Rezumat problemă

AF

#2641

Gigel are ca temă la matematică să precizeze valoarea de adevăr a unor expresii de forma nr1 semn nr2 = nr3, unde nr1, nr2 și nr3 sunt numere naturale, iar semn poate fi +, -, x sau : reprezintând adunarea, scăderea, înmulțirea și împărțirea. Ajutați-l pe Gigel să rezolve tema la matematică.

-

Fișiere Doru Floare (Doruletz) Doru Floare ușoară

Clasa 9 Elemente de baza ale limbajului Structuri repetitive Calculul unor expresii

Rezolvă

Detalii

Problema	AF	Operații I/O	af.in/af.out
Limita timp	1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64332857	Utilizator	Pîrvan Marcel Petruț (Pirvan_Petrut)
Fișier	af.cpp	Dimensiune	1010 B
Data încărcării	30 Aprilie 2026, 09:44	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

af.cpp: In function ‘int main()’:
af.cpp:11:5: error: reference to ‘cin’ is ambiguous
   11 |     cin >> n;
      |     ^~~
In file included from af.cpp:2:
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
af.cpp:5:10: note:                 ‘std::ifstream cin’
    5 | ifstream cin("af.in");
      |          ^~~
af.cpp:16:9: error: reference to ‘cin’ is ambiguous
   16 |         cin >> x >> c1 >> y >> c2 >> z;
      |         ^~~
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
af.cpp:5:10: note:                 ‘std::ifstream cin’
    5 | ifstream cin("af.in");
      |          ^~~
af.cpp:19:17: error: reference to ‘cout’ is ambiguous
   19 |                 cout << "Adevarat" << '\n';
      |                 ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
af.cpp:6:10: note:                 ‘std::ofstream cout’
    6 | ofstream cout("af.out");
      |          ^~~~
af.cpp:21:17: error: reference to ‘cout’ is ambiguous
   21 |                 cout << "Fals" << '\n';
      |                 ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
af.cpp:6:10: note:                 ‘std::ofstream cout’
    6 | ofstream cout("af.out");
      |          ^~~~
af.cpp:17:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wdangling-else]
   17 |         if(c1=='+')
      |           ^
af.cpp:24:17: error: reference to ‘cout’ is ambiguous
   24 |                 cout << "Adevarat" << '\n';
      |                 ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
af.cpp:6:10: note:                 ‘std::ofstream cout’
    6 | ofstream cout("af.out");
      |          ^~~~
af.cpp:26:17: error: reference to ‘cout’ is ambiguous
   26 |                 cout << "Fals" << '\n';
      |                 ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
af.cpp:6:10: note:                 ‘std::ofstream cout’
    6 | ofstream cout("af.out");
      |          ^~~~
af.cpp:22:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wdangling-else]
   22 |         if(c1=='-')
      |           ^
af.cpp:29:17: error: reference to ‘cout’ is ambiguous
   29 |                 cout << "Adevarat" << '\n';
      |                 ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
af.cpp:6:10: note:                 ‘std::ofstream cout’
    6 | ofstream cout("af.out");
      |          ^~~~
af.cpp:31:17: error: reference to ‘cout’ is ambiguous
   31 |                 cout << "Fals" << '\n';
      |                 ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
af.cpp:6:10: note:                 ‘std::ofstream cout’
    6 | ofstream cout("af.out");
      |          ^~~~
af.cpp:27:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wdangling-else]
   27 |         if(c1=='x')
      |           ^
af.cpp:34:17: error: reference to ‘cout’ is ambiguous
   34 |                 cout << "Adevarat" << '\n';
      |                 ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
af.cpp:6:10: note:                 ‘std::ofstream cout’
    6 | ofstream cout("af.out");
      |          ^~~~
af.cpp:36:17: error: reference to ‘cout’ is ambiguous
   36 |                 cout << "Fals" << '\n';
      |                 ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
af.cpp:6:10: note:                 ‘std::ofstream cout’
    6 | ofstream cout("af.out");
      |          ^~~~
af.cpp:38:17: error: reference to ‘cout’ is ambiguous
   38 |                 cout << "Fals" << '\n';
      |                 ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
af.cpp:6:10: note:                 ‘std::ofstream cout’
    6 | ofstream cout("af.out");
      |          ^~~~

Cum funcționează evaluarea?