/in/foo.cc:6:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning(disable:4996)
 
/in/foo.cc: In function 'int main()':
/in/foo.cc:53:25: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long int' [-Wformat=]
  printf(" %d", layer + 1);
                         ^