After handing over the system, the state forced me to study

"The exam time has begun, candidates are asked to start answering the questions."

The broadcast sounded, and there was a neat movement in every examination room, picking up the pen and starting to answer.

During the waiting time, Lu Xingyao already had a general understanding of the topic. Compared with the provincial math competition, the League of Nations is more difficult and has more pitfalls.

"There are 10 cards, and each card has two different numbers of 1,2,3,4,5, 10, 1,2,3,4,5, 1, [-] written on it, and the numbers on any two cards are not exactly the same. Put these [-] cards into the Among the five boxes of [-], [-], [-], [-], [-], it is stipulated that the cards with i and j can only be placed in the i or j boxes. One way of placing is called 'good', if box [-] If there are more cards in the box than in each other box, then there are __ 'good' placements."

This question alone is only in the position of the fifth question. You must know that there are ten questions in the fill-in-the-blank questions in the first try, and the difficulty of the fifth question is still so difficult, let alone the following questions.

The League of Nations is worthy of its prestige in the finals of the mathematics competition. When the fifth question was solved, Lu Xingyao looked up at the time, "...", 7 minutes passed.

Back then, in the provincial mathematics competition, it took him only two, three, 10 minutes to complete the fill-in-the-blank questions. Looking at it now, hey, stop talking, and go to do the questions.

The fifth question is easier said than done, let's say it is difficult, Lu Xingyao thinks it is okay.

After a little thought, after writing and drawing on the draft paper, Lu Xingyao had an idea.

“用{i，j}表示写有i，j的卡片，易知这10种卡片恰为{i，j}（1≦i＜j≦5）。考虑‘好的’卡片放法。五个盒子一共放有10张卡片，故1号盒至少有3张卡片。能放入1号盒的卡片仅有{1,2}{1，3}{1,4}{1,5}……”

From the analysis of the two situations, there are 64+56=120 good placement methods.

After filling in the answer, Lu Xingyao looked up and saw that 22 minutes had passed.

Not daring to relax, I moved on to the next question.

After the whole exam, Lu Xingyao's only feeling was just one word - tired.

Tired die.

When the test paper was collected, he had barely finished writing the last question, and he didn't have time to check the whole test paper.

In the provincial mathematics competition, it was said to do one question and check one question, now?Don't even think about it, it's good to finish it.

There is an interval of 10 minutes between the first test and the second test, which is still the difference between the test times.

Before the exam officially starts, there are still 10 minutes to distribute papers and fill in personal information.

In general, only a 10-minute break was left for the first and second trials.

As a big water drinker, Lu Xingyao was naturally indispensable among the group of people who solved their personal problems.

Many schools have a bathroom on each floor of their teaching buildings, and Tsinghua University is no exception.

In order to avoid too many people waiting in line for a long time, Lu Xingyao still played to his own advantage. He took a few big strides with his long legs, and walked out of the classroom door before the others.

At that time, the contestant sitting at the first table near the door was still moving out slowly. He thought that he was the first to leave the classroom due to the advantage of the position. Unexpectedly, with a "swish", he passed over him.

"..." The legs are so long.

Now he didn't dare to delay any longer, and quickly followed Lu Xingyao out of the classroom.

If you don't hurry up, there will be a few less toilets.

After releasing the memory, stretch your waist again, and feel comfortable physically and mentally.

In fact, not many people go to the toilet. Most of them don’t care to drink water because they are nervous or rush to do the questions during the exam.

Go back to the classroom and wait for a few more minutes, the second test will start immediately.

It is very common for the invigilator to show that the portfolio is sealed, then open it and hand out the papers.

Lu Xingyao took the question and looked at it, hey, it's a bit similar to the fourth question that Xu Chaoyang had been brooding about before. The key point is that Lao Guan also said that this kid probably laughed from ear to ear when he saw the test paper.

At this time, Xu Chaoyang, who was in another examination room, was just as Lu Xingyao thought, when he saw similar questions, he was completely dumbfounded.

so lucky?

Xu Chaoyang couldn't believe it.

He grinned and opened his mouth wide to familiarize himself with the test questions.

This action, this expression, caught the attention of the invigilator a few times, is this kid stupid in the exam, and he is smiling so happily when the difficulty of the second exam is raised.

The second test questions are still four answer questions, but it is also worthy of the name of the additional test questions, which are much more difficult than the three answer questions in the first test.

Except for the familiar question, Lu Xingyao looked at the other three questions with a wrinkled face.

It's also amazing that the knowledge points that haven't been tested for so many years have actually been tested. Fortunately, Lao Guan has mentioned it, otherwise it will be planted here.

Even that similar question has a few more holes in it.

Fortunately, he carefully looked at it and pondered it carefully, otherwise he would also fall into it.

He just said, there were no similar topics in previous years, why did this kind of topic suddenly appear this year, it turned out to be to dig a hole.

The author of the question really belongs to you.

Now, he should be worried about whether Xu Chaoyang's idiot will find these pitfalls.

Alas, sad people.

"The exam time has begun, please..."

The familiar broadcast sounded, taking away Lu Xingyao's melancholy and bringing him into the atmosphere of doing the questions.

Lu Xingyao couldn't care less about what happened to Xu Chaoyang, he couldn't protect himself now, so he couldn't control others.

Quickly, immediately, immediately, start answering.

On the other hand, the idiot Xu Chaoyang in Lu Xingyao's mouth did not step into the pit as he feared. Under Guan Lianyi's repeated repetitions, every time he looked at a familiar or simple question, his mind was filled with Will think of the voice of Guanyi.

"Look at the topic, look at the topic, look at the topic, how many times you have said it, the teacher who made the question will not give you points, I don't care whether you encounter easy or difficult, familiar or unfamiliar, you will read more Repeat the questions several times, and if I know someone who doesn’t read the questions carefully, who can clearly do the right questions, but just because he didn’t read the questions carefully, he made a mistake, please take it easy for me.”

Thinking about it now, I automatically match Lao Guan's expression and tone in my mind, it's good, goosebumps arose.

Thank you so much, Laoguan.

When he looked at the question carefully again, Xu Zhaoyang realized that he was wrong.

The dog is still your dog, Lao Guan.

As expected of you.

I secretly rejoiced that I followed Guan Lianyi's request, otherwise he would not get the 40 points, and he would be finished.

Time passed by one minute and one second, and the difficulty of the second test questions was so difficult that some contestants had no clue.

Especially the last two.

It’s okay to get up early in the morning, if you can’t eat enough, or you’ll get sleepy, that’s all. You can’t do the exam yet, and you don’t have any thoughts no matter how hard you stare. Then look at the other people in the classroom, writing hard, the gap is nothing to say not big.

After Lu Xingyao finished the third question, he stretched his hands, looked at the time, and was about to enter the state again to continue working, when he heard the frequent sound of flipping the test paper, the sound of hungry stomach, and the sound of sleepy yawning.

Multiplayer belongs to yes.

Went to a concert for free.

Lu Xingyao shook his head, symbolically shaking off these noises, and continued to struggle again.

To be the person who is the problem, to be the soul of the problem, to be the problem is to be a master.

Today he loves to do the questions, and tomorrow he will be the first.

That's it, he designated the League of Nations as the number one.

over!