Rebirth: National Crown Prince

Seeing that no one answered him, Fang Shisong then said: "In that case, I will choose someone."

"Teacher!" As soon as he finished speaking, a boy's voice rang out.

"Classmate Li Jun! Have you figured it out?"

"Yes! Teacher! It took me one night to solve this problem." Li Jun's confident look made everyone present couldn't help but look sideways.

"In this case, please invite Li Jun to come on stage to solve this problem for everyone to see."

"Okay! Teacher!"

Looking at Li Jun walking over, Leng Yuan was a little impressed, "It's amazing. I've been trying to solve it for two days and I still can't solve it."

"Reverse thinking." The mellow and magnetic voice said.

"What?" Leng Yuan looked at the boy next to him in surprise.

I saw the lazily-eyed young man's hand supporting his fair chin, and a leisurely smile filling his fair and handsome face.

"This question can be solved after thinking about reverse thinking. However, generally people still believe blindly in their own thinking, so this question makes these people find it difficult to solve." The young man said in a low and unhurried voice. said.

At this time, the student named Li Jun had already started solving problems on the blackboard.

Fang Shisong on the side looked at the solution written by Li Jun and nodded with satisfaction.

"Bravo!"

"Li Jun is awesome!"

"I have been trying to solve this problem but can't solve it. I also thought about solving it by reverse thinking, but it seems impossible. Wouldn't it be more troublesome?"

"Teacher! I've finished solving it."

"Go down and go back to your seat."

Li Jun put down the chalk with confidence and sat back in his original position.

"That's right! Why didn't I think of that?" Leng Yuan exclaimed as she looked at the problem-solving process carefully and suddenly realized something.

In fact, not only her, but also the students present quickly understood the whole process after watching the problem-solving process.

"Let me tell you, there must be something wrong with me. That's what it is like."

"Me too. I felt confident when I first started solving it. Who knew that the more I solved it, the more I felt it was wrong."

"Hahaha! Li Jun is awesome!"

"Brother, I figured it out in one night and it's really you."

Li Jun couldn't help but look proud, "That's not true. Let me tell you, I just solved this question with a little reverse thinking. It's not difficult at all."

"alright!"

After Fang Shisong confirmed that there was no mistake, he quickly spoke to stop the classroom that started to make noise.

Those people suddenly became quiet.

But Wan Zexi glanced at the question with some boredom. This question was really not as difficult as the question she asked when Principal Wang was in Yunnan.

"Don't feel happy yet. Although this problem was solved by classmate Li Jun, Professor Hua Bo of Yunlan once had such a difficult problem. Whoever can solve it has to admit that this person is very good."

"What's the question?"

"What question? Professor Fang tells us how difficult it is."

"Don't worry, you will know when I write it down." Fang Shisong picked up the chalk again and wrote it on the blackboard.

Wan Zexi's originally somewhat unfocused eyes shrank when she saw the question Fang Shisong was gradually writing. She had seen this question accidentally when she was a child.

When she was a child, her mother wrote this question in front of her, and then gave it to her father to solve.

At that time, my father just pondered for ten minutes and solved the problem.

As for how her father solved the problem, she didn't care at that time, so she didn't know what her father's process of solving the problem was like.