ultimate reality1

Hi, I was wondering this: if I ask a user to input 2 values in int main() as so...(not real code, just an inkling of what I want to do)

int main()

int x;

int y;

scanf ("%d","%d", &x, &y);

and then pass those values to some function which error checks them like this

int OTHER_FUNCTION (x, y);

Now if I return back to main after error checking, will main still have x and y as the user input values or are they totally destroyed right after I exit main function to the OTHER_FUNCTION. If they are, then how could I possibly go about making sure they don't get destroyed after a function call (without using global variables)

Thanks