The Xueba system takes me back to when I was six years old

Not only will the examination room be changed for the second exam, but even the invigilator will be replaced by a new face, which means that candidates must find their seats again.

When the exam officially began, everyone's first reaction after picking up the test paper was almost the same: compared to yesterday's difficulty, today's difficulty has increased exponentially!

Obviously, yesterday's exam was just to let everyone relax their vigilance, and the real challenge has just begun.

Today's exam covers areas such as geometry, number theory, and combinatorics.

The most difficult one should be the last question, “Nordic Square”, which not only tests the contestants’ proficiency in knowledge, but also requires strong creativity and ability to understand the questions.

For Ye Jin, the third question was also very difficult. She answered the first two questions quite smoothly, but when it came to the third question, she was stuck for more than half an hour.

Time passed by, like the sand in an hourglass, and there were still two hours left before the end of the exam. Ye Jin repeatedly calculated and overturned in her mind. After repeating this action countless times, she finally caught a clue.

Following this clue, she wrote furiously on the draft paper, filling up the entire paper before she put down her pen.

After carefully checking to ensure that the calculation process was correct, Ye Jin neatly copied the steps onto the test paper. At this time, there was still half an hour before the end of the test, and Ye Jin handed in the answer sheet without hesitation.

This time, Ye Jin handed in his paper early again, but it did not attract the attention of other candidates. Because everyone in the examination room was concentrating on thinking about the last difficult question, and time was running out, so they were reluctant to waste even a second.

Half an hour passed in a flash, and the bell rang to signal the end of the exam. The exam room suddenly became lively, with many people enthusiastically discussing the last question of the day.

Li Chengmin was completely convinced. He grabbed his hair in pain and shouted in despair: "I was wondering why it was so easy yesterday. It turns out that today is so difficult!"

Xie Zheli's face also looked very ugly. He stood aside without saying a word, his silence making people feel depressing.

Ye Jin tried to comfort everyone: "Don't worry, it's not just us who are having difficulties, others must feel the same way. It's okay."

Everyone returned to the room silently. Qin Yuanfeng noticed at a glance that the five people except Ye Jin had unusual expressions. He immediately understood that the difficulty of today's exam must have increased a lot.

Therefore, he did not ask about their situation, but asked Ye Jin directly: "How is it?"

Ye Jin replied: "The last question tests the Nordic square formation, which is indeed quite difficult. I think everyone is stuck on this question."

The others nodded in agreement and asked eagerly: "Jinjin, how did you solve this problem?"

In the end, since Ye Jin had a photographic memory and was able to completely restore the entire problem and solve it, she began to explain the solution to everyone in detail.

In fact, during the half-hour break in the office, Ye Jin also tried to answer the question from other angles, but failed.

Due to time constraints, after finishing the explanation, Ye Jin had to leave Country R and go to Country M.

She said goodbye to her coach: "Team Qin, I have to go first. See you later at the closing ceremony."

Bian Qihang and Qin Yuanfeng smiled and responded: "Goodbye!"

Ye Jin followed Zhou Zhixing and others to board the plane to Country M. In fact, today was also the opening ceremony of IPhO, but because Ye Jin was attending IMO, she unfortunately missed this moment.

At the opening ceremony of IPhO, contestants from various countries also had a heated discussion about the absence of a contestant from Country Z. The organizers were of course aware that a contestant from Country Z had participated in IMO and therefore did not appear at the opening ceremony, but contestants from other countries were not aware of the situation.

The contestant from Country Y asked in confusion: "How could the contestant from Country Z be so arrogant? He doesn't even bother to attend the opening ceremony?"

The player from Country F guessed: "I think they might have deserted the battlefield!"

The R country contestant echoed, “I heard that in the IMO competition over there, Country Z actually sent a kid to participate, and he didn’t even come to the IPhO opening ceremony here. Country Z must have given up struggling!”

However, the contestant from Country E expressed a different opinion: "No way, Country Z won first place in both IMO and IPhO in the past few years, it shouldn't be like this..."

Country M player: "But I heard that the absent player is participating in IMO."

Player from Country H: "How can you believe this? There has never been a player who participated in both IMO and IPhO in history."

As night fell, it was half past six when Ye Jin arrived at Country M. At this time, one of the leaders of the national team was Sheng Nianhan, who held a white board in his hand with the words "Ye Jin" clearly written on it.

Zhou Zhixing had sharp eyes and spotted Sheng Nianhan at a glance. He tightly pulled the backpack on Ye Jin's back and walked straight towards Sheng Nianhan.

Ye Jin waved and shouted, "Captain Sheng!"

Sheng Nianhan looked at the two people standing on each side of Ye Jin, with a puzzled look on his face, and asked, "Who are these people?"

Zhou Zhixing introduced himself: "Hello, I am Ye Jin's uncle, and these three are the bodyguards we hired."

Sisters Li Wenyan and Liu Qingqiu felt very helpless, muttering to themselves, "Rumors! This is pure rumor! They also want to be Ye Jin's relatives. Forced by the captain's force, they dared not speak, but just stood aside and let out a cold breath.

Ye Jin thought it was quite funny, but Zhou Zhixing looked so serious that she was too embarrassed to expose him, so she could only nod obediently.

Sheng Nianhan nodded thoughtfully. He didn't think Zhou Zhixing was lying to him, because Li Wenyan and the other two were very imposing and did not look easy to mess with. As for why there were two girls, it was probably because Ye Jin was a girl.

"Okay, let's go. You didn't attend the opening ceremony this time, and that group of people were so proud that they thought you had deserted. They would never have thought that you were going to attend IMO!" Sheng Nianhan said with a hint of sarcasm.

Ye Jin responded with a smile: "Then let them be proud for a while. They think they have lost a strong enemy, but in fact the opponent is much stronger than they imagined. Hmm...it will definitely be a very exciting scene at that time."

Sheng Nianhan laughed loudly: "Hahahahahahahaha, it's really interesting to think about it. You are still the mean one! How come I didn't realize that you are such a mean person?"

"Because I'm only harming outsiders!"