Detalii evaluare: ~36489422

Detalii evaluare #36489422

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Rezumat problemă

`#353` Spectacole

La un festival sunt programate n spectacole. Pentru fiecare se cunoaște momentul de început și momentul de sfârșit, exprimate prin numere naturale. Un spectator dorește să urmărească cât mai multe spectacole în întregime.

Determinați numărul maxim de spectacole care pot fi urmărite, fără ca acestea să se suprapună.

Fișiere
Candale Silviu (silviu)
ușoară

Clasa 11 Metoda Greedy Probleme diverse cu metoda Greedy

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Detalii

Problema	Spectacole	Operații I/O	`spectacole.in`/`spectacole.out`
Limita timp	0.1 secunde	Limita memorie	Total: `64 MB` / Stivă `8 MB`
Id soluție	`#36489422`	Utilizator	Toma Mihai (mihai_toma)
Fișier	spectacole.cpp	Dimensiune	2.09 KB
Data încărcării	04 Mai 2022, 19:40	Scor / rezultat	Eroare de compilare

Evaluare

Mesaj compilare

spectacole.cpp: In function 'int main()':
spectacole.cpp:62:9: error: no match for 'operator<<' (operand types are 'std::ifstream {aka std::basic_ifstream<char>}' and 'int')
     fout<<nr_spectacole;

         ^
spectacole.cpp:62:9: 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 spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     fout<<nr_spectacole;

           ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     fout<<nr_spectacole;

           ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     fout<<nr_spectacole;

           ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     fout<<nr_spectacole;

           ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     fout<<nr_spectacole;

           ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     fout<<nr_spectacole;

           ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     fout<<nr_spectacole;

           ^
In file included from /usr/include/c++/4.8/ostream:612:0,
                 from /usr/include/c++/4.8/iostream:39,
                 from spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     fout<<nr_spectacole;

           ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     fout<<nr_spectacole;

           ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     fout<<nr_spectacole;

           ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<char, _Traits>'
     fout<<nr_spectacole;

           ^
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from spectacole.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:
spectacole.cpp:62:11: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
     fout<<nr_spectacole;

           ^

Cum funcționează evaluarea?

www.pbinfo.ro permite evaluarea a două tipuri de probleme:

probleme la care rezolvarea presupune scrierea unui program complet
probleme la care rezolvarea presupune scrierea unei secvențe de program - câteva instrucțiuni, o listă de declarații, una sau mai multe funcții, etc.

Problema Spectacole face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:

Programul sursă este compilat folosind compilatorul corespunzător. Dacă în urma compilării se obțin erori sau avertismente, acestea sunt afișate în această pagină.
Dacă programul a fost compilat, executabilul obținut va fi rulat, furnizându-i-se unul sau mai multe seturi de date de intrare, în concordanță cu restricțiile specifice problemei. Pentru fiecare set de date se obține un anumit punctaj, în raport cu corectitudinea soluției tale.

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.