Rezumat problemă

esteArbore

#4204

Verificați dacă un graf este arbore sau nu.

Fișiere Popa Daniel (popadaniel72) Daniel Popa ușoară

Clasa 11 Teoria Grafurilor Parcurgerea grafurilor neorientate Grafuri arbori

Rezolvă

Detalii

Problema	esteArbore	Operații I/O	estearbore.in/estearbore.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#63577253	Utilizator	Pop Matei (pop_matei_darius)
Fișier	estearbore.cpp	Dimensiune	989 B
Data încărcării	10 Martie 2026, 10:22	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

estearbore.cpp:5:13: error: variable 'std::ifstream cin' has initializer but incomplete type
 ifstream cin("estearbore.in");

             ^
estearbore.cpp:6:14: error: variable 'std::ofstream cout' has initializer but incomplete type
 ofstream cout("estearbore.out");

              ^
estearbore.cpp: In function 'int main()':
estearbore.cpp:13:5: error: reference to 'cin' is ambiguous
     cin>>n;

     ^
estearbore.cpp:5:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("estearbore.in");

          ^
In file included from estearbore.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
estearbore.cpp:16:11: error: reference to 'cin' is ambiguous
     while(cin>>x>>y)

           ^
estearbore.cpp:5:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("estearbore.in");

          ^
In file included from estearbore.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
estearbore.cpp:23:17: error: reference to 'cout' is ambiguous
                 cout<<"NU";

                 ^
estearbore.cpp:6:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("estearbore.out");

          ^
In file included from estearbore.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
estearbore.cpp:31:38: error: expected primary-expression before ')' token
                 for(int i=1;i<=n;i+++)

                                      ^
estearbore.cpp:46:9: error: reference to 'cout' is ambiguous
         cout<<"NU";

         ^
estearbore.cpp:6:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("estearbore.out");

          ^
In file included from estearbore.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
estearbore.cpp:49:5: error: reference to 'cout' is ambiguous
     cout<<"DA";

     ^
estearbore.cpp:6:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("estearbore.out");

          ^
In file included from estearbore.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^

Cum funcționează evaluarea?