/in/foo.cc:19:16: error: stray '\357' in program
  sort(a+1,a+1+i，cmpn);
                ^
/in/foo.cc:19:17: error: stray '\274' in program
  sort(a+1,a+1+i，cmpn);
                 ^
/in/foo.cc:19:18: error: stray '\214' in program
  sort(a+1,a+1+i，cmpn);
                  ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:16:27: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'int' [-Wformat=]
  for(; scanf("%d",a[i].hao)!=EOF; i++) {
                           ^
/in/foo.cc:19:19: error: expected ')' before 'cmpn'
  sort(a+1,a+1+i，cmpn);
                   ^~~~
In file included from /usr/include/c++/6/bits/stl_algobase.h:71:0,
                 from /usr/include/c++/6/algorithm:61,
                 from /in/foo.cc:2:
/usr/include/c++/6/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_less_iter::operator()(_Iterator1, _Iterator2) const [with _Iterator1 = shu*; _Iterator2 = shu*]':
/usr/include/c++/6/bits/stl_algo.h:1844:14:   required from 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = shu*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/6/bits/stl_algo.h:1882:25:   required from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = shu*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/6/bits/stl_algo.h:1968:31:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = shu*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/6/bits/stl_algo.h:4707:18:   required from 'void std::sort(_RAIter, _RAIter) [with _RAIter = shu*]'
/in/foo.cc:19:23:   required from here
/usr/include/c++/6/bits/predefined_ops.h:43:23: error: no match for 'operator<' (operand types are 'shu' and 'shu')
       { return *__it1 < *__it2; }
                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/6/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/6/algorithm:61,
                 from /in/foo.cc:2:
/usr/include/c++/6/bits/stl_iterator.h:885:5: note: candidate: template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)
     operator<(const __normal_iterator<_IteratorL, _Container>& __lhs,
     ^~~~~~~~
/usr/include/c++/6/bits/stl_iterator.h:885:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/6/bits/stl_algobase.h:71:0,
                 from /usr/include/c++/6/algorithm:61,
                 from /in/foo.cc:2:
/usr/include/c++/6/bits/predefined_ops.h:43:23: note:   'shu' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
       { return *__it1 < *__it2; }
                ~~~~~~~^~~~~~~~
In file included from /usr/include/c++/6/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/6/algorithm:61,
                 from /in/foo.cc:2:
/usr/include/c++/6/bits/stl_iterator.h:892:5: note: candidate: template<class _Iterator, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)
     operator<(const __normal_iterator<_Iterator, _Container>& __lhs,
     ^~~~~~~~
/usr/include/c++/6/bits/stl_iterator.h:892:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/6/bits/stl_algobase.h:71:0,
                 from /usr/include/c++/6/algorithm:61,
                 from /in/foo.cc:2:
/usr/include/c++/6/bits/predefined_ops.h:43:23: note:   'shu' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
       { return *__it1 < *__it2; }
                ~~~~~~~^~~~~~~~
/usr/include/c++/6/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Val_less_iter::operator()(_Value&, _Iterator) const [with _Value = shu; _Iterator = shu*]':
/usr/include/c++/6/bits/stl_algo.h:1825:20:   required from 'void std::__unguarded_linear_insert(_RandomAccessIterator, _Compare) [with _RandomAccessIterator = shu*; _Compare = __gnu_cxx::__ops::_Val_less_iter]'
/usr/include/c++/6/bits/stl_algo.h:1852:36:   required from 'void std::__insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = shu*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/6/bits/stl_algo.h:1882:25:   required from 'void std::__final_insertion_sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = shu*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/6/bits/stl_algo.h:1968:31:   required from 'void std::__sort(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = shu*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/6/bits/stl_algo.h:4707:18:   required from 'void std::sort(_RAIter, _RAIter) [with _RAIter = shu*]'
/in/foo.cc:19:23:   required from here
/usr/include/c++/6/bits/predefined_ops.h:72:22: error: no match for 'operator<' (operand types are 'shu' and 'shu')
       { return __val < *__it; }
                ~~~~~~^~~~~~~
In file included from /usr/include/c++/6/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/6/algorithm:61,
                 from /in/foo.cc:2:
/usr/include/c++/6/bits/stl_iterator.h:885:5: note: candidate: template<class _IteratorL, class _IteratorR, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)
     operator<(const __normal_iterator<_IteratorL, _Container>& __lhs,
     ^~~~~~~~
/usr/include/c++/6/bits/stl_iterator.h:885:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/6/bits/stl_algobase.h:71:0,
                 from /usr/include/c++/6/algorithm:61,
                 from /in/foo.cc:2:
/usr/include/c++/6/bits/predefined_ops.h:72:22: note:   'shu' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
       { return __val < *__it; }
                ~~~~~~^~~~~~~
In file included from /usr/include/c++/6/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/6/algorithm:61,
                 from /in/foo.cc:2:
/usr/include/c++/6/bits/stl_iterator.h:892:5: note: candidate: template<class _Iterator, class _Container> bool __gnu_cxx::operator<(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)
     operator<(const __normal_iterator<_Iterator, _Container>& __lhs,
     ^~~~~~~~
/usr/include/c++/6/bits/stl_iterator.h:892:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/c++/6/bits/stl_algobase.h:71:0,
                 from /usr/include/c++/6/algorithm:61,
                 from /in/foo.cc:2:
/usr/include/c++/6/bits/predefined_ops.h:72:22: note:   'shu' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
       { return __val < *__it; }
                ~~~~~~^~~~~~~
/usr/include/c++/6/bits/predefined_ops.h: In instantiation of 'bool __gnu_cxx::__ops::_Iter_less_val::operator()(_Iterator, _Value&) const [with _Iterator = shu*; _Value = shu]':
/usr/include/c++/6/bits/stl_heap.h:129:48:   required from 'void std::__push_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare) [with _RandomAccessIterator = shu*; _Distance = long int; _Tp = shu; _Compare = __gnu_cxx::__ops::_Iter_less_val]'
/usr/include/c++/6/bits/stl_heap.h:230:23:   required from 'void std::__adjust_heap(_RandomAccessIterator, _Distance, _Distance, _Tp, _Compare) [with _RandomAccessIterator = shu*; _Distance = long int; _Tp = shu; _Compare = __gnu_cxx::__ops::_Iter_less_iter]'
/usr/include/c++/6/bits/stl_heap.h:335:22:   required from 'void std::__make_heap(_RandomAccessIterator, _RandomAccessIterator, _Compare) [with _RandomAccessIterator = shu*; _Compare = __gnu_cxx::__ops::_Iter_less_iter]