Chapter 330: While modeling

Chapter 330
The award distribution rules of the National University Student Modeling Contest are:
All regional awards are divided equally between a and b.
All national awards are divided equally between a and b according to half of the quota, and half of the quota is allocated in proportion to the number of questions a and b.
Regardless of whether it is from the regional awards or the national awards allocation mechanism, if you choose the one that is less popular among the two questions a and b, the chance of winning will increase to a certain extent.
Therefore, those teams that think they are inadequate or are on the verge of winning should not only consider whether they are suitable for their team, but also whether the competition for this topic is fierce.
Under normal circumstances, within three days of the competition, it would take almost one morning to select the topic.
After all, the participating teams must have a full and comprehensive understanding of both topics before they can make a cautious choice. Otherwise, when half of the problem is done, I find that it is not suitable for their group. Isn't it because there is no place to cry.
No one glanced at the subject casually, and all the specific modeling ideas appeared in their minds, of course, except for Cheng Nuo!
Others need a morning to choose a topic, but Cheng Nuo doesn't have to be so troublesome.
After only hesitating in his mind, Cheng Nuo chose question b, which is estimated to be chosen by many people-the splicing restoration of shredded paper.
In each modeling question, there are 3 to 4 questions, and this piece of paper splicing restoration modeling is no exception.
Question 1: [For a given shredder from the same page of printed text files to shred paper (only for longitudinal cutting), establish a shredded paper splicing recovery model and algorithm, and focus on the Chinese and English given in Annex 1 and Annex 2. The fragmented data of each page file is spliced ​​and restored. If the recovery process...]
Question 2: [For the situation where the shredder is both longitudinal and cross-cut, please design the shredded paper splicing recovery model and algorithm, and splice the fragment data of the one-page file in Chinese and English given in Annex 3 and Annex 4. recovery……】
Question three: [The fragment data given above are all single-sided printing files. Based on the actual situation, there may also be a problem of splicing and restoring broken paper pieces of double-sided printing files. Attachment 5 shows the fragmented data of a double-sided printed document with English printed text. Please try to design the corresponding recovery model of shredded paper splicing and...]
in conclusion. In fact, the difficulty of the three questions increases in order.
The first question is just to let you recover the shredded paper cut from one side. The second question is to restore the shredded paper that was cut on one side at the same time. And the third question is to discuss the shredded paper that was cut on both sides and at the same time.
What Cheng Nuo wanted was not to build a model step by step in the order of the questions, which would be boring and boring to him.
According to his philosophy, for these three questions, only one model is needed to solve the three problems at the same time.
In other words, as long as the mathematical model built can solve the third problem, the first two problems will be solved naturally.
After having thoughts in his mind, Cheng Nuo turned his head and said to the two women behind him, "I'm going to start working. It's not time for dinner, don't disturb me!"
After speaking, Cheng Nuo turned around, shook the mouse, and opened the software and a word document at the same time!
Modeling, programming, and thesis were supposed to be the work of three people, but now they all rest on Cheng Nuo. This may not be easy for other modeling thighs, but it is much simpler for Cheng Nuo.
Three-in-one, the entire team is the voice of Cheng Nuo alone, and there is no conflict of ideas at all. Besides, no one said that the three tasks cannot be carried out at the same time, right?
Just do it!
Cheng Nuo chose to start with modeling, skip the current two questions, and proceed directly to the third question.
First call the software imread function to read the 24 pictures in Annex 5. Cheng Nuo obtained a matrix with 24 grayscale ak(i,j), (k ∈ [1, 24], i ∈ [1, n], j ∈ [1, m]).
Next, Cheng Nuo took out a stack of draft paper and copied the gray matrix formula.
The next step is to use the binary method to transform the gray matrix. Through calculation, the binary image w(x, y) formula can be obtained:
w(x,y)=1, th≤g(x)
w(x,y)=0, th>g(x)
...
Cheng Nuo maintained his high efficiency as always.
The formulas came in handy as if they had been stored in the mind.
In fact, modeling is not that complicated. As long as you have the right ideas in your mind, plus a smart enough brain, it will not take much time to successfully build a mathematical model.
Here, Cheng Nuo is lying on the computer desk and calculating carefully, while over there, sisters Liu Qing and Gu Feifei can really be described as boring...
Originally, the two wanted to get together to help Cheng Nuo, but when they saw the large series of formulas on the paper that looked like ghost symbols, they stuck out their tongues and swallowed them with self-knowledge.
"Feifei, do you think the great can do it alone?" Liu Qing swept the other teams in the computer room and found that all three people were discussing it together. On their side, Cheng Nuo was lying on the table alone, while the two of them were paddling here.
No, they are not even a paddling. Someone else's paddling was a symbolic performance, and the two of them really started to be a crowd.
Gu Feifei replied, "It should be possible. Seeing that the great is so confident, he should be confident. Besides, in the end, even if we lose the prize, we have nothing to lose."
"Well, that's right. Then let's continue eating snacks."
"Yeah, I also brought a few bottles of Kidney Treasures to the Great God, and I will bring them to him when I eat later."
After speaking, the two women who had nothing to do again ate their snacks.
…………
"Huh, in that case, let's choose question b!"
"I have no opinion."
"No comment."
It was ten o'clock in the morning. A team in the computer room finally settled on the topic after two hours of discussion.
As a member of this team, Qiu Qi looked around the computer room for a week, trying to observe the progress of other teams.
Suddenly, when Qiu Qi's sight fell on a corner of the machine room, his sight no longer moved.
"Chiu Qi, Qiu Qi, what's wrong with you, why are you stunned, let's quickly discuss this topic again!" One of his team members next to him called him.
Qiu Qi looked unmoved, raised his finger and pointed in one direction, "Look over there."
The man followed Qiu Qi's sight~EbookFREE.me~Huh, wasn't that the team of one man and two women just now? "
"Yes, then look at what the two girls in that team are doing?" Qiu Qi said.
The man fixed his eyes and saw Cheng Nuo sitting at the computer desk in his field of vision, lowering his head to write and paint. This was no surprise.
The point is that the two girls are sitting side by side holding a bag of spicy strips.
On the stool in front of them, there was an ipad erected by a stand.
The two women stared at the ipad attentively with relish.
With his 1.5 vision, if he reads it correctly, what is playing on the ipad is the popular TV series-Fuyao!
What are you doing? ! Are we not modeling competitions? !
Qiu Qi and his teammate looked at each other, both with a dazed expression!
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