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Detalii evaluare #58521415

Rezumat problemă

#875 Stiva

Să se scrie un program care gestionează o stivă de numere întregi. Inițial stiva este vidă. Programul va citi de la tastatură o listă de operații, care pot fi:

  • push X – adaugă valoarea întreagă X pe stivă;
  • pop – elimină elementul din vârful stivei;
  • top – afișează elementul din vârful stivei.

Programul va realiza asupra stivei operațiile citite, în ordine. Afișările se fac pe ecran, câte o valoare pe linie.

Rezolvă

Detalii

Problema Stiva Operații I/O tastatură/ecran
Limita timp 0.1 secunde Limita memorie Total: 64 MB / Stivă 8 MB
Id soluție #58521415 Utilizator Streian Alexandra (astreian12)
Fișier stiva.cpp Dimensiune 502 B
Data încărcării 13 Iunie 2025, 16:50 Scor / rezultat Eroare de compilare

Evaluare


Mesaj compilare

stiva.cpp:13:14: warning: multi-character character constant [-Wmultichar]
     if(op == 'push')

              ^
stiva.cpp:18:19: warning: multi-character character constant [-Wmultichar]
     else if(op == 'pop')

                   ^
stiva.cpp: In function 'void afis(std::stack<int>&)':
stiva.cpp:13:11: error: no match for 'operator==' (operand types are 'std::string {aka std::basic_string<char>}' and 'int')
     if(op == 'push')

           ^
stiva.cpp:13:11: note: candidates are:
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_pair.h:214:5: note: template<class _T1, class _T2> constexpr bool std::operator==(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)
     operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
     ^
/usr/include/c++/4.8/bits/stl_pair.h:214:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::pair<_T1, _T2>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:291:5: note: template<class _Iterator> bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
     operator==(const reverse_iterator<_Iterator>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:291:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::reverse_iterator<_Iterator>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:341:5: note: template<class _IteratorL, class _IteratorR> bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)
     operator==(const reverse_iterator<_IteratorL>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:341:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::reverse_iterator<_Iterator>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:1031:5: note: template<class _IteratorL, class _IteratorR> bool std::operator==(const std::move_iterator<_Iterator>&, const std::move_iterator<_IteratorR>&)
     operator==(const move_iterator<_IteratorL>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:1031:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::move_iterator<_Iterator>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:1037:5: note: template<class _Iterator> bool std::operator==(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&)
     operator==(const move_iterator<_Iterator>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:1037:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::move_iterator<_Iterator>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/deque:61:0,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/allocator.h:128:5: note: template<class _T1, class _T2> bool std::operator==(const std::allocator<_Tp1>&, const std::allocator<_T2>&)
     operator==(const allocator<_T1>&, const allocator<_T2>&)
     ^
/usr/include/c++/4.8/bits/allocator.h:128:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::allocator<_Tp1>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/deque:61:0,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/allocator.h:133:5: note: template<class _Tp> bool std::operator==(const std::allocator<_Tp1>&, const std::allocator<_Tp1>&)
     operator==(const allocator<_Tp>&, const allocator<_Tp>&)
     ^
/usr/include/c++/4.8/bits/allocator.h:133:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::allocator<_Tp1>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_deque.h:247:5: note: template<class _Tp, class _Ref, class _Ptr> bool std::operator==(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _Ref, _Ptr>&)
     operator==(const _Deque_iterator<_Tp, _Ref, _Ptr>& __x,
     ^
/usr/include/c++/4.8/bits/stl_deque.h:247:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_deque.h:254:5: note: template<class _Tp, class _RefL, class _PtrL, class _RefR, class _PtrR> bool std::operator==(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _RefR, _PtrR>&)
     operator==(const _Deque_iterator<_Tp, _RefL, _PtrL>& __x,
     ^
/usr/include/c++/4.8/bits/stl_deque.h:254:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_deque.h:1957:5: note: template<class _Tp, class _Alloc> bool std::operator==(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&)
     operator==(const deque<_Tp, _Alloc>& __x,
     ^
/usr/include/c++/4.8/bits/stl_deque.h:1957:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::deque<_Tp, _Alloc>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/stack:61:0,
                 from stiva.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:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::stack<_Tp, _Seq>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/bits/char_traits.h:40:0,
                 from /usr/include/c++/4.8/string:40,
                 from stiva.cpp:2:
/usr/include/c++/4.8/bits/postypes.h:216:5: note: template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)
     operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
     ^
/usr/include/c++/4.8/bits/postypes.h:216:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::fpos<_StateT>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from stiva.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2486:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::basic_string<_CharT, _Traits, _Alloc>&, const std::basic_string<_CharT, _Traits, _Alloc>&)
     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2486:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   mismatched types 'const std::basic_string<_CharT, _Traits, _Alloc>' and 'int'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from stiva.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2493:5: note: template<class _CharT> typename __gnu_cxx::__enable_if<std::__is_char<_Tp>::__value, bool>::__type std::operator==(const std::basic_string<_CharT>&, const std::basic_string<_CharT>&)
     operator==(const basic_string<_CharT>& __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2493:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   mismatched types 'const std::basic_string<_CharT>' and 'int'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from stiva.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2507:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const _CharT*, const std::basic_string<_CharT, _Traits, _Alloc>&)
     operator==(const _CharT* __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2507:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   mismatched types 'const _CharT*' and 'std::basic_string<char>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from stiva.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2519:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2519:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   mismatched types 'const _CharT*' and 'int'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/bits/locale_facets.h:48:0,
                 from /usr/include/c++/4.8/bits/basic_ios.h:37,
                 from /usr/include/c++/4.8/ios:44,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from stiva.cpp:3:
/usr/include/c++/4.8/bits/streambuf_iterator.h:204:5: note: template<class _CharT, class _Traits> bool std::operator==(const std::istreambuf_iterator<_CharT, _Traits>&, const std::istreambuf_iterator<_CharT, _Traits>&)
     operator==(const istreambuf_iterator<_CharT, _Traits>& __a,
     ^
/usr/include/c++/4.8/bits/streambuf_iterator.h:204:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::istreambuf_iterator<_CharT, _Traits>'
     if(op == 'push')

              ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/c++allocator.h:33:0,
                 from /usr/include/c++/4.8/bits/allocator.h:46,
                 from /usr/include/c++/4.8/deque:61,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/ext/new_allocator.h:139:5: note: template<class _Tp> bool __gnu_cxx::operator==(const __gnu_cxx::new_allocator<_Tp>&, const __gnu_cxx::new_allocator<_Tp>&)
     operator==(const new_allocator<_Tp>&, const new_allocator<_Tp>&)
     ^
/usr/include/c++/4.8/ext/new_allocator.h:139:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const __gnu_cxx::new_allocator<_Tp>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:811:5: note: 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++/4.8/bits/stl_iterator.h:811:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
     if(op == 'push')

              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:805:5: note: 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++/4.8/bits/stl_iterator.h:805:5: note:   template argument deduction/substitution failed:
stiva.cpp:13:14: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
     if(op == 'push')

              ^
stiva.cpp:18:16: error: no match for 'operator==' (operand types are 'std::string {aka std::basic_string<char>}' and 'int')
     else if(op == 'pop')

                ^
stiva.cpp:18:16: note: candidates are:
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_pair.h:214:5: note: template<class _T1, class _T2> constexpr bool std::operator==(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)
     operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
     ^
/usr/include/c++/4.8/bits/stl_pair.h:214:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::pair<_T1, _T2>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:291:5: note: template<class _Iterator> bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
     operator==(const reverse_iterator<_Iterator>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:291:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::reverse_iterator<_Iterator>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:341:5: note: template<class _IteratorL, class _IteratorR> bool std::operator==(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)
     operator==(const reverse_iterator<_IteratorL>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:341:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::reverse_iterator<_Iterator>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:1031:5: note: template<class _IteratorL, class _IteratorR> bool std::operator==(const std::move_iterator<_Iterator>&, const std::move_iterator<_IteratorR>&)
     operator==(const move_iterator<_IteratorL>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:1031:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::move_iterator<_Iterator>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:1037:5: note: template<class _Iterator> bool std::operator==(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&)
     operator==(const move_iterator<_Iterator>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:1037:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::move_iterator<_Iterator>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/deque:61:0,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/allocator.h:128:5: note: template<class _T1, class _T2> bool std::operator==(const std::allocator<_Tp1>&, const std::allocator<_T2>&)
     operator==(const allocator<_T1>&, const allocator<_T2>&)
     ^
/usr/include/c++/4.8/bits/allocator.h:128:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::allocator<_Tp1>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/deque:61:0,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/allocator.h:133:5: note: template<class _Tp> bool std::operator==(const std::allocator<_Tp1>&, const std::allocator<_Tp1>&)
     operator==(const allocator<_Tp>&, const allocator<_Tp>&)
     ^
/usr/include/c++/4.8/bits/allocator.h:133:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::allocator<_Tp1>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_deque.h:247:5: note: template<class _Tp, class _Ref, class _Ptr> bool std::operator==(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _Ref, _Ptr>&)
     operator==(const _Deque_iterator<_Tp, _Ref, _Ptr>& __x,
     ^
/usr/include/c++/4.8/bits/stl_deque.h:247:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_deque.h:254:5: note: template<class _Tp, class _RefL, class _PtrL, class _RefR, class _PtrR> bool std::operator==(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _RefR, _PtrR>&)
     operator==(const _Deque_iterator<_Tp, _RefL, _PtrL>& __x,
     ^
/usr/include/c++/4.8/bits/stl_deque.h:254:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_deque.h:1957:5: note: template<class _Tp, class _Alloc> bool std::operator==(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&)
     operator==(const deque<_Tp, _Alloc>& __x,
     ^
/usr/include/c++/4.8/bits/stl_deque.h:1957:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::deque<_Tp, _Alloc>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/stack:61:0,
                 from stiva.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:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::stack<_Tp, _Seq>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/bits/char_traits.h:40:0,
                 from /usr/include/c++/4.8/string:40,
                 from stiva.cpp:2:
/usr/include/c++/4.8/bits/postypes.h:216:5: note: template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)
     operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
     ^
/usr/include/c++/4.8/bits/postypes.h:216:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::fpos<_StateT>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from stiva.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2486:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::basic_string<_CharT, _Traits, _Alloc>&, const std::basic_string<_CharT, _Traits, _Alloc>&)
     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2486:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   mismatched types 'const std::basic_string<_CharT, _Traits, _Alloc>' and 'int'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from stiva.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2493:5: note: template<class _CharT> typename __gnu_cxx::__enable_if<std::__is_char<_Tp>::__value, bool>::__type std::operator==(const std::basic_string<_CharT>&, const std::basic_string<_CharT>&)
     operator==(const basic_string<_CharT>& __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2493:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   mismatched types 'const std::basic_string<_CharT>' and 'int'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from stiva.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2507:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const _CharT*, const std::basic_string<_CharT, _Traits, _Alloc>&)
     operator==(const _CharT* __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2507:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   mismatched types 'const _CharT*' and 'std::basic_string<char>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from stiva.cpp:2:
/usr/include/c++/4.8/bits/basic_string.h:2519:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2519:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   mismatched types 'const _CharT*' and 'int'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/bits/locale_facets.h:48:0,
                 from /usr/include/c++/4.8/bits/basic_ios.h:37,
                 from /usr/include/c++/4.8/ios:44,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from stiva.cpp:3:
/usr/include/c++/4.8/bits/streambuf_iterator.h:204:5: note: template<class _CharT, class _Traits> bool std::operator==(const std::istreambuf_iterator<_CharT, _Traits>&, const std::istreambuf_iterator<_CharT, _Traits>&)
     operator==(const istreambuf_iterator<_CharT, _Traits>& __a,
     ^
/usr/include/c++/4.8/bits/streambuf_iterator.h:204:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const std::istreambuf_iterator<_CharT, _Traits>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/c++allocator.h:33:0,
                 from /usr/include/c++/4.8/bits/allocator.h:46,
                 from /usr/include/c++/4.8/deque:61,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/ext/new_allocator.h:139:5: note: template<class _Tp> bool __gnu_cxx::operator==(const __gnu_cxx::new_allocator<_Tp>&, const __gnu_cxx::new_allocator<_Tp>&)
     operator==(const new_allocator<_Tp>&, const new_allocator<_Tp>&)
     ^
/usr/include/c++/4.8/ext/new_allocator.h:139:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const __gnu_cxx::new_allocator<_Tp>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:811:5: note: 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++/4.8/bits/stl_iterator.h:811:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
     else if(op == 'pop')

                   ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/deque:60,
                 from /usr/include/c++/4.8/stack:60,
                 from stiva.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:805:5: note: 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++/4.8/bits/stl_iterator.h:805:5: note:   template argument deduction/substitution failed:
stiva.cpp:18:19: note:   'std::string {aka std::basic_string<char>}' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
     else if(op == 'pop')

                   ^

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 Stiva 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.