/in/foo.c: In function 'main':
/in/foo.c:6:2: warning: implicit declaration of function 'scanf_s' [-Wimplicit-function-declaration]
  scanf_s("%d %d", &x, &y);
  ^~~~~~~
/in/foo.c:18:2: error: expected declaration or statement at end of input
  return 0;
  ^~~~~~