C76 Genius contestant hu xiaodong

"Huh?" Submitting the paper in advance? Is there a mistake?

invigilator looked at his watch and only 20 minutes had passed.

It had only been twenty minutes and he had already handed in the paper. He was definitely fooling around.

Was this brat here for the paste?

For an examination of this level of difficulty, let alone 20 minutes, he might not even be able to pass it within 2 hours