/in/foo.cc: In function 'int main()':
/in/foo.cc:5:7: error: expected initializer before '!=' token
  int x!=0,y;
       ^~
/in/foo.cc:6:7: error: 'x' was not declared in this scope
  cin>>x>>y;
       ^
/in/foo.cc:6:10: error: 'y' was not declared in this scope
  cin>>x>>y;
          ^