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

Today, the first IMO exam officially began. Since Ye Jin and several other students were in different exam rooms, they had to go to find their own exam rooms.

Soon, Ye Jin found his own examination room and sat there quietly waiting for the exam to begin.

It is worth mentioning that the official language of IMO is English, which means that the IMO test papers are all written in English. Therefore, if your English level is not good enough, you obviously cannot participate in this international competition.

After receiving the test paper, Ye Jin quickly browsed through the areas covered by the questions, including pure combinatorics, algebra, and comprehensive combinatorial number theory.

After a preliminary assessment, she felt that the difficulty of these questions was acceptable. So, after quickly going through the solution ideas in her mind, she picked up the pen without hesitation and started answering the questions.

At the same time, most candidates are still struggling to figure out how to answer these difficult questions.

Ye Jin became very popular in this IMO, simply because she was young and good-looking. Because of this, the invigilator recognized her as a contestant from Country Z at a glance.

Ye Jin, who was already extremely eye-catching, now became the focus among many candidates.

Seeing her pick up the pen first and start answering questions, the invigilator from Country Y couldn't help but feel suspicious. As a mathematics professor from Oxford University, he was a little surprised that Ye Jin could perform so well, so he walked to Ye Jin with some doubts.

Half an hour later, Ye Jin had finished the first question on the test paper.

At this point, the invigilator's doubts gradually dissipated, and he sighed in his heart: Who spread the rumor that Country Z has no one left and sent a kid to participate in the competition? This kid is obviously amazing and he stood out entirely because of his own strength.

The invigilator strolled over to the other candidates and saw that some of them were only halfway through writing, while others had even just started answering the questions. He then nodded with satisfaction and thought: This is the correct way to open the IMO.

The total exam duration is 4.5 hours, and we are now halfway through.

Ye Jin had already finished the last question - a comprehensive question on combinatorial number theory. Compared with the first two questions, this third question was obviously more difficult and more challenging.

However, this had no effect on Ye Jin, so by the end of the third hour, she had finished all the questions.

However, Ye Jinjin was not in a hurry to hand in the paper, but decided to check it carefully again.

After all, it is better to be safe than sorry. Ye Jin was not unconfident, but he knew very well that this competition was related to national honor and learning points, so he had to be extremely cautious.

With one hour left, Ye Jin carefully checked the test paper and after confirming that there were no mistakes, she decided to hand it in.

If no one paid much attention to Ye Jin when she was the first to start answering the questions at the beginning, then when she became the first person to hand in the paper, she undoubtedly attracted the attention of everyone present.

Everyone had a confused look on their faces, but they also recognized that the first girl who handed in her paper was the contestant from Country Z whom they had been discussing yesterday.

At this moment, doubts arose in their hearts. Could it be that their previous guess was wrong?

However, before they had time to think deeply, the invigilator suddenly shouted loudly: "There is still one hour left until the end of the exam." There is still one hour left until the end of the exam.

Hearing this reminder, the candidates quickly refocused their attention on the exam, while Ye Jin, under the guidance of the staff, came to an office specially provided for candidates who submitted their papers early to rest.

Candidates can only leave after the exam is completely over. At this moment, Ye Jin is the only candidate in the office.

So Ye Jin closed his eyes and took a short nap. The reason was that he had eaten breakfast at around seven in the morning, but it was already past twelve o'clock and the exam would not end until 1:30, so he could only use sleep to numb himself.

After a while, some people began to walk into the office. Although Ye Jin had been woken up, she did not want to open her eyes and kept them closed until Xie Zheli and Li Chengmin came.

As soon as these people stepped into the door, they talked about the difficulty of the test questions: "I think today's questions are okay, not too difficult."

"Yes, compared to previous questions, this one is indeed easier."

Since most of the people present knew very little Chinese, they naturally couldn't understand what they were discussing. Ye Jin also noticed that many candidates kept looking at her, simply because they had criticized her yesterday, but today she was the first one to hand in her paper.

After everyone chatted for a while, the bell for the end of the exam suddenly rang, echoing throughout the examination room. So Ye Jin and Xie Zheli went to the hall together to meet up with other teammates.

As soon as they met, Qi Mingxue smiled and said, "I think today's topic is pretty good! It's quite simple!"

Li Chengmin joked, "Then why didn't I see you hand in your paper early?"

Qi Mingxue scratched his head and said embarrassedly: "After I checked it once, there were only ten minutes left. I felt it was unnecessary, so I didn't hand in the paper."

In fact, there is another reason that she didn't say, which is that since she was a child, teachers always emphasized not to hand in the paper early, so she gradually developed this habit.

Wan Kexin and Cheng Mingming were as silent as ever, and everyone was used to their behavior. So the group went to find the two team leaders.

One of the team leaders, Qin Yuanfeng, saw how excited they were and asked curiously, "The questions were easier this time? Seeing how happy you all are, you must have done well on the test, right?"

Li Chengmin couldn't contain his excitement and replied impatiently: "Yes, I handed in the paper in advance!"

Another team leader, Bian Qihang, turned his gaze to Wan Kexin and Cheng Mingming and asked with concern, "What do Kexin and Mingming think?"

Wan Kexin nodded slightly and said firmly: "It's quite simple. I think it's okay."

Cheng Mingming also nodded in agreement, "It's OK, no problem."

Qin Yuanfeng and Bian Qihang heard that everyone was fine, so they waved their hands to signal them to go back to their rooms to rest. After all, they got up very early in the morning, and after only four and a half hours of exams, everyone must have been exhausted.

Ye Jin returned to the room and immediately saw the message from Sheng Nianhan on her phone, asking her if she needed him to pick her up at the airport in two days.

Ye Jin thought about it and politely declined. Firstly, she was accompanied by Zhou Zhixing and others, and secondly, she felt embarrassed to bother them to make this special trip.

Because IPhO will be held in Country M in two days, Ye Jin will rush to Country M without stopping after finishing the exam tomorrow.