Rezumat problemă

produsMatriceRara

C++

#1700

Scrieţi în limbajul C++ definiţia completă a subprogramului inmultire cu următorul antet:

void inmultire(matrice_rara a, matrice_rara b, matrice_rara &c)

ce calculează în c produsul matricelor rare a şi b.

Consola Antal Alexandru (Courage) medie

Clasa 10 Structuri de date neomogene Probleme diverse

Rezolvă

Detalii

Problema	produsMatriceRara	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#62638089	Utilizator	Groza Raluca (Groza_Raluca15)
Fișier	produsmatricerara.cpp	Dimensiune	1.75 KB
Data încărcării	28 Ianuarie 2026, 11:47	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

produsmatricerara.cpp:32:8: error: redefinition of 'struct triplet'
 struct triplet {

        ^
produsmatricerara.cpp:5:8: error: previous definition of 'struct triplet'
 struct triplet {

        ^
produsmatricerara.cpp:36:8: error: redefinition of 'struct matrice_rara'
 struct matrice_rara {

        ^
produsmatricerara.cpp:9:8: error: previous definition of 'struct matrice_rara'
 struct matrice_rara {

        ^
produsmatricerara.cpp: In function 'void citire()':
produsmatricerara.cpp:45:5: error: reference to 'cin' is ambiguous
     cin >> a.nr_linii >> a.nr_coloane >> a.nr_triplete;

     ^
produsmatricerara.cpp:29:10: note: candidates are: std::ifstream cin
 ifstream cin("mrara.in");

          ^
In file included from produsmatricerara.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
produsmatricerara.cpp:47:9: error: reference to 'cin' is ambiguous
         cin >> a.t[i].linie >> a.t[i].coloana >> a.t[i].valoare;

         ^
produsmatricerara.cpp:29:10: note: candidates are: std::ifstream cin
 ifstream cin("mrara.in");

          ^
In file included from produsmatricerara.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
produsmatricerara.cpp:49:5: error: reference to 'cin' is ambiguous
     cin >> b.nr_linii >> b.nr_coloane >> b.nr_triplete;

     ^
produsmatricerara.cpp:29:10: note: candidates are: std::ifstream cin
 ifstream cin("mrara.in");

          ^
In file included from produsmatricerara.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
produsmatricerara.cpp:51:9: error: reference to 'cin' is ambiguous
         cin >> b.t[i].linie >> b.t[i].coloana >> b.t[i].valoare;

         ^
produsmatricerara.cpp:29:10: note: candidates are: std::ifstream cin
 ifstream cin("mrara.in");

          ^
In file included from produsmatricerara.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
produsmatricerara.cpp: In function 'void afis(matrice_rara)':
produsmatricerara.cpp:89:5: error: reference to 'cout' is ambiguous
     cout << a.nr_linii << " " << a.nr_coloane << " " << a.nr_triplete << "\n";

     ^
produsmatricerara.cpp:30:10: note: candidates are: std::ofstream cout
 ofstream cout("mrara.out");

          ^
In file included from produsmatricerara.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
produsmatricerara.cpp:91:9: error: reference to 'cout' is ambiguous
         cout << a.t[i].linie << " " << a.t[i].coloana << " " << a.t[i].valoare << "\n";

         ^
produsmatricerara.cpp:30:10: note: candidates are: std::ofstream cout
 ofstream cout("mrara.out");

          ^
In file included from produsmatricerara.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
produsmatricerara.cpp: In function 'int main()':
produsmatricerara.cpp:104:5: error: redefinition of 'int main()'
 int main() {

     ^
produsmatricerara.cpp:94:5: error: 'int main()' previously defined here
 int main()

     ^

Cum funcționează evaluarea?