Rezumat problemă

MerryChristmas

#1893

Moş Crăciun s-a dus la Polul Nord Shopping City să cumpere n cadouri pentru copiii din întreaga lume. Fiecare cadou avea un cod de bare pentru identificarea produsului, corespunzător unui număr format din nouă cifre, prima cifră fiind nenulă. La plecare şi-a amintit că-i promisese unui copil isteţ un cadou special, care să fie diferit de toate celelalte. Moş Crăciun vă roagă să găsiţi un cadou care să aibă codul de bare diferit de toate celelalte.

Consola Bunget Mihai (mihaibun) Mihai Bunget ușoară

Clasa 9 Tablouri unidimensionale (vectori) Parcurgerea vectorilor

Rezolvă

Detalii

Problema	MerryChristmas	Operații I/O	tastatură/ecran
Limita timp	0.05 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#63780098	Utilizator	Opris Mateo Petru (OprisMateo)
Fișier	merrychristmas.cpp	Dimensiune	94 B
Data încărcării	18 Martie 2026, 17:08	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

merrychristmas.cpp: In function 'int main()':
merrychristmas.cpp:5:4: error: no match for 'operator<<' (operand types are 'std::istream {aka std::basic_istream<char>}' and 'int')
 cin<<n;

    ^
merrychristmas.cpp:5:4: 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 merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
 cin<<n;

      ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
 cin<<n;

      ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
 cin<<n;

      ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
 cin<<n;

      ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
 cin<<n;

      ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
 cin<<n;

      ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
 cin<<n;

      ^
In file included from /usr/include/c++/4.8/ostream:612:0,
                 from /usr/include/c++/4.8/iostream:39,
                 from merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
 cin<<n;

      ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
 cin<<n;

      ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
 cin<<n;

      ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
 cin<<n;

      ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from merrychristmas.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:
merrychristmas.cpp:5:6: note:   'std::istream {aka std::basic_istream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
 cin<<n;

      ^
merrychristmas.cpp:6:20: error: expected '}' at end of input
     cout<<412345678;
                    ^

Cum funcționează evaluarea?