#814
Fiind date două numere naturale x și y determinați valoarea care trebuie adunată la x pentru a obține triplul lui y.
| Problema | triplul | Operații I/O |
tastatură/ecran
|
|---|---|---|---|
| Limita timp | 0.1 secunde | Limita memorie |
Total: 64 MB
/
Stivă 8 MB
|
| Id soluție | #64795606 | Utilizator | |
| Fișier | triplul.cpp | Dimensiune | 118 B |
| Data încărcării | 01 Iunie 2026, 21:36 | Scor/rezultat | Eroare de compilare |
triplul.cpp: In function ‘int main()’: triplul.cpp:5:5: error: no match for ‘operator<<’ (operand types are ‘std::istream’ {aka ‘std::basic_istream<char>’} and ‘int’) 5 | cin<<x<<y; | ~~~^~~ | | | | | int | std::istream {aka std::basic_istream<char>} triplul.cpp:5:5: note: candidate: ‘operator<<(int, int)’ (built-in) 5 | cin<<x<<y; | ~~~^~~ triplul.cpp:5:5: note: no known conversion for argument 1 from ‘std::istream’ {aka ‘std::basic_istream<char>’} to ‘int’ In file included from /usr/include/c++/13/string:54, from /usr/include/c++/13/bits/locale_classes.h:40, from /usr/include/c++/13/bits/ios_base.h:41, from /usr/include/c++/13/ios:44, from /usr/include/c++/13/ostream:40, from /usr/include/c++/13/iostream:41, from triplul.cpp:1: /usr/include/c++/13/bits/basic_string.h:4032:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const __cxx11::basic_string<_CharT, _Traits, _Alloc>&)’ 4032 | operator<<(basic_ostream<_CharT, _Traits>& __os, | ^~~~~~~~ /usr/include/c++/13/bits/basic_string.h:4032:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | cin<<x<<y; | ^ In file included from /usr/include/c++/13/bits/ios_base.h:46: /usr/include/c++/13/system_error:339:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const error_code&)’ 339 | operator<<(basic_ostream<_CharT, _Traits>& __os, const error_code& __e) | ^~~~~~~~ /usr/include/c++/13/system_error:339:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | cin<<x<<y; | ^ /usr/include/c++/13/ostream:554:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, _CharT)’ 554 | operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c) | ^~~~~~~~ /usr/include/c++/13/ostream:554:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | cin<<x<<y; | ^ /usr/include/c++/13/ostream:564:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, char)’ 564 | operator<<(basic_ostream<_CharT, _Traits>& __out, char __c) | ^~~~~~~~ /usr/include/c++/13/ostream:564:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | cin<<x<<y; | ^ /usr/include/c++/13/ostream:570:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, char)’ 570 | operator<<(basic_ostream<char, _Traits>& __out, char __c) | ^~~~~~~~ /usr/include/c++/13/ostream:570:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | cin<<x<<y; | ^ /usr/include/c++/13/ostream:581:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, signed char)’ 581 | operator<<(basic_ostream<char, _Traits>& __out, signed char __c) | ^~~~~~~~ /usr/include/c++/13/ostream:581:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | cin<<x<<y; | ^ /usr/include/c++/13/ostream:586:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, unsigned char)’ 586 | operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c) | ^~~~~~~~ /usr/include/c++/13/ostream:586:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | cin<<x<<y; | ^ /usr/include/c++/13/ostream:645:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const _CharT*)’ 645 | operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s) | ^~~~~~~~ /usr/include/c++/13/ostream:645:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | cin<<x<<y; | ^ In file included from /usr/include/c++/13/ostream:880: /usr/include/c++/13/bits/ostream.tcc:307:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const char*)’ 307 | operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s) | ^~~~~~~~ /usr/include/c++/13/bits/ostream.tcc:307:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’ 5 | cin<<x<<y; | ^ /usr/include/c++/13/ostream:662:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, const char*)’ 662 | operator<<(basic_ostream<char, _Traits>& __out, const char* __s) | ^~~~~~~~ /usr/include/c++/13/ostream:662:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | cin<<x<<y; | ^ /usr/include/c++/13/ostream:675:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, const signed char*)’ 675 | operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s) | ^~~~~~~~ /usr/include/c++/13/ostream:675:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | cin<<x<<y; | ^ /usr/include/c++/13/ostream:680:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, const unsigned char*)’ 680 | operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s) | ^~~~~~~~ /usr/include/c++/13/ostream:680:5: note: template argument deduction/substitution failed: triplul.cpp:5:7: note: ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’ 5 | cin<<x<<y; | ^ /usr/include/c++/13/ostream:801:5: note: candidate: ‘template<class _Ostream, class _Tp> _Ostream&& std::operator<<(_Ostream&&, const _Tp&)’ 801 | operator<<(_Ostream&& __os, const _Tp& __x) | ^~~~~~~~ /usr/include/c++/13/ostream:801:5: note: template argument deduction/substitution failed: /usr/include/c++/13/ostream: In substitution of ‘template<class _Ostream, class _Tp> _Ostream&& std::operator<<(_Ostream&&, const _Tp&) [with _Ostream = std::basic_istream<char>&; _Tp = int]’: triplul.cpp:5:7: required from here /usr/include/c++/13/ostream:801:5: error: no type named ‘type’ in ‘struct std::enable_if<false, void>’ triplul.cpp:7:6: error: no match for ‘operator>>’ (operand types are ‘std::ostream’ {aka ‘std::basic_ostream<char>’} and ‘int’) 7 | cout>>n; | ~~~~^~~ | | | | | int | std::ostream {aka std::basic_ostream<char>} triplul.cpp:7:6: note: candidate: ‘operator>>(int, int)’ (built-in) 7 | cout>>n; | ~~~~^~~ triplul.cpp:7:6: note: no known conversion for argument 1 from ‘std::ostream’ {aka ‘std::basic_ostream<char>’} to ‘int’ In file included from /usr/include/c++/13/string:55: /usr/include/c++/13/bits/basic_string.tcc:827:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, __cxx11::basic_string<_CharT, _Traits, _Alloc>&)’ 827 | operator>>(basic_istream<_CharT, _Traits>& __in, | ^~~~~~~~ /usr/include/c++/13/bits/basic_string.tcc:827:5: note: template argument deduction/substitution failed: triplul.cpp:7:8: note: ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<_CharT, _Traits>’ 7 | cout>>n; | ^ In file included from /usr/include/c++/13/istream:1106, from /usr/include/c++/13/iostream:42: /usr/include/c++/13/bits/istream.tcc:975:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, _CharT&)’ 975 | operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c) | ^~~~~~~~ /usr/include/c++/13/bits/istream.tcc:975:5: note: template argument deduction/substitution failed: triplul.cpp:7:8: note: ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<_CharT, _Traits>’ 7 | cout>>n; | ^ /usr/include/c++/13/istream:846:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, unsigned char&)’ 846 | operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c) | ^~~~~~~~ /usr/include/c++/13/istream:846:5: note: template argument deduction/substitution failed: triplul.cpp:7:8: note: ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<char, _Traits>’ 7 | cout>>n; | ^ /usr/include/c++/13/istream:851:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, signed char&)’ 851 | operator>>(basic_istream<char, _Traits>& __in, signed char& __c) | ^~~~~~~~ /usr/include/c++/13/istream:851:5: note: template argument deduction/substitution failed: triplul.cpp:7:8: note: ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<char, _Traits>’ 7 | cout>>n; | ^ /usr/include/c++/13/istream:893:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(basic_istream<_CharT, _Traits>&, _CharT*)’ 893 | operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s) | ^~~~~~~~ /usr/include/c++/13/istream:893:5: note: template argument deduction/substitution failed: triplul.cpp:7:8: note: ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<_CharT, _Traits>’ 7 | cout>>n; | ^ /usr/include/c++/13/istream:936:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, unsigned char*)’ 936 | operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s) | ^~~~~~~~ /usr/include/c++/13/istream:936:5: note: template argument deduction/substitution failed: triplul.cpp:7:8: note: ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<char, _Traits>’ 7 | cout>>n; | ^ /usr/include/c++/13/istream:942:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(basic_istream<char, _Traits>&, signed char*)’ 942 | operator>>(basic_istream<char, _Traits>& __in, signed char* __s) | ^~~~~~~~ /usr/include/c++/13/istream:942:5: note: template argument deduction/substitution failed: triplul.cpp:7:8: note: ‘std::ostream’ {aka ‘std::basic_ostream<char>’} is not derived from ‘std::basic_istream<char, _Traits>’ 7 | cout>>n; | ^ /usr/include/c++/13/istream:1096:5: note: candidate: ‘template<class _Istream, class _Tp> _Istream&& std::operator>>(_Istream&&, _Tp&&)’ 1096 | operator>>(_Istream&& __is, _Tp&& __x) | ^~~~~~~~ /usr/include/c++/13/istream:1096:5: note: template argument deduction/substitution failed: /usr/include/c++/13/istream: In substitution of ‘template<class _Istream, class _Tp> _Istream&& std::operator>>(_Istream&&, _Tp&&) [with _Istream = std::basic_ostream<char>&; _Tp = int&]’: triplul.cpp:7:8: required from here /usr/include/c++/13/istream:1096:5: error: no type named ‘type’ in ‘struct std::enable_if<false, void>’ triplul.cpp:8:8: error: expected primary-expression before ‘:’ token 8 | return: 0;} | ^ triplul.cpp:8:8: error: expected ‘;’ before ‘:’ token 8 | return: 0;} | ^ | ; triplul.cpp:8:8: error: expected primary-expression before ‘:’ token
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema triplul 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.