junxian thanked him and came to the door.

He reached out and tapped lightly on the door.

Knock, knock.

A high-pitched voice came from inside, "Come in." ”

Chen Junxian pushed the door in, only to see a tall man with a sparse and majestic jaw writing something with his head down.

Generally speaking, eunuchs do not grow beards, but this is not an absolute thing, in fact, under normal circumstances, every thirty eunuchs will have a long beard, which can lead to a variety of reasons, such as castration is not exhausted, or castration is only done after adulthood, and there is a natural high male hormone.

This is the cultivation realm, and the situation is a little different.

Generally, it is very likely that a caster with advanced cultivation will grow a beard, but it requires a high level of cultivation, such as the transformation period.

It turned out that Wang Jien was a monk in the Transformation Period.

It is also true that if it weren't for the giant of the Transformation Period, it would be impossible for him to be in charge of such an important department as the Wu De Division, after all, this department is too important, in addition to protecting the emperor's safety, he also has to supervise the situation of hundreds of officials in the world.

Chen Junxian secretly paid attention.

Wang Jien seemed to be very busy, and he didn't look up for half an hour.

Chen Junxian didn't know if the other party was testing himself or was really busy, so he simply endured it.

Finally, Wang Jien raised his head and said, "Brother Hua, there are two maths here that we can't do, so come over and help me take a look." ”

"Whoa."

Chen Junxian stepped forward.

Wang Jien casually pushed the bamboo slips over.

Chen Junxian stood on the edge of the table and looked down, only to see the title written on it: "I don't know the number of things today, the remaining two of the three or three numbers, the remaining three of the five or five numbers, and the remaining two of the seven or seven numbers, may I ask the geometry of the object?" ”

What does that mean?

Let's just say that there are some items, I don't know how many there are, if you count three or three, there will be two more, if you count five or five, there will be three more, and if you count seven or seven, there will be two more.

Q: How many of these items are there?

This is a difficult math problem for the ancients.

But it was too simple for Chen Junxian, and he said almost without thinking: "Twenty-three." ”

Wang Jien glanced at him in surprise, as if he didn't expect to answer so quickly, he pointed to the next question, "What is the solution to this question?" ”

Chen Junxian continued to look over.

The title is as follows: Now there is a wall five feet thick, and two rats wear it together. Rats are one foot a day, and mice are also one foot a day. Rats are doubled daily, and mice are doubled daily. Q: When will we meet? How much do you wear?

What does that mean? That is, there is a five-foot thick wall, and two rats burrow each other, and the big mouse can dig one foot on the first day, and the small mouse can dig one foot on the first day. And every day after that, the speed of the big rat was twice as fast as the previous day, and the rate of the small rat was half that of the previous day. Ask how many days the wall will be opened, and how many big and small mice have dug up.

This question is a bit difficult, not to mention that for ancient people, even people who have not studied mathematics in modern society will not.

To put it bluntly, it is a problem of encountering variable speed motion, but the mathematical methods of the ancients were limited, and there was no such tool as the algebraic function of the present, so it was not uncommon for the ancients to do it.

In fact, not all ancient people would not do it, according to Chen Junxian's knowledge, someone in ancient times invented the "surplus deficiency technique" to solve this very difficult problem.

Fortunately, Chen Junxian will, but it will be a will, and he can't answer as quickly as he did just now, and he still needs to take time to do mental arithmetic.

Ten seconds.

Thirty seconds.

One minute.

Wang Jien seemed to be waiting a little impatiently, "If you can't answer, forget it." ”

It's not that Wang Jien didn't give Chen Junxian time, but that this problem was almost unsolvable in the Great Song Dynasty, and basically no one would do it.

Naturally, he didn't expect Chen Junxian to do it.

It's just that Wang Jien has high expectations for Chen Junxian, and seeing that even Chen Junxian can't do this question, he seems a little disappointed.

As a result, as soon as he finished saying this, Chen Junxian replied: "Return to the king's head, three days." ”

Wang Jien really didn't know the answer, so he humbly asked: "Brother Hua, how to solve it?" ”

Chen Junxian was neither arrogant nor humble, and analyzed it again.

It probably means that on the first day, the big mouse hit one foot, and the small mouse hit one foot, a total of two feet, and there were three feet left; The next day, the big rat hit two feet, and the little mouse hit 0.5 feet, and this day a total of 2.5 feet, and two days a total of 4.5 feet.

On the third day, it stands to reason that the big mouse hit four feet, and the small mouse hit 0.25 feet, but now only 0.5 feet has not been opened, so the third day can definitely open the wall.

Because this question involves practical problems, it can't be directly said that the time spent is a few days and hours, but can only answer the number of days it takes, and Chen Junxian only answered three days.

As for how thick the wall is for the little mouse and the big mouse, he has already made it very clear when he answered just now, it is nothing more than to set the big mouse to hit X ruler and the small mouse to hit (0.5-X) ruler, and then assume that the hole time is equal.

The final answer was that the big rat hit 8/17 foot on the third day, and the small mouse hit 0.5-8/17 equal to 1/34 foot.

In the end, the answer to how many feet of holes the big mouse hits, and how many feet to reduce the size of the mouse with a total of five feet, comes out.

After hearing this, Wang Jien clapped his hands again and again and exclaimed: "Wonderful! Wonderful! It is worthy of Hua Jieyuan! The undergraduate will try to calculate our family, and I'm not afraid that you won't be able to pass! ”

Yes?

Is this the question of the exam?

Chen Junxian never thought that Wang Jien would be so bold and dare to reveal the topic to himself before the exam!

However, he knows that there is no free lunch in the world, and since Wang Jien risked the world's condemnation to leak the topic in advance, it will not be easy to ask him to do something.

Chen Junxian listened quietly, wanting to hear what Wang Jien would ask him to do.