/in/foo.cc: In function 'int max(int)':
/in/foo.cc:35:17: warning: 'm' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return ma*100+m*10+mi;
                ~^~~
/in/foo.cc: In function 'int min(int)':
/in/foo.cc:69:17: warning: 'm' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return mi*100+m*10+ma;
                ~^~~