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Detalii evaluare #54408825

Rezumat problemă

#3479 2lan C++

Se da un număr n. Calculați ultima cifră a lui \({2}^{n}\).

Rezolvă

Detalii

Problema 2lan Operații I/O 2lan.in/2lan.out
Limita timp 0.1 secunde Limita memorie Total: 0.1 MB / Stivă 0.1 MB
Id soluție #54408825 Utilizator Chisor Ramona (Bubu2299)
Fișier lan.cpp Dimensiune 315 B
Data încărcării 27 Noiembrie 2024, 19:28 Scor / rezultat Eroare de compilare

Evaluare


Mesaj compilare

lan.cpp: In function 'int main()':
lan.cpp:10:6: error: no match for 'operator>>' (operand types are 'int' and 'std::ifstream {aka std::basic_ifstream<char>}')
     n>>a;

      ^
lan.cpp:10:6: 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/istream:38,
                 from /usr/include/c++/4.8/fstream:38,
                 from lan.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:
lan.cpp:10:8: note:   mismatched types 'std::basic_istream<_CharT, _Traits>' and 'int'
     n>>a;

        ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from lan.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:
lan.cpp:10:8: note:   mismatched types 'std::basic_istream<_CharT, _Traits>' and 'int'
     n>>a;

        ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/fstream:38,
                 from lan.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:
lan.cpp:10:8: note:   mismatched types 'std::basic_istream<_CharT, _Traits>' and 'int'
     n>>a;

        ^
In file included from /usr/include/c++/4.8/fstream:38:0,
                 from lan.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:
lan.cpp:10:8: note:   mismatched types 'std::basic_istream<char, _Traits>' and 'int'
     n>>a;

        ^
In file included from /usr/include/c++/4.8/fstream:38:0,
                 from lan.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:
lan.cpp:10:8: note:   mismatched types 'std::basic_istream<char, _Traits>' and 'int'
     n>>a;

        ^
In file included from /usr/include/c++/4.8/fstream:38:0,
                 from lan.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:
lan.cpp:10:8: note:   mismatched types 'std::basic_istream<char, _Traits>' and 'int'
     n>>a;

        ^
In file included from /usr/include/c++/4.8/fstream:38:0,
                 from lan.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:
lan.cpp:10:8: note:   mismatched types 'std::basic_istream<char, _Traits>' and 'int'
     n>>a;

        ^
In file included from /usr/include/c++/4.8/fstream:38:0,
                 from lan.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:
lan.cpp:10:8: note:   mismatched types 'std::basic_istream<_CharT, _Traits>' and 'int'
     n>>a;

        ^

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 2lan 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.