Detalii evaluare #50091980

Rezumat problemă

Andrei este elev în clasa a V-a și își dorește mult un smartphone. Tatăl său știe de acest lucru și s-a gândit să-i facă o bucurie de ziua lui. Așa că a hotărât să-l ducă într-un magazin de telefoane să-și aleagă unul.

Fiecare telefon este inscripţionat cu un număr ce reprezintă performanţa acestuia. Cu cât numărul este mai mare, cu atât telefonul este mai bun. Andrei l-a dorit pe cel mai performant (cu numărul cel mai mare) dar tatăl lui i l-a cumpărat pe al doilea ca performanță.

Dându-se numărul n de smatphone-uri și performanța fiecăruia, să se determine:

1. Numărul cu care este inscripționat telefonul dorit de Andrei;
2. Numărul cu care este inscripționat telefonul pe care l-a primit Andrei.

Detalii

Problema Smartphone Operații I/O smartphone.in/smartphone.out
Limita timp 0.5 secunde Limita memorie Total: 64 MB / Stivă 10 MB
Id soluție #50091980 Utilizator Bicioc Teodora (teodora90)
Fișier smartphone.cpp Dimensiune 378 B
Data încărcării 26 Martie 2024, 20:10 Scor / rezultat Eroare de compilare

Evaluare


Mesaj compilare

smartphone.cpp: In function 'int main()':
smartphone.cpp:11:7: error: no match for 'operator>' (operand types are 'std::ifstream {aka std::basic_ifstream<char>}' and 'int')
   fin > x;

       ^
smartphone.cpp:11:7: note: candidates are:
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:64:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from smartphone.cpp:1:
/usr/include/c++/4.8/bits/stl_pair.h:233:5: note: template<class _T1, class _T2> constexpr bool std::operator>(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)
     operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
     ^
/usr/include/c++/4.8/bits/stl_pair.h:233:5: note:   template argument deduction/substitution failed:
smartphone.cpp:11:9: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'const std::pair<_T1, _T2>'
   fin > x;

         ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from smartphone.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:309:5: note: template<class _Iterator> bool std::operator>(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
     operator>(const reverse_iterator<_Iterator>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:309:5: note:   template argument deduction/substitution failed:
smartphone.cpp:11:9: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'const std::reverse_iterator<_Iterator>'
   fin > x;

         ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from smartphone.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:359:5: note: template<class _IteratorL, class _IteratorR> bool std::operator>(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)
     operator>(const reverse_iterator<_IteratorL>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:359:5: note:   template argument deduction/substitution failed:
smartphone.cpp:11:9: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'const std::reverse_iterator<_Iterator>'
   fin > x;

         ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from smartphone.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:1079:5: note: template<class _IteratorL, class _IteratorR> bool std::operator>(const std::move_iterator<_Iterator>&, const std::move_iterator<_IteratorR>&)
     operator>(const move_iterator<_IteratorL>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:1079:5: note:   template argument deduction/substitution failed:
smartphone.cpp:11:9: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'const std::move_iterator<_Iterator>'
   fin > x;

         ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from smartphone.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator.h:1085:5: note: template<class _Iterator> bool std::operator>(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&)
     operator>(const move_iterator<_Iterator>& __x,
     ^
/usr/include/c++/4.8/bits/stl_iterator.h:1085:5: note:   template argument deduction/substitution failed:
smartphone.cpp:11:9: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'const std::move_iterator<_Iterator>'
   fin > x;

         ^
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/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from smartphone.cpp:1:
/usr/include/c++/4.8/bits/basic_string.h:2606:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const std::basic_string<_CharT, _Traits, _Alloc>&, const std::basic_string<_CharT, _Traits, _Alloc>&)
     operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2606:5: note:   template argument deduction/substitution failed:
smartphone.cpp:11:9: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'const std::basic_string<_CharT, _Traits, _Alloc>'
   fin > x;

         ^
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/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from smartphone.cpp:1:
/usr/include/c++/4.8/bits/basic_string.h:2618:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const std::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
     operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2618:5: note:   template argument deduction/substitution failed:
smartphone.cpp:11:9: note:   'std::ifstream {aka std::basic_ifstream<char>}' is not derived from 'const std::basic_string<_CharT, _Traits, _Alloc>'
   fin > x;

         ^
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/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from smartphone.cpp:1:
/usr/include/c++/4.8/bits/basic_string.h:2630:5: note: template<class _CharT, class _Traits, class _Alloc> bool std::operator>(const _CharT*, const std::basic_string<_CharT, _Traits, _Alloc>&)
     operator>(const _CharT* __lhs,
     ^
/usr/include/c++/4.8/bits/basic_string.h:2630:5: note:   template argument deduction/substitution failed:
smartphone.cpp:11:9: note:   mismatched types 'const _CharT*' and 'std::basic_ifstream<char>'
   fin > x;

         ^

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 Smartphone 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.