/in/foo.c: In function 'FindMaxNegative':
/in/foo.c:14:9: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return max;
         ^~~
/in/foo.c: In function 'main':
/in/foo.c:26:2: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]
  printf("%d %d", max1, max2);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/in/foo.c:26:2: warning: 'max' may be used uninitialized in this function [-Wmaybe-uninitialized]