/in/foo.cc: In function 'int main()':
/in/foo.cc:15:15: warning: 'y' may be used uninitialized [-Wmaybe-uninitialized]
   15 |         cout<<y<<endl;
      |               ^
/in/foo.cc:6:15: note: 'y' was declared here
    6 |         int x,y;
      |               ^