/in/foo.cc: In function 'int main()':
/in/foo.cc:37:19: warning: 'ansy' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<ansx<<' '<<ansy<<endl;
                   ^~~~
/in/foo.cc:37:14: warning: 'ansx' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<ansx<<' '<<ansy<<endl;
              ^~~