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	#64320354	Utilizator	Dinca Andreea (andreeadincaclaudia)
Fișier	matrice_rara.cpp	Dimensiune	1.28 KB
Data încărcării	29 Aprilie 2026, 14:29	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

matrice_rara.cpp: In function ‘void citire(andra*, int)’:
matrice_rara.cpp:16:9: error: reference to ‘cin’ is ambiguous
   16 |         cin >> a[i].i >> a[i].j >> a[i].val;
      |         ^~~
In file included from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:146,
                 from matrice_rara.cpp:1:
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
matrice_rara.cpp:4:10: note:                 ‘std::ifstream cin’
    4 | ifstream cin("matrice_rara.in");
      |          ^~~
matrice_rara.cpp: In function ‘void afisare(andra*, int)’:
matrice_rara.cpp:21:5: error: reference to ‘cout’ is ambiguous
   21 |     cout << n << '\n';
      |     ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
matrice_rara.cpp:5:10: note:                 ‘std::ofstream cout’
    5 | ofstream cout("matrice_rara.out");
      |          ^~~~
matrice_rara.cpp:23:9: error: reference to ‘cout’ is ambiguous
   23 |         cout << a[i].i << " " << a[i].j << " " << a[i].val << '\n';
      |         ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
matrice_rara.cpp:5:10: note:                 ‘std::ofstream cout’
    5 | ofstream cout("matrice_rara.out");
      |          ^~~~
matrice_rara.cpp: In function ‘int maimic(andra, andra)’:
matrice_rara.cpp:28:36: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
   28 |     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
   35 |     cin >> n >> m >> n1 >> n2;
      |     ^~~
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
matrice_rara.cpp:4:10: note:                 ‘std::ifstream cin’
    4 | ifstream cin("matrice_rara.in");
      |          ^~~
matrice_rara.cpp:56:5: error: reference to ‘cout’ is ambiguous
   56 |     cout << nc << '\n';
      |     ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
matrice_rara.cpp:5:10: note:                 ‘std::ofstream cout’
    5 | ofstream cout("matrice_rara.out");
      |          ^~~~
matrice_rara.cpp:58:9: error: reference to ‘cout’ is ambiguous
   58 |         cout << c[i].i << " " << c[i].j << " " << c[i].val << '\n';
      |         ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
matrice_rara.cpp:5:10: note:                 ‘std::ofstream cout’
    5 | ofstream cout("matrice_rara.out");
      |          ^~~~

Cum funcționează evaluarea?