/in/foo.cc: In function 'int main()':
/in/foo.cc:22:19: warning: 'maxd' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<maxc<<" "<<maxd<<endl;
                   ^
/in/foo.cc:22:8: warning: 'maxc' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<maxc<<" "<<maxd<<endl;
        ^