foo.c: In function ‘main’:
foo.c:6:9: warning: implicit declaration of function ‘scanf_s’; did you mean ‘scanf’? [-Wimplicit-function-declaration]
    6 |         scanf_s("%d %d", &x, &y);
      |         ^~~~~~~
      |         scanf
foo.c:18:9: error: expected declaration or statement at end of input
   18 |         return 0;
      |         ^~~~~~