Find the output

Question

#include<stdio.h>

int main()

{

    int a, b = 10;

    a = -b--;

    printf("a = %d, b = %d", a, b);

    return 0;

}

Answer 1

Just use the sololearn's Code Playground to get the output.

Answer 2

In case you already know the output but you are just confused about it:

b-- is postdecrement, i.e.
at first the negative value of b is assigned to a and afterwards b is decremented

if it was
a = -(--b)
the output for a would be -9