Rezumat problemă

patratPerfect

#178

Să se scrie un program care verifică dacă un număr natural citit de la tastatură este pătrat perfect.

Consola Candale Silviu (silviu) ușoară

Clasa 9 Elemente de baza ale limbajului Structura de decizie

Rezolvă

Detalii

Problema	patratPerfect	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64257508	Utilizator	Ioniță Denis (Ionita_Denis)
Fișier	patratperfect.cpp	Dimensiune	240 B
Data încărcării	26 Aprilie 2026, 18:21	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

patratperfect.cpp:3:13: error: variable ‘std::ifstream cin’ has initializer but incomplete type
    3 | ifstream cin("code.in"); ofstream cout("code.out");
      |             ^
patratperfect.cpp:3:39: error: variable ‘std::ofstream cout’ has initializer but incomplete type
    3 | ifstream cin("code.in"); ofstream cout("code.out");
      |                                       ^
patratperfect.cpp: In function ‘int main()’:
patratperfect.cpp:6:5: error: reference to ‘cin’ is ambiguous
    6 |     cin>>n;
      |     ^~~
In file included from patratperfect.cpp:1:
/usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
patratperfect.cpp:3:10: note:                 ‘<typeprefixerror>cin’
    3 | ifstream cin("code.in"); ofstream cout("code.out");
      |          ^~~
patratperfect.cpp:8:16: error: reference to ‘cout’ is ambiguous
    8 |     if(d*d==n) cout<<"da";
      |                ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
patratperfect.cpp:3:35: note:                 ‘<typeprefixerror>cout’
    3 | ifstream cin("code.in"); ofstream cout("code.out");
      |                                   ^~~~
patratperfect.cpp:9:10: error: reference to ‘cout’ is ambiguous
    9 |     else cout<<"nu";
      |          ^~~~
/usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
patratperfect.cpp:3:35: note:                 ‘<typeprefixerror>cout’
    3 | ifstream cin("code.in"); ofstream cout("code.out");
      |                                   ^~~~

Cum funcționează evaluarea?