"This problem?"
Lu Qingyi raised an eyebrow, gazing at the math problem on the board with a casual air about her, showing no signs of being nervous.
She held Luo Jia's black pen, a faint smile curling her lips.
"Qingyi, we took almost four days to solve that problem," Luo Jia remarked, tugging at Lu Qingyi's sleeve, clearly feeling tense.
This problem seemed beyond their syllabus, and she wasn't sure if Lu Qingyi could solve it.
Lu Qingyi raised an eyebrow: "Four days?"
'A problem that took only four days to solve obviously was not challenging. In university, a truly challenging problem would take a month to solve.'
Well, that's what Lu Qingyi believed anyway.
Luo Jia nodded: "Yes."
"What if I can solve it?"
Lu Qingyi leaned on the desk, a faint smile playing on her lips.
'The problem, honestly, seems simple.'
"If you can solve it, I'll resign and let you be the professor," declared the professor, slapping his palm on the desk, twirling his beard.
