NABC Chapter 87 Midterm Exam
Chapter 87 Midterm Exam
There are only five minutes left before the exam begins.
The examination room was filled with an oppressive atmosphere, as if an execution was imminent.
"Let me reiterate the rules! Any electronic device found will result in a zero score."
Please turn off your devices immediately and put them in your bags.
The proctor's cold voice echoed in the classroom.
The students below, like prisoners about to be executed, sat in their chairs and began their final struggle:
Twisting his neck and loosening his wrists were simple ways to move his stiff body.
After a few piercing screeching chairs followed by a few dry coughs, the examination room fell into a deathly silence, as if all the air had been sucked out.
The exam papers began to be distributed along the aisle, and the hands of the clock on the wall slowly crossed the number 12.
The proctor's cold instructions were given precisely on time:
"Start answering questions."
Swish-!
All the exam papers were flipped open in unison, and the uniform rustling of the papers, amidst the silence, carried an air of chilling antiquity, like the clash of swords and the clash of armor.
In this somber atmosphere, Su Hao held his pen, as steady as an old dog.
He was confident that he had absolute dominance in mathematics and science subjects, and could crush them even with his eyes closed.
But the other subjects seemed like an invisible gloom, faintly shrouding his heart.
Because he skipped the knowledge accumulation of junior high school, subjects like Chinese and humanities, which require years of experience, were not so easy for him.
Moreover, he was very aware of where he was.
In this "gifted youth class" that gathers geniuses from all over the country, even the humanities subjects are designed with outrageously tricky questions that cannot be passed by rote memorization alone.
After careful consideration, Su Hao arrived at a tactical philosophy that is simple yet profound:
Since there's no shortcut, why not just memorize it all! And then thoroughly understand it all?
To implement this "simple and unpretentious" tactic, he decided to unleash his trump card: mind mapping.
While others read books by looking at the words, Su Hao scans them.
He memorized the textbook's contents, along with its layout, punctuation, and even paper imperfections, word for word, as if he had burned a CD into his mind.
With his almost pathologically high level of concentration during class, the core of the knowledge had already taken root in his mind.
Based on this, he transformed the vast amount of reference materials and class notes into countless slender vines, which extended and entwined wildly on the main trunk until the branches and leaves became lush.
This method sounds appealing, but there's only one reason why mind mapping has never become widely adopted:
Drawing this thing takes a lot of time and energy; you might even get depressed while you're drawing.
But Su Hao doesn't need it.
He doesn't need to pick up a pen to draw at all.
He only needs to close his eyes quietly and gently guide his thoughts in his mind, and a complete and magnificent network diagram will automatically unfold and illuminate.
This near-miraculous feat was not solely due to Su Hao's extraordinary intelligence, which surpassed that of ordinary people.
It also benefited from his childhood experience of reading thick encyclopedias from a young age and building knowledge graphs in a subtle way.
This skill, honed since childhood, has led to his astonishing, almost supernatural performance.
The first subject was Chinese.
The moment Su Hao opened the exam paper, he didn't make any unnecessary movements. His gaze immediately fell on the reading comprehension text, and he instantly entered a state of complete absorption in the text.
The text is lengthy, contains extremely obscure vocabulary, and is full of intricate and trap-filled sentence structures.
Many of the students around had already begun to frown in pain, and some were even biting their pens in frustration.
Su Hao's gaze remained calm and serene, exuding an air of aloofness and superiority.
At this very moment, deep within his mind, a vast network of knowledge, as immense as a world tree, was quietly unfurling its branches.
Start by reading that pretentious "philosophical remark" at the very beginning of the text...
The main branch in his mind instantly split into countless derivative branches that were intricately connected to it, multiplying exponentially downwards.
Su Hao's consciousness transformed into a streak of light, traversing the branches at faster-than-light speed, beginning to precisely search for the data fragments he needed in this sea of knowledge.
This is what Su Hao calls the "most efficient learning method," a concrete manifestation of its thought structure!
Question 2.
Without even pausing, he drew his pen and immediately circled the answer.
The moment I finished reading the question, my brain's database clicked and locked onto the specific location of the information.
Question 3 examines the narrator's inner conflict.
The navigation window in Su Hao's mind popped up instantly:
[Directly related to the second branch on the right—ontology! 100% match!]
The pen tip glided smoothly across the rough paper, making a soft, rustling sound.
He doesn't need to repeatedly read the text like others do, because he has forgotten or doesn't understand it.
Once information is embedded in his structure, it is as if it were welded in, making it extremely difficult to forget.
While the other candidates in the examination room were still sweating profusely, scanning their work and repeatedly checking their words...
For Su Hao, this content was already "archived data" that had been settled long ago.
Even the literary reading section, which is the exam setter loves to play with, filled with all sorts of obscure metaphors and symbols, and extremely demanding of so-called "emotional understanding" and "micro-management of language"...
Faced with Su Hao, this emotionless logic-crushing machine, they could only helplessly shed all pretenses.
The thickest trunk represents the profound historical context;
The slender branches that extend out represent the emotions and symbolic imagery of the characters struggling in the mire of fate.
No matter how deeply or subtly the question setter uses metaphors to wrap the sentences, Su Hao's mind map will always peel back like an onion...
It is ruthlessly dissected into cold, structured language, and then peeled back the layers and deciphered by category.
......
The second subject was mathematics.
The moment the curls were applied, the temperature in the entire examination room seemed to plummet to freezing.
coming!
This is the infamous math exam that strikes fear into the hearts of gifted children and is used to ruthlessly erode the dignity of top students!
In the air, one could hear a series of painful gasps of cold air coming from all around.
An atmosphere of despair spread rapidly among the top students.
Of course, Su Hao was not among those suffering in this desolate place.
Undeniably, when he first entered the school, he was unaccustomed to the teacher's requirement to clearly write out all the steps in solving the problem.
But Su Hao is now a god who has completed his evolution.
During this period, he anonymously answered countless tricky questions on the campus forum under the pseudonym "Duck God".
In the process, he had completely seen through the true nature of the teachers who set the questions.
He knew all too well what kind of problem-solving steps these teachers wanted to see.
Question 1.
[Given any 2n+1 integers, prove that there exists a non-empty subset whose sum is divisible by n.]
Su Hao glanced at it, and the corner of his mouth twitched slightly.
Goodness, the first question is a math Olympiad level problem?