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Detalii evaluare #42702608

Rezumat problemă

#4304 ff

Se dă un graf neorientat. Să se determine un subgraf al său, cu număr cât mai mare de noduri și în care fiecare nod are gradul cel puțin 2.

CPPI Craiova - Concurs de antrenament 4-5 ianuarie 2023

Rezolvă

Detalii

Problema ff Operații I/O ff.in/ff.out
Limita timp 0.3 secunde Limita memorie Total: 64 MB / Stivă 8 MB
Id soluție #42702608 Utilizator Rotariu Dragos (RotariuDragos)
Fișier ff.cpp Dimensiune 918 B
Data încărcării 15 Martie 2023, 00:43 Scor / rezultat Eroare de compilare

Evaluare


Mesaj compilare

ff.cpp:9:31: error: conflicting declaration 'int v [100004]'
 int n,m,a[100004],cnt,v[100004];

                               ^
ff.cpp:7:13: error: 'v' has a previous declaration as 'std::vector<int> v [100004]'
 vector <int>v[100004];

             ^
ff.cpp: In function 'int main()':
ff.cpp:25:17: error: no match for 'operator=' (operand types are 'std::vector<int>' and 'int')
             v[i]=1;

                 ^
ff.cpp:25:17: note: candidates are:
In file included from /usr/include/c++/4.8/vector:69:0,
                 from ff.cpp:2:
/usr/include/c++/4.8/bits/vector.tcc:160:5: note: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]
     vector<_Tp, _Alloc>::
     ^
/usr/include/c++/4.8/bits/vector.tcc:160:5: note:   no known conversion for argument 1 from 'int' to 'const std::vector<int>&'
In file included from /usr/include/c++/4.8/vector:64:0,
                 from ff.cpp:2:
/usr/include/c++/4.8/bits/stl_vector.h:439:7: note: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = int; _Alloc = std::allocator<int>]
       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
       ^
/usr/include/c++/4.8/bits/stl_vector.h:439:7: note:   no known conversion for argument 1 from 'int' to 'std::vector<int>&&'
/usr/include/c++/4.8/bits/stl_vector.h:461:7: note: std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = int; _Alloc = std::allocator<int>]
       operator=(initializer_list<value_type> __l)
       ^
/usr/include/c++/4.8/bits/stl_vector.h:461:7: note:   no known conversion for argument 1 from 'int' to 'std::initializer_list<int>'
ff.cpp:39:44: error: no match for 'operator==' (operand types are 'std::vector<int>' and 'int')
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                            ^
ff.cpp:39:44: note: candidates are:
In file included from /usr/include/c++/4.8/iosfwd:40:0,
                 from /usr/include/c++/4.8/ios:38,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.cpp:1:
/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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::fpos<_StateT>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::pair<_T1, _T2>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::reverse_iterator<_Iterator>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::reverse_iterator<_Iterator>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::move_iterator<_Iterator>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::move_iterator<_Iterator>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/string:41:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.cpp:1:
/usr/include/c++/4.8/bits/allocator.h:128:5: note: template<class _T1, class _T2> bool std::operator==(const std::allocator<_CharT>&, 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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::allocator<_CharT>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/string:41:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.cpp:1:
/usr/include/c++/4.8/bits/allocator.h:133:5: note: template<class _Tp> bool std::operator==(const std::allocator<_CharT>&, const std::allocator<_CharT>&)
     operator==(const allocator<_Tp>&, const allocator<_Tp>&)
     ^
/usr/include/c++/4.8/bits/allocator.h:133:5: note:   template argument deduction/substitution failed:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::allocator<_CharT>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.cpp:1:
/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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::basic_string<_CharT, _Traits, _Alloc>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.cpp:1:
/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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::basic_string<_CharT>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.cpp:1:
/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:
ff.cpp:39:46: note:   mismatched types 'const _CharT*' and 'std::vector<int>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/string:52:0,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.cpp:1:
/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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::basic_string<_CharT, _Traits, _Alloc>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
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/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.cpp:1:
/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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::istreambuf_iterator<_CharT, _Traits>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/vector:64:0,
                 from ff.cpp:2:
/usr/include/c++/4.8/bits/stl_vector.h:1404:5: note: template<class _Tp, class _Alloc> bool std::operator==(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)
     operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
     ^
/usr/include/c++/4.8/bits/stl_vector.h:1404:5: note:   template argument deduction/substitution failed:
ff.cpp:39:46: note:   mismatched types 'const std::vector<_Tp, _Alloc>' and 'int'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/c++/4.8/queue:60,
                 from ff.cpp:3:
/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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/c++/4.8/queue:60,
                 from ff.cpp:3:
/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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/deque:64:0,
                 from /usr/include/c++/4.8/queue:60,
                 from ff.cpp:3:
/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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::deque<_Tp, _Alloc>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/queue:64:0,
                 from ff.cpp:3:
/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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const std::queue<_Tp, _Seq>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
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/string:41,
                 from /usr/include/c++/4.8/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8/bits/ios_base.h:41,
                 from /usr/include/c++/4.8/ios:42,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const __gnu_cxx::new_allocator<_Tp>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from ff.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:
ff.cpp:39:46: note:   'std::vector<int>' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
             if (a[v[x][0]]==1 && v[v[x][0]]==0)

                                              ^
ff.cpp:42:24: warning: value computed is not used [-Wunused-value]
                 v[x][0]==1;

                        ^

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 ff 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.