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	#56159498	Utilizator	Ile Damaris (Ile_Damaris)
Fișier	produsmatricerara.cpp	Dimensiune	1.27 KB
Data încărcării	08 Februarie 2025, 12:24	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

produsmatricerara.cpp: In function 'void citire(andra*, int)':
produsmatricerara.cpp:38:9: error: reference to 'cin' is ambiguous
         cin >> a[i].i >> a[i].j >> a[i].val;

         ^
produsmatricerara.cpp:28:10: note: candidates are: std::ifstream cin
 ifstream cin("matrice_rara.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 afisare(andra*, int)':
produsmatricerara.cpp:42:5: error: reference to 'cout' is ambiguous
     cout << n << '\n';

     ^
produsmatricerara.cpp:29:10: note: candidates are: std::ofstream cout
 ofstream cout("matrice_rara.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:44:9: error: reference to 'cout' is ambiguous
         cout << a[i].i << " " << a[i].j << " " << a[i].val << '\n';

         ^
produsmatricerara.cpp:29:10: note: candidates are: std::ofstream cout
 ofstream cout("matrice_rara.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 maimic(andra, andra)':
produsmatricerara.cpp:48:36: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
     return a.i < b.i || a.i == b.i && a.j < b.j;

                                    ^
produsmatricerara.cpp: In function 'int main()':
produsmatricerara.cpp:53:5: error: reference to 'cin' is ambiguous
     cin >> n >> m >> n1 >> n2;

     ^
produsmatricerara.cpp:28:10: note: candidates are: std::ifstream cin
 ifstream cin("matrice_rara.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:74:5: error: reference to 'cout' is ambiguous
     cout << nc << '\n';

     ^
produsmatricerara.cpp:29:10: note: candidates are: std::ofstream cout
 ofstream cout("matrice_rara.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:76:9: error: reference to 'cout' is ambiguous
         cout << c[i].i << " " << c[i].j << " " << c[i].val << '\n';

         ^
produsmatricerara.cpp:29:10: note: candidates are: std::ofstream cout
 ofstream cout("matrice_rara.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:80:5: error: redefinition of 'int main()'
 int main() {

     ^
produsmatricerara.cpp:51:5: error: 'int main()' previously defined here
 int main()

     ^
produsmatricerara.cpp:84:22: error: 'inmultire' was not declared in this scope
     inmultire(a, b, c);

                      ^

Cum funcționează evaluarea?