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Detalii evaluare #56830484
Rezumat problemă
#4748
PalindromicPaths
Se dă un arbore cu \(N\) noduri și \(N-1\) muchii etichetate cu o literă fiecare. Vom defini un drum \((x, y)\) ca fiind secvența de muchii care duc de la nodul \(x\) la nodul \(y\). De asemenea, vom considera drumurile \((x, y)\) si \((y, x)\) ca fiind același drum. Un drum poate fi palindromic dacă există o cale de a permuta toate literele parcurse in drumul respectiv în așa fel încât să formăm un drum palindromic.
Să se afle câte drumuri pot fi palindromice.
LeetCode
- Consola
-
{Moldovan Robert} (moldovan_robert_lol)
- dificilă
Detalii
| Problema | PalindromicPaths | Operații I/O |
 tastatură/ecran
|
|---|---|---|---|
| Limita timp | 0.5 secunde | Limita memorie |
Total: 512 MB
/
Stivă 8 MB
|
| Id soluție | #56830484 | Utilizator |
-Ilea Bogdan- (Ilea_Bogdan)
|
| Fișier | palindromicpaths.cpp | Dimensiune | 1.51 KB |
| Data încărcării | 07 Martie 2025, 09:41 | Scor / rezultat | Eroare de compilare |
Evaluare
Mesaj compilare
In file included from /usr/include/c++/4.8/bits/hashtable.h:35:0, from /usr/include/c++/4.8/unordered_map:47, from palindromicpaths.cpp:6: /usr/include/c++/4.8/bits/hashtable_policy.h: In instantiation of 'struct std::__detail::_Hash_code_base<std::pair<int, int>, std::pair<const std::pair<int, int>, bool>, std::__detail::_Select1st, std::hash<std::pair<int, int> >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, true>': /usr/include/c++/4.8/bits/hashtable_policy.h:1402:10: required from 'struct std::__detail::_Hashtable_base<std::pair<int, int>, std::pair<const std::pair<int, int>, bool>, std::__detail::_Select1st, std::equal_to<std::pair<int, int> >, std::hash<std::pair<int, int> >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Hashtable_traits<true, false, true> >' /usr/include/c++/4.8/bits/hashtable.h:174:11: required from 'class std::_Hashtable<std::pair<int, int>, std::pair<const std::pair<int, int>, bool>, std::allocator<std::pair<const std::pair<int, int>, bool> >, std::__detail::_Select1st, std::equal_to<std::pair<int, int> >, std::hash<std::pair<int, int> >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >' /usr/include/c++/4.8/bits/unordered_map.h:100:18: required from 'class std::unordered_map<std::pair<int, int>, bool>' palindromicpaths.cpp:10:36: required from here /usr/include/c++/4.8/bits/hashtable_policy.h:1070:12: error: invalid use of incomplete type 'struct std::hash<std::pair<int, int> >' struct _Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, ^ In file included from /usr/include/c++/4.8/bits/basic_string.h:3033:0, from /usr/include/c++/4.8/string:52, 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/ostream:38, from /usr/include/c++/4.8/iostream:39, from palindromicpaths.cpp:1: /usr/include/c++/4.8/bits/functional_hash.h:58:12: error: declaration of 'struct std::hash<std::pair<int, int> >' struct hash; ^ In file included from /usr/include/c++/4.8/bits/hashtable.h:35:0, from /usr/include/c++/4.8/unordered_map:47, from palindromicpaths.cpp:6: /usr/include/c++/4.8/bits/hashtable_policy.h:1070:12: error: invalid use of incomplete type 'struct std::hash<std::pair<int, int> >' struct _Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, ^ In file included from /usr/include/c++/4.8/bits/basic_string.h:3033:0, from /usr/include/c++/4.8/string:52, 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/ostream:38, from /usr/include/c++/4.8/iostream:39, from palindromicpaths.cpp:1: /usr/include/c++/4.8/bits/functional_hash.h:58:12: error: declaration of 'struct std::hash<std::pair<int, int> >' struct hash; ^ In file included from /usr/include/c++/4.8/bits/hashtable.h:35:0, from /usr/include/c++/4.8/unordered_map:47, from palindromicpaths.cpp:6: /usr/include/c++/4.8/bits/hashtable_policy.h:1082:53: error: invalid use of incomplete type 'struct std::hash<std::pair<int, int> >' using __ebo_h1 = _Hashtable_ebo_helper<1, _H1>; ^ In file included from /usr/include/c++/4.8/bits/basic_string.h:3033:0, from /usr/include/c++/4.8/string:52, 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/ostream:38, from /usr/include/c++/4.8/iostream:39, from palindromicpaths.cpp:1: /usr/include/c++/4.8/bits/functional_hash.h:58:12: error: declaration of 'struct std::hash<std::pair<int, int> >' struct hash; ^ In file included from /usr/include/c++/4.8/bits/hashtable.h:35:0, from /usr/include/c++/4.8/unordered_map:47, from palindromicpaths.cpp:6: /usr/include/c++/4.8/bits/hashtable_policy.h:1082:53: error: invalid use of incomplete type 'struct std::hash<std::pair<int, int> >' using __ebo_h1 = _Hashtable_ebo_helper<1, _H1>; ^ In file included from /usr/include/c++/4.8/bits/basic_string.h:3033:0, from /usr/include/c++/4.8/string:52, 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/ostream:38, from /usr/include/c++/4.8/iostream:39, from palindromicpaths.cpp:1: /usr/include/c++/4.8/bits/functional_hash.h:58:12: error: declaration of 'struct std::hash<std::pair<int, int> >' struct hash; ^ palindromicpaths.cpp: In constructor 'std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::unordered_map(std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::size_type, const hasher&, const key_equal&, const allocator_type&) [with _Key = std::pair<int, int>; _Tp = bool; _Hash = std::hash<std::pair<int, int> >; _Pred = std::equal_to<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, bool> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::size_type = unsigned int; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hasher = std::hash<std::pair<int, int> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::key_equal = std::equal_to<std::pair<int, int> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::allocator_type = std::allocator<std::pair<const std::pair<int, int>, bool> >]': palindromicpaths.cpp:10:36: error: invalid use of incomplete type 'std::unordered_map<std::pair<int, int>, bool>::hasher {aka struct std::hash<std::pair<int, int> >}' unordered_map<pair<int, int>, bool>ispal; ^ In file included from /usr/include/c++/4.8/bits/basic_string.h:3033:0, from /usr/include/c++/4.8/string:52, 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/ostream:38, from /usr/include/c++/4.8/iostream:39, from palindromicpaths.cpp:1: /usr/include/c++/4.8/bits/functional_hash.h:58:12: error: declaration of 'std::unordered_map<std::pair<int, int>, bool>::hasher {aka struct std::hash<std::pair<int, int> >}' struct hash; ^ palindromicpaths.cpp:10:36: note: when instantiating default argument for call to std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::unordered_map(std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::size_type, const hasher&, const key_equal&, const allocator_type&) [with _Key = std::pair<int, int>; _Tp = bool; _Hash = std::hash<std::pair<int, int> >; _Pred = std::equal_to<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, bool> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::size_type = unsigned int; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hasher = std::hash<std::pair<int, int> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::key_equal = std::equal_to<std::pair<int, int> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::allocator_type = std::allocator<std::pair<const std::pair<int, int>, bool> >] unordered_map<pair<int, int>, bool>ispal; ^ In file included from /usr/include/c++/4.8/bits/hashtable.h:35:0, from /usr/include/c++/4.8/unordered_map:47, from palindromicpaths.cpp:6: /usr/include/c++/4.8/bits/hashtable_policy.h: In instantiation of 'std::__detail::_Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, std::__detail::_Default_ranged_hash, true>::__hash_code std::__detail::_Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, std::__detail::_Default_ranged_hash, true>::_M_hash_code(const _Key&) const [with _Key = std::pair<int, int>; _Value = std::pair<const std::pair<int, int>, bool>; _ExtractKey = std::__detail::_Select1st; _H1 = std::hash<std::pair<int, int> >; _H2 = std::__detail::_Mod_range_hashing; std::__detail::_Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, std::__detail::_Default_ranged_hash, true>::__hash_code = unsigned int]': /usr/include/c++/4.8/bits/hashtable.h:1057:50: required from 'std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::size_type std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::count(const key_type&) const [with _Key = std::pair<int, int>; _Value = std::pair<const std::pair<int, int>, bool>; _Alloc = std::allocator<std::pair<const std::pair<int, int>, bool> >; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<std::pair<int, int> >; _H1 = std::hash<std::pair<int, int> >; _H2 = std::__detail::_Mod_range_hashing; _Hash = std::__detail::_Default_ranged_hash; _RehashPolicy = std::__detail::_Prime_rehash_policy; _Traits = std::__detail::_Hashtable_traits<true, false, true>; std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::size_type = unsigned int; std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::key_type = std::pair<int, int>]' /usr/include/c++/4.8/bits/unordered_map.h:561:30: required from 'std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::size_type std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::count(const key_type&) const [with _Key = std::pair<int, int>; _Tp = bool; _Hash = std::hash<std::pair<int, int> >; _Pred = std::equal_to<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, bool> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::size_type = unsigned int; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::key_type = std::pair<int, int>]' palindromicpaths.cpp:57:35: required from here /usr/include/c++/4.8/bits/hashtable_policy.h:1103:22: error: no match for call to '(const std::hash<std::pair<int, int> >) (const std::pair<int, int>&)' { return _M_h1()(__k); } ^ /usr/include/c++/4.8/bits/hashtable_policy.h: In instantiation of 'std::__detail::_Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, std::__detail::_Default_ranged_hash, true>::_Hash_code_base(const _ExtractKey&, const _H1&, const _H2&, const std::__detail::_Default_ranged_hash&) [with _Key = std::pair<int, int>; _Value = std::pair<const std::pair<int, int>, bool>; _ExtractKey = std::__detail::_Select1st; _H1 = std::hash<std::pair<int, int> >; _H2 = std::__detail::_Mod_range_hashing]': /usr/include/c++/4.8/bits/hashtable_policy.h:1463:65: required from 'std::__detail::_Hashtable_base<_Key, _Value, _ExtractKey, _Equal, _H1, _H2, _Hash, _Traits>::_Hashtable_base(const _ExtractKey&, const _H1&, const _H2&, const _Hash&, const _Equal&) [with _Key = std::pair<int, int>; _Value = std::pair<const std::pair<int, int>, bool>; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<std::pair<int, int> >; _H1 = std::hash<std::pair<int, int> >; _H2 = std::__detail::_Mod_range_hashing; _Hash = std::__detail::_Default_ranged_hash; _Traits = std::__detail::_Hashtable_traits<true, false, true>]' /usr/include/c++/4.8/bits/hashtable.h:828:24: required from 'std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::_Hashtable(std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::size_type, const _H1&, const _H2&, const _Hash&, const _Equal&, const _ExtractKey&, const allocator_type&) [with _Key = std::pair<int, int>; _Value = std::pair<const std::pair<int, int>, bool>; _Alloc = std::allocator<std::pair<const std::pair<int, int>, bool> >; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<std::pair<int, int> >; _H1 = std::hash<std::pair<int, int> >; _H2 = std::__detail::_Mod_range_hashing; _Hash = std::__detail::_Default_ranged_hash; _RehashPolicy = std::__detail::_Prime_rehash_policy; _Traits = std::__detail::_Hashtable_traits<true, false, true>; std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::size_type = unsigned int; std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::allocator_type = std::allocator<std::pair<const std::pair<int, int>, bool> >]' /usr/include/c++/4.8/bits/hashtable.h:397:26: required from 'std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::_Hashtable(std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::size_type, const _H1&, const key_equal&, const allocator_type&) [with _Key = std::pair<int, int>; _Value = std::pair<const std::pair<int, int>, bool>; _Alloc = std::allocator<std::pair<const std::pair<int, int>, bool> >; _ExtractKey = std::__detail::_Select1st; _Equal = std::equal_to<std::pair<int, int> >; _H1 = std::hash<std::pair<int, int> >; _H2 = std::__detail::_Mod_range_hashing; _Hash = std::__detail::_Default_ranged_hash; _RehashPolicy = std::__detail::_Prime_rehash_policy; _Traits = std::__detail::_Hashtable_traits<true, false, true>; std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::size_type = unsigned int; std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::key_equal = std::equal_to<std::pair<int, int> >; std::_Hashtable<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash, _RehashPolicy, _Traits>::allocator_type = std::allocator<std::pair<const std::pair<int, int>, bool> >]' /usr/include/c++/4.8/bits/unordered_map.h:142:35: required from 'std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::unordered_map(std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::size_type, const hasher&, const key_equal&, const allocator_type&) [with _Key = std::pair<int, int>; _Tp = bool; _Hash = std::hash<std::pair<int, int> >; _Pred = std::equal_to<std::pair<int, int> >; _Alloc = std::allocator<std::pair<const std::pair<int, int>, bool> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::size_type = unsigned int; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::hasher = std::hash<std::pair<int, int> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::key_equal = std::equal_to<std::pair<int, int> >; std::unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>::allocator_type = std::allocator<std::pair<const std::pair<int, int>, bool> >]' palindromicpaths.cpp:10:36: required from here /usr/include/c++/4.8/bits/hashtable_policy.h:1099:63: error: invalid use of incomplete type 'struct std::hash<std::pair<int, int> >' : __ebo_extract_key(__ex), __ebo_h1(__h1), __ebo_h2(__h2) { } ^ In file included from /usr/include/c++/4.8/bits/basic_string.h:3033:0, from /usr/include/c++/4.8/string:52, 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/ostream:38, from /usr/include/c++/4.8/iostream:39, from palindromicpaths.cpp:1: /usr/include/c++/4.8/bits/functional_hash.h:58:12: error: declaration of 'struct std::hash<std::pair<int, int> >' struct hash; ^ In file included from /usr/include/c++/4.8/bits/hashtable.h:35:0, from /usr/include/c++/4.8/unordered_map:47, from palindromicpaths.cpp:6: /usr/include/c++/4.8/bits/hashtable_policy.h:1099:63: error: invalid use of incomplete type 'struct std::hash<std::pair<int, int> >' : __ebo_extract_key(__ex), __ebo_h1(__h1), __ebo_h2(__h2) { } ^ In file included from /usr/include/c++/4.8/bits/basic_string.h:3033:0, from /usr/include/c++/4.8/string:52, 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/ostream:38, from /usr/include/c++/4.8/iostream:39, from palindromicpaths.cpp:1: /usr/include/c++/4.8/bits/functional_hash.h:58:12: error: declaration of 'struct std::hash<std::pair<int, int> >' struct hash; ^
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 PalindromicPaths 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.