When you find the area of ​​a circle, there are two completely different results whether you know the formula or not.

Although the formula is very simple, you just don’t know how to do it, and you can only stare at the 3-point question.

Du Yu and Li Mengnan's minds seemed to be clear at once!

What about the radius? Square it quickly!

Where's π? Multiply it! Multiply it to death!

At this point, the two embarked on a turbulent journey of harvesting demon crystals. The word "harvest" is really suitable to describe it.

The two people’s “Formula for Seeking Demonic Crystals” is extremely simple and crude, and extremely practical!

As long as the demon crystal is obtained, the guardian beast will really stop attacking.

This was tested by Du Yu himself. A few hours ago, when he desperately grabbed the demon crystal on the ground, the vine whip thrown by the guardian beast Mu Dundun at his head stopped abruptly and immediately gave up the attack.

.....

Such a scene made the two of them extremely happy! The harvest journey began!

Among all the guardian monster pets left by the teachers, the one Du Yu liked to meet the most was the little orange pig.

reason?

This guy is fat, lazy, and lacks movement speed, which always gives Du Yu's team an opportunity to take advantage of him!

For example, at this time, Du Yu was mobilizing the "pig" to leave the mountain...

"Wake up!" Du Yu quickly fired the fire arrow from his bow with great accuracy, directly piercing the little orange pig's butt, "Wake up!"

It's a pity that the little orange pig is at the mortal level and at the peak level. Du Yu's fire arrow cannot penetrate its little butt. He can only rely on the fire demon breath brought by the fire arrow to invade the opponent's body, causing the demon breath in the little orange pig's body to tremble.

"Chi!" The little orange pig cried out in pain, raised its short legs, and exposed the demon crystal under its belly.

It screamed angrily and arched in Du Yu's direction.

Brave Bronze·Pig Crash!

The little orange pig's body was burning with flames, its nose was arching, and it was heading straight for Du Yu!

To be honest, this little guy is only a little higher than Du Yu's ankle. If he really wants to reach Du Yu's leg, who knows what will happen?

But Du Yu had already experienced it and didn’t panic at all!

I saw him taking a step sideways, quickly drawing his bow and setting an arrow.

Phew~

A blazing fire arrow appeared again, and at the same time, Du Yu's eyes became brighter and brighter.

The Eye of Burning Sun, the self-aiming eye, the head-locking eye!

"Bang!" The bowstring was stretched straight, and the fire arrow shot out rapidly.

Du Yu shot another arrow, turned around and ran away without saying a word.

And just as he was racing against the pig, the fire arrow crossed a distance of tens of meters and hit the demon crystal on the ground.

There is a crisp "ding" sound.

The irregular crystal-shaped demon crystal was fired away.

Behind the big tree on the side, Li Mengnan was hiding secretly, secretly observing the little orange pig passing by. She seized the opportunity and jumped out suddenly.

"Hey, hey, hey!"

I heard Li Mengnan let out a devilish laugh, imitating Du Yu, and suddenly raised the Black Wind Sword in his hand!

The wind witch doll that followed closely closed its eyes, and gusts of wind immediately blew away.

Brave Copper·Little Wind Blows!

The two winds merged and hit the passing little orange pig.

Phew~

After a gust of wind blew, the little orange pig was blown away.

Just when it turned around, what it noticed was not Li Laoliu, but the fiery red figure in the distance.

"Hey~" Xiaoyan jumped up, caught the flying seal demon crystal in his mouth, and pointed his big tail towards the ground.

Xiaoyan fell from the sky and sat on her own tail, bouncing over and over again before her limbs landed firmly on the ground.

"Huh?" The little orange pig suddenly froze on the spot.

It reacted for a while, then dug its nose into the grass, made a temporary nest for itself, and lay down again.

That heartless look is really enviable...

"Nice, the 9th one!" Li Mengnan happily ran towards Xiaoyan, chasing after the Feng Wu doll who was vying for favor.

Du Yu also stopped his escape, turned back, and carefully walked around the little orange pig, fearing that it would suddenly burst out and fly away.

However, he thought too much, and the little orange pig did not feel any psychological pressure.

Wherever the task fails, just lie down and rest for a while.

After all, I just ran for several meters, so I must be exhausted.

In fact, there are guardian beasts that move slower than the little orange pig, such as the wood demon pet Wooden Dundun.

It was just a small wooden stake. The little feet of the branches below the wooden stake moved very slowly, but they knew their own weaknesses and did not fall into the trap at all. They would only firmly protect the demon crystal.

How can it be like a little orange pig, slow and fond of humiliating people...

When Du Yu and the team met, Xiaoyan was shaking her furry little head and looking at Du Yu happily with a pair of fox eyes.

She touched it lightly with the tip of her tongue, exposed the demon crystal to her mouth, and showed off the trophy to Du Yu.

Du Yu gave a thumbs up at the right time.

He thinks his style has been determined, encouraging education!

Li Mengnan turned around and looked at Du Yu: "That's almost enough, right? We've both reached the western boundary."

"Well..." Du Yu looked up.

The sun is blazing in the sky, and the sunlight shines through the gaps in the leaves in bunches.

The beams of light fell on Du Yu's face, revealing a mixture of light and dark patterns.

It was already noon, and he and Li Mengnan were hungry and thirsty. Since they had 9 demon crystals in their hands, they should be almost ready, right?

In fact, Du Yu could have more demon crystals. While searching for big trees along the way, he encountered two groups of people, but Du Yu and Li Mengnan did not take advantage of others' danger.

Du Yu hesitated for a moment and said, "Then let's go to the finish line?"

"Based on your performance in the past three days, plus the number of demon crystals we have obtained, there is absolutely no problem!" Li Mengnan was full of confidence and gestured to the warning line not far away, "We will definitely be able to get out if we follow it.

Mountain forest.”

"Okay!" Du Yu had made up his mind. He and Li Mengnan took nearly 1/5 of the number of demon crystals and collected them as soon as they were ready to avoid unnecessary complications.

The longer you stay in the woods, the more likely you are to encounter robbers!

Du Yu himself started out as a robber, and the guaranteed demon crystal was provided by Wei Feng. How could he not understand the joy of robbery?

"Let's go, Xiaoyan, let's hand in the papers and have a feast!" Li Mengnan licked his dry lips.

"Hey!"

Lured by lunch and water, the two quickly headed north along the border.

Du Yu absorbed as much of the fire demon breath between heaven and earth as possible while observing his surroundings vigilantly.

There is no way, after all, he has several demon crystals in his possession. If someone snatches the test paper before handing it in, it will be a lot of fun.

Du Yu, who moved forward cautiously and looked around, was not ashamed of his caution! As he got closer to the end, he seemed to have discovered something extraordinary!

Is that... is that hair?

Du Yu frowned and hurriedly grabbed Li Mengnan's back collar.

"Uh~" Li Mengnan was running all the way, and when he was picked up by the collar, his neck was immediately strangled by the collar.

"Huh?" In fact, Li Mengnan was okay. The one who was really strangled was Xiaoyan who was lying on her collar...

Li Mengnan felt extremely distressed, always feeling that Xiaoyan's head had been strangled!

Her eyes widened and she turned to glare at Du Yu.

"Shh." Du Yu looked solemn and put a finger on his lips, making a gesture of silence.

Li Mengnan's heart moved. It was rare to see Du Yu being so serious. Most of his anger disappeared immediately, and he lowered his voice: "What's wrong?"

Du Yu dragged Li Mengnan and hid behind a tree, revealing half of his face, and carefully looked at the trees in the distance ahead.

Li Mengnan didn't dare to say anything, so she gently comforted Xiaoyan and told her to calm down.

In fact, not only was Li Mengnan holding his breath, but Gong Cheng, who was still watching the surveillance camera on campus, was also looking down.

His focus was on Du Yu. Since Du Yu's team gradually approached the finish line, although Gong Cheng had no expression on his face, he was secretly worried in his heart.

The micro cameras worn by the students not only have video and call for help functions, but also have positioning functions to ensure that when an accident occurs to a student, nearby teachers can provide rescue as soon as possible.

Therefore, Gong Cheng knew very well what Du Yu was about to face - an ambush!

The four boundary lines of the examination room form a rhombus, with one corner at the entrance and one corner at the exit.

As long as someone is ambushing in front of the finish line, they will definitely wait for all the students who come to hand in their papers.

At this moment, there were seven people hiding in front of Du Yu's right side!

There are many ways to pass the assessment, and these people have obviously fallen into the trap of others.

"Something's wrong." Du Yu withdrew his head and leaned against the big tree, "There's someone ambushing you."

Li Mengnan was shocked: "Stop directly at the finish line and rob all students of their demon crystals?"

Du Yu nodded lightly: "That should be the case, otherwise, there is no need for the opponent to stay before the finish line."

Li Mengnan whispered: "Who is so brave? You are so hated by others, and you are not afraid of being beaten?"

Du Yu thought for a while and guessed: "Maybe the enemy team has many people and is very confident? Or they only ambush a single player, who knows.

Anyway, I saw a girl’s ponytail, which had just been blown out by the wind, behind a tree.”

Li Mengnan nodded, with a worried look on his face: "The teacher seems to have said that no one is allowed outside the boundary line. It would be great if we could go around it."

Du Yu thought for a while: "Let's go back the way we came and try to find all the people in ambush."

Li Mengnan's eyes lit up: "Maybe we can be more stable and wait for the next team to come to hand in the papers. Once the ambushing people take action, won't their numbers and locations be exposed?"

Hearing this, Du Yu nodded repeatedly: "When the time comes, we can choose to help, or we can ambush each other, depending on the specific situation!"

"Yes, that's it." Li Mengnan's voice was trembling a little, and it could be heard that she was getting excited again.

Sneaking up to someone, that's the most exciting thing!
Chapter completed!