"Yes, they are all correct. I didn't expect that the old gentleman also had this hobby and counted all the questions." Han Jingyun said with a smile and returned the book to Mr. Jin.
Mr. Jin suddenly laughed and said: "I have only had such a hobby in my life, how can I not try my best? It is precisely because I have no problem to solve that I find it boring, so I retired to the mountains and forests." He glanced at Lao Zhu and said, It can be regarded as an explanation for his refusal to enter the court as an official.
When Lao Zhu heard the reason why Mr. Jin would rather retire to the mountains and forests than serve as an official in the court, the last grudge in his heart quietly disappeared. Nodding slightly and smiling at Mr. Jin, he revealed this section.
Han Jingyun was not in a polite mood. Since Mr. Jin passed the first level, the second level would naturally follow.
"The old gentleman must have read the question I left outside the door. I wonder if the old gentleman can solve it?"
Mr. Jin shook his head and said, "I can't figure it out."
Han Jingyun's face was calm and there was no hint of happiness or anger, but Lao Zhu suddenly felt happy. Since Mr. Jin said he couldn't solve it, doesn't it mean that he thinks he is inferior to Han Jingyun? Thinking of conferring Han Jingyun a bachelor's degree, Lao Zhu felt from the bottom of his heart that he was so wise.
I remember that Mr. Jin walked away without even looking at the generous salary he gave to high-ranking officials, which made Lao Zhu who was in the high-spirited stage feel a huge loss of face. Nowadays, a great mathematician who is more powerful than Mr. Jin has become a great scholar of the imperial court. Doesn't it mean that he, Lao Zhu, is the heart of the world and the well-deserved co-leader of the world?
"Although I don't know how to solve this question, I know its answer." Mr. Jin smiled, looked at Han Jingyun and said seriously: "Didn't you already tell me all the answers? This question is actually the same as what you once said. The problems I have solved about moving the gold cake are the same, and even the answers are the same. I wonder if I am right?"
"Hahaha," Han Jingyun laughed out loud for the first time since meeting Mr. Jin. She was truly happy that she finally had someone who could impress her.
"The old gentleman is right, the answers to these two questions are the same." Han Jingyun said.
Han Jingyun's words made Lao Zhu pale. He did not expect such a result. In this case, doesn't it mean that Mr. Jin solved Han Jingyun's problem?
I saw Han Jingyun shaking his head and sighing: "It's obviously the same question, and even the solution is the same. I just changed the description, and I was able to stop them for so long. I can't even judge others from oneself, draw inferences from one instance, it's really disappoint others."
After finishing speaking, Han Jingyun said politely: "Since the old gentleman has solved my problem, please ask the old gentleman to give the question now." After saying that, Han Jingyun made a gesture of invitation.
Although Han Du had confidence in the girl, at this moment he couldn't help but wonder what kind of questions Mr. Jin could give to embarrass Han Jingyun.
Lao Zhu looked back and forth between the two of them even more nervously. He was afraid that Han Jingyun would lose and didn't want Mr. Jin to win.
Mr. Jin stroked his beard, and after a while he suddenly smiled and said: "I am good at solving problems, but I have never come up with any difficult problems by myself. How about this, if you ask another question, if I can't solve it, I will lose." how?"
This is so easy to do.
When Lao Zhu heard this, he couldn't help but feel happy. As long as Han Jingyun took out any question on the Mathematics Hundred Questions Monument, he would definitely win. Lao Zhu didn't believe that this old man could even solve the difficult problems on the Hundred Questions Monument of Mathematics. If that was true, there would be nothing to say.
"Of course, the ones on the Hundred Questions Tablet of Mathematics outside don't count." Mr. Jin stretched out his hand and pointed in the direction of the academy gate, "I admire you very much if you can solve one question, but I don't believe you can also solve the others."
Han Jingyun smiled and pondered for a moment, then said: "Okay, let me ask a question. There are twenty trees, and every four trees are arranged in a row. How many rows can be placed at most? For the sake of fairness, how about we win with the greater number? ?”
"This is an interesting question," Mr. Jin smiled slightly and nodded in agreement, "Okay, I'll do as you say."
Han Jingyun also smiled and extended his hand to signal, and said: "Old sir, you have come from afar to be a guest. Sir, please go first!"
Whoever comes first will have a certain advantage. After all, if two people arrange the same number of rows
If so, the one ranked first will naturally win. If Han Jingyun wants to win, he must have more rows than Mr. Jin.
Lao Zhu couldn't help but be stunned when he heard such a simple question. He glanced at Han Jingyun, wanting to see if she was trying to lose to Mr. Jin. But after Lao Zhu sorted it out in his mind, he suddenly felt that this question was not that simple.
Lao Zhu originally arranged four trees in a row, and arranged five rows in a row, so that eleven rows could be arranged. But this will definitely not be the answer with the most answers, because Lao Zhu obviously feels that this arrangement wastes a lot of trees.
Thinking of what he was fascinated by, Lao Zhu simply left his seat, picked up a dead branch, broke it into twenty small sections, and arranged them one by one on the stone table. Soon, Lao Zhu increased the number of arranged rows to twelve, and then to thirteen. However, it became extremely difficult to increase the number, and after thinking hard for a long time, he found nothing.
Mr. Jin didn't pay much attention to Han Jingyun's question at first, and just stroked his beard and calculated it silently in his mind. But soon he couldn't help but feel moved, and he didn't care about stroking his beard at all. Following Lao Zhu's example, he also broke off dead branches and placed them on the table.
Reading with rice balls
Soon he also arranged it to the thirteenth row like Lao Zhu. At first glance, it seemed that this arrangement had reached its end, because every tree was used. But Mr. Jin still refused to be satisfied. After thinking hard for a long time, he waved his hand and messed up all the dead branches.
"This~" Lao Zhu looked on with great pity. In his opinion, this was already the most arrogant way.
At this time, Lao Zhu didn't even think about whether Han Jingyun could win. This is the charm of mathematics. Once you really delve into it and immerse yourself in the wonderful world of mathematics, fame and fortune will really be a passing cloud.
Soon, Mr. Jin moved quickly. By the time his hand left, twenty sections of dead branches had been rearranged on the table. As he took his hand away, three five-pointed stars were nested inside each other on the table, and an indescribable sense of beauty struck everyone.
"Beautiful, beautiful, so beautiful." Lao Zhu couldn't help but clapped his hands and exclaimed in admiration. There has never been a moment when Lao Zhu felt the beauty of mathematics, which is so thrilling and fascinating.
