Rezumat problemă

ListaVecini

#414

Se dă lista muchiilor unui graf neorientat. Să se afișeze, pentru fiecare vârf al grafului, lista vecinilor săi.

Fișiere Candale Silviu (silviu) ușoară

Clasa 11 Teoria Grafurilor Probleme elementare cu grafuri neorientate

Rezolvă

Detalii

Problema	ListaVecini	Operații I/O	listavecini.in/listavecini.out
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64409118	Utilizator	Stefan David-Andrei (Dacioso)
Fișier	listavecini.cpp	Dimensiune	577 B
Data încărcării	05 Mai 2026, 15:56	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

listavecini.cpp:5:13: error: variable ‘std::ifstream cin’ has initializer but incomplete type
    5 | ifstream cin("listavecini.in");
      |             ^
listavecini.cpp:6:14: error: variable ‘std::ofstream cout’ has initializer but incomplete type
    6 | ofstream cout("listavecini.out");
      |              ^
listavecini.cpp: In function ‘void citire()’:
listavecini.cpp:13:5: error: reference to ‘cin’ is ambiguous
   13 |     cin>>n;
      |     ^~~
In file included from listavecini.cpp:1:
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
listavecini.cpp:5:10: note:                 ‘<typeprefixerror>cin’
    5 | ifstream cin("listavecini.in");
      |          ^~~
listavecini.cpp:14:11: error: reference to ‘cin’ is ambiguous
   14 |     while(cin>>x>>y)
      |           ^~~
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
listavecini.cpp:5:10: note:                 ‘<typeprefixerror>cin’
    5 | ifstream cin("listavecini.in");
      |          ^~~
listavecini.cpp: In function ‘int main()’:
listavecini.cpp:29:9: error: reference to ‘cout’ is ambiguous
   29 |         cout<<nrv<<" ";
      |         ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
listavecini.cpp:6:10: note:                 ‘<typeprefixerror>cout’
    6 | ofstream cout("listavecini.out");
      |          ^~~~
listavecini.cpp:32:17: error: reference to ‘cout’ is ambiguous
   32 |                 cout<<j<<" ";
      |                 ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
listavecini.cpp:6:10: note:                 ‘<typeprefixerror>cout’
    6 | ofstream cout("listavecini.out");
      |          ^~~~
listavecini.cpp:33:9: error: reference to ‘cout’ is ambiguous
   33 |         cout<<endl;
      |         ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
listavecini.cpp:6:10: note:                 ‘<typeprefixerror>cout’
    6 | ofstream cout("listavecini.out");
      |          ^~~~

Cum funcționează evaluarea?