Hogwarts on the Tip of the Tongue

In any school, examinations and learning are always reserved items that have never changed.

Hogwarts is naturally no exception, no matter how much changes have occurred in the castle this semester, this is ultimately a place for imparting knowledge, and when the end of the semester is near, the end of the exam will not change.

According to Pythagoras's theory that everything is number, everything has a wonderful relationship with numbers, so before studying the world, it is undoubtedly a clearer and simpler path to analyze mathematics.

Although at this point, there are still many controversies in the current academic world, but it is undeniable that using mathematical thinking to sort out and find the connection between things is indeed an extremely efficient and smart way-for example, Explore the relationship between learning textbooks, time laws and final exam questions.

Elena picked up the pile of messy and worn parchment papers on the table, carefully spread them out on the floor of the room in chronological order, according to different subject categories, lined up in a long line of papers.

These papers are all from the hallway next to the "Piano Room", located in the room of quests opposite the tapestry of "Monster Sticks Playing Silly Barnabas". This is a secret magic room in Hogwarts Castle. A fixed form, but change according to the needs of the help-seeker-whether it is a toilet, a utility room, a training room, a **** room, a study room, a restaurant, an weapons room ...

But for Elena, what she needs is not a special-purpose room, but looking for the final exam papers of Hogwarts students who have deliberately or unintentionally hid in the response room over the years.

Hiding and destroying the final exam papers is a very common practice in any school.

After all, with the exception of a handful of top students, not every little wizard is willing to put his final exam papers in the luggage box at the end of the semester and take them home to share with parents and siblings.

Using the two constraints of "a place to hide things / a place to hide test papers" for review and screening, Elena accurately found all the papers she wanted from the same room as the garbage dump, which was used to verify her conjecture. .

"Sure enough, I knew that ..."

Elena looked at the real questions on the ground and said softly.

According to the definition in the preamble, there must be finite solutions for parallel maps of finite sets, and order-preserving maps on compatible complete lattices have sign-preserving properties, which means that the questions of seemingly infinite sets are on the knowledge points of the textbooks of finite sets. , It will definitely grow with the time axis, and the phenomenon of convergence will occur, that is, the phenomenon of repeated solutions.

Of course, the above part is how ordinary Muggles know and understand the world.

From the perspective of a wizard who does not learn (no) counting (learning), that is, where the professor draws the key points, it is the scope of the final exam, although ... this key range is usually about equal to the hands of the little wizards That textbook.

Long before crossing, Elena had a lot of research and speculation about Hogwarts' education system.

A large part of this is that the speed at which the teaching materials in the magic world are changed in basic education is really unbelievably dull. The most obvious example is in the original book Harry Potter and the Half-Blood Prince, 1997 The textbooks used by Harry Potter in the potions class were exactly the same as those used by Snape in the potions class in 1976.

Not only the title of the book, but even some basic mistakes and cumbersome methods. There have been no revisions or re-compilations in the past thirty years, which is simply unimaginable in the non-magical world at the same time. Things.

In addition to this, both the "Standard Mantra" series and the "Basic Transfiguration Guide" are the works left by the wizards hundreds of years ago. Over the years, there has been no change at all, compared to Elena. " The "History of Magic" compiled by "Grandma Zu" is actually a rare textbook with relatively frequent revisions.

For the time being, we will not discuss the problems that may result in the quality of education for a long time using the same set of teaching materials. For professors at Hogwarts, it is also a headache to issue questions at the end of each semester.

You know, unlike those schools in the non-magic world, Hogwarts has a very serious shortage of human resources in education resources. Each professor must face at least 5-7 grade wizards, which means that whenever At the end of the semester, they must at least take out the corresponding number of test questions.

"It's not easy, in the case of the Hogwarts college dormitory system, you have to find ways to prevent cheating."

Elena looked from the end of last year's final questions in turn, and found that the content of each year's test papers was different from the previous year. Obviously, the Hogwarts professors were not lazy enough to use only one set of test papers to cope with the exam.

On this point, it did not meet Elena's expectations.

After all, in Hogwarts, students of all grades are mixed in the same dormitory according to their respective colleges. If the same set of test questions are used every year, it is easy for the upper grades to miss the questions for the lower grades at the end of the period. Case.

"Hogwarts has seven grades in total. If you want to ensure the confidentiality of the lowest level of test questions, it means that there will not be repeated end-of-term test papers between the students of the school, which means ..."

Elena whispered thoughtfully, crouched on the ground, carefully checked and discharged the discarded test papers from the "garbage dump" according to the year. It is well known that the simplest of mathematical induction is poor Cite method.

"1990, 1989, 1988 ... 1985, 1984, 1983 ... this is it!"

Looking at the seemingly similar parchment paper in front of her, Elena quickly stood up and looked at the paper that was placed in the forefront just last year into the "garbage dump", separating the two papers for 8 years. The test papers were put together.

From the first question to the last question, all the contents are exactly the same. If the time is covered, it will even make people think that this is the test paper for the same student, but whether it is old or new paper, or written on the top of the paper The names of the students have unequivocally verified Elena's conjecture again.

Most of Hogwarts ’test papers use a seven-year recurring question bank. In other words, the test paper system used by students who graduated last year is exactly the test paper used by the little wizards who just entered the school this year. .

In this way, Hogwarts' seven academic years just formed a cycle like ouroboros.

In addition to the special black magic defense class, the rest of the professors in charge of the major courses do not have to devote themselves to the new test questions every year, and they do n’t have to worry too much about the real test questions being leaked in advance.

I took a piece of French caramel pudding in my mouth and felt the crispy caramel melt away at the tip of the tongue. The delicate and smooth pudding with a little milky fragrance but not too sweet touched the teeth coldly, Ai Linna narrowed her eyes happily.

"Huh, but I didn't expect that I accidentally turned to the black history of two" acquaintances "..."

…………

The House of Requests is located on the corner corridor of the eighth floor of Hogwarts Castle.

Close to the principal's office, Gryffindor common room and Ravenclaw common room, if nothing unexpected, it should be the handwriting of one of the founders, Roina Ravenclaw, after all, Gryffindor Not like such a careful person.

Perhaps it ’s because of the unique location of the “have a house”, most of the students who use this place are the little wizards of Gryffindor College and Ravenclaw College, which is more in line with the students of the two colleges. character.

The reckless Gryffindor lion cubs always have some dangerous items that they attempt to destroy and discard.

The sensitive Ravenclaw girls will also have many secrets that they want to secretly hide from being discovered.

The two papers in Elena ’s hand happened to be a Ravenclaw college, a Gryffindor college, and more interestingly, the masters of the two final grades of the potion class happened to be her. All 'know'.

"Bill Weasley, Qiu Zhang ... I didn't expect these two good students to fail the exam. Um, more interestingly, this time Ravenclaw's time-to-time confrontation with Gryffindor, Did n’t expect Gryffindor to win? ”

For Qiu Zhang, the first girlfriend of Harry Potter in the original book, and the second-year Ravenclaw sister of Chinese descent, Elena is naturally not strange, although from a personal emotion, she has not liked it very much. This Chinese school sister.

It's not that Elena deliberately aimed at Qiu Zhang, mainly because she learned that Qiu Zhang not only can't speak Chinese, but also lived in the British magic world since childhood, and the three views and personal habits are also free. British wizards, after not having too many Chinese elements except for their pedigrees, alienation caused by the psychological gap of expectation.

But when studying in the same school, there is still some memorable interaction between the two.

For example ...

In those Quidditch matches against the Ravenkalau Academy in this school year ~ www.wuxiaspot.com ~ The silver and white demons soaring in the sky almost cry the girls of the entire Ravenclaw team with little effort So that every time Elena passed by the Ravenclaw table in the next few weeks, the eyes of several senior girls turned red instantly.

Among them, Qiu Zhang, who is also looking for the position of the golfer, can be said to be one of the few crying wizards.

In addition to her little wings, Elena has always been cold and ruthless to the cabbage outside, like the autumn wind sweeping the leaves. Moreover, in the face of this Chinese sister who is wearing a Chinese identity but has no familiarity everywhere, she is really difficult There is too much intimacy.

However, for Bill Weasley, Elena is a different attitude.

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Chapter One! ! Mom! !

List of Hogwarts chapters on the tip of the high-speed writing hand