Rezumat problemă

Produs_Matrice

#1313

Se citesc doua matrice din fisier . Sa se calculeze produsul lor .

Fișiere Jurj Flaviu-Andrei (jurjstyle) ușoară

Clasa 11 Probleme diverse Matematica

Rezolvă

Detalii

Problema	Produs_Matrice	Operații I/O	produs_matrice.in/produs_matrice.out
Limita timp	0.05 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64493119	Utilizator	carauleanu stefan (carauleanu_stefan)
Fișier	produs_matrice.cpp	Dimensiune	780 B
Data încărcării	11 Mai 2026, 09:30	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

produs_matrice.cpp:3:13: error: variable ‘std::ifstream cin’ has initializer but incomplete type
    3 | ifstream cin("produs_matrice.in");
      |             ^
produs_matrice.cpp:4:14: error: variable ‘std::ofstream cout’ has initializer but incomplete type
    4 | ofstream cout("produs_matrice.out");
      |              ^
produs_matrice.cpp: In function ‘int main()’:
produs_matrice.cpp:9:5: error: reference to ‘cin’ is ambiguous
    9 |     cin >> m >> n;
      |     ^~~
In file included from produs_matrice.cpp:1:
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
produs_matrice.cpp:3:10: note:                 ‘<typeprefixerror>cin’
    3 | ifstream cin("produs_matrice.in");
      |          ^~~
produs_matrice.cpp:12:13: error: reference to ‘cin’ is ambiguous
   12 |             cin >> a[i][j] ;
      |             ^~~
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
produs_matrice.cpp:3:10: note:                 ‘<typeprefixerror>cin’
    3 | ifstream cin("produs_matrice.in");
      |          ^~~
produs_matrice.cpp:13:5: error: reference to ‘cin’ is ambiguous
   13 |     cin >> p;
      |     ^~~
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
produs_matrice.cpp:3:10: note:                 ‘<typeprefixerror>cin’
    3 | ifstream cin("produs_matrice.in");
      |          ^~~
produs_matrice.cpp:16:13: error: reference to ‘cin’ is ambiguous
   16 |             cin >> b[i][j] ;
      |             ^~~
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
produs_matrice.cpp:3:10: note:                 ‘<typeprefixerror>cin’
    3 | ifstream cin("produs_matrice.in");
      |          ^~~
produs_matrice.cpp:24:13: error: reference to ‘cout’ is ambiguous
   24 |             cout << c[i][j] << " " ;
      |             ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
produs_matrice.cpp:4:10: note:                 ‘<typeprefixerror>cout’
    4 | ofstream cout("produs_matrice.out");
      |          ^~~~
produs_matrice.cpp:25:10: error: reference to ‘cout’ is ambiguous
   25 |          cout << '\n';
      |          ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
produs_matrice.cpp:4:10: note:                 ‘<typeprefixerror>cout’
    4 | ofstream cout("produs_matrice.out");
      |          ^~~~

Cum funcționează evaluarea?