foo.cpp: In function 'int main()':
foo.cpp:45:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for (int i=x0;i>=1;i--) cout<<" "<<x[i];cout<<endl;
  ^~~
foo.cpp:45:42: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  for (int i=x0;i>=1;i--) cout<<" "<<x[i];cout<<endl;
                                          ^~~~