What is the output of this code?

Question

int i=0;
int x=++i-i--;
printf("%d",x);
please try it in your ide and explain me!!!

Answer 1

it's 0. ++i(1) - i-- (1). postfix is applied after the assignment operation is finished

Answer 2

but I am getting -1 as output ?!

Answer 3

or an exit code?)