/in/foo.cc: In function 'int main()':
/in/foo.cc:5:61: warning: unused variable 'min' [-Wunused-variable]
  int n, x, y, i, max = 0, location, limmin=20001, limmax=0, min=2147483647, spelocation, ans = 0;
                                                             ^~~
/in/foo.cc:5:77: warning: unused variable 'spelocation' [-Wunused-variable]
  int n, x, y, i, max = 0, location, limmin=20001, limmax=0, min=2147483647, spelocation, ans = 0;
                                                                             ^~~~~~~~~~~
/in/foo.cc:5:27: warning: 'location' may be used uninitialized in this function [-Wmaybe-uninitialized]
  int n, x, y, i, max = 0, location, limmin=20001, limmax=0, min=2147483647, spelocation, ans = 0;
                           ^~~~~~~~