#939
sum00
Să se scrie un program care citeşte de la tastatura două numere naturale şi determină suma lor.
Problema | sum00 | Operații I/O |
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Limita timp | 0.1 secunde | Limita memorie |
Total: 64 MB
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Stivă 8 MB
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Id soluție | #50521982 | Utilizator | |
Fișier | sum00.cpp | Dimensiune | 120 B |
Data încărcării | 12 Aprilie 2024, 19:06 | Scor / rezultat | Eroare de compilare |
sum00.cpp: In function 'int main()': sum00.cpp:6:8: error: no match for 'operator<<' (operand types are 'std::istream {aka std::basic_istream<char>}' and 'int') cin<<a<<b; ^ sum00.cpp:6:8: note: candidates are: In file included from /usr/include/c++/4.8/string:52:0, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from sum00.cpp:1: /usr/include/c++/4.8/bits/basic_string.h:2753:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::basic_string<_CharT, _Traits, _Alloc>&) operator<<(basic_ostream<_CharT, _Traits>& __os, ^ /usr/include/c++/4.8/bits/basic_string.h:2753:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<a<<b; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from sum00.cpp:1: /usr/include/c++/4.8/ostream:471:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT) operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c) ^ /usr/include/c++/4.8/ostream:471:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<a<<b; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from sum00.cpp:1: /usr/include/c++/4.8/ostream:476:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, char) operator<<(basic_ostream<_CharT, _Traits>& __out, char __c) ^ /usr/include/c++/4.8/ostream:476:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<a<<b; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from sum00.cpp:1: /usr/include/c++/4.8/ostream:482:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, char) operator<<(basic_ostream<char, _Traits>& __out, char __c) ^ /usr/include/c++/4.8/ostream:482:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<a<<b; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from sum00.cpp:1: /usr/include/c++/4.8/ostream:488:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, signed char) operator<<(basic_ostream<char, _Traits>& __out, signed char __c) ^ /usr/include/c++/4.8/ostream:488:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<a<<b; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from sum00.cpp:1: /usr/include/c++/4.8/ostream:493:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, unsigned char) operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c) ^ /usr/include/c++/4.8/ostream:493:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<a<<b; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from sum00.cpp:1: /usr/include/c++/4.8/ostream:513:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const _CharT*) operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s) ^ /usr/include/c++/4.8/ostream:513:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<a<<b; ^ In file included from /usr/include/c++/4.8/ostream:612:0, from /usr/include/c++/4.8/iostream:39, from sum00.cpp:1: /usr/include/c++/4.8/bits/ostream.tcc:321:5: note: template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const char*) operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s) ^ /usr/include/c++/4.8/bits/ostream.tcc:321:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<a<<b; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from sum00.cpp:1: /usr/include/c++/4.8/ostream:530:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const char*) operator<<(basic_ostream<char, _Traits>& __out, const char* __s) ^ /usr/include/c++/4.8/ostream:530:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<a<<b; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from sum00.cpp:1: /usr/include/c++/4.8/ostream:543:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const signed char*) operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s) ^ /usr/include/c++/4.8/ostream:543:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<a<<b; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from sum00.cpp:1: /usr/include/c++/4.8/ostream:548:5: note: template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const unsigned char*) operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s) ^ /usr/include/c++/4.8/ostream:548:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>' cin<<a<<b; ^ In file included from /usr/include/c++/4.8/iostream:39:0, from sum00.cpp:1: /usr/include/c++/4.8/ostream:602:5: note: template<class _CharT, class _Traits, class _Tp> std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&&, const _Tp&) operator<<(basic_ostream<_CharT, _Traits>&& __os, const _Tp& __x) ^ /usr/include/c++/4.8/ostream:602:5: note: template argument deduction/substitution failed: sum00.cpp:6:10: note: 'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>' cin<<a<<b; ^ sum00.cpp:7:9: error: no match for 'operator>>' (operand types are 'std::ostream {aka std::basic_ostream<char>}' and 'int') cout>>a+b; ^ sum00.cpp:7:9: note: candidates are: In file included from /usr/include/c++/4.8/string:53:0, from /usr/include/c++/4.8/bits/locale_classes.h:40, from /usr/include/c++/4.8/bits/ios_base.h:41, from /usr/include/c++/4.8/ios:42, from /usr/include/c++/4.8/ostream:38, from /usr/include/c++/4.8/iostream:39, from sum00.cpp:1: /usr/include/c++/4.8/bits/basic_string.tcc:996:5: note: template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::basic_string<_CharT, _Traits, _Alloc>&) operator>>(basic_istream<_CharT, _Traits>& __in, ^ /usr/include/c++/4.8/bits/basic_string.tcc:996:5: note: template argument deduction/substitution failed: sum00.cpp:7:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' cout>>a+b; ^ In file included from /usr/include/c++/4.8/istream:882:0, from /usr/include/c++/4.8/iostream:40, from sum00.cpp:1: /usr/include/c++/4.8/bits/istream.tcc:955:5: note: template<class _CharT2, class _Traits2> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*) operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s) ^ /usr/include/c++/4.8/bits/istream.tcc:955:5: note: template argument deduction/substitution failed: sum00.cpp:7:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' cout>>a+b; ^ In file included from /usr/include/c++/4.8/istream:882:0, from /usr/include/c++/4.8/iostream:40, from sum00.cpp:1: /usr/include/c++/4.8/bits/istream.tcc:923:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&) operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c) ^ /usr/include/c++/4.8/bits/istream.tcc:923:5: note: template argument deduction/substitution failed: sum00.cpp:7:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' cout>>a+b; ^ In file included from /usr/include/c++/4.8/iostream:40:0, from sum00.cpp:1: /usr/include/c++/4.8/istream:727:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char&) operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c) ^ /usr/include/c++/4.8/istream:727:5: note: template argument deduction/substitution failed: sum00.cpp:7:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>a+b; ^ In file included from /usr/include/c++/4.8/iostream:40:0, from sum00.cpp:1: /usr/include/c++/4.8/istream:732:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char&) operator>>(basic_istream<char, _Traits>& __in, signed char& __c) ^ /usr/include/c++/4.8/istream:732:5: note: template argument deduction/substitution failed: sum00.cpp:7:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>a+b; ^ In file included from /usr/include/c++/4.8/iostream:40:0, from sum00.cpp:1: /usr/include/c++/4.8/istream:774:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*) operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s) ^ /usr/include/c++/4.8/istream:774:5: note: template argument deduction/substitution failed: sum00.cpp:7:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>a+b; ^ In file included from /usr/include/c++/4.8/iostream:40:0, from sum00.cpp:1: /usr/include/c++/4.8/istream:779:5: note: template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*) operator>>(basic_istream<char, _Traits>& __in, signed char* __s) ^ /usr/include/c++/4.8/istream:779:5: note: template argument deduction/substitution failed: sum00.cpp:7:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>a+b; ^ In file included from /usr/include/c++/4.8/iostream:40:0, from sum00.cpp:1: /usr/include/c++/4.8/istream:872:5: note: template<class _CharT, class _Traits, class _Tp> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x) ^ /usr/include/c++/4.8/istream:872:5: note: template argument deduction/substitution failed: sum00.cpp:7:13: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' cout>>a+b; ^ sum00.cpp:7:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] cout>>a+b; ^
www.pbinfo.ro permite evaluarea a două tipuri de probleme:
Problema sum00 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.