#3319
Se dau n numere naturale prime. Pentru t perechi de numere naturale s şi d să se afle câte numere naturale din intervalul [s,d] sunt divizibile prin cel puţin unul dintre cele n numere prime.
***
| Problema | Eratostene8 | Operații I/O |
eratostene8.in/eratostene8.out
|
|---|---|---|---|
| Limita timp | 0.5 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
| Id soluție | #64545468 | Utilizator | |
| Fișier | eratostene8.cpp | Dimensiune | 553 B |
| Data încărcării | 13 Mai 2026, 13:55 | Scor/rezultat | Eroare de compilare |
eratostene8.cpp:7:13: error: variable ‘std::ifstream cin’ has initializer but incomplete type 7 | ifstream cin("eratostene8.in"); | ^ eratostene8.cpp:8:14: error: variable ‘std::ofstream cout’ has initializer but incomplete type 8 | ofstream cout("eratostene8.out"); | ^ eratostene8.cpp: In function ‘int main()’: eratostene8.cpp:15:5: error: reference to ‘cin’ is ambiguous 15 | cin >> n; | ^~~ In file included from eratostene8.cpp:1: /usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’ 62 | extern istream cin; ///< Linked to standard input | ^~~ eratostene8.cpp:7:10: note: ‘<typeprefixerror>cin’ 7 | ifstream cin("eratostene8.in"); | ^~~ eratostene8.cpp:18:9: error: reference to ‘cin’ is ambiguous 18 | cin >> v[i]; | ^~~ /usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’ 62 | extern istream cin; ///< Linked to standard input | ^~~ eratostene8.cpp:7:10: note: ‘<typeprefixerror>cin’ 7 | ifstream cin("eratostene8.in"); | ^~~ eratostene8.cpp:20:5: error: reference to ‘cin’ is ambiguous 20 | cin >> t; | ^~~ /usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’ 62 | extern istream cin; ///< Linked to standard input | ^~~ eratostene8.cpp:7:10: note: ‘<typeprefixerror>cin’ 7 | ifstream cin("eratostene8.in"); | ^~~ eratostene8.cpp:23:9: error: reference to ‘cin’ is ambiguous 23 | cin >> s >> d; | ^~~ /usr/include/c++/13/iostream:62:18: note: candidates are: ‘std::istream std::cin’ 62 | extern istream cin; ///< Linked to standard input | ^~~ eratostene8.cpp:7:10: note: ‘<typeprefixerror>cin’ 7 | ifstream cin("eratostene8.in"); | ^~~ eratostene8.cpp:30:9: error: reference to ‘cout’ is ambiguous 30 | cout << cnt << "\n"; | ^~~~ /usr/include/c++/13/iostream:63:18: note: candidates are: ‘std::ostream std::cout’ 63 | extern ostream cout; ///< Linked to standard output | ^~~~ eratostene8.cpp:8:10: note: ‘<typeprefixerror>cout’ 8 | ofstream cout("eratostene8.out"); | ^~~~
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema Eratostene8 face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:
Suma punctajelor acordate pe testele utilizate pentru verificare este 100. Astfel, soluția ta poate obține cel mult 100 de puncte, caz în care se poate considera corectă.