In the computer class, Yan Bingbing has never laughed so crazy, the whole time is staring at the new teacher, I don't know if it is "the lover's eyes out of the West", she even felt that the new teacher's every move revealed a kind of gentlemanly style, simply confused.

“Who knows how to go through this binary tree?”

The voice of the new teacher just fell, and Yan Bingbing immediately raised his hand: "I know!I know!”

The new teacher smiled and nodded her, and after she stood up, she once again felt the strange eyes of the whole class of students, at this time, she was a little less obsessive, but...

“Excuse me, what is a binary tree?”Hush!Although I want to perform well in front of the handsome teacher, it is very helpless, her brain is a grass bag, and a little knowledge in the book can't think of it!

Now she is standing here, especially embarrassed.

‒▽.

Everyone looked at her, as if looking at a fool, her cheeks suddenly burned up, the first time I felt how stupid, half of the computer knowledge do not understand?Even if you know a little!

She especially wants her to stand up, her smile is full of confidence, her head is high, her back is straight, her mouth is hanging, she answers the new teacher's questions like running water, and the new teacher looks at herself - not like now, looking at herself with the eyes of fools, and she is into the ranks of "stupid students".

Silent for a moment, the new teacher smiled and explained: "The binary tree is a connected acyclic map, and the degree of each vertex is not greater than 3.There is a root binary tree to meet the degree of the root node is not greater than 2.With the root node, each vertex defines a unique parent node, and a maximum of 2 child nodes.However, there is not enough information to distinguish between left and right nodes.If connectivity is not considered, allowing multiple connectivity components in the graph, such a structure is called a forest.”

Then he looked at her and said, “Now do you know what a binary tree is?”

“Hmm!”She nodded her head.

The new teacher waved his hand and said, "Sit down."

She sat down, her cheeks hot, although this part of the story happened is only three minutes of things, but in her mind constantly around, replay, every aftertaste, cheeks become more hot...

The new teacher is gentle.

The new teacher is very good.

The new teacher did not trouble himself.

The new teacher is very inclusive.

The new teacher has just looked at his eyes and smiles.

There seemed to be a lot of sounds in my head that were accompanied by replay pictures that kept shouting, buzzing, how to finish this class, until the bell rang, Yan Bingbing did not know what the matter was!

I only know that when I left class, when everyone packed up and prepared to leave, she looked up and saw that the new teacher was already standing in front of her desk, against the light, as if she had brought the aura of the beauty of the world.

“The ice, isn’t it?Is there free time?How about we talk in private?”The new teacher said.

“Hmm!”She looked at him, nod her head like a fool.

After a while, the students are gone, there are only two of them in the classroom, and at this time, the new teacher only spoke, said the most afraid words of Yan Bingbing's life: "I heard that you are the worst student in the course of C language, the national computer second-level exam is coming, your homework is so bad, how do you plan to cope with the computer second-level exam that is ready to arrive?" 」

Rumble!

Yan Bing felt instantly that his image had completely collapsed in the eyes of the new teacher!

It is over,

In terms of her pig brain, other homework is good, but when she encounters a computer test, that is, how to endorse how to pass the exam, it is estimated that in the eyes of the new teacher, his image will always be two words of collapse.

“The poor!”

‒▽!

Unable to wait for the response, the new teacher smiled helplessly and said, "There is still a week to go to the second-level exam, if you don't mind, I can give you a tutor."

He paused and said, "The computer second-level exam is a computer basics exam, in fact, it is not difficult, within a week, as long as you pay attention, you should be able to pass."

Stupid!

Hearts are angry!

It looks like there are fireworks!

Yan Bingbing opened his eyes and asked with surprise and joy, “Teacher, is what you say true?”Can I pass the exam in a week?Could this be too difficult?I haven’t passed a computer exam once in every computer!”

The new teacher smiled and asked, “Are you not confident in yourself?”Or do you not trust me?“I don’t think I’m capable of getting you to pass the exam in a week?”

“No, not yet!”Yan Bing Bing explained in a panic, "I am not confident in myself!I don’t think I’m that smart enough to take a second-level computer exam!”

The new teacher smiled and said, "You think the exam is too complicated, this is the national unified test, the main points of the exam are almost every year, even if you are not proficient in computers, but rote memorus can also cope with the exam?"And this exam is a qualification certificate, don't you take 100 points, as long as you pass 60 points, can't you take a 60 point?"

“Uh-huh...” The ice cream is good!

She lowered her head and did not dare to look up at the new teacher, and felt that she was a fool!What a fool!Totally 10 idiots!

60 minutes is really that hard!Oh wow!

“Oh!”

She heard the new teacher's heavy sigh and said, "I will accompany you to make up, no matter what, try your best, okay?"

“Hmm.”She nodded her head in shame.

The new teacher laughed, “Starting now?”

“Hmm.”

However, as soon as the voice fell, the iced stomach groaned, and she blushed.

Damn, how do you feel like you’re in front of a new teacher?

Even if the brain is stupid, even if it is not even the stomach?What should she do with her new teacher?Oh wow!

The new teacher smiled and said, “Yes, it’s lunchtime now, or else, let’s go eat something first.”“When you’re filling your stomach and start reviewing?”

Yan Bingbing was embarrassed and wanted to save her image, she said: "However, there is still a week to go before the exam, the time is so tight, I am worried that I can't review..."

The new teacher said, "The exam is not in a hurry, just didn't I say it?"Computer second-level exam is very simple, a week time is definitely enough for you to take a 60-point, eat a little time, will not delay your review.I invite you to eat this, it is to encourage students to take a good exam, how about?”