/in/foo.cc: In function 'int main()':
/in/foo.cc:31:23: warning: 'max2' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<max1<<" "<<max2;
                       ^
/in/foo.cc:31:14: warning: 'max1' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<max1<<" "<<max2;
              ^~~