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Detalii evaluare #54279232

Rezumat problemă

#3070 dreptunghi

Se citesc două numere a și b reprezentând lungimile laturilor unui dreptunghi. Pentru dreptunghiul dat, să se calculeze: perimetrul P, aria A și pătratul lungimii diagonalei D.

folclor

Rezolvă

Detalii

Problema dreptunghi Operații I/O tastatură/ecran
Limita timp 0.1 secunde Limita memorie Total: 64 MB / Stivă 8 MB
Id soluție #54279232 Utilizator tirnovanu alexia (alexia_m_11)
Fișier dreptunghi.cpp Dimensiune 295 B
Data încărcării 24 Noiembrie 2024, 16:51 Scor / rezultat Eroare de compilare

Evaluare


Mesaj compilare

dreptunghi.cpp: In function 'int main()':
dreptunghi.cpp:8:8: error: cannot bind 'std::basic_istream<char>::__istream_type {aka std::basic_istream<char>}' lvalue to 'std::basic_istream<char>&&'
     cin>>a>>" ">>b;

        ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from dreptunghi.cpp:1:
/usr/include/c++/4.8/istream:872:5: error:   initializing argument 1 of 'std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&) [with _CharT = char; _Traits = std::char_traits<char>; _Tp = const char [2]]'
     operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
     ^
dreptunghi.cpp:11:14: error: lvalue required as left operand of assignment
         p=2*a=2*b;

              ^
dreptunghi.cpp:15:16: error: lvalue required as left operand of assignment
             d*d=a*a+b*b;

                ^
dreptunghi.cpp:18:9: error: no match for 'operator>>' (operand types are 'std::ostream {aka std::basic_ostream<char>}' and 'int')
     cout>>p>>" ">>aria>>" ">>d;

         ^
dreptunghi.cpp:18:9: 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/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from dreptunghi.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:
dreptunghi.cpp:18:11: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     cout>>p>>" ">>aria>>" ">>d;

           ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/iostream:40,
                 from dreptunghi.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:
dreptunghi.cpp:18:11: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     cout>>p>>" ">>aria>>" ">>d;

           ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/iostream:40,
                 from dreptunghi.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:
dreptunghi.cpp:18:11: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     cout>>p>>" ">>aria>>" ">>d;

           ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from dreptunghi.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:
dreptunghi.cpp:18:11: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
     cout>>p>>" ">>aria>>" ">>d;

           ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from dreptunghi.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:
dreptunghi.cpp:18:11: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
     cout>>p>>" ">>aria>>" ">>d;

           ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from dreptunghi.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:
dreptunghi.cpp:18:11: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
     cout>>p>>" ">>aria>>" ">>d;

           ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from dreptunghi.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:
dreptunghi.cpp:18:11: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
     cout>>p>>" ">>aria>>" ">>d;

           ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from dreptunghi.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:
dreptunghi.cpp:18:11: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     cout>>p>>" ">>aria>>" ">>d;

           ^

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 dreptunghi 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.