#3235
entries
Se consideră un graf care inițial este format din P
noduri izolate, etichetate de la 1
la P
. Se mai consideră N
intrări, unde intrare poate însemna:
I + J
, cu semnificația că în graf se adaugă muchia care unește nodurile I
și J
(dacă I
și J
erau deja unite în acel moment, nu se întreprinde nici o acțiune);I ? J
, adică se întreabă dacă în acel moment I
și J
sunt în aceeași componentă conexă.Se pleacă deci de la un graf inițial format din noduri izolate, care pe parcurs se “unifică”. Tot pe parcurs sunteți întrebat dacă anumite perechi de noduri sunt sau nu în aceeași componentă conexă. Scrieți un program care să răspundă la întrebările din fișierul de intrare.
ONI 2001, clasele XI-XII
Problema | entries | Operații I/O |
entries.in /entries.out
|
---|---|---|---|
Limita timp | 0.1 secunde | Limita memorie |
Total: 4 MB
/
Stivă 1 MB
|
Id soluție | #20016338 | Utilizator | |
Fișier | entries.cpp | Dimensiune | 902 B |
Data încărcării | 15 Ianuarie 2020, 20:05 | Scor / rezultat | Eroare de compilare |
entries.cpp: In function 'int Swap(int)': entries.cpp:35:13: error: no match for 'operator==' (operand types are 'std::map<int, int>' and 'int') if(M[x] == 0) ^ entries.cpp:35:13: 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::fpos<_StateT>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::pair<_T1, _T2>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::reverse_iterator<_Iterator>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::reverse_iterator<_Iterator>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::move_iterator<_Iterator>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::move_iterator<_Iterator>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::allocator<_CharT>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::allocator<_CharT>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::basic_string<_CharT, _Traits, _Alloc>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::basic_string<_CharT>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: mismatched types 'const _CharT*' and 'std::map<int, int>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::basic_string<_CharT, _Traits, _Alloc>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::istreambuf_iterator<_CharT, _Traits>' if(M[x] == 0) ^ In file included from /usr/include/c++/4.8/map:60:0, from entries.cpp:3: /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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::_Rb_tree_iterator<_Tp>' if(M[x] == 0) ^ In file included from /usr/include/c++/4.8/map:60:0, from entries.cpp:3: /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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>' if(M[x] == 0) ^ In file included from /usr/include/c++/4.8/tuple:39:0, from /usr/include/c++/4.8/bits/stl_map.h:63, from /usr/include/c++/4.8/map:61, from entries.cpp:3: /usr/include/c++/4.8/array:228:5: note: template<class _Tp, unsigned int _Nm> bool std::operator==(const std::array<_Tp, _Nm>&, const std::array<_Tp, _Nm>&) operator==(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two) ^ /usr/include/c++/4.8/array:228:5: note: template argument deduction/substitution failed: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::array<_Tp, _Nm>' if(M[x] == 0) ^ In file included from /usr/include/c++/4.8/bits/stl_map.h:63:0, from /usr/include/c++/4.8/map:61, from entries.cpp:3: /usr/include/c++/4.8/tuple:813:5: note: template<class ... _TElements, class ... _UElements> constexpr bool std::operator==(const std::tuple<_Args1 ...>&, const std::tuple<_Args2 ...>&) operator==(const tuple<_TElements...>& __t, ^ /usr/include/c++/4.8/tuple:813:5: note: template argument deduction/substitution failed: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::tuple<_Args1 ...>' if(M[x] == 0) ^ In file included from /usr/include/c++/4.8/map:61:0, from entries.cpp:3: /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: entries.cpp:35:16: note: mismatched types 'const std::map<_Key, _Tp, _Compare, _Alloc>' and 'int' if(M[x] == 0) ^ In file included from /usr/include/c++/4.8/map:62:0, from entries.cpp:3: /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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const std::multimap<_Key, _Tp, _Compare, _Alloc>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const __gnu_cxx::new_allocator<_Tp>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>' if(M[x] == 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 entries.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: entries.cpp:35:16: note: 'std::map<int, int>' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>' if(M[x] == 0) ^ entries.cpp:36:14: error: no match for 'operator=' (operand types are 'std::map<int, int>' and 'int') M[x] = ++cnt; ^ entries.cpp:36:14: note: candidates are: In file included from /usr/include/c++/4.8/map:61:0, from entries.cpp:3: /usr/include/c++/4.8/bits/stl_map.h:264:7: note: std::map<_Key, _Tp, _Compare, _Alloc>& std::map<_Key, _Tp, _Compare, _Alloc>::operator=(const std::map<_Key, _Tp, _Compare, _Alloc>&) [with _Key = int; _Tp = int; _Compare = std::less<int>; _Alloc = std::allocator<std::pair<const int, int> >] operator=(const map& __x) ^ /usr/include/c++/4.8/bits/stl_map.h:264:7: note: no known conversion for argument 1 from 'int' to 'const std::map<int, int>&' /usr/include/c++/4.8/bits/stl_map.h:279:7: note: std::map<_Key, _Tp, _Compare, _Alloc>& std::map<_Key, _Tp, _Compare, _Alloc>::operator=(std::map<_Key, _Tp, _Compare, _Alloc>&&) [with _Key = int; _Tp = int; _Compare = std::less<int>; _Alloc = std::allocator<std::pair<const int, int> >] operator=(map&& __x) ^ /usr/include/c++/4.8/bits/stl_map.h:279:7: note: no known conversion for argument 1 from 'int' to 'std::map<int, int>&&' /usr/include/c++/4.8/bits/stl_map.h:300:7: note: std::map<_Key, _Tp, _Compare, _Alloc>& std::map<_Key, _Tp, _Compare, _Alloc>::operator=(std::initializer_list<std::pair<const _Key, _Tp> >) [with _Key = int; _Tp = int; _Compare = std::less<int>; _Alloc = std::allocator<std::pair<const int, int> >] operator=(initializer_list<value_type> __l) ^ /usr/include/c++/4.8/bits/stl_map.h:300:7: note: no known conversion for argument 1 from 'int' to 'std::initializer_list<std::pair<const int, int> >' entries.cpp:37:15: error: cannot convert 'std::map<int, int>' to 'int' in return return M[x]; ^ entries.cpp:38:1: warning: control reaches end of non-void function [-Wreturn-type] } ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema entries face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:
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.