Rezumat problemă

Matrice_Rara

#1323

Să se calculeze suma a două matrice rare .

Admitere Mate-Info UBB, 2015

Fișiere Jurj Flaviu-Andrei (jurjstyle) dificilă

Clasa 10 Structuri de date neomogene Probleme diverse

Rezolvă

Detalii

Problema	Matrice_Rara	Operații I/O	matrice_rara.in/matrice_rara.out
Limita timp	1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#44220627	Utilizator	Radu Matei (mateisr)
Fișier	matrice_rara.cpp	Dimensiune	1.27 KB
Data încărcării	14 Iulie 2023, 15:38	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

matrice_rara.cpp:4:13: error: variable 'std::ifstream cin' has initializer but incomplete type
 ifstream cin("matrice_rara.in");

             ^
matrice_rara.cpp:5:14: error: variable 'std::ofstream cout' has initializer but incomplete type
 ofstream cout("matrice_rara.out");

              ^
matrice_rara.cpp: In function 'void citire(mat*, int)':
matrice_rara.cpp:16:9: error: reference to 'cin' is ambiguous
         cin >> a[i].i >> a[i].j >> a[i].val;

         ^
matrice_rara.cpp:4:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("matrice_rara.in");

          ^
In file included from matrice_rara.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
matrice_rara.cpp: In function 'void afisare(mat*, int)':
matrice_rara.cpp:21:5: error: reference to 'cout' is ambiguous
     cout << n << '\n';

     ^
matrice_rara.cpp:5:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("matrice_rara.out");

          ^
In file included from matrice_rara.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
matrice_rara.cpp:23:9: error: reference to 'cout' is ambiguous
         cout << a[i].i << " " << a[i].j << " " << a[i].val << '\n';

         ^
matrice_rara.cpp:5:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("matrice_rara.out");

          ^
In file included from matrice_rara.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
matrice_rara.cpp: In function 'int maimic(mat, mat)':
matrice_rara.cpp:28:36: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
     return a.i < b.i || a.i == b.i && a.j < b.j;

                                    ^
matrice_rara.cpp: In function 'int main()':
matrice_rara.cpp:35:5: error: reference to 'cin' is ambiguous
     cin >> n >> m >> n1 >> n2;

     ^
matrice_rara.cpp:4:10: note: candidates are: <typeprefixerror>cin
 ifstream cin("matrice_rara.in");

          ^
In file included from matrice_rara.cpp:1:0:
/usr/include/c++/4.8/iostream:60:18: note:                 std::istream std::cin
   extern istream cin;  /// Linked to standard input
                  ^
matrice_rara.cpp:56:5: error: reference to 'cout' is ambiguous
     cout << nc << '\n';

     ^
matrice_rara.cpp:5:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("matrice_rara.out");

          ^
In file included from matrice_rara.cpp:1:0:
/usr/include/c++/4.8/iostream:61:18: note:                 std::ostream std::cout
   extern ostream cout;  /// Linked to standard output
                  ^
matrice_rara.cpp:58:9: error: reference to 'cout' is ambiguous
         cout << c[i].i << " " << c[i].j << " " << c[i].val << '\n';

         ^
matrice_rara.cpp:5:10: note: candidates are: <typeprefixerror>cout
 ofstream cout("matrice_rara.out");

          ^
In file included from matrice_rara.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?