"You solve at night."
Translation:Tu rezolvi noaptea.
"Okay, we have a thousand math problems to solve by Monday. Let's split into two shifts. I'll solve during the day. You solve at night." =)
May be, but without context it doesn't sound good at all and it's out of place. I'm sure there are plenty other options for sentences that start with ''You'' ,if thats what they were going for.
For example: Tu rezolvi problemele noaptea./ You solve the problems at night. - Would've been much better, in my opinion.