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Detalii evaluare #29660067

Rezumat problemă

#589 Roy-Floyd

Se dă un graf orientat ponderat cu n noduri și m arce – în care fiecare arc are asociat un cost, număr natural strict pozitiv. Folosind algoritmul Roy-Floyd, construiți matricea costurilor minime.

Rezolvă

Detalii

Problema Roy-Floyd Operații I/O roy-floyd.in/roy-floyd.out
Limita timp 0.1 secunde Limita memorie Total: 64 MB / Stivă 8 MB
Id soluție #29660067 Utilizator secuiu stefan (stefan1233)
Fișier roy-floyd.cpp Dimensiune 901 B
Data încărcării 14 Mai 2021, 10:35 Scor / rezultat Eroare de compilare

Evaluare


Mesaj compilare

roy-floyd.cpp: In function 'int main()':
roy-floyd.cpp:22:5: error: reference to 'cin' is ambiguous
     cin >> n >> m;

     ^
roy-floyd.cpp:5:10: note: candidates are: std::ifstream cin
 ifstream cin("roy-floyd.in");

          ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:74:0,
                 from roy-floyd.cpp:1:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
roy-floyd.cpp:26:35: error: reference to 'max' is ambiguous
             if (i != j) v[i][j] = max;

                                   ^
roy-floyd.cpp:8:11: note: candidates are: const int max
 const int max = 0x3f3f3f3f;

           ^
In file included from /usr/include/c++/4.8/algorithm:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64,
                 from roy-floyd.cpp:1:
/usr/include/c++/4.8/bits/stl_algo.h:4236:5: note:                 template<class _Tp, class _Compare> _Tp std::max(std::initializer_list<_Tp>, _Compare)
     max(initializer_list<_Tp> __l, _Compare __comp)
     ^
/usr/include/c++/4.8/bits/stl_algo.h:4231:5: note:                 template<class _Tp> _Tp std::max(std::initializer_list<_Tp>)
     max(initializer_list<_Tp> __l)
     ^
In file included from /usr/include/c++/4.8/bits/char_traits.h:39:0,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from roy-floyd.cpp:1:
/usr/include/c++/4.8/bits/stl_algobase.h:260:5: note:                 template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^
/usr/include/c++/4.8/bits/stl_algobase.h:216:5: note:                 template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)
     max(const _Tp& __a, const _Tp& __b)
     ^
roy-floyd.cpp:30:9: error: reference to 'cin' is ambiguous
         cin >> x >> y >> w;

         ^
roy-floyd.cpp:5:10: note: candidates are: std::ifstream cin
 ifstream cin("roy-floyd.in");

          ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:74:0,
                 from roy-floyd.cpp:1:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
roy-floyd.cpp:39:27: error: reference to 'max' is ambiguous
             if(v[i][j] != max)cout << v[i][j] << ' ';

                           ^
roy-floyd.cpp:8:11: note: candidates are: const int max
 const int max = 0x3f3f3f3f;

           ^
In file included from /usr/include/c++/4.8/algorithm:62:0,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:64,
                 from roy-floyd.cpp:1:
/usr/include/c++/4.8/bits/stl_algo.h:4236:5: note:                 template<class _Tp, class _Compare> _Tp std::max(std::initializer_list<_Tp>, _Compare)
     max(initializer_list<_Tp> __l, _Compare __comp)
     ^
/usr/include/c++/4.8/bits/stl_algo.h:4231:5: note:                 template<class _Tp> _Tp std::max(std::initializer_list<_Tp>)
     max(initializer_list<_Tp> __l)
     ^
In file included from /usr/include/c++/4.8/bits/char_traits.h:39:0,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/sstream:38,
                 from /usr/include/c++/4.8/complex:45,
                 from /usr/include/c++/4.8/ccomplex:38,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:52,
                 from roy-floyd.cpp:1:
/usr/include/c++/4.8/bits/stl_algobase.h:260:5: note:                 template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)
     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
     ^
/usr/include/c++/4.8/bits/stl_algobase.h:216:5: note:                 template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)
     max(const _Tp& __a, const _Tp& __b)
     ^
roy-floyd.cpp:39:31: error: reference to 'cout' is ambiguous
             if(v[i][j] != max)cout << v[i][j] << ' ';

                               ^
roy-floyd.cpp:6:10: note: candidates are: std::ofstream cout
 ofstream cout("roy-floyd.out");

          ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:74:0,
                 from roy-floyd.cpp:1:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
roy-floyd.cpp:40:18: error: reference to 'cout' is ambiguous
             else cout << "-1 ";

                  ^
roy-floyd.cpp:6:10: note: candidates are: std::ofstream cout
 ofstream cout("roy-floyd.out");

          ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:74:0,
                 from roy-floyd.cpp:1:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
roy-floyd.cpp:41:9: error: reference to 'cout' is ambiguous
         cout << '\n';

         ^
roy-floyd.cpp:6:10: note: candidates are: std::ofstream cout
 ofstream cout("roy-floyd.out");

          ^
In file included from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:74:0,
                 from roy-floyd.cpp:1:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^

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 Roy-Floyd 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.