Paper a of the New College Entrance Examination: a Bad Student Teaches Mathematics in a Copy

[Knowledge Cyber + Preaching System + Single Female Protagonist + Literary Copy + Secret Room Rules] Multidimensional worlds are folded in dreams. When you wake up, entertainment is supreme and knowledge becomes a strategic resource that can be sold. The monastery hiding the Phoenix in "Conic Sections", the densely packed babies in the surrogate apartment in "Sequence"... There are weird and terrifying killing monsters scattered everywhere, a constant countdown, and room rules that can't be found. Players are forced to solve puzzles and pass levels to find the truth and purify the world. The so-called truth in the new era is the theorems and formulas that Zhou Yi, a poor student, memorized with his super memory when he was fishing in class. Good news: You can get through the book and end your high school prison life early. Bad news: High school math is required. Good news: When you wake up, in 2050, everyone's math skills will have dropped ten thousand times. Only your level will remain the same. The world's top mathematicians can only barely calculate three-digit multiplication. And you are a mathematical genius who masters "odd to even, unchanged" and "leading and not leading" Bad news: You are a bad student who only scored 30 points on the math mock test. "System prompt: Please complete the announcement of the combination number definition as soon as possible" It seems to be C in the morning and A in the evening? This... I forgot... 2050, In this era where language is sold and knowledge is banned. Evangelists from all over the world unite to complete this crazy spread of knowledge.