Explanation:
I think that you might have used it a lot or its just a glitch and will come back after some time.
It might be that your screen cracked.
But try re-booting if that does not work, wait and take off the battery.
Answer:
expr.at(g) returns a string, not a char. They are not the same thing and that is what the compiler is complaining about.
Answer:
precision
Explanation:
In simple English precise means exact or something specific
