The International Mathematical Olympiad, or IMO for short, is a mathematical competition organized by the Hungarian mathematical community in honor of the mathematician Otvos Roland in 1894.

The purpose of IMO is to stimulate young people's mathematical talents, arouse young people's interest in mathematics, discover the reserve army of scientific and technological talents, and promote the exchange and development of mathematics education in various countries.

IMO is held once a year, scheduled for July, and the contestants are middle school students, each team has 6 students, and 2 mathematicians are sent as team leaders.

The scope of the examination will not exceed the accepted content of secondary school mathematics.

Students participating in the IMO competition need to participate in the national league in mid-October every year, and if the results are in the top few in the province, they can enter the provincial team and participate in the "winter camp" held in January and February (essentially a national mathematics competition, the purpose of which is to select talents for the national team);

The gold, silver and bronze medals (the gold medal can be won by multiple people at the same time, equivalent to the first prize), the gold medalists all enter the national training team, participate in the training in March and April, taught by the best competition teachers in the country, and continue to participate in the test, and finally according to the comprehensive selection of national team members according to multiple tests, they will represent China to participate in the International Mathematical Olympiad.

Olympiad is a strange and familiar word for Lingshui County, although it is aimed at middle school students, but it seems to have nothing to do with Lingshui County, the reason is that Lingshui County has never had a student to enter the provincial team, for a long time, it feels that it has nothing to do with itself, and at the same time, no school attaches importance to this aspect of the results.

Xiao Ran decided to lead his class to participate in next year's Math Olympiad, so he had to start preparing now.

Time passed quickly, and the exams of the two classes were over, Xiao Ran took the test papers of the two classes and brought them back to the apartment for correction.

Why don't you correct it in the office? Of course, Xiao Ran doesn't want others to know the results of this test.

Back in his room in the apartment, Xiao Ran locked the door tightly, and then couldn't wait to start grading the test papers.

As the test papers were corrected one by one, the smile on Xiao Ran's face became bigger and bigger, and he was so excited that he wanted to shout.

So far, Xiao Ran has corrected 23 test papers, none of which are less than 100 points, and there are more than a dozen of them with 120~140, which can't help but make Xiao Ran not excited. Previously, these students' scores were generally around 50 points, and even worse ones were only a dozen points.

With such a rate of progress, as long as you continue at this rate, there are still two years to go, and you can completely cultivate a top student class.

In addition, Xiao Ran believes that after his own training, the students will definitely be able to get excellent results in the IMO competition in the coming year, and when the time comes, they will definitely regret those who gossip and those who look down on themselves.

Of course, what excites Xiao Ran the most is that he will get a lot of grade points at that time.

After lunch at noon, Xiao Ran continued to come back to mark the test papers until 15 o'clock in the afternoon, and finally completed all the test papers of the two classes.

After Xiao Ran went through the statistics, looking at the results after the statistics, Xiao Ran couldn't help laughing.

All students in class 10 have a score of 100 or above, and there are no students with a score of 100 or less, the highest score is 148 points, the lowest score is 101 points, and the average score is 131 points, 12 students have a score of 140 or more, 18 students have a score of 130~139, 10 students have a score of 120~129, 10 students have a score of 110~119, and there are 4 students with a score of 100~109.

When Xiao Ran took over the head teacher of class 10, the average score of the students in class 10 was only 61 points, and now it has soared directly to 131 points, an increase of 70 points!!

And class 5, because Xiao Ran did not turn on the talent training function in class 5, and the head teacher of class 5 was not Xiao Ran, Xiao Ran did not teach gymnastics to class 5 classmates, not that Xiao Ran did not teach, but that Xiao Ran was not the class teacher of class 5, in fact, he had no right to care about things other than teaching.

Therefore, the results of class 5 are much worse than class 10. The highest score in class 5 is 141 points, the lowest score is 38 points, the average score is 90.25 points, 2 people with more than 140 points, 12 people with 100~139 points, 8 people with 90~99 points, a total of 22 people passed, less than half.

This is also in Xiao Ran's expectation, judging from the results of the exam, there are still many people in class 5 who have not listened to Xiao Ran's course, so they have not received the bonus of Xiao Ran's concentration and ethereal buff.

But despite this, the average score of class 5 has also increased by more than 30 points, such a result, it is amazing enough, I believe that it will not take long to surpass the key class, and now the average score of mathematics in the key class is 101 and 102, the highest score is 130+, and there are no 140+ students.

The mathematics of class 10 has comprehensively surpassed the key class, and it can be said that the key class can't catch up, so I guess I can't think about it.

"I don't know what the teachers of other classes would have been if they knew the test results this time, what their expressions would be?" haha......" Xiao Ran thought silently.

On the morning of August 9, Xiao Ran walked into the classroom of class 10 with a set of papers, and the students sitting in the classroom were suddenly not calm.

They have been waiting for this day for a long time, this step paper is the result of their hard work for more than half a month, although they usually do practice questions, they have clearly felt their great progress, but there is still no test result to be more reassuring and exciting.

Looking at the excited classmates below, Xiao Ran was also infected, and the smile on his face was not slowly amplified, and in the end, he laughed even more, Xiao Ran held the lectern, and after laughing for a while, he stopped.

"Teacher Xiao, what's wrong, can't it be that you have that kind of illness?" Yang Chengyou said to Zhou Jie, who was at the same table with a confused face.

"Maybe, very likely!" replied Zhou Jie abruptly.

Xiao Ran calmed down, he looked at the classmates below looking at him with a confused expression, Xiao Ran knew that he was a little out of shape, but so what?

"Students, the test paper on the podium is your test paper yesterday, and it is the result of your study in the past half a month. Xiao Ran tried to calm his tone as much as possible.

"Don't talk nonsense, I won't introduce what the results are, I will send the test papers directly, and the students who read the names should come to the stage to get their own test papers. Xiao Ran said to everyone.