0_0_24570861_31954.cpp: In function 'void bfs()':
0_0_24570861_31954.cpp:52:6: error: no match for 'operator-' (operand type is 'std::ostream {aka std::basic_ostream<char>}')
}-
^
0_0_24570861_31954.cpp:52:6: note: candidates are:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:67:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_24570861_31954.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:328:5: note: template<class _Iterator> typename std::reverse_iterator<_Iterator>::difference_type std::operator-(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
operator-(const reverse_iterator<_Iterator>& __x,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:328:5: note: template argument deduction/substitution failed:
0_0_24570861_31954.cpp:53:5: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::reverse_iterator<_Iterator>'
cout << "-1" << endl;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:67:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_24570861_31954.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:380:5: note: template<class _IteratorL, class _IteratorR> decltype ((__y.base() - __x.base())) std::operator-(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)
operator-(const reverse_iterator<_IteratorL>& __x,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:380:5: note: template argument deduction/substitution failed:
0_0_24570861_31954.cpp:53:5: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::reverse_iterator<_Iterator>'
cout << "-1" << endl;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:67:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_24570861_31954.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:1121:5: note: template<class _IteratorL, class _IteratorR> decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_Iterator>&, const std::move_iterator<_IteratorR>&)
operator-(const move_iterator<_IteratorL>& __x,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:1121:5: note: template argument deduction/substitution failed:
0_0_24570861_31954.cpp:53:5: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::move_iterator<_Iterator>'
cout << "-1" << endl;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:67:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
from 0_0_24570861_31954.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:1128:5: note: template<class _Iterator> decltype ((__x.base() - __y.base())) std::operator-(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&)
operator-(const move_iterator<_Iterator>& __x,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_iterator.h:1128:5: note: template argument deduction/substitution failed:
0_0_24570861_31954.cpp:53:5: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::move_iterator<_Iterator>'
cout << "-1" << endl;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/deque:64:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_24570861_31954.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_deque.h:335:5: note: template<class _Tp, class _Ref, class _Ptr> typename std::_Deque_iterator<_Tp, _Ref, _Ptr>::difference_type std::operator-(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _Ref, _Ptr>&)
operator-(const _Deque_iterator<_Tp, _Ref, _Ptr>& __x,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_deque.h:335:5: note: template argument deduction/substitution failed:
0_0_24570861_31954.cpp:53:5: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
cout << "-1" << endl;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/deque:64:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:60,
from 0_0_24570861_31954.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_deque.h:347:5: note: template<class _Tp, class _RefL, class _PtrL, class _RefR, class _PtrR> typename std::_Deque_iterator<_Tp, _Ref, _Ptr>::difference_type std::operator-(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _RefR, _PtrR>&)
operator-(const _Deque_iterator<_Tp, _RefL, _PtrL>& __x,
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_deque.h:347:5: note: template argument deduction/substitution failed:
0_0_24570861_31954.cpp:53:5: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
cout << "-1" << endl;
^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/vector:65:0,
from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:61,
from 0_0_24570861_31954.cpp:2:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_bvector.h:208:3: note: std::ptrdiff_t std::operator-(const std::_Bit_iterator_base&, const std::_Bit_iterator_base&)
operator-(const _Bit_iterator_base& __x, const _Bit_iterator_base& __y)
^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_bvector.h:208:3: note: candidate expects 2 arguments, 1 provided
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