Detalii evaluare: ~58039088

Detalii evaluare #58039088

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Rezumat problemă

BSTQ

#4088
Se consideră un șir A, inițial vid. Asupra lui A se aplică n operații de două tipuri:
1 x – adaugă numărul x în A
2 k – dacă A ar fi ordonat crescător, care ar fi a k-a valoare?
Să se răspundă la cele n întrebări.
Folclorul informatic
Fișiere Dan Pracsiu medie
Clasa 11 Structuri de date arborescente Arbori binari
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Detalii

Problema	BSTQ	Operații I/O	`bstq.in`/`bstq.out`
Limita timp	0.5 secunde	Limita memorie	Total: `128 MB` / Stivă `64 MB`
Id soluție	`#58039088`	Utilizator	Dima Erika (DimaE)
Fișier	bstq.cpp	Dimensiune	1.26 KB
Data încărcării	10 Mai 2025, 11:01	Scor / rezultat	Eroare de compilare
Evaluare

Mesaj compilare

bstq.cpp:11:9: error: field 'st' has incomplete type
     Nod st,dr;

         ^
bstq.cpp:11:12: error: field 'dr' has incomplete type
     Nod st,dr;

            ^
bstq.cpp: In constructor 'Nod::Nod(int)':
bstq.cpp:16:9: error: 'st' was not declared in this scope
         st = dr = NULL;

         ^
bstq.cpp:16:14: error: 'dr' was not declared in this scope
         st = dr = NULL;

              ^
bstq.cpp: At global scope:
bstq.cpp:19:5: error: no matching function for call to 'Nod::Nod()'
 Nod rad;

     ^
bstq.cpp:19:5: note: candidates are:
bstq.cpp:12:5: note: Nod::Nod(int)
     Nod(int x)

     ^
bstq.cpp:12:5: note:   candidate expects 1 argument, 0 provided
bstq.cpp:7:8: note: constexpr Nod::Nod(const Nod&)
 struct Nod

        ^
bstq.cpp:7:8: note:   candidate expects 1 argument, 0 provided
bstq.cpp:7:8: note: constexpr Nod::Nod(Nod&&)
bstq.cpp:7:8: note:   candidate expects 1 argument, 0 provided
bstq.cpp: In function 'void Adauga(int)':
bstq.cpp:23:13: error: no match for 'operator==' (operand types are 'Nod' and 'int')
     if (rad == NULL)

             ^
bstq.cpp:23:13: note: candidates are:
In file included from /usr/include/c++/4.8/unordered_set:48:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:116,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/unordered_set.h:1283:5: note: template<class _Value, class _Hash, class _Pred, class _Alloc> bool std::operator==(const std::unordered_multiset<_Value, _Hash, _Pred, _Alloc>&, const std::unordered_multiset<_Value, _Hash, _Pred, _Alloc>&)
     operator==(const unordered_multiset<_Value, _Hash, _Pred, _Alloc>& __x,
     ^
/usr/include/c++/4.8/bits/unordered_set.h:1283:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::unordered_multiset<_Value, _Hash, _Pred, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/unordered_set:48:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:116,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/unordered_set.h:1271:5: note: template<class _Value, class _Hash, class _Pred, class _Alloc> bool std::operator==(const std::unordered_set<_Value, _Hash, _Pred, _Alloc>&, const std::unordered_set<_Value, _Hash, _Pred, _Alloc>&)
     operator==(const unordered_set<_Value, _Hash, _Pred, _Alloc>& __x,
     ^
/usr/include/c++/4.8/bits/unordered_set.h:1271:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::unordered_set<_Value, _Hash, _Pred, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/unordered_map:48:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:115,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/unordered_map.h:1400:5: note: template<class _Key, class _Tp, class _Hash, class _Pred, class _Alloc> bool std::operator==(const std::unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>&, const std::unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>&)
     operator==(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
     ^
/usr/include/c++/4.8/bits/unordered_map.h:1400:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/unordered_map:48:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:115,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/unordered_map.h:1388:5: note: template<class _Key, class _Tp, class _Hash, class _Pred, class _Alloc> bool std::operator==(const std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>&, const std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>&)
     operator==(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
     ^
/usr/include/c++/4.8/bits/unordered_map.h:1388:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:109:0,
                 from bstq.cpp:1:
/usr/include/c++/4.8/scoped_allocator:453:5: note: template<class _OutA1, class _OutA2, class ... _InA> bool std::operator==(const std::scoped_allocator_adaptor<_OutA1, _InA ...>&, const std::scoped_allocator_adaptor<_InnerHead, _InnerTail ...>&)
     operator==(const scoped_allocator_adaptor<_OutA1, _InA...>& __a,
     ^
/usr/include/c++/4.8/scoped_allocator:453:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::scoped_allocator_adaptor<_OutA1, _InA ...>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/regex:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/regex.h:1810:5: note: template<class _Bi_iter, class _Alloc> bool std::operator==(const std::match_results<_FwdIterT, _Alloc>&, const std::match_results<_FwdIterT, _Alloc>&)
     operator==(const match_results<_Bi_iter, _Alloc>& __m1,
     ^
/usr/include/c++/4.8/bits/regex.h:1810:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::match_results<_FwdIterT, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/regex:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/regex.h:1306:5: note: template<class _Bi_iter> bool std::operator==(const std::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)
     operator==(const sub_match<_Bi_iter>& __lhs,
     ^
/usr/include/c++/4.8/bits/regex.h:1306:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::sub_match<_BiIter>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/regex:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/regex.h:1226:5: note: template<class _Bi_iter> bool std::operator==(const typename std::iterator_traits<_Iter>::value_type&, const std::sub_match<_BiIter>&)
     operator==(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
     ^
/usr/include/c++/4.8/bits/regex.h:1226:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   mismatched types 'const std::sub_match<_BiIter>' and 'int'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/regex:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/regex.h:1152:5: note: template<class _Bi_iter> bool std::operator==(const std::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)
     operator==(const sub_match<_Bi_iter>& __lhs,
     ^
/usr/include/c++/4.8/bits/regex.h:1152:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::sub_match<_BiIter>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/regex:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/regex.h:1078:5: note: template<class _Bi_iter> bool std::operator==(const typename std::iterator_traits<_Iter>::value_type*, const std::sub_match<_BiIter>&)
     operator==(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
     ^
/usr/include/c++/4.8/bits/regex.h:1078:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   mismatched types 'const typename std::iterator_traits<_Iter>::value_type*' and 'Nod'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/regex:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/regex.h:1004:5: note: template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::operator==(const std::sub_match<_BiIter>&, std::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)
     operator==(const sub_match<_Bi_iter>& __lhs,
     ^
/usr/include/c++/4.8/bits/regex.h:1004:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::sub_match<_BiIter>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/regex:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/regex.h:930:5: note: template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::operator==(std::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const std::sub_match<_BiIter>&)
     operator==(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
     ^
/usr/include/c++/4.8/bits/regex.h:930:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'std::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/regex:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:108,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/regex.h:857:5: note: template<class _BiIter> bool std::operator==(const std::sub_match<_BiIter>&, const std::sub_match<_BiIter>&)
     operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
     ^
/usr/include/c++/4.8/bits/regex.h:857:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::sub_match<_BiIter>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/forward_list:40:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:102,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/forward_list.tcc:387:5: note: template<class _Tp, class _Alloc> bool std::operator==(const std::forward_list<_Tp, _Alloc>&, const std::forward_list<_Tp, _Alloc>&)
     operator==(const forward_list<_Tp, _Alloc>& __lx,
     ^
/usr/include/c++/4.8/bits/forward_list.tcc:387:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::forward_list<_Tp, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/forward_list:38:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:102,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/forward_list.h:258:5: note: template<class _Tp> bool std::operator==(const std::_Fwd_list_iterator<_Tp>&, const std::_Fwd_list_const_iterator<_Tp>&)
     operator==(const _Fwd_list_iterator<_Tp>& __x,
     ^
/usr/include/c++/4.8/bits/forward_list.h:258:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::_Fwd_list_iterator<_Tp>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/mutex:43:0,
                 from /usr/include/c++/4.8/condition_variable:39,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:101,
                 from bstq.cpp:1:
/usr/include/c++/4.8/system_error:279:3: note: bool std::operator==(const std::error_condition&, const std::error_condition&)
   operator==(const error_condition& __lhs,
   ^
/usr/include/c++/4.8/system_error:279:3: note:   no known conversion for argument 1 from 'Nod' to 'const std::error_condition&'
/usr/include/c++/4.8/system_error:272:3: note: bool std::operator==(const std::error_condition&, const std::error_code&)
   operator==(const error_condition& __lhs, const error_code& __rhs) noexcept
   ^
/usr/include/c++/4.8/system_error:272:3: note:   no known conversion for argument 1 from 'Nod' to 'const std::error_condition&'
/usr/include/c++/4.8/system_error:265:3: note: bool std::operator==(const std::error_code&, const std::error_condition&)
   operator==(const error_code& __lhs, const error_condition& __rhs) noexcept
   ^
/usr/include/c++/4.8/system_error:265:3: note:   no known conversion for argument 1 from 'Nod' to 'const std::error_code&'
/usr/include/c++/4.8/system_error:260:3: note: bool std::operator==(const std::error_code&, const std::error_code&)
   operator==(const error_code& __lhs, const error_code& __rhs) noexcept
   ^
/usr/include/c++/4.8/system_error:260:3: note:   no known conversion for argument 1 from 'Nod' to 'const std::error_code&'
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0,
                 from bstq.cpp:1:
/usr/include/c++/4.8/valarray:1179:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__equal_to, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__equal_to, _Tp>::result_type> std::operator==(const _Tp&, const std::valarray<_Tp>&)
 _DEFINE_BINARY_OPERATOR(==, __equal_to)
 ^
/usr/include/c++/4.8/valarray:1179:1: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   mismatched types 'const std::valarray<_Tp>' and 'int'
     if (rad == NULL)

                ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0,
                 from bstq.cpp:1:
/usr/include/c++/4.8/valarray:1179:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__equal_to, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__equal_to, _Tp>::result_type> std::operator==(const std::valarray<_Tp>&, const _Tp&)
 _DEFINE_BINARY_OPERATOR(==, __equal_to)
 ^
/usr/include/c++/4.8/valarray:1179:1: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::valarray<_Tp>'
     if (rad == NULL)

                ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94:0,
                 from bstq.cpp:1:
/usr/include/c++/4.8/valarray:1179:1: note: template<class _Tp> std::_Expr<std::_BinClos<std::__equal_to, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__equal_to, _Tp>::result_type> std::operator==(const std::valarray<_Tp>&, const std::valarray<_Tp>&)
 _DEFINE_BINARY_OPERATOR(==, __equal_to)
 ^
/usr/include/c++/4.8/valarray:1179:1: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::valarray<_Tp>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/valarray:587:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:414:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__equal_to, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(==, __equal_to)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:414:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::valarray<typename _Dom::value_type>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/valarray:587:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:414:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__equal_to, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(==, __equal_to)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:414:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/valarray:587:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:414:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__equal_to, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(==, __equal_to)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:414:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'int'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/valarray:587:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:414:5: note: template<class _Dom> std::_Expr<std::_BinClos<std::__equal_to, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)
     _DEFINE_EXPR_BINARY_OPERATOR(==, __equal_to)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:414:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/valarray:587:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:94,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/valarray_after.h:414:5: note: template<class _Dom1, class _Dom2> std::_Expr<std::_BinClos<std::__equal_to, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(==, __equal_to)
     ^
/usr/include/c++/4.8/bits/valarray_after.h:414:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/stack:61:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:88,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/stl_stack.h:243:5: note: template<class _Tp, class _Seq> bool std::operator==(const std::stack<_Tp, _Seq>&, const std::stack<_Tp, _Seq>&)
     operator==(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y)
     ^
/usr/include/c++/4.8/bits/stl_stack.h:243:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::stack<_Tp, _Seq>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/set:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:86,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/stl_multiset.h:739:5: note: template<class _Key, class _Compare, class _Alloc> bool std::operator==(const std::multiset<_Key, _Compare, _Alloc>&, const std::multiset<_Key, _Compare, _Alloc>&)
     operator==(const multiset<_Key, _Compare, _Alloc>& __x,
     ^
/usr/include/c++/4.8/bits/stl_multiset.h:739:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::multiset<_Key, _Compare, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/set:61:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:86,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/stl_set.h:754:5: note: template<class _Key, class _Compare, class _Alloc> bool std::operator==(const std::set<_Key, _Compare, _Alloc>&, const std::set<_Key, _Compare, _Alloc>&)
     operator==(const set<_Key, _Compare, _Alloc>& __x,
     ^
/usr/include/c++/4.8/bits/stl_set.h:754:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::set<_Key, _Compare, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/queue:64:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:85,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/stl_queue.h:268:5: note: template<class _Tp, class _Seq> bool std::operator==(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)
     operator==(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y)
     ^
/usr/include/c++/4.8/bits/stl_queue.h:268:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::queue<_Tp, _Seq>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/memory:82:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:81,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/shared_ptr.h:338:5: note: template<class _Tp> bool std::operator==(std::nullptr_t, const std::shared_ptr<_Tp1>&)
     operator==(nullptr_t, const shared_ptr<_Tp>& __a) noexcept
     ^
/usr/include/c++/4.8/bits/shared_ptr.h:338:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   cannot convert 'rad' (type 'Nod') to type 'std::nullptr_t'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/memory:82:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:81,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/shared_ptr.h:333:5: note: template<class _Tp> bool std::operator==(const std::shared_ptr<_Tp1>&, std::nullptr_t)
     operator==(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
     ^
/usr/include/c++/4.8/bits/shared_ptr.h:333:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::shared_ptr<_Tp1>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/memory:82:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:81,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/shared_ptr.h:327:5: note: template<class _Tp1, class _Tp2> bool std::operator==(const std::shared_ptr<_Tp1>&, const std::shared_ptr<_Tp2>&)
     operator==(const shared_ptr<_Tp1>& __a,
     ^
/usr/include/c++/4.8/bits/shared_ptr.h:327:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::shared_ptr<_Tp1>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/bits/shared_ptr.h:52:0,
                 from /usr/include/c++/4.8/memory:82,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:81,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/shared_ptr_base.h:1040:5: note: template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator==(std::nullptr_t, const std::__shared_ptr<_Tp, _Lp>&)
     operator==(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept
     ^
/usr/include/c++/4.8/bits/shared_ptr_base.h:1040:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   cannot convert 'rad' (type 'Nod') to type 'std::nullptr_t'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/bits/shared_ptr.h:52:0,
                 from /usr/include/c++/4.8/memory:82,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:81,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/shared_ptr_base.h:1035:5: note: template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator==(const std::__shared_ptr<_Tp, _Lp>&, std::nullptr_t)
     operator==(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
     ^
/usr/include/c++/4.8/bits/shared_ptr_base.h:1035:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::__shared_ptr<_Tp, _Lp>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/bits/shared_ptr.h:52:0,
                 from /usr/include/c++/4.8/memory:82,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:81,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/shared_ptr_base.h:1029:5: note: template<class _Tp1, class _Tp2, __gnu_cxx::_Lock_policy _Lp> bool std::operator==(const std::__shared_ptr<_Tp1, _Lp>&, const std::__shared_ptr<_Tp2, _Lp>&)
     operator==(const __shared_ptr<_Tp1, _Lp>& __a,
     ^
/usr/include/c++/4.8/bits/shared_ptr_base.h:1029:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::__shared_ptr<_Tp1, _Lp>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/memory:81:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:81,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/unique_ptr.h:500:5: note: template<class _Tp, class _Dp> bool std::operator==(std::nullptr_t, const std::unique_ptr<_Tp, _Dp>&)
     operator==(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) noexcept
     ^
/usr/include/c++/4.8/bits/unique_ptr.h:500:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   cannot convert 'rad' (type 'Nod') to type 'std::nullptr_t'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/memory:81:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:81,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/unique_ptr.h:495:5: note: template<class _Tp, class _Dp> bool std::operator==(const std::unique_ptr<_Tp, _Dp>&, std::nullptr_t)
     operator==(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept
     ^
/usr/include/c++/4.8/bits/unique_ptr.h:495:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::unique_ptr<_Tp, _Dp>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/memory:81:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:81,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/unique_ptr.h:489:5: note: template<class _Tp, class _Dp, class _Up, class _Ep> bool std::operator==(const std::unique_ptr<_Tp, _Dp>&, const std::unique_ptr<_Up, _Ep>&)
     operator==(const unique_ptr<_Tp, _Dp>& __x,
     ^
/usr/include/c++/4.8/bits/unique_ptr.h:489:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::unique_ptr<_Tp, _Dp>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/map:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:80,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/stl_multimap.h:864:5: note: template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator==(const std::multimap<_Key, _Tp, _Compare, _Alloc>&, const std::multimap<_Key, _Tp, _Compare, _Alloc>&)
     operator==(const multimap<_Key, _Tp, _Compare, _Alloc>& __x,
     ^
/usr/include/c++/4.8/bits/stl_multimap.h:864:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::multimap<_Key, _Tp, _Compare, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/map:61:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:80,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/stl_map.h:962:5: note: template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator==(const std::map<_Key, _Tp, _Compare, _Alloc>&, const std::map<_Key, _Tp, _Compare, _Alloc>&)
     operator==(const map<_Key, _Tp, _Compare, _Alloc>& __x,
     ^
/usr/include/c++/4.8/bits/stl_map.h:962:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::map<_Key, _Tp, _Compare, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/map:60:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:80,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/stl_tree.h:907:5: note: template<class _Key, class _Val, class _KeyOfValue, class _Compare, class _Alloc> bool std::operator==(const std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>&, const std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>&)
     operator==(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x,
     ^
/usr/include/c++/4.8/bits/stl_tree.h:907:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/map:60:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:80,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/stl_tree.h:310:5: note: template<class _Val> bool std::operator==(const std::_Rb_tree_iterator<_Tp>&, const std::_Rb_tree_const_iterator<_Val>&)
     operator==(const _Rb_tree_iterator<_Val>& __x,
     ^
/usr/include/c++/4.8/bits/stl_tree.h:310:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::_Rb_tree_iterator<_Tp>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/list:63:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:78,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/stl_list.h:1602:5: note: template<class _Tp, class _Alloc> bool std::operator==(const std::list<_Tp, _Alloc>&, const std::list<_Tp, _Alloc>&)
     operator==(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y)
     ^
/usr/include/c++/4.8/bits/stl_list.h:1602:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::list<_Tp, _Alloc>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/list:63:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:78,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/stl_list.h:276:5: note: template<class _Val> bool std::operator==(const std::_List_iterator<_Tp>&, const std::_List_const_iterator<_Val>&)
     operator==(const _List_iterator<_Val>& __x,
     ^
/usr/include/c++/4.8/bits/stl_list.h:276:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::_List_iterator<_Tp>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/iterator:66:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:76,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/stream_iterator.h:130:5: note: template<class _Tp, class _CharT, class _Traits, class _Dist> bool std::operator==(const std::istream_iterator<_Tp, _CharT, _Traits, _Dist>&, const std::istream_iterator<_Tp, _CharT, _Traits, _Dist>&)
     operator==(const istream_iterator<_Tp, _CharT, _Traits, _Dist>& __x,
     ^
/usr/include/c++/4.8/bits/stream_iterator.h:130:5: note:   template argument deduction/substitution failed:
In file included from /usr/include/sched.h:28:0,
                 from /usr/include/pthread.h:23,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr-default.h:35,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/gthr.h:148,
                 from /usr/include/c++/4.8/ext/atomicity.h:35,
                 from /usr/include/c++/4.8/bits/ios_base.h:39,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from bstq.cpp:1:
bstq.cpp:23:16: note:   'Nod' is not derived from 'const std::istream_iterator<_Tp, _CharT, _Traits, _Dist>'
     if (rad == NULL)

                ^
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:67,
                 from bstq.cpp:1:
/usr/include/c++/4.8/bits/
Cum funcționează evaluarea?

www.pbinfo.ro permite evaluarea a două tipuri de probleme:
probleme la care rezolvarea presupune scrierea unui program complet
probleme la care rezolvarea presupune scrierea unei secvențe de program - câteva instrucțiuni, o listă de declarații, una sau mai multe funcții, etc.
Problema BSTQ face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:
Programul sursă este compilat folosind compilatorul corespunzător. Dacă în urma compilării se obțin erori sau avertismente, acestea sunt afișate în această pagină.
Dacă programul a fost compilat, executabilul obținut va fi rulat, furnizându-i-se unul sau mai multe seturi de date de intrare, în concordanță cu restricțiile specifice problemei. Pentru fiecare set de date se obține un anumit punctaj, în raport cu corectitudinea soluției tale.
Suma punctajelor acordate pe testele utilizate pentru verificare este 100. Astfel, soluția ta poate obține cel mult 100 de puncte, caz în care se poate considera corectă.
Du-te sus!