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Detalii evaluare #63263680

Rezumat problemă

Kruskal
#592

Se dă un graf neorientat ponderat conex cu n vârfuri și m muchii – în care fiecare muchie are asociat un cost, număr natural strict pozitiv. Folosind algoritmul lui Kruskal, determinați un arbore parțial de cost minim.

Fișiere Candale Silviu (silviu) ușoară
Clasa 11 Teoria Grafurilor Grafuri cu costuri Algoritmul lui Kruskal
Rezolvă

Detalii

Problema Kruskal Operații I/O kruskal.in/kruskal.out
Limita timp 0.1 secunde Limita memorie Total: 64 MB / Stivă 8 MB
Id soluție #63263680 Utilizator Colto Narcis (rupTastatura)
Fișier kruskal.cpp Dimensiune 1.96 KB
Data încărcării 24 Februarie 2026, 09:20 Scor/rezultat Eroare de compilare

Evaluare

Mesaj compilare

kruskal.cpp:11:1: error: expected ',' or ';' before 'struct'
 struct Muchie {

 ^
kruskal.cpp:20:20: error: 'Muchie' was not declared in this scope
 bool comparaMuchii(Muchie a, Muchie b) {

                    ^
kruskal.cpp:20:30: error: 'Muchie' was not declared in this scope
 bool comparaMuchii(Muchie a, Muchie b) {

                              ^
kruskal.cpp:20:38: error: expression list treated as compound expression in initializer [-fpermissive]
 bool comparaMuchii(Muchie a, Muchie b) {

                                      ^
kruskal.cpp:20:40: error: expected ',' or ';' before '{' token
 bool comparaMuchii(Muchie a, Muchie b) {

                                        ^
kruskal.cpp: In function 'int main()':
kruskal.cpp:53:12: error: 'Muchie' was not declared in this scope
     vector<Muchie> muchii(m);

            ^
kruskal.cpp:53:18: error: template argument 1 is invalid
     vector<Muchie> muchii(m);

                  ^
kruskal.cpp:53:18: error: template argument 2 is invalid
kruskal.cpp:53:26: error: invalid type in declaration before '(' token
     vector<Muchie> muchii(m);

                          ^
kruskal.cpp:55:24: error: invalid types 'int[int]' for array subscript
         fin >> muchii[i].u >> muchii[i].v >> muchii[i].cost;

                        ^
kruskal.cpp:55:39: error: invalid types 'int[int]' for array subscript
         fin >> muchii[i].u >> muchii[i].v >> muchii[i].cost;

                                       ^
kruskal.cpp:55:54: error: invalid types 'int[int]' for array subscript
         fin >> muchii[i].u >> muchii[i].v >> muchii[i].cost;

                                                      ^
kruskal.cpp:59:17: error: request for member 'begin' in 'muchii', which is of non-class type 'int'
     sort(muchii.begin(), muchii.end(), comparaMuchii);

                 ^
kruskal.cpp:59:33: error: request for member 'end' in 'muchii', which is of non-class type 'int'
     sort(muchii.begin(), muchii.end(), comparaMuchii);

                                 ^
kruskal.cpp:69:12: error: the value of 'Muchie' is not usable in a constant expression
     vector<Muchie> apm;

            ^
kruskal.cpp:53:12: note: 'Muchie' was not declared 'constexpr'
     vector<Muchie> muchii(m);

            ^
kruskal.cpp:69:18: error: type/value mismatch at argument 1 in template parameter list for 'template<class _Tp, class _Alloc> class std::vector'
     vector<Muchie> apm;

                  ^
kruskal.cpp:69:18: error:   expected a type, got 'Muchie'
kruskal.cpp:69:18: error: template argument 2 is invalid
kruskal.cpp:69:23: error: invalid type in declaration before ';' token
     vector<Muchie> apm;

                       ^
kruskal.cpp:73:28: error: invalid types 'int[int]' for array subscript
         if (uneste(muchii[i].u, muchii[i].v)) {

                            ^
kruskal.cpp:73:41: error: invalid types 'int[int]' for array subscript
         if (uneste(muchii[i].u, muchii[i].v)) {

                                         ^
kruskal.cpp:74:34: error: invalid types 'int[int]' for array subscript
             costTotal += muchii[i].cost;

                                  ^
kruskal.cpp:75:17: error: request for member 'push_back' in 'apm', which is of non-class type 'int'
             apm.push_back(muchii[i]);

                 ^
kruskal.cpp:75:35: error: invalid types 'int[int]' for array subscript
             apm.push_back(muchii[i]);

                                   ^
kruskal.cpp:82:26: error: no matching function for call to 'begin(int&)'
     for (const auto& e : apm) {

                          ^
kruskal.cpp:82:26: note: candidates are:
In file included from /usr/include/c++/4.8/bits/basic_string.h:42:0,
                 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/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from kruskal.cpp:1:
/usr/include/c++/4.8/initializer_list:89:5: note: template<class _Tp> constexpr const _Tp* std::begin(std::initializer_list<_Tp>)
     begin(initializer_list<_Tp> __ils) noexcept
     ^
/usr/include/c++/4.8/initializer_list:89:5: note:   template argument deduction/substitution failed:
kruskal.cpp:82:26: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
     for (const auto& e : apm) {

                          ^
In file included from /usr/include/c++/4.8/string:51:0,
                 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 kruskal.cpp:1:
/usr/include/c++/4.8/bits/range_access.h:87:5: note: template<class _Tp, unsigned int _Nm> _Tp* std::begin(_Tp (&)[_Nm])
     begin(_Tp (&__arr)[_Nm])
     ^
/usr/include/c++/4.8/bits/range_access.h:87:5: note:   template argument deduction/substitution failed:
kruskal.cpp:82:26: note:   mismatched types '_Tp [_Nm]' and 'int'
     for (const auto& e : apm) {

                          ^
In file included from /usr/include/c++/4.8/string:51:0,
                 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 kruskal.cpp:1:
/usr/include/c++/4.8/bits/range_access.h:58:5: note: template<class _Container> decltype (__cont.begin()) std::begin(const _Container&)
     begin(const _Container& __cont) -> decltype(__cont.begin())
     ^
/usr/include/c++/4.8/bits/range_access.h:58:5: note:   template argument deduction/substitution failed:
/usr/include/c++/4.8/bits/range_access.h: In substitution of 'template<class _Container> decltype (__cont.begin()) std::begin(const _Container&) [with _Container = int]':
kruskal.cpp:82:26:   required from here
/usr/include/c++/4.8/bits/range_access.h:58:5: error: request for member 'begin' in '__cont', which is of non-class type 'const int'
/usr/include/c++/4.8/bits/range_access.h:48:5: note: template<class _Container> decltype (__cont.begin()) std::begin(_Container&)
     begin(_Container& __cont) -> decltype(__cont.begin())
     ^
/usr/include/c++/4.8/bits/range_access.h:48:5: note:   template argument deduction/substitution failed:
/usr/include/c++/4.8/bits/range_access.h: In substitution of 'template<class _Container> decltype (__cont.begin()) std::begin(_Container&) [with _Container = int]':
kruskal.cpp:82:26:   required from here
/usr/include/c++/4.8/bits/range_access.h:48:5: error: request for member 'begin' in '__cont', which is of non-class type 'int'
kruskal.cpp:82:26: error: no matching function for call to 'end(int&)'
     for (const auto& e : apm) {

                          ^
kruskal.cpp:82:26: note: candidates are:
In file included from /usr/include/c++/4.8/bits/basic_string.h:42:0,
                 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/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from kruskal.cpp:1:
/usr/include/c++/4.8/initializer_list:99:5: note: template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)
     end(initializer_list<_Tp> __ils) noexcept
     ^
/usr/include/c++/4.8/initializer_list:99:5: note:   template argument deduction/substitution failed:
kruskal.cpp:82:26: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
     for (const auto& e : apm) {

                          ^
In file included from /usr/include/c++/4.8/string:51:0,
                 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 kruskal.cpp:1:
/usr/include/c++/4.8/bits/range_access.h:97:5: note: template<class _Tp, unsigned int _Nm> _Tp* std::end(_Tp (&)[_Nm])
     end(_Tp (&__arr)[_Nm])
     ^
/usr/include/c++/4.8/bits/range_access.h:97:5: note:   template argument deduction/substitution failed:
kruskal.cpp:82:26: note:   mismatched types '_Tp [_Nm]' and 'int'
     for (const auto& e : apm) {

                          ^
In file included from /usr/include/c++/4.8/string:51:0,
                 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 kruskal.cpp:1:
/usr/include/c++/4.8/bits/range_access.h:78:5: note: template<class _Container> decltype (__cont.end()) std::end(const _Container&)
     end(const _Container& __cont) -> decltype(__cont.end())
     ^
/usr/include/c++/4.8/bits/range_access.h:78:5: note:   template argument deduction/substitution failed:
/usr/include/c++/4.8/bits/range_access.h: In substitution of 'template<class _Container> decltype (__cont.end()) std::end(const _Container&) [with _Container = int]':
kruskal.cpp:82:26:   required from here
/usr/include/c++/4.8/bits/range_access.h:78:5: error: request for member 'end' in '__cont', which is of non-class type 'const int'
/usr/include/c++/4.8/bits/range_access.h:68:5: note: template<class _Container> decltype (__cont.end()) std::end(_Container&)
     end(_Container& __cont) -> decltype(__cont.end())
     ^
/usr/include/c++/4.8/bits/range_access.h:68:5: note:   template argument deduction/substitution failed:
/usr/include/c++/4.8/bits/range_access.h: In substitution of 'template<class _Container> decltype (__cont.end()) std::end(_Container&) [with _Container = int]':
kruskal.cpp:82:26:   required from here
/usr/include/c++/4.8/bits/range_access.h:68:5: error: request for member 'end' in '__cont', which is of non-class type 'int'

Cum funcționează evaluarea?

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  • 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 Kruskal 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!