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Detalii evaluare #54957584

Rezumat problemă

#179 triunghi

Să se scrie un program care citeşte trei numere reale şi verifică dacă aceste numere pot fi lungimile laturilor unui triunghi.

Rezolvă

Detalii

Problema triunghi Operații I/O tastatură/ecran
Limita timp 0.1 secunde Limita memorie Total: 64 MB / Stivă 8 MB
Id soluție #54957584 Utilizator Patrascu Marian (Patrascu_Marian)
Fișier triunghi.cpp Dimensiune 211 B
Data încărcării 13 Decembrie 2024, 15:33 Scor / rezultat Eroare de compilare

Evaluare


Mesaj compilare

triunghi.cpp: In function 'int main()':
triunghi.cpp:11:14: error: no match for 'operator>>' (operand types are 'std::ostream {aka std::basic_ostream<char>}' and 'const char [3]')
     else cout>>"nu";

              ^
triunghi.cpp:11:14: 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 triunghi.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:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     else cout>>"nu";

                ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/iostream:40,
                 from triunghi.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:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     else cout>>"nu";

                ^
In file included from /usr/include/c++/4.8/istream:882:0,
                 from /usr/include/c++/4.8/iostream:40,
                 from triunghi.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:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     else cout>>"nu";

                ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from triunghi.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:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
     else cout>>"nu";

                ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from triunghi.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:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
     else cout>>"nu";

                ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from triunghi.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:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
     else cout>>"nu";

                ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from triunghi.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:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>'
     else cout>>"nu";

                ^
In file included from /usr/include/c++/4.8/iostream:40:0,
                 from triunghi.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:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     else cout>>"nu";

                ^
In file included from triunghi.cpp:2:0:
/usr/include/c++/4.8/iomanip:68:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Resetiosflags)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Resetiosflags __f)
     ^
/usr/include/c++/4.8/iomanip:68:5: note:   template argument deduction/substitution failed:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     else cout>>"nu";

                ^
In file included from triunghi.cpp:2:0:
/usr/include/c++/4.8/iomanip:98:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setiosflags)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Setiosflags __f)
     ^
/usr/include/c++/4.8/iomanip:98:5: note:   template argument deduction/substitution failed:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     else cout>>"nu";

                ^
In file included from triunghi.cpp:2:0:
/usr/include/c++/4.8/iomanip:129:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setbase)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Setbase __f)
     ^
/usr/include/c++/4.8/iomanip:129:5: note:   template argument deduction/substitution failed:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     else cout>>"nu";

                ^
In file included from triunghi.cpp:2:0:
/usr/include/c++/4.8/iomanip:167:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setfill<_CharT>)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Setfill<_CharT> __f)
     ^
/usr/include/c++/4.8/iomanip:167:5: note:   template argument deduction/substitution failed:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     else cout>>"nu";

                ^
In file included from triunghi.cpp:2:0:
/usr/include/c++/4.8/iomanip:197:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setprecision)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Setprecision __f)
     ^
/usr/include/c++/4.8/iomanip:197:5: note:   template argument deduction/substitution failed:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     else cout>>"nu";

                ^
In file included from triunghi.cpp:2:0:
/usr/include/c++/4.8/iomanip:227:5: note: template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setw)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Setw __f)
     ^
/usr/include/c++/4.8/iomanip:227:5: note:   template argument deduction/substitution failed:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     else cout>>"nu";

                ^
In file included from triunghi.cpp:2:0:
/usr/include/c++/4.8/iomanip:261:5: note: template<class _CharT, class _Traits, class _MoneyT> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Get_money<_MoneyT>)
     operator>>(basic_istream<_CharT, _Traits>& __is, _Get_money<_MoneyT> __f)
     ^
/usr/include/c++/4.8/iomanip:261:5: note:   template argument deduction/substitution failed:
triunghi.cpp:11:16: note:   'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>'
     else cout>>"nu";

                ^

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 triunghi 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.