foo.cc: In function 'void bfs()':
foo.cc:29:8: error: 'qz' was not declared in this scope
b[qx][qz]=1;
^~
foo.cc:29:8: note: suggested alternative: 'qy'
b[qx][qz]=1;
^~
qy
foo.cc:43:28: error: no match for 'operator+' (operand types are 'note' and 'int')
que[tail].step=que[head]+1;
~~~~~~~~~^~
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
from /usr/include/c++/7/bits/char_traits.h:39,
from /usr/include/c++/7/ios:40,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/stl_iterator.h:400:5: note: candidate: template<class _Iterator> std::reverse_iterator<_Iterator> std::operator+(typename std::reverse_iterator<_Iterator>::difference_type, const std::reverse_iterator<_Iterator>&)
operator+(typename reverse_iterator<_Iterator>::difference_type __n,
^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:400:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/bits/stl_algobase.h:67:0,
from /usr/include/c++/7/bits/char_traits.h:39,
from /usr/include/c++/7/ios:40,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/stl_iterator.h:1201:5: note: candidate: template<class _Iterator> std::move_iterator<_IteratorL> std::operator+(typename std::move_iterator<_IteratorL>::difference_type, const std::move_iterator<_IteratorL>&)
operator+(typename move_iterator<_Iterator>::difference_type __n,
^~~~~~~~
/usr/include/c++/7/bits/stl_iterator.h:1201:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:5888:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:5888:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: 'note' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:53:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.tcc:1157:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
operator+(const _CharT* __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.tcc:1157:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: mismatched types 'const _CharT*' and 'note'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:53:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.tcc:1173:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(_CharT, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
operator+(_CharT __lhs, const basic_string<_CharT, _Traits, _Alloc>& __rhs)
^~~~~~~~
/usr/include/c++/7/bits/basic_string.tcc:1173:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'int'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:5925:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:5925:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: 'note' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:5941:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, _CharT)
operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, _CharT __rhs)
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:5941:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: 'note' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:5953:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:5953:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: 'note' is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:5959:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&)
operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:5959:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: 'note' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:5965:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&)
operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:5965:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: 'note' is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:5977:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(const _CharT*, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&)
operator+(const _CharT* __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:5977:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: mismatched types 'const _CharT*' and 'note'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:5983:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(_CharT, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&)
operator+(_CharT __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:5983:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: mismatched types 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>' and 'int'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:5989:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&, const _CharT*)
operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:5989:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: 'note' is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
que[tail].step=que[head]+1;
^
In file included from /usr/include/c++/7/string:52:0,
from /usr/include/c++/7/bits/locale_classes.h:40,
from /usr/include/c++/7/bits/ios_base.h:41,
from /usr/include/c++/7/ios:42,
from /usr/include/c++/7/ostream:38,
from /usr/include/c++/7/iostream:39,
from foo.cc:1:
/usr/include/c++/7/bits/basic_string.h:5995:5: note: candidate: template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Alloc> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&&, _CharT)
operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
^~~~~~~~
/usr/include/c++/7/bits/basic_string.h:5995:5: note: template argument deduction/substitution failed:
foo.cc:43:29: note: 'note' is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
que[tail].step=que[head]+1;
^
foo.cc:51:3: error: expected ';' before '}' token
}
^
foo.cc:54:1: error: a function-definition is not allowed here before '{' token
{
^
foo.cc:63:1: error: expected '}' at end of input
}
^
aegtyg LV 8
undefined
