Chapter 701 Seven Bridges
The only thing that Prince Xiang's son can't figure out is how much enmity he has with this poet and poet saint, and how much hatred he has for him to tarnish his reputation.
What the Prince Xiang's son didn't know was that Xu Yi didn't care about the so-called fame of the Poet Immortal and Ci Sage, and trampled on the Prince Xiang's son so hard, just to return the favor of Emperor Da Yue.
Who told this Prince Xiang's son to occupy too much of the limelight before, if he was not completely trampled into the mud, Xu Yi felt sorry for Emperor Da Yue's opening his golden mouth.
However, from the present point of view, Prince Xiang's son has not been trampled hard enough, Xu Yi said again, "Xu also has two doubts that cannot be solved, and I ask the son to enlighten me."
The son of Prince Xiang returned to his senses, and suddenly realized that even if Xu Yi answered all the two questions correctly, he might not have no chance. When it comes to quick wit, none of the wise men in Prince Xiang's mansion surpassed him.
If Xu Yi can solve his problem, surely he cannot solve Xu Yi's problem.
Even if only one piece is unraveled, it will also open up the confusion for the Poet Immortal and Ci Sheng, and the face lost earlier can be picked up together.
But he was still deeply concerned about the rocky water theory, and immediately said, "Right and wrong, you have your own opinion, sir, even if you try your best, you don't even care about your reputation, and you want to win a certain one, and a certain one has nothing to say. Now, just Please ask sir to ask a question, and try to answer it."
Xu Yi said, "Your Majesty, please listen to the questions."
Unexpectedly, as soon as he spoke, blank papers were flying all over the place, and the pens were flickering. Even in front of the throne of Emperor Dayue, there was a new wide table with imperial pens and inks.
Obviously, this unique battle of wits has aroused everyone's interest.
What's more, when Xu Yi was arguing with Prince Xiang's son, several princes bought basins, stones, bowls, and water from Xiaohuangmen to verify Xu Yi's words.
When the stone was submerged in the water, and the waterline clearly dipped past the red line engraved on the bowl, the audience cheered loudly.
What is the internal reason, the bottom has been cut into one piece, but no one can understand the reason.
At this moment, hearing that Xu Yi, the world-renowned poet and ci sage, and the world's number one wise man, is going to write a test for the school, the sensational effect far exceeds that of Prince Xiang's son.
What's more, countless people concluded that this battle of wits will definitely be recorded in the history of Dai Viet, and everyone has a wonderful feeling of participating in history.
But I heard Xu Yi say, "In Xu's hometown, there are two small islands, one is Peach Blossom Island and the other is Knight Island. There are seven wooden bridges connecting the two small islands and the two sides. When Xu was young, he often lived on the island. Playing and communicating with the island. Occasionally, Xu wondered whether he could start from any place between the two islands and the two banks, pass every wooden bridge exactly once, and then return to the original point. Since he was twelve years old, he discovered From the beginning of this interest, for a total of six or seven years, Xu traveled back and forth to the Seven Bridges hundreds of times, but he still couldn’t figure it out. Now I ask the descendants of King Xiang to help Xu solve the problem.”
After finishing speaking, he asked the eunuch for paper and pen, and put down the sketch of the two islands and the seven bridges connecting the two banks in public, and announced it to everyone.
This question just came out, and there was an uproar in the audience. No one expected that at this critical moment, this poet and ci sage would come up with such a question that was almost a joke.
Compared with the stone floating in the water, it is obvious that the mystery can be seen. This question is basically a thread. It only needs to be tried several times, and the result can always be obtained.
Rao is the son of King Xiang who has already raised his mind. Hearing this question suddenly, he couldn't help being overjoyed. He doesn't doubt that Xu Yi's question has a deep meaning, but he can imitate a cat and draw a tiger, and learn how Xu Yi answered the rocky water question. Give results, not giri.
So he only needs to repeat the experiment, and he doesn't need to delve into the hidden truth.
When he was secretly happy, he heard Xu Yi say, "Shicai, answering the son's question took only half a cup of tea before and after. I don't know how long it will take the son to answer Xu's question. As Mr. Chen said, in order to avoid wasting time , it is quick and witty in fighting, if you use it too much, it will violate the original intention of choosing this competition, I don't know what your son thinks."
"So-and-so will use half a stick of incense, no, at most one stick of incense, if one stick of incense is not answered, it will be considered as a loser."
Xu Yi put forward the theory of time, which made King Xiang's son feel more at ease, and believed that Xu Yi was worried about his repeated experiments and obtained results.
He thought to himself, this time he must sweep away his depression and set Xu Yi in a big fall. With his quick wit, what other people have tried once is enough for him to try it ten times.
The effort of sticking an incense stick is enough for him to test it thousands of times, how can a mere few bridges stand up to thousands of tests.
When King Xiang's son finished speaking, the little yellow gate took out the incense burner, put it on the dark side, lit the common timekeeping incense stick in the market, and then it went away.
Long before the little yellow gate lit incense, Prince Xiang sat cross-legged, closed his eyes and heard nothing, and mental calculations unfolded in his mind.
Seeing that a third of the stick of incense had been burned, the expression on Prince Xiang's face was like a thrilling scene, from the initial tranquility to the later hideous appearance, and finally to the last profuse sweating.
Xu Yi stared at Xianxiang quietly, feeling at peace in his heart. He was not worried at all that Prince Xiang's son would solve this problem, but it was an unsolvable problem at all.
This problem is simple to say, but it is unpredictable. It is the famous Seven Bridges problem in the history of mathematics in the previous life.
In the end, it came to Euler, the world-famous mathematician. Even Euler finally proved that there is no solution to this problem after a long deduction, and then derived a branch of mathematics, graph theory and topological geometry.
Even if Prince Xiang's son has the talent of the sky, and his mathematics skills are far superior to Euler, the great wise man in the previous life, it is tantamount to fantasy to give the answer within a stick of incense.
The scenery on the face of King Xiang's son gradually unfolded to the extreme, as if huge waves converged into a storm. Everyone stopped the experiment and looked at the prince of Xiang. Suddenly, a stick of incense was about to burn out. With a mouthful of blood, he fell to the ground.
Chen Guanhai rushed forward in a hurry, raised his hand and put several pills into the mouth of Prince Xiang's son. After a while, the face of Prince Xiang's face as white as gold paper turned bloody. Why is it that such a simple question can't be solved by a certain person, it's just one step away, just one step away..."
Chen Guanhai said, "This question must be ingenious, Mr. Xu can present it in public, there must be a mystery."
At that moment, King Xiang's son stood up with a grunt, clasped his fists at Xu Yi, and said, "Please teach me, Mr. Xu!"
"Teach me what!"
Xu Yi smiled.
King Xiang's Shi Zijun turned cold, "Sir, why do you bother to ask this question knowingly? I admit that I can't solve this question. Please tell me the answer."
Xu Yi laughed and said, "Xu is only in charge of setting the questions, not solving them. Since the prince has solved Xu's two couplets, he should know Xu's routine. After all, Xu's brain is not good enough, so relying on this If you send out the answers to a few questions and keep your name, and you meet someone like Shizi to ask for advice, wouldn't it be embarrassing for you?"