Quang Minh

“You’re familiar with the P = NP problem, right?” Yukawa asked from behind him. Ishigami looked around. “You’re referring to the question of whether or not it is as easy to determine the accuracy of another person’s results as it is to solve the problem yourself—or, failing that, how the difference in difficulty compares. It’s one of the questions the Clay Mathematics Institute has offered a prize to solve.”
― Keigo Higashino, The Devotion of Suspect X