Rezumat problemă

Muzeu

#4845

Un tânăr pasionat de călătorii are o listă cu muzee virtuale și, pentru fiecare, câte un singur interval orar, în care acesta poate fi vizitat online, gratuit. Tânărul dispune zilnic de același interval orar pentru vizite; un muzeu este convenabil dacă poate fi vizitat online gratuit în timpul disponibil și dacă pentru vizită îi poate aloca cel puțin o oră. Muzeele din listă sunt numerotate cu valori naturale consecutive, începând cu 1, și cel puțin unul este convenabil.

Fișierul text bac.in conține cel mult 105 linii, iar pe fiecare linie câte o pereche de numere, reprezentând limitele câte unui interval orar: pe prima linie intervalul orar de care tânărul dispune zilnic, iar pe fiecare dintre următoarele linii, intervalul orar de vizitare gratuită pentru câte un muzeu, în ordinea din listă. Limitele intervalelor sunt ore fixe, numere naturale din intervalul [8,22], iar cele aflate pe aceeași linie a fișierului sunt în ordine strict crescătoare și sunt separate printr-un spațiu.

Se cere să se afișeze în fișierul bac.out, separate printr-un spațiu, două valori, reprezentând numărul de muzee convenabile, respectiv numărul de ordine al ultimului astfel de muzeu din lista tânărului.

Subiect Bacalaureat 2025, sesiunea iunie

Fișiere Candale Silviu (silviu) medie

Clasa 9 Probleme diverse Probleme diverse Bacalaureat Bacalaureat 2025 Bac MI

Rezolvă

Detalii

Problema	Muzeu	Operații I/O	bac.in/bac.out
Limita timp	0.3 secunde	Limita memorie	Total: 2 MB / Stivă 2 MB
Id soluție	#64007622	Utilizator	Eremia Bianca (bianca_eremia)
Fișier	muzeu.cpp	Dimensiune	338 B
Data încărcării	04 Aprilie 2026, 14:01	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

muzeu.cpp: In function 'int main()':
muzeu.cpp:21:6: error: no match for 'operator<<' (operand types are 'std::ifstream {aka std::basic_ifstream<char>}' and 'int')
  fout<<nr<<" "<<poz;

      ^
muzeu.cpp:21:6: 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 muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
  fout<<nr<<" "<<poz;

        ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
  fout<<nr<<" "<<poz;

        ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
  fout<<nr<<" "<<poz;

        ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
  fout<<nr<<" "<<poz;

        ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
  fout<<nr<<" "<<poz;

        ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
  fout<<nr<<" "<<poz;

        ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
  fout<<nr<<" "<<poz;

        ^
In file included from /usr/include/c++/4.8/ostream:612:0,
                 from /usr/include/c++/4.8/iostream:39,
                 from muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
  fout<<nr<<" "<<poz;

        ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
  fout<<nr<<" "<<poz;

        ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
  fout<<nr<<" "<<poz;

        ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
  fout<<nr<<" "<<poz;

        ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from muzeu.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:
muzeu.cpp:21:8: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
  fout<<nr<<" "<<poz;

        ^

Cum funcționează evaluarea?