After meeting Han Shiqi again, out of politeness, Xiao Ran did not continue to walk, but sat with him.

After all, this uncle has also pointed out himself.

But as soon as he sat down, Xiao Ran saw that the uncle seemed to be holding a math book in his hand.

《1+1=？ 》

Goldbach's conjecture?

Seeing this, Xiao Ran was naturally a little curious: "Uncle, what about studying math problems?" ”

Hearing Xiao Ran's question, Han Shiqi replied with a smile: "I'm retired, I'm bored, and I'm just a hobby of mathematics." ”

After finishing speaking, he put down the book, and then asked Xiao Ran, "Is the Olympiad exam over?" ”

"Hmm." Xiao Ran nodded, "I just finished the exam this morning." ”

"How's it going?"

"It's okay." Xiao Ran said with a smile.

"It should be pretty good." Han Shiqi pointed to the book in Xiao Ran's hand and said with a smile, "I see that you have come to borrow the tutoring book again, do you want to prepare for the rematch." ”

"Yes, uncle, in fact, I want to thank you, the book you recommended to me that day is really good."

"Hehe, you're welcome, but I heard that this year's Olympiad questions seem to be a bit difficult, have you done them all?" Han Shiqi asked.

"Well, it's all done, and I feel okay overall." Xiao Ran replied with a smile.

"The results will be almost available next Tuesday, why don't you wait for the results to come down before continuing, haha, so confident that you will enter the semifinals?"

"Nine out of ten, idleness is idleness, I think it's better to prepare early."

Xiao Ran was not modest, and directly said what he thought in his heart.

Han Shiqi was stunned when he heard this, and he continued to ask tentatively:

"This time, did our Caozhou City rematch line score more than 140 points?"

"It's pretty much the same, it's been this in previous years."

Xiao Ran said with a smile, he was a little curious about how this uncle was so clear, but he didn't ask too much.

Seeing that Xiao Ran still looked very confident, Han Shiqi couldn't help but feel a little surprised.

This year's questions are a bit difficult, and he knows it, especially the last one.

In fact, as soon as the Olympiad exam ended this morning, many former students asked him how to solve this problem.

Through the student's description, it took Han Shiqi a few minutes to sort out the solution to this problem.

As a former Olympiad coach who has been in the industry for 10 years, Han Shiqi knew that this question was the most difficult preliminary question in the past 10 years.

Even those students who have been specially trained in Olympiad math tutoring have many of them planted their heels this time.

This question is very difficult, and it is not easy for ordinary people to get a 5 out of 15 points.

This means that this exam will be more intense, and if you can still score more than 140 points this time, you can be regarded as a real math master.

Just now, Han Shiqi deliberately reminded Xiao Ran of this, in order to give him a preventive shot.

Although there were only two short contacts, Han Shiqi felt that the student in front of him was really good.

Although he "seems" to be new to the Olympiad, he seems to have a heartfelt enthusiasm and love for the Olympiad.

This is rare, after all, the Olympiad is just a tool for exams in the eyes of many students.

Because of this, Han Shiqi felt even more pity for Xiao Ran.

Because, his luck is really bad, he only participated in the Olympiad competition in the third year of high school, and as soon as he participated, he met the big year of the Olympiad.

With his new strength, I'm afraid there is a chance that he won't be able to get by.

Since you can't advance to the preliminary round, then the next preparation will be meaningless, it's a waste of time and energy, and the result is destined to be the greater the hope, the greater the disappointment.

Han Shiqi was naturally a little unbearable, so he wanted to give Xiao Ran a hint in advance, and tried his best to let him understand as soon as possible, so that he would suffer less damage.

But now the side knock still had no effect, and he was a little helpless, but he quickly came up with another solution.

I saw him take out a notebook from his bag, turn a few pages, and then point to a question excerpted from the notebook and say to Xiao Ran:

"Actually, I have always been very interested in Olympiad mathematics, I like to study Olympiad problems when I have nothing to do, and I happen to have a gold medal Olympiad coach by my side, and I always like to communicate with him."

"But he's been away for the past few days, so no one asks me when I encounter a problem, classmate, I see that you are so good at math, can you please show me this problem."

After listening to these, Xiao Ran understood why this uncle knew so much about Olympiad mathematics, and the recommended books were so good.

It turns out that this uncle is a math enthusiast and has everything involved.

However, from Goldbach's conjecture to the Olympiad problems, it is still quite far away.

But Xiao Ran didn't care, he slowly took Han Shiqi's notebook and looked at the question he pointed to.

Seeing this, Xiao Ran suddenly felt a little happy, isn't it a coincidence, he just finished it before coming.

This question is the big question that Xiao Ran specifically searched for in the afternoon.

However, although Xiao Ran knew that this question was on the "Peiyuan Course", he was not easy to say.

Because, if this uncle just can't even understand the answer before asking him, then how embarrassing it would be to let others read the book directly.

Anyway, he just has to learn how to do it, and he just tells him it once.

Thinking of this, Xiao Ran smiled and asked Han Shiqi to borrow a pen and paper and began to help him analyze.

"Uncle, you see, the stem condition of this question is ......"

"So, let's start by listing ......"

"And then ......"

"In the end, we came to a conclusion."

In order to ensure that Han Shiqi could understand, Xiao Ran explained to him the meaning of this question, the knowledge points involved, and the solution ideas in as much detail as possible.

In addition, he also wrote as he spoke, and wrote out the steps and conclusions of this problem step by step.

In order to ensure that the uncle understood, he also deliberately explained the mathematical formulas and theories in detail, which can be said to be very comprehensive.

However, when he finished speaking, he found that the uncle next to him was completely stunned.

Is it because you don't understand?

Xiao Ran said secretly in his heart.

Also, after all, at such an old age, it is understandable that some knowledge points have been forgotten.

Thinking of this, Xiao Ran said softly:

"Uncle, don't worry, in fact, this question is really very difficult, and the solution idea is more similar to the finale question of the morning exam, I'll give you another review."

"What about this formula......

Han Shiqi was a little stunned.

He didn't expect Xiao Ran to be so familiar with this question, and he could write the answer easily.

The key thing is that Xiao Ran still knows the connection between this question and the finale of the Olympiad in the morning.

How is this possible?

You know, I also happened to find that its solution is somewhat similar to a certain test question after solving this question.

Because the association is so secretive, even those students who have been trained in professional mathematics Olympiads are not aware of it.

And what about Xiao Ran?

He seemed to be a little new man who hadn't read any Olympiad tutoring books last week.

Han Shiqi deliberately took out this question just now, and the original intention was to remind Xiao Ran euphemistically.

In his opinion, it was absolutely impossible for Xiao Ran to do this problem.

At that time, he took the opportunity to find the "Peiyuan Course" and turned it to this question, and then the two of them studied the answer together, and at the same time hinted on the side by himself.

At that time, Xiao Ran should remember that the solution to this problem is a bit similar to the finale question in the morning.

In that case, Xiao Ran should also know how many points he can score in this question in the morning, so he should be mentally prepared.

However, who would have thought!

Before he could make a move, let alone hint, the other party had already finished speaking for him.

This......

The script seems to be a little wrong!

"Uncle, uncle!"

Han Shiqi was silently wandering on the side, and he didn't come back to his senses until he heard a shout.

At this time, he realized that Xiao Ran had finished speaking for the second time, and he was caught because he had not reacted.

Seeing this, Han Shiqi was a little embarrassed, he nodded his head a few times, and exclaimed, "I understand, I understand, so that's the case." ”

But after Han Shiqi finished speaking, he found that Xiao Ran's eyes seemed to be a little different, and there was an inexplicable smile on the corner of his mouth.

[Eh, why is this expression a little familiar? 】

[Wait, does he think that I love face and don't know how to pretend to understand!] 】