C222 Who Exactly Was This?!

Unexpectedly, Lin Feng's solution to the problem had stumped Teacher Sun.

At that moment, Liu Shiyu approached Lin Feng and whispered, "Do you actually know if the solution is correct, or are you just bluffing? Did you truly solve it?"

Lin Feng just smiled in response to her inquiry and earnestly replied, "I'm not one to lie, except maybe to girls. So yes, I've solved the problem